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n2.1-dev
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111
.gitignore
vendored
111
.gitignore
vendored
@@ -1,78 +1,45 @@
|
|||||||
*.a
|
.config
|
||||||
|
.version
|
||||||
*.o
|
*.o
|
||||||
*.d
|
*.d
|
||||||
*.def
|
|
||||||
*.dll
|
|
||||||
*.dylib
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|
||||||
*.exe
|
*.exe
|
||||||
*.exp
|
*.ho
|
||||||
*.gcda
|
|
||||||
*.gcno
|
|
||||||
*.h.c
|
|
||||||
*.ilk
|
|
||||||
*.lib
|
|
||||||
*.pc
|
|
||||||
*.pdb
|
|
||||||
*.so
|
|
||||||
*.so.*
|
|
||||||
*.ver
|
|
||||||
*-example
|
*-example
|
||||||
*-test
|
*-test
|
||||||
*_g
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*_g
|
||||||
/.config
|
config.*
|
||||||
/.version
|
doc/*.1
|
||||||
/ffmpeg
|
doc/*.html
|
||||||
/ffplay
|
doc/*.pod
|
||||||
/ffprobe
|
doxy
|
||||||
/ffserver
|
ffmpeg
|
||||||
/config.*
|
ffplay
|
||||||
/coverage.info
|
ffprobe
|
||||||
/version.h
|
ffserver
|
||||||
/doc/*.1
|
libavcodec/libavcodec*
|
||||||
/doc/*.3
|
libavcore/libavcore*
|
||||||
/doc/*.html
|
libavdevice/libavdevice*
|
||||||
/doc/*.pod
|
libavfilter/libavfilter*
|
||||||
/doc/config.texi
|
libavformat/libavformat*
|
||||||
/doc/avoptions_codec.texi
|
libavutil/avconfig.h
|
||||||
/doc/avoptions_format.texi
|
libavutil/libavutil*
|
||||||
/doc/examples/decoding_encoding
|
libpostproc/libpostproc*
|
||||||
/doc/examples/demuxing
|
libswscale/libswscale*
|
||||||
/doc/examples/filtering_audio
|
tests/audiogen
|
||||||
/doc/examples/filtering_video
|
tests/base64
|
||||||
/doc/examples/metadata
|
tests/data
|
||||||
/doc/examples/muxing
|
tests/rotozoom
|
||||||
/doc/examples/pc-uninstalled
|
tests/seek_test
|
||||||
/doc/examples/resampling_audio
|
tests/tiny_psnr
|
||||||
/doc/examples/scaling_video
|
tests/videogen
|
||||||
/doc/fate.txt
|
tests/vsynth1
|
||||||
/doc/doxy/html/
|
tests/vsynth2
|
||||||
/doc/print_options
|
tools/cws2fws
|
||||||
/lcov/
|
tools/graph2dot
|
||||||
/libavcodec/*_tablegen
|
tools/lavfi-showfiltfmts
|
||||||
/libavcodec/*_tables.c
|
tools/pktdumper
|
||||||
/libavcodec/*_tables.h
|
tools/probetest
|
||||||
/libavutil/avconfig.h
|
tools/qt-faststart
|
||||||
/tests/audiogen
|
tools/trasher
|
||||||
/tests/base64
|
tools/trasher*.d
|
||||||
/tests/data/
|
version.h
|
||||||
/tests/rotozoom
|
|
||||||
/tests/tiny_psnr
|
|
||||||
/tests/tiny_ssim
|
|
||||||
/tests/videogen
|
|
||||||
/tests/vsynth1/
|
|
||||||
/tools/aviocat
|
|
||||||
/tools/ffbisect
|
|
||||||
/tools/bisect.need
|
|
||||||
/tools/cws2fws
|
|
||||||
/tools/fourcc2pixfmt
|
|
||||||
/tools/ffescape
|
|
||||||
/tools/ffeval
|
|
||||||
/tools/ffhash
|
|
||||||
/tools/graph2dot
|
|
||||||
/tools/ismindex
|
|
||||||
/tools/pktdumper
|
|
||||||
/tools/probetest
|
|
||||||
/tools/qt-faststart
|
|
||||||
/tools/trasher
|
|
||||||
/tools/seek_print
|
|
||||||
/tools/zmqsend
|
|
||||||
|
|||||||
@@ -500,3 +500,5 @@ necessary. Here is a sample; alter the names:
|
|||||||
Ty Coon, President of Vice
|
Ty Coon, President of Vice
|
||||||
|
|
||||||
That's all there is to it!
|
That's all there is to it!
|
||||||
|
|
||||||
|
|
||||||
|
|||||||
57
CREDITS
57
CREDITS
@@ -1,6 +1,53 @@
|
|||||||
See the Git history of the project (git://source.ffmpeg.org/ffmpeg) to
|
This file contains the name of the people who have contributed to
|
||||||
get the names of people who have contributed to FFmpeg.
|
FFmpeg. The names are sorted alphabetically by last name.
|
||||||
|
|
||||||
To check the log, you can type the command "git log" in the FFmpeg
|
Dénes Balatoni
|
||||||
source directory, or browse the online repository at
|
Michel Bardiaux
|
||||||
http://source.ffmpeg.org.
|
Fabrice Bellard
|
||||||
|
Patrice Bensoussan
|
||||||
|
Alex Beregszaszi
|
||||||
|
BERO
|
||||||
|
Thilo Borgmann
|
||||||
|
Mario Brito
|
||||||
|
Ronald Bultje
|
||||||
|
Alex Converse
|
||||||
|
Maarten Daniels
|
||||||
|
Reimar Doeffinger
|
||||||
|
Tim Ferguson
|
||||||
|
Brian Foley
|
||||||
|
Arpad Gereoffy
|
||||||
|
Philip Gladstone
|
||||||
|
Vladimir Gneushev
|
||||||
|
Roine Gustafsson
|
||||||
|
David Hammerton
|
||||||
|
Wolfgang Hesseler
|
||||||
|
Marc Hoffman
|
||||||
|
Falk Hueffner
|
||||||
|
Aurélien Jacobs
|
||||||
|
Steven Johnson
|
||||||
|
Zdenek Kabelac
|
||||||
|
Robin Kay
|
||||||
|
Todd Kirby
|
||||||
|
Nick Kurshev
|
||||||
|
Benjamin Larsson
|
||||||
|
Loïc Le Loarer
|
||||||
|
Daniel Maas
|
||||||
|
Mike Melanson
|
||||||
|
Loren Merritt
|
||||||
|
Jeff Muizelaar
|
||||||
|
Michael Niedermayer
|
||||||
|
François Revol
|
||||||
|
Peter Ross
|
||||||
|
Måns Rullgård
|
||||||
|
Stefano Sabatini
|
||||||
|
Roman Shaposhnik
|
||||||
|
Oded Shimon
|
||||||
|
Dieter Shirley
|
||||||
|
Konstantin Shishkov
|
||||||
|
Juan J. Sierralta
|
||||||
|
Ewald Snel
|
||||||
|
Sascha Sommer
|
||||||
|
Leon van Stuivenberg
|
||||||
|
Roberto Togni
|
||||||
|
Lionel Ulmer
|
||||||
|
Reynaldo Verdejo
|
||||||
|
|||||||
710
Changelog
710
Changelog
@@ -1,574 +1,149 @@
|
|||||||
Entries are sorted chronologically from oldest to youngest within each release,
|
Entries are sorted chronologically from oldest to youngest within each release,
|
||||||
releases are sorted from youngest to oldest.
|
releases are sorted from youngest to oldest.
|
||||||
|
|
||||||
version 2.0:
|
version 0.6.6:
|
||||||
|
- id3v2: fix skipping extended header in id3v2.4
|
||||||
- curves filter
|
- nsvdec: Fix use of uninitialized streams
|
||||||
- reference-counting for AVFrame and AVPacket data
|
- nsvdec: Be more careful with av_malloc()
|
||||||
- ffmpeg now fails when input options are used for output file
|
- nsvdec: Propagate errors
|
||||||
or vice versa
|
- dv: check stype
|
||||||
- support for Monkey's Audio versions from 3.93
|
- dv: Fix null pointer dereference due to ach=0
|
||||||
- perms and aperms filters
|
- dv: Fix small stack overread related to CVE-2011-3929 and CVE-2011-3936.
|
||||||
- audio filtering support in ffplay
|
- atrac3: Fix crash in tonal component decoding
|
||||||
- 10% faster aac encoding on x86 and MIPS
|
- mjpegbdec: Fix overflow in SOS
|
||||||
- sine audio filter source
|
- kgv1dec: Increase offsets array size so it is large enough
|
||||||
- WebP demuxing and decoding support
|
- motionpixels: decode only the 111 complete frames for fate
|
||||||
- new ffmpeg options -filter_script and -filter_complex_script, which allow a
|
- motionpixels: Clip YUV values after applying a gradient
|
||||||
filtergraph description to be read from a file
|
- celp filters: Do not read earlier than the start of the 'out' vector
|
||||||
- OpenCL support
|
- vqavideo: return error if image size is not a multiple of block size (CVE-2012-0947)
|
||||||
- audio phaser filter
|
- dpcm: ignore extra unpaired bytes in stereo streams (CVE-2011-3951)
|
||||||
- separatefields filter
|
- aacsbr: prevent out of bounds memcpy() (CVE-2012-0850)
|
||||||
- libquvi demuxer
|
- h264: Add check for invalid chroma_format_idc (CVE-2012-0851)
|
||||||
- uniform options syntax across all filters
|
- adpcm: ADPCM Electronic Arts has always two channels (CVE-2012-0852)
|
||||||
- telecine filter
|
- shorten: remove VLA and check for buffer overflow
|
||||||
- new interlace filter
|
- shorten: Prevent block size from increasing
|
||||||
- smptehdbars source
|
- shorten: Fix out of bound writes in fix_bitshift()
|
||||||
- inverse telecine filters (fieldmatch and decimate)
|
- shorten: check for realloc failure (CVE-2012-0858)
|
||||||
- colorbalance filter
|
- shorten: Use separate pointers for the allocated memory for decoded samples (CVE-2012-0858)
|
||||||
- colorchannelmixer filter
|
- kmvc: Check palsize (CVE-2011-3952)
|
||||||
- The matroska demuxer can now output proper verbatim ASS packets. It will
|
- qdm2: clip array indices returned by qdm2_get_vlc()
|
||||||
become the default at the next libavformat major bump.
|
- configure: properly check for mingw-w64 through installed headers
|
||||||
- decent native animated GIF encoding
|
- mingw32: properly check if vfw capture is supported by the system headers
|
||||||
- asetrate filter
|
- mingw32: merge checks for mingw-w64 and mingw32-runtime >= 3.15 into one
|
||||||
- interleave filter
|
- dxva2: define required feature selection macros
|
||||||
- timeline editing with filters
|
- png: check bit depth for PAL8/Y400A pixel formats
|
||||||
- vidstabdetect and vidstabtransform filters for video stabilization using
|
- ea: check chunk_size for validity
|
||||||
the vid.stab library
|
- tqi: Pass errors from the MB decoder
|
||||||
- astats filter
|
|
||||||
- trim and atrim filters
|
|
||||||
- ffmpeg -t and -ss (output-only) options are now sample-accurate when
|
|
||||||
transcoding audio
|
|
||||||
- Matroska muxer can now put the index at the beginning of the file.
|
|
||||||
- extractplanes filter
|
|
||||||
- avectorscope filter
|
|
||||||
- ADPCM DTK decoder
|
|
||||||
- ADP demuxer
|
|
||||||
- RSD demuxer
|
|
||||||
- RedSpark demuxer
|
|
||||||
- ADPCM IMA Radical decoder
|
|
||||||
- zmq filters
|
|
||||||
- DCT denoiser filter (dctdnoiz)
|
|
||||||
- Wavelet denoiser filter ported from libmpcodecs as owdenoise (formerly "ow")
|
|
||||||
- Apple Intermediate Codec decoder
|
|
||||||
- Escape 130 video decoder
|
|
||||||
- FTP protocol support
|
|
||||||
- V4L2 output device
|
|
||||||
- 3D LUT filter (lut3d)
|
|
||||||
- SMPTE 302M audio encoder
|
|
||||||
- support for slice multithreading in libavfilter
|
|
||||||
- Hald CLUT support (generation and filtering)
|
|
||||||
- VC-1 interlaced B-frame support
|
|
||||||
- support for WavPack muxing (raw and in Matroska)
|
|
||||||
- XVideo output device
|
|
||||||
- vignette filter
|
|
||||||
- True Audio (TTA) encoder
|
|
||||||
- Go2Webinar decoder
|
|
||||||
- mcdeint filter ported from libmpcodecs
|
|
||||||
- sab filter ported from libmpcodecs
|
|
||||||
- ffprobe -show_chapters option
|
|
||||||
- WavPack encoding through libwavpack
|
|
||||||
- rotate filter
|
|
||||||
- spp filter ported from libmpcodecs
|
|
||||||
- libgme support
|
|
||||||
- psnr filter
|
|
||||||
|
|
||||||
|
|
||||||
version 1.2:
|
version 0.6.5:
|
||||||
|
- vorbis: An additional defense in the Vorbis codec. (CVE-2011-3895)
|
||||||
- VDPAU hardware acceleration through normal hwaccel
|
- vorbisdec: Fix decoding bug with channel handling.
|
||||||
- SRTP support
|
- matroskadec: Fix a bug where a pointer was cached to an array that might
|
||||||
- Error diffusion dither in Swscale
|
later move due to a realloc(). (CVE-2011-3893)
|
||||||
- Chained Ogg support
|
- vorbis: Avoid some out-of-bounds reads. (CVE-2011-3893)
|
||||||
- Theora Midstream reconfiguration support
|
- vp3: fix oob read for negative tokens and memleaks on error, (CVE-2011-3892)
|
||||||
- EVRC decoder
|
- vp3: fix streams with non-zero last coefficient.
|
||||||
- audio fade filter
|
|
||||||
- filtering audio with unknown channel layout
|
|
||||||
- allpass, bass, bandpass, bandreject, biquad, equalizer, highpass, lowpass
|
|
||||||
and treble audio filter
|
|
||||||
- improved showspectrum filter, with multichannel support and sox-like colors
|
|
||||||
- histogram filter
|
|
||||||
- tee muxer
|
|
||||||
- il filter ported from libmpcodecs
|
|
||||||
- support ID3v2 tags in ASF files
|
|
||||||
- encrypted TTA stream decoding support
|
|
||||||
- RF64 support in WAV muxer
|
|
||||||
- noise filter ported from libmpcodecs
|
|
||||||
- Subtitles character encoding conversion
|
|
||||||
- blend filter
|
|
||||||
- stereo3d filter ported from libmpcodecs
|
|
||||||
|
|
||||||
|
|
||||||
version 1.1:
|
version 0.6.4:
|
||||||
|
- 4xm: Add a check in decode_i_frame to prevent buffer overreads
|
||||||
- stream disposition information printing in ffprobe
|
- wma: initialize prev_block_len_bits, next_block_len_bits, and block_len_bits.
|
||||||
- filter for loudness analysis following EBU R128
|
- swscale: #include "libavutil/mathematics.h"
|
||||||
- Opus encoder using libopus
|
- vp3dec: Check coefficient index in vp3_dequant() (CVE-2011-4352)
|
||||||
- ffprobe -select_streams option
|
- svq1dec: call avcodec_set_dimensions() after dimensions changed. (CVE-2011-4579)
|
||||||
- Pinnacle TARGA CineWave YUV16 decoder
|
- commits related to CVE-2011-4353:
|
||||||
- TAK demuxer, decoder and parser
|
- vp6: Fix illegal read.
|
||||||
- DTS-HD demuxer
|
- vp6: Reset the internal state when aborting key frames header parsing
|
||||||
- remove -same_quant, it hasn't worked for years
|
- vp6: Check for huffman tree build errors
|
||||||
- FFM2 support
|
- vp6: partially propagate huffman tree building errors during coeff model parsing and fix misspelling
|
||||||
- X-Face image encoder and decoder
|
- commits related to CVE-2011-4351:
|
||||||
- 24-bit FLAC encoding
|
- qdm2: check output buffer size before decoding
|
||||||
- multi-channel ALAC encoding up to 7.1
|
- Fix qdm2 decoder packet handling to match the api
|
||||||
- metadata (INFO tag) support in WAV muxer
|
- Fix out of bound reads in the QDM2 decoder.
|
||||||
- subtitles raw text decoder
|
- Check for out of bound writes in the QDM2 decoder.
|
||||||
- support for building DLLs using MSVC
|
- vmd: fix segfaults on corruped streams (CVE-2011-4364)
|
||||||
- LVF demuxer
|
- rv34: Check for invalid slice offsets
|
||||||
- ffescape tool
|
- rv34: Fix potential overreads
|
||||||
- metadata (info chunk) support in CAF muxer
|
- rv34: Avoid NULL dereference on corrupted bitstream
|
||||||
- field filter ported from libmpcodecs
|
- rv10: Reject slices that does not have the same type as the first one
|
||||||
- AVR demuxer
|
- oggdec: fix out of bound write in the ogg demuxer
|
||||||
- geq filter ported from libmpcodecs
|
- smacker: fix a few off by 1 errors
|
||||||
- remove ffserver daemon mode
|
- Check for invalid VLC value in smacker decoder.
|
||||||
- AST muxer/demuxer
|
- Check and propagate errors when VLC trees cannot be built in smacker decoder.
|
||||||
- new expansion syntax for drawtext
|
- Fixed off by one packet size allocation in the smacker demuxer.
|
||||||
- BRender PIX image decoder
|
- Check for invalid packet size in the smacker demuxer.
|
||||||
- ffprobe -show_entries option
|
- ape demuxer: fix segfault on memory allocation failure.
|
||||||
- ffprobe -sections option
|
- Fixed size given to init_get_bits() in xan decoder.
|
||||||
- ADPCM IMA Dialogic decoder
|
- smacker demuxer: handle possible av_realloc() failure.
|
||||||
- BRSTM demuxer
|
- Fixed segfault with wavpack decoder on corrupted decorrelation terms sub-blocks.
|
||||||
- animated GIF decoder and demuxer
|
- indeo2: fail if input buffer too small
|
||||||
- PVF demuxer
|
- indeo2: init_get_bits size in bits instead of bytes
|
||||||
- subtitles filter
|
- wavpack: Check error codes rather than working around error conditions.
|
||||||
- IRCAM muxer/demuxer
|
- Fixed invalid writes and reads in wavpack decoder on corrupted bitstreams.
|
||||||
- Paris Audio File demuxer
|
- cpu detection: avoid a signed overflow
|
||||||
- Virtual concatenation demuxer
|
- h264: correct implicit weight table computation for long ref pics
|
||||||
- VobSub demuxer
|
- h264: correct the check for invalid long term frame index in MMCO decode
|
||||||
- JSON captions for TED talks decoding support
|
- rv10/20: tell decoder to use edge emulation
|
||||||
- SOX Resampler support in libswresample
|
- flvenc: use int64_t to store offsets
|
||||||
- aselect filter
|
- VC-1: fix reading of custom PAR.
|
||||||
- SGI RLE 8-bit decoder
|
- h264: notice memory allocation failure
|
||||||
- Silicon Graphics Motion Video Compressor 1 & 2 decoder
|
- libx264: do not set pic quality if no frame is output
|
||||||
- Silicon Graphics Movie demuxer
|
- mxfdec: Include FF_INPUT_BUFFER_PADDING_SIZE when allocating extradata.
|
||||||
- apad filter
|
- rv30: return AVERROR(EINVAL) instead of EINVAL
|
||||||
- Resolution & pixel format change support with multithreading for H.264
|
- Do not decode RV30 files if the extradata is too small
|
||||||
- documentation split into per-component manuals
|
- aacps: skip some memcpy() if src and dst would be equal
|
||||||
- pp (postproc) filter ported from MPlayer
|
- mpegts: fix Continuity Counter error detection
|
||||||
- NIST Sphere demuxer
|
- alsa: fallback to buffer_size/4 for period_size.
|
||||||
- MPL2, VPlayer, MPlayer, AQTitle, PJS and SubViewer v1 subtitles demuxers and decoders
|
- mxfenc: fix ignored drop flag in binary timecode representation.
|
||||||
- Sony Wave64 muxer
|
- dca: set AVCodecContext frame_size for DTS audio
|
||||||
- adobe and limelight publisher authentication in RTMP
|
- H.264: fix overreads of qscale_table
|
||||||
- data: URI scheme
|
- postprocess.c: filter name needs to be double 0 terminated
|
||||||
- support building on the Plan 9 operating system
|
- Replace strncpy() with av_strlcpy() in libpostproc.
|
||||||
- kerndeint filter ported from MPlayer
|
- jpegdec: actually search for and parse RSTn
|
||||||
- histeq filter ported from VirtualDub
|
- riff: Add mpgv MPEG-2 fourcc
|
||||||
- Megalux Frame demuxer
|
- Added M701 codec_tag for mpeg2video
|
||||||
- 012v decoder
|
|
||||||
- Improved AVC Intra decoding support
|
|
||||||
|
|
||||||
|
|
||||||
version 1.0:
|
version 0.6.3:
|
||||||
|
|
||||||
- INI and flat output in ffprobe
|
- fix compilation with --enable-hardcoded-tables
|
||||||
- Scene detection in libavfilter
|
- mjpeg: Detect overreads in mjpeg_decode_scan() and error out.
|
||||||
- Indeo Audio decoder
|
- aac: add headers needed for log2f()
|
||||||
- channelsplit audio filter
|
- lavf: inspect more frames for fps when container time base is coarse
|
||||||
- setnsamples audio filter
|
- AMV: disable DR1 and don't override EMU_EDGE
|
||||||
- atempo filter
|
(addresses http://seclists.org/bugtraq/2011/Apr/257)
|
||||||
- ffprobe -show_data option
|
- Fix memory (re)allocation in matroskadec.c (MSVR11-011/CVE-2011-3504)
|
||||||
- RTMPT protocol support
|
- Fix some crashes with invalid bitstreams in the CAVS decoder
|
||||||
- iLBC encoding/decoding via libilbc
|
(CVE-2011-3362, CVE-2011-3973, CVE-2011-3974)
|
||||||
- Microsoft Screen 1 decoder
|
- Compilation fixes for gcc-4.6, testsuite now passes again
|
||||||
- join audio filter
|
- Fix a heap corruption issue in the OGG decoder
|
||||||
- audio channel mapping filter
|
- Backported the Android VisualOn AAC encoder wrapper from 0.7.2
|
||||||
- Microsoft ATC Screen decoder
|
|
||||||
- RTSP listen mode
|
|
||||||
- TechSmith Screen Codec 2 decoder
|
|
||||||
- AAC encoding via libfdk-aac
|
|
||||||
- Microsoft Expression Encoder Screen decoder
|
|
||||||
- RTMPS protocol support
|
|
||||||
- RTMPTS protocol support
|
|
||||||
- RTMPE protocol support
|
|
||||||
- RTMPTE protocol support
|
|
||||||
- showwaves and showspectrum filter
|
|
||||||
- LucasArts SMUSH playback support
|
|
||||||
- SAMI, RealText and SubViewer demuxers and decoders
|
|
||||||
- Heart Of Darkness PAF playback support
|
|
||||||
- iec61883 device
|
|
||||||
- asettb filter
|
|
||||||
- new option: -progress
|
|
||||||
- 3GPP Timed Text encoder/decoder
|
|
||||||
- GeoTIFF decoder support
|
|
||||||
- ffmpeg -(no)stdin option
|
|
||||||
- Opus decoder using libopus
|
|
||||||
- caca output device using libcaca
|
|
||||||
- alphaextract and alphamerge filters
|
|
||||||
- concat filter
|
|
||||||
- flite filter
|
|
||||||
- Canopus Lossless Codec decoder
|
|
||||||
- bitmap subtitles in filters (experimental and temporary)
|
|
||||||
- MP2 encoding via TwoLAME
|
|
||||||
- bmp parser
|
|
||||||
- smptebars source
|
|
||||||
- asetpts filter
|
|
||||||
- hue filter
|
|
||||||
- ICO muxer
|
|
||||||
- SubRip encoder and decoder without embedded timing
|
|
||||||
- edge detection filter
|
|
||||||
- framestep filter
|
|
||||||
- ffmpeg -shortest option is now per-output file
|
|
||||||
-pass and -passlogfile are now per-output stream
|
|
||||||
- volume measurement filter
|
|
||||||
- Ut Video encoder
|
|
||||||
- Microsoft Screen 2 decoder
|
|
||||||
- smartblur filter ported from MPlayer
|
|
||||||
- CPiA decoder
|
|
||||||
- decimate filter ported from MPlayer
|
|
||||||
- RTP depacketization of JPEG
|
|
||||||
- Smooth Streaming live segmenter muxer
|
|
||||||
- F4V muxer
|
|
||||||
- sendcmd and asendcmd filters
|
|
||||||
- WebVTT demuxer and decoder (simple tags supported)
|
|
||||||
- RTP packetization of JPEG
|
|
||||||
- faststart option in the MOV/MP4 muxer
|
|
||||||
- support for building with MSVC
|
|
||||||
|
|
||||||
|
|
||||||
version 0.11:
|
version 0.6.3:
|
||||||
|
|
||||||
- Fixes: CVE-2012-2772, CVE-2012-2774, CVE-2012-2775, CVE-2012-2776, CVE-2012-2777,
|
- AMV: Fix possibly exploitable crash.
|
||||||
CVE-2012-2779, CVE-2012-2782, CVE-2012-2783, CVE-2012-2784, CVE-2012-2785,
|
- Fix apparently exploitable race condition.
|
||||||
CVE-2012-2786, CVE-2012-2787, CVE-2012-2788, CVE-2012-2789, CVE-2012-2790,
|
(addresses http://seclists.org/bugtraq/2011/Apr/257)
|
||||||
CVE-2012-2791, CVE-2012-2792, CVE-2012-2793, CVE-2012-2794, CVE-2012-2795,
|
|
||||||
CVE-2012-2796, CVE-2012-2797, CVE-2012-2798, CVE-2012-2799, CVE-2012-2800,
|
version 0.6.2:
|
||||||
CVE-2012-2801, CVE-2012-2802, CVE-2012-2803, CVE-2012-2804,
|
|
||||||
- v408 Quicktime and Microsoft AYUV Uncompressed 4:4:4:4 encoder and decoder
|
- fix compilation with --enable-hardcoded-tables
|
||||||
- setfield filter
|
- Fix invalid reads in VC-1 decoding (related to CVE-2011-0723)
|
||||||
- CDXL demuxer and decoder
|
- Do not attempt to decode APE file with no frames
|
||||||
- Apple ProRes encoder
|
(adresses http://packetstorm.linuxsecurity.com/1103-exploits/vlc105-dos.txt)
|
||||||
- ffprobe -count_packets and -count_frames options
|
|
||||||
- Sun Rasterfile Encoder
|
|
||||||
- ID3v2 attached pictures reading and writing
|
|
||||||
- WMA Lossless decoder
|
|
||||||
- bluray protocol
|
|
||||||
- blackdetect filter
|
|
||||||
- libutvideo encoder wrapper (--enable-libutvideo)
|
|
||||||
- swapuv filter
|
|
||||||
- bbox filter
|
|
||||||
- XBM encoder and decoder
|
|
||||||
- RealAudio Lossless decoder
|
|
||||||
- ZeroCodec decoder
|
|
||||||
- tile video filter
|
|
||||||
- Metal Gear Solid: The Twin Snakes demuxer
|
|
||||||
- OpenEXR image decoder
|
|
||||||
- removelogo filter
|
|
||||||
- drop support for ffmpeg without libavfilter
|
|
||||||
- drawtext video filter: fontconfig support
|
|
||||||
- ffmpeg -benchmark_all option
|
|
||||||
- super2xsai filter ported from libmpcodecs
|
|
||||||
- add libavresample audio conversion library for compatibility
|
|
||||||
- MicroDVD decoder
|
|
||||||
- Avid Meridien (AVUI) encoder and decoder
|
|
||||||
- accept + prefix to -pix_fmt option to disable automatic conversions.
|
|
||||||
- complete audio filtering in libavfilter and ffmpeg
|
|
||||||
- add fps filter
|
|
||||||
- vorbis parser
|
|
||||||
- png parser
|
|
||||||
- audio mix filter
|
|
||||||
- ffv1: support (draft) version 1.3
|
|
||||||
|
|
||||||
|
|
||||||
version 0.10:
|
version 0.6.1:
|
||||||
|
|
||||||
- Fixes: CVE-2011-3929, CVE-2011-3934, CVE-2011-3935, CVE-2011-3936,
|
- fix autodetection of E-AC-3 substream samples
|
||||||
CVE-2011-3937, CVE-2011-3940, CVE-2011-3941, CVE-2011-3944,
|
- performance fix for seekable HTTP
|
||||||
CVE-2011-3945, CVE-2011-3946, CVE-2011-3947, CVE-2011-3949,
|
- backport AAC-HE v2 from trunk
|
||||||
CVE-2011-3950, CVE-2011-3951, CVE-2011-3952
|
- add missing VP80 fourcc code for the VP8 codec
|
||||||
- v410 Quicktime Uncompressed 4:4:4 10-bit encoder and decoder
|
- small documentation fixes
|
||||||
- SBaGen (SBG) binaural beats script demuxer
|
- fix several potentially exploitable issues in the FLIC decoder
|
||||||
- OpenMG Audio muxer
|
(addresses CVE-2010-3429)
|
||||||
- Timecode extraction in DV and MOV
|
|
||||||
- thumbnail video filter
|
|
||||||
- XML output in ffprobe
|
|
||||||
- asplit audio filter
|
|
||||||
- tinterlace video filter
|
|
||||||
- astreamsync audio filter
|
|
||||||
- amerge audio filter
|
|
||||||
- ISMV (Smooth Streaming) muxer
|
|
||||||
- GSM audio parser
|
|
||||||
- SMJPEG muxer
|
|
||||||
- XWD encoder and decoder
|
|
||||||
- Automatic thread count based on detection number of (available) CPU cores
|
|
||||||
- y41p Brooktree Uncompressed 4:1:1 12-bit encoder and decoder
|
|
||||||
- ffprobe -show_error option
|
|
||||||
- Avid 1:1 10-bit RGB Packer codec
|
|
||||||
- v308 Quicktime Uncompressed 4:4:4 encoder and decoder
|
|
||||||
- yuv4 libquicktime packed 4:2:0 encoder and decoder
|
|
||||||
- ffprobe -show_frames option
|
|
||||||
- silencedetect audio filter
|
|
||||||
- ffprobe -show_program_version, -show_library_versions, -show_versions options
|
|
||||||
- rv34: frame-level multi-threading
|
|
||||||
- optimized iMDCT transform on x86 using SSE for for mpegaudiodec
|
|
||||||
- Improved PGS subtitle decoder
|
|
||||||
- dumpgraph option to lavfi device
|
|
||||||
- r210 and r10k encoders
|
|
||||||
- ffwavesynth decoder
|
|
||||||
- aviocat tool
|
|
||||||
- ffeval tool
|
|
||||||
|
|
||||||
|
|
||||||
version 0.9:
|
|
||||||
|
|
||||||
- openal input device added
|
|
||||||
- boxblur filter added
|
|
||||||
- BWF muxer
|
|
||||||
- Flash Screen Video 2 decoder
|
|
||||||
- lavfi input device added
|
|
||||||
- added avconv, which is almost the same for now, except
|
|
||||||
for a few incompatible changes in the options, which will hopefully make them
|
|
||||||
easier to use. The changes are:
|
|
||||||
* The options placement is now strictly enforced! While in theory the
|
|
||||||
options for ffmpeg should be given in [input options] -i INPUT [output
|
|
||||||
options] OUTPUT order, in practice it was possible to give output options
|
|
||||||
before the -i and it mostly worked. Except when it didn't - the behavior was
|
|
||||||
a bit inconsistent. In avconv, it is not possible to mix input and output
|
|
||||||
options. All non-global options are reset after an input or output filename.
|
|
||||||
* All per-file options are now truly per-file - they apply only to the next
|
|
||||||
input or output file and specifying different values for different files
|
|
||||||
will now work properly (notably -ss and -t options).
|
|
||||||
* All per-stream options are now truly per-stream - it is possible to
|
|
||||||
specify which stream(s) should a given option apply to. See the Stream
|
|
||||||
specifiers section in the avconv manual for details.
|
|
||||||
* In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
|
|
||||||
sense that they're specified after the output filename instead of before,
|
|
||||||
like all other options. In avconv this irregularity is removed, all options
|
|
||||||
apply to the next input or output file.
|
|
||||||
* -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
|
|
||||||
irregular and highly confusing, they were also redundant. In avconv the -map
|
|
||||||
option will create new streams in the output file and map input streams to
|
|
||||||
them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
|
|
||||||
each stream in the first input file.
|
|
||||||
* The -map option now has slightly different and more powerful syntax:
|
|
||||||
+ Colons (':') are used to separate file index/stream type/stream index
|
|
||||||
instead of dots. Comma (',') is used to separate the sync stream instead
|
|
||||||
of colon.. This is done for consistency with other options.
|
|
||||||
+ It's possible to specify stream type. E.g. -map 0:a:2 creates an
|
|
||||||
output stream from the third input audio stream.
|
|
||||||
+ Omitting the stream index now maps all the streams of the given type,
|
|
||||||
not just the first. E.g. -map 0:s creates output streams for all the
|
|
||||||
subtitle streams in the first input file.
|
|
||||||
+ Since -map can now match multiple streams, negative mappings were
|
|
||||||
introduced. Negative mappings disable some streams from an already
|
|
||||||
defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
|
|
||||||
all the stream in the first input file, except for the second audio
|
|
||||||
stream'.
|
|
||||||
* There is a new option -c (or -codec) for choosing the decoder/encoder to
|
|
||||||
use, which allows to precisely specify target stream(s) consistently with
|
|
||||||
other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
|
|
||||||
libvorbis sets the codec for the first audio stream and -c copy copies all
|
|
||||||
the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
|
|
||||||
aliases to -c:v/a/s
|
|
||||||
* It is now possible to precisely specify which stream should an AVOption
|
|
||||||
apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
|
|
||||||
-b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
|
|
||||||
syntax is deprecated and will stop working soon.
|
|
||||||
* -map_chapters now takes only an input file index and applies to the next
|
|
||||||
output file. This is consistent with how all the other options work.
|
|
||||||
* -map_metadata now takes only an input metadata specifier and applies to
|
|
||||||
the next output file. Output metadata specifier is now part of the option
|
|
||||||
name, similarly to the AVOptions/map/codec feature above.
|
|
||||||
* -metadata can now be used to set metadata on streams and chapters, e.g.
|
|
||||||
-metadata:s:1 language=eng sets the language of the first stream to 'eng'.
|
|
||||||
This made -vlang/-alang/-slang options redundant, so they were removed.
|
|
||||||
* -qscale option now uses stream specifiers and applies to all streams, not
|
|
||||||
just video. I.e. plain -qscale number would now apply to all streams. To get
|
|
||||||
the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
|
|
||||||
and -aq is now an alias for -q:a.
|
|
||||||
* -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
|
|
||||||
uses stream specifiers. Use -bsf:v/a/s instead of the old options.
|
|
||||||
* -itsscale option now uses stream specifiers, so its argument is only the
|
|
||||||
scale parameter.
|
|
||||||
* -intra option was removed, use -g 0 for the same effect.
|
|
||||||
* -psnr option was removed, use -flags +psnr for the same effect.
|
|
||||||
* -vf option is now an alias to the new -filter option, which uses stream specifiers.
|
|
||||||
* -vframes/-aframes/-dframes options are now aliases to the new -frames option.
|
|
||||||
* -vtag/-atag/-stag options are now aliases to the new -tag option.
|
|
||||||
- XMV demuxer
|
|
||||||
- LOAS demuxer
|
|
||||||
- ashowinfo filter added
|
|
||||||
- Windows Media Image decoder
|
|
||||||
- amovie source added
|
|
||||||
- LATM muxer/demuxer
|
|
||||||
- Speex encoder via libspeex
|
|
||||||
- JSON output in ffprobe
|
|
||||||
- WTV muxer
|
|
||||||
- Optional C++ Support (needed for libstagefright)
|
|
||||||
- H.264 Decoding on Android via Stagefright
|
|
||||||
- Prores decoder
|
|
||||||
- BIN/XBIN/ADF/IDF text file decoder
|
|
||||||
- aconvert audio filter added
|
|
||||||
- audio support to lavfi input device added
|
|
||||||
- libcdio-paranoia input device for audio CD grabbing
|
|
||||||
- Apple ProRes decoder
|
|
||||||
- CELT in Ogg demuxing
|
|
||||||
- G.723.1 demuxer and decoder
|
|
||||||
- libmodplug support (--enable-libmodplug)
|
|
||||||
- VC-1 interlaced decoding
|
|
||||||
- libutvideo wrapper (--enable-libutvideo)
|
|
||||||
- aevalsrc audio source added
|
|
||||||
- Ut Video decoder
|
|
||||||
- Speex encoding via libspeex
|
|
||||||
- 4:2:2 H.264 decoding support
|
|
||||||
- 4:2:2 and 4:4:4 H.264 encoding with libx264
|
|
||||||
- Pulseaudio input device
|
|
||||||
- Prores encoder
|
|
||||||
- Video Decoder Acceleration (VDA) HWAccel module.
|
|
||||||
- replacement Indeo 3 decoder
|
|
||||||
- new ffmpeg option: -map_channel
|
|
||||||
- volume audio filter added
|
|
||||||
- earwax audio filter added
|
|
||||||
- libv4l2 support (--enable-libv4l2)
|
|
||||||
- TLS/SSL and HTTPS protocol support
|
|
||||||
- AVOptions API rewritten and documented
|
|
||||||
- most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
|
|
||||||
AVCodecContext deprecated. Codec private options should be used instead.
|
|
||||||
- Properly working defaults in libx264 wrapper, support for native presets.
|
|
||||||
- Encrypted OMA files support
|
|
||||||
- Discworld II BMV decoding support
|
|
||||||
- VBLE Decoder
|
|
||||||
- OS X Video Decoder Acceleration (VDA) support
|
|
||||||
- compact and csv output in ffprobe
|
|
||||||
- pan audio filter
|
|
||||||
- IFF Amiga Continuous Bitmap (ACBM) decoder
|
|
||||||
- ass filter
|
|
||||||
- CRI ADX audio format muxer and demuxer
|
|
||||||
- Playstation Portable PMP format demuxer
|
|
||||||
- Microsoft Windows ICO demuxer
|
|
||||||
- life source
|
|
||||||
- PCM format support in OMA demuxer
|
|
||||||
- CLJR encoder
|
|
||||||
- new option: -report
|
|
||||||
- Dxtory capture format decoder
|
|
||||||
- cellauto source
|
|
||||||
- Simple segmenting muxer
|
|
||||||
- Indeo 4 decoder
|
|
||||||
- SMJPEG demuxer
|
|
||||||
|
|
||||||
|
|
||||||
version 0.8:
|
|
||||||
|
|
||||||
- many many things we forgot because we rather write code than changelogs
|
|
||||||
- WebM support in Matroska de/muxer
|
|
||||||
- low overhead Ogg muxing
|
|
||||||
- MMS-TCP support
|
|
||||||
- VP8 de/encoding via libvpx
|
|
||||||
- Demuxer for On2's IVF format
|
|
||||||
- Pictor/PC Paint decoder
|
|
||||||
- HE-AAC v2 decoder
|
|
||||||
- HE-AAC v2 encoding with libaacplus
|
|
||||||
- libfaad2 wrapper removed
|
|
||||||
- DTS-ES extension (XCh) decoding support
|
|
||||||
- native VP8 decoder
|
|
||||||
- RTSP tunneling over HTTP
|
|
||||||
- RTP depacketization of SVQ3
|
|
||||||
- -strict inofficial replaced by -strict unofficial
|
|
||||||
- ffplay -exitonkeydown and -exitonmousedown options added
|
|
||||||
- native GSM / GSM MS decoder
|
|
||||||
- RTP depacketization of QDM2
|
|
||||||
- ANSI/ASCII art playback system
|
|
||||||
- Lego Mindstorms RSO de/muxer
|
|
||||||
- libavcore added (and subsequently removed)
|
|
||||||
- SubRip subtitle file muxer and demuxer
|
|
||||||
- Chinese AVS encoding via libxavs
|
|
||||||
- ffprobe -show_packets option added
|
|
||||||
- RTP packetization of Theora and Vorbis
|
|
||||||
- RTP depacketization of MP4A-LATM
|
|
||||||
- RTP packetization and depacketization of VP8
|
|
||||||
- hflip filter
|
|
||||||
- Apple HTTP Live Streaming demuxer
|
|
||||||
- a64 codec
|
|
||||||
- MMS-HTTP support
|
|
||||||
- G.722 ADPCM audio encoder/decoder
|
|
||||||
- R10k video decoder
|
|
||||||
- ocv_smooth filter
|
|
||||||
- frei0r wrapper filter
|
|
||||||
- change crop filter syntax to width:height:x:y
|
|
||||||
- make the crop filter accept parametric expressions
|
|
||||||
- make ffprobe accept AVFormatContext options
|
|
||||||
- yadif filter
|
|
||||||
- blackframe filter
|
|
||||||
- Demuxer for Leitch/Harris' VR native stream format (LXF)
|
|
||||||
- RTP depacketization of the X-QT QuickTime format
|
|
||||||
- SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
|
|
||||||
- cropdetect filter
|
|
||||||
- ffmpeg -crop* options removed
|
|
||||||
- transpose filter added
|
|
||||||
- ffmpeg -force_key_frames option added
|
|
||||||
- demuxer for receiving raw rtp:// URLs without an SDP description
|
|
||||||
- single stream LATM/LOAS decoder
|
|
||||||
- setpts filter added
|
|
||||||
- Win64 support for optimized x86 assembly functions
|
|
||||||
- MJPEG/AVI1 to JPEG/JFIF bitstream filter
|
|
||||||
- ASS subtitle encoder and decoder
|
|
||||||
- IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
|
|
||||||
- overlay filter added
|
|
||||||
- rename aspect filter to setdar, and pixelaspect to setsar
|
|
||||||
- IEC 61937 demuxer
|
|
||||||
- Mobotix .mxg demuxer
|
|
||||||
- frei0r source added
|
|
||||||
- hqdn3d filter added
|
|
||||||
- RTP depacketization of QCELP
|
|
||||||
- FLAC parser added
|
|
||||||
- gradfun filter added
|
|
||||||
- AMR-WB decoder
|
|
||||||
- replace the ocv_smooth filter with a more generic ocv filter
|
|
||||||
- Windows Televison (WTV) demuxer
|
|
||||||
- FFmpeg metadata format muxer and demuxer
|
|
||||||
- SubRip (srt) subtitle encoder and decoder
|
|
||||||
- floating-point AC-3 encoder added
|
|
||||||
- Lagarith decoder
|
|
||||||
- ffmpeg -copytb option added
|
|
||||||
- IVF muxer added
|
|
||||||
- Wing Commander IV movies decoder added
|
|
||||||
- movie source added
|
|
||||||
- Bink version 'b' audio and video decoder
|
|
||||||
- Bitmap Brothers JV playback system
|
|
||||||
- Apple HTTP Live Streaming protocol handler
|
|
||||||
- sndio support for playback and record
|
|
||||||
- Linux framebuffer input device added
|
|
||||||
- Chronomaster DFA decoder
|
|
||||||
- DPX image encoder
|
|
||||||
- MicroDVD subtitle file muxer and demuxer
|
|
||||||
- Playstation Portable PMP format demuxer
|
|
||||||
- fieldorder video filter added
|
|
||||||
- AAC encoding via libvo-aacenc
|
|
||||||
- AMR-WB encoding via libvo-amrwbenc
|
|
||||||
- xWMA demuxer
|
|
||||||
- Mobotix MxPEG decoder
|
|
||||||
- VP8 frame-multithreading
|
|
||||||
- NEON optimizations for VP8
|
|
||||||
- Lots of deprecated API cruft removed
|
|
||||||
- fft and imdct optimizations for AVX (Sandy Bridge) processors
|
|
||||||
- showinfo filter added
|
|
||||||
- SMPTE 302M AES3 audio decoder
|
|
||||||
- Apple Core Audio Format muxer
|
|
||||||
- 9bit and 10bit per sample support in the H.264 decoder
|
|
||||||
- 9bit and 10bit FFV1 encoding / decoding
|
|
||||||
- split filter added
|
|
||||||
- select filter added
|
|
||||||
- sdl output device added
|
|
||||||
- libmpcodecs video filter support (3 times as many filters than before)
|
|
||||||
- mpeg2 aspect ratio dection fixed
|
|
||||||
- libxvid aspect pickiness fixed
|
|
||||||
- Frame multithreaded decoding
|
|
||||||
- E-AC-3 audio encoder
|
|
||||||
- ac3enc: add channel coupling support
|
|
||||||
- floating-point sample format support to the ac3, eac3, dca, aac, and vorbis decoders.
|
|
||||||
- H264/MPEG frame-level multi-threading
|
|
||||||
- All av_metadata_* functions renamed to av_dict_* and moved to libavutil
|
|
||||||
- 4:4:4 H.264 decoding support
|
|
||||||
- 10-bit H.264 optimizations for x86
|
|
||||||
- lut, lutrgb, and lutyuv filters added
|
|
||||||
- buffersink libavfilter sink added
|
|
||||||
- Bump libswscale for recently reported ABI break
|
|
||||||
- New J2K encoder (via OpenJPEG)
|
|
||||||
|
|
||||||
|
|
||||||
version 0.7:
|
|
||||||
|
|
||||||
- all the changes for 0.8, but keeping API/ABI compatibility with the 0.6 release
|
|
||||||
|
|
||||||
|
|
||||||
version 0.6:
|
version 0.6:
|
||||||
@@ -577,7 +152,7 @@ version 0.6:
|
|||||||
- deprecated vhook subsystem removed
|
- deprecated vhook subsystem removed
|
||||||
- deprecated old scaler removed
|
- deprecated old scaler removed
|
||||||
- VQF demuxer
|
- VQF demuxer
|
||||||
- Alpha channel scaler
|
- alpha channel scaler
|
||||||
- PCX encoder
|
- PCX encoder
|
||||||
- RTP packetization of H.263
|
- RTP packetization of H.263
|
||||||
- RTP packetization of AMR
|
- RTP packetization of AMR
|
||||||
@@ -646,7 +221,11 @@ version 0.6:
|
|||||||
- 35% faster VP3/Theora decoding
|
- 35% faster VP3/Theora decoding
|
||||||
- faster AAC decoding
|
- faster AAC decoding
|
||||||
- faster H.264 decoding
|
- faster H.264 decoding
|
||||||
- RealAudio 1.0 (14.4K) encoder
|
- WebM support in Matroska de/muxer
|
||||||
|
- low overhead Ogg muxing
|
||||||
|
- VP8 de/encoding via libvpx
|
||||||
|
- CODEC_CAP_EXPERIMENTAL added
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
version 0.5:
|
version 0.5:
|
||||||
@@ -809,7 +388,7 @@ version 0.5:
|
|||||||
- Gopher client support
|
- Gopher client support
|
||||||
- MXF D-10 muxer
|
- MXF D-10 muxer
|
||||||
- generic metadata API
|
- generic metadata API
|
||||||
- flash ScreenVideo2 encoder
|
|
||||||
|
|
||||||
|
|
||||||
version 0.4.9-pre1:
|
version 0.4.9-pre1:
|
||||||
@@ -896,6 +475,7 @@ version 0.4.9-pre1:
|
|||||||
- FunCom ISS audio file demuxer and according ADPCM decoding
|
- FunCom ISS audio file demuxer and according ADPCM decoding
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
version 0.4.8:
|
version 0.4.8:
|
||||||
|
|
||||||
- MPEG-2 video encoding (Michael)
|
- MPEG-2 video encoding (Michael)
|
||||||
@@ -907,6 +487,7 @@ version 0.4.8:
|
|||||||
- Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
|
- Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
version 0.4.7:
|
version 0.4.7:
|
||||||
|
|
||||||
- RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
|
- RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
|
||||||
@@ -948,6 +529,7 @@ version 0.4.7:
|
|||||||
.. And lots more new enhancements and fixes.
|
.. And lots more new enhancements and fixes.
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
version 0.4.6:
|
version 0.4.6:
|
||||||
|
|
||||||
- completely new integer only MPEG audio layer 1/2/3 decoder rewritten
|
- completely new integer only MPEG audio layer 1/2/3 decoder rewritten
|
||||||
@@ -985,6 +567,7 @@ version 0.4.6:
|
|||||||
- 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
|
- 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
version 0.4.5:
|
version 0.4.5:
|
||||||
|
|
||||||
- some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
|
- some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
|
||||||
@@ -1012,10 +595,11 @@ version 0.4.5:
|
|||||||
- MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
|
- MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
|
||||||
- ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
|
- ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
|
||||||
- Windows porting of file converter
|
- Windows porting of file converter
|
||||||
- added MJPEG raw format (input/output)
|
- added MJPEG raw format (input/ouput)
|
||||||
- added JPEG image format support (input/output)
|
- added JPEG image format support (input/output)
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
version 0.4.4:
|
version 0.4.4:
|
||||||
|
|
||||||
- fixed some std header definitions (Bjorn Lindgren
|
- fixed some std header definitions (Bjorn Lindgren
|
||||||
@@ -1041,6 +625,7 @@ version 0.4.4:
|
|||||||
segfault)
|
segfault)
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
version 0.4.3:
|
version 0.4.3:
|
||||||
|
|
||||||
- BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
|
- BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
|
||||||
@@ -1062,6 +647,7 @@ version 0.4.3:
|
|||||||
instead of a protocol)
|
instead of a protocol)
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
version 0.4.2:
|
version 0.4.2:
|
||||||
|
|
||||||
- added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
|
- added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
|
||||||
@@ -1092,6 +678,7 @@ version 0.4.1:
|
|||||||
- factorized some motion estimation code
|
- factorized some motion estimation code
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
version 0.4.0:
|
version 0.4.0:
|
||||||
|
|
||||||
- removing grab code from ffserver and moved it to ffmpeg. Added
|
- removing grab code from ffserver and moved it to ffmpeg. Added
|
||||||
@@ -1120,11 +707,13 @@ version 0.4.0:
|
|||||||
codecs
|
codecs
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
version 0.3.4:
|
version 0.3.4:
|
||||||
|
|
||||||
- added stereo in MPEG audio encoder
|
- added stereo in MPEG audio encoder
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
version 0.3.3:
|
version 0.3.3:
|
||||||
|
|
||||||
- added 'high quality' mode which use motion vectors. It can be used in
|
- added 'high quality' mode which use motion vectors. It can be used in
|
||||||
@@ -1133,12 +722,14 @@ version 0.3.3:
|
|||||||
bitrates and large GOP size
|
bitrates and large GOP size
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
version 0.3.2: small fixes
|
version 0.3.2: small fixes
|
||||||
|
|
||||||
- ASF fixes
|
- ASF fixes
|
||||||
- put_seek bug fix
|
- put_seek bug fix
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
version 0.3.1: added avi/divx support
|
version 0.3.1: added avi/divx support
|
||||||
|
|
||||||
- added AVI support
|
- added AVI support
|
||||||
@@ -1146,4 +737,5 @@ version 0.3.1: added avi/divx support
|
|||||||
- added sound for flash format (not tested)
|
- added sound for flash format (not tested)
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
version 0.3: initial public release
|
version 0.3: initial public release
|
||||||
|
|||||||
File diff suppressed because it is too large
Load Diff
4
INSTALL
4
INSTALL
@@ -9,7 +9,3 @@ path when launching 'configure', e.g. '/ffmpegdir/ffmpeg/configure'.
|
|||||||
2) Then type 'make' to build FFmpeg. GNU Make 3.81 or later is required.
|
2) Then type 'make' to build FFmpeg. GNU Make 3.81 or later is required.
|
||||||
|
|
||||||
3) Type 'make install' to install all binaries and libraries you built.
|
3) Type 'make install' to install all binaries and libraries you built.
|
||||||
|
|
||||||
NOTICE
|
|
||||||
|
|
||||||
- Non system dependencies (e.g. libx264, libvpx) are disabled by default.
|
|
||||||
|
|||||||
96
LICENSE
96
LICENSE
@@ -1,4 +1,5 @@
|
|||||||
FFmpeg:
|
FFmpeg:
|
||||||
|
-------
|
||||||
|
|
||||||
Most files in FFmpeg are under the GNU Lesser General Public License version 2.1
|
Most files in FFmpeg are under the GNU Lesser General Public License version 2.1
|
||||||
or later (LGPL v2.1+). Read the file COPYING.LGPLv2.1 for details. Some other
|
or later (LGPL v2.1+). Read the file COPYING.LGPLv2.1 for details. Some other
|
||||||
@@ -13,90 +14,37 @@ configure to activate them. In this case, FFmpeg's license changes to GPL v2+.
|
|||||||
Specifically, the GPL parts of FFmpeg are
|
Specifically, the GPL parts of FFmpeg are
|
||||||
|
|
||||||
- libpostproc
|
- libpostproc
|
||||||
- libmpcodecs
|
- optional MMX optimizations for YUV to RGB colorspace conversion in
|
||||||
|
libswscale/x86/yuv2rgb_template.c
|
||||||
- optional x86 optimizations in the files
|
- optional x86 optimizations in the files
|
||||||
|
libavcodec/x86/h264_deblock_sse2.asm
|
||||||
|
libavcodec/x86/h264_idct_sse2.asm
|
||||||
libavcodec/x86/idct_mmx.c
|
libavcodec/x86/idct_mmx.c
|
||||||
- libutvideo encoding/decoding wrappers in
|
|
||||||
libavcodec/libutvideo*.cpp
|
|
||||||
- the X11 grabber in libavdevice/x11grab.c
|
- the X11 grabber in libavdevice/x11grab.c
|
||||||
- the swresample test app in
|
|
||||||
libswresample/swresample-test.c
|
There are a handful of files under other licensing terms, namely:
|
||||||
- the texi2pod.pl tool
|
|
||||||
- the following filters in libavfilter:
|
* The files libavcodec/jfdctfst.c, libavcodec/jfdctint.c, libavcodec/jrevdct.c
|
||||||
- f_ebur128.c
|
are taken from libjpeg, see the top of the files for licensing details.
|
||||||
- vf_blackframe.c
|
|
||||||
- vf_boxblur.c
|
|
||||||
- vf_colormatrix.c
|
|
||||||
- vf_cropdetect.c
|
|
||||||
- vf_decimate.c
|
|
||||||
- vf_delogo.c
|
|
||||||
- vf_geq.c
|
|
||||||
- vf_histeq.c
|
|
||||||
- vf_hqdn3d.c
|
|
||||||
- vf_hue.c
|
|
||||||
- vf_kerndeint.c
|
|
||||||
- vf_mcdeint.c
|
|
||||||
- vf_mp.c
|
|
||||||
- vf_noise.c
|
|
||||||
- vf_owdenoise.c
|
|
||||||
- vf_pp.c
|
|
||||||
- vf_sab.c
|
|
||||||
- vf_smartblur.c
|
|
||||||
- vf_spp.c
|
|
||||||
- vf_stereo3d.c
|
|
||||||
- vf_super2xsai.c
|
|
||||||
- vf_tinterlace.c
|
|
||||||
- vf_yadif.c
|
|
||||||
- vsrc_mptestsrc.c
|
|
||||||
|
|
||||||
Should you, for whatever reason, prefer to use version 3 of the (L)GPL, then
|
Should you, for whatever reason, prefer to use version 3 of the (L)GPL, then
|
||||||
the configure parameter --enable-version3 will activate this licensing option
|
the configure parameter --enable-version3 will activate this licensing option
|
||||||
for you. Read the file COPYING.LGPLv3 or, if you have enabled GPL parts,
|
for you. Read the file COPYING.LGPLv3 or, if you have enabled GPL parts,
|
||||||
COPYING.GPLv3 to learn the exact legal terms that apply in this case.
|
COPYING.GPLv3 to learn the exact legal terms that apply in this case.
|
||||||
|
|
||||||
There are a handful of files under other licensing terms, namely:
|
|
||||||
|
|
||||||
* The files libavcodec/jfdctfst.c, libavcodec/jfdctint_template.c and
|
external libraries:
|
||||||
libavcodec/jrevdct.c are taken from libjpeg, see the top of the files for
|
-------------------
|
||||||
licensing details. Specifically note that you must credit the IJG in the
|
|
||||||
documentation accompanying your program if you only distribute executables.
|
|
||||||
You must also indicate any changes including additions and deletions to
|
|
||||||
those three files in the documentation.
|
|
||||||
|
|
||||||
|
Some external libraries, e.g. libx264, are under GPL and can be used in
|
||||||
|
conjunction with FFmpeg. They require --enable-gpl to be passed to configure
|
||||||
|
as well.
|
||||||
|
|
||||||
external libraries
|
The OpenCORE external libraries are under the Apache License 2.0. That license
|
||||||
==================
|
is incompatible with the LGPL v2.1 and the GPL v2, but not with version 3 of
|
||||||
|
those licenses. So to combine the OpenCORE libraries with FFmpeg, the license
|
||||||
|
version needs to be upgraded by passing --enable-version3 to configure.
|
||||||
|
|
||||||
FFmpeg can be combined with a number of external libraries, which sometimes
|
The nonfree external library libfaac can be hooked up in FFmpeg. You need to
|
||||||
affect the licensing of binaries resulting from the combination.
|
pass --enable-nonfree to configure to enable it. Employ this option with care
|
||||||
|
as FFmpeg then becomes nonfree and unredistributable.
|
||||||
compatible libraries
|
|
||||||
--------------------
|
|
||||||
|
|
||||||
The following libraries are under GPL:
|
|
||||||
- frei0r
|
|
||||||
- libcdio
|
|
||||||
- libutvideo
|
|
||||||
- libvidstab
|
|
||||||
- libx264
|
|
||||||
- libxavs
|
|
||||||
- libxvid
|
|
||||||
When combining them with FFmpeg, FFmpeg needs to be licensed as GPL as well by
|
|
||||||
passing --enable-gpl to configure.
|
|
||||||
|
|
||||||
The OpenCORE and VisualOn libraries are under the Apache License 2.0. That
|
|
||||||
license is incompatible with the LGPL v2.1 and the GPL v2, but not with
|
|
||||||
version 3 of those licenses. So to combine these libraries with FFmpeg, the
|
|
||||||
license version needs to be upgraded by passing --enable-version3 to configure.
|
|
||||||
|
|
||||||
incompatible libraries
|
|
||||||
----------------------
|
|
||||||
|
|
||||||
The Fraunhofer AAC library, FAAC and aacplus are under licenses which
|
|
||||||
are incompatible with the GPLv2 and v3. We do not know for certain if their
|
|
||||||
licenses are compatible with the LGPL.
|
|
||||||
If you wish to enable these libraries, pass --enable-nonfree to configure.
|
|
||||||
But note that if you enable any of these libraries the resulting binary will
|
|
||||||
be under a complex license mix that is more restrictive than the LGPL and that
|
|
||||||
may result in additional obligations. It is possible that these
|
|
||||||
restrictions cause the resulting binary to be unredistributeable.
|
|
||||||
|
|||||||
179
MAINTAINERS
179
MAINTAINERS
@@ -4,17 +4,10 @@ FFmpeg maintainers
|
|||||||
Below is a list of the people maintaining different parts of the
|
Below is a list of the people maintaining different parts of the
|
||||||
FFmpeg code.
|
FFmpeg code.
|
||||||
|
|
||||||
Please try to keep entries where you are the maintainer up to date!
|
|
||||||
|
|
||||||
Names in () mean that the maintainer currently has no time to maintain the code.
|
|
||||||
A (CC <address>) after the name means that the maintainer prefers to be CC-ed on
|
|
||||||
patches and related discussions.
|
|
||||||
|
|
||||||
|
|
||||||
Project Leader
|
Project Leader
|
||||||
==============
|
==============
|
||||||
|
|
||||||
Michael Niedermayer
|
|
||||||
final design decisions
|
final design decisions
|
||||||
|
|
||||||
|
|
||||||
@@ -25,10 +18,7 @@ ffmpeg:
|
|||||||
ffmpeg.c Michael Niedermayer
|
ffmpeg.c Michael Niedermayer
|
||||||
|
|
||||||
ffplay:
|
ffplay:
|
||||||
ffplay.c Marton Balint
|
ffplay.c Michael Niedermayer
|
||||||
|
|
||||||
ffprobe:
|
|
||||||
ffprobe.c Stefano Sabatini
|
|
||||||
|
|
||||||
ffserver:
|
ffserver:
|
||||||
ffserver.c, ffserver.h Baptiste Coudurier
|
ffserver.c, ffserver.h Baptiste Coudurier
|
||||||
@@ -43,14 +33,14 @@ QuickTime faststart:
|
|||||||
Miscellaneous Areas
|
Miscellaneous Areas
|
||||||
===================
|
===================
|
||||||
|
|
||||||
documentation Mike Melanson
|
documentation Mike Melanson, Diego Biurrun
|
||||||
website Robert Swain, Lou Logan
|
website Robert Swain
|
||||||
build system (configure,Makefiles) Diego Biurrun, Mans Rullgard
|
build system (configure,Makefiles) Diego Biurrun, Mans Rullgard
|
||||||
project server Árpád Gereöffy, Michael Niedermayer, Reimar Döffinger
|
project server Diego Biurrun, Mans Rullgard
|
||||||
mailinglists Michael Niedermayer, Baptiste Coudurier, Lou Logan
|
mailinglists Michael Niedermayer, Baptiste Coudurier
|
||||||
presets Robert Swain
|
presets Robert Swain
|
||||||
metadata subsystem Aurelien Jacobs
|
metadata subsystem Aurelien Jacobs
|
||||||
release management Michael Niedermayer
|
release management Diego Biurrun, Reinhard Tartler
|
||||||
|
|
||||||
|
|
||||||
libavutil
|
libavutil
|
||||||
@@ -67,8 +57,6 @@ Other:
|
|||||||
mathematics.c, mathematics.h Michael Niedermayer
|
mathematics.c, mathematics.h Michael Niedermayer
|
||||||
integer.c, integer.h Michael Niedermayer
|
integer.c, integer.h Michael Niedermayer
|
||||||
bswap.h
|
bswap.h
|
||||||
opencl.c, opencl.h Wei Gao
|
|
||||||
ripemd.c, ripemd.h James Almer
|
|
||||||
|
|
||||||
|
|
||||||
libavcodec
|
libavcodec
|
||||||
@@ -89,8 +77,6 @@ Generic Parts:
|
|||||||
bitstream.c, bitstream.h Michael Niedermayer
|
bitstream.c, bitstream.h Michael Niedermayer
|
||||||
CABAC:
|
CABAC:
|
||||||
cabac.h, cabac.c Michael Niedermayer
|
cabac.h, cabac.c Michael Niedermayer
|
||||||
codec names:
|
|
||||||
codec_names.sh Nicolas George
|
|
||||||
DSP utilities:
|
DSP utilities:
|
||||||
dsputils.c, dsputils.h Michael Niedermayer
|
dsputils.c, dsputils.h Michael Niedermayer
|
||||||
entropy coding:
|
entropy coding:
|
||||||
@@ -111,19 +97,17 @@ Generic Parts:
|
|||||||
simple_idct.c, simple_idct.h Michael Niedermayer
|
simple_idct.c, simple_idct.h Michael Niedermayer
|
||||||
postprocessing:
|
postprocessing:
|
||||||
libpostproc/* Michael Niedermayer
|
libpostproc/* Michael Niedermayer
|
||||||
table generation:
|
|
||||||
tableprint.c, tableprint.h Reimar Doeffinger
|
|
||||||
|
|
||||||
Codecs:
|
Codecs:
|
||||||
4xm.c Michael Niedermayer
|
4xm.c Michael Niedermayer
|
||||||
8bps.c Roberto Togni
|
8bps.c Roberto Togni
|
||||||
8svx.c Jaikrishnan Menon
|
8svx.c Jaikrishnan Menon
|
||||||
aasc.c Kostya Shishkov
|
aasc.c Kostya Shishkov
|
||||||
|
aac*, sbr.h Alex Converse
|
||||||
ac3* Justin Ruggles
|
ac3* Justin Ruggles
|
||||||
alacenc.c Jaikrishnan Menon
|
alacenc.c Jaikrishnan Menon
|
||||||
alsdec.c Thilo Borgmann
|
alsdec.c Thilo Borgmann
|
||||||
apedec.c Kostya Shishkov
|
apedec.c Kostya Shishkov
|
||||||
ass* Aurelien Jacobs
|
|
||||||
asv* Michael Niedermayer
|
asv* Michael Niedermayer
|
||||||
atrac3* Benjamin Larsson
|
atrac3* Benjamin Larsson
|
||||||
bgmc.c, bgmc.h Thilo Borgmann
|
bgmc.c, bgmc.h Thilo Borgmann
|
||||||
@@ -132,13 +116,9 @@ Codecs:
|
|||||||
bmp.c Mans Rullgard, Kostya Shishkov
|
bmp.c Mans Rullgard, Kostya Shishkov
|
||||||
cavs* Stefan Gehrer
|
cavs* Stefan Gehrer
|
||||||
celp_filters.* Vitor Sessak
|
celp_filters.* Vitor Sessak
|
||||||
cdxl.c Paul B Mahol
|
|
||||||
cinepak.c Roberto Togni
|
cinepak.c Roberto Togni
|
||||||
cljr Alex Beregszaszi
|
cljr Alex Beregszaszi
|
||||||
cllc.c Derek Buitenhuis
|
|
||||||
cook.c, cookdata.h Benjamin Larsson
|
cook.c, cookdata.h Benjamin Larsson
|
||||||
cpia.c Stephan Hilb
|
|
||||||
crystalhd.c Philip Langdale
|
|
||||||
cscd.c Reimar Doeffinger
|
cscd.c Reimar Doeffinger
|
||||||
dca.c Kostya Shishkov, Benjamin Larsson
|
dca.c Kostya Shishkov, Benjamin Larsson
|
||||||
dnxhd* Baptiste Coudurier
|
dnxhd* Baptiste Coudurier
|
||||||
@@ -147,11 +127,9 @@ Codecs:
|
|||||||
dv.c Roman Shaposhnik
|
dv.c Roman Shaposhnik
|
||||||
eacmv*, eaidct*, eat* Peter Ross
|
eacmv*, eaidct*, eat* Peter Ross
|
||||||
ffv1.c Michael Niedermayer
|
ffv1.c Michael Niedermayer
|
||||||
ffwavesynth.c Nicolas George
|
|
||||||
flac* Justin Ruggles
|
flac* Justin Ruggles
|
||||||
flashsv* Benjamin Larsson
|
flashsv* Benjamin Larsson
|
||||||
flicvideo.c Mike Melanson
|
flicvideo.c Mike Melanson
|
||||||
g722.c Martin Storsjo
|
|
||||||
g726.c Roman Shaposhnik
|
g726.c Roman Shaposhnik
|
||||||
gifdec.c Baptiste Coudurier
|
gifdec.c Baptiste Coudurier
|
||||||
h264* Loren Merritt, Michael Niedermayer
|
h264* Loren Merritt, Michael Niedermayer
|
||||||
@@ -164,43 +142,32 @@ Codecs:
|
|||||||
indeo5* Kostya Shishkov
|
indeo5* Kostya Shishkov
|
||||||
interplayvideo.c Mike Melanson
|
interplayvideo.c Mike Melanson
|
||||||
ivi* Kostya Shishkov
|
ivi* Kostya Shishkov
|
||||||
jacosub* Clément Bœsch
|
|
||||||
jpeg2000* Nicolas Bertrand
|
|
||||||
jpeg_ls.c Kostya Shishkov
|
jpeg_ls.c Kostya Shishkov
|
||||||
jvdec.c Peter Ross
|
|
||||||
kmvc.c Kostya Shishkov
|
kmvc.c Kostya Shishkov
|
||||||
lcl*.c Roberto Togni, Reimar Doeffinger
|
lcl*.c Roberto Togni, Reimar Doeffinger
|
||||||
libcelt_dec.c Nicolas George
|
|
||||||
libgsm.c Michel Bardiaux
|
libgsm.c Michel Bardiaux
|
||||||
libdirac* David Conrad
|
libdirac* David Conrad
|
||||||
libopenjpeg.c Jaikrishnan Menon
|
libopenjpeg.c Jaikrishnan Menon
|
||||||
libopenjpegenc.c Michael Bradshaw
|
|
||||||
libschroedinger* David Conrad
|
libschroedinger* David Conrad
|
||||||
libspeexdec.c Justin Ruggles
|
libspeexdec.c Justin Ruggles
|
||||||
libtheoraenc.c David Conrad
|
libtheoraenc.c David Conrad
|
||||||
libutvideo* Derek Buitenhuis
|
|
||||||
libvorbis.c David Conrad
|
|
||||||
libxavs.c Stefan Gehrer
|
|
||||||
libx264.c Mans Rullgard, Jason Garrett-Glaser
|
libx264.c Mans Rullgard, Jason Garrett-Glaser
|
||||||
loco.c Kostya Shishkov
|
loco.c Kostya Shishkov
|
||||||
lzo.h, lzo.c Reimar Doeffinger
|
lzo.h, lzo.c Reimar Doeffinger
|
||||||
mdec.c Michael Niedermayer
|
mdec.c Michael Niedermayer
|
||||||
mimic.c Ramiro Polla
|
mimic.c Ramiro Polla
|
||||||
mjpeg*.c Michael Niedermayer
|
mjpeg.c Michael Niedermayer
|
||||||
mlp* Ramiro Polla
|
mlp* Ramiro Polla
|
||||||
mmvideo.c Peter Ross
|
mmvideo.c Peter Ross
|
||||||
mpc* Kostya Shishkov
|
mpc* Kostya Shishkov
|
||||||
mpeg12.c, mpeg12data.h Michael Niedermayer
|
mpeg12.c, mpeg12data.h Michael Niedermayer
|
||||||
mpegvideo.c, mpegvideo.h Michael Niedermayer
|
mpegvideo.c, mpegvideo.h Michael Niedermayer
|
||||||
mqc* Nicolas Bertrand
|
|
||||||
msmpeg4.c, msmpeg4data.h Michael Niedermayer
|
msmpeg4.c, msmpeg4data.h Michael Niedermayer
|
||||||
msrle.c Mike Melanson
|
msrle.c Mike Melanson
|
||||||
msvideo1.c Mike Melanson
|
msvideo1.c Mike Melanson
|
||||||
nellymoserdec.c Benjamin Larsson
|
nellymoserdec.c Benjamin Larsson
|
||||||
nuv.c Reimar Doeffinger
|
nuv.c Reimar Doeffinger
|
||||||
paf.* Paul B Mahol
|
|
||||||
pcx.c Ivo van Poorten
|
pcx.c Ivo van Poorten
|
||||||
pgssubdec.c Reimar Doeffinger
|
|
||||||
ptx.c Ivo van Poorten
|
ptx.c Ivo van Poorten
|
||||||
qcelp* Reynaldo H. Verdejo Pinochet
|
qcelp* Reynaldo H. Verdejo Pinochet
|
||||||
qdm2.c, qdm2data.h Roberto Togni, Benjamin Larsson
|
qdm2.c, qdm2data.h Roberto Togni, Benjamin Larsson
|
||||||
@@ -218,13 +185,10 @@ Codecs:
|
|||||||
s3tc* Ivo van Poorten
|
s3tc* Ivo van Poorten
|
||||||
smacker.c Kostya Shishkov
|
smacker.c Kostya Shishkov
|
||||||
smc.c Mike Melanson
|
smc.c Mike Melanson
|
||||||
smvjpegdec.c Ash Hughes
|
|
||||||
snow.c Michael Niedermayer, Loren Merritt
|
snow.c Michael Niedermayer, Loren Merritt
|
||||||
sonic.c Alex Beregszaszi
|
sonic.c Alex Beregszaszi
|
||||||
srt* Aurelien Jacobs
|
|
||||||
sunrast.c Ivo van Poorten
|
sunrast.c Ivo van Poorten
|
||||||
svq3.c Michael Niedermayer
|
svq3.c Michael Niedermayer
|
||||||
tak* Paul B Mahol
|
|
||||||
targa.c Kostya Shishkov
|
targa.c Kostya Shishkov
|
||||||
tiff.c Kostya Shishkov
|
tiff.c Kostya Shishkov
|
||||||
truemotion1* Mike Melanson
|
truemotion1* Mike Melanson
|
||||||
@@ -232,23 +196,17 @@ Codecs:
|
|||||||
truespeech.c Kostya Shishkov
|
truespeech.c Kostya Shishkov
|
||||||
tscc.c Kostya Shishkov
|
tscc.c Kostya Shishkov
|
||||||
tta.c Alex Beregszaszi, Jaikrishnan Menon
|
tta.c Alex Beregszaszi, Jaikrishnan Menon
|
||||||
ttaenc.c Paul B Mahol
|
|
||||||
txd.c Ivo van Poorten
|
txd.c Ivo van Poorten
|
||||||
ulti* Kostya Shishkov
|
ulti* Kostya Shishkov
|
||||||
v410*.c Derek Buitenhuis
|
|
||||||
vb.c Kostya Shishkov
|
vb.c Kostya Shishkov
|
||||||
vble.c Derek Buitenhuis
|
|
||||||
vc1* Kostya Shishkov
|
vc1* Kostya Shishkov
|
||||||
vcr1.c Michael Niedermayer
|
vcr1.c Michael Niedermayer
|
||||||
vda_h264_dec.c Xidorn Quan
|
|
||||||
vima.c Paul B Mahol
|
|
||||||
vmnc.c Kostya Shishkov
|
vmnc.c Kostya Shishkov
|
||||||
vorbis_enc.c Oded Shimon
|
vorbis_enc.c Oded Shimon
|
||||||
vorbis_dec.c Denes Balatoni, David Conrad
|
vorbis_dec.c Denes Balatoni
|
||||||
vp3* Mike Melanson
|
vp3* Mike Melanson
|
||||||
vp5 Aurelien Jacobs
|
vp5 Aurelien Jacobs
|
||||||
vp6 Aurelien Jacobs
|
vp6 Aurelien Jacobs
|
||||||
vp8 David Conrad, Jason Garrett-Glaser, Ronald Bultje
|
|
||||||
vqavideo.c Mike Melanson
|
vqavideo.c Mike Melanson
|
||||||
wavpack.c Kostya Shishkov
|
wavpack.c Kostya Shishkov
|
||||||
wmaprodec.c Sascha Sommer
|
wmaprodec.c Sascha Sommer
|
||||||
@@ -256,19 +214,13 @@ Codecs:
|
|||||||
wmv2.c Michael Niedermayer
|
wmv2.c Michael Niedermayer
|
||||||
wnv1.c Kostya Shishkov
|
wnv1.c Kostya Shishkov
|
||||||
xan.c Mike Melanson
|
xan.c Mike Melanson
|
||||||
xbm* Paul B Mahol
|
|
||||||
xl.c Kostya Shishkov
|
xl.c Kostya Shishkov
|
||||||
xvmc.c Ivan Kalvachev
|
xvmc.c Ivan Kalvachev
|
||||||
xwd* Paul B Mahol
|
|
||||||
zerocodec.c Derek Buitenhuis
|
|
||||||
zmbv* Kostya Shishkov
|
zmbv* Kostya Shishkov
|
||||||
|
|
||||||
Hardware acceleration:
|
Hardware acceleration:
|
||||||
crystalhd.c Philip Langdale
|
|
||||||
dxva2* Laurent Aimar
|
dxva2* Laurent Aimar
|
||||||
libstagefright.cpp Mohamed Naufal
|
|
||||||
vaapi* Gwenole Beauchesne
|
vaapi* Gwenole Beauchesne
|
||||||
vda* Sebastien Zwickert
|
|
||||||
vdpau* Carl Eugen Hoyos
|
vdpau* Carl Eugen Hoyos
|
||||||
|
|
||||||
|
|
||||||
@@ -278,29 +230,10 @@ libavdevice
|
|||||||
libavdevice/avdevice.h
|
libavdevice/avdevice.h
|
||||||
|
|
||||||
|
|
||||||
iec61883.c Georg Lippitsch
|
|
||||||
libdc1394.c Roman Shaposhnik
|
libdc1394.c Roman Shaposhnik
|
||||||
v4l2.c Luca Abeni
|
v4l2.c Luca Abeni
|
||||||
vfwcap.c Ramiro Polla
|
vfwcap.c Ramiro Polla
|
||||||
dshow.c Roger Pack
|
|
||||||
|
|
||||||
libavfilter
|
|
||||||
===========
|
|
||||||
|
|
||||||
Generic parts:
|
|
||||||
graphdump.c Nicolas George
|
|
||||||
|
|
||||||
Filters:
|
|
||||||
af_amerge.c Nicolas George
|
|
||||||
af_astreamsync.c Nicolas George
|
|
||||||
af_atempo.c Pavel Koshevoy
|
|
||||||
af_pan.c Nicolas George
|
|
||||||
vf_delogo.c Jean Delvare (CC <khali@linux-fr.org>)
|
|
||||||
vf_drawbox.c/drawgrid Andrey Utkin
|
|
||||||
vf_yadif.c Michael Niedermayer
|
|
||||||
|
|
||||||
Sources:
|
|
||||||
vsrc_mandelbrot.c Michael Niedermayer
|
|
||||||
|
|
||||||
libavformat
|
libavformat
|
||||||
===========
|
===========
|
||||||
@@ -315,26 +248,15 @@ Generic parts:
|
|||||||
Muxers/Demuxers:
|
Muxers/Demuxers:
|
||||||
4xm.c Mike Melanson
|
4xm.c Mike Melanson
|
||||||
adtsenc.c Robert Swain
|
adtsenc.c Robert Swain
|
||||||
afc.c Paul B Mahol
|
|
||||||
aiff.c Baptiste Coudurier
|
aiff.c Baptiste Coudurier
|
||||||
ape.c Kostya Shishkov
|
ape.c Kostya Shishkov
|
||||||
ass* Aurelien Jacobs
|
|
||||||
astdec.c Paul B Mahol
|
|
||||||
astenc.c James Almer
|
|
||||||
avi* Michael Niedermayer
|
avi* Michael Niedermayer
|
||||||
avisynth.c AvxSynth Team (avxsynth.testing at gmail dot com)
|
|
||||||
avr.c Paul B Mahol
|
|
||||||
bink.c Peter Ross
|
bink.c Peter Ross
|
||||||
brstm.c Paul B Mahol
|
|
||||||
caf* Peter Ross
|
|
||||||
cdxl.c Paul B Mahol
|
|
||||||
crc.c Michael Niedermayer
|
crc.c Michael Niedermayer
|
||||||
daud.c Reimar Doeffinger
|
daud.c Reimar Doeffinger
|
||||||
dtshddec.c Paul B Mahol
|
|
||||||
dv.c Roman Shaposhnik
|
dv.c Roman Shaposhnik
|
||||||
dxa.c Kostya Shishkov
|
dxa.c Kostya Shishkov
|
||||||
electronicarts.c Peter Ross
|
electronicarts.c Peter Ross
|
||||||
epafdec.c Paul B Mahol
|
|
||||||
ffm* Baptiste Coudurier
|
ffm* Baptiste Coudurier
|
||||||
flac* Justin Ruggles
|
flac* Justin Ruggles
|
||||||
flic.c Mike Melanson
|
flic.c Mike Melanson
|
||||||
@@ -342,25 +264,17 @@ Muxers/Demuxers:
|
|||||||
gxf.c Reimar Doeffinger
|
gxf.c Reimar Doeffinger
|
||||||
gxfenc.c Baptiste Coudurier
|
gxfenc.c Baptiste Coudurier
|
||||||
idcin.c Mike Melanson
|
idcin.c Mike Melanson
|
||||||
idroqdec.c Mike Melanson
|
idroq.c Mike Melanson
|
||||||
iff.c Jaikrishnan Menon
|
iff.c Jaikrishnan Menon
|
||||||
ipmovie.c Mike Melanson
|
ipmovie.c Mike Melanson
|
||||||
img2*.c Michael Niedermayer
|
img2.c Michael Niedermayer
|
||||||
ircam* Paul B Mahol
|
|
||||||
iss.c Stefan Gehrer
|
iss.c Stefan Gehrer
|
||||||
jacosub* Clément Bœsch
|
|
||||||
jvdec.c Peter Ross
|
|
||||||
libmodplug.c Clément Bœsch
|
|
||||||
libnut.c Oded Shimon
|
libnut.c Oded Shimon
|
||||||
lmlm4.c Ivo van Poorten
|
lmlm4.c Ivo van Poorten
|
||||||
lvfdec.c Paul B Mahol
|
|
||||||
lxfdec.c Tomas Härdin
|
|
||||||
matroska.c Aurelien Jacobs
|
matroska.c Aurelien Jacobs
|
||||||
matroskadec.c Aurelien Jacobs
|
matroskadec.c Aurelien Jacobs
|
||||||
matroskaenc.c David Conrad
|
matroskaenc.c David Conrad
|
||||||
metadata* Aurelien Jacobs
|
metadata* Aurelien Jacobs
|
||||||
microdvd* Aurelien Jacobs
|
|
||||||
mgsts.c Paul B Mahol
|
|
||||||
mm.c Peter Ross
|
mm.c Peter Ross
|
||||||
mov.c Michael Niedermayer, Baptiste Coudurier
|
mov.c Michael Niedermayer, Baptiste Coudurier
|
||||||
movenc.c Michael Niedermayer, Baptiste Coudurier
|
movenc.c Michael Niedermayer, Baptiste Coudurier
|
||||||
@@ -371,71 +285,42 @@ Muxers/Demuxers:
|
|||||||
msnwc_tcp.c Ramiro Polla
|
msnwc_tcp.c Ramiro Polla
|
||||||
mtv.c Reynaldo H. Verdejo Pinochet
|
mtv.c Reynaldo H. Verdejo Pinochet
|
||||||
mxf* Baptiste Coudurier
|
mxf* Baptiste Coudurier
|
||||||
mxfdec.c Tomas Härdin
|
|
||||||
nistspheredec.c Paul B Mahol
|
|
||||||
nsvdec.c Francois Revol
|
nsvdec.c Francois Revol
|
||||||
nut.c Michael Niedermayer
|
nut.c Michael Niedermayer
|
||||||
nuv.c Reimar Doeffinger
|
nuv.c Reimar Doeffinger
|
||||||
oggdec.c, oggdec.h David Conrad
|
oggdec.c, oggdec.h David Conrad
|
||||||
oggenc.c Baptiste Coudurier
|
oggenc.c Baptiste Coudurier
|
||||||
oggparse*.c David Conrad
|
oggparse*.c David Conrad
|
||||||
oma.c Maxim Poliakovski
|
|
||||||
paf.c Paul B Mahol
|
|
||||||
psxstr.c Mike Melanson
|
psxstr.c Mike Melanson
|
||||||
pva.c Ivo van Poorten
|
pva.c Ivo van Poorten
|
||||||
pvfdec.c Paul B Mahol
|
|
||||||
r3d.c Baptiste Coudurier
|
r3d.c Baptiste Coudurier
|
||||||
raw.c Michael Niedermayer
|
raw.c Michael Niedermayer
|
||||||
rdt.c Ronald S. Bultje
|
rdt.c Ronald S. Bultje
|
||||||
rl2.c Sascha Sommer
|
rl2.c Sascha Sommer
|
||||||
rmdec.c, rmenc.c Ronald S. Bultje, Kostya Shishkov
|
rmdec.c, rmenc.c Ronald S. Bultje, Kostya Shishkov
|
||||||
rtmp* Kostya Shishkov
|
rtmp* Kostya Shishkov
|
||||||
rtp.c, rtpenc.c Martin Storsjo
|
rtp.c, rtpenc.c Luca Abeni
|
||||||
rtpdec_asf.* Ronald S. Bultje
|
rtp_asf.* Ronald S. Bultje
|
||||||
rtpenc_mpv.*, rtpenc_aac.* Martin Storsjo
|
rtp_mpv.*, rtp_aac.* Luca Abeni
|
||||||
rtsp.c Luca Barbato
|
rtsp.c Luca Barbato
|
||||||
sbgdec.c Nicolas George
|
sdp.c Luca Abeni
|
||||||
sdp.c Martin Storsjo
|
|
||||||
segafilm.c Mike Melanson
|
segafilm.c Mike Melanson
|
||||||
siff.c Kostya Shishkov
|
siff.c Kostya Shishkov
|
||||||
smacker.c Kostya Shishkov
|
smacker.c Kostya Shishkov
|
||||||
smjpeg* Paul B Mahol
|
|
||||||
srtdec.c Aurelien Jacobs
|
|
||||||
swf.c Baptiste Coudurier
|
swf.c Baptiste Coudurier
|
||||||
takdec.c Paul B Mahol
|
|
||||||
tta.c Alex Beregszaszi
|
tta.c Alex Beregszaszi
|
||||||
txd.c Ivo van Poorten
|
txd.c Ivo van Poorten
|
||||||
voc.c Aurelien Jacobs
|
voc.c Aurelien Jacobs
|
||||||
wav.c Michael Niedermayer
|
wav.c Michael Niedermayer
|
||||||
wc3movie.c Mike Melanson
|
wc3movie.c Mike Melanson
|
||||||
webvtt* Matthew J Heaney
|
|
||||||
westwood.c Mike Melanson
|
westwood.c Mike Melanson
|
||||||
wtv.c Peter Ross
|
|
||||||
wv.c Kostya Shishkov
|
wv.c Kostya Shishkov
|
||||||
wvenc.c Paul B Mahol
|
|
||||||
|
|
||||||
Protocols:
|
Protocols:
|
||||||
bluray.c Petri Hintukainen
|
|
||||||
ftp.c Lukasz Marek
|
|
||||||
http.c Ronald S. Bultje
|
http.c Ronald S. Bultje
|
||||||
mms*.c Ronald S. Bultje
|
|
||||||
udp.c Luca Abeni
|
udp.c Luca Abeni
|
||||||
|
|
||||||
|
|
||||||
libswresample
|
|
||||||
=============
|
|
||||||
|
|
||||||
Generic parts:
|
|
||||||
audioconvert.c Michael Niedermayer
|
|
||||||
dither.c Michael Niedermayer
|
|
||||||
rematrix*.c Michael Niedermayer
|
|
||||||
swresample*.c Michael Niedermayer
|
|
||||||
|
|
||||||
Resamplers:
|
|
||||||
resample*.c Michael Niedermayer
|
|
||||||
soxr_resample.c Rob Sykes
|
|
||||||
|
|
||||||
|
|
||||||
Operating systems / CPU architectures
|
Operating systems / CPU architectures
|
||||||
=====================================
|
=====================================
|
||||||
|
|
||||||
@@ -443,6 +328,7 @@ Alpha Mans Rullgard, Falk Hueffner
|
|||||||
ARM Mans Rullgard
|
ARM Mans Rullgard
|
||||||
AVR32 Mans Rullgard
|
AVR32 Mans Rullgard
|
||||||
MIPS Mans Rullgard
|
MIPS Mans Rullgard
|
||||||
|
BeOS Francois Revol
|
||||||
Mac OS X / PowerPC Romain Dolbeau, Guillaume Poirier
|
Mac OS X / PowerPC Romain Dolbeau, Guillaume Poirier
|
||||||
Amiga / PowerPC Colin Ward
|
Amiga / PowerPC Colin Ward
|
||||||
Linux / PowerPC Luca Barbato
|
Linux / PowerPC Luca Barbato
|
||||||
@@ -453,47 +339,20 @@ Sparc Roman Shaposhnik
|
|||||||
x86 Michael Niedermayer
|
x86 Michael Niedermayer
|
||||||
|
|
||||||
|
|
||||||
Releases
|
GnuPG Fingerprints of maintainers and others who have svn write access
|
||||||
========
|
======================================================================
|
||||||
|
|
||||||
2.0 Michael Niedermayer
|
|
||||||
1.2 Michael Niedermayer
|
|
||||||
1.1 Michael Niedermayer
|
|
||||||
|
|
||||||
If you want to maintain an older release, please contact us
|
|
||||||
|
|
||||||
|
|
||||||
GnuPG Fingerprints of maintainers and contributors
|
|
||||||
==================================================
|
|
||||||
|
|
||||||
Anssi Hannula 1A92 FF42 2DD9 8D2E 8AF7 65A9 4278 C520 513D F3CB
|
|
||||||
Anton Khirnov 6D0C 6625 56F8 65D1 E5F5 814B B50A 1241 C067 07AB
|
|
||||||
Ash Hughes 694D 43D2 D180 C7C7 6421 ABD3 A641 D0B7 623D 6029
|
|
||||||
Attila Kinali 11F0 F9A6 A1D2 11F6 C745 D10C 6520 BCDD F2DF E765
|
Attila Kinali 11F0 F9A6 A1D2 11F6 C745 D10C 6520 BCDD F2DF E765
|
||||||
Baptiste Coudurier 8D77 134D 20CC 9220 201F C5DB 0AC9 325C 5C1A BAAA
|
Baptiste Coudurier 8D77 134D 20CC 9220 201F C5DB 0AC9 325C 5C1A BAAA
|
||||||
Ben Littler 3EE3 3723 E560 3214 A8CD 4DEB 2CDB FCE7 768C 8D2C
|
|
||||||
Benoit Fouet B22A 4F4F 43EF 636B BB66 FCDC 0023 AE1E 2985 49C8
|
Benoit Fouet B22A 4F4F 43EF 636B BB66 FCDC 0023 AE1E 2985 49C8
|
||||||
Bœsch Clément 52D0 3A82 D445 F194 DB8B 2B16 87EE 2CB8 F4B8 FCF9
|
|
||||||
Daniel Verkamp 78A6 07ED 782C 653E C628 B8B9 F0EB 8DD8 2F0E 21C7
|
Daniel Verkamp 78A6 07ED 782C 653E C628 B8B9 F0EB 8DD8 2F0E 21C7
|
||||||
Diego Biurrun 8227 1E31 B6D9 4994 7427 E220 9CAE D6CC 4757 FCC5
|
Diego Biurrun 8227 1E31 B6D9 4994 7427 E220 9CAE D6CC 4757 FCC5
|
||||||
FFmpeg release signing key FCF9 86EA 15E6 E293 A564 4F10 B432 2F04 D676 58D8
|
|
||||||
Gwenole Beauchesne 2E63 B3A6 3E44 37E2 017D 2704 53C7 6266 B153 99C4
|
|
||||||
Jaikrishnan Menon 61A1 F09F 01C9 2D45 78E1 C862 25DC 8831 AF70 D368
|
Jaikrishnan Menon 61A1 F09F 01C9 2D45 78E1 C862 25DC 8831 AF70 D368
|
||||||
Jean Delvare 7CA6 9F44 60F1 BDC4 1FD2 C858 A552 6B9B B3CD 4E6A
|
|
||||||
Justin Ruggles 3136 ECC0 C10D 6C04 5F43 CA29 FCBE CD2A 3787 1EBF
|
|
||||||
Loren Merritt ABD9 08F4 C920 3F65 D8BE 35D7 1540 DAA7 060F 56DE
|
Loren Merritt ABD9 08F4 C920 3F65 D8BE 35D7 1540 DAA7 060F 56DE
|
||||||
Lou Logan 7D68 DC73 CBEF EABB 671A B6CF 621C 2E28 82F8 DC3A
|
|
||||||
Luca Barbato 6677 4209 213C 8843 5B67 29E7 E84C 78C2 84E9 0E34
|
|
||||||
Michael Niedermayer 9FF2 128B 147E F673 0BAD F133 611E C787 040B 0FAB
|
Michael Niedermayer 9FF2 128B 147E F673 0BAD F133 611E C787 040B 0FAB
|
||||||
Nicolas George 24CE 01CE 9ACC 5CEB 74D8 8D9D B063 D997 36E5 4C93
|
Panagiotis Issaris 515C E262 10A8 FDCE 5481 7B9C 3AD7 D9A5 071D B3A9
|
||||||
Panagiotis Issaris 6571 13A3 33D9 3726 F728 AA98 F643 B12E ECF3 E029
|
|
||||||
Peter Ross A907 E02F A6E5 0CD2 34CD 20D2 6760 79C5 AC40 DD6B
|
Peter Ross A907 E02F A6E5 0CD2 34CD 20D2 6760 79C5 AC40 DD6B
|
||||||
Reimar Döffinger C61D 16E5 9E2C D10C 8958 38A4 0899 A2B9 06D4 D9C7
|
Reimar Döffinger C61D 16E5 9E2C D10C 8958 38A4 0899 A2B9 06D4 D9C7
|
||||||
Reinhard Tartler 9300 5DC2 7E87 6C37 ED7B CA9A 9808 3544 9453 48A4
|
Reinhard Tartler 9300 5DC2 7E87 6C37 ED7B CA9A 9808 3544 9453 48A4
|
||||||
Reynaldo H. Verdejo Pinochet 6E27 CD34 170C C78E 4D4F 5F40 C18E 077F 3114 452A
|
Reynaldo H. Verdejo Pinochet 6E27 CD34 170C C78E 4D4F 5F40 C18E 077F 3114 452A
|
||||||
Robert Swain EE7A 56EA 4A81 A7B5 2001 A521 67FA 362D A2FC 3E71
|
|
||||||
Sascha Sommer 38A0 F88B 868E 9D3A 97D4 D6A0 E823 706F 1E07 0D3C
|
Sascha Sommer 38A0 F88B 868E 9D3A 97D4 D6A0 E823 706F 1E07 0D3C
|
||||||
Stefano Sabatini 0D0B AD6B 5330 BBAD D3D6 6A0C 719C 2839 FC43 2D5F
|
|
||||||
Stephan Hilb 4F38 0B3A 5F39 B99B F505 E562 8D5C 5554 4E17 8863
|
|
||||||
Tomas Härdin A79D 4E3D F38F 763F 91F5 8B33 A01E 8AE0 41BB 2551
|
|
||||||
Wei Gao 4269 7741 857A 0E60 9EC5 08D2 4744 4EFA 62C1 87B9
|
|
||||||
|
|||||||
360
Makefile
360
Makefile
@@ -1,79 +1,62 @@
|
|||||||
MAIN_MAKEFILE=1
|
|
||||||
include config.mak
|
include config.mak
|
||||||
|
|
||||||
vpath %.c $(SRC_PATH)
|
SRC_DIR = $(SRC_PATH_BARE)
|
||||||
vpath %.cpp $(SRC_PATH)
|
|
||||||
vpath %.h $(SRC_PATH)
|
vpath %.texi $(SRC_PATH_BARE)
|
||||||
vpath %.S $(SRC_PATH)
|
|
||||||
vpath %.asm $(SRC_PATH)
|
|
||||||
vpath %.v $(SRC_PATH)
|
|
||||||
vpath %.texi $(SRC_PATH)
|
|
||||||
vpath %/fate_config.sh.template $(SRC_PATH)
|
|
||||||
|
|
||||||
PROGS-$(CONFIG_FFMPEG) += ffmpeg
|
PROGS-$(CONFIG_FFMPEG) += ffmpeg
|
||||||
PROGS-$(CONFIG_FFPLAY) += ffplay
|
PROGS-$(CONFIG_FFPLAY) += ffplay
|
||||||
PROGS-$(CONFIG_FFPROBE) += ffprobe
|
PROGS-$(CONFIG_FFPROBE) += ffprobe
|
||||||
PROGS-$(CONFIG_FFSERVER) += ffserver
|
PROGS-$(CONFIG_FFSERVER) += ffserver
|
||||||
|
|
||||||
PROGS := $(PROGS-yes:%=%$(PROGSSUF)$(EXESUF))
|
PROGS := $(addsuffix $(EXESUF), $(PROGS-yes))
|
||||||
INSTPROGS = $(PROGS-yes:%=%$(PROGSSUF)$(EXESUF))
|
PROGS_G = $(addsuffix _g$(EXESUF), $(PROGS-yes))
|
||||||
|
OBJS = $(addsuffix .o, $(PROGS-yes)) cmdutils.o
|
||||||
OBJS = cmdutils.o $(EXEOBJS)
|
MANPAGES = $(addprefix doc/, $(addsuffix .1, $(PROGS-yes)))
|
||||||
OBJS-ffmpeg = ffmpeg_opt.o ffmpeg_filter.o
|
TOOLS = $(addprefix tools/, $(addsuffix $(EXESUF), cws2fws pktdumper probetest qt-faststart trasher))
|
||||||
TESTTOOLS = audiogen videogen rotozoom tiny_psnr tiny_ssim base64
|
HOSTPROGS = $(addprefix tests/, audiogen videogen rotozoom tiny_psnr)
|
||||||
HOSTPROGS := $(TESTTOOLS:%=tests/%) doc/print_options
|
|
||||||
TOOLS = qt-faststart trasher
|
|
||||||
TOOLS-$(CONFIG_ZLIB) += cws2fws
|
|
||||||
|
|
||||||
BASENAMES = ffmpeg ffplay ffprobe ffserver
|
BASENAMES = ffmpeg ffplay ffprobe ffserver
|
||||||
ALLPROGS = $(BASENAMES:%=%$(PROGSSUF)$(EXESUF))
|
ALLPROGS = $(addsuffix $(EXESUF), $(BASENAMES))
|
||||||
ALLPROGS_G = $(BASENAMES:%=%$(PROGSSUF)_g$(EXESUF))
|
ALLPROGS_G = $(addsuffix _g$(EXESUF), $(BASENAMES))
|
||||||
|
ALLMANPAGES = $(addsuffix .1, $(BASENAMES))
|
||||||
|
|
||||||
FFLIBS-$(CONFIG_AVDEVICE) += avdevice
|
FFLIBS-$(CONFIG_AVDEVICE) += avdevice
|
||||||
FFLIBS-$(CONFIG_AVFILTER) += avfilter
|
FFLIBS-$(CONFIG_AVFILTER) += avfilter
|
||||||
FFLIBS-$(CONFIG_AVFORMAT) += avformat
|
FFLIBS-$(CONFIG_AVFORMAT) += avformat
|
||||||
FFLIBS-$(CONFIG_AVRESAMPLE) += avresample
|
|
||||||
FFLIBS-$(CONFIG_AVCODEC) += avcodec
|
FFLIBS-$(CONFIG_AVCODEC) += avcodec
|
||||||
FFLIBS-$(CONFIG_POSTPROC) += postproc
|
FFLIBS-$(CONFIG_POSTPROC) += postproc
|
||||||
FFLIBS-$(CONFIG_SWRESAMPLE)+= swresample
|
|
||||||
FFLIBS-$(CONFIG_SWSCALE) += swscale
|
FFLIBS-$(CONFIG_SWSCALE) += swscale
|
||||||
|
|
||||||
FFLIBS := avutil
|
FFLIBS := avutil
|
||||||
|
|
||||||
DATA_FILES := $(wildcard $(SRC_PATH)/presets/*.ffpreset) $(SRC_PATH)/doc/ffprobe.xsd
|
DATA_FILES := $(wildcard $(SRC_DIR)/ffpresets/*.ffpreset)
|
||||||
EXAMPLES_FILES := $(wildcard $(SRC_PATH)/doc/examples/*.c) $(SRC_PATH)/doc/examples/Makefile $(SRC_PATH)/doc/examples/README
|
|
||||||
|
|
||||||
SKIPHEADERS = cmdutils_common_opts.h compat/w32pthreads.h
|
SKIPHEADERS = cmdutils_common_opts.h
|
||||||
|
|
||||||
include $(SRC_PATH)/common.mak
|
include common.mak
|
||||||
|
|
||||||
|
FF_LDFLAGS := $(FFLDFLAGS)
|
||||||
FF_EXTRALIBS := $(FFEXTRALIBS)
|
FF_EXTRALIBS := $(FFEXTRALIBS)
|
||||||
FF_DEP_LIBS := $(DEP_LIBS)
|
FF_DEP_LIBS := $(DEP_LIBS)
|
||||||
|
|
||||||
all: $(PROGS)
|
ALL_TARGETS-$(CONFIG_DOC) += documentation
|
||||||
|
|
||||||
|
ifdef PROGS
|
||||||
|
INSTALL_TARGETS-yes += install-progs install-data
|
||||||
|
INSTALL_TARGETS-$(CONFIG_DOC) += install-man
|
||||||
|
endif
|
||||||
|
INSTALL_PROGS_TARGETS-$(CONFIG_SHARED) = install-libs
|
||||||
|
|
||||||
|
all: $(FF_DEP_LIBS) $(PROGS) $(ALL_TARGETS-yes)
|
||||||
|
|
||||||
$(PROGS): %$(EXESUF): %_g$(EXESUF)
|
$(PROGS): %$(EXESUF): %_g$(EXESUF)
|
||||||
$(CP) $< $@
|
$(CP) $< $@
|
||||||
$(STRIP) $@
|
$(STRIP) $@
|
||||||
|
|
||||||
$(TOOLS): %$(EXESUF): %.o $(EXEOBJS)
|
SUBDIR_VARS := OBJS FFLIBS CLEANFILES DIRS TESTPROGS EXAMPLES SKIPHEADERS \
|
||||||
$(LD) $(LDFLAGS) $(LD_O) $^ $(ELIBS)
|
ALTIVEC-OBJS MMX-OBJS NEON-OBJS X86-OBJS YASM-OBJS-FFT YASM-OBJS \
|
||||||
|
HOSTPROGS BUILT_HEADERS TESTOBJS ARCH_HEADERS
|
||||||
tools/cws2fws$(EXESUF): ELIBS = $(ZLIB)
|
|
||||||
|
|
||||||
config.h: .config
|
|
||||||
.config: $(wildcard $(FFLIBS:%=$(SRC_PATH)/lib%/all*.c))
|
|
||||||
@-tput bold 2>/dev/null
|
|
||||||
@-printf '\nWARNING: $(?F) newer than config.h, rerun configure\n\n'
|
|
||||||
@-tput sgr0 2>/dev/null
|
|
||||||
|
|
||||||
SUBDIR_VARS := CLEANFILES EXAMPLES FFLIBS HOSTPROGS TESTPROGS TOOLS \
|
|
||||||
HEADERS ARCH_HEADERS BUILT_HEADERS SKIPHEADERS \
|
|
||||||
ARMV5TE-OBJS ARMV6-OBJS VFP-OBJS NEON-OBJS \
|
|
||||||
ALTIVEC-OBJS VIS-OBJS \
|
|
||||||
MMX-OBJS YASM-OBJS \
|
|
||||||
MIPSFPU-OBJS MIPSDSPR2-OBJS MIPSDSPR1-OBJS MIPS32R2-OBJS \
|
|
||||||
OBJS HOSTOBJS TESTOBJS
|
|
||||||
|
|
||||||
define RESET
|
define RESET
|
||||||
$(1) :=
|
$(1) :=
|
||||||
@@ -83,35 +66,30 @@ endef
|
|||||||
define DOSUBDIR
|
define DOSUBDIR
|
||||||
$(foreach V,$(SUBDIR_VARS),$(eval $(call RESET,$(V))))
|
$(foreach V,$(SUBDIR_VARS),$(eval $(call RESET,$(V))))
|
||||||
SUBDIR := $(1)/
|
SUBDIR := $(1)/
|
||||||
include $(SRC_PATH)/$(1)/Makefile
|
include $(1)/Makefile
|
||||||
-include $(SRC_PATH)/$(1)/$(ARCH)/Makefile
|
|
||||||
include $(SRC_PATH)/library.mak
|
|
||||||
endef
|
endef
|
||||||
|
|
||||||
$(foreach D,$(FFLIBS),$(eval $(call DOSUBDIR,lib$(D))))
|
$(foreach D,$(FFLIBS),$(eval $(call DOSUBDIR,lib$(D))))
|
||||||
|
|
||||||
define DOPROG
|
ffplay_g$(EXESUF): FF_EXTRALIBS += $(SDL_LIBS)
|
||||||
OBJS-$(1) += $(1).o cmdutils.o $(EXEOBJS)
|
ffserver_g$(EXESUF): FF_LDFLAGS += $(FFSERVERLDFLAGS)
|
||||||
$(1)$(PROGSSUF)_g$(EXESUF): $$(OBJS-$(1))
|
|
||||||
$$(OBJS-$(1)): CFLAGS += $(CFLAGS-$(1))
|
|
||||||
$(1)$(PROGSSUF)_g$(EXESUF): LDFLAGS += $(LDFLAGS-$(1))
|
|
||||||
$(1)$(PROGSSUF)_g$(EXESUF): FF_EXTRALIBS += $(LIBS-$(1))
|
|
||||||
-include $$(OBJS-$(1):.o=.d)
|
|
||||||
endef
|
|
||||||
|
|
||||||
$(foreach P,$(PROGS-yes),$(eval $(call DOPROG,$(P))))
|
%_g$(EXESUF): %.o cmdutils.o $(FF_DEP_LIBS)
|
||||||
|
$(LD) $(FF_LDFLAGS) -o $@ $< cmdutils.o $(FF_EXTRALIBS)
|
||||||
|
|
||||||
%$(PROGSSUF)_g$(EXESUF): %.o $(FF_DEP_LIBS)
|
tools/%$(EXESUF): tools/%.o
|
||||||
$(LD) $(LDFLAGS) $(LD_O) $(OBJS-$*) $(FF_EXTRALIBS)
|
$(LD) $(FF_LDFLAGS) -o $@ $< $(FF_EXTRALIBS)
|
||||||
|
|
||||||
OBJDIRS += tools
|
tools/%.o: tools/%.c
|
||||||
|
$(CC) $(CPPFLAGS) $(CFLAGS) $(CC_O) $<
|
||||||
|
|
||||||
-include $(wildcard tools/*.d)
|
ffplay.o ffplay.d: CFLAGS += $(SDL_CFLAGS)
|
||||||
|
|
||||||
VERSION_SH = $(SRC_PATH)/version.sh
|
VERSION_SH = $(SRC_PATH_BARE)/version.sh
|
||||||
GIT_LOG = $(SRC_PATH)/.git/logs/HEAD
|
GIT_LOG = $(SRC_PATH_BARE)/.git/logs/HEAD
|
||||||
|
SVN_ENTRIES = $(SRC_PATH_BARE)/.svn/entries
|
||||||
|
|
||||||
.version: $(wildcard $(GIT_LOG)) $(VERSION_SH) config.mak
|
.version: $(wildcard $(GIT_LOG) $(SVN_ENTRIES)) $(VERSION_SH) config.mak
|
||||||
.version: M=@
|
.version: M=@
|
||||||
|
|
||||||
version.h .version:
|
version.h .version:
|
||||||
@@ -121,27 +99,39 @@ version.h .version:
|
|||||||
# force version.sh to run whenever version might have changed
|
# force version.sh to run whenever version might have changed
|
||||||
-include .version
|
-include .version
|
||||||
|
|
||||||
ifdef PROGS
|
alltools: $(TOOLS)
|
||||||
install: install-progs install-data
|
|
||||||
endif
|
|
||||||
|
|
||||||
install: install-libs install-headers
|
documentation: $(addprefix doc/, developer.html faq.html ffmpeg-doc.html \
|
||||||
|
ffplay-doc.html ffprobe-doc.html ffserver-doc.html \
|
||||||
|
general.html libavfilter.html $(ALLMANPAGES))
|
||||||
|
|
||||||
install-libs: install-libs-yes
|
doc/%.html: TAG = HTML
|
||||||
|
doc/%.html: doc/%.texi
|
||||||
|
$(M)cd doc && texi2html -monolithic -number $(<:doc/%=%)
|
||||||
|
|
||||||
install-progs-yes:
|
doc/%.pod: TAG = POD
|
||||||
install-progs-$(CONFIG_SHARED): install-libs
|
doc/%.pod: doc/%-doc.texi
|
||||||
|
$(M)doc/texi2pod.pl $< $@
|
||||||
|
|
||||||
install-progs: install-progs-yes $(PROGS)
|
doc/%.1: TAG = MAN
|
||||||
|
doc/%.1: doc/%.pod
|
||||||
|
$(M)pod2man --section=1 --center=" " --release=" " $< > $@
|
||||||
|
|
||||||
|
install: $(INSTALL_TARGETS-yes)
|
||||||
|
|
||||||
|
install-progs: $(PROGS) $(INSTALL_PROGS_TARGETS-yes)
|
||||||
$(Q)mkdir -p "$(BINDIR)"
|
$(Q)mkdir -p "$(BINDIR)"
|
||||||
$(INSTALL) -c -m 755 $(INSTPROGS) "$(BINDIR)"
|
$(INSTALL) -c -m 755 $(PROGS) "$(BINDIR)"
|
||||||
|
|
||||||
install-data: $(DATA_FILES) $(EXAMPLES_FILES)
|
install-data: $(DATA_FILES)
|
||||||
$(Q)mkdir -p "$(DATADIR)/examples"
|
$(Q)mkdir -p "$(DATADIR)"
|
||||||
$(INSTALL) -m 644 $(DATA_FILES) "$(DATADIR)"
|
$(INSTALL) -m 644 $(DATA_FILES) "$(DATADIR)"
|
||||||
$(INSTALL) -m 644 $(EXAMPLES_FILES) "$(DATADIR)/examples"
|
|
||||||
|
|
||||||
uninstall: uninstall-libs uninstall-headers uninstall-progs uninstall-data
|
install-man: $(MANPAGES)
|
||||||
|
$(Q)mkdir -p "$(MANDIR)/man1"
|
||||||
|
$(INSTALL) -m 644 $(MANPAGES) "$(MANDIR)/man1"
|
||||||
|
|
||||||
|
uninstall: uninstall-progs uninstall-data uninstall-man
|
||||||
|
|
||||||
uninstall-progs:
|
uninstall-progs:
|
||||||
$(RM) $(addprefix "$(BINDIR)/", $(ALLPROGS))
|
$(RM) $(addprefix "$(BINDIR)/", $(ALLPROGS))
|
||||||
@@ -149,35 +139,215 @@ uninstall-progs:
|
|||||||
uninstall-data:
|
uninstall-data:
|
||||||
$(RM) -r "$(DATADIR)"
|
$(RM) -r "$(DATADIR)"
|
||||||
|
|
||||||
clean::
|
uninstall-man:
|
||||||
|
$(RM) $(addprefix "$(MANDIR)/man1/",$(ALLMANPAGES))
|
||||||
|
|
||||||
|
testclean:
|
||||||
|
$(RM) -r tests/vsynth1 tests/vsynth2 tests/data
|
||||||
|
$(RM) $(addprefix tests/,$(CLEANSUFFIXES))
|
||||||
|
$(RM) tests/seek_test$(EXESUF) tests/seek_test.o
|
||||||
|
$(RM) $(addprefix tests/,$(addsuffix $(HOSTEXESUF),audiogen videogen rotozoom tiny_psnr))
|
||||||
|
|
||||||
|
clean:: testclean
|
||||||
$(RM) $(ALLPROGS) $(ALLPROGS_G)
|
$(RM) $(ALLPROGS) $(ALLPROGS_G)
|
||||||
$(RM) $(CLEANSUFFIXES)
|
$(RM) $(CLEANSUFFIXES)
|
||||||
$(RM) $(CLEANSUFFIXES:%=tools/%)
|
$(RM) doc/*.html doc/*.pod doc/*.1
|
||||||
$(RM) -r coverage-html
|
$(RM) $(TOOLS)
|
||||||
$(RM) -rf coverage.info lcov
|
|
||||||
|
|
||||||
distclean::
|
distclean::
|
||||||
$(RM) $(DISTCLEANSUFFIXES)
|
$(RM) $(DISTCLEANSUFFIXES)
|
||||||
$(RM) config.* .config libavutil/avconfig.h .version version.h libavcodec/codec_names.h
|
$(RM) version.h config.* libavutil/avconfig.h
|
||||||
|
|
||||||
config:
|
config:
|
||||||
$(SRC_PATH)/configure $(value FFMPEG_CONFIGURATION)
|
$(SRC_PATH)/configure $(value FFMPEG_CONFIGURATION)
|
||||||
|
|
||||||
check: all alltools examples testprogs fate
|
# regression tests
|
||||||
|
|
||||||
include $(SRC_PATH)/doc/Makefile
|
check: test checkheaders
|
||||||
include $(SRC_PATH)/tests/Makefile
|
|
||||||
|
|
||||||
$(sort $(OBJDIRS)):
|
fulltest test: codectest lavftest seektest
|
||||||
$(Q)mkdir -p $@
|
|
||||||
|
|
||||||
# Dummy rule to stop make trying to rebuild removed or renamed headers
|
FFSERVER_REFFILE = $(SRC_PATH)/tests/ffserver.regression.ref
|
||||||
%.h:
|
SEEK_REFFILE = $(SRC_PATH)/tests/seek.regression.ref
|
||||||
@:
|
|
||||||
|
|
||||||
# Disable suffix rules. Most of the builtin rules are suffix rules,
|
ENCDEC = $(and $(CONFIG_$(1)_ENCODER),$(CONFIG_$(1)_DECODER))
|
||||||
# so this saves some time on slow systems.
|
MUXDEM = $(and $(CONFIG_$(1)_MUXER),$(CONFIG_$(or $(2),$(1))_DEMUXER))
|
||||||
.SUFFIXES:
|
|
||||||
|
|
||||||
.PHONY: all all-yes alltools check *clean config install*
|
VCODEC_TESTS =
|
||||||
.PHONY: testprogs uninstall*
|
VCODEC_TESTS-$(call ENCDEC,ASV1) += asv1
|
||||||
|
VCODEC_TESTS-$(call ENCDEC,ASV2) += asv2
|
||||||
|
VCODEC_TESTS-$(call ENCDEC,DNXHD) += dnxhd_1080i dnxhd_720p dnxhd_720p_rd
|
||||||
|
VCODEC_TESTS-$(call ENCDEC,DVVIDEO) += dv dv50
|
||||||
|
VCODEC_TESTS-$(call ENCDEC,FFV1) += ffv1
|
||||||
|
VCODEC_TESTS-$(call ENCDEC,FLASHSV) += flashsv
|
||||||
|
VCODEC_TESTS-$(call ENCDEC,FLV) += flv
|
||||||
|
VCODEC_TESTS-$(call ENCDEC,H261) += h261
|
||||||
|
VCODEC_TESTS-$(call ENCDEC,H263) += h263 h263p
|
||||||
|
VCODEC_TESTS-$(call ENCDEC,HUFFYUV) += huffyuv
|
||||||
|
VCODEC_TESTS-$(call ENCDEC,JPEGLS) += jpegls
|
||||||
|
VCODEC_TESTS-$(call ENCDEC,MJPEG) += mjpeg ljpeg
|
||||||
|
VCODEC_TESTS-$(call ENCDEC,MPEG1VIDEO) += mpeg mpeg1b
|
||||||
|
VCODEC_TESTS-$(call ENCDEC,MPEG2VIDEO) += mpeg2 mpeg2thread
|
||||||
|
VCODEC_TESTS-$(call ENCDEC,MPEG4) += mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc
|
||||||
|
VCODEC_TESTS-$(call ENCDEC,MSMPEG4V1) += msmpeg4
|
||||||
|
VCODEC_TESTS-$(call ENCDEC,MSMPEG4V2) += msmpeg4v2
|
||||||
|
VCODEC_TESTS-$(call ENCDEC,ROQ) += roq
|
||||||
|
VCODEC_TESTS-$(call ENCDEC,RV10) += rv10
|
||||||
|
VCODEC_TESTS-$(call ENCDEC,RV20) += rv20
|
||||||
|
VCODEC_TESTS-$(call ENCDEC,SNOW) += snow snowll
|
||||||
|
VCODEC_TESTS-$(call ENCDEC,SVQ1) += svq1
|
||||||
|
VCODEC_TESTS-$(call ENCDEC,WMV1) += wmv1
|
||||||
|
VCODEC_TESTS-$(call ENCDEC,WMV2) += wmv2
|
||||||
|
|
||||||
|
ACODEC_TESTS =
|
||||||
|
ACODEC_TESTS-$(call ENCDEC,AC3) += ac3
|
||||||
|
ACODEC_TESTS-$(call ENCDEC,ADPCM_G726) += g726
|
||||||
|
ACODEC_TESTS-$(call ENCDEC,ADPCM_IMA_QT) += adpcm_ima_qt
|
||||||
|
ACODEC_TESTS-$(call ENCDEC,ADPCM_IMA_WAV) += adpcm_ima_wav
|
||||||
|
ACODEC_TESTS-$(call ENCDEC,ADPCM_MS) += adpcm_ms
|
||||||
|
ACODEC_TESTS-$(call ENCDEC,ADPCM_SWF) += adpcm_swf
|
||||||
|
ACODEC_TESTS-$(call ENCDEC,ADPCM_YAMAHA) += adpcm_yam
|
||||||
|
ACODEC_TESTS-$(call ENCDEC,ALAC) += alac
|
||||||
|
ACODEC_TESTS-$(call ENCDEC,FLAC) += flac
|
||||||
|
ACODEC_TESTS-$(call ENCDEC,MP2) += mp2
|
||||||
|
ACODEC_TESTS-$(call ENCDEC,PCM_S16LE) += pcm # fixme
|
||||||
|
ACODEC_TESTS-$(call ENCDEC,WMAV1) += wmav1
|
||||||
|
ACODEC_TESTS-$(call ENCDEC,WMAV1) += wmav2
|
||||||
|
|
||||||
|
LAVF_TESTS =
|
||||||
|
LAVF_TESTS-$(call MUXDEM,AIFF) += aiff
|
||||||
|
LAVF_TESTS-$(call MUXDEM,PCM_ALAW) += alaw
|
||||||
|
LAVF_TESTS-$(call MUXDEM,ASF) += asf
|
||||||
|
LAVF_TESTS-$(call MUXDEM,AU) += au
|
||||||
|
LAVF_TESTS-$(call MUXDEM,AVI) += avi
|
||||||
|
LAVF_TESTS-$(call ENCDEC,BMP) += bmp
|
||||||
|
LAVF_TESTS-$(call MUXDEM,DV) += dv_fmt
|
||||||
|
LAVF_TESTS-$(call MUXDEM,FFM) += ffm
|
||||||
|
LAVF_TESTS-$(call MUXDEM,FLV) += flv_fmt
|
||||||
|
LAVF_TESTS-$(call ENCDEC,GIF) += gif
|
||||||
|
LAVF_TESTS-$(call MUXDEM,GXF) += gxf
|
||||||
|
LAVF_TESTS-$(call ENCDEC,MJPEG) += jpg
|
||||||
|
LAVF_TESTS-$(call MUXDEM,MATROSKA) += mkv
|
||||||
|
LAVF_TESTS-$(call MUXDEM,MMF) += mmf
|
||||||
|
LAVF_TESTS-$(call MUXDEM,MOV) += mov
|
||||||
|
LAVF_TESTS-$(call MUXDEM,MPEG1SYSTEM,MPEGPS) += mpg
|
||||||
|
LAVF_TESTS-$(call MUXDEM,PCM_MULAW) += mulaw
|
||||||
|
LAVF_TESTS-$(call MUXDEM,MXF) += mxf
|
||||||
|
LAVF_TESTS-$(call MUXDEM,NUT) += nut
|
||||||
|
LAVF_TESTS-$(call MUXDEM,OGG) += ogg
|
||||||
|
LAVF_TESTS-$(call ENCDEC,PBM) += pbmpipe
|
||||||
|
LAVF_TESTS-$(call ENCDEC,PCX) += pcx
|
||||||
|
LAVF_TESTS-$(call ENCDEC,PGM) += pgm pgmpipe
|
||||||
|
LAVF_TESTS-$(call MUXDEM,RAWVIDEO) += pixfmt
|
||||||
|
LAVF_TESTS-$(call ENCDEC,PPM) += ppm ppmpipe
|
||||||
|
LAVF_TESTS-$(call MUXDEM,RM) += rm
|
||||||
|
LAVF_TESTS-$(call ENCDEC,SGI) += sgi
|
||||||
|
LAVF_TESTS-$(call MUXDEM,SWF) += swf
|
||||||
|
LAVF_TESTS-$(call ENCDEC,TARGA) += tga
|
||||||
|
LAVF_TESTS-$(call ENCDEC,TIFF) += tiff
|
||||||
|
LAVF_TESTS-$(call MUXDEM,MPEGTS) += ts
|
||||||
|
LAVF_TESTS-$(call MUXDEM,VOC) += voc
|
||||||
|
LAVF_TESTS-$(call MUXDEM,WAV) += wav
|
||||||
|
LAVF_TESTS-$(call MUXDEM,YUV4MPEGPIPE) += yuv4mpeg
|
||||||
|
|
||||||
|
LAVFI_TESTS = \
|
||||||
|
crop \
|
||||||
|
crop_scale \
|
||||||
|
crop_scale_vflip \
|
||||||
|
crop_vflip \
|
||||||
|
null \
|
||||||
|
scale200 \
|
||||||
|
scale500 \
|
||||||
|
vflip \
|
||||||
|
vflip_crop \
|
||||||
|
vflip_vflip \
|
||||||
|
|
||||||
|
ACODEC_TESTS := $(addprefix regtest-, $(ACODEC_TESTS) $(ACODEC_TESTS-yes))
|
||||||
|
VCODEC_TESTS := $(addprefix regtest-, $(VCODEC_TESTS) $(VCODEC_TESTS-yes))
|
||||||
|
LAVF_TESTS := $(addprefix regtest-, $(LAVF_TESTS) $(LAVF_TESTS-yes))
|
||||||
|
LAVFI_TESTS := $(addprefix regtest-, $(LAVFI_TESTS) $(LAVFI_TESTS-yes))
|
||||||
|
|
||||||
|
CODEC_TESTS = $(VCODEC_TESTS) $(ACODEC_TESTS)
|
||||||
|
|
||||||
|
codectest: $(CODEC_TESTS)
|
||||||
|
lavftest: $(LAVF_TESTS)
|
||||||
|
lavfitest: $(LAVFI_TESTS)
|
||||||
|
|
||||||
|
$(ACODEC_TESTS): regtest-aref
|
||||||
|
$(VCODEC_TESTS): regtest-vref
|
||||||
|
$(LAVF_TESTS) $(LAVFI_TESTS): regtest-ref
|
||||||
|
|
||||||
|
REFFILE = $(SRC_PATH)/tests/ref/$(1)/$(2:regtest-%=%)
|
||||||
|
RESFILE = tests/data/$(2:regtest-%=%).$(1).regression
|
||||||
|
|
||||||
|
define CODECTEST_CMD
|
||||||
|
$(SRC_PATH)/tests/codec-regression.sh $@ vsynth1 tests/vsynth1 "$(TARGET_EXEC)" "$(TARGET_PATH)"
|
||||||
|
$(SRC_PATH)/tests/codec-regression.sh $@ vsynth2 tests/vsynth2 "$(TARGET_EXEC)" "$(TARGET_PATH)"
|
||||||
|
endef
|
||||||
|
|
||||||
|
regtest-ref: regtest-aref regtest-vref
|
||||||
|
|
||||||
|
regtest-vref: ffmpeg$(EXESUF) tests/vsynth1/00.pgm tests/vsynth2/00.pgm
|
||||||
|
$(CODECTEST_CMD)
|
||||||
|
|
||||||
|
regtest-aref: ffmpeg$(EXESUF) tests/data/asynth1.sw
|
||||||
|
@$(SRC_PATH)/tests/codec-regression.sh $@ acodec tests/acodec "$(TARGET_EXEC)" "$(TARGET_PATH)"
|
||||||
|
|
||||||
|
$(VCODEC_TESTS): tests/tiny_psnr$(HOSTEXESUF)
|
||||||
|
@echo "TEST VCODEC $(@:regtest-%=%)"
|
||||||
|
@$(CODECTEST_CMD)
|
||||||
|
@diff -u -w $(call REFFILE,vsynth1,$@) $(call RESFILE,vsynth1,$@)
|
||||||
|
@diff -u -w $(call REFFILE,vsynth2,$@) $(call RESFILE,vsynth2,$@)
|
||||||
|
|
||||||
|
$(ACODEC_TESTS): tests/tiny_psnr$(HOSTEXESUF)
|
||||||
|
@echo "TEST ACODEC $(@:regtest-%=%)"
|
||||||
|
@$(SRC_PATH)/tests/codec-regression.sh $@ acodec tests/acodec "$(TARGET_EXEC)" "$(TARGET_PATH)"
|
||||||
|
@diff -u -w $(call REFFILE,acodec,$@) $(call RESFILE,acodec,$@)
|
||||||
|
|
||||||
|
$(LAVF_TESTS):
|
||||||
|
@echo "TEST LAVF $(@:regtest-%=%)"
|
||||||
|
@$(SRC_PATH)/tests/lavf-regression.sh $@ lavf tests/vsynth1 "$(TARGET_EXEC)" "$(TARGET_PATH)"
|
||||||
|
@diff -u -w $(call REFFILE,lavf,$@) $(call RESFILE,lavf,$@)
|
||||||
|
|
||||||
|
$(LAVFI_TESTS):
|
||||||
|
@echo "TEST LAVFI $(@:regtest-%=%)"
|
||||||
|
@$(SRC_PATH)/tests/lavfi-regression.sh $@ lavfi tests/vsynth1 "$(TARGET_EXEC)" "$(TARGET_PATH)"
|
||||||
|
@diff -u -w $(call REFFILE,lavfi,$@) $(call RESFILE,lavfi,$@)
|
||||||
|
|
||||||
|
seektest: codectest lavftest tests/seek_test$(EXESUF)
|
||||||
|
$(SRC_PATH)/tests/seek-regression.sh $(SRC_PATH) "$(TARGET_EXEC)" "$(TARGET_PATH)"
|
||||||
|
|
||||||
|
ffservertest: ffserver$(EXESUF) tests/vsynth1/00.pgm tests/data/asynth1.sw
|
||||||
|
@echo
|
||||||
|
@echo "Unfortunately ffserver is broken and therefore its regression"
|
||||||
|
@echo "test fails randomly. Treat the results accordingly."
|
||||||
|
@echo
|
||||||
|
$(SRC_PATH)/tests/ffserver-regression.sh $(FFSERVER_REFFILE) $(SRC_PATH)/tests/ffserver.conf
|
||||||
|
|
||||||
|
tests/vsynth1/00.pgm: tests/videogen$(HOSTEXESUF)
|
||||||
|
mkdir -p tests/vsynth1
|
||||||
|
$(BUILD_ROOT)/$< 'tests/vsynth1/'
|
||||||
|
|
||||||
|
tests/vsynth2/00.pgm: tests/rotozoom$(HOSTEXESUF)
|
||||||
|
mkdir -p tests/vsynth2
|
||||||
|
$(BUILD_ROOT)/$< 'tests/vsynth2/' $(SRC_PATH)/tests/lena.pnm
|
||||||
|
|
||||||
|
tests/data/asynth1.sw: tests/audiogen$(HOSTEXESUF)
|
||||||
|
mkdir -p tests/data
|
||||||
|
$(BUILD_ROOT)/$< $@
|
||||||
|
|
||||||
|
tests/seek_test$(EXESUF): tests/seek_test.o $(FF_DEP_LIBS)
|
||||||
|
$(LD) $(FF_LDFLAGS) -o $@ $< $(FF_EXTRALIBS)
|
||||||
|
|
||||||
|
ifdef SAMPLES
|
||||||
|
include $(SRC_PATH_BARE)/tests/fate.mak
|
||||||
|
fate: $(FATE_TESTS)
|
||||||
|
$(FATE_TESTS): ffmpeg$(EXESUF)
|
||||||
|
@echo "TEST FATE $(@:fate-%=%)"
|
||||||
|
@$(SRC_PATH)/tests/fate-run.sh $@ "$(SAMPLES)" "$(TARGET_EXEC)" "$(TARGET_PATH)" '$(CMD)'
|
||||||
|
else
|
||||||
|
fate:
|
||||||
|
@echo "SAMPLES not specified, cannot run FATE"
|
||||||
|
endif
|
||||||
|
|
||||||
|
.PHONY: documentation *test regtest-* zlib-error alltools check config
|
||||||
|
|||||||
8
README
8
README
@@ -4,15 +4,9 @@ FFmpeg README
|
|||||||
1) Documentation
|
1) Documentation
|
||||||
----------------
|
----------------
|
||||||
|
|
||||||
* Read the documentation in the doc/ directory in git.
|
* Read the documentation in the doc/ directory.
|
||||||
You can also view it online at http://ffmpeg.org/documentation.html
|
|
||||||
|
|
||||||
2) Licensing
|
2) Licensing
|
||||||
------------
|
------------
|
||||||
|
|
||||||
* See the LICENSE file.
|
* See the LICENSE file.
|
||||||
|
|
||||||
3) Build and Install
|
|
||||||
--------------------
|
|
||||||
|
|
||||||
* See the INSTALL file.
|
|
||||||
|
|||||||
213
RELEASE
213
RELEASE
@@ -1 +1,212 @@
|
|||||||
2.0
|
Release Notes
|
||||||
|
=============
|
||||||
|
|
||||||
|
* 0.6 "Works with HTML5" June, 2010
|
||||||
|
|
||||||
|
General notes
|
||||||
|
-------------
|
||||||
|
|
||||||
|
This release focuses on improvements for the new multimedia elements in HTML5.
|
||||||
|
The H.264 and Theora decoders are now significantly faster, the Vorbis decoder
|
||||||
|
has seen important updates and this release supports Google's newly released
|
||||||
|
libvpx library for the VP8 codec and WebM container.
|
||||||
|
|
||||||
|
Other important changes are additions of decoders including, but not limited to,
|
||||||
|
Intel Indeo 5, WMA Pro, WMA Voice and HE-AAC.
|
||||||
|
|
||||||
|
See the Changelog file for a list of significant changes.
|
||||||
|
|
||||||
|
Please note that our policy on bug reports has not changed. We still only accept
|
||||||
|
bug reports against HEAD of the FFmpeg trunk repository. If you are experiencing
|
||||||
|
any issues with any formally released version of FFmpeg, please try a current
|
||||||
|
version of the development code to check if the issue still exists. If it does,
|
||||||
|
make your report against the development code following the usual bug reporting
|
||||||
|
guidelines.
|
||||||
|
|
||||||
|
|
||||||
|
API and other notable Changes
|
||||||
|
-----------------------------
|
||||||
|
|
||||||
|
Please see the file doc/APIchanges for programmer-centric information.
|
||||||
|
|
||||||
|
Notable changes:
|
||||||
|
- deprecated vhook subsystem removed
|
||||||
|
- deprecated old scaler removed
|
||||||
|
- nonfree libamr support for AMR-NB/WB decoding/encoding removed
|
||||||
|
- RTMP support in libavformat
|
||||||
|
- -formats option split into -formats, -codecs, -bsfs, and -protocols
|
||||||
|
- ffprobe tool
|
||||||
|
- RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
|
||||||
|
- CODEC_CAP_EXPERIMENTAL added
|
||||||
|
|
||||||
|
|
||||||
|
Added Codecs:
|
||||||
|
-------------
|
||||||
|
|
||||||
|
- VQF demuxer
|
||||||
|
- PCX encoder
|
||||||
|
- CorePNG decoding support
|
||||||
|
- 8088flex TMV demuxer and decoder
|
||||||
|
- enable symbol versioning by default for linkers that support it
|
||||||
|
- V210 decoder and encoder
|
||||||
|
- QCP demuxer
|
||||||
|
- SoX native format muxer and demuxer
|
||||||
|
- AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
|
||||||
|
- DPX image decoder
|
||||||
|
- Electronic Arts Madcow decoder
|
||||||
|
- DivX (XSUB) subtitle encoder
|
||||||
|
- experimental AAC encoder
|
||||||
|
- Wave64 demuxer
|
||||||
|
- IEC-61937 compatible Muxer
|
||||||
|
- TwinVQ decoder
|
||||||
|
- Bluray (PGS) subtitle decoder
|
||||||
|
- LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
|
||||||
|
- WMA Pro decoder
|
||||||
|
- Core Audio Format demuxer
|
||||||
|
- Atrac1 decoder
|
||||||
|
- MD STUDIO audio demuxer
|
||||||
|
- RF64 support in WAV demuxer
|
||||||
|
- MPEG-4 Audio Lossless Coding (ALS) decoder
|
||||||
|
- IV8 demuxer
|
||||||
|
- CDG demuxer and decoder
|
||||||
|
- R210 decoder
|
||||||
|
- Auravision Aura 1 and 2 decoders
|
||||||
|
- Deluxe Paint Animation playback system
|
||||||
|
- SIPR decoder
|
||||||
|
- Adobe Filmstrip muxer and demuxer
|
||||||
|
- RTP packetization and depacketization of H.263 and AMR
|
||||||
|
- Bink demuxer and audio/video decoders
|
||||||
|
- IFF PBM/ILBM bitmap decoder
|
||||||
|
- Indeo 5 decoder
|
||||||
|
- WMA Voice decoder
|
||||||
|
- AMR-NB decoder
|
||||||
|
- RTSP muxer
|
||||||
|
- HE-AAC v1 decoder
|
||||||
|
- Kega Game Video (KGV1) decoder
|
||||||
|
- Psygnosis YOP demuxer and video decoder
|
||||||
|
- RTP hinting in the mov/3gp/mp4 muxer
|
||||||
|
- VP8 decoding via libvpx
|
||||||
|
|
||||||
|
|
||||||
|
Notable license related changes
|
||||||
|
-------------------------------
|
||||||
|
|
||||||
|
- remaining GPL parts in AC-3 decoder converted to LGPL
|
||||||
|
- libswscale can now be compiled in LGPL mode
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
* 0.6.1
|
||||||
|
|
||||||
|
General notes
|
||||||
|
-------------
|
||||||
|
|
||||||
|
This point release includes some updates to make the 0.6 release series usable
|
||||||
|
for users that need to retain the existing behavior as closely as possible.
|
||||||
|
The changes follow below:
|
||||||
|
|
||||||
|
Bugfixes
|
||||||
|
--------
|
||||||
|
|
||||||
|
- fix autodetection of E-AC-3 substream samples
|
||||||
|
- performance fix for seekable HTTP
|
||||||
|
- add missing VP80 fourcc code for the VP8 codec
|
||||||
|
- small documentation fixes
|
||||||
|
- fix several potentially exploitable issues in the FLIC decoder
|
||||||
|
(addresses CVE-2010-3429)
|
||||||
|
|
||||||
|
|
||||||
|
HE-AAC v2 backport
|
||||||
|
------------------
|
||||||
|
|
||||||
|
This release includes a backport of the AAC decoder from trunk, which
|
||||||
|
enables proper playback of HE-AAC v2 media.
|
||||||
|
|
||||||
|
|
||||||
|
* 0.6.2
|
||||||
|
|
||||||
|
General notes
|
||||||
|
-------------
|
||||||
|
|
||||||
|
This is a maintenance-only release that addresses a small number of security
|
||||||
|
and portability issues. Distributors and system integrators are encouraged
|
||||||
|
to update and share their patches against this branch.
|
||||||
|
|
||||||
|
Security fixes
|
||||||
|
--------------
|
||||||
|
|
||||||
|
Programming errors in container and codec implementations may lead to
|
||||||
|
denial of service or the execution of arbitrary code if the user is
|
||||||
|
tricked into opening a malformed media file or stream.
|
||||||
|
|
||||||
|
Affected and updated have been the implementations of the following
|
||||||
|
codecs and container formats:
|
||||||
|
|
||||||
|
- VC1 decoder (Change related to CVE-2011-0723)
|
||||||
|
- APE decoder (cf. http://packetstorm.linuxsecurity.com/1103-exploits/vlc105-dos.txt)
|
||||||
|
|
||||||
|
|
||||||
|
* 0.6.3
|
||||||
|
|
||||||
|
General notes
|
||||||
|
-------------
|
||||||
|
|
||||||
|
This is a mostly maintenance-only release that addresses a small number
|
||||||
|
of bugs such as security and compilation issues. Moreover, this release
|
||||||
|
has been updated to work with gcc-4.6 and the VisualOn AAC encoder has
|
||||||
|
been backported from the Libav 0.7.2 release. Distributors and system
|
||||||
|
integrators are encouraged to update and share their patches against
|
||||||
|
this branch.
|
||||||
|
For a full list of changes please see the Changelog file.
|
||||||
|
|
||||||
|
|
||||||
|
* 0.6.4
|
||||||
|
|
||||||
|
General notes
|
||||||
|
-------------
|
||||||
|
|
||||||
|
This mostly maintenance-only release that addresses a number a number of
|
||||||
|
bugs such as security and compilation issues that have been brought to
|
||||||
|
our attention. Among other (rather minor) fixes, this release features
|
||||||
|
fixes for the QDM2 decoder (CVE-2011-4351), vp3 decoder (CVE-2011-4352),
|
||||||
|
DoS in the VP5/VP6 decoders (CVE-2011-4353), a buffer overflow in the
|
||||||
|
Sierra VMD decoder CVE-2011-4364, and a safety fix in the svq1 decoder
|
||||||
|
(CVE-2011-4579).
|
||||||
|
|
||||||
|
Distributors and system integrators are encouraged
|
||||||
|
to update and share their patches against this branch. For a full list
|
||||||
|
of changes please see the Changelog file.
|
||||||
|
|
||||||
|
|
||||||
|
* 0.6.5
|
||||||
|
|
||||||
|
General notes
|
||||||
|
-------------
|
||||||
|
|
||||||
|
This mostly maintenance-only release that addresses a number a number of
|
||||||
|
bugs such as security and compilation issues that have been brought to
|
||||||
|
our attention. Among other (rather minor) fixes, this release features
|
||||||
|
fixes for the VP3 decoder (CVE-2011-3892), vorbis decoder, and matroska
|
||||||
|
demuxer (CVE-2011-3893 and CVE-2011-3895).
|
||||||
|
|
||||||
|
Distributors and system integrators are encouraged
|
||||||
|
to update and share their patches against this branch. For a full list
|
||||||
|
of changes please see the Changelog file.
|
||||||
|
|
||||||
|
|
||||||
|
* 0.6.6
|
||||||
|
|
||||||
|
General notes
|
||||||
|
-------------
|
||||||
|
|
||||||
|
This mostly maintenance-only release that addresses a number a number of
|
||||||
|
bugs such as security and compilation issues that have been brought to
|
||||||
|
our attention. Among other fixes, this release features includes
|
||||||
|
security updates for the, DV decoder (CVE-2011-3929 and CVE-2011-3936),
|
||||||
|
VQA Video Decoder (CVE-2012-0947), DPCM codecs (CVE-2011-3951), AAC SBR
|
||||||
|
(CVE-2012-0850), H.264 (CVE-2012-0851), ADPCM (CVE-2012-0852), Shorten
|
||||||
|
(CVE-2012-0858), and the KMVC decoder (CVE-2011-3952).
|
||||||
|
|
||||||
|
Distributors and system integrators are encouraged
|
||||||
|
to update and share their patches against this branch. For a full list
|
||||||
|
of changes please see the Changelog file or the git commit history.
|
||||||
|
|||||||
16
arch.mak
16
arch.mak
@@ -1,16 +0,0 @@
|
|||||||
OBJS-$(HAVE_ARMV5TE) += $(ARMV5TE-OBJS) $(ARMV5TE-OBJS-yes)
|
|
||||||
OBJS-$(HAVE_ARMV6) += $(ARMV6-OBJS) $(ARMV6-OBJS-yes)
|
|
||||||
OBJS-$(HAVE_VFP) += $(VFP-OBJS) $(VFP-OBJS-yes)
|
|
||||||
OBJS-$(HAVE_NEON) += $(NEON-OBJS) $(NEON-OBJS-yes)
|
|
||||||
|
|
||||||
OBJS-$(HAVE_MIPSFPU) += $(MIPSFPU-OBJS) $(MIPSFPU-OBJS-yes)
|
|
||||||
OBJS-$(HAVE_MIPS32R2) += $(MIPS32R2-OBJS) $(MIPS32R2-OBJS-yes)
|
|
||||||
OBJS-$(HAVE_MIPSDSPR1) += $(MIPSDSPR1-OBJS) $(MIPSDSPR1-OBJS-yes)
|
|
||||||
OBJS-$(HAVE_MIPSDSPR2) += $(MIPSDSPR2-OBJS) $(MIPSDSPR2-OBJS-yes)
|
|
||||||
|
|
||||||
OBJS-$(HAVE_ALTIVEC) += $(ALTIVEC-OBJS) $(ALTIVEC-OBJS-yes)
|
|
||||||
|
|
||||||
OBJS-$(HAVE_VIS) += $(VIS-OBJS) $(VIS-OBJS-yes)
|
|
||||||
|
|
||||||
OBJS-$(HAVE_MMX) += $(MMX-OBJS) $(MMX-OBJS-yes)
|
|
||||||
OBJS-$(HAVE_YASM) += $(YASM-OBJS) $(YASM-OBJS-yes)
|
|
||||||
1977
cmdutils.c
1977
cmdutils.c
File diff suppressed because it is too large
Load Diff
485
cmdutils.h
485
cmdutils.h
@@ -22,17 +22,11 @@
|
|||||||
#ifndef FFMPEG_CMDUTILS_H
|
#ifndef FFMPEG_CMDUTILS_H
|
||||||
#define FFMPEG_CMDUTILS_H
|
#define FFMPEG_CMDUTILS_H
|
||||||
|
|
||||||
#include <stdint.h>
|
#include <inttypes.h>
|
||||||
|
|
||||||
#include "libavcodec/avcodec.h"
|
#include "libavcodec/avcodec.h"
|
||||||
#include "libavfilter/avfilter.h"
|
|
||||||
#include "libavformat/avformat.h"
|
#include "libavformat/avformat.h"
|
||||||
#include "libswscale/swscale.h"
|
#include "libswscale/swscale.h"
|
||||||
|
|
||||||
#ifdef __MINGW32__
|
|
||||||
#undef main /* We don't want SDL to override our main() */
|
|
||||||
#endif
|
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* program name, defined by the program for show_version().
|
* program name, defined by the program for show_version().
|
||||||
*/
|
*/
|
||||||
@@ -43,115 +37,61 @@ extern const char program_name[];
|
|||||||
*/
|
*/
|
||||||
extern const int program_birth_year;
|
extern const int program_birth_year;
|
||||||
|
|
||||||
/**
|
|
||||||
* this year, defined by the program for show_banner()
|
|
||||||
*/
|
|
||||||
extern const int this_year;
|
extern const int this_year;
|
||||||
|
|
||||||
|
extern const char **opt_names;
|
||||||
extern AVCodecContext *avcodec_opts[AVMEDIA_TYPE_NB];
|
extern AVCodecContext *avcodec_opts[AVMEDIA_TYPE_NB];
|
||||||
extern AVFormatContext *avformat_opts;
|
extern AVFormatContext *avformat_opts;
|
||||||
extern struct SwsContext *sws_opts;
|
extern struct SwsContext *sws_opts;
|
||||||
extern AVDictionary *swr_opts;
|
|
||||||
extern AVDictionary *format_opts, *codec_opts, *resample_opts;
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Register a program-specific cleanup routine.
|
|
||||||
*/
|
|
||||||
void register_exit(void (*cb)(int ret));
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Wraps exit with a program-specific cleanup routine.
|
|
||||||
*/
|
|
||||||
void exit_program(int ret);
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Initialize the cmdutils option system, in particular
|
|
||||||
* allocate the *_opts contexts.
|
|
||||||
*/
|
|
||||||
void init_opts(void);
|
|
||||||
/**
|
|
||||||
* Uninitialize the cmdutils option system, in particular
|
|
||||||
* free the *_opts contexts and their contents.
|
|
||||||
*/
|
|
||||||
void uninit_opts(void);
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Trivial log callback.
|
|
||||||
* Only suitable for opt_help and similar since it lacks prefix handling.
|
|
||||||
*/
|
|
||||||
void log_callback_help(void* ptr, int level, const char* fmt, va_list vl);
|
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* Fallback for options that are not explicitly handled, these will be
|
* Fallback for options that are not explicitly handled, these will be
|
||||||
* parsed through AVOptions.
|
* parsed through AVOptions.
|
||||||
*/
|
*/
|
||||||
int opt_default(void *optctx, const char *opt, const char *arg);
|
int opt_default(const char *opt, const char *arg);
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* Set the libav* libraries log level.
|
* Sets the libav* libraries log level.
|
||||||
*/
|
*/
|
||||||
int opt_loglevel(void *optctx, const char *opt, const char *arg);
|
int opt_loglevel(const char *opt, const char *arg);
|
||||||
|
|
||||||
int opt_report(const char *opt);
|
|
||||||
|
|
||||||
int opt_max_alloc(void *optctx, const char *opt, const char *arg);
|
|
||||||
|
|
||||||
int opt_cpuflags(void *optctx, const char *opt, const char *arg);
|
|
||||||
|
|
||||||
int opt_codec_debug(void *optctx, const char *opt, const char *arg);
|
|
||||||
|
|
||||||
int opt_opencl(void *optctx, const char *opt, const char *arg);
|
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* Limit the execution time.
|
* Limit the execution time.
|
||||||
*/
|
*/
|
||||||
int opt_timelimit(void *optctx, const char *opt, const char *arg);
|
int opt_timelimit(const char *opt, const char *arg);
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* Parse a string and return its corresponding value as a double.
|
* Parses a string and returns its corresponding value as a double.
|
||||||
* Exit from the application if the string cannot be correctly
|
* Exits from the application if the string cannot be correctly
|
||||||
* parsed or the corresponding value is invalid.
|
* parsed or the corresponding value is invalid.
|
||||||
*
|
*
|
||||||
* @param context the context of the value to be set (e.g. the
|
* @param context the context of the value to be set (e.g. the
|
||||||
* corresponding command line option name)
|
* corresponding commandline option name)
|
||||||
* @param numstr the string to be parsed
|
* @param numstr the string to be parsed
|
||||||
* @param type the type (OPT_INT64 or OPT_FLOAT) as which the
|
* @param type the type (OPT_INT64 or OPT_FLOAT) as which the
|
||||||
* string should be parsed
|
* string should be parsed
|
||||||
* @param min the minimum valid accepted value
|
* @param min the minimum valid accepted value
|
||||||
* @param max the maximum valid accepted value
|
* @param max the maximum valid accepted value
|
||||||
*/
|
*/
|
||||||
double parse_number_or_die(const char *context, const char *numstr, int type,
|
double parse_number_or_die(const char *context, const char *numstr, int type, double min, double max);
|
||||||
double min, double max);
|
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* Parse a string specifying a time and return its corresponding
|
* Parses a string specifying a time and returns its corresponding
|
||||||
* value as a number of microseconds. Exit from the application if
|
* value as a number of microseconds. Exits from the application if
|
||||||
* the string cannot be correctly parsed.
|
* the string cannot be correctly parsed.
|
||||||
*
|
*
|
||||||
* @param context the context of the value to be set (e.g. the
|
* @param context the context of the value to be set (e.g. the
|
||||||
* corresponding command line option name)
|
* corresponding commandline option name)
|
||||||
* @param timestr the string to be parsed
|
* @param timestr the string to be parsed
|
||||||
* @param is_duration a flag which tells how to interpret timestr, if
|
* @param is_duration a flag which tells how to interpret timestr, if
|
||||||
* not zero timestr is interpreted as a duration, otherwise as a
|
* not zero timestr is interpreted as a duration, otherwise as a
|
||||||
* date
|
* date
|
||||||
*
|
*
|
||||||
* @see av_parse_time()
|
* @see parse_date()
|
||||||
*/
|
*/
|
||||||
int64_t parse_time_or_die(const char *context, const char *timestr,
|
int64_t parse_time_or_die(const char *context, const char *timestr, int is_duration);
|
||||||
int is_duration);
|
|
||||||
|
|
||||||
typedef struct SpecifierOpt {
|
typedef struct {
|
||||||
char *specifier; /**< stream/chapter/program/... specifier */
|
|
||||||
union {
|
|
||||||
uint8_t *str;
|
|
||||||
int i;
|
|
||||||
int64_t i64;
|
|
||||||
float f;
|
|
||||||
double dbl;
|
|
||||||
} u;
|
|
||||||
} SpecifierOpt;
|
|
||||||
|
|
||||||
typedef struct OptionDef {
|
|
||||||
const char *name;
|
const char *name;
|
||||||
int flags;
|
int flags;
|
||||||
#define HAS_ARG 0x0001
|
#define HAS_ARG 0x0001
|
||||||
@@ -160,233 +100,42 @@ typedef struct OptionDef {
|
|||||||
#define OPT_STRING 0x0008
|
#define OPT_STRING 0x0008
|
||||||
#define OPT_VIDEO 0x0010
|
#define OPT_VIDEO 0x0010
|
||||||
#define OPT_AUDIO 0x0020
|
#define OPT_AUDIO 0x0020
|
||||||
|
#define OPT_GRAB 0x0040
|
||||||
#define OPT_INT 0x0080
|
#define OPT_INT 0x0080
|
||||||
#define OPT_FLOAT 0x0100
|
#define OPT_FLOAT 0x0100
|
||||||
#define OPT_SUBTITLE 0x0200
|
#define OPT_SUBTITLE 0x0200
|
||||||
#define OPT_INT64 0x0400
|
#define OPT_FUNC2 0x0400
|
||||||
#define OPT_EXIT 0x0800
|
#define OPT_INT64 0x0800
|
||||||
#define OPT_DATA 0x1000
|
#define OPT_EXIT 0x1000
|
||||||
#define OPT_PERFILE 0x2000 /* the option is per-file (currently ffmpeg-only).
|
|
||||||
implied by OPT_OFFSET or OPT_SPEC */
|
|
||||||
#define OPT_OFFSET 0x4000 /* option is specified as an offset in a passed optctx */
|
|
||||||
#define OPT_SPEC 0x8000 /* option is to be stored in an array of SpecifierOpt.
|
|
||||||
Implies OPT_OFFSET. Next element after the offset is
|
|
||||||
an int containing element count in the array. */
|
|
||||||
#define OPT_TIME 0x10000
|
|
||||||
#define OPT_DOUBLE 0x20000
|
|
||||||
#define OPT_INPUT 0x40000
|
|
||||||
#define OPT_OUTPUT 0x80000
|
|
||||||
union {
|
union {
|
||||||
void *dst_ptr;
|
void (*func_arg)(const char *); //FIXME passing error code as int return would be nicer then exit() in the func
|
||||||
int (*func_arg)(void *, const char *, const char *);
|
int *int_arg;
|
||||||
size_t off;
|
char **str_arg;
|
||||||
|
float *float_arg;
|
||||||
|
int (*func2_arg)(const char *, const char *);
|
||||||
|
int64_t *int64_arg;
|
||||||
} u;
|
} u;
|
||||||
const char *help;
|
const char *help;
|
||||||
const char *argname;
|
const char *argname;
|
||||||
} OptionDef;
|
} OptionDef;
|
||||||
|
|
||||||
/**
|
void show_help_options(const OptionDef *options, const char *msg, int mask, int value);
|
||||||
* Print help for all options matching specified flags.
|
|
||||||
*
|
|
||||||
* @param options a list of options
|
|
||||||
* @param msg title of this group. Only printed if at least one option matches.
|
|
||||||
* @param req_flags print only options which have all those flags set.
|
|
||||||
* @param rej_flags don't print options which have any of those flags set.
|
|
||||||
* @param alt_flags print only options that have at least one of those flags set
|
|
||||||
*/
|
|
||||||
void show_help_options(const OptionDef *options, const char *msg, int req_flags,
|
|
||||||
int rej_flags, int alt_flags);
|
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* Show help for all options with given flags in class and all its
|
* Parses the command line arguments.
|
||||||
* children.
|
|
||||||
*/
|
|
||||||
void show_help_children(const AVClass *class, int flags);
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Per-fftool specific help handler. Implemented in each
|
|
||||||
* fftool, called by show_help().
|
|
||||||
*/
|
|
||||||
void show_help_default(const char *opt, const char *arg);
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Generic -h handler common to all fftools.
|
|
||||||
*/
|
|
||||||
int show_help(void *optctx, const char *opt, const char *arg);
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Parse the command line arguments.
|
|
||||||
*
|
|
||||||
* @param optctx an opaque options context
|
|
||||||
* @param argc number of command line arguments
|
|
||||||
* @param argv values of command line arguments
|
|
||||||
* @param options Array with the definitions required to interpret every
|
* @param options Array with the definitions required to interpret every
|
||||||
* option of the form: -option_name [argument]
|
* option of the form: -<option_name> [<argument>]
|
||||||
* @param parse_arg_function Name of the function called to process every
|
* @param parse_arg_function Name of the function called to process every
|
||||||
* argument without a leading option name flag. NULL if such arguments do
|
* argument without a leading option name flag. NULL if such arguments do
|
||||||
* not have to be processed.
|
* not have to be processed.
|
||||||
*/
|
*/
|
||||||
void parse_options(void *optctx, int argc, char **argv, const OptionDef *options,
|
void parse_options(int argc, char **argv, const OptionDef *options,
|
||||||
void (* parse_arg_function)(void *optctx, const char*));
|
void (* parse_arg_function)(const char*));
|
||||||
|
|
||||||
|
void set_context_opts(void *ctx, void *opts_ctx, int flags);
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* Parse one given option.
|
* Prints an error message to stderr, indicating filename and a human
|
||||||
*
|
|
||||||
* @return on success 1 if arg was consumed, 0 otherwise; negative number on error
|
|
||||||
*/
|
|
||||||
int parse_option(void *optctx, const char *opt, const char *arg,
|
|
||||||
const OptionDef *options);
|
|
||||||
|
|
||||||
/**
|
|
||||||
* An option extracted from the commandline.
|
|
||||||
* Cannot use AVDictionary because of options like -map which can be
|
|
||||||
* used multiple times.
|
|
||||||
*/
|
|
||||||
typedef struct Option {
|
|
||||||
const OptionDef *opt;
|
|
||||||
const char *key;
|
|
||||||
const char *val;
|
|
||||||
} Option;
|
|
||||||
|
|
||||||
typedef struct OptionGroupDef {
|
|
||||||
/**< group name */
|
|
||||||
const char *name;
|
|
||||||
/**
|
|
||||||
* Option to be used as group separator. Can be NULL for groups which
|
|
||||||
* are terminated by a non-option argument (e.g. ffmpeg output files)
|
|
||||||
*/
|
|
||||||
const char *sep;
|
|
||||||
/**
|
|
||||||
* Option flags that must be set on each option that is
|
|
||||||
* applied to this group
|
|
||||||
*/
|
|
||||||
int flags;
|
|
||||||
} OptionGroupDef;
|
|
||||||
|
|
||||||
typedef struct OptionGroup {
|
|
||||||
const OptionGroupDef *group_def;
|
|
||||||
const char *arg;
|
|
||||||
|
|
||||||
Option *opts;
|
|
||||||
int nb_opts;
|
|
||||||
|
|
||||||
AVDictionary *codec_opts;
|
|
||||||
AVDictionary *format_opts;
|
|
||||||
AVDictionary *resample_opts;
|
|
||||||
struct SwsContext *sws_opts;
|
|
||||||
AVDictionary *swr_opts;
|
|
||||||
} OptionGroup;
|
|
||||||
|
|
||||||
/**
|
|
||||||
* A list of option groups that all have the same group type
|
|
||||||
* (e.g. input files or output files)
|
|
||||||
*/
|
|
||||||
typedef struct OptionGroupList {
|
|
||||||
const OptionGroupDef *group_def;
|
|
||||||
|
|
||||||
OptionGroup *groups;
|
|
||||||
int nb_groups;
|
|
||||||
} OptionGroupList;
|
|
||||||
|
|
||||||
typedef struct OptionParseContext {
|
|
||||||
OptionGroup global_opts;
|
|
||||||
|
|
||||||
OptionGroupList *groups;
|
|
||||||
int nb_groups;
|
|
||||||
|
|
||||||
/* parsing state */
|
|
||||||
OptionGroup cur_group;
|
|
||||||
} OptionParseContext;
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Parse an options group and write results into optctx.
|
|
||||||
*
|
|
||||||
* @param optctx an app-specific options context. NULL for global options group
|
|
||||||
*/
|
|
||||||
int parse_optgroup(void *optctx, OptionGroup *g);
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Split the commandline into an intermediate form convenient for further
|
|
||||||
* processing.
|
|
||||||
*
|
|
||||||
* The commandline is assumed to be composed of options which either belong to a
|
|
||||||
* group (those with OPT_SPEC, OPT_OFFSET or OPT_PERFILE) or are global
|
|
||||||
* (everything else).
|
|
||||||
*
|
|
||||||
* A group (defined by an OptionGroupDef struct) is a sequence of options
|
|
||||||
* terminated by either a group separator option (e.g. -i) or a parameter that
|
|
||||||
* is not an option (doesn't start with -). A group without a separator option
|
|
||||||
* must always be first in the supplied groups list.
|
|
||||||
*
|
|
||||||
* All options within the same group are stored in one OptionGroup struct in an
|
|
||||||
* OptionGroupList, all groups with the same group definition are stored in one
|
|
||||||
* OptionGroupList in OptionParseContext.groups. The order of group lists is the
|
|
||||||
* same as the order of group definitions.
|
|
||||||
*/
|
|
||||||
int split_commandline(OptionParseContext *octx, int argc, char *argv[],
|
|
||||||
const OptionDef *options,
|
|
||||||
const OptionGroupDef *groups, int nb_groups);
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Free all allocated memory in an OptionParseContext.
|
|
||||||
*/
|
|
||||||
void uninit_parse_context(OptionParseContext *octx);
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Find the '-loglevel' option in the command line args and apply it.
|
|
||||||
*/
|
|
||||||
void parse_loglevel(int argc, char **argv, const OptionDef *options);
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Return index of option opt in argv or 0 if not found.
|
|
||||||
*/
|
|
||||||
int locate_option(int argc, char **argv, const OptionDef *options,
|
|
||||||
const char *optname);
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Check if the given stream matches a stream specifier.
|
|
||||||
*
|
|
||||||
* @param s Corresponding format context.
|
|
||||||
* @param st Stream from s to be checked.
|
|
||||||
* @param spec A stream specifier of the [v|a|s|d]:[\<stream index\>] form.
|
|
||||||
*
|
|
||||||
* @return 1 if the stream matches, 0 if it doesn't, <0 on error
|
|
||||||
*/
|
|
||||||
int check_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec);
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Filter out options for given codec.
|
|
||||||
*
|
|
||||||
* Create a new options dictionary containing only the options from
|
|
||||||
* opts which apply to the codec with ID codec_id.
|
|
||||||
*
|
|
||||||
* @param opts dictionary to place options in
|
|
||||||
* @param codec_id ID of the codec that should be filtered for
|
|
||||||
* @param s Corresponding format context.
|
|
||||||
* @param st A stream from s for which the options should be filtered.
|
|
||||||
* @param codec The particular codec for which the options should be filtered.
|
|
||||||
* If null, the default one is looked up according to the codec id.
|
|
||||||
* @return a pointer to the created dictionary
|
|
||||||
*/
|
|
||||||
AVDictionary *filter_codec_opts(AVDictionary *opts, enum AVCodecID codec_id,
|
|
||||||
AVFormatContext *s, AVStream *st, AVCodec *codec);
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Setup AVCodecContext options for avformat_find_stream_info().
|
|
||||||
*
|
|
||||||
* Create an array of dictionaries, one dictionary for each stream
|
|
||||||
* contained in s.
|
|
||||||
* Each dictionary will contain the options from codec_opts which can
|
|
||||||
* be applied to the corresponding stream codec context.
|
|
||||||
*
|
|
||||||
* @return pointer to the created array of dictionaries, NULL if it
|
|
||||||
* cannot be created
|
|
||||||
*/
|
|
||||||
AVDictionary **setup_find_stream_info_opts(AVFormatContext *s,
|
|
||||||
AVDictionary *codec_opts);
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Print an error message to stderr, indicating filename and a human
|
|
||||||
* readable description of the error code err.
|
* readable description of the error code err.
|
||||||
*
|
*
|
||||||
* If strerror_r() is not available the use of this function in a
|
* If strerror_r() is not available the use of this function in a
|
||||||
@@ -396,167 +145,79 @@ AVDictionary **setup_find_stream_info_opts(AVFormatContext *s,
|
|||||||
*/
|
*/
|
||||||
void print_error(const char *filename, int err);
|
void print_error(const char *filename, int err);
|
||||||
|
|
||||||
|
void list_fmts(void (*get_fmt_string)(char *buf, int buf_size, int fmt), int nb_fmts);
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* Print the program banner to stderr. The banner contents depend on the
|
* Prints the program banner to stderr. The banner contents depend on the
|
||||||
* current version of the repository and of the libav* libraries used by
|
* current version of the repository and of the libav* libraries used by
|
||||||
* the program.
|
* the program.
|
||||||
*/
|
*/
|
||||||
void show_banner(int argc, char **argv, const OptionDef *options);
|
void show_banner(void);
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* Print the version of the program to stdout. The version message
|
* Prints the version of the program to stdout. The version message
|
||||||
* depends on the current versions of the repository and of the libav*
|
* depends on the current versions of the repository and of the libav*
|
||||||
* libraries.
|
* libraries.
|
||||||
* This option processing function does not utilize the arguments.
|
|
||||||
*/
|
*/
|
||||||
int show_version(void *optctx, const char *opt, const char *arg);
|
void show_version(void);
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* Print the license of the program to stdout. The license depends on
|
* Prints the license of the program to stdout. The license depends on
|
||||||
* the license of the libraries compiled into the program.
|
* the license of the libraries compiled into the program.
|
||||||
* This option processing function does not utilize the arguments.
|
|
||||||
*/
|
*/
|
||||||
int show_license(void *optctx, const char *opt, const char *arg);
|
void show_license(void);
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* Print a listing containing all the formats supported by the
|
* Prints a listing containing all the formats supported by the
|
||||||
* program.
|
|
||||||
* This option processing function does not utilize the arguments.
|
|
||||||
*/
|
|
||||||
int show_formats(void *optctx, const char *opt, const char *arg);
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Print a listing containing all the codecs supported by the
|
|
||||||
* program.
|
|
||||||
* This option processing function does not utilize the arguments.
|
|
||||||
*/
|
|
||||||
int show_codecs(void *optctx, const char *opt, const char *arg);
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Print a listing containing all the decoders supported by the
|
|
||||||
* program.
|
* program.
|
||||||
*/
|
*/
|
||||||
int show_decoders(void *optctx, const char *opt, const char *arg);
|
void show_formats(void);
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* Print a listing containing all the encoders supported by the
|
* Prints a listing containing all the codecs supported by the
|
||||||
* program.
|
* program.
|
||||||
*/
|
*/
|
||||||
int show_encoders(void *optctx, const char *opt, const char *arg);
|
void show_codecs(void);
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* Print a listing containing all the filters supported by the
|
* Prints a listing containing all the filters supported by the
|
||||||
* program.
|
|
||||||
* This option processing function does not utilize the arguments.
|
|
||||||
*/
|
|
||||||
int show_filters(void *optctx, const char *opt, const char *arg);
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Print a listing containing all the bit stream filters supported by the
|
|
||||||
* program.
|
|
||||||
* This option processing function does not utilize the arguments.
|
|
||||||
*/
|
|
||||||
int show_bsfs(void *optctx, const char *opt, const char *arg);
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Print a listing containing all the protocols supported by the
|
|
||||||
* program.
|
|
||||||
* This option processing function does not utilize the arguments.
|
|
||||||
*/
|
|
||||||
int show_protocols(void *optctx, const char *opt, const char *arg);
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Print a listing containing all the pixel formats supported by the
|
|
||||||
* program.
|
|
||||||
* This option processing function does not utilize the arguments.
|
|
||||||
*/
|
|
||||||
int show_pix_fmts(void *optctx, const char *opt, const char *arg);
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Print a listing containing all the standard channel layouts supported by
|
|
||||||
* the program.
|
|
||||||
* This option processing function does not utilize the arguments.
|
|
||||||
*/
|
|
||||||
int show_layouts(void *optctx, const char *opt, const char *arg);
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Print a listing containing all the sample formats supported by the
|
|
||||||
* program.
|
* program.
|
||||||
*/
|
*/
|
||||||
int show_sample_fmts(void *optctx, const char *opt, const char *arg);
|
void show_filters(void);
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* Return a positive value if a line read from standard input
|
* Prints a listing containing all the bit stream filters supported by the
|
||||||
* starts with [yY], otherwise return 0.
|
* program.
|
||||||
|
*/
|
||||||
|
void show_bsfs(void);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Prints a listing containing all the protocols supported by the
|
||||||
|
* program.
|
||||||
|
*/
|
||||||
|
void show_protocols(void);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Prints a listing containing all the pixel formats supported by the
|
||||||
|
* program.
|
||||||
|
*/
|
||||||
|
void show_pix_fmts(void);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Returns a positive value if reads from standard input a line
|
||||||
|
* starting with [yY], otherwise returns 0.
|
||||||
*/
|
*/
|
||||||
int read_yesno(void);
|
int read_yesno(void);
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* Read the file with name filename, and put its content in a newly
|
* Reads the file with name filename, and puts its content in a newly
|
||||||
* allocated 0-terminated buffer.
|
* allocated 0-terminated buffer.
|
||||||
*
|
*
|
||||||
* @param filename file to read from
|
* @param bufptr puts here the pointer to the newly allocated buffer
|
||||||
* @param bufptr location where pointer to buffer is returned
|
* @param size puts here the size of the newly allocated buffer
|
||||||
* @param size location where size of buffer is returned
|
|
||||||
* @return 0 in case of success, a negative value corresponding to an
|
* @return 0 in case of success, a negative value corresponding to an
|
||||||
* AVERROR error code in case of failure.
|
* AVERROR error code in case of failure.
|
||||||
*/
|
*/
|
||||||
int cmdutils_read_file(const char *filename, char **bufptr, size_t *size);
|
int read_file(const char *filename, char **bufptr, size_t *size);
|
||||||
|
|
||||||
/**
|
#endif /* FFMPEG_CMDUTILS_H */
|
||||||
* Get a file corresponding to a preset file.
|
|
||||||
*
|
|
||||||
* If is_path is non-zero, look for the file in the path preset_name.
|
|
||||||
* Otherwise search for a file named arg.ffpreset in the directories
|
|
||||||
* $FFMPEG_DATADIR (if set), $HOME/.ffmpeg, and in the datadir defined
|
|
||||||
* at configuration time or in a "ffpresets" folder along the executable
|
|
||||||
* on win32, in that order. If no such file is found and
|
|
||||||
* codec_name is defined, then search for a file named
|
|
||||||
* codec_name-preset_name.avpreset in the above-mentioned directories.
|
|
||||||
*
|
|
||||||
* @param filename buffer where the name of the found filename is written
|
|
||||||
* @param filename_size size in bytes of the filename buffer
|
|
||||||
* @param preset_name name of the preset to search
|
|
||||||
* @param is_path tell if preset_name is a filename path
|
|
||||||
* @param codec_name name of the codec for which to look for the
|
|
||||||
* preset, may be NULL
|
|
||||||
*/
|
|
||||||
FILE *get_preset_file(char *filename, size_t filename_size,
|
|
||||||
const char *preset_name, int is_path, const char *codec_name);
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Realloc array to hold new_size elements of elem_size.
|
|
||||||
* Calls exit() on failure.
|
|
||||||
*
|
|
||||||
* @param array array to reallocate
|
|
||||||
* @param elem_size size in bytes of each element
|
|
||||||
* @param size new element count will be written here
|
|
||||||
* @param new_size number of elements to place in reallocated array
|
|
||||||
* @return reallocated array
|
|
||||||
*/
|
|
||||||
void *grow_array(void *array, int elem_size, int *size, int new_size);
|
|
||||||
|
|
||||||
#define media_type_string av_get_media_type_string
|
|
||||||
|
|
||||||
#define GROW_ARRAY(array, nb_elems)\
|
|
||||||
array = grow_array(array, sizeof(*array), &nb_elems, nb_elems + 1)
|
|
||||||
|
|
||||||
#define GET_PIX_FMT_NAME(pix_fmt)\
|
|
||||||
const char *name = av_get_pix_fmt_name(pix_fmt);
|
|
||||||
|
|
||||||
#define GET_SAMPLE_FMT_NAME(sample_fmt)\
|
|
||||||
const char *name = av_get_sample_fmt_name(sample_fmt)
|
|
||||||
|
|
||||||
#define GET_SAMPLE_RATE_NAME(rate)\
|
|
||||||
char name[16];\
|
|
||||||
snprintf(name, sizeof(name), "%d", rate);
|
|
||||||
|
|
||||||
#define GET_CH_LAYOUT_NAME(ch_layout)\
|
|
||||||
char name[16];\
|
|
||||||
snprintf(name, sizeof(name), "0x%"PRIx64, ch_layout);
|
|
||||||
|
|
||||||
#define GET_CH_LAYOUT_DESC(ch_layout)\
|
|
||||||
char name[128];\
|
|
||||||
av_get_channel_layout_string(name, sizeof(name), 0, ch_layout);
|
|
||||||
|
|
||||||
#endif /* CMDUTILS_H */
|
|
||||||
|
|||||||
@@ -1,24 +1,13 @@
|
|||||||
{ "L" , OPT_EXIT, {.func_arg = show_license}, "show license" },
|
{ "L", OPT_EXIT, {(void*)show_license}, "show license" },
|
||||||
{ "h" , OPT_EXIT, {.func_arg = show_help}, "show help", "topic" },
|
{ "h", OPT_EXIT, {(void*)show_help}, "show help" },
|
||||||
{ "?" , OPT_EXIT, {.func_arg = show_help}, "show help", "topic" },
|
{ "?", OPT_EXIT, {(void*)show_help}, "show help" },
|
||||||
{ "help" , OPT_EXIT, {.func_arg = show_help}, "show help", "topic" },
|
{ "help", OPT_EXIT, {(void*)show_help}, "show help" },
|
||||||
{ "-help" , OPT_EXIT, {.func_arg = show_help}, "show help", "topic" },
|
{ "-help", OPT_EXIT, {(void*)show_help}, "show help" },
|
||||||
{ "version" , OPT_EXIT, {.func_arg = show_version}, "show version" },
|
{ "version", OPT_EXIT, {(void*)show_version}, "show version" },
|
||||||
{ "formats" , OPT_EXIT, {.func_arg = show_formats }, "show available formats" },
|
{ "formats" , OPT_EXIT, {(void*)show_formats }, "show available formats" },
|
||||||
{ "codecs" , OPT_EXIT, {.func_arg = show_codecs }, "show available codecs" },
|
{ "codecs" , OPT_EXIT, {(void*)show_codecs }, "show available codecs" },
|
||||||
{ "decoders" , OPT_EXIT, {.func_arg = show_decoders }, "show available decoders" },
|
{ "bsfs" , OPT_EXIT, {(void*)show_bsfs }, "show available bit stream filters" },
|
||||||
{ "encoders" , OPT_EXIT, {.func_arg = show_encoders }, "show available encoders" },
|
{ "protocols", OPT_EXIT, {(void*)show_protocols}, "show available protocols" },
|
||||||
{ "bsfs" , OPT_EXIT, {.func_arg = show_bsfs }, "show available bit stream filters" },
|
{ "filters", OPT_EXIT, {(void*)show_filters }, "show available filters" },
|
||||||
{ "protocols" , OPT_EXIT, {.func_arg = show_protocols}, "show available protocols" },
|
{ "pix_fmts" , OPT_EXIT, {(void*)show_pix_fmts }, "show available pixel formats" },
|
||||||
{ "filters" , OPT_EXIT, {.func_arg = show_filters }, "show available filters" },
|
{ "loglevel", HAS_ARG | OPT_FUNC2, {(void*)opt_loglevel}, "set libav* logging level", "loglevel" },
|
||||||
{ "pix_fmts" , OPT_EXIT, {.func_arg = show_pix_fmts }, "show available pixel formats" },
|
|
||||||
{ "layouts" , OPT_EXIT, {.func_arg = show_layouts }, "show standard channel layouts" },
|
|
||||||
{ "sample_fmts", OPT_EXIT, {.func_arg = show_sample_fmts }, "show available audio sample formats" },
|
|
||||||
{ "loglevel" , HAS_ARG, {.func_arg = opt_loglevel}, "set logging level", "loglevel" },
|
|
||||||
{ "v", HAS_ARG, {.func_arg = opt_loglevel}, "set logging level", "loglevel" },
|
|
||||||
{ "report" , 0, {(void*)opt_report}, "generate a report" },
|
|
||||||
{ "max_alloc" , HAS_ARG, {.func_arg = opt_max_alloc}, "set maximum size of a single allocated block", "bytes" },
|
|
||||||
{ "cpuflags" , HAS_ARG | OPT_EXPERT, {.func_arg = opt_cpuflags}, "force specific cpu flags", "flags" },
|
|
||||||
#if CONFIG_OPENCL
|
|
||||||
{ "opencl_options", HAS_ARG, {.func_arg = opt_opencl}, "set OpenCL environment options" },
|
|
||||||
#endif
|
|
||||||
|
|||||||
136
common.mak
136
common.mak
@@ -6,70 +6,60 @@
|
|||||||
all: all-yes
|
all: all-yes
|
||||||
|
|
||||||
ifndef SUBDIR
|
ifndef SUBDIR
|
||||||
|
vpath %.c $(SRC_DIR)
|
||||||
|
vpath %.h $(SRC_DIR)
|
||||||
|
vpath %.S $(SRC_DIR)
|
||||||
|
vpath %.asm $(SRC_DIR)
|
||||||
|
vpath %.v $(SRC_DIR)
|
||||||
|
|
||||||
|
ifeq ($(SRC_DIR),$(SRC_PATH_BARE))
|
||||||
|
BUILD_ROOT_REL = .
|
||||||
|
else
|
||||||
|
BUILD_ROOT_REL = ..
|
||||||
|
endif
|
||||||
|
|
||||||
ifndef V
|
ifndef V
|
||||||
Q = @
|
Q = @
|
||||||
ECHO = printf "$(1)\t%s\n" $(2)
|
ECHO = printf "$(1)\t%s\n" $(2)
|
||||||
BRIEF = CC CXX HOSTCC HOSTLD AS YASM AR LD STRIP CP
|
BRIEF = CC AS YASM AR LD HOSTCC STRIP CP
|
||||||
SILENT = DEPCC DEPHOSTCC DEPAS DEPYASM RANLIB RM
|
SILENT = DEPCC YASMDEP RM RANLIB
|
||||||
|
|
||||||
MSG = $@
|
MSG = $@
|
||||||
M = @$(call ECHO,$(TAG),$@);
|
M = @$(call ECHO,$(TAG),$@);
|
||||||
$(foreach VAR,$(BRIEF), \
|
$(foreach VAR,$(BRIEF), \
|
||||||
$(eval override $(VAR) = @$$(call ECHO,$(VAR),$$(MSG)); $($(VAR))))
|
$(eval $(VAR) = @$$(call ECHO,$(VAR),$$(MSG)); $($(VAR))))
|
||||||
$(foreach VAR,$(SILENT),$(eval override $(VAR) = @$($(VAR))))
|
$(foreach VAR,$(SILENT),$(eval $(VAR) = @$($(VAR))))
|
||||||
$(eval INSTALL = @$(call ECHO,INSTALL,$$(^:$(SRC_DIR)/%=%)); $(INSTALL))
|
$(eval INSTALL = @$(call ECHO,INSTALL,$$(^:$(SRC_DIR)/%=%)); $(INSTALL))
|
||||||
endif
|
endif
|
||||||
|
|
||||||
ALLFFLIBS = avcodec avdevice avfilter avformat avresample avutil postproc swscale swresample
|
ALLFFLIBS = avcodec avdevice avfilter avformat avutil postproc swscale
|
||||||
|
|
||||||
# NASM requires -I path terminated with /
|
CPPFLAGS := -I$(BUILD_ROOT_REL) -I$(SRC_PATH) $(CPPFLAGS)
|
||||||
IFLAGS := -I. -I$(SRC_PATH)/
|
CFLAGS += $(ECFLAGS)
|
||||||
CPPFLAGS := $(IFLAGS) $(CPPFLAGS)
|
|
||||||
CFLAGS += $(ECFLAGS)
|
|
||||||
CCFLAGS = $(CPPFLAGS) $(CFLAGS)
|
|
||||||
ASFLAGS := $(CPPFLAGS) $(ASFLAGS)
|
|
||||||
CXXFLAGS += $(CPPFLAGS) $(CFLAGS)
|
|
||||||
YASMFLAGS += $(IFLAGS:%=%/) -Pconfig.asm
|
|
||||||
|
|
||||||
HOSTCCFLAGS = $(IFLAGS) $(HOSTCPPFLAGS) $(HOSTCFLAGS)
|
|
||||||
LDFLAGS := $(ALLFFLIBS:%=$(LD_PATH)lib%) $(LDFLAGS)
|
|
||||||
|
|
||||||
define COMPILE
|
|
||||||
$(call $(1)DEP,$(1))
|
|
||||||
$($(1)) $($(1)FLAGS) $($(1)_DEPFLAGS) $($(1)_C) $($(1)_O) $<
|
|
||||||
endef
|
|
||||||
|
|
||||||
COMPILE_C = $(call COMPILE,CC)
|
|
||||||
COMPILE_CXX = $(call COMPILE,CXX)
|
|
||||||
COMPILE_S = $(call COMPILE,AS)
|
|
||||||
|
|
||||||
%.o: %.c
|
%.o: %.c
|
||||||
$(COMPILE_C)
|
$(CCDEP)
|
||||||
|
$(CC) $(CPPFLAGS) $(CFLAGS) $(CC_DEPFLAGS) -c $(CC_O) $<
|
||||||
%.o: %.cpp
|
|
||||||
$(COMPILE_CXX)
|
|
||||||
|
|
||||||
%.s: %.c
|
|
||||||
$(CC) $(CPPFLAGS) $(CFLAGS) -S -o $@ $<
|
|
||||||
|
|
||||||
%.o: %.S
|
%.o: %.S
|
||||||
$(COMPILE_S)
|
$(ASDEP)
|
||||||
|
$(AS) $(CPPFLAGS) $(ASFLAGS) $(AS_DEPFLAGS) -c -o $@ $<
|
||||||
|
|
||||||
%.i: %.c
|
%.ho: %.h
|
||||||
$(CC) $(CCFLAGS) $(CC_E) $<
|
$(CC) $(CPPFLAGS) $(CFLAGS) -Wno-unused -c -o $@ -x c $<
|
||||||
|
|
||||||
%.h.c:
|
%$(EXESUF): %.c
|
||||||
$(Q)echo '#include "$*.h"' >$@
|
|
||||||
|
|
||||||
%.ver: %.v
|
%.ver: %.v
|
||||||
$(Q)sed 's/$$MAJOR/$($(basename $(@F))_VERSION_MAJOR)/' $^ > $@
|
$(Q)sed 's/$$MAJOR/$($(basename $(@F))_VERSION_MAJOR)/' $^ > $@
|
||||||
|
|
||||||
%.c %.h: TAG = GEN
|
%.c %.h: TAG = GEN
|
||||||
|
|
||||||
# Dummy rule to stop make trying to rebuild removed or renamed headers
|
install: install-libs install-headers
|
||||||
%.h:
|
install-libs: install-libs-yes
|
||||||
@:
|
|
||||||
|
uninstall: uninstall-libs uninstall-headers
|
||||||
|
|
||||||
|
.PHONY: all depend dep *clean install* uninstall* examples testprogs
|
||||||
|
|
||||||
# Disable suffix rules. Most of the builtin rules are suffix rules,
|
# Disable suffix rules. Most of the builtin rules are suffix rules,
|
||||||
# so this saves some time on slow systems.
|
# so this saves some time on slow systems.
|
||||||
@@ -79,63 +69,41 @@ COMPILE_S = $(call COMPILE,AS)
|
|||||||
$(OBJS):
|
$(OBJS):
|
||||||
endif
|
endif
|
||||||
|
|
||||||
include $(SRC_PATH)/arch.mak
|
OBJS-$(HAVE_MMX) += $(MMX-OBJS-yes)
|
||||||
|
|
||||||
|
CFLAGS += $(CFLAGS-yes)
|
||||||
OBJS += $(OBJS-yes)
|
OBJS += $(OBJS-yes)
|
||||||
FFLIBS := $(FFLIBS-yes) $(FFLIBS)
|
FFLIBS := $(FFLIBS-yes) $(FFLIBS)
|
||||||
TESTPROGS += $(TESTPROGS-yes)
|
TESTPROGS += $(TESTPROGS-yes)
|
||||||
|
|
||||||
LDLIBS = $(FFLIBS:%=%$(BUILDSUF))
|
FFEXTRALIBS := $(addprefix -l,$(addsuffix $(BUILDSUF),$(FFLIBS))) $(EXTRALIBS)
|
||||||
FFEXTRALIBS := $(LDLIBS:%=$(LD_LIB)) $(EXTRALIBS)
|
FFLDFLAGS := $(addprefix -L$(BUILD_ROOT)/lib,$(ALLFFLIBS)) $(LDFLAGS)
|
||||||
|
|
||||||
EXAMPLES := $(EXAMPLES:%=$(SUBDIR)%-example$(EXESUF))
|
EXAMPLES := $(addprefix $(SUBDIR),$(addsuffix -example$(EXESUF),$(EXAMPLES)))
|
||||||
OBJS := $(sort $(OBJS:%=$(SUBDIR)%))
|
OBJS := $(addprefix $(SUBDIR),$(sort $(OBJS)))
|
||||||
TESTOBJS := $(TESTOBJS:%=$(SUBDIR)%) $(TESTPROGS:%=$(SUBDIR)%-test.o)
|
TESTOBJS := $(addprefix $(SUBDIR),$(TESTOBJS))
|
||||||
TESTPROGS := $(TESTPROGS:%=$(SUBDIR)%-test$(EXESUF))
|
TESTPROGS := $(addprefix $(SUBDIR),$(addsuffix -test$(EXESUF),$(TESTPROGS)))
|
||||||
HOSTOBJS := $(HOSTPROGS:%=$(SUBDIR)%.o)
|
HOSTOBJS := $(addprefix $(SUBDIR),$(addsuffix .o,$(HOSTPROGS)))
|
||||||
HOSTPROGS := $(HOSTPROGS:%=$(SUBDIR)%$(HOSTEXESUF))
|
HOSTPROGS := $(addprefix $(SUBDIR),$(addsuffix $(HOSTEXESUF),$(HOSTPROGS)))
|
||||||
TOOLS += $(TOOLS-yes)
|
|
||||||
TOOLOBJS := $(TOOLS:%=tools/%.o)
|
|
||||||
TOOLS := $(TOOLS:%=tools/%$(EXESUF))
|
|
||||||
HEADERS += $(HEADERS-yes)
|
|
||||||
|
|
||||||
DEP_LIBS := $(foreach NAME,$(FFLIBS),lib$(NAME)/$($(CONFIG_SHARED:yes=S)LIBNAME))
|
DEP_LIBS := $(foreach NAME,$(FFLIBS),$(BUILD_ROOT_REL)/lib$(NAME)/$($(CONFIG_SHARED:yes=S)LIBNAME))
|
||||||
|
|
||||||
SRC_DIR := $(SRC_PATH)/lib$(NAME)
|
|
||||||
ALLHEADERS := $(subst $(SRC_DIR)/,$(SUBDIR),$(wildcard $(SRC_DIR)/*.h $(SRC_DIR)/$(ARCH)/*.h))
|
ALLHEADERS := $(subst $(SRC_DIR)/,$(SUBDIR),$(wildcard $(SRC_DIR)/*.h $(SRC_DIR)/$(ARCH)/*.h))
|
||||||
SKIPHEADERS += $(ARCH_HEADERS:%=$(ARCH)/%) $(SKIPHEADERS-)
|
SKIPHEADERS += $(addprefix $(ARCH)/,$(ARCH_HEADERS))
|
||||||
SKIPHEADERS := $(SKIPHEADERS:%=$(SUBDIR)%)
|
SKIPHEADERS := $(addprefix $(SUBDIR),$(SKIPHEADERS-) $(SKIPHEADERS))
|
||||||
HOBJS = $(filter-out $(SKIPHEADERS:.h=.h.o),$(ALLHEADERS:.h=.h.o))
|
checkheaders: $(filter-out $(SKIPHEADERS:.h=.ho),$(ALLHEADERS:.h=.ho))
|
||||||
checkheaders: $(HOBJS)
|
|
||||||
.SECONDARY: $(HOBJS:.o=.c)
|
|
||||||
|
|
||||||
alltools: $(TOOLS)
|
|
||||||
|
|
||||||
$(HOSTOBJS): %.o: %.c
|
$(HOSTOBJS): %.o: %.c
|
||||||
$(call COMPILE,HOSTCC)
|
$(HOSTCC) $(HOSTCFLAGS) -c -o $@ $<
|
||||||
|
|
||||||
$(HOSTPROGS): %$(HOSTEXESUF): %.o
|
$(HOSTPROGS): %$(HOSTEXESUF): %.o
|
||||||
$(HOSTLD) $(HOSTLDFLAGS) $(HOSTLD_O) $< $(HOSTLIBS)
|
$(HOSTCC) $(HOSTLDFLAGS) -o $@ $< $(HOSTLIBS)
|
||||||
|
|
||||||
$(OBJS): | $(sort $(dir $(OBJS)))
|
DEPS := $(OBJS:.o=.d)
|
||||||
$(HOBJS): | $(sort $(dir $(HOBJS)))
|
depend dep: $(DEPS)
|
||||||
$(HOSTOBJS): | $(sort $(dir $(HOSTOBJS)))
|
|
||||||
$(TESTOBJS): | $(sort $(dir $(TESTOBJS)))
|
|
||||||
$(TOOLOBJS): | tools
|
|
||||||
|
|
||||||
OBJDIRS := $(OBJDIRS) $(dir $(OBJS) $(HOBJS) $(HOSTOBJS) $(TESTOBJS))
|
CLEANSUFFIXES = *.d *.o *~ *.ho *.map *.ver
|
||||||
|
|
||||||
CLEANSUFFIXES = *.d *.o *~ *.h.c *.map *.ver *.ho *.gcno *.gcda
|
|
||||||
DISTCLEANSUFFIXES = *.pc
|
DISTCLEANSUFFIXES = *.pc
|
||||||
LIBSUFFIXES = *.a *.lib *.so *.so.* *.dylib *.dll *.def *.dll.a
|
LIBSUFFIXES = *.a *.lib *.so *.so.* *.dylib *.dll *.def *.dll.a *.exp
|
||||||
|
|
||||||
define RULES
|
-include $(wildcard $(DEPS))
|
||||||
clean::
|
|
||||||
$(RM) $(OBJS) $(OBJS:.o=.d)
|
|
||||||
$(RM) $(HOSTPROGS)
|
|
||||||
$(RM) $(TOOLS)
|
|
||||||
endef
|
|
||||||
|
|
||||||
$(eval $(RULES))
|
|
||||||
|
|
||||||
-include $(wildcard $(OBJS:.o=.d) $(HOSTOBJS:.o=.d) $(TESTOBJS:.o=.d) $(HOBJS:.o=.d))
|
|
||||||
|
|||||||
@@ -1,14 +0,0 @@
|
|||||||
/*
|
|
||||||
* Workaround aix-specific class() function clashing with ffmpeg class usage
|
|
||||||
*/
|
|
||||||
|
|
||||||
#ifndef COMPAT_AIX_MATH_H
|
|
||||||
#define COMPAT_AIX_MATH_H
|
|
||||||
|
|
||||||
#define class class_in_math_h_causes_problems
|
|
||||||
|
|
||||||
#include_next <math.h>
|
|
||||||
|
|
||||||
#undef class
|
|
||||||
|
|
||||||
#endif /* COMPAT_AIX_MATH_H */
|
|
||||||
@@ -1,879 +0,0 @@
|
|||||||
// Avisynth C Interface Version 0.20
|
|
||||||
// Copyright 2003 Kevin Atkinson
|
|
||||||
|
|
||||||
// This program is free software; you can redistribute it and/or modify
|
|
||||||
// it under the terms of the GNU General Public License as published by
|
|
||||||
// the Free Software Foundation; either version 2 of the License, or
|
|
||||||
// (at your option) any later version.
|
|
||||||
//
|
|
||||||
// This program is distributed in the hope that it will be useful,
|
|
||||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
||||||
// GNU General Public License for more details.
|
|
||||||
//
|
|
||||||
// You should have received a copy of the GNU General Public License
|
|
||||||
// along with this program; if not, write to the Free Software
|
|
||||||
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA, or visit
|
|
||||||
// http://www.gnu.org/copyleft/gpl.html .
|
|
||||||
//
|
|
||||||
// As a special exception, I give you permission to link to the
|
|
||||||
// Avisynth C interface with independent modules that communicate with
|
|
||||||
// the Avisynth C interface solely through the interfaces defined in
|
|
||||||
// avisynth_c.h, regardless of the license terms of these independent
|
|
||||||
// modules, and to copy and distribute the resulting combined work
|
|
||||||
// under terms of your choice, provided that every copy of the
|
|
||||||
// combined work is accompanied by a complete copy of the source code
|
|
||||||
// of the Avisynth C interface and Avisynth itself (with the version
|
|
||||||
// used to produce the combined work), being distributed under the
|
|
||||||
// terms of the GNU General Public License plus this exception. An
|
|
||||||
// independent module is a module which is not derived from or based
|
|
||||||
// on Avisynth C Interface, such as 3rd-party filters, import and
|
|
||||||
// export plugins, or graphical user interfaces.
|
|
||||||
|
|
||||||
// NOTE: this is a partial update of the Avisynth C interface to recognize
|
|
||||||
// new color spaces added in Avisynth 2.60. By no means is this document
|
|
||||||
// completely Avisynth 2.60 compliant.
|
|
||||||
|
|
||||||
#ifndef __AVISYNTH_C__
|
|
||||||
#define __AVISYNTH_C__
|
|
||||||
|
|
||||||
#ifdef __cplusplus
|
|
||||||
# define EXTERN_C extern "C"
|
|
||||||
#else
|
|
||||||
# define EXTERN_C
|
|
||||||
#endif
|
|
||||||
|
|
||||||
#define AVSC_USE_STDCALL 1
|
|
||||||
|
|
||||||
#ifndef AVSC_USE_STDCALL
|
|
||||||
# define AVSC_CC __cdecl
|
|
||||||
#else
|
|
||||||
# define AVSC_CC __stdcall
|
|
||||||
#endif
|
|
||||||
|
|
||||||
#define AVSC_INLINE static __inline
|
|
||||||
|
|
||||||
#ifdef AVISYNTH_C_EXPORTS
|
|
||||||
# define AVSC_EXPORT EXTERN_C
|
|
||||||
# define AVSC_API(ret, name) EXTERN_C __declspec(dllexport) ret AVSC_CC name
|
|
||||||
#else
|
|
||||||
# define AVSC_EXPORT EXTERN_C __declspec(dllexport)
|
|
||||||
# ifndef AVSC_NO_DECLSPEC
|
|
||||||
# define AVSC_API(ret, name) EXTERN_C __declspec(dllimport) ret AVSC_CC name
|
|
||||||
# else
|
|
||||||
# define AVSC_API(ret, name) typedef ret (AVSC_CC *name##_func)
|
|
||||||
# endif
|
|
||||||
#endif
|
|
||||||
|
|
||||||
typedef unsigned char BYTE;
|
|
||||||
#ifdef __GNUC__
|
|
||||||
typedef long long int INT64;
|
|
||||||
#else
|
|
||||||
typedef __int64 INT64;
|
|
||||||
#endif
|
|
||||||
|
|
||||||
|
|
||||||
/////////////////////////////////////////////////////////////////////
|
|
||||||
//
|
|
||||||
// Constants
|
|
||||||
//
|
|
||||||
|
|
||||||
#ifndef __AVISYNTH_H__
|
|
||||||
enum { AVISYNTH_INTERFACE_VERSION = 4 };
|
|
||||||
#endif
|
|
||||||
|
|
||||||
enum {AVS_SAMPLE_INT8 = 1<<0,
|
|
||||||
AVS_SAMPLE_INT16 = 1<<1,
|
|
||||||
AVS_SAMPLE_INT24 = 1<<2,
|
|
||||||
AVS_SAMPLE_INT32 = 1<<3,
|
|
||||||
AVS_SAMPLE_FLOAT = 1<<4};
|
|
||||||
|
|
||||||
enum {AVS_PLANAR_Y=1<<0,
|
|
||||||
AVS_PLANAR_U=1<<1,
|
|
||||||
AVS_PLANAR_V=1<<2,
|
|
||||||
AVS_PLANAR_ALIGNED=1<<3,
|
|
||||||
AVS_PLANAR_Y_ALIGNED=AVS_PLANAR_Y|AVS_PLANAR_ALIGNED,
|
|
||||||
AVS_PLANAR_U_ALIGNED=AVS_PLANAR_U|AVS_PLANAR_ALIGNED,
|
|
||||||
AVS_PLANAR_V_ALIGNED=AVS_PLANAR_V|AVS_PLANAR_ALIGNED,
|
|
||||||
AVS_PLANAR_A=1<<4,
|
|
||||||
AVS_PLANAR_R=1<<5,
|
|
||||||
AVS_PLANAR_G=1<<6,
|
|
||||||
AVS_PLANAR_B=1<<7,
|
|
||||||
AVS_PLANAR_A_ALIGNED=AVS_PLANAR_A|AVS_PLANAR_ALIGNED,
|
|
||||||
AVS_PLANAR_R_ALIGNED=AVS_PLANAR_R|AVS_PLANAR_ALIGNED,
|
|
||||||
AVS_PLANAR_G_ALIGNED=AVS_PLANAR_G|AVS_PLANAR_ALIGNED,
|
|
||||||
AVS_PLANAR_B_ALIGNED=AVS_PLANAR_B|AVS_PLANAR_ALIGNED};
|
|
||||||
|
|
||||||
// Colorspace properties.
|
|
||||||
enum {AVS_CS_BGR = 1<<28,
|
|
||||||
AVS_CS_YUV = 1<<29,
|
|
||||||
AVS_CS_INTERLEAVED = 1<<30,
|
|
||||||
AVS_CS_PLANAR = 1<<31,
|
|
||||||
|
|
||||||
AVS_CS_SHIFT_SUB_WIDTH = 0,
|
|
||||||
AVS_CS_SHIFT_SUB_HEIGHT = 1 << 3,
|
|
||||||
AVS_CS_SHIFT_SAMPLE_BITS = 1 << 4,
|
|
||||||
|
|
||||||
AVS_CS_SUB_WIDTH_MASK = 7 << AVS_CS_SHIFT_SUB_WIDTH,
|
|
||||||
AVS_CS_SUB_WIDTH_1 = 3 << AVS_CS_SHIFT_SUB_WIDTH, // YV24
|
|
||||||
AVS_CS_SUB_WIDTH_2 = 0 << AVS_CS_SHIFT_SUB_WIDTH, // YV12, I420, YV16
|
|
||||||
AVS_CS_SUB_WIDTH_4 = 1 << AVS_CS_SHIFT_SUB_WIDTH, // YUV9, YV411
|
|
||||||
|
|
||||||
AVS_CS_VPLANEFIRST = 1 << 3, // YV12, YV16, YV24, YV411, YUV9
|
|
||||||
AVS_CS_UPLANEFIRST = 1 << 4, // I420
|
|
||||||
|
|
||||||
AVS_CS_SUB_HEIGHT_MASK = 7 << AVS_CS_SHIFT_SUB_HEIGHT,
|
|
||||||
AVS_CS_SUB_HEIGHT_1 = 3 << AVS_CS_SHIFT_SUB_HEIGHT, // YV16, YV24, YV411
|
|
||||||
AVS_CS_SUB_HEIGHT_2 = 0 << AVS_CS_SHIFT_SUB_HEIGHT, // YV12, I420
|
|
||||||
AVS_CS_SUB_HEIGHT_4 = 1 << AVS_CS_SHIFT_SUB_HEIGHT, // YUV9
|
|
||||||
|
|
||||||
AVS_CS_SAMPLE_BITS_MASK = 7 << AVS_CS_SHIFT_SAMPLE_BITS,
|
|
||||||
AVS_CS_SAMPLE_BITS_8 = 0 << AVS_CS_SHIFT_SAMPLE_BITS,
|
|
||||||
AVS_CS_SAMPLE_BITS_16 = 1 << AVS_CS_SHIFT_SAMPLE_BITS,
|
|
||||||
AVS_CS_SAMPLE_BITS_32 = 2 << AVS_CS_SHIFT_SAMPLE_BITS,
|
|
||||||
|
|
||||||
AVS_CS_PLANAR_MASK = AVS_CS_PLANAR | AVS_CS_INTERLEAVED | AVS_CS_YUV | AVS_CS_BGR | AVS_CS_SAMPLE_BITS_MASK | AVS_CS_SUB_HEIGHT_MASK | AVS_CS_SUB_WIDTH_MASK,
|
|
||||||
AVS_CS_PLANAR_FILTER = ~( AVS_CS_VPLANEFIRST | AVS_CS_UPLANEFIRST )};
|
|
||||||
|
|
||||||
// Specific colorformats
|
|
||||||
enum {
|
|
||||||
AVS_CS_UNKNOWN = 0,
|
|
||||||
AVS_CS_BGR24 = 1<<0 | AVS_CS_BGR | AVS_CS_INTERLEAVED,
|
|
||||||
AVS_CS_BGR32 = 1<<1 | AVS_CS_BGR | AVS_CS_INTERLEAVED,
|
|
||||||
AVS_CS_YUY2 = 1<<2 | AVS_CS_YUV | AVS_CS_INTERLEAVED,
|
|
||||||
// AVS_CS_YV12 = 1<<3 Reserved
|
|
||||||
// AVS_CS_I420 = 1<<4 Reserved
|
|
||||||
AVS_CS_RAW32 = 1<<5 | AVS_CS_INTERLEAVED,
|
|
||||||
|
|
||||||
AVS_CS_YV24 = AVS_CS_PLANAR | AVS_CS_YUV | AVS_CS_SAMPLE_BITS_8 | AVS_CS_VPLANEFIRST | AVS_CS_SUB_HEIGHT_1 | AVS_CS_SUB_WIDTH_1, // YVU 4:4:4 planar
|
|
||||||
AVS_CS_YV16 = AVS_CS_PLANAR | AVS_CS_YUV | AVS_CS_SAMPLE_BITS_8 | AVS_CS_VPLANEFIRST | AVS_CS_SUB_HEIGHT_1 | AVS_CS_SUB_WIDTH_2, // YVU 4:2:2 planar
|
|
||||||
AVS_CS_YV12 = AVS_CS_PLANAR | AVS_CS_YUV | AVS_CS_SAMPLE_BITS_8 | AVS_CS_VPLANEFIRST | AVS_CS_SUB_HEIGHT_2 | AVS_CS_SUB_WIDTH_2, // YVU 4:2:0 planar
|
|
||||||
AVS_CS_I420 = AVS_CS_PLANAR | AVS_CS_YUV | AVS_CS_SAMPLE_BITS_8 | AVS_CS_UPLANEFIRST | AVS_CS_SUB_HEIGHT_2 | AVS_CS_SUB_WIDTH_2, // YUV 4:2:0 planar
|
|
||||||
AVS_CS_IYUV = AVS_CS_I420,
|
|
||||||
AVS_CS_YV411 = AVS_CS_PLANAR | AVS_CS_YUV | AVS_CS_SAMPLE_BITS_8 | AVS_CS_VPLANEFIRST | AVS_CS_SUB_HEIGHT_1 | AVS_CS_SUB_WIDTH_4, // YVU 4:1:1 planar
|
|
||||||
AVS_CS_YUV9 = AVS_CS_PLANAR | AVS_CS_YUV | AVS_CS_SAMPLE_BITS_8 | AVS_CS_VPLANEFIRST | AVS_CS_SUB_HEIGHT_4 | AVS_CS_SUB_WIDTH_4, // YVU 4:1:0 planar
|
|
||||||
AVS_CS_Y8 = AVS_CS_PLANAR | AVS_CS_INTERLEAVED | AVS_CS_YUV | AVS_CS_SAMPLE_BITS_8 // Y 4:0:0 planar
|
|
||||||
};
|
|
||||||
|
|
||||||
enum {
|
|
||||||
AVS_IT_BFF = 1<<0,
|
|
||||||
AVS_IT_TFF = 1<<1,
|
|
||||||
AVS_IT_FIELDBASED = 1<<2};
|
|
||||||
|
|
||||||
enum {
|
|
||||||
AVS_FILTER_TYPE=1,
|
|
||||||
AVS_FILTER_INPUT_COLORSPACE=2,
|
|
||||||
AVS_FILTER_OUTPUT_TYPE=9,
|
|
||||||
AVS_FILTER_NAME=4,
|
|
||||||
AVS_FILTER_AUTHOR=5,
|
|
||||||
AVS_FILTER_VERSION=6,
|
|
||||||
AVS_FILTER_ARGS=7,
|
|
||||||
AVS_FILTER_ARGS_INFO=8,
|
|
||||||
AVS_FILTER_ARGS_DESCRIPTION=10,
|
|
||||||
AVS_FILTER_DESCRIPTION=11};
|
|
||||||
|
|
||||||
enum { //SUBTYPES
|
|
||||||
AVS_FILTER_TYPE_AUDIO=1,
|
|
||||||
AVS_FILTER_TYPE_VIDEO=2,
|
|
||||||
AVS_FILTER_OUTPUT_TYPE_SAME=3,
|
|
||||||
AVS_FILTER_OUTPUT_TYPE_DIFFERENT=4};
|
|
||||||
|
|
||||||
enum {
|
|
||||||
AVS_CACHE_NOTHING=0,
|
|
||||||
AVS_CACHE_RANGE=1,
|
|
||||||
AVS_CACHE_ALL=2,
|
|
||||||
AVS_CACHE_AUDIO=3,
|
|
||||||
AVS_CACHE_AUDIO_NONE=4,
|
|
||||||
AVS_CACHE_AUDIO_AUTO=5
|
|
||||||
};
|
|
||||||
|
|
||||||
#define AVS_FRAME_ALIGN 16
|
|
||||||
|
|
||||||
typedef struct AVS_Clip AVS_Clip;
|
|
||||||
typedef struct AVS_ScriptEnvironment AVS_ScriptEnvironment;
|
|
||||||
|
|
||||||
/////////////////////////////////////////////////////////////////////
|
|
||||||
//
|
|
||||||
// AVS_VideoInfo
|
|
||||||
//
|
|
||||||
|
|
||||||
// AVS_VideoInfo is layed out identicly to VideoInfo
|
|
||||||
typedef struct AVS_VideoInfo {
|
|
||||||
int width, height; // width=0 means no video
|
|
||||||
unsigned fps_numerator, fps_denominator;
|
|
||||||
int num_frames;
|
|
||||||
|
|
||||||
int pixel_type;
|
|
||||||
|
|
||||||
int audio_samples_per_second; // 0 means no audio
|
|
||||||
int sample_type;
|
|
||||||
INT64 num_audio_samples;
|
|
||||||
int nchannels;
|
|
||||||
|
|
||||||
// Imagetype properties
|
|
||||||
|
|
||||||
int image_type;
|
|
||||||
} AVS_VideoInfo;
|
|
||||||
|
|
||||||
// useful functions of the above
|
|
||||||
AVSC_INLINE int avs_has_video(const AVS_VideoInfo * p)
|
|
||||||
{ return (p->width!=0); }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_has_audio(const AVS_VideoInfo * p)
|
|
||||||
{ return (p->audio_samples_per_second!=0); }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_is_rgb(const AVS_VideoInfo * p)
|
|
||||||
{ return !!(p->pixel_type&AVS_CS_BGR); }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_is_rgb24(const AVS_VideoInfo * p)
|
|
||||||
{ return (p->pixel_type&AVS_CS_BGR24)==AVS_CS_BGR24; } // Clear out additional properties
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_is_rgb32(const AVS_VideoInfo * p)
|
|
||||||
{ return (p->pixel_type & AVS_CS_BGR32) == AVS_CS_BGR32 ; }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_is_yuv(const AVS_VideoInfo * p)
|
|
||||||
{ return !!(p->pixel_type&AVS_CS_YUV ); }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_is_yuy2(const AVS_VideoInfo * p)
|
|
||||||
{ return (p->pixel_type & AVS_CS_YUY2) == AVS_CS_YUY2; }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_is_yv24(const AVS_VideoInfo * p)
|
|
||||||
{ return (p->pixel_type & AVS_CS_PLANAR_MASK) == (AVS_CS_YV24 & AVS_CS_PLANAR_FILTER); }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_is_yv16(const AVS_VideoInfo * p)
|
|
||||||
{ return (p->pixel_type & AVS_CS_PLANAR_MASK) == (AVS_CS_YV16 & AVS_CS_PLANAR_FILTER); }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_is_yv12(const AVS_VideoInfo * p)
|
|
||||||
{ return (p->pixel_type & AVS_CS_PLANAR_MASK) == (AVS_CS_YV12 & AVS_CS_PLANAR_FILTER); }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_is_yv411(const AVS_VideoInfo * p)
|
|
||||||
{ return (p->pixel_type & AVS_CS_PLANAR_MASK) == (AVS_CS_YV411 & AVS_CS_PLANAR_FILTER); }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_is_y8(const AVS_VideoInfo * p)
|
|
||||||
{ return (p->pixel_type & AVS_CS_PLANAR_MASK) == (AVS_CS_Y8 & AVS_CS_PLANAR_FILTER); }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_is_property(const AVS_VideoInfo * p, int property)
|
|
||||||
{ return ((p->pixel_type & property)==property ); }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_is_planar(const AVS_VideoInfo * p)
|
|
||||||
{ return !!(p->pixel_type & AVS_CS_PLANAR); }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_is_color_space(const AVS_VideoInfo * p, int c_space)
|
|
||||||
{ return avs_is_planar(p) ? ((p->pixel_type & AVS_CS_PLANAR_MASK) == (c_space & AVS_CS_PLANAR_FILTER)) : ((p->pixel_type & c_space) == c_space); }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_is_field_based(const AVS_VideoInfo * p)
|
|
||||||
{ return !!(p->image_type & AVS_IT_FIELDBASED); }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_is_parity_known(const AVS_VideoInfo * p)
|
|
||||||
{ return ((p->image_type & AVS_IT_FIELDBASED)&&(p->image_type & (AVS_IT_BFF | AVS_IT_TFF))); }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_is_bff(const AVS_VideoInfo * p)
|
|
||||||
{ return !!(p->image_type & AVS_IT_BFF); }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_is_tff(const AVS_VideoInfo * p)
|
|
||||||
{ return !!(p->image_type & AVS_IT_TFF); }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_bits_per_pixel(const AVS_VideoInfo * p)
|
|
||||||
{
|
|
||||||
switch (p->pixel_type) {
|
|
||||||
case AVS_CS_BGR24: return 24;
|
|
||||||
case AVS_CS_BGR32: return 32;
|
|
||||||
case AVS_CS_YUY2: return 16;
|
|
||||||
case AVS_CS_YV12:
|
|
||||||
case AVS_CS_I420: return 12;
|
|
||||||
default: return 0;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
AVSC_INLINE int avs_bytes_from_pixels(const AVS_VideoInfo * p, int pixels)
|
|
||||||
{ return pixels * (avs_bits_per_pixel(p)>>3); } // Will work on planar images, but will return only luma planes
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_row_size(const AVS_VideoInfo * p)
|
|
||||||
{ return avs_bytes_from_pixels(p,p->width); } // Also only returns first plane on planar images
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_bmp_size(const AVS_VideoInfo * vi)
|
|
||||||
{ if (avs_is_planar(vi)) {int p = vi->height * ((avs_row_size(vi)+3) & ~3); p+=p>>1; return p; } return vi->height * ((avs_row_size(vi)+3) & ~3); }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_samples_per_second(const AVS_VideoInfo * p)
|
|
||||||
{ return p->audio_samples_per_second; }
|
|
||||||
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_bytes_per_channel_sample(const AVS_VideoInfo * p)
|
|
||||||
{
|
|
||||||
switch (p->sample_type) {
|
|
||||||
case AVS_SAMPLE_INT8: return sizeof(signed char);
|
|
||||||
case AVS_SAMPLE_INT16: return sizeof(signed short);
|
|
||||||
case AVS_SAMPLE_INT24: return 3;
|
|
||||||
case AVS_SAMPLE_INT32: return sizeof(signed int);
|
|
||||||
case AVS_SAMPLE_FLOAT: return sizeof(float);
|
|
||||||
default: return 0;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
AVSC_INLINE int avs_bytes_per_audio_sample(const AVS_VideoInfo * p)
|
|
||||||
{ return p->nchannels*avs_bytes_per_channel_sample(p);}
|
|
||||||
|
|
||||||
AVSC_INLINE INT64 avs_audio_samples_from_frames(const AVS_VideoInfo * p, INT64 frames)
|
|
||||||
{ return ((INT64)(frames) * p->audio_samples_per_second * p->fps_denominator / p->fps_numerator); }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_frames_from_audio_samples(const AVS_VideoInfo * p, INT64 samples)
|
|
||||||
{ return (int)(samples * (INT64)p->fps_numerator / (INT64)p->fps_denominator / (INT64)p->audio_samples_per_second); }
|
|
||||||
|
|
||||||
AVSC_INLINE INT64 avs_audio_samples_from_bytes(const AVS_VideoInfo * p, INT64 bytes)
|
|
||||||
{ return bytes / avs_bytes_per_audio_sample(p); }
|
|
||||||
|
|
||||||
AVSC_INLINE INT64 avs_bytes_from_audio_samples(const AVS_VideoInfo * p, INT64 samples)
|
|
||||||
{ return samples * avs_bytes_per_audio_sample(p); }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_audio_channels(const AVS_VideoInfo * p)
|
|
||||||
{ return p->nchannels; }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_sample_type(const AVS_VideoInfo * p)
|
|
||||||
{ return p->sample_type;}
|
|
||||||
|
|
||||||
// useful mutator
|
|
||||||
AVSC_INLINE void avs_set_property(AVS_VideoInfo * p, int property)
|
|
||||||
{ p->image_type|=property; }
|
|
||||||
|
|
||||||
AVSC_INLINE void avs_clear_property(AVS_VideoInfo * p, int property)
|
|
||||||
{ p->image_type&=~property; }
|
|
||||||
|
|
||||||
AVSC_INLINE void avs_set_field_based(AVS_VideoInfo * p, int isfieldbased)
|
|
||||||
{ if (isfieldbased) p->image_type|=AVS_IT_FIELDBASED; else p->image_type&=~AVS_IT_FIELDBASED; }
|
|
||||||
|
|
||||||
AVSC_INLINE void avs_set_fps(AVS_VideoInfo * p, unsigned numerator, unsigned denominator)
|
|
||||||
{
|
|
||||||
unsigned x=numerator, y=denominator;
|
|
||||||
while (y) { // find gcd
|
|
||||||
unsigned t = x%y; x = y; y = t;
|
|
||||||
}
|
|
||||||
p->fps_numerator = numerator/x;
|
|
||||||
p->fps_denominator = denominator/x;
|
|
||||||
}
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_is_same_colorspace(AVS_VideoInfo * x, AVS_VideoInfo * y)
|
|
||||||
{
|
|
||||||
return (x->pixel_type == y->pixel_type)
|
|
||||||
|| (avs_is_yv12(x) && avs_is_yv12(y));
|
|
||||||
}
|
|
||||||
|
|
||||||
/////////////////////////////////////////////////////////////////////
|
|
||||||
//
|
|
||||||
// AVS_VideoFrame
|
|
||||||
//
|
|
||||||
|
|
||||||
// VideoFrameBuffer holds information about a memory block which is used
|
|
||||||
// for video data. For efficiency, instances of this class are not deleted
|
|
||||||
// when the refcount reaches zero; instead they're stored in a linked list
|
|
||||||
// to be reused. The instances are deleted when the corresponding AVS
|
|
||||||
// file is closed.
|
|
||||||
|
|
||||||
// AVS_VideoFrameBuffer is layed out identicly to VideoFrameBuffer
|
|
||||||
// DO NOT USE THIS STRUCTURE DIRECTLY
|
|
||||||
typedef struct AVS_VideoFrameBuffer {
|
|
||||||
BYTE * data;
|
|
||||||
int data_size;
|
|
||||||
// sequence_number is incremented every time the buffer is changed, so
|
|
||||||
// that stale views can tell they're no longer valid.
|
|
||||||
volatile long sequence_number;
|
|
||||||
|
|
||||||
volatile long refcount;
|
|
||||||
} AVS_VideoFrameBuffer;
|
|
||||||
|
|
||||||
// VideoFrame holds a "window" into a VideoFrameBuffer.
|
|
||||||
|
|
||||||
// AVS_VideoFrame is layed out identicly to IVideoFrame
|
|
||||||
// DO NOT USE THIS STRUCTURE DIRECTLY
|
|
||||||
typedef struct AVS_VideoFrame {
|
|
||||||
volatile long refcount;
|
|
||||||
AVS_VideoFrameBuffer * vfb;
|
|
||||||
int offset, pitch, row_size, height, offsetU, offsetV, pitchUV; // U&V offsets are from top of picture.
|
|
||||||
int row_sizeUV, heightUV;
|
|
||||||
} AVS_VideoFrame;
|
|
||||||
|
|
||||||
// Access functions for AVS_VideoFrame
|
|
||||||
AVSC_INLINE int avs_get_pitch(const AVS_VideoFrame * p) {
|
|
||||||
return p->pitch;}
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_get_pitch_p(const AVS_VideoFrame * p, int plane) {
|
|
||||||
switch (plane) {
|
|
||||||
case AVS_PLANAR_U: case AVS_PLANAR_V: return p->pitchUV;}
|
|
||||||
return p->pitch;}
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_get_row_size(const AVS_VideoFrame * p) {
|
|
||||||
return p->row_size; }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_get_row_size_p(const AVS_VideoFrame * p, int plane) {
|
|
||||||
int r;
|
|
||||||
switch (plane) {
|
|
||||||
case AVS_PLANAR_U: case AVS_PLANAR_V:
|
|
||||||
if (p->pitchUV) return p->row_sizeUV;
|
|
||||||
else return 0;
|
|
||||||
case AVS_PLANAR_U_ALIGNED: case AVS_PLANAR_V_ALIGNED:
|
|
||||||
if (p->pitchUV) {
|
|
||||||
r = (p->row_sizeUV+AVS_FRAME_ALIGN-1)&(~(AVS_FRAME_ALIGN-1)); // Aligned rowsize
|
|
||||||
if (r < p->pitchUV)
|
|
||||||
return r;
|
|
||||||
return p->row_sizeUV;
|
|
||||||
} else return 0;
|
|
||||||
case AVS_PLANAR_Y_ALIGNED:
|
|
||||||
r = (p->row_size+AVS_FRAME_ALIGN-1)&(~(AVS_FRAME_ALIGN-1)); // Aligned rowsize
|
|
||||||
if (r <= p->pitch)
|
|
||||||
return r;
|
|
||||||
return p->row_size;
|
|
||||||
}
|
|
||||||
return p->row_size;
|
|
||||||
}
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_get_height(const AVS_VideoFrame * p) {
|
|
||||||
return p->height;}
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_get_height_p(const AVS_VideoFrame * p, int plane) {
|
|
||||||
switch (plane) {
|
|
||||||
case AVS_PLANAR_U: case AVS_PLANAR_V:
|
|
||||||
if (p->pitchUV) return p->heightUV;
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
return p->height;}
|
|
||||||
|
|
||||||
AVSC_INLINE const BYTE* avs_get_read_ptr(const AVS_VideoFrame * p) {
|
|
||||||
return p->vfb->data + p->offset;}
|
|
||||||
|
|
||||||
AVSC_INLINE const BYTE* avs_get_read_ptr_p(const AVS_VideoFrame * p, int plane)
|
|
||||||
{
|
|
||||||
switch (plane) {
|
|
||||||
case AVS_PLANAR_U: return p->vfb->data + p->offsetU;
|
|
||||||
case AVS_PLANAR_V: return p->vfb->data + p->offsetV;
|
|
||||||
default: return p->vfb->data + p->offset;}
|
|
||||||
}
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_is_writable(const AVS_VideoFrame * p) {
|
|
||||||
return (p->refcount == 1 && p->vfb->refcount == 1);}
|
|
||||||
|
|
||||||
AVSC_INLINE BYTE* avs_get_write_ptr(const AVS_VideoFrame * p)
|
|
||||||
{
|
|
||||||
if (avs_is_writable(p)) {
|
|
||||||
++p->vfb->sequence_number;
|
|
||||||
return p->vfb->data + p->offset;
|
|
||||||
} else
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
AVSC_INLINE BYTE* avs_get_write_ptr_p(const AVS_VideoFrame * p, int plane)
|
|
||||||
{
|
|
||||||
if (plane==AVS_PLANAR_Y && avs_is_writable(p)) {
|
|
||||||
++p->vfb->sequence_number;
|
|
||||||
return p->vfb->data + p->offset;
|
|
||||||
} else if (plane==AVS_PLANAR_Y) {
|
|
||||||
return 0;
|
|
||||||
} else {
|
|
||||||
switch (plane) {
|
|
||||||
case AVS_PLANAR_U: return p->vfb->data + p->offsetU;
|
|
||||||
case AVS_PLANAR_V: return p->vfb->data + p->offsetV;
|
|
||||||
default: return p->vfb->data + p->offset;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
AVSC_API(void, avs_release_video_frame)(AVS_VideoFrame *);
|
|
||||||
// makes a shallow copy of a video frame
|
|
||||||
AVSC_API(AVS_VideoFrame *, avs_copy_video_frame)(AVS_VideoFrame *);
|
|
||||||
|
|
||||||
#ifndef AVSC_NO_DECLSPEC
|
|
||||||
AVSC_INLINE void avs_release_frame(AVS_VideoFrame * f)
|
|
||||||
{avs_release_video_frame(f);}
|
|
||||||
AVSC_INLINE AVS_VideoFrame * avs_copy_frame(AVS_VideoFrame * f)
|
|
||||||
{return avs_copy_video_frame(f);}
|
|
||||||
#endif
|
|
||||||
|
|
||||||
/////////////////////////////////////////////////////////////////////
|
|
||||||
//
|
|
||||||
// AVS_Value
|
|
||||||
//
|
|
||||||
|
|
||||||
// Treat AVS_Value as a fat pointer. That is use avs_copy_value
|
|
||||||
// and avs_release_value appropiaty as you would if AVS_Value was
|
|
||||||
// a pointer.
|
|
||||||
|
|
||||||
// To maintain source code compatibility with future versions of the
|
|
||||||
// avisynth_c API don't use the AVS_Value directly. Use the helper
|
|
||||||
// functions below.
|
|
||||||
|
|
||||||
// AVS_Value is layed out identicly to AVSValue
|
|
||||||
typedef struct AVS_Value AVS_Value;
|
|
||||||
struct AVS_Value {
|
|
||||||
short type; // 'a'rray, 'c'lip, 'b'ool, 'i'nt, 'f'loat, 's'tring, 'v'oid, or 'l'ong
|
|
||||||
// for some function e'rror
|
|
||||||
short array_size;
|
|
||||||
union {
|
|
||||||
void * clip; // do not use directly, use avs_take_clip
|
|
||||||
char boolean;
|
|
||||||
int integer;
|
|
||||||
float floating_pt;
|
|
||||||
const char * string;
|
|
||||||
const AVS_Value * array;
|
|
||||||
} d;
|
|
||||||
};
|
|
||||||
|
|
||||||
// AVS_Value should be initilized with avs_void.
|
|
||||||
// Should also set to avs_void after the value is released
|
|
||||||
// with avs_copy_value. Consider it the equalvent of setting
|
|
||||||
// a pointer to NULL
|
|
||||||
static const AVS_Value avs_void = {'v'};
|
|
||||||
|
|
||||||
AVSC_API(void, avs_copy_value)(AVS_Value * dest, AVS_Value src);
|
|
||||||
AVSC_API(void, avs_release_value)(AVS_Value);
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_defined(AVS_Value v) { return v.type != 'v'; }
|
|
||||||
AVSC_INLINE int avs_is_clip(AVS_Value v) { return v.type == 'c'; }
|
|
||||||
AVSC_INLINE int avs_is_bool(AVS_Value v) { return v.type == 'b'; }
|
|
||||||
AVSC_INLINE int avs_is_int(AVS_Value v) { return v.type == 'i'; }
|
|
||||||
AVSC_INLINE int avs_is_float(AVS_Value v) { return v.type == 'f' || v.type == 'i'; }
|
|
||||||
AVSC_INLINE int avs_is_string(AVS_Value v) { return v.type == 's'; }
|
|
||||||
AVSC_INLINE int avs_is_array(AVS_Value v) { return v.type == 'a'; }
|
|
||||||
AVSC_INLINE int avs_is_error(AVS_Value v) { return v.type == 'e'; }
|
|
||||||
|
|
||||||
AVSC_API(AVS_Clip *, avs_take_clip)(AVS_Value, AVS_ScriptEnvironment *);
|
|
||||||
AVSC_API(void, avs_set_to_clip)(AVS_Value *, AVS_Clip *);
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_as_bool(AVS_Value v)
|
|
||||||
{ return v.d.boolean; }
|
|
||||||
AVSC_INLINE int avs_as_int(AVS_Value v)
|
|
||||||
{ return v.d.integer; }
|
|
||||||
AVSC_INLINE const char * avs_as_string(AVS_Value v)
|
|
||||||
{ return avs_is_error(v) || avs_is_string(v) ? v.d.string : 0; }
|
|
||||||
AVSC_INLINE double avs_as_float(AVS_Value v)
|
|
||||||
{ return avs_is_int(v) ? v.d.integer : v.d.floating_pt; }
|
|
||||||
AVSC_INLINE const char * avs_as_error(AVS_Value v)
|
|
||||||
{ return avs_is_error(v) ? v.d.string : 0; }
|
|
||||||
AVSC_INLINE const AVS_Value * avs_as_array(AVS_Value v)
|
|
||||||
{ return v.d.array; }
|
|
||||||
AVSC_INLINE int avs_array_size(AVS_Value v)
|
|
||||||
{ return avs_is_array(v) ? v.array_size : 1; }
|
|
||||||
AVSC_INLINE AVS_Value avs_array_elt(AVS_Value v, int index)
|
|
||||||
{ return avs_is_array(v) ? v.d.array[index] : v; }
|
|
||||||
|
|
||||||
// only use these functions on an AVS_Value that does not already have
|
|
||||||
// an active value. Remember, treat AVS_Value as a fat pointer.
|
|
||||||
AVSC_INLINE AVS_Value avs_new_value_bool(int v0)
|
|
||||||
{ AVS_Value v; v.type = 'b'; v.d.boolean = v0 == 0 ? 0 : 1; return v; }
|
|
||||||
AVSC_INLINE AVS_Value avs_new_value_int(int v0)
|
|
||||||
{ AVS_Value v; v.type = 'i'; v.d.integer = v0; return v; }
|
|
||||||
AVSC_INLINE AVS_Value avs_new_value_string(const char * v0)
|
|
||||||
{ AVS_Value v; v.type = 's'; v.d.string = v0; return v; }
|
|
||||||
AVSC_INLINE AVS_Value avs_new_value_float(float v0)
|
|
||||||
{ AVS_Value v; v.type = 'f'; v.d.floating_pt = v0; return v;}
|
|
||||||
AVSC_INLINE AVS_Value avs_new_value_error(const char * v0)
|
|
||||||
{ AVS_Value v; v.type = 'e'; v.d.string = v0; return v; }
|
|
||||||
#ifndef AVSC_NO_DECLSPEC
|
|
||||||
AVSC_INLINE AVS_Value avs_new_value_clip(AVS_Clip * v0)
|
|
||||||
{ AVS_Value v; avs_set_to_clip(&v, v0); return v; }
|
|
||||||
#endif
|
|
||||||
AVSC_INLINE AVS_Value avs_new_value_array(AVS_Value * v0, int size)
|
|
||||||
{ AVS_Value v; v.type = 'a'; v.d.array = v0; v.array_size = size; return v; }
|
|
||||||
|
|
||||||
/////////////////////////////////////////////////////////////////////
|
|
||||||
//
|
|
||||||
// AVS_Clip
|
|
||||||
//
|
|
||||||
|
|
||||||
AVSC_API(void, avs_release_clip)(AVS_Clip *);
|
|
||||||
AVSC_API(AVS_Clip *, avs_copy_clip)(AVS_Clip *);
|
|
||||||
|
|
||||||
AVSC_API(const char *, avs_clip_get_error)(AVS_Clip *); // return 0 if no error
|
|
||||||
|
|
||||||
AVSC_API(const AVS_VideoInfo *, avs_get_video_info)(AVS_Clip *);
|
|
||||||
|
|
||||||
AVSC_API(int, avs_get_version)(AVS_Clip *);
|
|
||||||
|
|
||||||
AVSC_API(AVS_VideoFrame *, avs_get_frame)(AVS_Clip *, int n);
|
|
||||||
// The returned video frame must be released with avs_release_video_frame
|
|
||||||
|
|
||||||
AVSC_API(int, avs_get_parity)(AVS_Clip *, int n);
|
|
||||||
// return field parity if field_based, else parity of first field in frame
|
|
||||||
|
|
||||||
AVSC_API(int, avs_get_audio)(AVS_Clip *, void * buf,
|
|
||||||
INT64 start, INT64 count);
|
|
||||||
// start and count are in samples
|
|
||||||
|
|
||||||
AVSC_API(int, avs_set_cache_hints)(AVS_Clip *,
|
|
||||||
int cachehints, int frame_range);
|
|
||||||
|
|
||||||
// This is the callback type used by avs_add_function
|
|
||||||
typedef AVS_Value (AVSC_CC * AVS_ApplyFunc)
|
|
||||||
(AVS_ScriptEnvironment *, AVS_Value args, void * user_data);
|
|
||||||
|
|
||||||
typedef struct AVS_FilterInfo AVS_FilterInfo;
|
|
||||||
struct AVS_FilterInfo
|
|
||||||
{
|
|
||||||
// these members should not be modified outside of the AVS_ApplyFunc callback
|
|
||||||
AVS_Clip * child;
|
|
||||||
AVS_VideoInfo vi;
|
|
||||||
AVS_ScriptEnvironment * env;
|
|
||||||
AVS_VideoFrame * (AVSC_CC * get_frame)(AVS_FilterInfo *, int n);
|
|
||||||
int (AVSC_CC * get_parity)(AVS_FilterInfo *, int n);
|
|
||||||
int (AVSC_CC * get_audio)(AVS_FilterInfo *, void * buf,
|
|
||||||
INT64 start, INT64 count);
|
|
||||||
int (AVSC_CC * set_cache_hints)(AVS_FilterInfo *, int cachehints,
|
|
||||||
int frame_range);
|
|
||||||
void (AVSC_CC * free_filter)(AVS_FilterInfo *);
|
|
||||||
|
|
||||||
// Should be set when ever there is an error to report.
|
|
||||||
// It is cleared before any of the above methods are called
|
|
||||||
const char * error;
|
|
||||||
// this is to store whatever and may be modified at will
|
|
||||||
void * user_data;
|
|
||||||
};
|
|
||||||
|
|
||||||
// Create a new filter
|
|
||||||
// fi is set to point to the AVS_FilterInfo so that you can
|
|
||||||
// modify it once it is initilized.
|
|
||||||
// store_child should generally be set to true. If it is not
|
|
||||||
// set than ALL methods (the function pointers) must be defined
|
|
||||||
// If it is set than you do not need to worry about freeing the child
|
|
||||||
// clip.
|
|
||||||
AVSC_API(AVS_Clip *, avs_new_c_filter)(AVS_ScriptEnvironment * e,
|
|
||||||
AVS_FilterInfo * * fi,
|
|
||||||
AVS_Value child, int store_child);
|
|
||||||
|
|
||||||
/////////////////////////////////////////////////////////////////////
|
|
||||||
//
|
|
||||||
// AVS_ScriptEnvironment
|
|
||||||
//
|
|
||||||
|
|
||||||
// For GetCPUFlags. These are backwards-compatible with those in VirtualDub.
|
|
||||||
enum {
|
|
||||||
/* slowest CPU to support extension */
|
|
||||||
AVS_CPU_FORCE = 0x01, // N/A
|
|
||||||
AVS_CPU_FPU = 0x02, // 386/486DX
|
|
||||||
AVS_CPU_MMX = 0x04, // P55C, K6, PII
|
|
||||||
AVS_CPU_INTEGER_SSE = 0x08, // PIII, Athlon
|
|
||||||
AVS_CPU_SSE = 0x10, // PIII, Athlon XP/MP
|
|
||||||
AVS_CPU_SSE2 = 0x20, // PIV, Hammer
|
|
||||||
AVS_CPU_3DNOW = 0x40, // K6-2
|
|
||||||
AVS_CPU_3DNOW_EXT = 0x80, // Athlon
|
|
||||||
AVS_CPU_X86_64 = 0xA0, // Hammer (note: equiv. to 3DNow + SSE2,
|
|
||||||
// which only Hammer will have anyway)
|
|
||||||
AVS_CPUF_SSE3 = 0x100, // PIV+, K8 Venice
|
|
||||||
AVS_CPUF_SSSE3 = 0x200, // Core 2
|
|
||||||
AVS_CPUF_SSE4 = 0x400, // Penryn, Wolfdale, Yorkfield
|
|
||||||
AVS_CPUF_SSE4_1 = 0x400,
|
|
||||||
AVS_CPUF_SSE4_2 = 0x800, // Nehalem
|
|
||||||
};
|
|
||||||
|
|
||||||
AVSC_API(const char *, avs_get_error)(AVS_ScriptEnvironment *); // return 0 if no error
|
|
||||||
|
|
||||||
AVSC_API(long, avs_get_cpu_flags)(AVS_ScriptEnvironment *);
|
|
||||||
AVSC_API(int, avs_check_version)(AVS_ScriptEnvironment *, int version);
|
|
||||||
|
|
||||||
AVSC_API(char *, avs_save_string)(AVS_ScriptEnvironment *, const char* s, int length);
|
|
||||||
AVSC_API(char *, avs_sprintf)(AVS_ScriptEnvironment *, const char * fmt, ...);
|
|
||||||
|
|
||||||
AVSC_API(char *, avs_vsprintf)(AVS_ScriptEnvironment *, const char * fmt, void* val);
|
|
||||||
// note: val is really a va_list; I hope everyone typedefs va_list to a pointer
|
|
||||||
|
|
||||||
AVSC_API(int, avs_add_function)(AVS_ScriptEnvironment *,
|
|
||||||
const char * name, const char * params,
|
|
||||||
AVS_ApplyFunc apply, void * user_data);
|
|
||||||
|
|
||||||
AVSC_API(int, avs_function_exists)(AVS_ScriptEnvironment *, const char * name);
|
|
||||||
|
|
||||||
AVSC_API(AVS_Value, avs_invoke)(AVS_ScriptEnvironment *, const char * name,
|
|
||||||
AVS_Value args, const char** arg_names);
|
|
||||||
// The returned value must be be released with avs_release_value
|
|
||||||
|
|
||||||
AVSC_API(AVS_Value, avs_get_var)(AVS_ScriptEnvironment *, const char* name);
|
|
||||||
// The returned value must be be released with avs_release_value
|
|
||||||
|
|
||||||
AVSC_API(int, avs_set_var)(AVS_ScriptEnvironment *, const char* name, AVS_Value val);
|
|
||||||
|
|
||||||
AVSC_API(int, avs_set_global_var)(AVS_ScriptEnvironment *, const char* name, const AVS_Value val);
|
|
||||||
|
|
||||||
//void avs_push_context(AVS_ScriptEnvironment *, int level=0);
|
|
||||||
//void avs_pop_context(AVS_ScriptEnvironment *);
|
|
||||||
|
|
||||||
AVSC_API(AVS_VideoFrame *, avs_new_video_frame_a)(AVS_ScriptEnvironment *,
|
|
||||||
const AVS_VideoInfo * vi, int align);
|
|
||||||
// align should be at least 16
|
|
||||||
|
|
||||||
#ifndef AVSC_NO_DECLSPEC
|
|
||||||
AVSC_INLINE
|
|
||||||
AVS_VideoFrame * avs_new_video_frame(AVS_ScriptEnvironment * env,
|
|
||||||
const AVS_VideoInfo * vi)
|
|
||||||
{return avs_new_video_frame_a(env,vi,AVS_FRAME_ALIGN);}
|
|
||||||
|
|
||||||
AVSC_INLINE
|
|
||||||
AVS_VideoFrame * avs_new_frame(AVS_ScriptEnvironment * env,
|
|
||||||
const AVS_VideoInfo * vi)
|
|
||||||
{return avs_new_video_frame_a(env,vi,AVS_FRAME_ALIGN);}
|
|
||||||
#endif
|
|
||||||
|
|
||||||
|
|
||||||
AVSC_API(int, avs_make_writable)(AVS_ScriptEnvironment *, AVS_VideoFrame * * pvf);
|
|
||||||
|
|
||||||
AVSC_API(void, avs_bit_blt)(AVS_ScriptEnvironment *, BYTE* dstp, int dst_pitch, const BYTE* srcp, int src_pitch, int row_size, int height);
|
|
||||||
|
|
||||||
typedef void (AVSC_CC *AVS_ShutdownFunc)(void* user_data, AVS_ScriptEnvironment * env);
|
|
||||||
AVSC_API(void, avs_at_exit)(AVS_ScriptEnvironment *, AVS_ShutdownFunc function, void * user_data);
|
|
||||||
|
|
||||||
AVSC_API(AVS_VideoFrame *, avs_subframe)(AVS_ScriptEnvironment *, AVS_VideoFrame * src, int rel_offset, int new_pitch, int new_row_size, int new_height);
|
|
||||||
// The returned video frame must be be released
|
|
||||||
|
|
||||||
AVSC_API(int, avs_set_memory_max)(AVS_ScriptEnvironment *, int mem);
|
|
||||||
|
|
||||||
AVSC_API(int, avs_set_working_dir)(AVS_ScriptEnvironment *, const char * newdir);
|
|
||||||
|
|
||||||
// avisynth.dll exports this; it's a way to use it as a library, without
|
|
||||||
// writing an AVS script or without going through AVIFile.
|
|
||||||
AVSC_API(AVS_ScriptEnvironment *, avs_create_script_environment)(int version);
|
|
||||||
|
|
||||||
// this symbol is the entry point for the plugin and must
|
|
||||||
// be defined
|
|
||||||
AVSC_EXPORT
|
|
||||||
const char * AVSC_CC avisynth_c_plugin_init(AVS_ScriptEnvironment* env);
|
|
||||||
|
|
||||||
|
|
||||||
AVSC_API(void, avs_delete_script_environment)(AVS_ScriptEnvironment *);
|
|
||||||
|
|
||||||
|
|
||||||
AVSC_API(AVS_VideoFrame *, avs_subframe_planar)(AVS_ScriptEnvironment *, AVS_VideoFrame * src, int rel_offset, int new_pitch, int new_row_size, int new_height, int rel_offsetU, int rel_offsetV, int new_pitchUV);
|
|
||||||
// The returned video frame must be be released
|
|
||||||
|
|
||||||
#ifdef AVSC_NO_DECLSPEC
|
|
||||||
// use LoadLibrary and related functions to dynamically load Avisynth instead of declspec(dllimport)
|
|
||||||
/*
|
|
||||||
The following functions needs to have been declared, probably from windows.h
|
|
||||||
|
|
||||||
void* malloc(size_t)
|
|
||||||
void free(void*);
|
|
||||||
|
|
||||||
HMODULE LoadLibrary(const char*);
|
|
||||||
void* GetProcAddress(HMODULE, const char*);
|
|
||||||
FreeLibrary(HMODULE);
|
|
||||||
*/
|
|
||||||
|
|
||||||
|
|
||||||
typedef struct AVS_Library AVS_Library;
|
|
||||||
|
|
||||||
#define AVSC_DECLARE_FUNC(name) name##_func name
|
|
||||||
|
|
||||||
struct AVS_Library {
|
|
||||||
HMODULE handle;
|
|
||||||
|
|
||||||
AVSC_DECLARE_FUNC(avs_add_function);
|
|
||||||
AVSC_DECLARE_FUNC(avs_at_exit);
|
|
||||||
AVSC_DECLARE_FUNC(avs_bit_blt);
|
|
||||||
AVSC_DECLARE_FUNC(avs_check_version);
|
|
||||||
AVSC_DECLARE_FUNC(avs_clip_get_error);
|
|
||||||
AVSC_DECLARE_FUNC(avs_copy_clip);
|
|
||||||
AVSC_DECLARE_FUNC(avs_copy_value);
|
|
||||||
AVSC_DECLARE_FUNC(avs_copy_video_frame);
|
|
||||||
AVSC_DECLARE_FUNC(avs_create_script_environment);
|
|
||||||
AVSC_DECLARE_FUNC(avs_delete_script_environment);
|
|
||||||
AVSC_DECLARE_FUNC(avs_function_exists);
|
|
||||||
AVSC_DECLARE_FUNC(avs_get_audio);
|
|
||||||
AVSC_DECLARE_FUNC(avs_get_cpu_flags);
|
|
||||||
AVSC_DECLARE_FUNC(avs_get_error);
|
|
||||||
AVSC_DECLARE_FUNC(avs_get_frame);
|
|
||||||
AVSC_DECLARE_FUNC(avs_get_parity);
|
|
||||||
AVSC_DECLARE_FUNC(avs_get_var);
|
|
||||||
AVSC_DECLARE_FUNC(avs_get_version);
|
|
||||||
AVSC_DECLARE_FUNC(avs_get_video_info);
|
|
||||||
AVSC_DECLARE_FUNC(avs_invoke);
|
|
||||||
AVSC_DECLARE_FUNC(avs_make_writable);
|
|
||||||
AVSC_DECLARE_FUNC(avs_new_c_filter);
|
|
||||||
AVSC_DECLARE_FUNC(avs_new_video_frame_a);
|
|
||||||
AVSC_DECLARE_FUNC(avs_release_clip);
|
|
||||||
AVSC_DECLARE_FUNC(avs_release_value);
|
|
||||||
AVSC_DECLARE_FUNC(avs_release_video_frame);
|
|
||||||
AVSC_DECLARE_FUNC(avs_save_string);
|
|
||||||
AVSC_DECLARE_FUNC(avs_set_cache_hints);
|
|
||||||
AVSC_DECLARE_FUNC(avs_set_global_var);
|
|
||||||
AVSC_DECLARE_FUNC(avs_set_memory_max);
|
|
||||||
AVSC_DECLARE_FUNC(avs_set_to_clip);
|
|
||||||
AVSC_DECLARE_FUNC(avs_set_var);
|
|
||||||
AVSC_DECLARE_FUNC(avs_set_working_dir);
|
|
||||||
AVSC_DECLARE_FUNC(avs_sprintf);
|
|
||||||
AVSC_DECLARE_FUNC(avs_subframe);
|
|
||||||
AVSC_DECLARE_FUNC(avs_subframe_planar);
|
|
||||||
AVSC_DECLARE_FUNC(avs_take_clip);
|
|
||||||
AVSC_DECLARE_FUNC(avs_vsprintf);
|
|
||||||
};
|
|
||||||
|
|
||||||
#undef AVSC_DECLARE_FUNC
|
|
||||||
|
|
||||||
|
|
||||||
AVSC_INLINE AVS_Library * avs_load_library() {
|
|
||||||
AVS_Library *library = (AVS_Library *)malloc(sizeof(AVS_Library));
|
|
||||||
if (library == NULL)
|
|
||||||
return NULL;
|
|
||||||
library->handle = LoadLibrary("avisynth");
|
|
||||||
if (library->handle == NULL)
|
|
||||||
goto fail;
|
|
||||||
|
|
||||||
#define __AVSC_STRINGIFY(x) #x
|
|
||||||
#define AVSC_STRINGIFY(x) __AVSC_STRINGIFY(x)
|
|
||||||
#define AVSC_LOAD_FUNC(name) {\
|
|
||||||
library->name = (name##_func) GetProcAddress(library->handle, AVSC_STRINGIFY(name));\
|
|
||||||
if (library->name == NULL)\
|
|
||||||
goto fail;\
|
|
||||||
}
|
|
||||||
|
|
||||||
AVSC_LOAD_FUNC(avs_add_function);
|
|
||||||
AVSC_LOAD_FUNC(avs_at_exit);
|
|
||||||
AVSC_LOAD_FUNC(avs_bit_blt);
|
|
||||||
AVSC_LOAD_FUNC(avs_check_version);
|
|
||||||
AVSC_LOAD_FUNC(avs_clip_get_error);
|
|
||||||
AVSC_LOAD_FUNC(avs_copy_clip);
|
|
||||||
AVSC_LOAD_FUNC(avs_copy_value);
|
|
||||||
AVSC_LOAD_FUNC(avs_copy_video_frame);
|
|
||||||
AVSC_LOAD_FUNC(avs_create_script_environment);
|
|
||||||
AVSC_LOAD_FUNC(avs_delete_script_environment);
|
|
||||||
AVSC_LOAD_FUNC(avs_function_exists);
|
|
||||||
AVSC_LOAD_FUNC(avs_get_audio);
|
|
||||||
AVSC_LOAD_FUNC(avs_get_cpu_flags);
|
|
||||||
AVSC_LOAD_FUNC(avs_get_error);
|
|
||||||
AVSC_LOAD_FUNC(avs_get_frame);
|
|
||||||
AVSC_LOAD_FUNC(avs_get_parity);
|
|
||||||
AVSC_LOAD_FUNC(avs_get_var);
|
|
||||||
AVSC_LOAD_FUNC(avs_get_version);
|
|
||||||
AVSC_LOAD_FUNC(avs_get_video_info);
|
|
||||||
AVSC_LOAD_FUNC(avs_invoke);
|
|
||||||
AVSC_LOAD_FUNC(avs_make_writable);
|
|
||||||
AVSC_LOAD_FUNC(avs_new_c_filter);
|
|
||||||
AVSC_LOAD_FUNC(avs_new_video_frame_a);
|
|
||||||
AVSC_LOAD_FUNC(avs_release_clip);
|
|
||||||
AVSC_LOAD_FUNC(avs_release_value);
|
|
||||||
AVSC_LOAD_FUNC(avs_release_video_frame);
|
|
||||||
AVSC_LOAD_FUNC(avs_save_string);
|
|
||||||
AVSC_LOAD_FUNC(avs_set_cache_hints);
|
|
||||||
AVSC_LOAD_FUNC(avs_set_global_var);
|
|
||||||
AVSC_LOAD_FUNC(avs_set_memory_max);
|
|
||||||
AVSC_LOAD_FUNC(avs_set_to_clip);
|
|
||||||
AVSC_LOAD_FUNC(avs_set_var);
|
|
||||||
AVSC_LOAD_FUNC(avs_set_working_dir);
|
|
||||||
AVSC_LOAD_FUNC(avs_sprintf);
|
|
||||||
AVSC_LOAD_FUNC(avs_subframe);
|
|
||||||
AVSC_LOAD_FUNC(avs_subframe_planar);
|
|
||||||
AVSC_LOAD_FUNC(avs_take_clip);
|
|
||||||
AVSC_LOAD_FUNC(avs_vsprintf);
|
|
||||||
|
|
||||||
#undef __AVSC_STRINGIFY
|
|
||||||
#undef AVSC_STRINGIFY
|
|
||||||
#undef AVSC_LOAD_FUNC
|
|
||||||
|
|
||||||
return library;
|
|
||||||
|
|
||||||
fail:
|
|
||||||
free(library);
|
|
||||||
return NULL;
|
|
||||||
}
|
|
||||||
|
|
||||||
AVSC_INLINE void avs_free_library(AVS_Library *library) {
|
|
||||||
if (library == NULL)
|
|
||||||
return;
|
|
||||||
FreeLibrary(library->handle);
|
|
||||||
free(library);
|
|
||||||
}
|
|
||||||
#endif
|
|
||||||
|
|
||||||
#endif
|
|
||||||
@@ -1,727 +0,0 @@
|
|||||||
// Avisynth C Interface Version 0.20
|
|
||||||
// Copyright 2003 Kevin Atkinson
|
|
||||||
|
|
||||||
// This program is free software; you can redistribute it and/or modify
|
|
||||||
// it under the terms of the GNU General Public License as published by
|
|
||||||
// the Free Software Foundation; either version 2 of the License, or
|
|
||||||
// (at your option) any later version.
|
|
||||||
//
|
|
||||||
// This program is distributed in the hope that it will be useful,
|
|
||||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
||||||
// GNU General Public License for more details.
|
|
||||||
//
|
|
||||||
// You should have received a copy of the GNU General Public License
|
|
||||||
// along with this program; if not, write to the Free Software
|
|
||||||
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA, or visit
|
|
||||||
// http://www.gnu.org/copyleft/gpl.html .
|
|
||||||
//
|
|
||||||
// As a special exception, I give you permission to link to the
|
|
||||||
// Avisynth C interface with independent modules that communicate with
|
|
||||||
// the Avisynth C interface solely through the interfaces defined in
|
|
||||||
// avisynth_c.h, regardless of the license terms of these independent
|
|
||||||
// modules, and to copy and distribute the resulting combined work
|
|
||||||
// under terms of your choice, provided that every copy of the
|
|
||||||
// combined work is accompanied by a complete copy of the source code
|
|
||||||
// of the Avisynth C interface and Avisynth itself (with the version
|
|
||||||
// used to produce the combined work), being distributed under the
|
|
||||||
// terms of the GNU General Public License plus this exception. An
|
|
||||||
// independent module is a module which is not derived from or based
|
|
||||||
// on Avisynth C Interface, such as 3rd-party filters, import and
|
|
||||||
// export plugins, or graphical user interfaces.
|
|
||||||
|
|
||||||
#ifndef __AVXSYNTH_C__
|
|
||||||
#define __AVXSYNTH_C__
|
|
||||||
|
|
||||||
#include "windowsPorts/windows2linux.h"
|
|
||||||
#include <stdarg.h>
|
|
||||||
|
|
||||||
#ifdef __cplusplus
|
|
||||||
# define EXTERN_C extern "C"
|
|
||||||
#else
|
|
||||||
# define EXTERN_C
|
|
||||||
#endif
|
|
||||||
|
|
||||||
#define AVSC_USE_STDCALL 1
|
|
||||||
|
|
||||||
#ifndef AVSC_USE_STDCALL
|
|
||||||
# define AVSC_CC __cdecl
|
|
||||||
#else
|
|
||||||
# define AVSC_CC __stdcall
|
|
||||||
#endif
|
|
||||||
|
|
||||||
#define AVSC_INLINE static __inline
|
|
||||||
|
|
||||||
#ifdef AVISYNTH_C_EXPORTS
|
|
||||||
# define AVSC_EXPORT EXTERN_C
|
|
||||||
# define AVSC_API(ret, name) EXTERN_C __declspec(dllexport) ret AVSC_CC name
|
|
||||||
#else
|
|
||||||
# define AVSC_EXPORT EXTERN_C __declspec(dllexport)
|
|
||||||
# ifndef AVSC_NO_DECLSPEC
|
|
||||||
# define AVSC_API(ret, name) EXTERN_C __declspec(dllimport) ret AVSC_CC name
|
|
||||||
# else
|
|
||||||
# define AVSC_API(ret, name) typedef ret (AVSC_CC *name##_func)
|
|
||||||
# endif
|
|
||||||
#endif
|
|
||||||
|
|
||||||
#ifdef __GNUC__
|
|
||||||
typedef long long int INT64;
|
|
||||||
#else
|
|
||||||
typedef __int64 INT64;
|
|
||||||
#endif
|
|
||||||
|
|
||||||
|
|
||||||
/////////////////////////////////////////////////////////////////////
|
|
||||||
//
|
|
||||||
// Constants
|
|
||||||
//
|
|
||||||
|
|
||||||
#ifndef __AVXSYNTH_H__
|
|
||||||
enum { AVISYNTH_INTERFACE_VERSION = 3 };
|
|
||||||
#endif
|
|
||||||
|
|
||||||
enum {AVS_SAMPLE_INT8 = 1<<0,
|
|
||||||
AVS_SAMPLE_INT16 = 1<<1,
|
|
||||||
AVS_SAMPLE_INT24 = 1<<2,
|
|
||||||
AVS_SAMPLE_INT32 = 1<<3,
|
|
||||||
AVS_SAMPLE_FLOAT = 1<<4};
|
|
||||||
|
|
||||||
enum {AVS_PLANAR_Y=1<<0,
|
|
||||||
AVS_PLANAR_U=1<<1,
|
|
||||||
AVS_PLANAR_V=1<<2,
|
|
||||||
AVS_PLANAR_ALIGNED=1<<3,
|
|
||||||
AVS_PLANAR_Y_ALIGNED=AVS_PLANAR_Y|AVS_PLANAR_ALIGNED,
|
|
||||||
AVS_PLANAR_U_ALIGNED=AVS_PLANAR_U|AVS_PLANAR_ALIGNED,
|
|
||||||
AVS_PLANAR_V_ALIGNED=AVS_PLANAR_V|AVS_PLANAR_ALIGNED};
|
|
||||||
|
|
||||||
// Colorspace properties.
|
|
||||||
enum {AVS_CS_BGR = 1<<28,
|
|
||||||
AVS_CS_YUV = 1<<29,
|
|
||||||
AVS_CS_INTERLEAVED = 1<<30,
|
|
||||||
AVS_CS_PLANAR = 1<<31};
|
|
||||||
|
|
||||||
// Specific colorformats
|
|
||||||
enum {
|
|
||||||
AVS_CS_UNKNOWN = 0,
|
|
||||||
AVS_CS_BGR24 = 1<<0 | AVS_CS_BGR | AVS_CS_INTERLEAVED,
|
|
||||||
AVS_CS_BGR32 = 1<<1 | AVS_CS_BGR | AVS_CS_INTERLEAVED,
|
|
||||||
AVS_CS_YUY2 = 1<<2 | AVS_CS_YUV | AVS_CS_INTERLEAVED,
|
|
||||||
AVS_CS_YV12 = 1<<3 | AVS_CS_YUV | AVS_CS_PLANAR, // y-v-u, planar
|
|
||||||
AVS_CS_I420 = 1<<4 | AVS_CS_YUV | AVS_CS_PLANAR, // y-u-v, planar
|
|
||||||
AVS_CS_IYUV = 1<<4 | AVS_CS_YUV | AVS_CS_PLANAR // same as above
|
|
||||||
};
|
|
||||||
|
|
||||||
enum {
|
|
||||||
AVS_IT_BFF = 1<<0,
|
|
||||||
AVS_IT_TFF = 1<<1,
|
|
||||||
AVS_IT_FIELDBASED = 1<<2};
|
|
||||||
|
|
||||||
enum {
|
|
||||||
AVS_FILTER_TYPE=1,
|
|
||||||
AVS_FILTER_INPUT_COLORSPACE=2,
|
|
||||||
AVS_FILTER_OUTPUT_TYPE=9,
|
|
||||||
AVS_FILTER_NAME=4,
|
|
||||||
AVS_FILTER_AUTHOR=5,
|
|
||||||
AVS_FILTER_VERSION=6,
|
|
||||||
AVS_FILTER_ARGS=7,
|
|
||||||
AVS_FILTER_ARGS_INFO=8,
|
|
||||||
AVS_FILTER_ARGS_DESCRIPTION=10,
|
|
||||||
AVS_FILTER_DESCRIPTION=11};
|
|
||||||
|
|
||||||
enum { //SUBTYPES
|
|
||||||
AVS_FILTER_TYPE_AUDIO=1,
|
|
||||||
AVS_FILTER_TYPE_VIDEO=2,
|
|
||||||
AVS_FILTER_OUTPUT_TYPE_SAME=3,
|
|
||||||
AVS_FILTER_OUTPUT_TYPE_DIFFERENT=4};
|
|
||||||
|
|
||||||
enum {
|
|
||||||
AVS_CACHE_NOTHING=0,
|
|
||||||
AVS_CACHE_RANGE=1,
|
|
||||||
AVS_CACHE_ALL=2,
|
|
||||||
AVS_CACHE_AUDIO=3,
|
|
||||||
AVS_CACHE_AUDIO_NONE=4,
|
|
||||||
AVS_CACHE_AUDIO_AUTO=5
|
|
||||||
};
|
|
||||||
|
|
||||||
#define AVS_FRAME_ALIGN 16
|
|
||||||
|
|
||||||
typedef struct AVS_Clip AVS_Clip;
|
|
||||||
typedef struct AVS_ScriptEnvironment AVS_ScriptEnvironment;
|
|
||||||
|
|
||||||
/////////////////////////////////////////////////////////////////////
|
|
||||||
//
|
|
||||||
// AVS_VideoInfo
|
|
||||||
//
|
|
||||||
|
|
||||||
// AVS_VideoInfo is layed out identicly to VideoInfo
|
|
||||||
typedef struct AVS_VideoInfo {
|
|
||||||
int width, height; // width=0 means no video
|
|
||||||
unsigned fps_numerator, fps_denominator;
|
|
||||||
int num_frames;
|
|
||||||
|
|
||||||
int pixel_type;
|
|
||||||
|
|
||||||
int audio_samples_per_second; // 0 means no audio
|
|
||||||
int sample_type;
|
|
||||||
INT64 num_audio_samples;
|
|
||||||
int nchannels;
|
|
||||||
|
|
||||||
// Imagetype properties
|
|
||||||
|
|
||||||
int image_type;
|
|
||||||
} AVS_VideoInfo;
|
|
||||||
|
|
||||||
// useful functions of the above
|
|
||||||
AVSC_INLINE int avs_has_video(const AVS_VideoInfo * p)
|
|
||||||
{ return (p->width!=0); }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_has_audio(const AVS_VideoInfo * p)
|
|
||||||
{ return (p->audio_samples_per_second!=0); }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_is_rgb(const AVS_VideoInfo * p)
|
|
||||||
{ return !!(p->pixel_type&AVS_CS_BGR); }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_is_rgb24(const AVS_VideoInfo * p)
|
|
||||||
{ return (p->pixel_type&AVS_CS_BGR24)==AVS_CS_BGR24; } // Clear out additional properties
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_is_rgb32(const AVS_VideoInfo * p)
|
|
||||||
{ return (p->pixel_type & AVS_CS_BGR32) == AVS_CS_BGR32 ; }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_is_yuv(const AVS_VideoInfo * p)
|
|
||||||
{ return !!(p->pixel_type&AVS_CS_YUV ); }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_is_yuy2(const AVS_VideoInfo * p)
|
|
||||||
{ return (p->pixel_type & AVS_CS_YUY2) == AVS_CS_YUY2; }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_is_yv12(const AVS_VideoInfo * p)
|
|
||||||
{ return ((p->pixel_type & AVS_CS_YV12) == AVS_CS_YV12)||((p->pixel_type & AVS_CS_I420) == AVS_CS_I420); }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_is_color_space(const AVS_VideoInfo * p, int c_space)
|
|
||||||
{ return ((p->pixel_type & c_space) == c_space); }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_is_property(const AVS_VideoInfo * p, int property)
|
|
||||||
{ return ((p->pixel_type & property)==property ); }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_is_planar(const AVS_VideoInfo * p)
|
|
||||||
{ return !!(p->pixel_type & AVS_CS_PLANAR); }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_is_field_based(const AVS_VideoInfo * p)
|
|
||||||
{ return !!(p->image_type & AVS_IT_FIELDBASED); }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_is_parity_known(const AVS_VideoInfo * p)
|
|
||||||
{ return ((p->image_type & AVS_IT_FIELDBASED)&&(p->image_type & (AVS_IT_BFF | AVS_IT_TFF))); }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_is_bff(const AVS_VideoInfo * p)
|
|
||||||
{ return !!(p->image_type & AVS_IT_BFF); }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_is_tff(const AVS_VideoInfo * p)
|
|
||||||
{ return !!(p->image_type & AVS_IT_TFF); }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_bits_per_pixel(const AVS_VideoInfo * p)
|
|
||||||
{
|
|
||||||
switch (p->pixel_type) {
|
|
||||||
case AVS_CS_BGR24: return 24;
|
|
||||||
case AVS_CS_BGR32: return 32;
|
|
||||||
case AVS_CS_YUY2: return 16;
|
|
||||||
case AVS_CS_YV12:
|
|
||||||
case AVS_CS_I420: return 12;
|
|
||||||
default: return 0;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
AVSC_INLINE int avs_bytes_from_pixels(const AVS_VideoInfo * p, int pixels)
|
|
||||||
{ return pixels * (avs_bits_per_pixel(p)>>3); } // Will work on planar images, but will return only luma planes
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_row_size(const AVS_VideoInfo * p)
|
|
||||||
{ return avs_bytes_from_pixels(p,p->width); } // Also only returns first plane on planar images
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_bmp_size(const AVS_VideoInfo * vi)
|
|
||||||
{ if (avs_is_planar(vi)) {int p = vi->height * ((avs_row_size(vi)+3) & ~3); p+=p>>1; return p; } return vi->height * ((avs_row_size(vi)+3) & ~3); }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_samples_per_second(const AVS_VideoInfo * p)
|
|
||||||
{ return p->audio_samples_per_second; }
|
|
||||||
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_bytes_per_channel_sample(const AVS_VideoInfo * p)
|
|
||||||
{
|
|
||||||
switch (p->sample_type) {
|
|
||||||
case AVS_SAMPLE_INT8: return sizeof(signed char);
|
|
||||||
case AVS_SAMPLE_INT16: return sizeof(signed short);
|
|
||||||
case AVS_SAMPLE_INT24: return 3;
|
|
||||||
case AVS_SAMPLE_INT32: return sizeof(signed int);
|
|
||||||
case AVS_SAMPLE_FLOAT: return sizeof(float);
|
|
||||||
default: return 0;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
AVSC_INLINE int avs_bytes_per_audio_sample(const AVS_VideoInfo * p)
|
|
||||||
{ return p->nchannels*avs_bytes_per_channel_sample(p);}
|
|
||||||
|
|
||||||
AVSC_INLINE INT64 avs_audio_samples_from_frames(const AVS_VideoInfo * p, INT64 frames)
|
|
||||||
{ return ((INT64)(frames) * p->audio_samples_per_second * p->fps_denominator / p->fps_numerator); }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_frames_from_audio_samples(const AVS_VideoInfo * p, INT64 samples)
|
|
||||||
{ return (int)(samples * (INT64)p->fps_numerator / (INT64)p->fps_denominator / (INT64)p->audio_samples_per_second); }
|
|
||||||
|
|
||||||
AVSC_INLINE INT64 avs_audio_samples_from_bytes(const AVS_VideoInfo * p, INT64 bytes)
|
|
||||||
{ return bytes / avs_bytes_per_audio_sample(p); }
|
|
||||||
|
|
||||||
AVSC_INLINE INT64 avs_bytes_from_audio_samples(const AVS_VideoInfo * p, INT64 samples)
|
|
||||||
{ return samples * avs_bytes_per_audio_sample(p); }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_audio_channels(const AVS_VideoInfo * p)
|
|
||||||
{ return p->nchannels; }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_sample_type(const AVS_VideoInfo * p)
|
|
||||||
{ return p->sample_type;}
|
|
||||||
|
|
||||||
// useful mutator
|
|
||||||
AVSC_INLINE void avs_set_property(AVS_VideoInfo * p, int property)
|
|
||||||
{ p->image_type|=property; }
|
|
||||||
|
|
||||||
AVSC_INLINE void avs_clear_property(AVS_VideoInfo * p, int property)
|
|
||||||
{ p->image_type&=~property; }
|
|
||||||
|
|
||||||
AVSC_INLINE void avs_set_field_based(AVS_VideoInfo * p, int isfieldbased)
|
|
||||||
{ if (isfieldbased) p->image_type|=AVS_IT_FIELDBASED; else p->image_type&=~AVS_IT_FIELDBASED; }
|
|
||||||
|
|
||||||
AVSC_INLINE void avs_set_fps(AVS_VideoInfo * p, unsigned numerator, unsigned denominator)
|
|
||||||
{
|
|
||||||
unsigned x=numerator, y=denominator;
|
|
||||||
while (y) { // find gcd
|
|
||||||
unsigned t = x%y; x = y; y = t;
|
|
||||||
}
|
|
||||||
p->fps_numerator = numerator/x;
|
|
||||||
p->fps_denominator = denominator/x;
|
|
||||||
}
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_is_same_colorspace(AVS_VideoInfo * x, AVS_VideoInfo * y)
|
|
||||||
{
|
|
||||||
return (x->pixel_type == y->pixel_type)
|
|
||||||
|| (avs_is_yv12(x) && avs_is_yv12(y));
|
|
||||||
}
|
|
||||||
|
|
||||||
/////////////////////////////////////////////////////////////////////
|
|
||||||
//
|
|
||||||
// AVS_VideoFrame
|
|
||||||
//
|
|
||||||
|
|
||||||
// VideoFrameBuffer holds information about a memory block which is used
|
|
||||||
// for video data. For efficiency, instances of this class are not deleted
|
|
||||||
// when the refcount reaches zero; instead they're stored in a linked list
|
|
||||||
// to be reused. The instances are deleted when the corresponding AVS
|
|
||||||
// file is closed.
|
|
||||||
|
|
||||||
// AVS_VideoFrameBuffer is layed out identicly to VideoFrameBuffer
|
|
||||||
// DO NOT USE THIS STRUCTURE DIRECTLY
|
|
||||||
typedef struct AVS_VideoFrameBuffer {
|
|
||||||
unsigned char * data;
|
|
||||||
int data_size;
|
|
||||||
// sequence_number is incremented every time the buffer is changed, so
|
|
||||||
// that stale views can tell they're no longer valid.
|
|
||||||
long sequence_number;
|
|
||||||
|
|
||||||
long refcount;
|
|
||||||
} AVS_VideoFrameBuffer;
|
|
||||||
|
|
||||||
// VideoFrame holds a "window" into a VideoFrameBuffer.
|
|
||||||
|
|
||||||
// AVS_VideoFrame is layed out identicly to IVideoFrame
|
|
||||||
// DO NOT USE THIS STRUCTURE DIRECTLY
|
|
||||||
typedef struct AVS_VideoFrame {
|
|
||||||
int refcount;
|
|
||||||
AVS_VideoFrameBuffer * vfb;
|
|
||||||
int offset, pitch, row_size, height, offsetU, offsetV, pitchUV; // U&V offsets are from top of picture.
|
|
||||||
} AVS_VideoFrame;
|
|
||||||
|
|
||||||
// Access functions for AVS_VideoFrame
|
|
||||||
AVSC_INLINE int avs_get_pitch(const AVS_VideoFrame * p) {
|
|
||||||
return p->pitch;}
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_get_pitch_p(const AVS_VideoFrame * p, int plane) {
|
|
||||||
switch (plane) {
|
|
||||||
case AVS_PLANAR_U: case AVS_PLANAR_V: return p->pitchUV;}
|
|
||||||
return p->pitch;}
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_get_row_size(const AVS_VideoFrame * p) {
|
|
||||||
return p->row_size; }
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_get_row_size_p(const AVS_VideoFrame * p, int plane) {
|
|
||||||
int r;
|
|
||||||
switch (plane) {
|
|
||||||
case AVS_PLANAR_U: case AVS_PLANAR_V:
|
|
||||||
if (p->pitchUV) return p->row_size>>1;
|
|
||||||
else return 0;
|
|
||||||
case AVS_PLANAR_U_ALIGNED: case AVS_PLANAR_V_ALIGNED:
|
|
||||||
if (p->pitchUV) {
|
|
||||||
r = ((p->row_size+AVS_FRAME_ALIGN-1)&(~(AVS_FRAME_ALIGN-1)) )>>1; // Aligned rowsize
|
|
||||||
if (r < p->pitchUV)
|
|
||||||
return r;
|
|
||||||
return p->row_size>>1;
|
|
||||||
} else return 0;
|
|
||||||
case AVS_PLANAR_Y_ALIGNED:
|
|
||||||
r = (p->row_size+AVS_FRAME_ALIGN-1)&(~(AVS_FRAME_ALIGN-1)); // Aligned rowsize
|
|
||||||
if (r <= p->pitch)
|
|
||||||
return r;
|
|
||||||
return p->row_size;
|
|
||||||
}
|
|
||||||
return p->row_size;
|
|
||||||
}
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_get_height(const AVS_VideoFrame * p) {
|
|
||||||
return p->height;}
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_get_height_p(const AVS_VideoFrame * p, int plane) {
|
|
||||||
switch (plane) {
|
|
||||||
case AVS_PLANAR_U: case AVS_PLANAR_V:
|
|
||||||
if (p->pitchUV) return p->height>>1;
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
return p->height;}
|
|
||||||
|
|
||||||
AVSC_INLINE const unsigned char* avs_get_read_ptr(const AVS_VideoFrame * p) {
|
|
||||||
return p->vfb->data + p->offset;}
|
|
||||||
|
|
||||||
AVSC_INLINE const unsigned char* avs_get_read_ptr_p(const AVS_VideoFrame * p, int plane)
|
|
||||||
{
|
|
||||||
switch (plane) {
|
|
||||||
case AVS_PLANAR_U: return p->vfb->data + p->offsetU;
|
|
||||||
case AVS_PLANAR_V: return p->vfb->data + p->offsetV;
|
|
||||||
default: return p->vfb->data + p->offset;}
|
|
||||||
}
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_is_writable(const AVS_VideoFrame * p) {
|
|
||||||
return (p->refcount == 1 && p->vfb->refcount == 1);}
|
|
||||||
|
|
||||||
AVSC_INLINE unsigned char* avs_get_write_ptr(const AVS_VideoFrame * p)
|
|
||||||
{
|
|
||||||
if (avs_is_writable(p)) {
|
|
||||||
++p->vfb->sequence_number;
|
|
||||||
return p->vfb->data + p->offset;
|
|
||||||
} else
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
AVSC_INLINE unsigned char* avs_get_write_ptr_p(const AVS_VideoFrame * p, int plane)
|
|
||||||
{
|
|
||||||
if (plane==AVS_PLANAR_Y && avs_is_writable(p)) {
|
|
||||||
++p->vfb->sequence_number;
|
|
||||||
return p->vfb->data + p->offset;
|
|
||||||
} else if (plane==AVS_PLANAR_Y) {
|
|
||||||
return 0;
|
|
||||||
} else {
|
|
||||||
switch (plane) {
|
|
||||||
case AVS_PLANAR_U: return p->vfb->data + p->offsetU;
|
|
||||||
case AVS_PLANAR_V: return p->vfb->data + p->offsetV;
|
|
||||||
default: return p->vfb->data + p->offset;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
#if defined __cplusplus
|
|
||||||
extern "C"
|
|
||||||
{
|
|
||||||
#endif // __cplusplus
|
|
||||||
AVSC_API(void, avs_release_video_frame)(AVS_VideoFrame *);
|
|
||||||
// makes a shallow copy of a video frame
|
|
||||||
AVSC_API(AVS_VideoFrame *, avs_copy_video_frame)(AVS_VideoFrame *);
|
|
||||||
#if defined __cplusplus
|
|
||||||
}
|
|
||||||
#endif // __cplusplus
|
|
||||||
|
|
||||||
#ifndef AVSC_NO_DECLSPEC
|
|
||||||
AVSC_INLINE void avs_release_frame(AVS_VideoFrame * f)
|
|
||||||
{avs_release_video_frame(f);}
|
|
||||||
AVSC_INLINE AVS_VideoFrame * avs_copy_frame(AVS_VideoFrame * f)
|
|
||||||
{return avs_copy_video_frame(f);}
|
|
||||||
#endif
|
|
||||||
|
|
||||||
/////////////////////////////////////////////////////////////////////
|
|
||||||
//
|
|
||||||
// AVS_Value
|
|
||||||
//
|
|
||||||
|
|
||||||
// Treat AVS_Value as a fat pointer. That is use avs_copy_value
|
|
||||||
// and avs_release_value appropiaty as you would if AVS_Value was
|
|
||||||
// a pointer.
|
|
||||||
|
|
||||||
// To maintain source code compatibility with future versions of the
|
|
||||||
// avisynth_c API don't use the AVS_Value directly. Use the helper
|
|
||||||
// functions below.
|
|
||||||
|
|
||||||
// AVS_Value is layed out identicly to AVSValue
|
|
||||||
typedef struct AVS_Value AVS_Value;
|
|
||||||
struct AVS_Value {
|
|
||||||
short type; // 'a'rray, 'c'lip, 'b'ool, 'i'nt, 'f'loat, 's'tring, 'v'oid, or 'l'ong
|
|
||||||
// for some function e'rror
|
|
||||||
short array_size;
|
|
||||||
union {
|
|
||||||
void * clip; // do not use directly, use avs_take_clip
|
|
||||||
char boolean;
|
|
||||||
int integer;
|
|
||||||
INT64 integer64; // match addition of __int64 to avxplugin.h
|
|
||||||
float floating_pt;
|
|
||||||
const char * string;
|
|
||||||
const AVS_Value * array;
|
|
||||||
} d;
|
|
||||||
};
|
|
||||||
|
|
||||||
// AVS_Value should be initilized with avs_void.
|
|
||||||
// Should also set to avs_void after the value is released
|
|
||||||
// with avs_copy_value. Consider it the equalvent of setting
|
|
||||||
// a pointer to NULL
|
|
||||||
static const AVS_Value avs_void = {'v'};
|
|
||||||
|
|
||||||
AVSC_API(void, avs_copy_value)(AVS_Value * dest, AVS_Value src);
|
|
||||||
AVSC_API(void, avs_release_value)(AVS_Value);
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_defined(AVS_Value v) { return v.type != 'v'; }
|
|
||||||
AVSC_INLINE int avs_is_clip(AVS_Value v) { return v.type == 'c'; }
|
|
||||||
AVSC_INLINE int avs_is_bool(AVS_Value v) { return v.type == 'b'; }
|
|
||||||
AVSC_INLINE int avs_is_int(AVS_Value v) { return v.type == 'i'; }
|
|
||||||
AVSC_INLINE int avs_is_float(AVS_Value v) { return v.type == 'f' || v.type == 'i'; }
|
|
||||||
AVSC_INLINE int avs_is_string(AVS_Value v) { return v.type == 's'; }
|
|
||||||
AVSC_INLINE int avs_is_array(AVS_Value v) { return v.type == 'a'; }
|
|
||||||
AVSC_INLINE int avs_is_error(AVS_Value v) { return v.type == 'e'; }
|
|
||||||
|
|
||||||
#if defined __cplusplus
|
|
||||||
extern "C"
|
|
||||||
{
|
|
||||||
#endif // __cplusplus
|
|
||||||
AVSC_API(AVS_Clip *, avs_take_clip)(AVS_Value, AVS_ScriptEnvironment *);
|
|
||||||
AVSC_API(void, avs_set_to_clip)(AVS_Value *, AVS_Clip *);
|
|
||||||
#if defined __cplusplus
|
|
||||||
}
|
|
||||||
#endif // __cplusplus
|
|
||||||
|
|
||||||
AVSC_INLINE int avs_as_bool(AVS_Value v)
|
|
||||||
{ return v.d.boolean; }
|
|
||||||
AVSC_INLINE int avs_as_int(AVS_Value v)
|
|
||||||
{ return v.d.integer; }
|
|
||||||
AVSC_INLINE const char * avs_as_string(AVS_Value v)
|
|
||||||
{ return avs_is_error(v) || avs_is_string(v) ? v.d.string : 0; }
|
|
||||||
AVSC_INLINE double avs_as_float(AVS_Value v)
|
|
||||||
{ return avs_is_int(v) ? v.d.integer : v.d.floating_pt; }
|
|
||||||
AVSC_INLINE const char * avs_as_error(AVS_Value v)
|
|
||||||
{ return avs_is_error(v) ? v.d.string : 0; }
|
|
||||||
AVSC_INLINE const AVS_Value * avs_as_array(AVS_Value v)
|
|
||||||
{ return v.d.array; }
|
|
||||||
AVSC_INLINE int avs_array_size(AVS_Value v)
|
|
||||||
{ return avs_is_array(v) ? v.array_size : 1; }
|
|
||||||
AVSC_INLINE AVS_Value avs_array_elt(AVS_Value v, int index)
|
|
||||||
{ return avs_is_array(v) ? v.d.array[index] : v; }
|
|
||||||
|
|
||||||
// only use these functions on am AVS_Value that does not already have
|
|
||||||
// an active value. Remember, treat AVS_Value as a fat pointer.
|
|
||||||
AVSC_INLINE AVS_Value avs_new_value_bool(int v0)
|
|
||||||
{ AVS_Value v; v.type = 'b'; v.d.boolean = v0 == 0 ? 0 : 1; return v; }
|
|
||||||
AVSC_INLINE AVS_Value avs_new_value_int(int v0)
|
|
||||||
{ AVS_Value v; v.type = 'i'; v.d.integer = v0; return v; }
|
|
||||||
AVSC_INLINE AVS_Value avs_new_value_string(const char * v0)
|
|
||||||
{ AVS_Value v; v.type = 's'; v.d.string = v0; return v; }
|
|
||||||
AVSC_INLINE AVS_Value avs_new_value_float(float v0)
|
|
||||||
{ AVS_Value v; v.type = 'f'; v.d.floating_pt = v0; return v;}
|
|
||||||
AVSC_INLINE AVS_Value avs_new_value_error(const char * v0)
|
|
||||||
{ AVS_Value v; v.type = 'e'; v.d.string = v0; return v; }
|
|
||||||
#ifndef AVSC_NO_DECLSPEC
|
|
||||||
AVSC_INLINE AVS_Value avs_new_value_clip(AVS_Clip * v0)
|
|
||||||
{ AVS_Value v; avs_set_to_clip(&v, v0); return v; }
|
|
||||||
#endif
|
|
||||||
AVSC_INLINE AVS_Value avs_new_value_array(AVS_Value * v0, int size)
|
|
||||||
{ AVS_Value v; v.type = 'a'; v.d.array = v0; v.array_size = size; return v; }
|
|
||||||
|
|
||||||
/////////////////////////////////////////////////////////////////////
|
|
||||||
//
|
|
||||||
// AVS_Clip
|
|
||||||
//
|
|
||||||
#if defined __cplusplus
|
|
||||||
extern "C"
|
|
||||||
{
|
|
||||||
#endif // __cplusplus
|
|
||||||
AVSC_API(void, avs_release_clip)(AVS_Clip *);
|
|
||||||
AVSC_API(AVS_Clip *, avs_copy_clip)(AVS_Clip *);
|
|
||||||
|
|
||||||
AVSC_API(const char *, avs_clip_get_error)(AVS_Clip *); // return 0 if no error
|
|
||||||
|
|
||||||
AVSC_API(const AVS_VideoInfo *, avs_get_video_info)(AVS_Clip *);
|
|
||||||
|
|
||||||
AVSC_API(int, avs_get_version)(AVS_Clip *);
|
|
||||||
|
|
||||||
AVSC_API(AVS_VideoFrame *, avs_get_frame)(AVS_Clip *, int n);
|
|
||||||
// The returned video frame must be released with avs_release_video_frame
|
|
||||||
|
|
||||||
AVSC_API(int, avs_get_parity)(AVS_Clip *, int n);
|
|
||||||
// return field parity if field_based, else parity of first field in frame
|
|
||||||
|
|
||||||
AVSC_API(int, avs_get_audio)(AVS_Clip *, void * buf,
|
|
||||||
INT64 start, INT64 count);
|
|
||||||
// start and count are in samples
|
|
||||||
|
|
||||||
AVSC_API(int, avs_set_cache_hints)(AVS_Clip *,
|
|
||||||
int cachehints, size_t frame_range);
|
|
||||||
#if defined __cplusplus
|
|
||||||
}
|
|
||||||
#endif // __cplusplus
|
|
||||||
|
|
||||||
// This is the callback type used by avs_add_function
|
|
||||||
typedef AVS_Value (AVSC_CC * AVS_ApplyFunc)
|
|
||||||
(AVS_ScriptEnvironment *, AVS_Value args, void * user_data);
|
|
||||||
|
|
||||||
typedef struct AVS_FilterInfo AVS_FilterInfo;
|
|
||||||
struct AVS_FilterInfo
|
|
||||||
{
|
|
||||||
// these members should not be modified outside of the AVS_ApplyFunc callback
|
|
||||||
AVS_Clip * child;
|
|
||||||
AVS_VideoInfo vi;
|
|
||||||
AVS_ScriptEnvironment * env;
|
|
||||||
AVS_VideoFrame * (AVSC_CC * get_frame)(AVS_FilterInfo *, int n);
|
|
||||||
int (AVSC_CC * get_parity)(AVS_FilterInfo *, int n);
|
|
||||||
int (AVSC_CC * get_audio)(AVS_FilterInfo *, void * buf,
|
|
||||||
INT64 start, INT64 count);
|
|
||||||
int (AVSC_CC * set_cache_hints)(AVS_FilterInfo *, int cachehints,
|
|
||||||
int frame_range);
|
|
||||||
void (AVSC_CC * free_filter)(AVS_FilterInfo *);
|
|
||||||
|
|
||||||
// Should be set when ever there is an error to report.
|
|
||||||
// It is cleared before any of the above methods are called
|
|
||||||
const char * error;
|
|
||||||
// this is to store whatever and may be modified at will
|
|
||||||
void * user_data;
|
|
||||||
};
|
|
||||||
|
|
||||||
// Create a new filter
|
|
||||||
// fi is set to point to the AVS_FilterInfo so that you can
|
|
||||||
// modify it once it is initilized.
|
|
||||||
// store_child should generally be set to true. If it is not
|
|
||||||
// set than ALL methods (the function pointers) must be defined
|
|
||||||
// If it is set than you do not need to worry about freeing the child
|
|
||||||
// clip.
|
|
||||||
#if defined __cplusplus
|
|
||||||
extern "C"
|
|
||||||
{
|
|
||||||
#endif // __cplusplus
|
|
||||||
AVSC_API(AVS_Clip *, avs_new_c_filter)(AVS_ScriptEnvironment * e,
|
|
||||||
AVS_FilterInfo * * fi,
|
|
||||||
AVS_Value child, int store_child);
|
|
||||||
#if defined __cplusplus
|
|
||||||
}
|
|
||||||
#endif // __cplusplus
|
|
||||||
|
|
||||||
|
|
||||||
/////////////////////////////////////////////////////////////////////
|
|
||||||
//
|
|
||||||
// AVS_ScriptEnvironment
|
|
||||||
//
|
|
||||||
|
|
||||||
// For GetCPUFlags. These are backwards-compatible with those in VirtualDub.
|
|
||||||
enum {
|
|
||||||
/* slowest CPU to support extension */
|
|
||||||
AVS_CPU_FORCE = 0x01, // N/A
|
|
||||||
AVS_CPU_FPU = 0x02, // 386/486DX
|
|
||||||
AVS_CPU_MMX = 0x04, // P55C, K6, PII
|
|
||||||
AVS_CPU_INTEGER_SSE = 0x08, // PIII, Athlon
|
|
||||||
AVS_CPU_SSE = 0x10, // PIII, Athlon XP/MP
|
|
||||||
AVS_CPU_SSE2 = 0x20, // PIV, Hammer
|
|
||||||
AVS_CPU_3DNOW = 0x40, // K6-2
|
|
||||||
AVS_CPU_3DNOW_EXT = 0x80, // Athlon
|
|
||||||
AVS_CPU_X86_64 = 0xA0, // Hammer (note: equiv. to 3DNow + SSE2,
|
|
||||||
// which only Hammer will have anyway)
|
|
||||||
};
|
|
||||||
|
|
||||||
#if defined __cplusplus
|
|
||||||
extern "C"
|
|
||||||
{
|
|
||||||
#endif // __cplusplus
|
|
||||||
AVSC_API(const char *, avs_get_error)(AVS_ScriptEnvironment *); // return 0 if no error
|
|
||||||
|
|
||||||
AVSC_API(long, avs_get_cpu_flags)(AVS_ScriptEnvironment *);
|
|
||||||
AVSC_API(int, avs_check_version)(AVS_ScriptEnvironment *, int version);
|
|
||||||
|
|
||||||
AVSC_API(char *, avs_save_string)(AVS_ScriptEnvironment *, const char* s, int length);
|
|
||||||
AVSC_API(char *, avs_sprintf)(AVS_ScriptEnvironment *, const char * fmt, ...);
|
|
||||||
|
|
||||||
AVSC_API(char *, avs_vsprintf)(AVS_ScriptEnvironment *, const char * fmt, va_list val);
|
|
||||||
// note: val is really a va_list; I hope everyone typedefs va_list to a pointer
|
|
||||||
|
|
||||||
AVSC_API(int, avs_add_function)(AVS_ScriptEnvironment *,
|
|
||||||
const char * name, const char * params,
|
|
||||||
AVS_ApplyFunc apply, void * user_data);
|
|
||||||
|
|
||||||
AVSC_API(int, avs_function_exists)(AVS_ScriptEnvironment *, const char * name);
|
|
||||||
|
|
||||||
AVSC_API(AVS_Value, avs_invoke)(AVS_ScriptEnvironment *, const char * name,
|
|
||||||
AVS_Value args, const char** arg_names);
|
|
||||||
// The returned value must be be released with avs_release_value
|
|
||||||
|
|
||||||
AVSC_API(AVS_Value, avs_get_var)(AVS_ScriptEnvironment *, const char* name);
|
|
||||||
// The returned value must be be released with avs_release_value
|
|
||||||
|
|
||||||
AVSC_API(int, avs_set_var)(AVS_ScriptEnvironment *, const char* name, AVS_Value val);
|
|
||||||
|
|
||||||
AVSC_API(int, avs_set_global_var)(AVS_ScriptEnvironment *, const char* name, const AVS_Value val);
|
|
||||||
|
|
||||||
//void avs_push_context(AVS_ScriptEnvironment *, int level=0);
|
|
||||||
//void avs_pop_context(AVS_ScriptEnvironment *);
|
|
||||||
|
|
||||||
AVSC_API(AVS_VideoFrame *, avs_new_video_frame_a)(AVS_ScriptEnvironment *,
|
|
||||||
const AVS_VideoInfo * vi, int align);
|
|
||||||
// align should be at least 16
|
|
||||||
#if defined __cplusplus
|
|
||||||
}
|
|
||||||
#endif // __cplusplus
|
|
||||||
|
|
||||||
#ifndef AVSC_NO_DECLSPEC
|
|
||||||
AVSC_INLINE
|
|
||||||
AVS_VideoFrame * avs_new_video_frame(AVS_ScriptEnvironment * env,
|
|
||||||
const AVS_VideoInfo * vi)
|
|
||||||
{return avs_new_video_frame_a(env,vi,AVS_FRAME_ALIGN);}
|
|
||||||
|
|
||||||
AVSC_INLINE
|
|
||||||
AVS_VideoFrame * avs_new_frame(AVS_ScriptEnvironment * env,
|
|
||||||
const AVS_VideoInfo * vi)
|
|
||||||
{return avs_new_video_frame_a(env,vi,AVS_FRAME_ALIGN);}
|
|
||||||
#endif
|
|
||||||
|
|
||||||
#if defined __cplusplus
|
|
||||||
extern "C"
|
|
||||||
{
|
|
||||||
#endif // __cplusplus
|
|
||||||
AVSC_API(int, avs_make_writable)(AVS_ScriptEnvironment *, AVS_VideoFrame * * pvf);
|
|
||||||
|
|
||||||
AVSC_API(void, avs_bit_blt)(AVS_ScriptEnvironment *, unsigned char* dstp, int dst_pitch, const unsigned char* srcp, int src_pitch, int row_size, int height);
|
|
||||||
|
|
||||||
typedef void (AVSC_CC *AVS_ShutdownFunc)(void* user_data, AVS_ScriptEnvironment * env);
|
|
||||||
AVSC_API(void, avs_at_exit)(AVS_ScriptEnvironment *, AVS_ShutdownFunc function, void * user_data);
|
|
||||||
|
|
||||||
AVSC_API(AVS_VideoFrame *, avs_subframe)(AVS_ScriptEnvironment *, AVS_VideoFrame * src, int rel_offset, int new_pitch, int new_row_size, int new_height);
|
|
||||||
// The returned video frame must be be released
|
|
||||||
|
|
||||||
AVSC_API(int, avs_set_memory_max)(AVS_ScriptEnvironment *, int mem);
|
|
||||||
|
|
||||||
AVSC_API(int, avs_set_working_dir)(AVS_ScriptEnvironment *, const char * newdir);
|
|
||||||
|
|
||||||
// avisynth.dll exports this; it's a way to use it as a library, without
|
|
||||||
// writing an AVS script or without going through AVIFile.
|
|
||||||
AVSC_API(AVS_ScriptEnvironment *, avs_create_script_environment)(int version);
|
|
||||||
#if defined __cplusplus
|
|
||||||
}
|
|
||||||
#endif // __cplusplus
|
|
||||||
|
|
||||||
// this symbol is the entry point for the plugin and must
|
|
||||||
// be defined
|
|
||||||
AVSC_EXPORT
|
|
||||||
const char * AVSC_CC avisynth_c_plugin_init(AVS_ScriptEnvironment* env);
|
|
||||||
|
|
||||||
|
|
||||||
#if defined __cplusplus
|
|
||||||
extern "C"
|
|
||||||
{
|
|
||||||
#endif // __cplusplus
|
|
||||||
AVSC_API(void, avs_delete_script_environment)(AVS_ScriptEnvironment *);
|
|
||||||
|
|
||||||
|
|
||||||
AVSC_API(AVS_VideoFrame *, avs_subframe_planar)(AVS_ScriptEnvironment *, AVS_VideoFrame * src, int rel_offset, int new_pitch, int new_row_size, int new_height, int rel_offsetU, int rel_offsetV, int new_pitchUV);
|
|
||||||
// The returned video frame must be be released
|
|
||||||
#if defined __cplusplus
|
|
||||||
}
|
|
||||||
#endif // __cplusplus
|
|
||||||
|
|
||||||
#endif //__AVXSYNTH_C__
|
|
||||||
@@ -1,85 +0,0 @@
|
|||||||
#ifndef __DATA_TYPE_CONVERSIONS_H__
|
|
||||||
#define __DATA_TYPE_CONVERSIONS_H__
|
|
||||||
|
|
||||||
#include <stdint.h>
|
|
||||||
#include <wchar.h>
|
|
||||||
|
|
||||||
#ifdef __cplusplus
|
|
||||||
namespace avxsynth {
|
|
||||||
#endif // __cplusplus
|
|
||||||
|
|
||||||
typedef int64_t __int64;
|
|
||||||
typedef int32_t __int32;
|
|
||||||
#ifdef __cplusplus
|
|
||||||
typedef bool BOOL;
|
|
||||||
#else
|
|
||||||
typedef uint32_t BOOL;
|
|
||||||
#endif // __cplusplus
|
|
||||||
typedef void* HMODULE;
|
|
||||||
typedef void* LPVOID;
|
|
||||||
typedef void* PVOID;
|
|
||||||
typedef PVOID HANDLE;
|
|
||||||
typedef HANDLE HWND;
|
|
||||||
typedef HANDLE HINSTANCE;
|
|
||||||
typedef void* HDC;
|
|
||||||
typedef void* HBITMAP;
|
|
||||||
typedef void* HICON;
|
|
||||||
typedef void* HFONT;
|
|
||||||
typedef void* HGDIOBJ;
|
|
||||||
typedef void* HBRUSH;
|
|
||||||
typedef void* HMMIO;
|
|
||||||
typedef void* HACMSTREAM;
|
|
||||||
typedef void* HACMDRIVER;
|
|
||||||
typedef void* HIC;
|
|
||||||
typedef void* HACMOBJ;
|
|
||||||
typedef HACMSTREAM* LPHACMSTREAM;
|
|
||||||
typedef void* HACMDRIVERID;
|
|
||||||
typedef void* LPHACMDRIVER;
|
|
||||||
typedef unsigned char BYTE;
|
|
||||||
typedef BYTE* LPBYTE;
|
|
||||||
typedef char TCHAR;
|
|
||||||
typedef TCHAR* LPTSTR;
|
|
||||||
typedef const TCHAR* LPCTSTR;
|
|
||||||
typedef char* LPSTR;
|
|
||||||
typedef LPSTR LPOLESTR;
|
|
||||||
typedef const char* LPCSTR;
|
|
||||||
typedef LPCSTR LPCOLESTR;
|
|
||||||
typedef wchar_t WCHAR;
|
|
||||||
typedef unsigned short WORD;
|
|
||||||
typedef unsigned int UINT;
|
|
||||||
typedef UINT MMRESULT;
|
|
||||||
typedef uint32_t DWORD;
|
|
||||||
typedef DWORD COLORREF;
|
|
||||||
typedef DWORD FOURCC;
|
|
||||||
typedef DWORD HRESULT;
|
|
||||||
typedef DWORD* LPDWORD;
|
|
||||||
typedef DWORD* DWORD_PTR;
|
|
||||||
typedef int32_t LONG;
|
|
||||||
typedef int32_t* LONG_PTR;
|
|
||||||
typedef LONG_PTR LRESULT;
|
|
||||||
typedef uint32_t ULONG;
|
|
||||||
typedef uint32_t* ULONG_PTR;
|
|
||||||
//typedef __int64_t intptr_t;
|
|
||||||
typedef uint64_t _fsize_t;
|
|
||||||
|
|
||||||
|
|
||||||
//
|
|
||||||
// Structures
|
|
||||||
//
|
|
||||||
|
|
||||||
typedef struct _GUID {
|
|
||||||
DWORD Data1;
|
|
||||||
WORD Data2;
|
|
||||||
WORD Data3;
|
|
||||||
BYTE Data4[8];
|
|
||||||
} GUID;
|
|
||||||
|
|
||||||
typedef GUID REFIID;
|
|
||||||
typedef GUID CLSID;
|
|
||||||
typedef CLSID* LPCLSID;
|
|
||||||
typedef GUID IID;
|
|
||||||
|
|
||||||
#ifdef __cplusplus
|
|
||||||
}; // namespace avxsynth
|
|
||||||
#endif // __cplusplus
|
|
||||||
#endif // __DATA_TYPE_CONVERSIONS_H__
|
|
||||||
@@ -1,77 +0,0 @@
|
|||||||
#ifndef __WINDOWS2LINUX_H__
|
|
||||||
#define __WINDOWS2LINUX_H__
|
|
||||||
|
|
||||||
/*
|
|
||||||
* LINUX SPECIFIC DEFINITIONS
|
|
||||||
*/
|
|
||||||
//
|
|
||||||
// Data types conversions
|
|
||||||
//
|
|
||||||
#include <stdlib.h>
|
|
||||||
#include <string.h>
|
|
||||||
#include "basicDataTypeConversions.h"
|
|
||||||
|
|
||||||
#ifdef __cplusplus
|
|
||||||
namespace avxsynth {
|
|
||||||
#endif // __cplusplus
|
|
||||||
//
|
|
||||||
// purposefully define the following MSFT definitions
|
|
||||||
// to mean nothing (as they do not mean anything on Linux)
|
|
||||||
//
|
|
||||||
#define __stdcall
|
|
||||||
#define __cdecl
|
|
||||||
#define noreturn
|
|
||||||
#define __declspec(x)
|
|
||||||
#define STDAPI extern "C" HRESULT
|
|
||||||
#define STDMETHODIMP HRESULT __stdcall
|
|
||||||
#define STDMETHODIMP_(x) x __stdcall
|
|
||||||
|
|
||||||
#define STDMETHOD(x) virtual HRESULT x
|
|
||||||
#define STDMETHOD_(a, x) virtual a x
|
|
||||||
|
|
||||||
#ifndef TRUE
|
|
||||||
#define TRUE true
|
|
||||||
#endif
|
|
||||||
|
|
||||||
#ifndef FALSE
|
|
||||||
#define FALSE false
|
|
||||||
#endif
|
|
||||||
|
|
||||||
#define S_OK (0x00000000)
|
|
||||||
#define S_FALSE (0x00000001)
|
|
||||||
#define E_NOINTERFACE (0X80004002)
|
|
||||||
#define E_POINTER (0x80004003)
|
|
||||||
#define E_FAIL (0x80004005)
|
|
||||||
#define E_OUTOFMEMORY (0x8007000E)
|
|
||||||
|
|
||||||
#define INVALID_HANDLE_VALUE ((HANDLE)((LONG_PTR)-1))
|
|
||||||
#define FAILED(hr) ((hr) & 0x80000000)
|
|
||||||
#define SUCCEEDED(hr) (!FAILED(hr))
|
|
||||||
|
|
||||||
|
|
||||||
//
|
|
||||||
// Functions
|
|
||||||
//
|
|
||||||
#define MAKEDWORD(a,b,c,d) ((a << 24) | (b << 16) | (c << 8) | (d))
|
|
||||||
#define MAKEWORD(a,b) ((a << 8) | (b))
|
|
||||||
|
|
||||||
#define lstrlen strlen
|
|
||||||
#define lstrcpy strcpy
|
|
||||||
#define lstrcmpi strcasecmp
|
|
||||||
#define _stricmp strcasecmp
|
|
||||||
#define InterlockedIncrement(x) __sync_fetch_and_add((x), 1)
|
|
||||||
#define InterlockedDecrement(x) __sync_fetch_and_sub((x), 1)
|
|
||||||
// Windows uses (new, old) ordering but GCC has (old, new)
|
|
||||||
#define InterlockedCompareExchange(x,y,z) __sync_val_compare_and_swap(x,z,y)
|
|
||||||
|
|
||||||
#define UInt32x32To64(a, b) ( (uint64_t) ( ((uint64_t)((uint32_t)(a))) * ((uint32_t)(b)) ) )
|
|
||||||
#define Int64ShrlMod32(a, b) ( (uint64_t) ( (uint64_t)(a) >> (b) ) )
|
|
||||||
#define Int32x32To64(a, b) ((__int64)(((__int64)((long)(a))) * ((long)(b))))
|
|
||||||
|
|
||||||
#define MulDiv(nNumber, nNumerator, nDenominator) (int32_t) (((int64_t) (nNumber) * (int64_t) (nNumerator) + (int64_t) ((nDenominator)/2)) / (int64_t) (nDenominator))
|
|
||||||
|
|
||||||
#ifdef __cplusplus
|
|
||||||
}; // namespace avxsynth
|
|
||||||
#endif // __cplusplus
|
|
||||||
|
|
||||||
#endif // __WINDOWS2LINUX_H__
|
|
||||||
@@ -1,86 +0,0 @@
|
|||||||
/*
|
|
||||||
* This file is part of FFmpeg.
|
|
||||||
*
|
|
||||||
* FFmpeg is free software; you can redistribute it and/or
|
|
||||||
* modify it under the terms of the GNU Lesser General Public
|
|
||||||
* License as published by the Free Software Foundation; either
|
|
||||||
* version 2.1 of the License, or (at your option) any later version.
|
|
||||||
*
|
|
||||||
* FFmpeg is distributed in the hope that it will be useful,
|
|
||||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
||||||
* Lesser General Public License for more details.
|
|
||||||
*
|
|
||||||
* You should have received a copy of the GNU Lesser General Public
|
|
||||||
* License along with FFmpeg; if not, write to the Free Software
|
|
||||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
||||||
*/
|
|
||||||
|
|
||||||
/*
|
|
||||||
* This file was copied from the following newsgroup posting:
|
|
||||||
*
|
|
||||||
* Newsgroups: mod.std.unix
|
|
||||||
* Subject: public domain AT&T getopt source
|
|
||||||
* Date: 3 Nov 85 19:34:15 GMT
|
|
||||||
*
|
|
||||||
* Here's something you've all been waiting for: the AT&T public domain
|
|
||||||
* source for getopt(3). It is the code which was given out at the 1985
|
|
||||||
* UNIFORUM conference in Dallas. I obtained it by electronic mail
|
|
||||||
* directly from AT&T. The people there assure me that it is indeed
|
|
||||||
* in the public domain.
|
|
||||||
*/
|
|
||||||
|
|
||||||
#include <stdio.h>
|
|
||||||
#include <string.h>
|
|
||||||
|
|
||||||
static int opterr = 1;
|
|
||||||
static int optind = 1;
|
|
||||||
static int optopt;
|
|
||||||
static char *optarg;
|
|
||||||
|
|
||||||
#undef fprintf
|
|
||||||
|
|
||||||
static int getopt(int argc, char *argv[], char *opts)
|
|
||||||
{
|
|
||||||
static int sp = 1;
|
|
||||||
int c;
|
|
||||||
char *cp;
|
|
||||||
|
|
||||||
if (sp == 1) {
|
|
||||||
if (optind >= argc ||
|
|
||||||
argv[optind][0] != '-' || argv[optind][1] == '\0')
|
|
||||||
return EOF;
|
|
||||||
else if (!strcmp(argv[optind], "--")) {
|
|
||||||
optind++;
|
|
||||||
return EOF;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
optopt = c = argv[optind][sp];
|
|
||||||
if (c == ':' || (cp = strchr(opts, c)) == NULL) {
|
|
||||||
fprintf(stderr, ": illegal option -- %c\n", c);
|
|
||||||
if (argv[optind][++sp] == '\0') {
|
|
||||||
optind++;
|
|
||||||
sp = 1;
|
|
||||||
}
|
|
||||||
return '?';
|
|
||||||
}
|
|
||||||
if (*++cp == ':') {
|
|
||||||
if (argv[optind][sp+1] != '\0')
|
|
||||||
optarg = &argv[optind++][sp+1];
|
|
||||||
else if(++optind >= argc) {
|
|
||||||
fprintf(stderr, ": option requires an argument -- %c\n", c);
|
|
||||||
sp = 1;
|
|
||||||
return '?';
|
|
||||||
} else
|
|
||||||
optarg = argv[optind++];
|
|
||||||
sp = 1;
|
|
||||||
} else {
|
|
||||||
if (argv[optind][++sp] == '\0') {
|
|
||||||
sp = 1;
|
|
||||||
optind++;
|
|
||||||
}
|
|
||||||
optarg = NULL;
|
|
||||||
}
|
|
||||||
|
|
||||||
return c;
|
|
||||||
}
|
|
||||||
@@ -1,71 +0,0 @@
|
|||||||
/*
|
|
||||||
* C99-compatible snprintf() and vsnprintf() implementations
|
|
||||||
* Copyright (c) 2012 Ronald S. Bultje <rsbultje@gmail.com>
|
|
||||||
*
|
|
||||||
* This file is part of FFmpeg.
|
|
||||||
*
|
|
||||||
* FFmpeg is free software; you can redistribute it and/or
|
|
||||||
* modify it under the terms of the GNU Lesser General Public
|
|
||||||
* License as published by the Free Software Foundation; either
|
|
||||||
* version 2.1 of the License, or (at your option) any later version.
|
|
||||||
*
|
|
||||||
* FFmpeg is distributed in the hope that it will be useful,
|
|
||||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
||||||
* Lesser General Public License for more details.
|
|
||||||
*
|
|
||||||
* You should have received a copy of the GNU Lesser General Public
|
|
||||||
* License along with FFmpeg; if not, write to the Free Software
|
|
||||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
||||||
*/
|
|
||||||
|
|
||||||
#include <stdio.h>
|
|
||||||
#include <stdarg.h>
|
|
||||||
#include <limits.h>
|
|
||||||
#include <string.h>
|
|
||||||
|
|
||||||
#include "compat/va_copy.h"
|
|
||||||
#include "libavutil/error.h"
|
|
||||||
|
|
||||||
#if defined(__MINGW32__)
|
|
||||||
#define EOVERFLOW EFBIG
|
|
||||||
#endif
|
|
||||||
|
|
||||||
int avpriv_snprintf(char *s, size_t n, const char *fmt, ...)
|
|
||||||
{
|
|
||||||
va_list ap;
|
|
||||||
int ret;
|
|
||||||
|
|
||||||
va_start(ap, fmt);
|
|
||||||
ret = avpriv_vsnprintf(s, n, fmt, ap);
|
|
||||||
va_end(ap);
|
|
||||||
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
int avpriv_vsnprintf(char *s, size_t n, const char *fmt,
|
|
||||||
va_list ap)
|
|
||||||
{
|
|
||||||
int ret;
|
|
||||||
va_list ap_copy;
|
|
||||||
|
|
||||||
if (n == 0)
|
|
||||||
return _vscprintf(fmt, ap);
|
|
||||||
else if (n > INT_MAX)
|
|
||||||
return AVERROR(EOVERFLOW);
|
|
||||||
|
|
||||||
/* we use n - 1 here because if the buffer is not big enough, the MS
|
|
||||||
* runtime libraries don't add a terminating zero at the end. MSDN
|
|
||||||
* recommends to provide _snprintf/_vsnprintf() a buffer size that
|
|
||||||
* is one less than the actual buffer, and zero it before calling
|
|
||||||
* _snprintf/_vsnprintf() to workaround this problem.
|
|
||||||
* See http://msdn.microsoft.com/en-us/library/1kt27hek(v=vs.80).aspx */
|
|
||||||
memset(s, 0, n);
|
|
||||||
va_copy(ap_copy, ap);
|
|
||||||
ret = _vsnprintf(s, n - 1, fmt, ap_copy);
|
|
||||||
va_end(ap_copy);
|
|
||||||
if (ret == -1)
|
|
||||||
ret = _vscprintf(fmt, ap);
|
|
||||||
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
@@ -1,162 +0,0 @@
|
|||||||
/*
|
|
||||||
* Copyright (c) 2011 KO Myung-Hun <komh@chollian.net>
|
|
||||||
*
|
|
||||||
* This file is part of FFmpeg.
|
|
||||||
*
|
|
||||||
* FFmpeg is free software; you can redistribute it and/or
|
|
||||||
* modify it under the terms of the GNU Lesser General Public
|
|
||||||
* License as published by the Free Software Foundation; either
|
|
||||||
* version 2.1 of the License, or (at your option) any later version.
|
|
||||||
*
|
|
||||||
* FFmpeg is distributed in the hope that it will be useful,
|
|
||||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
||||||
* Lesser General Public License for more details.
|
|
||||||
*
|
|
||||||
* You should have received a copy of the GNU Lesser General Public
|
|
||||||
* License along with FFmpeg; if not, write to the Free Software
|
|
||||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
||||||
*/
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @file
|
|
||||||
* os2threads to pthreads wrapper
|
|
||||||
*/
|
|
||||||
|
|
||||||
#ifndef AVCODEC_OS2PTHREADS_H
|
|
||||||
#define AVCODEC_OS2PTHREADS_H
|
|
||||||
|
|
||||||
#define INCL_DOS
|
|
||||||
#include <os2.h>
|
|
||||||
|
|
||||||
#undef __STRICT_ANSI__ /* for _beginthread() */
|
|
||||||
#include <stdlib.h>
|
|
||||||
|
|
||||||
typedef TID pthread_t;
|
|
||||||
typedef void pthread_attr_t;
|
|
||||||
|
|
||||||
typedef HMTX pthread_mutex_t;
|
|
||||||
typedef void pthread_mutexattr_t;
|
|
||||||
|
|
||||||
typedef struct {
|
|
||||||
HEV event_sem;
|
|
||||||
int wait_count;
|
|
||||||
} pthread_cond_t;
|
|
||||||
|
|
||||||
typedef void pthread_condattr_t;
|
|
||||||
|
|
||||||
struct thread_arg {
|
|
||||||
void *(*start_routine)(void *);
|
|
||||||
void *arg;
|
|
||||||
};
|
|
||||||
|
|
||||||
static void thread_entry(void *arg)
|
|
||||||
{
|
|
||||||
struct thread_arg *thread_arg = arg;
|
|
||||||
|
|
||||||
thread_arg->start_routine(thread_arg->arg);
|
|
||||||
|
|
||||||
av_free(thread_arg);
|
|
||||||
}
|
|
||||||
|
|
||||||
static av_always_inline int pthread_create(pthread_t *thread, const pthread_attr_t *attr, void *(*start_routine)(void*), void *arg)
|
|
||||||
{
|
|
||||||
struct thread_arg *thread_arg;
|
|
||||||
|
|
||||||
thread_arg = av_mallocz(sizeof(struct thread_arg));
|
|
||||||
|
|
||||||
thread_arg->start_routine = start_routine;
|
|
||||||
thread_arg->arg = arg;
|
|
||||||
|
|
||||||
*thread = _beginthread(thread_entry, NULL, 256 * 1024, thread_arg);
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
static av_always_inline int pthread_join(pthread_t thread, void **value_ptr)
|
|
||||||
{
|
|
||||||
DosWaitThread((PTID)&thread, DCWW_WAIT);
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
static av_always_inline int pthread_mutex_init(pthread_mutex_t *mutex, const pthread_mutexattr_t *attr)
|
|
||||||
{
|
|
||||||
DosCreateMutexSem(NULL, (PHMTX)mutex, 0, FALSE);
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
static av_always_inline int pthread_mutex_destroy(pthread_mutex_t *mutex)
|
|
||||||
{
|
|
||||||
DosCloseMutexSem(*(PHMTX)mutex);
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
static av_always_inline int pthread_mutex_lock(pthread_mutex_t *mutex)
|
|
||||||
{
|
|
||||||
DosRequestMutexSem(*(PHMTX)mutex, SEM_INDEFINITE_WAIT);
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
static av_always_inline int pthread_mutex_unlock(pthread_mutex_t *mutex)
|
|
||||||
{
|
|
||||||
DosReleaseMutexSem(*(PHMTX)mutex);
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
static av_always_inline int pthread_cond_init(pthread_cond_t *cond, const pthread_condattr_t *attr)
|
|
||||||
{
|
|
||||||
DosCreateEventSem(NULL, &cond->event_sem, DCE_POSTONE, FALSE);
|
|
||||||
|
|
||||||
cond->wait_count = 0;
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
static av_always_inline int pthread_cond_destroy(pthread_cond_t *cond)
|
|
||||||
{
|
|
||||||
DosCloseEventSem(cond->event_sem);
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
static av_always_inline int pthread_cond_signal(pthread_cond_t *cond)
|
|
||||||
{
|
|
||||||
if (cond->wait_count > 0) {
|
|
||||||
DosPostEventSem(cond->event_sem);
|
|
||||||
|
|
||||||
cond->wait_count--;
|
|
||||||
}
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
static av_always_inline int pthread_cond_broadcast(pthread_cond_t *cond)
|
|
||||||
{
|
|
||||||
while (cond->wait_count > 0) {
|
|
||||||
DosPostEventSem(cond->event_sem);
|
|
||||||
|
|
||||||
cond->wait_count--;
|
|
||||||
}
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
static av_always_inline int pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex)
|
|
||||||
{
|
|
||||||
cond->wait_count++;
|
|
||||||
|
|
||||||
pthread_mutex_unlock(mutex);
|
|
||||||
|
|
||||||
DosWaitEventSem(cond->event_sem, SEM_INDEFINITE_WAIT);
|
|
||||||
|
|
||||||
pthread_mutex_lock(mutex);
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
#endif /* AVCODEC_OS2PTHREADS_H */
|
|
||||||
@@ -1,10 +0,0 @@
|
|||||||
#!/bin/sh
|
|
||||||
|
|
||||||
n=10
|
|
||||||
|
|
||||||
case "$1" in
|
|
||||||
-n) n=$2; shift 2 ;;
|
|
||||||
-n*) n=${1#-n}; shift ;;
|
|
||||||
esac
|
|
||||||
|
|
||||||
exec sed ${n}q "$@"
|
|
||||||
@@ -1,34 +0,0 @@
|
|||||||
/*
|
|
||||||
* This file is part of FFmpeg.
|
|
||||||
*
|
|
||||||
* FFmpeg is free software; you can redistribute it and/or
|
|
||||||
* modify it under the terms of the GNU Lesser General Public
|
|
||||||
* License as published by the Free Software Foundation; either
|
|
||||||
* version 2.1 of the License, or (at your option) any later version.
|
|
||||||
*
|
|
||||||
* FFmpeg is distributed in the hope that it will be useful,
|
|
||||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
||||||
* Lesser General Public License for more details.
|
|
||||||
*
|
|
||||||
* You should have received a copy of the GNU Lesser General Public
|
|
||||||
* License along with FFmpeg; if not, write to the Free Software
|
|
||||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
||||||
*/
|
|
||||||
|
|
||||||
int plan9_main(int argc, char **argv);
|
|
||||||
|
|
||||||
#undef main
|
|
||||||
int main(int argc, char **argv)
|
|
||||||
{
|
|
||||||
/* The setfcr() function in lib9 is broken, must use asm. */
|
|
||||||
#ifdef __i386
|
|
||||||
short fcr;
|
|
||||||
__asm__ volatile ("fstcw %0 \n"
|
|
||||||
"or $63, %0 \n"
|
|
||||||
"fldcw %0 \n"
|
|
||||||
: "=m"(fcr));
|
|
||||||
#endif
|
|
||||||
|
|
||||||
return plan9_main(argc, argv);
|
|
||||||
}
|
|
||||||
@@ -1,2 +0,0 @@
|
|||||||
#!/bin/sh
|
|
||||||
exec awk "BEGIN { for (i = 2; i < ARGC; i++) printf \"$1\", ARGV[i] }" "$@"
|
|
||||||
@@ -1,93 +0,0 @@
|
|||||||
/*
|
|
||||||
* C99-compatible strtod() implementation
|
|
||||||
* Copyright (c) 2012 Ronald S. Bultje <rsbultje@gmail.com>
|
|
||||||
*
|
|
||||||
* This file is part of FFmpeg.
|
|
||||||
*
|
|
||||||
* FFmpeg is free software; you can redistribute it and/or
|
|
||||||
* modify it under the terms of the GNU Lesser General Public
|
|
||||||
* License as published by the Free Software Foundation; either
|
|
||||||
* version 2.1 of the License, or (at your option) any later version.
|
|
||||||
*
|
|
||||||
* FFmpeg is distributed in the hope that it will be useful,
|
|
||||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
||||||
* Lesser General Public License for more details.
|
|
||||||
*
|
|
||||||
* You should have received a copy of the GNU Lesser General Public
|
|
||||||
* License along with FFmpeg; if not, write to the Free Software
|
|
||||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
||||||
*/
|
|
||||||
|
|
||||||
#include <limits.h>
|
|
||||||
#include <stdlib.h>
|
|
||||||
|
|
||||||
#include "libavutil/avstring.h"
|
|
||||||
#include "libavutil/mathematics.h"
|
|
||||||
|
|
||||||
static char *check_nan_suffix(char *s)
|
|
||||||
{
|
|
||||||
char *start = s;
|
|
||||||
|
|
||||||
if (*s++ != '(')
|
|
||||||
return start;
|
|
||||||
|
|
||||||
while ((*s >= 'a' && *s <= 'z') || (*s >= 'A' && *s <= 'Z') ||
|
|
||||||
(*s >= '0' && *s <= '9') || *s == '_')
|
|
||||||
s++;
|
|
||||||
|
|
||||||
return *s == ')' ? s + 1 : start;
|
|
||||||
}
|
|
||||||
|
|
||||||
#undef strtod
|
|
||||||
double strtod(const char *, char **);
|
|
||||||
|
|
||||||
double avpriv_strtod(const char *nptr, char **endptr)
|
|
||||||
{
|
|
||||||
char *end;
|
|
||||||
double res;
|
|
||||||
|
|
||||||
/* Skip leading spaces */
|
|
||||||
while (av_isspace(*nptr))
|
|
||||||
nptr++;
|
|
||||||
|
|
||||||
if (!av_strncasecmp(nptr, "infinity", 8)) {
|
|
||||||
end = nptr + 8;
|
|
||||||
res = INFINITY;
|
|
||||||
} else if (!av_strncasecmp(nptr, "inf", 3)) {
|
|
||||||
end = nptr + 3;
|
|
||||||
res = INFINITY;
|
|
||||||
} else if (!av_strncasecmp(nptr, "+infinity", 9)) {
|
|
||||||
end = nptr + 9;
|
|
||||||
res = INFINITY;
|
|
||||||
} else if (!av_strncasecmp(nptr, "+inf", 4)) {
|
|
||||||
end = nptr + 4;
|
|
||||||
res = INFINITY;
|
|
||||||
} else if (!av_strncasecmp(nptr, "-infinity", 9)) {
|
|
||||||
end = nptr + 9;
|
|
||||||
res = -INFINITY;
|
|
||||||
} else if (!av_strncasecmp(nptr, "-inf", 4)) {
|
|
||||||
end = nptr + 4;
|
|
||||||
res = -INFINITY;
|
|
||||||
} else if (!av_strncasecmp(nptr, "nan", 3)) {
|
|
||||||
end = check_nan_suffix(nptr + 3);
|
|
||||||
res = NAN;
|
|
||||||
} else if (!av_strncasecmp(nptr, "+nan", 4) ||
|
|
||||||
!av_strncasecmp(nptr, "-nan", 4)) {
|
|
||||||
end = check_nan_suffix(nptr + 4);
|
|
||||||
res = NAN;
|
|
||||||
} else if (!av_strncasecmp(nptr, "0x", 2) ||
|
|
||||||
!av_strncasecmp(nptr, "-0x", 3) ||
|
|
||||||
!av_strncasecmp(nptr, "+0x", 3)) {
|
|
||||||
/* FIXME this doesn't handle exponents, non-integers (float/double)
|
|
||||||
* and numbers too large for long long */
|
|
||||||
res = strtoll(nptr, &end, 16);
|
|
||||||
} else {
|
|
||||||
res = strtod(nptr, &end);
|
|
||||||
}
|
|
||||||
|
|
||||||
if (endptr)
|
|
||||||
*endptr = end;
|
|
||||||
|
|
||||||
return res;
|
|
||||||
}
|
|
||||||
@@ -1,7 +0,0 @@
|
|||||||
#include_next <math.h>
|
|
||||||
|
|
||||||
#undef INFINITY
|
|
||||||
#undef NAN
|
|
||||||
|
|
||||||
#define INFINITY (*(const float*)((const unsigned []){ 0x7f800000 }))
|
|
||||||
#define NAN (*(const float*)((const unsigned []){ 0x7fc00000 }))
|
|
||||||
@@ -1,26 +0,0 @@
|
|||||||
/*
|
|
||||||
* MSVC Compatible va_copy macro
|
|
||||||
* Copyright (c) 2012 Derek Buitenhuis
|
|
||||||
*
|
|
||||||
* This file is part of FFmpeg.
|
|
||||||
*
|
|
||||||
* FFmpeg is free software; you can redistribute it and/or
|
|
||||||
* modify it under the terms of the GNU Lesser General Public
|
|
||||||
* License as published by the Free Software Foundation; either
|
|
||||||
* version 2.1 of the License, or (at your option) any later version.
|
|
||||||
*
|
|
||||||
* FFmpeg is distributed in the hope that it will be useful,
|
|
||||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
||||||
* Lesser General Public License for more details.
|
|
||||||
*
|
|
||||||
* You should have received a copy of the GNU Lesser General Public
|
|
||||||
* License along with FFmpeg; if not, write to the Free Software
|
|
||||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
||||||
*/
|
|
||||||
|
|
||||||
#include <stdarg.h>
|
|
||||||
|
|
||||||
#if !defined(va_copy) && defined(_MSC_VER)
|
|
||||||
#define va_copy(dst, src) ((dst) = (src))
|
|
||||||
#endif
|
|
||||||
@@ -1,280 +0,0 @@
|
|||||||
/*
|
|
||||||
* Copyright (C) 2010-2011 x264 project
|
|
||||||
*
|
|
||||||
* Authors: Steven Walters <kemuri9@gmail.com>
|
|
||||||
* Pegasys Inc. <http://www.pegasys-inc.com>
|
|
||||||
*
|
|
||||||
* This file is part of FFmpeg.
|
|
||||||
*
|
|
||||||
* FFmpeg is free software; you can redistribute it and/or
|
|
||||||
* modify it under the terms of the GNU Lesser General Public
|
|
||||||
* License as published by the Free Software Foundation; either
|
|
||||||
* version 2.1 of the License, or (at your option) any later version.
|
|
||||||
*
|
|
||||||
* FFmpeg is distributed in the hope that it will be useful,
|
|
||||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
||||||
* Lesser General Public License for more details.
|
|
||||||
*
|
|
||||||
* You should have received a copy of the GNU Lesser General Public
|
|
||||||
* License along with FFmpeg; if not, write to the Free Software
|
|
||||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
||||||
*/
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @file
|
|
||||||
* w32threads to pthreads wrapper
|
|
||||||
*/
|
|
||||||
|
|
||||||
#ifndef LIBAV_W32PTHREADS_H
|
|
||||||
#define LIBAV_W32PTHREADS_H
|
|
||||||
|
|
||||||
/* Build up a pthread-like API using underlying Windows API. Have only static
|
|
||||||
* methods so as to not conflict with a potentially linked in pthread-win32
|
|
||||||
* library.
|
|
||||||
* As most functions here are used without checking return values,
|
|
||||||
* only implement return values as necessary. */
|
|
||||||
|
|
||||||
#define WIN32_LEAN_AND_MEAN
|
|
||||||
#include <windows.h>
|
|
||||||
#include <process.h>
|
|
||||||
|
|
||||||
#include "libavutil/common.h"
|
|
||||||
#include "libavutil/internal.h"
|
|
||||||
#include "libavutil/mem.h"
|
|
||||||
|
|
||||||
typedef struct pthread_t {
|
|
||||||
void *handle;
|
|
||||||
void *(*func)(void* arg);
|
|
||||||
void *arg;
|
|
||||||
void *ret;
|
|
||||||
} pthread_t;
|
|
||||||
|
|
||||||
/* the conditional variable api for windows 6.0+ uses critical sections and
|
|
||||||
* not mutexes */
|
|
||||||
typedef CRITICAL_SECTION pthread_mutex_t;
|
|
||||||
|
|
||||||
/* This is the CONDITIONAL_VARIABLE typedef for using Window's native
|
|
||||||
* conditional variables on kernels 6.0+.
|
|
||||||
* MinGW does not currently have this typedef. */
|
|
||||||
typedef struct pthread_cond_t {
|
|
||||||
void *ptr;
|
|
||||||
} pthread_cond_t;
|
|
||||||
|
|
||||||
/* function pointers to conditional variable API on windows 6.0+ kernels */
|
|
||||||
static void (WINAPI *cond_broadcast)(pthread_cond_t *cond);
|
|
||||||
static void (WINAPI *cond_init)(pthread_cond_t *cond);
|
|
||||||
static void (WINAPI *cond_signal)(pthread_cond_t *cond);
|
|
||||||
static BOOL (WINAPI *cond_wait)(pthread_cond_t *cond, pthread_mutex_t *mutex,
|
|
||||||
DWORD milliseconds);
|
|
||||||
|
|
||||||
static unsigned __stdcall attribute_align_arg win32thread_worker(void *arg)
|
|
||||||
{
|
|
||||||
pthread_t *h = arg;
|
|
||||||
h->ret = h->func(h->arg);
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
static int pthread_create(pthread_t *thread, const void *unused_attr,
|
|
||||||
void *(*start_routine)(void*), void *arg)
|
|
||||||
{
|
|
||||||
thread->func = start_routine;
|
|
||||||
thread->arg = arg;
|
|
||||||
thread->handle = (void*)_beginthreadex(NULL, 0, win32thread_worker, thread,
|
|
||||||
0, NULL);
|
|
||||||
return !thread->handle;
|
|
||||||
}
|
|
||||||
|
|
||||||
static void pthread_join(pthread_t thread, void **value_ptr)
|
|
||||||
{
|
|
||||||
DWORD ret = WaitForSingleObject(thread.handle, INFINITE);
|
|
||||||
if (ret != WAIT_OBJECT_0)
|
|
||||||
return;
|
|
||||||
if (value_ptr)
|
|
||||||
*value_ptr = thread.ret;
|
|
||||||
CloseHandle(thread.handle);
|
|
||||||
}
|
|
||||||
|
|
||||||
static inline int pthread_mutex_init(pthread_mutex_t *m, void* attr)
|
|
||||||
{
|
|
||||||
InitializeCriticalSection(m);
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
static inline int pthread_mutex_destroy(pthread_mutex_t *m)
|
|
||||||
{
|
|
||||||
DeleteCriticalSection(m);
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
static inline int pthread_mutex_lock(pthread_mutex_t *m)
|
|
||||||
{
|
|
||||||
EnterCriticalSection(m);
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
static inline int pthread_mutex_unlock(pthread_mutex_t *m)
|
|
||||||
{
|
|
||||||
LeaveCriticalSection(m);
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* for pre-Windows 6.0 platforms we need to define and use our own condition
|
|
||||||
* variable and api */
|
|
||||||
typedef struct win32_cond_t {
|
|
||||||
pthread_mutex_t mtx_broadcast;
|
|
||||||
pthread_mutex_t mtx_waiter_count;
|
|
||||||
volatile int waiter_count;
|
|
||||||
HANDLE semaphore;
|
|
||||||
HANDLE waiters_done;
|
|
||||||
volatile int is_broadcast;
|
|
||||||
} win32_cond_t;
|
|
||||||
|
|
||||||
static void pthread_cond_init(pthread_cond_t *cond, const void *unused_attr)
|
|
||||||
{
|
|
||||||
win32_cond_t *win32_cond = NULL;
|
|
||||||
if (cond_init) {
|
|
||||||
cond_init(cond);
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* non native condition variables */
|
|
||||||
win32_cond = av_mallocz(sizeof(win32_cond_t));
|
|
||||||
if (!win32_cond)
|
|
||||||
return;
|
|
||||||
cond->ptr = win32_cond;
|
|
||||||
win32_cond->semaphore = CreateSemaphore(NULL, 0, 0x7fffffff, NULL);
|
|
||||||
if (!win32_cond->semaphore)
|
|
||||||
return;
|
|
||||||
win32_cond->waiters_done = CreateEvent(NULL, TRUE, FALSE, NULL);
|
|
||||||
if (!win32_cond->waiters_done)
|
|
||||||
return;
|
|
||||||
|
|
||||||
pthread_mutex_init(&win32_cond->mtx_waiter_count, NULL);
|
|
||||||
pthread_mutex_init(&win32_cond->mtx_broadcast, NULL);
|
|
||||||
}
|
|
||||||
|
|
||||||
static void pthread_cond_destroy(pthread_cond_t *cond)
|
|
||||||
{
|
|
||||||
win32_cond_t *win32_cond = cond->ptr;
|
|
||||||
/* native condition variables do not destroy */
|
|
||||||
if (cond_init)
|
|
||||||
return;
|
|
||||||
|
|
||||||
/* non native condition variables */
|
|
||||||
CloseHandle(win32_cond->semaphore);
|
|
||||||
CloseHandle(win32_cond->waiters_done);
|
|
||||||
pthread_mutex_destroy(&win32_cond->mtx_waiter_count);
|
|
||||||
pthread_mutex_destroy(&win32_cond->mtx_broadcast);
|
|
||||||
av_freep(&win32_cond);
|
|
||||||
cond->ptr = NULL;
|
|
||||||
}
|
|
||||||
|
|
||||||
static void pthread_cond_broadcast(pthread_cond_t *cond)
|
|
||||||
{
|
|
||||||
win32_cond_t *win32_cond = cond->ptr;
|
|
||||||
int have_waiter;
|
|
||||||
|
|
||||||
if (cond_broadcast) {
|
|
||||||
cond_broadcast(cond);
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* non native condition variables */
|
|
||||||
pthread_mutex_lock(&win32_cond->mtx_broadcast);
|
|
||||||
pthread_mutex_lock(&win32_cond->mtx_waiter_count);
|
|
||||||
have_waiter = 0;
|
|
||||||
|
|
||||||
if (win32_cond->waiter_count) {
|
|
||||||
win32_cond->is_broadcast = 1;
|
|
||||||
have_waiter = 1;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (have_waiter) {
|
|
||||||
ReleaseSemaphore(win32_cond->semaphore, win32_cond->waiter_count, NULL);
|
|
||||||
pthread_mutex_unlock(&win32_cond->mtx_waiter_count);
|
|
||||||
WaitForSingleObject(win32_cond->waiters_done, INFINITE);
|
|
||||||
ResetEvent(win32_cond->waiters_done);
|
|
||||||
win32_cond->is_broadcast = 0;
|
|
||||||
} else
|
|
||||||
pthread_mutex_unlock(&win32_cond->mtx_waiter_count);
|
|
||||||
pthread_mutex_unlock(&win32_cond->mtx_broadcast);
|
|
||||||
}
|
|
||||||
|
|
||||||
static int pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex)
|
|
||||||
{
|
|
||||||
win32_cond_t *win32_cond = cond->ptr;
|
|
||||||
int last_waiter;
|
|
||||||
if (cond_wait) {
|
|
||||||
cond_wait(cond, mutex, INFINITE);
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* non native condition variables */
|
|
||||||
pthread_mutex_lock(&win32_cond->mtx_broadcast);
|
|
||||||
pthread_mutex_lock(&win32_cond->mtx_waiter_count);
|
|
||||||
win32_cond->waiter_count++;
|
|
||||||
pthread_mutex_unlock(&win32_cond->mtx_waiter_count);
|
|
||||||
pthread_mutex_unlock(&win32_cond->mtx_broadcast);
|
|
||||||
|
|
||||||
// unlock the external mutex
|
|
||||||
pthread_mutex_unlock(mutex);
|
|
||||||
WaitForSingleObject(win32_cond->semaphore, INFINITE);
|
|
||||||
|
|
||||||
pthread_mutex_lock(&win32_cond->mtx_waiter_count);
|
|
||||||
win32_cond->waiter_count--;
|
|
||||||
last_waiter = !win32_cond->waiter_count || !win32_cond->is_broadcast;
|
|
||||||
pthread_mutex_unlock(&win32_cond->mtx_waiter_count);
|
|
||||||
|
|
||||||
if (last_waiter)
|
|
||||||
SetEvent(win32_cond->waiters_done);
|
|
||||||
|
|
||||||
// lock the external mutex
|
|
||||||
return pthread_mutex_lock(mutex);
|
|
||||||
}
|
|
||||||
|
|
||||||
static void pthread_cond_signal(pthread_cond_t *cond)
|
|
||||||
{
|
|
||||||
win32_cond_t *win32_cond = cond->ptr;
|
|
||||||
int have_waiter;
|
|
||||||
if (cond_signal) {
|
|
||||||
cond_signal(cond);
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
|
|
||||||
pthread_mutex_lock(&win32_cond->mtx_broadcast);
|
|
||||||
|
|
||||||
/* non-native condition variables */
|
|
||||||
pthread_mutex_lock(&win32_cond->mtx_waiter_count);
|
|
||||||
have_waiter = win32_cond->waiter_count;
|
|
||||||
pthread_mutex_unlock(&win32_cond->mtx_waiter_count);
|
|
||||||
|
|
||||||
if (have_waiter) {
|
|
||||||
ReleaseSemaphore(win32_cond->semaphore, 1, NULL);
|
|
||||||
WaitForSingleObject(win32_cond->waiters_done, INFINITE);
|
|
||||||
ResetEvent(win32_cond->waiters_done);
|
|
||||||
}
|
|
||||||
|
|
||||||
pthread_mutex_unlock(&win32_cond->mtx_broadcast);
|
|
||||||
}
|
|
||||||
|
|
||||||
static void w32thread_init(void)
|
|
||||||
{
|
|
||||||
#if _WIN32_WINNT < 0x0600
|
|
||||||
HANDLE kernel_dll = GetModuleHandle(TEXT("kernel32.dll"));
|
|
||||||
/* if one is available, then they should all be available */
|
|
||||||
cond_init =
|
|
||||||
(void*)GetProcAddress(kernel_dll, "InitializeConditionVariable");
|
|
||||||
cond_broadcast =
|
|
||||||
(void*)GetProcAddress(kernel_dll, "WakeAllConditionVariable");
|
|
||||||
cond_signal =
|
|
||||||
(void*)GetProcAddress(kernel_dll, "WakeConditionVariable");
|
|
||||||
cond_wait =
|
|
||||||
(void*)GetProcAddress(kernel_dll, "SleepConditionVariableCS");
|
|
||||||
#else
|
|
||||||
cond_init = InitializeConditionVariable;
|
|
||||||
cond_broadcast = WakeAllConditionVariable;
|
|
||||||
cond_signal = WakeConditionVariable;
|
|
||||||
cond_wait = SleepConditionVariableCS;
|
|
||||||
#endif
|
|
||||||
|
|
||||||
}
|
|
||||||
|
|
||||||
#endif /* LIBAV_W32PTHREADS_H */
|
|
||||||
1584
doc/APIchanges
1584
doc/APIchanges
File diff suppressed because it is too large
Load Diff
120
doc/Makefile
120
doc/Makefile
@@ -1,120 +0,0 @@
|
|||||||
LIBRARIES-$(CONFIG_AVUTIL) += libavutil
|
|
||||||
LIBRARIES-$(CONFIG_SWSCALE) += libswscale
|
|
||||||
LIBRARIES-$(CONFIG_SWRESAMPLE) += libswresample
|
|
||||||
LIBRARIES-$(CONFIG_AVCODEC) += libavcodec
|
|
||||||
LIBRARIES-$(CONFIG_AVFORMAT) += libavformat
|
|
||||||
LIBRARIES-$(CONFIG_AVDEVICE) += libavdevice
|
|
||||||
LIBRARIES-$(CONFIG_AVFILTER) += libavfilter
|
|
||||||
|
|
||||||
COMPONENTS-$(CONFIG_AVUTIL) += ffmpeg-utils
|
|
||||||
COMPONENTS-$(CONFIG_SWSCALE) += ffmpeg-scaler
|
|
||||||
COMPONENTS-$(CONFIG_SWRESAMPLE) += ffmpeg-resampler
|
|
||||||
COMPONENTS-$(CONFIG_AVCODEC) += ffmpeg-codecs ffmpeg-bitstream-filters
|
|
||||||
COMPONENTS-$(CONFIG_AVFORMAT) += ffmpeg-formats ffmpeg-protocols
|
|
||||||
COMPONENTS-$(CONFIG_AVDEVICE) += ffmpeg-devices
|
|
||||||
COMPONENTS-$(CONFIG_AVFILTER) += ffmpeg-filters
|
|
||||||
|
|
||||||
MANPAGES1 = $(PROGS-yes:%=doc/%.1) $(PROGS-yes:%=doc/%-all.1) $(COMPONENTS-yes:%=doc/%.1)
|
|
||||||
MANPAGES3 = $(LIBRARIES-yes:%=doc/%.3)
|
|
||||||
MANPAGES = $(MANPAGES1) $(MANPAGES3)
|
|
||||||
PODPAGES = $(PROGS-yes:%=doc/%.pod) $(PROGS-yes:%=doc/%-all.pod) $(COMPONENTS-yes:%=doc/%.pod) $(LIBRARIES-yes:%=doc/%.pod)
|
|
||||||
HTMLPAGES = $(PROGS-yes:%=doc/%.html) $(PROGS-yes:%=doc/%-all.html) $(COMPONENTS-yes:%=doc/%.html) $(LIBRARIES-yes:%=doc/%.html) \
|
|
||||||
doc/developer.html \
|
|
||||||
doc/faq.html \
|
|
||||||
doc/fate.html \
|
|
||||||
doc/general.html \
|
|
||||||
doc/git-howto.html \
|
|
||||||
doc/nut.html \
|
|
||||||
doc/platform.html \
|
|
||||||
|
|
||||||
TXTPAGES = doc/fate.txt \
|
|
||||||
|
|
||||||
|
|
||||||
DOCS-$(CONFIG_HTMLPAGES) += $(HTMLPAGES)
|
|
||||||
DOCS-$(CONFIG_PODPAGES) += $(PODPAGES)
|
|
||||||
DOCS-$(CONFIG_MANPAGES) += $(MANPAGES)
|
|
||||||
DOCS-$(CONFIG_TXTPAGES) += $(TXTPAGES)
|
|
||||||
DOCS = $(DOCS-yes)
|
|
||||||
|
|
||||||
all-$(CONFIG_DOC): doc
|
|
||||||
|
|
||||||
doc: documentation
|
|
||||||
|
|
||||||
apidoc: doc/doxy/html
|
|
||||||
documentation: $(DOCS)
|
|
||||||
|
|
||||||
TEXIDEP = awk '/^@(verbatim)?include/ { printf "$@: $(@D)/%s\n", $$2 }' <$< >$(@:%=%.d)
|
|
||||||
|
|
||||||
doc/%.txt: TAG = TXT
|
|
||||||
doc/%.txt: doc/%.texi
|
|
||||||
$(Q)$(TEXIDEP)
|
|
||||||
$(M)makeinfo --force --no-headers -o $@ $< 2>/dev/null
|
|
||||||
|
|
||||||
GENTEXI = format codec
|
|
||||||
GENTEXI := $(GENTEXI:%=doc/avoptions_%.texi)
|
|
||||||
|
|
||||||
$(GENTEXI): TAG = GENTEXI
|
|
||||||
$(GENTEXI): doc/avoptions_%.texi: doc/print_options$(HOSTEXESUF)
|
|
||||||
$(M)doc/print_options $* > $@
|
|
||||||
|
|
||||||
doc/%.html: TAG = HTML
|
|
||||||
doc/%.html: doc/%.texi $(SRC_PATH)/doc/t2h.init $(GENTEXI)
|
|
||||||
$(Q)$(TEXIDEP)
|
|
||||||
$(M)texi2html -I doc -monolithic --D=config-not-all --init-file $(SRC_PATH)/doc/t2h.init --output $@ $<
|
|
||||||
|
|
||||||
doc/%-all.html: TAG = HTML
|
|
||||||
doc/%-all.html: doc/%.texi $(SRC_PATH)/doc/t2h.init $(GENTEXI)
|
|
||||||
$(Q)$(TEXIDEP)
|
|
||||||
$(M)texi2html -I doc -monolithic --D=config-all --init-file $(SRC_PATH)/doc/t2h.init --output $@ $<
|
|
||||||
|
|
||||||
doc/%.pod: TAG = POD
|
|
||||||
doc/%.pod: doc/%.texi $(SRC_PATH)/doc/texi2pod.pl $(GENTEXI)
|
|
||||||
$(Q)$(TEXIDEP)
|
|
||||||
$(M)perl $(SRC_PATH)/doc/texi2pod.pl -Dconfig-not-all=yes -Idoc $< $@
|
|
||||||
|
|
||||||
doc/%-all.pod: TAG = POD
|
|
||||||
doc/%-all.pod: doc/%.texi $(SRC_PATH)/doc/texi2pod.pl $(GENTEXI)
|
|
||||||
$(Q)$(TEXIDEP)
|
|
||||||
$(M)perl $(SRC_PATH)/doc/texi2pod.pl -Dconfig-all=yes -Idoc $< $@
|
|
||||||
|
|
||||||
doc/%.1 doc/%.3: TAG = MAN
|
|
||||||
doc/%.1: doc/%.pod $(GENTEXI)
|
|
||||||
$(M)pod2man --section=1 --center=" " --release=" " $< > $@
|
|
||||||
doc/%.3: doc/%.pod $(GENTEXI)
|
|
||||||
$(M)pod2man --section=3 --center=" " --release=" " $< > $@
|
|
||||||
|
|
||||||
$(DOCS) doc/doxy/html: | doc/
|
|
||||||
|
|
||||||
doc/doxy/html: $(SRC_PATH)/doc/Doxyfile $(INSTHEADERS)
|
|
||||||
$(M)$(SRC_PATH)/doc/doxy-wrapper.sh $(SRC_PATH) $^
|
|
||||||
|
|
||||||
install-man:
|
|
||||||
|
|
||||||
ifdef CONFIG_MANPAGES
|
|
||||||
install-progs-$(CONFIG_DOC): install-man
|
|
||||||
|
|
||||||
install-man: $(MANPAGES)
|
|
||||||
$(Q)mkdir -p "$(MANDIR)/man1"
|
|
||||||
$(INSTALL) -m 644 $(MANPAGES1) "$(MANDIR)/man1"
|
|
||||||
$(Q)mkdir -p "$(MANDIR)/man3"
|
|
||||||
$(INSTALL) -m 644 $(MANPAGES3) "$(MANDIR)/man3"
|
|
||||||
endif
|
|
||||||
|
|
||||||
uninstall: uninstall-man
|
|
||||||
|
|
||||||
uninstall-man:
|
|
||||||
$(RM) $(addprefix "$(MANDIR)/man1/",$(MANPAGES1))
|
|
||||||
$(RM) $(addprefix "$(MANDIR)/man3/",$(MANPAGES3))
|
|
||||||
|
|
||||||
clean:: docclean
|
|
||||||
|
|
||||||
distclean:: docclean
|
|
||||||
$(RM) doc/config.texi
|
|
||||||
|
|
||||||
docclean:
|
|
||||||
$(RM) $(TXTPAGES) doc/*.html doc/*.pod doc/*.1 doc/*.3 $(CLEANSUFFIXES:%=doc/%) doc/avoptions_*.texi
|
|
||||||
$(RM) -r doc/doxy/html
|
|
||||||
|
|
||||||
-include $(wildcard $(DOCS:%=%.d))
|
|
||||||
|
|
||||||
.PHONY: apidoc doc documentation
|
|
||||||
@@ -1,20 +0,0 @@
|
|||||||
Release Notes
|
|
||||||
=============
|
|
||||||
|
|
||||||
* 2.0 "Nameless" July, 2013
|
|
||||||
|
|
||||||
|
|
||||||
General notes
|
|
||||||
-------------
|
|
||||||
See the Changelog file for a list of significant changes. Note, there
|
|
||||||
are many more new features and bugfixes than whats listed there.
|
|
||||||
|
|
||||||
Bugreports against FFmpeg git master or the most recent FFmpeg release are
|
|
||||||
accepted. If you are experiencing issues with any formally released version of
|
|
||||||
FFmpeg, please try git master to check if the issue still exists. If it does,
|
|
||||||
make your report against the development code following the usual bug reporting
|
|
||||||
guidelines.
|
|
||||||
|
|
||||||
AVI/AVXSynth
|
|
||||||
--------
|
|
||||||
If you want to use FFmpeg with AVISynth, you need AVISynth 2.6.0 at minimum.
|
|
||||||
90
doc/TODO
Normal file
90
doc/TODO
Normal file
@@ -0,0 +1,90 @@
|
|||||||
|
ffmpeg TODO list:
|
||||||
|
----------------
|
||||||
|
|
||||||
|
Fabrice's TODO list: (unordered)
|
||||||
|
-------------------
|
||||||
|
Short term:
|
||||||
|
|
||||||
|
- use AVFMTCTX_DISCARD_PKT in ffplay so that DV has a chance to work
|
||||||
|
- add RTSP regression test (both client and server)
|
||||||
|
- make ffserver allocate AVFormatContext
|
||||||
|
- clean up (incompatible change, for 0.5.0):
|
||||||
|
* AVStream -> AVComponent
|
||||||
|
* AVFormatContext -> AVInputStream/AVOutputStream
|
||||||
|
* suppress rate_emu from AVCodecContext
|
||||||
|
- add new float/integer audio filterting and conversion : suppress
|
||||||
|
CODEC_ID_PCM_xxc and use CODEC_ID_RAWAUDIO.
|
||||||
|
- fix telecine and frame rate conversion
|
||||||
|
|
||||||
|
Long term (ask me if you want to help):
|
||||||
|
|
||||||
|
- commit new imgconvert API and new PIX_FMT_xxx alpha formats
|
||||||
|
- commit new LGPL'ed float and integer-only AC3 decoder
|
||||||
|
- add WMA integer-only decoder
|
||||||
|
- add new MPEG4-AAC audio decoder (both integer-only and float version)
|
||||||
|
|
||||||
|
Michael's TODO list: (unordered) (if anyone wanna help with sth, just ask)
|
||||||
|
-------------------
|
||||||
|
- optimize H264 CABAC
|
||||||
|
- more optimizations
|
||||||
|
- simper rate control
|
||||||
|
|
||||||
|
Francois' TODO list: (unordered, without any timeframe)
|
||||||
|
-------------------
|
||||||
|
- test MACE decoder against the openquicktime one as suggested by A'rpi
|
||||||
|
- BeOS audio input grabbing backend
|
||||||
|
- BeOS video input grabbing backend
|
||||||
|
- publish my BeOS libposix on BeBits so I can officially support ffserver :)
|
||||||
|
- check the whole code for thread-safety (global and init stuff)
|
||||||
|
|
||||||
|
Philip'a TODO list: (alphabetically ordered) (please help)
|
||||||
|
------------------
|
||||||
|
- Add a multi-ffm filetype so that feeds can be recorded into multiple files rather
|
||||||
|
than one big file.
|
||||||
|
- Authenticated users support -- where the authentication is in the URL
|
||||||
|
- Change ASF files so that the embedded timestamp in the frames is right rather
|
||||||
|
than being an offset from the start of the stream
|
||||||
|
- Make ffm files more resilient to changes in the codec structures so that you
|
||||||
|
can play old ffm files.
|
||||||
|
|
||||||
|
Baptiste's TODO list:
|
||||||
|
-----------------
|
||||||
|
- mov edit list support (AVEditList)
|
||||||
|
- YUV 10 bit per component support "2vuy"
|
||||||
|
- mxf muxer
|
||||||
|
- mpeg2 non linear quantizer
|
||||||
|
|
||||||
|
unassigned TODO: (unordered)
|
||||||
|
---------------
|
||||||
|
- use AVFrame for audio codecs too
|
||||||
|
- rework aviobuf.c buffering strategy and fix url_fskip
|
||||||
|
- generate optimal huffman tables for mjpeg encoding
|
||||||
|
- fix ffserver regression tests
|
||||||
|
- support xvids motion estimation
|
||||||
|
- support x264s motion estimation
|
||||||
|
- support x264s rate control
|
||||||
|
- SNOW: non translational motion compensation
|
||||||
|
- SNOW: more optimal quantization
|
||||||
|
- SNOW: 4x4 block support
|
||||||
|
- SNOW: 1/8 pel motion compensation support
|
||||||
|
- SNOW: iterative motion estimation based on subsampled images
|
||||||
|
- SNOW: try B frames and MCTF and see how their PSNR/bitrate/complexity behaves
|
||||||
|
- SNOW: try to use the wavelet transformed MC-ed reference frame as context for the entropy coder
|
||||||
|
- SNOW: think about/analyize how to make snow use multiple cpus/threads
|
||||||
|
- SNOW: finish spec
|
||||||
|
- FLAC: lossy encoding (viterbi and naive scalar quantization)
|
||||||
|
- libavfilter
|
||||||
|
- JPEG2000 decoder & encoder
|
||||||
|
- MPEG4 GMC encoding support
|
||||||
|
- macroblock based pixel format (better cache locality, somewhat complex, one paper claimed it faster for high res)
|
||||||
|
- regression tests for codecs which do not have an encoder (I+P-frame bitstream in svn)
|
||||||
|
- add support for using mplayers video filters to ffmpeg
|
||||||
|
- H264 encoder
|
||||||
|
- per MB ratecontrol (so VCD and such do work better)
|
||||||
|
- write a script which iteratively changes all functions between always_inline and noinline and benchmarks the result to find the best set of inlined functions
|
||||||
|
- convert all the non SIMD asm into small asm vs. C testcases and submit them to the gcc devels so they can improve gcc
|
||||||
|
- generic audio mixing API
|
||||||
|
- extract PES packetizer from PS muxer and use it for new TS muxer
|
||||||
|
- implement automatic AVBistreamFilter activation
|
||||||
|
- make cabac encoder use bytestream (see http://trac.videolan.org/x264/changeset/?format=diff&new=651)
|
||||||
|
- merge imdct and windowing, the current code does considerable amounts of redundant work
|
||||||
@@ -1,11 +0,0 @@
|
|||||||
@chapter Authors
|
|
||||||
|
|
||||||
The FFmpeg developers.
|
|
||||||
|
|
||||||
For details about the authorship, see the Git history of the project
|
|
||||||
(git://source.ffmpeg.org/ffmpeg), e.g. by typing the command
|
|
||||||
@command{git log} in the FFmpeg source directory, or browsing the
|
|
||||||
online repository at @url{http://source.ffmpeg.org}.
|
|
||||||
|
|
||||||
Maintainers for the specific components are listed in the file
|
|
||||||
@file{MAINTAINERS} in the source code tree.
|
|
||||||
@@ -1,281 +0,0 @@
|
|||||||
All the numerical options, if not specified otherwise, accept a string
|
|
||||||
representing a number as input, which may be followed by one of the SI
|
|
||||||
unit prefixes, for example: 'K', 'M', or 'G'.
|
|
||||||
|
|
||||||
If 'i' is appended to the SI unit prefix, the complete prefix will be
|
|
||||||
interpreted as a unit prefix for binary multiplies, which are based on
|
|
||||||
powers of 1024 instead of powers of 1000. Appending 'B' to the SI unit
|
|
||||||
prefix multiplies the value by 8. This allows using, for example:
|
|
||||||
'KB', 'MiB', 'G' and 'B' as number suffixes.
|
|
||||||
|
|
||||||
Options which do not take arguments are boolean options, and set the
|
|
||||||
corresponding value to true. They can be set to false by prefixing
|
|
||||||
the option name with "no". For example using "-nofoo"
|
|
||||||
will set the boolean option with name "foo" to false.
|
|
||||||
|
|
||||||
@anchor{Stream specifiers}
|
|
||||||
@section Stream specifiers
|
|
||||||
Some options are applied per-stream, e.g. bitrate or codec. Stream specifiers
|
|
||||||
are used to precisely specify which stream(s) a given option belongs to.
|
|
||||||
|
|
||||||
A stream specifier is a string generally appended to the option name and
|
|
||||||
separated from it by a colon. E.g. @code{-codec:a:1 ac3} contains the
|
|
||||||
@code{a:1} stream specifier, which matches the second audio stream. Therefore, it
|
|
||||||
would select the ac3 codec for the second audio stream.
|
|
||||||
|
|
||||||
A stream specifier can match several streams, so that the option is applied to all
|
|
||||||
of them. E.g. the stream specifier in @code{-b:a 128k} matches all audio
|
|
||||||
streams.
|
|
||||||
|
|
||||||
An empty stream specifier matches all streams. For example, @code{-codec copy}
|
|
||||||
or @code{-codec: copy} would copy all the streams without reencoding.
|
|
||||||
|
|
||||||
Possible forms of stream specifiers are:
|
|
||||||
@table @option
|
|
||||||
@item @var{stream_index}
|
|
||||||
Matches the stream with this index. E.g. @code{-threads:1 4} would set the
|
|
||||||
thread count for the second stream to 4.
|
|
||||||
@item @var{stream_type}[:@var{stream_index}]
|
|
||||||
@var{stream_type} is one of following: 'v' for video, 'a' for audio, 's' for subtitle,
|
|
||||||
'd' for data, and 't' for attachments. If @var{stream_index} is given, then it matches
|
|
||||||
stream number @var{stream_index} of this type. Otherwise, it matches all
|
|
||||||
streams of this type.
|
|
||||||
@item p:@var{program_id}[:@var{stream_index}]
|
|
||||||
If @var{stream_index} is given, then it matches the stream with number @var{stream_index}
|
|
||||||
in the program with the id @var{program_id}. Otherwise, it matches all streams in the
|
|
||||||
program.
|
|
||||||
@item #@var{stream_id}
|
|
||||||
Matches the stream by a format-specific ID.
|
|
||||||
@end table
|
|
||||||
|
|
||||||
@section Generic options
|
|
||||||
|
|
||||||
These options are shared amongst the ff* tools.
|
|
||||||
|
|
||||||
@table @option
|
|
||||||
|
|
||||||
@item -L
|
|
||||||
Show license.
|
|
||||||
|
|
||||||
@item -h, -?, -help, --help [@var{arg}]
|
|
||||||
Show help. An optional parameter may be specified to print help about a specific
|
|
||||||
item.
|
|
||||||
|
|
||||||
Possible values of @var{arg} are:
|
|
||||||
@table @option
|
|
||||||
@item decoder=@var{decoder_name}
|
|
||||||
Print detailed information about the decoder named @var{decoder_name}. Use the
|
|
||||||
@option{-decoders} option to get a list of all decoders.
|
|
||||||
|
|
||||||
@item encoder=@var{encoder_name}
|
|
||||||
Print detailed information about the encoder named @var{encoder_name}. Use the
|
|
||||||
@option{-encoders} option to get a list of all encoders.
|
|
||||||
|
|
||||||
@item demuxer=@var{demuxer_name}
|
|
||||||
Print detailed information about the demuxer named @var{demuxer_name}. Use the
|
|
||||||
@option{-formats} option to get a list of all demuxers and muxers.
|
|
||||||
|
|
||||||
@item muxer=@var{muxer_name}
|
|
||||||
Print detailed information about the muxer named @var{muxer_name}. Use the
|
|
||||||
@option{-formats} option to get a list of all muxers and demuxers.
|
|
||||||
|
|
||||||
@item filter=@var{filter_name}
|
|
||||||
Print detailed information about the filter name @var{filter_name}. Use the
|
|
||||||
@option{-filters} option to get a list of all filters.
|
|
||||||
|
|
||||||
@end table
|
|
||||||
|
|
||||||
@item -version
|
|
||||||
Show version.
|
|
||||||
|
|
||||||
@item -formats
|
|
||||||
Show available formats.
|
|
||||||
|
|
||||||
@item -codecs
|
|
||||||
Show all codecs known to libavcodec.
|
|
||||||
|
|
||||||
Note that the term 'codec' is used throughout this documentation as a shortcut
|
|
||||||
for what is more correctly called a media bitstream format.
|
|
||||||
|
|
||||||
@item -decoders
|
|
||||||
Show available decoders.
|
|
||||||
|
|
||||||
@item -encoders
|
|
||||||
Show all available encoders.
|
|
||||||
|
|
||||||
@item -bsfs
|
|
||||||
Show available bitstream filters.
|
|
||||||
|
|
||||||
@item -protocols
|
|
||||||
Show available protocols.
|
|
||||||
|
|
||||||
@item -filters
|
|
||||||
Show available libavfilter filters.
|
|
||||||
|
|
||||||
@item -pix_fmts
|
|
||||||
Show available pixel formats.
|
|
||||||
|
|
||||||
@item -sample_fmts
|
|
||||||
Show available sample formats.
|
|
||||||
|
|
||||||
@item -layouts
|
|
||||||
Show channel names and standard channel layouts.
|
|
||||||
|
|
||||||
@item -loglevel [repeat+]@var{loglevel} | -v [repeat+]@var{loglevel}
|
|
||||||
Set the logging level used by the library.
|
|
||||||
Adding "repeat+" indicates that repeated log output should not be compressed
|
|
||||||
to the first line and the "Last message repeated n times" line will be
|
|
||||||
omitted. "repeat" can also be used alone.
|
|
||||||
If "repeat" is used alone, and with no prior loglevel set, the default
|
|
||||||
loglevel will be used. If multiple loglevel parameters are given, using
|
|
||||||
'repeat' will not change the loglevel.
|
|
||||||
@var{loglevel} is a number or a string containing one of the following values:
|
|
||||||
@table @samp
|
|
||||||
@item quiet
|
|
||||||
Show nothing at all; be silent.
|
|
||||||
@item panic
|
|
||||||
Only show fatal errors which could lead the process to crash, such as
|
|
||||||
and assert failure. This is not currently used for anything.
|
|
||||||
@item fatal
|
|
||||||
Only show fatal errors. These are errors after which the process absolutely
|
|
||||||
cannot continue after.
|
|
||||||
@item error
|
|
||||||
Show all errors, including ones which can be recovered from.
|
|
||||||
@item warning
|
|
||||||
Show all warnings and errors. Any message related to possibly
|
|
||||||
incorrect or unexpected events will be shown.
|
|
||||||
@item info
|
|
||||||
Show informative messages during processing. This is in addition to
|
|
||||||
warnings and errors. This is the default value.
|
|
||||||
@item verbose
|
|
||||||
Same as @code{info}, except more verbose.
|
|
||||||
@item debug
|
|
||||||
Show everything, including debugging information.
|
|
||||||
@end table
|
|
||||||
|
|
||||||
By default the program logs to stderr, if coloring is supported by the
|
|
||||||
terminal, colors are used to mark errors and warnings. Log coloring
|
|
||||||
can be disabled setting the environment variable
|
|
||||||
@env{AV_LOG_FORCE_NOCOLOR} or @env{NO_COLOR}, or can be forced setting
|
|
||||||
the environment variable @env{AV_LOG_FORCE_COLOR}.
|
|
||||||
The use of the environment variable @env{NO_COLOR} is deprecated and
|
|
||||||
will be dropped in a following FFmpeg version.
|
|
||||||
|
|
||||||
@item -report
|
|
||||||
Dump full command line and console output to a file named
|
|
||||||
@code{@var{program}-@var{YYYYMMDD}-@var{HHMMSS}.log} in the current
|
|
||||||
directory.
|
|
||||||
This file can be useful for bug reports.
|
|
||||||
It also implies @code{-loglevel verbose}.
|
|
||||||
|
|
||||||
Setting the environment variable @code{FFREPORT} to any value has the
|
|
||||||
same effect. If the value is a ':'-separated key=value sequence, these
|
|
||||||
options will affect the report; options values must be escaped if they
|
|
||||||
contain special characters or the options delimiter ':' (see the
|
|
||||||
``Quoting and escaping'' section in the ffmpeg-utils manual). The
|
|
||||||
following option is recognized:
|
|
||||||
@table @option
|
|
||||||
@item file
|
|
||||||
set the file name to use for the report; @code{%p} is expanded to the name
|
|
||||||
of the program, @code{%t} is expanded to a timestamp, @code{%%} is expanded
|
|
||||||
to a plain @code{%}
|
|
||||||
@end table
|
|
||||||
|
|
||||||
Errors in parsing the environment variable are not fatal, and will not
|
|
||||||
appear in the report.
|
|
||||||
|
|
||||||
@item -cpuflags flags (@emph{global})
|
|
||||||
Allows setting and clearing cpu flags. This option is intended
|
|
||||||
for testing. Do not use it unless you know what you're doing.
|
|
||||||
@example
|
|
||||||
ffmpeg -cpuflags -sse+mmx ...
|
|
||||||
ffmpeg -cpuflags mmx ...
|
|
||||||
ffmpeg -cpuflags 0 ...
|
|
||||||
@end example
|
|
||||||
Possible flags for this option are:
|
|
||||||
@table @samp
|
|
||||||
@item x86
|
|
||||||
@table @samp
|
|
||||||
@item mmx
|
|
||||||
@item mmxext
|
|
||||||
@item sse
|
|
||||||
@item sse2
|
|
||||||
@item sse2slow
|
|
||||||
@item sse3
|
|
||||||
@item sse3slow
|
|
||||||
@item ssse3
|
|
||||||
@item atom
|
|
||||||
@item sse4.1
|
|
||||||
@item sse4.2
|
|
||||||
@item avx
|
|
||||||
@item xop
|
|
||||||
@item fma4
|
|
||||||
@item 3dnow
|
|
||||||
@item 3dnowext
|
|
||||||
@item cmov
|
|
||||||
@end table
|
|
||||||
@item ARM
|
|
||||||
@table @samp
|
|
||||||
@item armv5te
|
|
||||||
@item armv6
|
|
||||||
@item armv6t2
|
|
||||||
@item vfp
|
|
||||||
@item vfpv3
|
|
||||||
@item neon
|
|
||||||
@end table
|
|
||||||
@item PowerPC
|
|
||||||
@table @samp
|
|
||||||
@item altivec
|
|
||||||
@end table
|
|
||||||
@item Specific Processors
|
|
||||||
@table @samp
|
|
||||||
@item pentium2
|
|
||||||
@item pentium3
|
|
||||||
@item pentium4
|
|
||||||
@item k6
|
|
||||||
@item k62
|
|
||||||
@item athlon
|
|
||||||
@item athlonxp
|
|
||||||
@item k8
|
|
||||||
@end table
|
|
||||||
@end table
|
|
||||||
|
|
||||||
@item -opencl_options options (@emph{global})
|
|
||||||
Set OpenCL environment options. This option is only available when
|
|
||||||
FFmpeg has been compiled with @code{--enable-opencl}.
|
|
||||||
|
|
||||||
@var{options} must be a list of @var{key}=@var{value} option pairs
|
|
||||||
separated by ':'. See the ``OpenCL Options'' section in the
|
|
||||||
ffmpeg-utils manual for the list of supported options.
|
|
||||||
@end table
|
|
||||||
|
|
||||||
@section AVOptions
|
|
||||||
|
|
||||||
These options are provided directly by the libavformat, libavdevice and
|
|
||||||
libavcodec libraries. To see the list of available AVOptions, use the
|
|
||||||
@option{-help} option. They are separated into two categories:
|
|
||||||
@table @option
|
|
||||||
@item generic
|
|
||||||
These options can be set for any container, codec or device. Generic options
|
|
||||||
are listed under AVFormatContext options for containers/devices and under
|
|
||||||
AVCodecContext options for codecs.
|
|
||||||
@item private
|
|
||||||
These options are specific to the given container, device or codec. Private
|
|
||||||
options are listed under their corresponding containers/devices/codecs.
|
|
||||||
@end table
|
|
||||||
|
|
||||||
For example to write an ID3v2.3 header instead of a default ID3v2.4 to
|
|
||||||
an MP3 file, use the @option{id3v2_version} private option of the MP3
|
|
||||||
muxer:
|
|
||||||
@example
|
|
||||||
ffmpeg -i input.flac -id3v2_version 3 out.mp3
|
|
||||||
@end example
|
|
||||||
|
|
||||||
All codec AVOptions are obviously per-stream, so the chapter on stream
|
|
||||||
specifiers applies to them
|
|
||||||
|
|
||||||
Note @option{-nooption} syntax cannot be used for boolean AVOptions,
|
|
||||||
use @option{-option 0}/@option{-option 1}.
|
|
||||||
|
|
||||||
Note2 old undocumented way of specifying per-stream AVOptions by prepending
|
|
||||||
v/a/s to the options name is now obsolete and will be removed soon.
|
|
||||||
@@ -19,6 +19,7 @@ integer.c 128bit integer math
|
|||||||
lls.c
|
lls.c
|
||||||
mathematics.c greatest common divisor, integer sqrt, integer log2, ...
|
mathematics.c greatest common divisor, integer sqrt, integer log2, ...
|
||||||
mem.c memory allocation routines with guaranteed alignment
|
mem.c memory allocation routines with guaranteed alignment
|
||||||
|
softfloat.c
|
||||||
|
|
||||||
Headers:
|
Headers:
|
||||||
bswap.h big/little/native-endian conversion code
|
bswap.h big/little/native-endian conversion code
|
||||||
|
|||||||
@@ -1,102 +0,0 @@
|
|||||||
@chapter Bitstream Filters
|
|
||||||
@c man begin BITSTREAM FILTERS
|
|
||||||
|
|
||||||
When you configure your FFmpeg build, all the supported bitstream
|
|
||||||
filters are enabled by default. You can list all available ones using
|
|
||||||
the configure option @code{--list-bsfs}.
|
|
||||||
|
|
||||||
You can disable all the bitstream filters using the configure option
|
|
||||||
@code{--disable-bsfs}, and selectively enable any bitstream filter using
|
|
||||||
the option @code{--enable-bsf=BSF}, or you can disable a particular
|
|
||||||
bitstream filter using the option @code{--disable-bsf=BSF}.
|
|
||||||
|
|
||||||
The option @code{-bsfs} of the ff* tools will display the list of
|
|
||||||
all the supported bitstream filters included in your build.
|
|
||||||
|
|
||||||
Below is a description of the currently available bitstream filters.
|
|
||||||
|
|
||||||
@section aac_adtstoasc
|
|
||||||
|
|
||||||
Convert MPEG-2/4 AAC ADTS to MPEG-4 Audio Specific Configuration
|
|
||||||
bitstream filter.
|
|
||||||
|
|
||||||
This filter creates an MPEG-4 AudioSpecificConfig from an MPEG-2/4
|
|
||||||
ADTS header and removes the ADTS header.
|
|
||||||
|
|
||||||
This is required for example when copying an AAC stream from a raw
|
|
||||||
ADTS AAC container to a FLV or a MOV/MP4 file.
|
|
||||||
|
|
||||||
@section chomp
|
|
||||||
|
|
||||||
Remove zero padding at the end of a packet.
|
|
||||||
|
|
||||||
@section dump_extradata
|
|
||||||
|
|
||||||
@section h264_mp4toannexb
|
|
||||||
|
|
||||||
Convert an H.264 bitstream from length prefixed mode to start code
|
|
||||||
prefixed mode (as defined in the Annex B of the ITU-T H.264
|
|
||||||
specification).
|
|
||||||
|
|
||||||
This is required by some streaming formats, typically the MPEG-2
|
|
||||||
transport stream format ("mpegts").
|
|
||||||
|
|
||||||
For example to remux an MP4 file containing an H.264 stream to mpegts
|
|
||||||
format with @command{ffmpeg}, you can use the command:
|
|
||||||
|
|
||||||
@example
|
|
||||||
ffmpeg -i INPUT.mp4 -codec copy -bsf:v h264_mp4toannexb OUTPUT.ts
|
|
||||||
@end example
|
|
||||||
|
|
||||||
@section imx_dump_header
|
|
||||||
|
|
||||||
@section mjpeg2jpeg
|
|
||||||
|
|
||||||
Convert MJPEG/AVI1 packets to full JPEG/JFIF packets.
|
|
||||||
|
|
||||||
MJPEG is a video codec wherein each video frame is essentially a
|
|
||||||
JPEG image. The individual frames can be extracted without loss,
|
|
||||||
e.g. by
|
|
||||||
|
|
||||||
@example
|
|
||||||
ffmpeg -i ../some_mjpeg.avi -c:v copy frames_%d.jpg
|
|
||||||
@end example
|
|
||||||
|
|
||||||
Unfortunately, these chunks are incomplete JPEG images, because
|
|
||||||
they lack the DHT segment required for decoding. Quoting from
|
|
||||||
@url{http://www.digitalpreservation.gov/formats/fdd/fdd000063.shtml}:
|
|
||||||
|
|
||||||
Avery Lee, writing in the rec.video.desktop newsgroup in 2001,
|
|
||||||
commented that "MJPEG, or at least the MJPEG in AVIs having the
|
|
||||||
MJPG fourcc, is restricted JPEG with a fixed -- and *omitted* --
|
|
||||||
Huffman table. The JPEG must be YCbCr colorspace, it must be 4:2:2,
|
|
||||||
and it must use basic Huffman encoding, not arithmetic or
|
|
||||||
progressive. . . . You can indeed extract the MJPEG frames and
|
|
||||||
decode them with a regular JPEG decoder, but you have to prepend
|
|
||||||
the DHT segment to them, or else the decoder won't have any idea
|
|
||||||
how to decompress the data. The exact table necessary is given in
|
|
||||||
the OpenDML spec."
|
|
||||||
|
|
||||||
This bitstream filter patches the header of frames extracted from an MJPEG
|
|
||||||
stream (carrying the AVI1 header ID and lacking a DHT segment) to
|
|
||||||
produce fully qualified JPEG images.
|
|
||||||
|
|
||||||
@example
|
|
||||||
ffmpeg -i mjpeg-movie.avi -c:v copy -bsf:v mjpeg2jpeg frame_%d.jpg
|
|
||||||
exiftran -i -9 frame*.jpg
|
|
||||||
ffmpeg -i frame_%d.jpg -c:v copy rotated.avi
|
|
||||||
@end example
|
|
||||||
|
|
||||||
@section mjpega_dump_header
|
|
||||||
|
|
||||||
@section movsub
|
|
||||||
|
|
||||||
@section mp3_header_compress
|
|
||||||
|
|
||||||
@section mp3_header_decompress
|
|
||||||
|
|
||||||
@section noise
|
|
||||||
|
|
||||||
@section remove_extradata
|
|
||||||
|
|
||||||
@c man end BITSTREAM FILTERS
|
|
||||||
@@ -1,50 +0,0 @@
|
|||||||
FFmpeg currently uses a custom build system, this text attempts to document
|
|
||||||
some of its obscure features and options.
|
|
||||||
|
|
||||||
Makefile variables:
|
|
||||||
|
|
||||||
V
|
|
||||||
Disable the default terse mode, the full command issued by make and its
|
|
||||||
output will be shown on the screen.
|
|
||||||
|
|
||||||
DESTDIR
|
|
||||||
Destination directory for the install targets, useful to prepare packages
|
|
||||||
or install FFmpeg in cross-environments.
|
|
||||||
|
|
||||||
Makefile targets:
|
|
||||||
|
|
||||||
all
|
|
||||||
Default target, builds all the libraries and the executables.
|
|
||||||
|
|
||||||
fate
|
|
||||||
Run the fate test suite, note you must have installed it
|
|
||||||
|
|
||||||
fate-list
|
|
||||||
Will list all fate/regression test targets
|
|
||||||
|
|
||||||
install
|
|
||||||
Install headers, libraries and programs.
|
|
||||||
|
|
||||||
libavformat/output-example
|
|
||||||
Build the libavformat basic example.
|
|
||||||
|
|
||||||
libavcodec/api-example
|
|
||||||
Build the libavcodec basic example.
|
|
||||||
|
|
||||||
libswscale/swscale-test
|
|
||||||
Build the swscale self-test (useful also as example).
|
|
||||||
|
|
||||||
|
|
||||||
Useful standard make commands:
|
|
||||||
make -t <target>
|
|
||||||
Touch all files that otherwise would be build, this is useful to reduce
|
|
||||||
unneeded rebuilding when changing headers, but note you must force rebuilds
|
|
||||||
of files that actually need it by hand then.
|
|
||||||
|
|
||||||
make -j<num>
|
|
||||||
rebuild with multiple jobs at the same time. Faster on multi processor systems
|
|
||||||
|
|
||||||
make -k
|
|
||||||
continue build in case of errors, this is useful for the regression tests
|
|
||||||
sometimes but note it will still not run all reg tests.
|
|
||||||
|
|
||||||
1072
doc/codecs.texi
1072
doc/codecs.texi
File diff suppressed because it is too large
Load Diff
@@ -1,161 +0,0 @@
|
|||||||
@chapter Decoders
|
|
||||||
@c man begin DECODERS
|
|
||||||
|
|
||||||
Decoders are configured elements in FFmpeg which allow the decoding of
|
|
||||||
multimedia streams.
|
|
||||||
|
|
||||||
When you configure your FFmpeg build, all the supported native decoders
|
|
||||||
are enabled by default. Decoders requiring an external library must be enabled
|
|
||||||
manually via the corresponding @code{--enable-lib} option. You can list all
|
|
||||||
available decoders using the configure option @code{--list-decoders}.
|
|
||||||
|
|
||||||
You can disable all the decoders with the configure option
|
|
||||||
@code{--disable-decoders} and selectively enable / disable single decoders
|
|
||||||
with the options @code{--enable-decoder=@var{DECODER}} /
|
|
||||||
@code{--disable-decoder=@var{DECODER}}.
|
|
||||||
|
|
||||||
The option @code{-codecs} of the ff* tools will display the list of
|
|
||||||
enabled decoders.
|
|
||||||
|
|
||||||
@c man end DECODERS
|
|
||||||
|
|
||||||
@chapter Video Decoders
|
|
||||||
@c man begin VIDEO DECODERS
|
|
||||||
|
|
||||||
A description of some of the currently available video decoders
|
|
||||||
follows.
|
|
||||||
|
|
||||||
@section rawvideo
|
|
||||||
|
|
||||||
Raw video decoder.
|
|
||||||
|
|
||||||
This decoder decodes rawvideo streams.
|
|
||||||
|
|
||||||
@subsection Options
|
|
||||||
|
|
||||||
@table @option
|
|
||||||
@item top @var{top_field_first}
|
|
||||||
Specify the assumed field type of the input video.
|
|
||||||
@table @option
|
|
||||||
@item -1
|
|
||||||
the video is assumed to be progressive (default)
|
|
||||||
@item 0
|
|
||||||
bottom-field-first is assumed
|
|
||||||
@item 1
|
|
||||||
top-field-first is assumed
|
|
||||||
@end table
|
|
||||||
|
|
||||||
@end table
|
|
||||||
|
|
||||||
@c man end VIDEO DECODERS
|
|
||||||
|
|
||||||
@chapter Audio Decoders
|
|
||||||
@c man begin AUDIO DECODERS
|
|
||||||
|
|
||||||
@section ffwavesynth
|
|
||||||
|
|
||||||
Internal wave synthetizer.
|
|
||||||
|
|
||||||
This decoder generates wave patterns according to predefined sequences. Its
|
|
||||||
use is purely internal and the format of the data it accepts is not publicly
|
|
||||||
documented.
|
|
||||||
|
|
||||||
@section libcelt
|
|
||||||
|
|
||||||
libcelt decoder wrapper.
|
|
||||||
|
|
||||||
libcelt allows libavcodec to decode the Xiph CELT ultra-low delay audio codec.
|
|
||||||
Requires the presence of the libcelt headers and library during configuration.
|
|
||||||
You need to explicitly configure the build with @code{--enable-libcelt}.
|
|
||||||
|
|
||||||
@section libgsm
|
|
||||||
|
|
||||||
libgsm decoder wrapper.
|
|
||||||
|
|
||||||
libgsm allows libavcodec to decode the GSM full rate audio codec. Requires
|
|
||||||
the presence of the libgsm headers and library during configuration. You need
|
|
||||||
to explicitly configure the build with @code{--enable-libgsm}.
|
|
||||||
|
|
||||||
This decoder supports both the ordinary GSM and the Microsoft variant.
|
|
||||||
|
|
||||||
@section libilbc
|
|
||||||
|
|
||||||
libilbc decoder wrapper.
|
|
||||||
|
|
||||||
libilbc allows libavcodec to decode the Internet Low Bitrate Codec (iLBC)
|
|
||||||
audio codec. Requires the presence of the libilbc headers and library during
|
|
||||||
configuration. You need to explicitly configure the build with
|
|
||||||
@code{--enable-libilbc}.
|
|
||||||
|
|
||||||
@subsection Options
|
|
||||||
|
|
||||||
The following option is supported by the libilbc wrapper.
|
|
||||||
|
|
||||||
@table @option
|
|
||||||
@item enhance
|
|
||||||
|
|
||||||
Enable the enhancement of the decoded audio when set to 1. The default
|
|
||||||
value is 0 (disabled).
|
|
||||||
|
|
||||||
@end table
|
|
||||||
|
|
||||||
@section libopencore-amrnb
|
|
||||||
|
|
||||||
libopencore-amrnb decoder wrapper.
|
|
||||||
|
|
||||||
libopencore-amrnb allows libavcodec to decode the Adaptive Multi-Rate
|
|
||||||
Narrowband audio codec. Using it requires the presence of the
|
|
||||||
libopencore-amrnb headers and library during configuration. You need to
|
|
||||||
explicitly configure the build with @code{--enable-libopencore-amrnb}.
|
|
||||||
|
|
||||||
An FFmpeg native decoder for AMR-NB exists, so users can decode AMR-NB
|
|
||||||
without this library.
|
|
||||||
|
|
||||||
@section libopencore-amrwb
|
|
||||||
|
|
||||||
libopencore-amrwb decoder wrapper.
|
|
||||||
|
|
||||||
libopencore-amrwb allows libavcodec to decode the Adaptive Multi-Rate
|
|
||||||
Wideband audio codec. Using it requires the presence of the
|
|
||||||
libopencore-amrwb headers and library during configuration. You need to
|
|
||||||
explicitly configure the build with @code{--enable-libopencore-amrwb}.
|
|
||||||
|
|
||||||
An FFmpeg native decoder for AMR-WB exists, so users can decode AMR-WB
|
|
||||||
without this library.
|
|
||||||
|
|
||||||
@section libopus
|
|
||||||
|
|
||||||
libopus decoder wrapper.
|
|
||||||
|
|
||||||
libopus allows libavcodec to decode the Opus Interactive Audio Codec.
|
|
||||||
Requires the presence of the libopus headers and library during
|
|
||||||
configuration. You need to explicitly configure the build with
|
|
||||||
@code{--enable-libopus}.
|
|
||||||
|
|
||||||
@c man end AUDIO DECODERS
|
|
||||||
|
|
||||||
@chapter Subtitles Decoders
|
|
||||||
@c man begin SUBTILES DECODERS
|
|
||||||
|
|
||||||
@section dvdsub
|
|
||||||
|
|
||||||
This codec decodes the bitmap subtitles used in DVDs; the same subtitles can
|
|
||||||
also be found in VobSub file pairs and in some Matroska files.
|
|
||||||
|
|
||||||
@subsection Options
|
|
||||||
|
|
||||||
@table @option
|
|
||||||
@item palette
|
|
||||||
Specify the global palette used by the bitmaps. When stored in VobSub, the
|
|
||||||
palette is normally specified in the index file; in Matroska, the palette is
|
|
||||||
stored in the codec extra-data in the same format as in VobSub. In DVDs, the
|
|
||||||
palette is stored in the IFO file, and therefore not available when reading
|
|
||||||
from dumped VOB files.
|
|
||||||
|
|
||||||
The format for this option is a string containing 16 24-bits hexadecimal
|
|
||||||
numbers (without 0x prefix) separated by comas, for example @code{0d00ee,
|
|
||||||
ee450d, 101010, eaeaea, 0ce60b, ec14ed, ebff0b, 0d617a, 7b7b7b, d1d1d1,
|
|
||||||
7b2a0e, 0d950c, 0f007b, cf0dec, cfa80c, 7c127b}.
|
|
||||||
@end table
|
|
||||||
|
|
||||||
@c man end SUBTILES DECODERS
|
|
||||||
149
doc/default.css
149
doc/default.css
@@ -1,149 +0,0 @@
|
|||||||
a {
|
|
||||||
color: #2D6198;
|
|
||||||
}
|
|
||||||
|
|
||||||
a:visited {
|
|
||||||
color: #884488;
|
|
||||||
}
|
|
||||||
|
|
||||||
#banner {
|
|
||||||
background-color: white;
|
|
||||||
position: relative;
|
|
||||||
text-align: center;
|
|
||||||
}
|
|
||||||
|
|
||||||
#banner img {
|
|
||||||
padding-bottom: 1px;
|
|
||||||
padding-top: 5px;
|
|
||||||
}
|
|
||||||
|
|
||||||
#body {
|
|
||||||
margin-left: 1em;
|
|
||||||
margin-right: 1em;
|
|
||||||
}
|
|
||||||
|
|
||||||
body {
|
|
||||||
background-color: #313131;
|
|
||||||
margin: 0;
|
|
||||||
text-align: justify;
|
|
||||||
}
|
|
||||||
|
|
||||||
.center {
|
|
||||||
margin-left: auto;
|
|
||||||
margin-right: auto;
|
|
||||||
text-align: center;
|
|
||||||
}
|
|
||||||
|
|
||||||
#container {
|
|
||||||
background-color: white;
|
|
||||||
color: #202020;
|
|
||||||
margin-left: 1em;
|
|
||||||
margin-right: 1em;
|
|
||||||
}
|
|
||||||
|
|
||||||
#footer {
|
|
||||||
text-align: center;
|
|
||||||
}
|
|
||||||
|
|
||||||
h1, h2, h3 {
|
|
||||||
padding-left: 0.4em;
|
|
||||||
border-radius: 4px;
|
|
||||||
padding-bottom: 0.2em;
|
|
||||||
padding-top: 0.2em;
|
|
||||||
border: 1px solid #6A996A;
|
|
||||||
}
|
|
||||||
|
|
||||||
h1 {
|
|
||||||
background-color: #7BB37B;
|
|
||||||
color: #151515;
|
|
||||||
font-size: 1.2em;
|
|
||||||
padding-bottom: 0.3em;
|
|
||||||
padding-top: 0.3em;
|
|
||||||
}
|
|
||||||
|
|
||||||
h2 {
|
|
||||||
color: #313131;
|
|
||||||
font-size: 0.9em;
|
|
||||||
background-color: #ABE3AB;
|
|
||||||
}
|
|
||||||
|
|
||||||
h3 {
|
|
||||||
color: #313131;
|
|
||||||
font-size: 0.8em;
|
|
||||||
margin-bottom: -8px;
|
|
||||||
background-color: #BBF3BB;
|
|
||||||
}
|
|
||||||
|
|
||||||
img {
|
|
||||||
border: 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
#navbar {
|
|
||||||
background-color: #738073;
|
|
||||||
border-bottom: 1px solid #5C665C;
|
|
||||||
border-top: 1px solid #5C665C;
|
|
||||||
margin-top: 12px;
|
|
||||||
padding: 0.3em;
|
|
||||||
position: relative;
|
|
||||||
text-align: center;
|
|
||||||
}
|
|
||||||
|
|
||||||
#navbar a, #navbar_secondary a {
|
|
||||||
color: white;
|
|
||||||
padding: 0.3em;
|
|
||||||
text-decoration: none;
|
|
||||||
}
|
|
||||||
|
|
||||||
#navbar a:hover, #navbar_secondary a:hover {
|
|
||||||
background-color: #313131;
|
|
||||||
color: white;
|
|
||||||
text-decoration: none;
|
|
||||||
}
|
|
||||||
|
|
||||||
#navbar_secondary {
|
|
||||||
background-color: #738073;
|
|
||||||
border-bottom: 1px solid #5C665C;
|
|
||||||
border-left: 1px solid #5C665C;
|
|
||||||
border-right: 1px solid #5C665C;
|
|
||||||
padding: 0.3em;
|
|
||||||
position: relative;
|
|
||||||
text-align: center;
|
|
||||||
}
|
|
||||||
|
|
||||||
p {
|
|
||||||
margin-left: 1em;
|
|
||||||
margin-right: 1em;
|
|
||||||
}
|
|
||||||
|
|
||||||
pre {
|
|
||||||
margin-left: 3em;
|
|
||||||
margin-right: 3em;
|
|
||||||
padding: 0.3em;
|
|
||||||
border: 1px solid #bbb;
|
|
||||||
background-color: #f7f7f7;
|
|
||||||
}
|
|
||||||
|
|
||||||
dl dt {
|
|
||||||
font-weight: bold;
|
|
||||||
}
|
|
||||||
|
|
||||||
#proj_desc {
|
|
||||||
font-size: 1.2em;
|
|
||||||
}
|
|
||||||
|
|
||||||
#repos {
|
|
||||||
margin-left: 1em;
|
|
||||||
margin-right: 1em;
|
|
||||||
border-collapse: collapse;
|
|
||||||
border: solid 1px #6A996A;
|
|
||||||
}
|
|
||||||
|
|
||||||
#repos th {
|
|
||||||
background-color: #7BB37B;
|
|
||||||
border: solid 1px #6A996A;
|
|
||||||
}
|
|
||||||
|
|
||||||
#repos td {
|
|
||||||
padding: 0.2em;
|
|
||||||
border: solid 1px #6A996A;
|
|
||||||
}
|
|
||||||
@@ -1,340 +0,0 @@
|
|||||||
@chapter Demuxers
|
|
||||||
@c man begin DEMUXERS
|
|
||||||
|
|
||||||
Demuxers are configured elements in FFmpeg which allow to read the
|
|
||||||
multimedia streams from a particular type of file.
|
|
||||||
|
|
||||||
When you configure your FFmpeg build, all the supported demuxers
|
|
||||||
are enabled by default. You can list all available ones using the
|
|
||||||
configure option @code{--list-demuxers}.
|
|
||||||
|
|
||||||
You can disable all the demuxers using the configure option
|
|
||||||
@code{--disable-demuxers}, and selectively enable a single demuxer with
|
|
||||||
the option @code{--enable-demuxer=@var{DEMUXER}}, or disable it
|
|
||||||
with the option @code{--disable-demuxer=@var{DEMUXER}}.
|
|
||||||
|
|
||||||
The option @code{-formats} of the ff* tools will display the list of
|
|
||||||
enabled demuxers.
|
|
||||||
|
|
||||||
The description of some of the currently available demuxers follows.
|
|
||||||
|
|
||||||
@section applehttp
|
|
||||||
|
|
||||||
Apple HTTP Live Streaming demuxer.
|
|
||||||
|
|
||||||
This demuxer presents all AVStreams from all variant streams.
|
|
||||||
The id field is set to the bitrate variant index number. By setting
|
|
||||||
the discard flags on AVStreams (by pressing 'a' or 'v' in ffplay),
|
|
||||||
the caller can decide which variant streams to actually receive.
|
|
||||||
The total bitrate of the variant that the stream belongs to is
|
|
||||||
available in a metadata key named "variant_bitrate".
|
|
||||||
|
|
||||||
@anchor{concat}
|
|
||||||
@section concat
|
|
||||||
|
|
||||||
Virtual concatenation script demuxer.
|
|
||||||
|
|
||||||
This demuxer reads a list of files and other directives from a text file and
|
|
||||||
demuxes them one after the other, as if all their packet had been muxed
|
|
||||||
together.
|
|
||||||
|
|
||||||
The timestamps in the files are adjusted so that the first file starts at 0
|
|
||||||
and each next file starts where the previous one finishes. Note that it is
|
|
||||||
done globally and may cause gaps if all streams do not have exactly the same
|
|
||||||
length.
|
|
||||||
|
|
||||||
All files must have the same streams (same codecs, same time base, etc.).
|
|
||||||
|
|
||||||
The duration of each file is used to adjust the timestamps of the next file:
|
|
||||||
if the duration is incorrect (because it was computed using the bit-rate or
|
|
||||||
because the file is truncated, for example), it can cause artifacts. The
|
|
||||||
@code{duration} directive can be used to override the duration stored in
|
|
||||||
each file.
|
|
||||||
|
|
||||||
@subsection Syntax
|
|
||||||
|
|
||||||
The script is a text file in extended-ASCII, with one directive per line.
|
|
||||||
Empty lines, leading spaces and lines starting with '#' are ignored. The
|
|
||||||
following directive is recognized:
|
|
||||||
|
|
||||||
@table @option
|
|
||||||
|
|
||||||
@item @code{file @var{path}}
|
|
||||||
Path to a file to read; special characters and spaces must be escaped with
|
|
||||||
backslash or single quotes.
|
|
||||||
|
|
||||||
All subsequent directives apply to that file.
|
|
||||||
|
|
||||||
@item @code{ffconcat version 1.0}
|
|
||||||
Identify the script type and version. It also sets the @option{safe} option
|
|
||||||
to 1 if it was to its default -1.
|
|
||||||
|
|
||||||
To make FFmpeg recognize the format automatically, this directive must
|
|
||||||
appears exactly as is (no extra space or byte-order-mark) on the very first
|
|
||||||
line of the script.
|
|
||||||
|
|
||||||
@item @code{duration @var{dur}}
|
|
||||||
Duration of the file. This information can be specified from the file;
|
|
||||||
specifying it here may be more efficient or help if the information from the
|
|
||||||
file is not available or accurate.
|
|
||||||
|
|
||||||
If the duration is set for all files, then it is possible to seek in the
|
|
||||||
whole concatenated video.
|
|
||||||
|
|
||||||
@end table
|
|
||||||
|
|
||||||
@subsection Options
|
|
||||||
|
|
||||||
This demuxer accepts the following option:
|
|
||||||
|
|
||||||
@table @option
|
|
||||||
|
|
||||||
@item safe
|
|
||||||
If set to 1, reject unsafe file paths. A file path is considered safe if it
|
|
||||||
does not contain a protocol specification and is relative and all components
|
|
||||||
only contain characters from the portable character set (letters, digits,
|
|
||||||
period, underscore and hyphen) and have no period at the beginning of a
|
|
||||||
component.
|
|
||||||
|
|
||||||
If set to 0, any file name is accepted.
|
|
||||||
|
|
||||||
The default is -1, it is equivalent to 1 if the format was automatically
|
|
||||||
probed and 0 otherwise.
|
|
||||||
|
|
||||||
@end table
|
|
||||||
|
|
||||||
@section libgme
|
|
||||||
|
|
||||||
The Game Music Emu library is a collection of video game music file emulators.
|
|
||||||
|
|
||||||
See @url{http://code.google.com/p/game-music-emu/} for more information.
|
|
||||||
|
|
||||||
Some files have multiple tracks. The demuxer will pick the first track by
|
|
||||||
default. The @option{track_index} option can be used to select a different
|
|
||||||
track. Track indexes start at 0. The demuxer exports the number of tracks as
|
|
||||||
@var{tracks} meta data entry.
|
|
||||||
|
|
||||||
For very large files, the @option{max_size} option may have to be adjusted.
|
|
||||||
|
|
||||||
@section libquvi
|
|
||||||
|
|
||||||
Play media from Internet services using the quvi project.
|
|
||||||
|
|
||||||
The demuxer accepts a @option{format} option to request a specific quality. It
|
|
||||||
is by default set to @var{best}.
|
|
||||||
|
|
||||||
See @url{http://quvi.sourceforge.net/} for more information.
|
|
||||||
|
|
||||||
FFmpeg needs to be built with @code{--enable-libquvi} for this demuxer to be
|
|
||||||
enabled.
|
|
||||||
|
|
||||||
@section image2
|
|
||||||
|
|
||||||
Image file demuxer.
|
|
||||||
|
|
||||||
This demuxer reads from a list of image files specified by a pattern.
|
|
||||||
The syntax and meaning of the pattern is specified by the
|
|
||||||
option @var{pattern_type}.
|
|
||||||
|
|
||||||
The pattern may contain a suffix which is used to automatically
|
|
||||||
determine the format of the images contained in the files.
|
|
||||||
|
|
||||||
The size, the pixel format, and the format of each image must be the
|
|
||||||
same for all the files in the sequence.
|
|
||||||
|
|
||||||
This demuxer accepts the following options:
|
|
||||||
@table @option
|
|
||||||
@item framerate
|
|
||||||
Set the frame rate for the video stream. It defaults to 25.
|
|
||||||
@item loop
|
|
||||||
If set to 1, loop over the input. Default value is 0.
|
|
||||||
@item pattern_type
|
|
||||||
Select the pattern type used to interpret the provided filename.
|
|
||||||
|
|
||||||
@var{pattern_type} accepts one of the following values.
|
|
||||||
@table @option
|
|
||||||
@item sequence
|
|
||||||
Select a sequence pattern type, used to specify a sequence of files
|
|
||||||
indexed by sequential numbers.
|
|
||||||
|
|
||||||
A sequence pattern may contain the string "%d" or "%0@var{N}d", which
|
|
||||||
specifies the position of the characters representing a sequential
|
|
||||||
number in each filename matched by the pattern. If the form
|
|
||||||
"%d0@var{N}d" is used, the string representing the number in each
|
|
||||||
filename is 0-padded and @var{N} is the total number of 0-padded
|
|
||||||
digits representing the number. The literal character '%' can be
|
|
||||||
specified in the pattern with the string "%%".
|
|
||||||
|
|
||||||
If the sequence pattern contains "%d" or "%0@var{N}d", the first filename of
|
|
||||||
the file list specified by the pattern must contain a number
|
|
||||||
inclusively contained between @var{start_number} and
|
|
||||||
@var{start_number}+@var{start_number_range}-1, and all the following
|
|
||||||
numbers must be sequential.
|
|
||||||
|
|
||||||
For example the pattern "img-%03d.bmp" will match a sequence of
|
|
||||||
filenames of the form @file{img-001.bmp}, @file{img-002.bmp}, ...,
|
|
||||||
@file{img-010.bmp}, etc.; the pattern "i%%m%%g-%d.jpg" will match a
|
|
||||||
sequence of filenames of the form @file{i%m%g-1.jpg},
|
|
||||||
@file{i%m%g-2.jpg}, ..., @file{i%m%g-10.jpg}, etc.
|
|
||||||
|
|
||||||
Note that the pattern must not necessarily contain "%d" or
|
|
||||||
"%0@var{N}d", for example to convert a single image file
|
|
||||||
@file{img.jpeg} you can employ the command:
|
|
||||||
@example
|
|
||||||
ffmpeg -i img.jpeg img.png
|
|
||||||
@end example
|
|
||||||
|
|
||||||
@item glob
|
|
||||||
Select a glob wildcard pattern type.
|
|
||||||
|
|
||||||
The pattern is interpreted like a @code{glob()} pattern. This is only
|
|
||||||
selectable if libavformat was compiled with globbing support.
|
|
||||||
|
|
||||||
@item glob_sequence @emph{(deprecated, will be removed)}
|
|
||||||
Select a mixed glob wildcard/sequence pattern.
|
|
||||||
|
|
||||||
If your version of libavformat was compiled with globbing support, and
|
|
||||||
the provided pattern contains at least one glob meta character among
|
|
||||||
@code{%*?[]@{@}} that is preceded by an unescaped "%", the pattern is
|
|
||||||
interpreted like a @code{glob()} pattern, otherwise it is interpreted
|
|
||||||
like a sequence pattern.
|
|
||||||
|
|
||||||
All glob special characters @code{%*?[]@{@}} must be prefixed
|
|
||||||
with "%". To escape a literal "%" you shall use "%%".
|
|
||||||
|
|
||||||
For example the pattern @code{foo-%*.jpeg} will match all the
|
|
||||||
filenames prefixed by "foo-" and terminating with ".jpeg", and
|
|
||||||
@code{foo-%?%?%?.jpeg} will match all the filenames prefixed with
|
|
||||||
"foo-", followed by a sequence of three characters, and terminating
|
|
||||||
with ".jpeg".
|
|
||||||
|
|
||||||
This pattern type is deprecated in favor of @var{glob} and
|
|
||||||
@var{sequence}.
|
|
||||||
@end table
|
|
||||||
|
|
||||||
Default value is @var{glob_sequence}.
|
|
||||||
@item pixel_format
|
|
||||||
Set the pixel format of the images to read. If not specified the pixel
|
|
||||||
format is guessed from the first image file in the sequence.
|
|
||||||
@item start_number
|
|
||||||
Set the index of the file matched by the image file pattern to start
|
|
||||||
to read from. Default value is 0.
|
|
||||||
@item start_number_range
|
|
||||||
Set the index interval range to check when looking for the first image
|
|
||||||
file in the sequence, starting from @var{start_number}. Default value
|
|
||||||
is 5.
|
|
||||||
@item ts_from_file
|
|
||||||
If set to 1, will set frame timestamp to modification time of image file. Note
|
|
||||||
that monotonity of timestamps is not provided: images go in the same order as
|
|
||||||
without this option. Default value is 0.
|
|
||||||
@item video_size
|
|
||||||
Set the video size of the images to read. If not specified the video
|
|
||||||
size is guessed from the first image file in the sequence.
|
|
||||||
@end table
|
|
||||||
|
|
||||||
@subsection Examples
|
|
||||||
|
|
||||||
@itemize
|
|
||||||
@item
|
|
||||||
Use @command{ffmpeg} for creating a video from the images in the file
|
|
||||||
sequence @file{img-001.jpeg}, @file{img-002.jpeg}, ..., assuming an
|
|
||||||
input frame rate of 10 frames per second:
|
|
||||||
@example
|
|
||||||
ffmpeg -i 'img-%03d.jpeg' -r 10 out.mkv
|
|
||||||
@end example
|
|
||||||
|
|
||||||
@item
|
|
||||||
As above, but start by reading from a file with index 100 in the sequence:
|
|
||||||
@example
|
|
||||||
ffmpeg -start_number 100 -i 'img-%03d.jpeg' -r 10 out.mkv
|
|
||||||
@end example
|
|
||||||
|
|
||||||
@item
|
|
||||||
Read images matching the "*.png" glob pattern , that is all the files
|
|
||||||
terminating with the ".png" suffix:
|
|
||||||
@example
|
|
||||||
ffmpeg -pattern_type glob -i "*.png" -r 10 out.mkv
|
|
||||||
@end example
|
|
||||||
@end itemize
|
|
||||||
|
|
||||||
@section rawvideo
|
|
||||||
|
|
||||||
Raw video demuxer.
|
|
||||||
|
|
||||||
This demuxer allows to read raw video data. Since there is no header
|
|
||||||
specifying the assumed video parameters, the user must specify them
|
|
||||||
in order to be able to decode the data correctly.
|
|
||||||
|
|
||||||
This demuxer accepts the following options:
|
|
||||||
@table @option
|
|
||||||
|
|
||||||
@item framerate
|
|
||||||
Set input video frame rate. Default value is 25.
|
|
||||||
|
|
||||||
@item pixel_format
|
|
||||||
Set the input video pixel format. Default value is @code{yuv420p}.
|
|
||||||
|
|
||||||
@item video_size
|
|
||||||
Set the input video size. This value must be specified explicitly.
|
|
||||||
@end table
|
|
||||||
|
|
||||||
For example to read a rawvideo file @file{input.raw} with
|
|
||||||
@command{ffplay}, assuming a pixel format of @code{rgb24}, a video
|
|
||||||
size of @code{320x240}, and a frame rate of 10 images per second, use
|
|
||||||
the command:
|
|
||||||
@example
|
|
||||||
ffplay -f rawvideo -pixel_format rgb24 -video_size 320x240 -framerate 10 input.raw
|
|
||||||
@end example
|
|
||||||
|
|
||||||
@section sbg
|
|
||||||
|
|
||||||
SBaGen script demuxer.
|
|
||||||
|
|
||||||
This demuxer reads the script language used by SBaGen
|
|
||||||
@url{http://uazu.net/sbagen/} to generate binaural beats sessions. A SBG
|
|
||||||
script looks like that:
|
|
||||||
@example
|
|
||||||
-SE
|
|
||||||
a: 300-2.5/3 440+4.5/0
|
|
||||||
b: 300-2.5/0 440+4.5/3
|
|
||||||
off: -
|
|
||||||
NOW == a
|
|
||||||
+0:07:00 == b
|
|
||||||
+0:14:00 == a
|
|
||||||
+0:21:00 == b
|
|
||||||
+0:30:00 off
|
|
||||||
@end example
|
|
||||||
|
|
||||||
A SBG script can mix absolute and relative timestamps. If the script uses
|
|
||||||
either only absolute timestamps (including the script start time) or only
|
|
||||||
relative ones, then its layout is fixed, and the conversion is
|
|
||||||
straightforward. On the other hand, if the script mixes both kind of
|
|
||||||
timestamps, then the @var{NOW} reference for relative timestamps will be
|
|
||||||
taken from the current time of day at the time the script is read, and the
|
|
||||||
script layout will be frozen according to that reference. That means that if
|
|
||||||
the script is directly played, the actual times will match the absolute
|
|
||||||
timestamps up to the sound controller's clock accuracy, but if the user
|
|
||||||
somehow pauses the playback or seeks, all times will be shifted accordingly.
|
|
||||||
|
|
||||||
@section tedcaptions
|
|
||||||
|
|
||||||
JSON captions used for @url{http://www.ted.com/, TED Talks}.
|
|
||||||
|
|
||||||
TED does not provide links to the captions, but they can be guessed from the
|
|
||||||
page. The file @file{tools/bookmarklets.html} from the FFmpeg source tree
|
|
||||||
contains a bookmarklet to expose them.
|
|
||||||
|
|
||||||
This demuxer accepts the following option:
|
|
||||||
@table @option
|
|
||||||
@item start_time
|
|
||||||
Set the start time of the TED talk, in milliseconds. The default is 15000
|
|
||||||
(15s). It is used to sync the captions with the downloadable videos, because
|
|
||||||
they include a 15s intro.
|
|
||||||
@end table
|
|
||||||
|
|
||||||
Example: convert the captions to a format most players understand:
|
|
||||||
@example
|
|
||||||
ffmpeg -i http://www.ted.com/talks/subtitles/id/1/lang/en talk1-en.srt
|
|
||||||
@end example
|
|
||||||
|
|
||||||
@c man end DEMUXERS
|
|
||||||
@@ -2,25 +2,23 @@
|
|||||||
|
|
||||||
@settitle Developer Documentation
|
@settitle Developer Documentation
|
||||||
@titlepage
|
@titlepage
|
||||||
|
@sp 7
|
||||||
@center @titlefont{Developer Documentation}
|
@center @titlefont{Developer Documentation}
|
||||||
|
@sp 3
|
||||||
@end titlepage
|
@end titlepage
|
||||||
|
|
||||||
@top
|
|
||||||
|
|
||||||
@contents
|
|
||||||
|
|
||||||
@chapter Developers Guide
|
@chapter Developers Guide
|
||||||
|
|
||||||
@section API
|
@section API
|
||||||
@itemize @bullet
|
@itemize @bullet
|
||||||
@item libavcodec is the library containing the codecs (both encoding and
|
@item libavcodec is the library containing the codecs (both encoding and
|
||||||
decoding). Look at @file{doc/examples/decoding_encoding.c} to see how to use
|
decoding). Look at @file{libavcodec/apiexample.c} to see how to use it.
|
||||||
it.
|
|
||||||
|
|
||||||
@item libavformat is the library containing the file format handling (mux and
|
@item libavformat is the library containing the file format handling (mux and
|
||||||
demux code for several formats). Look at @file{ffplay.c} to use it in a
|
demux code for several formats). Look at @file{ffplay.c} to use it in a
|
||||||
player. See @file{doc/examples/muxing.c} to use it to generate audio or video
|
player. See @file{libavformat/output-example.c} to use it to generate
|
||||||
streams.
|
audio or video streams.
|
||||||
|
|
||||||
@end itemize
|
@end itemize
|
||||||
|
|
||||||
@@ -35,57 +33,59 @@ You can use libavcodec or libavformat in your commercial program, but
|
|||||||
@emph{any patch you make must be published}. The best way to proceed is
|
@emph{any patch you make must be published}. The best way to proceed is
|
||||||
to send your patches to the FFmpeg mailing list.
|
to send your patches to the FFmpeg mailing list.
|
||||||
|
|
||||||
@section Contributing
|
|
||||||
|
|
||||||
There are 3 ways by which code gets into ffmpeg.
|
|
||||||
@itemize @bullet
|
|
||||||
@item Submitting Patches to the main developer mailing list
|
|
||||||
see @ref{Submitting patches} for details.
|
|
||||||
@item Directly committing changes to the main tree.
|
|
||||||
@item Committing changes to a git clone, for example on github.com or
|
|
||||||
gitorious.org. And asking us to merge these changes.
|
|
||||||
@end itemize
|
|
||||||
|
|
||||||
Whichever way, changes should be reviewed by the maintainer of the code
|
|
||||||
before they are committed. And they should follow the @ref{Coding Rules}.
|
|
||||||
The developer making the commit and the author are responsible for their changes
|
|
||||||
and should try to fix issues their commit causes.
|
|
||||||
|
|
||||||
@anchor{Coding Rules}
|
@anchor{Coding Rules}
|
||||||
@section Coding Rules
|
@section Coding Rules
|
||||||
|
|
||||||
@subsection Code formatting conventions
|
FFmpeg is programmed in the ISO C90 language with a few additional
|
||||||
|
features from ISO C99, namely:
|
||||||
There are the following guidelines regarding the indentation in files:
|
|
||||||
@itemize @bullet
|
@itemize @bullet
|
||||||
@item
|
@item
|
||||||
Indent size is 4.
|
the @samp{inline} keyword;
|
||||||
@item
|
@item
|
||||||
|
@samp{//} comments;
|
||||||
|
@item
|
||||||
|
designated struct initializers (@samp{struct s x = @{ .i = 17 @};})
|
||||||
|
@item
|
||||||
|
compound literals (@samp{x = (struct s) @{ 17, 23 @};})
|
||||||
|
@end itemize
|
||||||
|
|
||||||
|
These features are supported by all compilers we care about, so we will not
|
||||||
|
accept patches to remove their use unless they absolutely do not impair
|
||||||
|
clarity and performance.
|
||||||
|
|
||||||
|
All code must compile with GCC 2.95 and GCC 3.3. Currently, FFmpeg also
|
||||||
|
compiles with several other compilers, such as the Compaq ccc compiler
|
||||||
|
or Sun Studio 9, and we would like to keep it that way unless it would
|
||||||
|
be exceedingly involved. To ensure compatibility, please do not use any
|
||||||
|
additional C99 features or GCC extensions. Especially watch out for:
|
||||||
|
@itemize @bullet
|
||||||
|
@item
|
||||||
|
mixing statements and declarations;
|
||||||
|
@item
|
||||||
|
@samp{long long} (use @samp{int64_t} instead);
|
||||||
|
@item
|
||||||
|
@samp{__attribute__} not protected by @samp{#ifdef __GNUC__} or similar;
|
||||||
|
@item
|
||||||
|
GCC statement expressions (@samp{(x = (@{ int y = 4; y; @})}).
|
||||||
|
@end itemize
|
||||||
|
|
||||||
|
Indent size is 4.
|
||||||
|
The presentation is one inspired by 'indent -i4 -kr -nut'.
|
||||||
The TAB character is forbidden outside of Makefiles as is any
|
The TAB character is forbidden outside of Makefiles as is any
|
||||||
form of trailing whitespace. Commits containing either will be
|
form of trailing whitespace. Commits containing either will be
|
||||||
rejected by the git repository.
|
rejected by the Subversion repository.
|
||||||
@item
|
|
||||||
You should try to limit your code lines to 80 characters; however, do so if
|
|
||||||
and only if this improves readability.
|
|
||||||
@end itemize
|
|
||||||
The presentation is one inspired by 'indent -i4 -kr -nut'.
|
|
||||||
|
|
||||||
The main priority in FFmpeg is simplicity and small code size in order to
|
The main priority in FFmpeg is simplicity and small code size in order to
|
||||||
minimize the bug count.
|
minimize the bug count.
|
||||||
|
|
||||||
@subsection Comments
|
Comments: Use the JavaDoc/Doxygen
|
||||||
Use the JavaDoc/Doxygen format (see examples below) so that code documentation
|
format (see examples below) so that code documentation
|
||||||
can be generated automatically. All nontrivial functions should have a comment
|
can be generated automatically. All nontrivial functions should have a comment
|
||||||
above them explaining what the function does, even if it is just one sentence.
|
above them explaining what the function does, even if it is just one sentence.
|
||||||
All structures and their member variables should be documented, too.
|
All structures and their member variables should be documented, too.
|
||||||
|
|
||||||
Avoid Qt-style and similar Doxygen syntax with @code{!} in it, i.e. replace
|
|
||||||
@code{//!} with @code{///} and similar. Also @@ syntax should be employed
|
|
||||||
for markup commands, i.e. use @code{@@param} and not @code{\param}.
|
|
||||||
|
|
||||||
@example
|
@example
|
||||||
/**
|
/**
|
||||||
* @@file
|
* @@file mpeg.c
|
||||||
* MPEG codec.
|
* MPEG codec.
|
||||||
* @@author ...
|
* @@author ...
|
||||||
*/
|
*/
|
||||||
@@ -113,132 +113,18 @@ int myfunc(int my_parameter)
|
|||||||
...
|
...
|
||||||
@end example
|
@end example
|
||||||
|
|
||||||
@subsection C language features
|
|
||||||
|
|
||||||
FFmpeg is programmed in the ISO C90 language with a few additional
|
|
||||||
features from ISO C99, namely:
|
|
||||||
@itemize @bullet
|
|
||||||
@item
|
|
||||||
the @samp{inline} keyword;
|
|
||||||
@item
|
|
||||||
@samp{//} comments;
|
|
||||||
@item
|
|
||||||
designated struct initializers (@samp{struct s x = @{ .i = 17 @};})
|
|
||||||
@item
|
|
||||||
compound literals (@samp{x = (struct s) @{ 17, 23 @};})
|
|
||||||
@end itemize
|
|
||||||
|
|
||||||
These features are supported by all compilers we care about, so we will not
|
|
||||||
accept patches to remove their use unless they absolutely do not impair
|
|
||||||
clarity and performance.
|
|
||||||
|
|
||||||
All code must compile with recent versions of GCC and a number of other
|
|
||||||
currently supported compilers. To ensure compatibility, please do not use
|
|
||||||
additional C99 features or GCC extensions. Especially watch out for:
|
|
||||||
@itemize @bullet
|
|
||||||
@item
|
|
||||||
mixing statements and declarations;
|
|
||||||
@item
|
|
||||||
@samp{long long} (use @samp{int64_t} instead);
|
|
||||||
@item
|
|
||||||
@samp{__attribute__} not protected by @samp{#ifdef __GNUC__} or similar;
|
|
||||||
@item
|
|
||||||
GCC statement expressions (@samp{(x = (@{ int y = 4; y; @})}).
|
|
||||||
@end itemize
|
|
||||||
|
|
||||||
@subsection Naming conventions
|
|
||||||
All names should be composed with underscores (_), not CamelCase. For example,
|
|
||||||
@samp{avfilter_get_video_buffer} is an acceptable function name and
|
|
||||||
@samp{AVFilterGetVideo} is not. The exception from this are type names, like
|
|
||||||
for example structs and enums; they should always be in the CamelCase
|
|
||||||
|
|
||||||
There are the following conventions for naming variables and functions:
|
|
||||||
@itemize @bullet
|
|
||||||
@item
|
|
||||||
For local variables no prefix is required.
|
|
||||||
@item
|
|
||||||
For file-scope variables and functions declared as @code{static}, no prefix
|
|
||||||
is required.
|
|
||||||
@item
|
|
||||||
For variables and functions visible outside of file scope, but only used
|
|
||||||
internally by a library, an @code{ff_} prefix should be used,
|
|
||||||
e.g. @samp{ff_w64_demuxer}.
|
|
||||||
@item
|
|
||||||
For variables and functions visible outside of file scope, used internally
|
|
||||||
across multiple libraries, use @code{avpriv_} as prefix, for example,
|
|
||||||
@samp{avpriv_aac_parse_header}.
|
|
||||||
@item
|
|
||||||
Each library has its own prefix for public symbols, in addition to the
|
|
||||||
commonly used @code{av_} (@code{avformat_} for libavformat,
|
|
||||||
@code{avcodec_} for libavcodec, @code{swr_} for libswresample, etc).
|
|
||||||
Check the existing code and choose names accordingly.
|
|
||||||
Note that some symbols without these prefixes are also exported for
|
|
||||||
retro-compatibility reasons. These exceptions are declared in the
|
|
||||||
@code{lib<name>/lib<name>.v} files.
|
|
||||||
@end itemize
|
|
||||||
|
|
||||||
Furthermore, name space reserved for the system should not be invaded.
|
|
||||||
Identifiers ending in @code{_t} are reserved by
|
|
||||||
@url{http://pubs.opengroup.org/onlinepubs/007904975/functions/xsh_chap02_02.html#tag_02_02_02, POSIX}.
|
|
||||||
Also avoid names starting with @code{__} or @code{_} followed by an uppercase
|
|
||||||
letter as they are reserved by the C standard. Names starting with @code{_}
|
|
||||||
are reserved at the file level and may not be used for externally visible
|
|
||||||
symbols. If in doubt, just avoid names starting with @code{_} altogether.
|
|
||||||
|
|
||||||
@subsection Miscellaneous conventions
|
|
||||||
@itemize @bullet
|
|
||||||
@item
|
|
||||||
fprintf and printf are forbidden in libavformat and libavcodec,
|
fprintf and printf are forbidden in libavformat and libavcodec,
|
||||||
please use av_log() instead.
|
please use av_log() instead.
|
||||||
@item
|
|
||||||
Casts should be used only when necessary. Unneeded parentheses
|
Casts should be used only when necessary. Unneeded parentheses
|
||||||
should also be avoided if they don't make the code easier to understand.
|
should also be avoided if they don't make the code easier to understand.
|
||||||
@end itemize
|
|
||||||
|
|
||||||
@subsection Editor configuration
|
|
||||||
In order to configure Vim to follow FFmpeg formatting conventions, paste
|
|
||||||
the following snippet into your @file{.vimrc}:
|
|
||||||
@example
|
|
||||||
" indentation rules for FFmpeg: 4 spaces, no tabs
|
|
||||||
set expandtab
|
|
||||||
set shiftwidth=4
|
|
||||||
set softtabstop=4
|
|
||||||
set cindent
|
|
||||||
set cinoptions=(0
|
|
||||||
" Allow tabs in Makefiles.
|
|
||||||
autocmd FileType make,automake set noexpandtab shiftwidth=8 softtabstop=8
|
|
||||||
" Trailing whitespace and tabs are forbidden, so highlight them.
|
|
||||||
highlight ForbiddenWhitespace ctermbg=red guibg=red
|
|
||||||
match ForbiddenWhitespace /\s\+$\|\t/
|
|
||||||
" Do not highlight spaces at the end of line while typing on that line.
|
|
||||||
autocmd InsertEnter * match ForbiddenWhitespace /\t\|\s\+\%#\@@<!$/
|
|
||||||
@end example
|
|
||||||
|
|
||||||
For Emacs, add these roughly equivalent lines to your @file{.emacs.d/init.el}:
|
|
||||||
@example
|
|
||||||
(c-add-style "ffmpeg"
|
|
||||||
'("k&r"
|
|
||||||
(c-basic-offset . 4)
|
|
||||||
(indent-tabs-mode . nil)
|
|
||||||
(show-trailing-whitespace . t)
|
|
||||||
(c-offsets-alist
|
|
||||||
(statement-cont . (c-lineup-assignments +)))
|
|
||||||
)
|
|
||||||
)
|
|
||||||
(setq c-default-style "ffmpeg")
|
|
||||||
@end example
|
|
||||||
|
|
||||||
@section Development Policy
|
@section Development Policy
|
||||||
|
|
||||||
@enumerate
|
@enumerate
|
||||||
@item
|
@item
|
||||||
Contributions should be licensed under the
|
Contributions should be licensed under the LGPL 2.1, including an
|
||||||
@uref{http://www.gnu.org/licenses/lgpl-2.1.html, LGPL 2.1},
|
"or any later version" clause, or the MIT license. GPL 2 including
|
||||||
including an "or any later version" clause, or, if you prefer
|
|
||||||
a gift-style license, the
|
|
||||||
@uref{http://www.isc.org/software/license/, ISC} or
|
|
||||||
@uref{http://mit-license.org/, MIT} license.
|
|
||||||
@uref{http://www.gnu.org/licenses/gpl-2.0.html, GPL 2} including
|
|
||||||
an "or any later version" clause is also acceptable, but LGPL is
|
an "or any later version" clause is also acceptable, but LGPL is
|
||||||
preferred.
|
preferred.
|
||||||
@item
|
@item
|
||||||
@@ -248,13 +134,6 @@ For Emacs, add these roughly equivalent lines to your @file{.emacs.d/init.el}:
|
|||||||
You can commit unfinished stuff (for testing etc), but it must be disabled
|
You can commit unfinished stuff (for testing etc), but it must be disabled
|
||||||
(#ifdef etc) by default so it does not interfere with other developers'
|
(#ifdef etc) by default so it does not interfere with other developers'
|
||||||
work.
|
work.
|
||||||
@item
|
|
||||||
The commit message should have a short first line in the form of
|
|
||||||
a @samp{topic: short description} as a header, separated by a newline
|
|
||||||
from the body consisting of an explanation of why the change is necessary.
|
|
||||||
If the commit fixes a known bug on the bug tracker, the commit message
|
|
||||||
should include its bug ID. Referring to the issue on the bug tracker does
|
|
||||||
not exempt you from writing an excerpt of the bug in the commit message.
|
|
||||||
@item
|
@item
|
||||||
You do not have to over-test things. If it works for you, and you think it
|
You do not have to over-test things. If it works for you, and you think it
|
||||||
should work for others, then commit. If your code has problems
|
should work for others, then commit. If your code has problems
|
||||||
@@ -270,9 +149,9 @@ For Emacs, add these roughly equivalent lines to your @file{.emacs.d/init.el}:
|
|||||||
Also if you have doubts about splitting or not splitting, do not hesitate to
|
Also if you have doubts about splitting or not splitting, do not hesitate to
|
||||||
ask/discuss it on the developer mailing list.
|
ask/discuss it on the developer mailing list.
|
||||||
@item
|
@item
|
||||||
Do not change behavior of the programs (renaming options etc) or public
|
Do not change behavior of the program (renaming options etc) without
|
||||||
API or ABI without first discussing it on the ffmpeg-devel mailing list.
|
first discussing it on the ffmpeg-devel mailing list. Do not remove
|
||||||
Do not remove functionality from the code. Just improve!
|
functionality from the code. Just improve!
|
||||||
|
|
||||||
Note: Redundant code can be removed.
|
Note: Redundant code can be removed.
|
||||||
@item
|
@item
|
||||||
@@ -300,13 +179,10 @@ For Emacs, add these roughly equivalent lines to your @file{.emacs.d/init.el}:
|
|||||||
Always fill out the commit log message. Describe in a few lines what you
|
Always fill out the commit log message. Describe in a few lines what you
|
||||||
changed and why. You can refer to mailing list postings if you fix a
|
changed and why. You can refer to mailing list postings if you fix a
|
||||||
particular bug. Comments such as "fixed!" or "Changed it." are unacceptable.
|
particular bug. Comments such as "fixed!" or "Changed it." are unacceptable.
|
||||||
Recommended format:
|
|
||||||
area changed: Short 1 line description
|
|
||||||
|
|
||||||
details describing what and why and giving references.
|
|
||||||
@item
|
@item
|
||||||
Make sure the author of the commit is set correctly. (see git commit --author)
|
If you apply a patch by someone else, include the name and email address in
|
||||||
If you apply a patch, send an
|
the log message. Since the ffmpeg-cvslog mailing list is publicly
|
||||||
|
archived you should add some SPAM protection to the email address. Send an
|
||||||
answer to ffmpeg-devel (or wherever you got the patch from) saying that
|
answer to ffmpeg-devel (or wherever you got the patch from) saying that
|
||||||
you applied the patch.
|
you applied the patch.
|
||||||
@item
|
@item
|
||||||
@@ -335,7 +211,7 @@ For Emacs, add these roughly equivalent lines to your @file{.emacs.d/init.el}:
|
|||||||
always check values read from some untrusted source before using them
|
always check values read from some untrusted source before using them
|
||||||
as array index or other risky things.
|
as array index or other risky things.
|
||||||
@item
|
@item
|
||||||
Remember to check if you need to bump versions for the specific libav*
|
Remember to check if you need to bump versions for the specific libav
|
||||||
parts (libavutil, libavcodec, libavformat) you are changing. You need
|
parts (libavutil, libavcodec, libavformat) you are changing. You need
|
||||||
to change the version integer.
|
to change the version integer.
|
||||||
Incrementing the first component means no backward compatibility to
|
Incrementing the first component means no backward compatibility to
|
||||||
@@ -344,8 +220,7 @@ For Emacs, add these roughly equivalent lines to your @file{.emacs.d/init.el}:
|
|||||||
(e.g. addition of a function to the public API or extension of an
|
(e.g. addition of a function to the public API or extension of an
|
||||||
existing data structure).
|
existing data structure).
|
||||||
Incrementing the third component means a noteworthy binary compatible
|
Incrementing the third component means a noteworthy binary compatible
|
||||||
change (e.g. encoder bug fix that matters for the decoder). The third
|
change (e.g. encoder bug fix that matters for the decoder).
|
||||||
component always starts at 100 to distinguish FFmpeg from Libav.
|
|
||||||
@item
|
@item
|
||||||
Compiler warnings indicate potential bugs or code with bad style. If a type of
|
Compiler warnings indicate potential bugs or code with bad style. If a type of
|
||||||
warning always points to correct and clean code, that warning should
|
warning always points to correct and clean code, that warning should
|
||||||
@@ -361,14 +236,14 @@ For Emacs, add these roughly equivalent lines to your @file{.emacs.d/init.el}:
|
|||||||
|
|
||||||
We think our rules are not too hard. If you have comments, contact us.
|
We think our rules are not too hard. If you have comments, contact us.
|
||||||
|
|
||||||
@anchor{Submitting patches}
|
Note, these rules are mostly borrowed from the MPlayer project.
|
||||||
|
|
||||||
@section Submitting patches
|
@section Submitting patches
|
||||||
|
|
||||||
First, read the @ref{Coding Rules} above if you did not yet, in particular
|
First, (@pxref{Coding Rules}) above if you did not yet.
|
||||||
the rules regarding patch submission.
|
|
||||||
|
|
||||||
When you submit your patch, please use @code{git format-patch} or
|
When you submit your patch, try to send a unified diff (diff '-up'
|
||||||
@code{git send-email}. We cannot read other diffs :-)
|
option). We cannot read other diffs :-)
|
||||||
|
|
||||||
Also please do not submit a patch which contains several unrelated changes.
|
Also please do not submit a patch which contains several unrelated changes.
|
||||||
Split it into separate, self-contained pieces. This does not mean splitting
|
Split it into separate, self-contained pieces. This does not mean splitting
|
||||||
@@ -380,8 +255,13 @@ for us and greatly increases your chances of getting your patch applied.
|
|||||||
Use the patcheck tool of FFmpeg to check your patch.
|
Use the patcheck tool of FFmpeg to check your patch.
|
||||||
The tool is located in the tools directory.
|
The tool is located in the tools directory.
|
||||||
|
|
||||||
Run the @ref{Regression tests} before submitting a patch in order to verify
|
Run the regression tests before submitting a patch so that you can
|
||||||
it does not cause unexpected problems.
|
verify that there are no big problems.
|
||||||
|
|
||||||
|
Patches should be posted as base64 encoded attachments (or any other
|
||||||
|
encoding which ensures that the patch will not be trashed during
|
||||||
|
transmission) to the ffmpeg-devel mailing list, see
|
||||||
|
@url{http://lists.mplayerhq.hu/mailman/listinfo/ffmpeg-devel}
|
||||||
|
|
||||||
It also helps quite a bit if you tell us what the patch does (for example
|
It also helps quite a bit if you tell us what the patch does (for example
|
||||||
'replaces lrint by lrintf'), and why (for example '*BSD isn't C99 compliant
|
'replaces lrint by lrintf'), and why (for example '*BSD isn't C99 compliant
|
||||||
@@ -390,13 +270,6 @@ and has no lrint()')
|
|||||||
Also please if you send several patches, send each patch as a separate mail,
|
Also please if you send several patches, send each patch as a separate mail,
|
||||||
do not attach several unrelated patches to the same mail.
|
do not attach several unrelated patches to the same mail.
|
||||||
|
|
||||||
Patches should be posted to the
|
|
||||||
@uref{http://lists.ffmpeg.org/mailman/listinfo/ffmpeg-devel, ffmpeg-devel}
|
|
||||||
mailing list. Use @code{git send-email} when possible since it will properly
|
|
||||||
send patches without requiring extra care. If you cannot, then send patches
|
|
||||||
as base64-encoded attachments, so your patch is not trashed during
|
|
||||||
transmission.
|
|
||||||
|
|
||||||
Your patch will be reviewed on the mailing list. You will likely be asked
|
Your patch will be reviewed on the mailing list. You will likely be asked
|
||||||
to make some changes and are expected to send in an improved version that
|
to make some changes and are expected to send in an improved version that
|
||||||
incorporates the requests from the review. This process may go through
|
incorporates the requests from the review. This process may go through
|
||||||
@@ -416,16 +289,14 @@ send a reminder by email. Your patch should eventually be dealt with.
|
|||||||
Did you add a long_name under NULL_IF_CONFIG_SMALL to the AVCodec or
|
Did you add a long_name under NULL_IF_CONFIG_SMALL to the AVCodec or
|
||||||
AVInputFormat/AVOutputFormat struct?
|
AVInputFormat/AVOutputFormat struct?
|
||||||
@item
|
@item
|
||||||
Did you bump the minor version number (and reset the micro version
|
Did you bump the minor version number in @file{avcodec.h} or
|
||||||
number) in @file{libavcodec/version.h} or @file{libavformat/version.h}?
|
@file{avformat.h}?
|
||||||
@item
|
@item
|
||||||
Did you register it in @file{allcodecs.c} or @file{allformats.c}?
|
Did you register it in @file{allcodecs.c} or @file{allformats.c}?
|
||||||
@item
|
@item
|
||||||
Did you add the AVCodecID to @file{avcodec.h}?
|
Did you add the CodecID to @file{avcodec.h}?
|
||||||
When adding new codec IDs, also add an entry to the codec descriptor
|
|
||||||
list in @file{libavcodec/codec_desc.c}.
|
|
||||||
@item
|
@item
|
||||||
If it has a FourCC, did you add it to @file{libavformat/riff.c},
|
If it has a fourcc, did you add it to @file{libavformat/riff.c},
|
||||||
even if it is only a decoder?
|
even if it is only a decoder?
|
||||||
@item
|
@item
|
||||||
Did you add a rule to compile the appropriate files in the Makefile?
|
Did you add a rule to compile the appropriate files in the Makefile?
|
||||||
@@ -440,31 +311,22 @@ send a reminder by email. Your patch should eventually be dealt with.
|
|||||||
If it depends on a parser or a library, did you add that dependency in
|
If it depends on a parser or a library, did you add that dependency in
|
||||||
configure?
|
configure?
|
||||||
@item
|
@item
|
||||||
Did you @code{git add} the appropriate files before committing?
|
Did you "svn add" the appropriate files before commiting?
|
||||||
@item
|
|
||||||
Did you make sure it compiles standalone, i.e. with
|
|
||||||
@code{configure --disable-everything --enable-decoder=foo}
|
|
||||||
(or @code{--enable-demuxer} or whatever your component is)?
|
|
||||||
@end enumerate
|
@end enumerate
|
||||||
|
|
||||||
|
|
||||||
@section patch submission checklist
|
@section patch submission checklist
|
||||||
|
|
||||||
@enumerate
|
@enumerate
|
||||||
@item
|
@item
|
||||||
Does @code{make fate} pass with the patch applied?
|
Do the regression tests pass with the patch applied?
|
||||||
@item
|
@item
|
||||||
Was the patch generated with git format-patch or send-email?
|
Does @code{make checkheaders} pass with the patch applied?
|
||||||
@item
|
@item
|
||||||
Did you sign off your patch? (git commit -s)
|
Is the patch a unified diff?
|
||||||
See @url{http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=blob_plain;f=Documentation/SubmittingPatches} for the meaning
|
|
||||||
of sign off.
|
|
||||||
@item
|
@item
|
||||||
Did you provide a clear git commit log message?
|
Is the patch against latest FFmpeg SVN?
|
||||||
@item
|
@item
|
||||||
Is the patch against latest FFmpeg git master branch?
|
Are you subscribed to ffmpeg-dev?
|
||||||
@item
|
|
||||||
Are you subscribed to ffmpeg-devel?
|
|
||||||
(the list is subscribers only due to spam)
|
(the list is subscribers only due to spam)
|
||||||
@item
|
@item
|
||||||
Have you checked that the changes are minimal, so that the same cannot be
|
Have you checked that the changes are minimal, so that the same cannot be
|
||||||
@@ -478,10 +340,11 @@ send a reminder by email. Your patch should eventually be dealt with.
|
|||||||
other security issues?
|
other security issues?
|
||||||
@item
|
@item
|
||||||
Did you test your decoder or demuxer against damaged data? If no, see
|
Did you test your decoder or demuxer against damaged data? If no, see
|
||||||
tools/trasher, the noise bitstream filter, and
|
tools/trasher and the noise bitstream filter. Your decoder or demuxer
|
||||||
@uref{http://caca.zoy.org/wiki/zzuf, zzuf}. Your decoder or demuxer
|
should not crash or end in a (near) infinite loop when fed damaged data.
|
||||||
should not crash, end in a (near) infinite loop, or allocate ridiculous
|
@item
|
||||||
amounts of memory when fed damaged data.
|
Is the patch created from the root of the source tree, so it can be
|
||||||
|
applied with @code{patch -p0}?
|
||||||
@item
|
@item
|
||||||
Does the patch not mix functional and cosmetic changes?
|
Does the patch not mix functional and cosmetic changes?
|
||||||
@item
|
@item
|
||||||
@@ -518,22 +381,13 @@ send a reminder by email. Your patch should eventually be dealt with.
|
|||||||
Lines with similar content should be aligned vertically when doing so
|
Lines with similar content should be aligned vertically when doing so
|
||||||
improves readability.
|
improves readability.
|
||||||
@item
|
@item
|
||||||
Consider to add a regression test for your code.
|
Did you provide a suggestion for a clear commit log message?
|
||||||
@item
|
|
||||||
If you added YASM code please check that things still work with --disable-yasm
|
|
||||||
@item
|
|
||||||
Make sure you check the return values of function and return appropriate
|
|
||||||
error codes. Especially memory allocation functions like @code{av_malloc()}
|
|
||||||
are notoriously left unchecked, which is a serious problem.
|
|
||||||
@item
|
|
||||||
Test your code with valgrind and or Address Sanitizer to ensure it's free
|
|
||||||
of leaks, out of array accesses, etc.
|
|
||||||
@end enumerate
|
@end enumerate
|
||||||
|
|
||||||
@section Patch review process
|
@section Patch review process
|
||||||
|
|
||||||
All patches posted to ffmpeg-devel will be reviewed, unless they contain a
|
All patches posted to ffmpeg-devel will be reviewed, unless they contain a
|
||||||
clear note that the patch is not for the git master branch.
|
clear note that the patch is not for SVN.
|
||||||
Reviews and comments will be posted as replies to the patch on the
|
Reviews and comments will be posted as replies to the patch on the
|
||||||
mailing list. The patch submitter then has to take care of every comment,
|
mailing list. The patch submitter then has to take care of every comment,
|
||||||
that can be by resubmitting a changed patch or by discussion. Resubmitted
|
that can be by resubmitting a changed patch or by discussion. Resubmitted
|
||||||
@@ -546,163 +400,37 @@ After a patch is approved it will be committed to the repository.
|
|||||||
We will review all submitted patches, but sometimes we are quite busy so
|
We will review all submitted patches, but sometimes we are quite busy so
|
||||||
especially for large patches this can take several weeks.
|
especially for large patches this can take several weeks.
|
||||||
|
|
||||||
If you feel that the review process is too slow and you are willing to try to
|
|
||||||
take over maintainership of the area of code you change then just clone
|
|
||||||
git master and maintain the area of code there. We will merge each area from
|
|
||||||
where its best maintained.
|
|
||||||
|
|
||||||
When resubmitting patches, please do not make any significant changes
|
When resubmitting patches, please do not make any significant changes
|
||||||
not related to the comments received during review. Such patches will
|
not related to the comments received during review. Such patches will
|
||||||
be rejected. Instead, submit significant changes or new features as
|
be rejected. Instead, submit significant changes or new features as
|
||||||
separate patches.
|
separate patches.
|
||||||
|
|
||||||
@anchor{Regression tests}
|
|
||||||
@section Regression tests
|
@section Regression tests
|
||||||
|
|
||||||
Before submitting a patch (or committing to the repository), you should at least
|
Before submitting a patch (or committing to the repository), you should at least
|
||||||
test that you did not break anything.
|
test that you did not break anything.
|
||||||
|
|
||||||
Running 'make fate' accomplishes this, please see @url{fate.html} for details.
|
The regression tests build a synthetic video stream and a synthetic
|
||||||
|
audio stream. These are then encoded and decoded with all codecs or
|
||||||
|
formats. The CRC (or MD5) of each generated file is recorded in a
|
||||||
|
result file. A 'diff' is launched to compare the reference results and
|
||||||
|
the result file. The output is checked immediately after each test
|
||||||
|
has run.
|
||||||
|
|
||||||
|
The regression tests then go on to test the FFserver code with a
|
||||||
|
limited set of streams. It is important that this step runs correctly
|
||||||
|
as well.
|
||||||
|
|
||||||
|
Run 'make test' to test all the codecs and formats. Commands like
|
||||||
|
'make regtest-mpeg2' can be used to run a single test. By default,
|
||||||
|
make will abort if any test fails. To run all tests regardless,
|
||||||
|
use make -k. To get a more verbose output, use 'make V=1 test' or
|
||||||
|
'make V=2 test'.
|
||||||
|
|
||||||
|
Run 'make fulltest' to test all the codecs, formats and FFserver.
|
||||||
|
|
||||||
[Of course, some patches may change the results of the regression tests. In
|
[Of course, some patches may change the results of the regression tests. In
|
||||||
this case, the reference results of the regression tests shall be modified
|
this case, the reference results of the regression tests shall be modified
|
||||||
accordingly].
|
accordingly].
|
||||||
|
|
||||||
@subsection Adding files to the fate-suite dataset
|
|
||||||
|
|
||||||
When there is no muxer or encoder available to generate test media for a
|
|
||||||
specific test then the media has to be inlcuded in the fate-suite.
|
|
||||||
First please make sure that the sample file is as small as possible to test the
|
|
||||||
respective decoder or demuxer sufficiently. Large files increase network
|
|
||||||
bandwidth and disk space requirements.
|
|
||||||
Once you have a working fate test and fate sample, provide in the commit
|
|
||||||
message or introductionary message for the patch series that you post to
|
|
||||||
the ffmpeg-devel mailing list, a direct link to download the sample media.
|
|
||||||
|
|
||||||
|
|
||||||
@subsection Visualizing Test Coverage
|
|
||||||
|
|
||||||
The FFmpeg build system allows visualizing the test coverage in an easy
|
|
||||||
manner with the coverage tools @code{gcov}/@code{lcov}. This involves
|
|
||||||
the following steps:
|
|
||||||
|
|
||||||
@enumerate
|
|
||||||
@item
|
|
||||||
Configure to compile with instrumentation enabled:
|
|
||||||
@code{configure --toolchain=gcov}.
|
|
||||||
@item
|
|
||||||
Run your test case, either manually or via FATE. This can be either
|
|
||||||
the full FATE regression suite, or any arbitrary invocation of any
|
|
||||||
front-end tool provided by FFmpeg, in any combination.
|
|
||||||
@item
|
|
||||||
Run @code{make lcov} to generate coverage data in HTML format.
|
|
||||||
@item
|
|
||||||
View @code{lcov/index.html} in your preferred HTML viewer.
|
|
||||||
@end enumerate
|
|
||||||
|
|
||||||
You can use the command @code{make lcov-reset} to reset the coverage
|
|
||||||
measurements. You will need to rerun @code{make lcov} after running a
|
|
||||||
new test.
|
|
||||||
|
|
||||||
@subsection Using Valgrind
|
|
||||||
|
|
||||||
The configure script provides a shortcut for using valgrind to spot bugs
|
|
||||||
related to memory handling. Just add the option
|
|
||||||
@code{--toolchain=valgrind-memcheck} or @code{--toolchain=valgrind-massif}
|
|
||||||
to your configure line, and reasonable defaults will be set for running
|
|
||||||
FATE under the supervision of either the @strong{memcheck} or the
|
|
||||||
@strong{massif} tool of the valgrind suite.
|
|
||||||
|
|
||||||
In case you need finer control over how valgrind is invoked, use the
|
|
||||||
@code{--target-exec='valgrind <your_custom_valgrind_options>} option in
|
|
||||||
your configure line instead.
|
|
||||||
|
|
||||||
@anchor{Release process}
|
|
||||||
@section Release process
|
|
||||||
|
|
||||||
FFmpeg maintains a set of @strong{release branches}, which are the
|
|
||||||
recommended deliverable for system integrators and distributors (such as
|
|
||||||
Linux distributions, etc.). At regular times, a @strong{release
|
|
||||||
manager} prepares, tests and publishes tarballs on the
|
|
||||||
@url{http://ffmpeg.org} website.
|
|
||||||
|
|
||||||
There are two kinds of releases:
|
|
||||||
|
|
||||||
@enumerate
|
|
||||||
@item
|
|
||||||
@strong{Major releases} always include the latest and greatest
|
|
||||||
features and functionality.
|
|
||||||
@item
|
|
||||||
@strong{Point releases} are cut from @strong{release} branches,
|
|
||||||
which are named @code{release/X}, with @code{X} being the release
|
|
||||||
version number.
|
|
||||||
@end enumerate
|
|
||||||
|
|
||||||
Note that we promise to our users that shared libraries from any FFmpeg
|
|
||||||
release never break programs that have been @strong{compiled} against
|
|
||||||
previous versions of @strong{the same release series} in any case!
|
|
||||||
|
|
||||||
However, from time to time, we do make API changes that require adaptations
|
|
||||||
in applications. Such changes are only allowed in (new) major releases and
|
|
||||||
require further steps such as bumping library version numbers and/or
|
|
||||||
adjustments to the symbol versioning file. Please discuss such changes
|
|
||||||
on the @strong{ffmpeg-devel} mailing list in time to allow forward planning.
|
|
||||||
|
|
||||||
@anchor{Criteria for Point Releases}
|
|
||||||
@subsection Criteria for Point Releases
|
|
||||||
|
|
||||||
Changes that match the following criteria are valid candidates for
|
|
||||||
inclusion into a point release:
|
|
||||||
|
|
||||||
@enumerate
|
|
||||||
@item
|
|
||||||
Fixes a security issue, preferably identified by a @strong{CVE
|
|
||||||
number} issued by @url{http://cve.mitre.org/}.
|
|
||||||
@item
|
|
||||||
Fixes a documented bug in @url{https://trac.ffmpeg.org}.
|
|
||||||
@item
|
|
||||||
Improves the included documentation.
|
|
||||||
@item
|
|
||||||
Retains both source code and binary compatibility with previous
|
|
||||||
point releases of the same release branch.
|
|
||||||
@end enumerate
|
|
||||||
|
|
||||||
The order for checking the rules is (1 OR 2 OR 3) AND 4.
|
|
||||||
|
|
||||||
|
|
||||||
@subsection Release Checklist
|
|
||||||
|
|
||||||
The release process involves the following steps:
|
|
||||||
|
|
||||||
@enumerate
|
|
||||||
@item
|
|
||||||
Ensure that the @file{RELEASE} file contains the version number for
|
|
||||||
the upcoming release.
|
|
||||||
@item
|
|
||||||
Add the release at @url{https://trac.ffmpeg.org/admin/ticket/versions}.
|
|
||||||
@item
|
|
||||||
Announce the intent to do a release to the mailing list.
|
|
||||||
@item
|
|
||||||
Make sure all relevant security fixes have been backported. See
|
|
||||||
@url{https://ffmpeg.org/security.html}.
|
|
||||||
@item
|
|
||||||
Ensure that the FATE regression suite still passes in the release
|
|
||||||
branch on at least @strong{i386} and @strong{amd64}
|
|
||||||
(cf. @ref{Regression tests}).
|
|
||||||
@item
|
|
||||||
Prepare the release tarballs in @code{bz2} and @code{gz} formats, and
|
|
||||||
supplementing files that contain @code{gpg} signatures
|
|
||||||
@item
|
|
||||||
Publish the tarballs at @url{http://ffmpeg.org/releases}. Create and
|
|
||||||
push an annotated tag in the form @code{nX}, with @code{X}
|
|
||||||
containing the version number.
|
|
||||||
@item
|
|
||||||
Propose and send a patch to the @strong{ffmpeg-devel} mailing list
|
|
||||||
with a news entry for the website.
|
|
||||||
@item
|
|
||||||
Publish the news entry.
|
|
||||||
@item
|
|
||||||
Send announcement to the mailing list.
|
|
||||||
@end enumerate
|
|
||||||
|
|
||||||
@bye
|
@bye
|
||||||
|
|||||||
@@ -1,21 +0,0 @@
|
|||||||
@chapter Device Options
|
|
||||||
@c man begin DEVICE OPTIONS
|
|
||||||
|
|
||||||
The libavdevice library provides the same interface as
|
|
||||||
libavformat. Namely, an input device is considered like a demuxer, and
|
|
||||||
an output device like a muxer, and the interface and generic device
|
|
||||||
options are the same provided by libavformat (see the ffmpeg-formats
|
|
||||||
manual).
|
|
||||||
|
|
||||||
In addition each input or output device may support so-called private
|
|
||||||
options, which are specific for that component.
|
|
||||||
|
|
||||||
Options may be set by specifying -@var{option} @var{value} in the
|
|
||||||
FFmpeg tools, or by setting the value explicitly in the device
|
|
||||||
@code{AVFormatContext} options or using the @file{libavutil/opt.h} API
|
|
||||||
for programmatic use.
|
|
||||||
|
|
||||||
@c man end DEVICE OPTIONS
|
|
||||||
|
|
||||||
@include indevs.texi
|
|
||||||
@include outdevs.texi
|
|
||||||
@@ -1,14 +0,0 @@
|
|||||||
#!/bin/sh
|
|
||||||
|
|
||||||
SRC_PATH="${1}"
|
|
||||||
DOXYFILE="${2}"
|
|
||||||
|
|
||||||
shift 2
|
|
||||||
|
|
||||||
doxygen - <<EOF
|
|
||||||
@INCLUDE = ${DOXYFILE}
|
|
||||||
INPUT = $@
|
|
||||||
HTML_HEADER = ${SRC_PATH}/doc/doxy/header.html
|
|
||||||
HTML_FOOTER = ${SRC_PATH}/doc/doxy/footer.html
|
|
||||||
HTML_STYLESHEET = ${SRC_PATH}/doc/doxy/doxy_stylesheet.css
|
|
||||||
EOF
|
|
||||||
File diff suppressed because it is too large
Load Diff
@@ -1,9 +0,0 @@
|
|||||||
|
|
||||||
<footer class="footer pagination-right">
|
|
||||||
<span class="label label-info">
|
|
||||||
Generated on $datetime for $projectname by <a href="http://www.doxygen.org/index.html">doxygen</a> $doxygenversion
|
|
||||||
</span>
|
|
||||||
</footer>
|
|
||||||
</div>
|
|
||||||
</body>
|
|
||||||
</html>
|
|
||||||
@@ -1,16 +0,0 @@
|
|||||||
<!DOCTYPE html>
|
|
||||||
<html>
|
|
||||||
<head>
|
|
||||||
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
|
|
||||||
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
|
|
||||||
<!--BEGIN PROJECT_NAME--><title>$projectname: $title</title><!--END PROJECT_NAME-->
|
|
||||||
<!--BEGIN !PROJECT_NAME--><title>$title</title><!--END !PROJECT_NAME-->
|
|
||||||
<link href="$relpath$doxy_stylesheet.css" rel="stylesheet" type="text/css" />
|
|
||||||
<!--Header replace -->
|
|
||||||
|
|
||||||
</head>
|
|
||||||
|
|
||||||
<div class="container">
|
|
||||||
|
|
||||||
<!--Header replace -->
|
|
||||||
<div class="menu">
|
|
||||||
1150
doc/encoders.texi
1150
doc/encoders.texi
File diff suppressed because it is too large
Load Diff
174
doc/errno.txt
174
doc/errno.txt
@@ -1,174 +0,0 @@
|
|||||||
The following table lists most error codes found in various operating
|
|
||||||
systems supported by FFmpeg.
|
|
||||||
|
|
||||||
OS
|
|
||||||
Code Std F LBMWwb Text (YMMV)
|
|
||||||
|
|
||||||
E2BIG POSIX ++++++ Argument list too long
|
|
||||||
EACCES POSIX ++++++ Permission denied
|
|
||||||
EADDRINUSE POSIX +++..+ Address in use
|
|
||||||
EADDRNOTAVAIL POSIX +++..+ Cannot assign requested address
|
|
||||||
EADV +..... Advertise error
|
|
||||||
EAFNOSUPPORT POSIX +++..+ Address family not supported
|
|
||||||
EAGAIN POSIX + ++++++ Resource temporarily unavailable
|
|
||||||
EALREADY POSIX +++..+ Operation already in progress
|
|
||||||
EAUTH .++... Authentication error
|
|
||||||
EBADARCH ..+... Bad CPU type in executable
|
|
||||||
EBADE +..... Invalid exchange
|
|
||||||
EBADEXEC ..+... Bad executable
|
|
||||||
EBADF POSIX ++++++ Bad file descriptor
|
|
||||||
EBADFD +..... File descriptor in bad state
|
|
||||||
EBADMACHO ..+... Malformed Macho file
|
|
||||||
EBADMSG POSIX ++4... Bad message
|
|
||||||
EBADR +..... Invalid request descriptor
|
|
||||||
EBADRPC .++... RPC struct is bad
|
|
||||||
EBADRQC +..... Invalid request code
|
|
||||||
EBADSLT +..... Invalid slot
|
|
||||||
EBFONT +..... Bad font file format
|
|
||||||
EBUSY POSIX - ++++++ Device or resource busy
|
|
||||||
ECANCELED POSIX +++... Operation canceled
|
|
||||||
ECHILD POSIX ++++++ No child processes
|
|
||||||
ECHRNG +..... Channel number out of range
|
|
||||||
ECOMM +..... Communication error on send
|
|
||||||
ECONNABORTED POSIX +++..+ Software caused connection abort
|
|
||||||
ECONNREFUSED POSIX - +++ss+ Connection refused
|
|
||||||
ECONNRESET POSIX +++..+ Connection reset
|
|
||||||
EDEADLK POSIX ++++++ Resource deadlock avoided
|
|
||||||
EDEADLOCK +..++. File locking deadlock error
|
|
||||||
EDESTADDRREQ POSIX +++... Destination address required
|
|
||||||
EDEVERR ..+... Device error
|
|
||||||
EDOM C89 - ++++++ Numerical argument out of domain
|
|
||||||
EDOOFUS .F.... Programming error
|
|
||||||
EDOTDOT +..... RFS specific error
|
|
||||||
EDQUOT POSIX +++... Disc quota exceeded
|
|
||||||
EEXIST POSIX ++++++ File exists
|
|
||||||
EFAULT POSIX - ++++++ Bad address
|
|
||||||
EFBIG POSIX - ++++++ File too large
|
|
||||||
EFTYPE .++... Inappropriate file type or format
|
|
||||||
EHOSTDOWN +++... Host is down
|
|
||||||
EHOSTUNREACH POSIX +++..+ No route to host
|
|
||||||
EHWPOISON +..... Memory page has hardware error
|
|
||||||
EIDRM POSIX +++... Identifier removed
|
|
||||||
EILSEQ C99 ++++++ Illegal byte sequence
|
|
||||||
EINPROGRESS POSIX - +++ss+ Operation in progress
|
|
||||||
EINTR POSIX - ++++++ Interrupted system call
|
|
||||||
EINVAL POSIX + ++++++ Invalid argument
|
|
||||||
EIO POSIX + ++++++ I/O error
|
|
||||||
EISCONN POSIX +++..+ Socket is already connected
|
|
||||||
EISDIR POSIX ++++++ Is a directory
|
|
||||||
EISNAM +..... Is a named type file
|
|
||||||
EKEYEXPIRED +..... Key has expired
|
|
||||||
EKEYREJECTED +..... Key was rejected by service
|
|
||||||
EKEYREVOKED +..... Key has been revoked
|
|
||||||
EL2HLT +..... Level 2 halted
|
|
||||||
EL2NSYNC +..... Level 2 not synchronized
|
|
||||||
EL3HLT +..... Level 3 halted
|
|
||||||
EL3RST +..... Level 3 reset
|
|
||||||
ELIBACC +..... Can not access a needed shared library
|
|
||||||
ELIBBAD +..... Accessing a corrupted shared library
|
|
||||||
ELIBEXEC +..... Cannot exec a shared library directly
|
|
||||||
ELIBMAX +..... Too many shared libraries
|
|
||||||
ELIBSCN +..... .lib section in a.out corrupted
|
|
||||||
ELNRNG +..... Link number out of range
|
|
||||||
ELOOP POSIX +++..+ Too many levels of symbolic links
|
|
||||||
EMEDIUMTYPE +..... Wrong medium type
|
|
||||||
EMFILE POSIX ++++++ Too many open files
|
|
||||||
EMLINK POSIX ++++++ Too many links
|
|
||||||
EMSGSIZE POSIX +++..+ Message too long
|
|
||||||
EMULTIHOP POSIX ++4... Multihop attempted
|
|
||||||
ENAMETOOLONG POSIX - ++++++ Filen ame too long
|
|
||||||
ENAVAIL +..... No XENIX semaphores available
|
|
||||||
ENEEDAUTH .++... Need authenticator
|
|
||||||
ENETDOWN POSIX +++..+ Network is down
|
|
||||||
ENETRESET SUSv3 +++..+ Network dropped connection on reset
|
|
||||||
ENETUNREACH POSIX +++..+ Network unreachable
|
|
||||||
ENFILE POSIX ++++++ Too many open files in system
|
|
||||||
ENOANO +..... No anode
|
|
||||||
ENOATTR .++... Attribute not found
|
|
||||||
ENOBUFS POSIX - +++..+ No buffer space available
|
|
||||||
ENOCSI +..... No CSI structure available
|
|
||||||
ENODATA XSR +N4... No message available
|
|
||||||
ENODEV POSIX - ++++++ No such device
|
|
||||||
ENOENT POSIX - ++++++ No such file or directory
|
|
||||||
ENOEXEC POSIX ++++++ Exec format error
|
|
||||||
ENOFILE ...++. No such file or directory
|
|
||||||
ENOKEY +..... Required key not available
|
|
||||||
ENOLCK POSIX ++++++ No locks available
|
|
||||||
ENOLINK POSIX ++4... Link has been severed
|
|
||||||
ENOMEDIUM +..... No medium found
|
|
||||||
ENOMEM POSIX ++++++ Not enough space
|
|
||||||
ENOMSG POSIX +++..+ No message of desired type
|
|
||||||
ENONET +..... Machine is not on the network
|
|
||||||
ENOPKG +..... Package not installed
|
|
||||||
ENOPROTOOPT POSIX +++..+ Protocol not available
|
|
||||||
ENOSPC POSIX ++++++ No space left on device
|
|
||||||
ENOSR XSR +N4... No STREAM resources
|
|
||||||
ENOSTR XSR +N4... Not a STREAM
|
|
||||||
ENOSYS POSIX + ++++++ Function not implemented
|
|
||||||
ENOTBLK +++... Block device required
|
|
||||||
ENOTCONN POSIX +++..+ Socket is not connected
|
|
||||||
ENOTDIR POSIX ++++++ Not a directory
|
|
||||||
ENOTEMPTY POSIX ++++++ Directory not empty
|
|
||||||
ENOTNAM +..... Not a XENIX named type file
|
|
||||||
ENOTRECOVERABLE SUSv4 - +..... State not recoverable
|
|
||||||
ENOTSOCK POSIX +++..+ Socket operation on non-socket
|
|
||||||
ENOTSUP POSIX +++... Operation not supported
|
|
||||||
ENOTTY POSIX ++++++ Inappropriate I/O control operation
|
|
||||||
ENOTUNIQ +..... Name not unique on network
|
|
||||||
ENXIO POSIX ++++++ No such device or address
|
|
||||||
EOPNOTSUPP POSIX +++..+ Operation not supported (on socket)
|
|
||||||
EOVERFLOW POSIX +++..+ Value too large to be stored in data type
|
|
||||||
EOWNERDEAD SUSv4 +..... Owner died
|
|
||||||
EPERM POSIX - ++++++ Operation not permitted
|
|
||||||
EPFNOSUPPORT +++..+ Protocol family not supported
|
|
||||||
EPIPE POSIX - ++++++ Broken pipe
|
|
||||||
EPROCLIM .++... Too many processes
|
|
||||||
EPROCUNAVAIL .++... Bad procedure for program
|
|
||||||
EPROGMISMATCH .++... Program version wrong
|
|
||||||
EPROGUNAVAIL .++... RPC prog. not avail
|
|
||||||
EPROTO POSIX ++4... Protocol error
|
|
||||||
EPROTONOSUPPORT POSIX - +++ss+ Protocol not supported
|
|
||||||
EPROTOTYPE POSIX +++..+ Protocol wrong type for socket
|
|
||||||
EPWROFF ..+... Device power is off
|
|
||||||
ERANGE C89 - ++++++ Result too large
|
|
||||||
EREMCHG +..... Remote address changed
|
|
||||||
EREMOTE +++... Object is remote
|
|
||||||
EREMOTEIO +..... Remote I/O error
|
|
||||||
ERESTART +..... Interrupted system call should be restarted
|
|
||||||
ERFKILL +..... Operation not possible due to RF-kill
|
|
||||||
EROFS POSIX ++++++ Read-only file system
|
|
||||||
ERPCMISMATCH .++... RPC version wrong
|
|
||||||
ESHLIBVERS ..+... Shared library version mismatch
|
|
||||||
ESHUTDOWN +++..+ Cannot send after socket shutdown
|
|
||||||
ESOCKTNOSUPPORT +++... Socket type not supported
|
|
||||||
ESPIPE POSIX ++++++ Illegal seek
|
|
||||||
ESRCH POSIX ++++++ No such process
|
|
||||||
ESRMNT +..... Srmount error
|
|
||||||
ESTALE POSIX +++..+ Stale NFS file handle
|
|
||||||
ESTRPIPE +..... Streams pipe error
|
|
||||||
ETIME XSR +N4... Stream ioctl timeout
|
|
||||||
ETIMEDOUT POSIX - +++ss+ Connection timed out
|
|
||||||
ETOOMANYREFS +++... Too many references: cannot splice
|
|
||||||
ETXTBSY POSIX +++... Text file busy
|
|
||||||
EUCLEAN +..... Structure needs cleaning
|
|
||||||
EUNATCH +..... Protocol driver not attached
|
|
||||||
EUSERS +++... Too many users
|
|
||||||
EWOULDBLOCK POSIX +++..+ Operation would block
|
|
||||||
EXDEV POSIX ++++++ Cross-device link
|
|
||||||
EXFULL +..... Exchange full
|
|
||||||
|
|
||||||
Notations:
|
|
||||||
|
|
||||||
F: used in FFmpeg (-: a few times, +: a lot)
|
|
||||||
|
|
||||||
SUSv3: Single Unix Specification, version 3
|
|
||||||
SUSv4: Single Unix Specification, version 4
|
|
||||||
XSR: XSI STREAMS (obsolete)
|
|
||||||
|
|
||||||
OS: availability on some supported operating systems
|
|
||||||
L: GNU/Linux
|
|
||||||
B: BSD (F: FreeBSD, N: NetBSD)
|
|
||||||
M: MacOS X
|
|
||||||
W: Microsoft Windows (s: emulated with winsock, see libavformat/network.h)
|
|
||||||
w: Mingw32 (3.17) and Mingw64 (2.0.1)
|
|
||||||
b: BeOS
|
|
||||||
@@ -1,37 +0,0 @@
|
|||||||
# use pkg-config for getting CFLAGS and LDLIBS
|
|
||||||
FFMPEG_LIBS= libavdevice \
|
|
||||||
libavformat \
|
|
||||||
libavfilter \
|
|
||||||
libavcodec \
|
|
||||||
libswresample \
|
|
||||||
libswscale \
|
|
||||||
libavutil \
|
|
||||||
|
|
||||||
CFLAGS += -Wall -g
|
|
||||||
CFLAGS := $(shell pkg-config --cflags $(FFMPEG_LIBS)) $(CFLAGS)
|
|
||||||
LDLIBS := $(shell pkg-config --libs $(FFMPEG_LIBS)) $(LDLIBS)
|
|
||||||
|
|
||||||
EXAMPLES= decoding_encoding \
|
|
||||||
demuxing \
|
|
||||||
filtering_video \
|
|
||||||
filtering_audio \
|
|
||||||
metadata \
|
|
||||||
muxing \
|
|
||||||
resampling_audio \
|
|
||||||
scaling_video \
|
|
||||||
|
|
||||||
OBJS=$(addsuffix .o,$(EXAMPLES))
|
|
||||||
|
|
||||||
# the following examples make explicit use of the math library
|
|
||||||
decoding_encoding: LDLIBS += -lm
|
|
||||||
muxing: LDLIBS += -lm
|
|
||||||
|
|
||||||
.phony: all clean-test clean
|
|
||||||
|
|
||||||
all: $(OBJS) $(EXAMPLES)
|
|
||||||
|
|
||||||
clean-test:
|
|
||||||
$(RM) test*.pgm test.h264 test.mp2 test.sw test.mpg
|
|
||||||
|
|
||||||
clean: clean-test
|
|
||||||
$(RM) $(EXAMPLES) $(OBJS)
|
|
||||||
@@ -1,18 +0,0 @@
|
|||||||
FFmpeg examples README
|
|
||||||
----------------------
|
|
||||||
|
|
||||||
Both following use cases rely on pkg-config and make, thus make sure
|
|
||||||
that you have them installed and working on your system.
|
|
||||||
|
|
||||||
|
|
||||||
1) Build the installed examples in a generic read/write user directory
|
|
||||||
|
|
||||||
Copy to a read/write user directory and just use "make", it will link
|
|
||||||
to the libraries on your system, assuming the PKG_CONFIG_PATH is
|
|
||||||
correctly configured.
|
|
||||||
|
|
||||||
2) Build the examples in-tree
|
|
||||||
|
|
||||||
Assuming you are in the source FFmpeg checkout directory, you need to build
|
|
||||||
FFmpeg (no need to make install in any prefix). Then you can go into the
|
|
||||||
doc/examples and run a command such as PKG_CONFIG_PATH=pc-uninstalled make.
|
|
||||||
@@ -1,650 +0,0 @@
|
|||||||
/*
|
|
||||||
* Copyright (c) 2001 Fabrice Bellard
|
|
||||||
*
|
|
||||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
||||||
* of this software and associated documentation files (the "Software"), to deal
|
|
||||||
* in the Software without restriction, including without limitation the rights
|
|
||||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
||||||
* copies of the Software, and to permit persons to whom the Software is
|
|
||||||
* furnished to do so, subject to the following conditions:
|
|
||||||
*
|
|
||||||
* The above copyright notice and this permission notice shall be included in
|
|
||||||
* all copies or substantial portions of the Software.
|
|
||||||
*
|
|
||||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
||||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
||||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
||||||
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
||||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
||||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
||||||
* THE SOFTWARE.
|
|
||||||
*/
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @file
|
|
||||||
* libavcodec API use example.
|
|
||||||
*
|
|
||||||
* Note that libavcodec only handles codecs (mpeg, mpeg4, etc...),
|
|
||||||
* not file formats (avi, vob, mp4, mov, mkv, mxf, flv, mpegts, mpegps, etc...). See library 'libavformat' for the
|
|
||||||
* format handling
|
|
||||||
* @example doc/examples/decoding_encoding.c
|
|
||||||
*/
|
|
||||||
|
|
||||||
#include <math.h>
|
|
||||||
|
|
||||||
#include <libavutil/opt.h>
|
|
||||||
#include <libavcodec/avcodec.h>
|
|
||||||
#include <libavutil/channel_layout.h>
|
|
||||||
#include <libavutil/common.h>
|
|
||||||
#include <libavutil/imgutils.h>
|
|
||||||
#include <libavutil/mathematics.h>
|
|
||||||
#include <libavutil/samplefmt.h>
|
|
||||||
|
|
||||||
#define INBUF_SIZE 4096
|
|
||||||
#define AUDIO_INBUF_SIZE 20480
|
|
||||||
#define AUDIO_REFILL_THRESH 4096
|
|
||||||
|
|
||||||
/* check that a given sample format is supported by the encoder */
|
|
||||||
static int check_sample_fmt(AVCodec *codec, enum AVSampleFormat sample_fmt)
|
|
||||||
{
|
|
||||||
const enum AVSampleFormat *p = codec->sample_fmts;
|
|
||||||
|
|
||||||
while (*p != AV_SAMPLE_FMT_NONE) {
|
|
||||||
if (*p == sample_fmt)
|
|
||||||
return 1;
|
|
||||||
p++;
|
|
||||||
}
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* just pick the highest supported samplerate */
|
|
||||||
static int select_sample_rate(AVCodec *codec)
|
|
||||||
{
|
|
||||||
const int *p;
|
|
||||||
int best_samplerate = 0;
|
|
||||||
|
|
||||||
if (!codec->supported_samplerates)
|
|
||||||
return 44100;
|
|
||||||
|
|
||||||
p = codec->supported_samplerates;
|
|
||||||
while (*p) {
|
|
||||||
best_samplerate = FFMAX(*p, best_samplerate);
|
|
||||||
p++;
|
|
||||||
}
|
|
||||||
return best_samplerate;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* select layout with the highest channel count */
|
|
||||||
static int select_channel_layout(AVCodec *codec)
|
|
||||||
{
|
|
||||||
const uint64_t *p;
|
|
||||||
uint64_t best_ch_layout = 0;
|
|
||||||
int best_nb_channels = 0;
|
|
||||||
|
|
||||||
if (!codec->channel_layouts)
|
|
||||||
return AV_CH_LAYOUT_STEREO;
|
|
||||||
|
|
||||||
p = codec->channel_layouts;
|
|
||||||
while (*p) {
|
|
||||||
int nb_channels = av_get_channel_layout_nb_channels(*p);
|
|
||||||
|
|
||||||
if (nb_channels > best_nb_channels) {
|
|
||||||
best_ch_layout = *p;
|
|
||||||
best_nb_channels = nb_channels;
|
|
||||||
}
|
|
||||||
p++;
|
|
||||||
}
|
|
||||||
return best_ch_layout;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Audio encoding example
|
|
||||||
*/
|
|
||||||
static void audio_encode_example(const char *filename)
|
|
||||||
{
|
|
||||||
AVCodec *codec;
|
|
||||||
AVCodecContext *c= NULL;
|
|
||||||
AVFrame *frame;
|
|
||||||
AVPacket pkt;
|
|
||||||
int i, j, k, ret, got_output;
|
|
||||||
int buffer_size;
|
|
||||||
FILE *f;
|
|
||||||
uint16_t *samples;
|
|
||||||
float t, tincr;
|
|
||||||
|
|
||||||
printf("Encode audio file %s\n", filename);
|
|
||||||
|
|
||||||
/* find the MP2 encoder */
|
|
||||||
codec = avcodec_find_encoder(AV_CODEC_ID_MP2);
|
|
||||||
if (!codec) {
|
|
||||||
fprintf(stderr, "Codec not found\n");
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
c = avcodec_alloc_context3(codec);
|
|
||||||
if (!c) {
|
|
||||||
fprintf(stderr, "Could not allocate audio codec context\n");
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* put sample parameters */
|
|
||||||
c->bit_rate = 64000;
|
|
||||||
|
|
||||||
/* check that the encoder supports s16 pcm input */
|
|
||||||
c->sample_fmt = AV_SAMPLE_FMT_S16;
|
|
||||||
if (!check_sample_fmt(codec, c->sample_fmt)) {
|
|
||||||
fprintf(stderr, "Encoder does not support sample format %s",
|
|
||||||
av_get_sample_fmt_name(c->sample_fmt));
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* select other audio parameters supported by the encoder */
|
|
||||||
c->sample_rate = select_sample_rate(codec);
|
|
||||||
c->channel_layout = select_channel_layout(codec);
|
|
||||||
c->channels = av_get_channel_layout_nb_channels(c->channel_layout);
|
|
||||||
|
|
||||||
/* open it */
|
|
||||||
if (avcodec_open2(c, codec, NULL) < 0) {
|
|
||||||
fprintf(stderr, "Could not open codec\n");
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
f = fopen(filename, "wb");
|
|
||||||
if (!f) {
|
|
||||||
fprintf(stderr, "Could not open %s\n", filename);
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* frame containing input raw audio */
|
|
||||||
frame = avcodec_alloc_frame();
|
|
||||||
if (!frame) {
|
|
||||||
fprintf(stderr, "Could not allocate audio frame\n");
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
frame->nb_samples = c->frame_size;
|
|
||||||
frame->format = c->sample_fmt;
|
|
||||||
frame->channel_layout = c->channel_layout;
|
|
||||||
|
|
||||||
/* the codec gives us the frame size, in samples,
|
|
||||||
* we calculate the size of the samples buffer in bytes */
|
|
||||||
buffer_size = av_samples_get_buffer_size(NULL, c->channels, c->frame_size,
|
|
||||||
c->sample_fmt, 0);
|
|
||||||
samples = av_malloc(buffer_size);
|
|
||||||
if (!samples) {
|
|
||||||
fprintf(stderr, "Could not allocate %d bytes for samples buffer\n",
|
|
||||||
buffer_size);
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
/* setup the data pointers in the AVFrame */
|
|
||||||
ret = avcodec_fill_audio_frame(frame, c->channels, c->sample_fmt,
|
|
||||||
(const uint8_t*)samples, buffer_size, 0);
|
|
||||||
if (ret < 0) {
|
|
||||||
fprintf(stderr, "Could not setup audio frame\n");
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* encode a single tone sound */
|
|
||||||
t = 0;
|
|
||||||
tincr = 2 * M_PI * 440.0 / c->sample_rate;
|
|
||||||
for(i=0;i<200;i++) {
|
|
||||||
av_init_packet(&pkt);
|
|
||||||
pkt.data = NULL; // packet data will be allocated by the encoder
|
|
||||||
pkt.size = 0;
|
|
||||||
|
|
||||||
for (j = 0; j < c->frame_size; j++) {
|
|
||||||
samples[2*j] = (int)(sin(t) * 10000);
|
|
||||||
|
|
||||||
for (k = 1; k < c->channels; k++)
|
|
||||||
samples[2*j + k] = samples[2*j];
|
|
||||||
t += tincr;
|
|
||||||
}
|
|
||||||
/* encode the samples */
|
|
||||||
ret = avcodec_encode_audio2(c, &pkt, frame, &got_output);
|
|
||||||
if (ret < 0) {
|
|
||||||
fprintf(stderr, "Error encoding audio frame\n");
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
if (got_output) {
|
|
||||||
fwrite(pkt.data, 1, pkt.size, f);
|
|
||||||
av_free_packet(&pkt);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/* get the delayed frames */
|
|
||||||
for (got_output = 1; got_output; i++) {
|
|
||||||
ret = avcodec_encode_audio2(c, &pkt, NULL, &got_output);
|
|
||||||
if (ret < 0) {
|
|
||||||
fprintf(stderr, "Error encoding frame\n");
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
if (got_output) {
|
|
||||||
fwrite(pkt.data, 1, pkt.size, f);
|
|
||||||
av_free_packet(&pkt);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
fclose(f);
|
|
||||||
|
|
||||||
av_freep(&samples);
|
|
||||||
avcodec_free_frame(&frame);
|
|
||||||
avcodec_close(c);
|
|
||||||
av_free(c);
|
|
||||||
}
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Audio decoding.
|
|
||||||
*/
|
|
||||||
static void audio_decode_example(const char *outfilename, const char *filename)
|
|
||||||
{
|
|
||||||
AVCodec *codec;
|
|
||||||
AVCodecContext *c= NULL;
|
|
||||||
int len;
|
|
||||||
FILE *f, *outfile;
|
|
||||||
uint8_t inbuf[AUDIO_INBUF_SIZE + FF_INPUT_BUFFER_PADDING_SIZE];
|
|
||||||
AVPacket avpkt;
|
|
||||||
AVFrame *decoded_frame = NULL;
|
|
||||||
|
|
||||||
av_init_packet(&avpkt);
|
|
||||||
|
|
||||||
printf("Decode audio file %s to %s\n", filename, outfilename);
|
|
||||||
|
|
||||||
/* find the mpeg audio decoder */
|
|
||||||
codec = avcodec_find_decoder(AV_CODEC_ID_MP2);
|
|
||||||
if (!codec) {
|
|
||||||
fprintf(stderr, "Codec not found\n");
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
c = avcodec_alloc_context3(codec);
|
|
||||||
if (!c) {
|
|
||||||
fprintf(stderr, "Could not allocate audio codec context\n");
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* open it */
|
|
||||||
if (avcodec_open2(c, codec, NULL) < 0) {
|
|
||||||
fprintf(stderr, "Could not open codec\n");
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
f = fopen(filename, "rb");
|
|
||||||
if (!f) {
|
|
||||||
fprintf(stderr, "Could not open %s\n", filename);
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
outfile = fopen(outfilename, "wb");
|
|
||||||
if (!outfile) {
|
|
||||||
av_free(c);
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* decode until eof */
|
|
||||||
avpkt.data = inbuf;
|
|
||||||
avpkt.size = fread(inbuf, 1, AUDIO_INBUF_SIZE, f);
|
|
||||||
|
|
||||||
while (avpkt.size > 0) {
|
|
||||||
int got_frame = 0;
|
|
||||||
|
|
||||||
if (!decoded_frame) {
|
|
||||||
if (!(decoded_frame = avcodec_alloc_frame())) {
|
|
||||||
fprintf(stderr, "Could not allocate audio frame\n");
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
} else
|
|
||||||
avcodec_get_frame_defaults(decoded_frame);
|
|
||||||
|
|
||||||
len = avcodec_decode_audio4(c, decoded_frame, &got_frame, &avpkt);
|
|
||||||
if (len < 0) {
|
|
||||||
fprintf(stderr, "Error while decoding\n");
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
if (got_frame) {
|
|
||||||
/* if a frame has been decoded, output it */
|
|
||||||
int data_size = av_samples_get_buffer_size(NULL, c->channels,
|
|
||||||
decoded_frame->nb_samples,
|
|
||||||
c->sample_fmt, 1);
|
|
||||||
fwrite(decoded_frame->data[0], 1, data_size, outfile);
|
|
||||||
}
|
|
||||||
avpkt.size -= len;
|
|
||||||
avpkt.data += len;
|
|
||||||
avpkt.dts =
|
|
||||||
avpkt.pts = AV_NOPTS_VALUE;
|
|
||||||
if (avpkt.size < AUDIO_REFILL_THRESH) {
|
|
||||||
/* Refill the input buffer, to avoid trying to decode
|
|
||||||
* incomplete frames. Instead of this, one could also use
|
|
||||||
* a parser, or use a proper container format through
|
|
||||||
* libavformat. */
|
|
||||||
memmove(inbuf, avpkt.data, avpkt.size);
|
|
||||||
avpkt.data = inbuf;
|
|
||||||
len = fread(avpkt.data + avpkt.size, 1,
|
|
||||||
AUDIO_INBUF_SIZE - avpkt.size, f);
|
|
||||||
if (len > 0)
|
|
||||||
avpkt.size += len;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
fclose(outfile);
|
|
||||||
fclose(f);
|
|
||||||
|
|
||||||
avcodec_close(c);
|
|
||||||
av_free(c);
|
|
||||||
avcodec_free_frame(&decoded_frame);
|
|
||||||
}
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Video encoding example
|
|
||||||
*/
|
|
||||||
static void video_encode_example(const char *filename, int codec_id)
|
|
||||||
{
|
|
||||||
AVCodec *codec;
|
|
||||||
AVCodecContext *c= NULL;
|
|
||||||
int i, ret, x, y, got_output;
|
|
||||||
FILE *f;
|
|
||||||
AVFrame *frame;
|
|
||||||
AVPacket pkt;
|
|
||||||
uint8_t endcode[] = { 0, 0, 1, 0xb7 };
|
|
||||||
|
|
||||||
printf("Encode video file %s\n", filename);
|
|
||||||
|
|
||||||
/* find the mpeg1 video encoder */
|
|
||||||
codec = avcodec_find_encoder(codec_id);
|
|
||||||
if (!codec) {
|
|
||||||
fprintf(stderr, "Codec not found\n");
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
c = avcodec_alloc_context3(codec);
|
|
||||||
if (!c) {
|
|
||||||
fprintf(stderr, "Could not allocate video codec context\n");
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* put sample parameters */
|
|
||||||
c->bit_rate = 400000;
|
|
||||||
/* resolution must be a multiple of two */
|
|
||||||
c->width = 352;
|
|
||||||
c->height = 288;
|
|
||||||
/* frames per second */
|
|
||||||
c->time_base= (AVRational){1,25};
|
|
||||||
c->gop_size = 10; /* emit one intra frame every ten frames */
|
|
||||||
c->max_b_frames=1;
|
|
||||||
c->pix_fmt = AV_PIX_FMT_YUV420P;
|
|
||||||
|
|
||||||
if(codec_id == AV_CODEC_ID_H264)
|
|
||||||
av_opt_set(c->priv_data, "preset", "slow", 0);
|
|
||||||
|
|
||||||
/* open it */
|
|
||||||
if (avcodec_open2(c, codec, NULL) < 0) {
|
|
||||||
fprintf(stderr, "Could not open codec\n");
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
f = fopen(filename, "wb");
|
|
||||||
if (!f) {
|
|
||||||
fprintf(stderr, "Could not open %s\n", filename);
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
frame = avcodec_alloc_frame();
|
|
||||||
if (!frame) {
|
|
||||||
fprintf(stderr, "Could not allocate video frame\n");
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
frame->format = c->pix_fmt;
|
|
||||||
frame->width = c->width;
|
|
||||||
frame->height = c->height;
|
|
||||||
|
|
||||||
/* the image can be allocated by any means and av_image_alloc() is
|
|
||||||
* just the most convenient way if av_malloc() is to be used */
|
|
||||||
ret = av_image_alloc(frame->data, frame->linesize, c->width, c->height,
|
|
||||||
c->pix_fmt, 32);
|
|
||||||
if (ret < 0) {
|
|
||||||
fprintf(stderr, "Could not allocate raw picture buffer\n");
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* encode 1 second of video */
|
|
||||||
for(i=0;i<25;i++) {
|
|
||||||
av_init_packet(&pkt);
|
|
||||||
pkt.data = NULL; // packet data will be allocated by the encoder
|
|
||||||
pkt.size = 0;
|
|
||||||
|
|
||||||
fflush(stdout);
|
|
||||||
/* prepare a dummy image */
|
|
||||||
/* Y */
|
|
||||||
for(y=0;y<c->height;y++) {
|
|
||||||
for(x=0;x<c->width;x++) {
|
|
||||||
frame->data[0][y * frame->linesize[0] + x] = x + y + i * 3;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Cb and Cr */
|
|
||||||
for(y=0;y<c->height/2;y++) {
|
|
||||||
for(x=0;x<c->width/2;x++) {
|
|
||||||
frame->data[1][y * frame->linesize[1] + x] = 128 + y + i * 2;
|
|
||||||
frame->data[2][y * frame->linesize[2] + x] = 64 + x + i * 5;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
frame->pts = i;
|
|
||||||
|
|
||||||
/* encode the image */
|
|
||||||
ret = avcodec_encode_video2(c, &pkt, frame, &got_output);
|
|
||||||
if (ret < 0) {
|
|
||||||
fprintf(stderr, "Error encoding frame\n");
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
if (got_output) {
|
|
||||||
printf("Write frame %3d (size=%5d)\n", i, pkt.size);
|
|
||||||
fwrite(pkt.data, 1, pkt.size, f);
|
|
||||||
av_free_packet(&pkt);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/* get the delayed frames */
|
|
||||||
for (got_output = 1; got_output; i++) {
|
|
||||||
fflush(stdout);
|
|
||||||
|
|
||||||
ret = avcodec_encode_video2(c, &pkt, NULL, &got_output);
|
|
||||||
if (ret < 0) {
|
|
||||||
fprintf(stderr, "Error encoding frame\n");
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
if (got_output) {
|
|
||||||
printf("Write frame %3d (size=%5d)\n", i, pkt.size);
|
|
||||||
fwrite(pkt.data, 1, pkt.size, f);
|
|
||||||
av_free_packet(&pkt);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/* add sequence end code to have a real mpeg file */
|
|
||||||
fwrite(endcode, 1, sizeof(endcode), f);
|
|
||||||
fclose(f);
|
|
||||||
|
|
||||||
avcodec_close(c);
|
|
||||||
av_free(c);
|
|
||||||
av_freep(&frame->data[0]);
|
|
||||||
avcodec_free_frame(&frame);
|
|
||||||
printf("\n");
|
|
||||||
}
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Video decoding example
|
|
||||||
*/
|
|
||||||
|
|
||||||
static void pgm_save(unsigned char *buf, int wrap, int xsize, int ysize,
|
|
||||||
char *filename)
|
|
||||||
{
|
|
||||||
FILE *f;
|
|
||||||
int i;
|
|
||||||
|
|
||||||
f=fopen(filename,"w");
|
|
||||||
fprintf(f,"P5\n%d %d\n%d\n",xsize,ysize,255);
|
|
||||||
for(i=0;i<ysize;i++)
|
|
||||||
fwrite(buf + i * wrap,1,xsize,f);
|
|
||||||
fclose(f);
|
|
||||||
}
|
|
||||||
|
|
||||||
static int decode_write_frame(const char *outfilename, AVCodecContext *avctx,
|
|
||||||
AVFrame *frame, int *frame_count, AVPacket *pkt, int last)
|
|
||||||
{
|
|
||||||
int len, got_frame;
|
|
||||||
char buf[1024];
|
|
||||||
|
|
||||||
len = avcodec_decode_video2(avctx, frame, &got_frame, pkt);
|
|
||||||
if (len < 0) {
|
|
||||||
fprintf(stderr, "Error while decoding frame %d\n", *frame_count);
|
|
||||||
return len;
|
|
||||||
}
|
|
||||||
if (got_frame) {
|
|
||||||
printf("Saving %sframe %3d\n", last ? "last " : "", *frame_count);
|
|
||||||
fflush(stdout);
|
|
||||||
|
|
||||||
/* the picture is allocated by the decoder, no need to free it */
|
|
||||||
snprintf(buf, sizeof(buf), outfilename, *frame_count);
|
|
||||||
pgm_save(frame->data[0], frame->linesize[0],
|
|
||||||
avctx->width, avctx->height, buf);
|
|
||||||
(*frame_count)++;
|
|
||||||
}
|
|
||||||
if (pkt->data) {
|
|
||||||
pkt->size -= len;
|
|
||||||
pkt->data += len;
|
|
||||||
}
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
static void video_decode_example(const char *outfilename, const char *filename)
|
|
||||||
{
|
|
||||||
AVCodec *codec;
|
|
||||||
AVCodecContext *c= NULL;
|
|
||||||
int frame_count;
|
|
||||||
FILE *f;
|
|
||||||
AVFrame *frame;
|
|
||||||
uint8_t inbuf[INBUF_SIZE + FF_INPUT_BUFFER_PADDING_SIZE];
|
|
||||||
AVPacket avpkt;
|
|
||||||
|
|
||||||
av_init_packet(&avpkt);
|
|
||||||
|
|
||||||
/* set end of buffer to 0 (this ensures that no overreading happens for damaged mpeg streams) */
|
|
||||||
memset(inbuf + INBUF_SIZE, 0, FF_INPUT_BUFFER_PADDING_SIZE);
|
|
||||||
|
|
||||||
printf("Decode video file %s to %s\n", filename, outfilename);
|
|
||||||
|
|
||||||
/* find the mpeg1 video decoder */
|
|
||||||
codec = avcodec_find_decoder(AV_CODEC_ID_MPEG1VIDEO);
|
|
||||||
if (!codec) {
|
|
||||||
fprintf(stderr, "Codec not found\n");
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
c = avcodec_alloc_context3(codec);
|
|
||||||
if (!c) {
|
|
||||||
fprintf(stderr, "Could not allocate video codec context\n");
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
if(codec->capabilities&CODEC_CAP_TRUNCATED)
|
|
||||||
c->flags|= CODEC_FLAG_TRUNCATED; /* we do not send complete frames */
|
|
||||||
|
|
||||||
/* For some codecs, such as msmpeg4 and mpeg4, width and height
|
|
||||||
MUST be initialized there because this information is not
|
|
||||||
available in the bitstream. */
|
|
||||||
|
|
||||||
/* open it */
|
|
||||||
if (avcodec_open2(c, codec, NULL) < 0) {
|
|
||||||
fprintf(stderr, "Could not open codec\n");
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
f = fopen(filename, "rb");
|
|
||||||
if (!f) {
|
|
||||||
fprintf(stderr, "Could not open %s\n", filename);
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
frame = avcodec_alloc_frame();
|
|
||||||
if (!frame) {
|
|
||||||
fprintf(stderr, "Could not allocate video frame\n");
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
frame_count = 0;
|
|
||||||
for(;;) {
|
|
||||||
avpkt.size = fread(inbuf, 1, INBUF_SIZE, f);
|
|
||||||
if (avpkt.size == 0)
|
|
||||||
break;
|
|
||||||
|
|
||||||
/* NOTE1: some codecs are stream based (mpegvideo, mpegaudio)
|
|
||||||
and this is the only method to use them because you cannot
|
|
||||||
know the compressed data size before analysing it.
|
|
||||||
|
|
||||||
BUT some other codecs (msmpeg4, mpeg4) are inherently frame
|
|
||||||
based, so you must call them with all the data for one
|
|
||||||
frame exactly. You must also initialize 'width' and
|
|
||||||
'height' before initializing them. */
|
|
||||||
|
|
||||||
/* NOTE2: some codecs allow the raw parameters (frame size,
|
|
||||||
sample rate) to be changed at any frame. We handle this, so
|
|
||||||
you should also take care of it */
|
|
||||||
|
|
||||||
/* here, we use a stream based decoder (mpeg1video), so we
|
|
||||||
feed decoder and see if it could decode a frame */
|
|
||||||
avpkt.data = inbuf;
|
|
||||||
while (avpkt.size > 0)
|
|
||||||
if (decode_write_frame(outfilename, c, frame, &frame_count, &avpkt, 0) < 0)
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* some codecs, such as MPEG, transmit the I and P frame with a
|
|
||||||
latency of one frame. You must do the following to have a
|
|
||||||
chance to get the last frame of the video */
|
|
||||||
avpkt.data = NULL;
|
|
||||||
avpkt.size = 0;
|
|
||||||
decode_write_frame(outfilename, c, frame, &frame_count, &avpkt, 1);
|
|
||||||
|
|
||||||
fclose(f);
|
|
||||||
|
|
||||||
avcodec_close(c);
|
|
||||||
av_free(c);
|
|
||||||
avcodec_free_frame(&frame);
|
|
||||||
printf("\n");
|
|
||||||
}
|
|
||||||
|
|
||||||
int main(int argc, char **argv)
|
|
||||||
{
|
|
||||||
const char *output_type;
|
|
||||||
|
|
||||||
/* register all the codecs */
|
|
||||||
avcodec_register_all();
|
|
||||||
|
|
||||||
if (argc < 2) {
|
|
||||||
printf("usage: %s output_type\n"
|
|
||||||
"API example program to decode/encode a media stream with libavcodec.\n"
|
|
||||||
"This program generates a synthetic stream and encodes it to a file\n"
|
|
||||||
"named test.h264, test.mp2 or test.mpg depending on output_type.\n"
|
|
||||||
"The encoded stream is then decoded and written to a raw data output.\n"
|
|
||||||
"output_type must be choosen between 'h264', 'mp2', 'mpg'.\n",
|
|
||||||
argv[0]);
|
|
||||||
return 1;
|
|
||||||
}
|
|
||||||
output_type = argv[1];
|
|
||||||
|
|
||||||
if (!strcmp(output_type, "h264")) {
|
|
||||||
video_encode_example("test.h264", AV_CODEC_ID_H264);
|
|
||||||
} else if (!strcmp(output_type, "mp2")) {
|
|
||||||
audio_encode_example("test.mp2");
|
|
||||||
audio_decode_example("test.sw", "test.mp2");
|
|
||||||
} else if (!strcmp(output_type, "mpg")) {
|
|
||||||
video_encode_example("test.mpg", AV_CODEC_ID_MPEG1VIDEO);
|
|
||||||
video_decode_example("test%02d.pgm", "test.mpg");
|
|
||||||
} else {
|
|
||||||
fprintf(stderr, "Invalid output type '%s', choose between 'h264', 'mp2', or 'mpg'\n",
|
|
||||||
output_type);
|
|
||||||
return 1;
|
|
||||||
}
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
@@ -1,342 +0,0 @@
|
|||||||
/*
|
|
||||||
* Copyright (c) 2012 Stefano Sabatini
|
|
||||||
*
|
|
||||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
||||||
* of this software and associated documentation files (the "Software"), to deal
|
|
||||||
* in the Software without restriction, including without limitation the rights
|
|
||||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
||||||
* copies of the Software, and to permit persons to whom the Software is
|
|
||||||
* furnished to do so, subject to the following conditions:
|
|
||||||
*
|
|
||||||
* The above copyright notice and this permission notice shall be included in
|
|
||||||
* all copies or substantial portions of the Software.
|
|
||||||
*
|
|
||||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
||||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
||||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
||||||
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
||||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
||||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
||||||
* THE SOFTWARE.
|
|
||||||
*/
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @file
|
|
||||||
* libavformat demuxing API use example.
|
|
||||||
*
|
|
||||||
* Show how to use the libavformat and libavcodec API to demux and
|
|
||||||
* decode audio and video data.
|
|
||||||
* @example doc/examples/demuxing.c
|
|
||||||
*/
|
|
||||||
|
|
||||||
#include <libavutil/imgutils.h>
|
|
||||||
#include <libavutil/samplefmt.h>
|
|
||||||
#include <libavutil/timestamp.h>
|
|
||||||
#include <libavformat/avformat.h>
|
|
||||||
|
|
||||||
static AVFormatContext *fmt_ctx = NULL;
|
|
||||||
static AVCodecContext *video_dec_ctx = NULL, *audio_dec_ctx;
|
|
||||||
static AVStream *video_stream = NULL, *audio_stream = NULL;
|
|
||||||
static const char *src_filename = NULL;
|
|
||||||
static const char *video_dst_filename = NULL;
|
|
||||||
static const char *audio_dst_filename = NULL;
|
|
||||||
static FILE *video_dst_file = NULL;
|
|
||||||
static FILE *audio_dst_file = NULL;
|
|
||||||
|
|
||||||
static uint8_t *video_dst_data[4] = {NULL};
|
|
||||||
static int video_dst_linesize[4];
|
|
||||||
static int video_dst_bufsize;
|
|
||||||
|
|
||||||
static uint8_t **audio_dst_data = NULL;
|
|
||||||
static int audio_dst_linesize;
|
|
||||||
static int audio_dst_bufsize;
|
|
||||||
|
|
||||||
static int video_stream_idx = -1, audio_stream_idx = -1;
|
|
||||||
static AVFrame *frame = NULL;
|
|
||||||
static AVPacket pkt;
|
|
||||||
static int video_frame_count = 0;
|
|
||||||
static int audio_frame_count = 0;
|
|
||||||
|
|
||||||
static int decode_packet(int *got_frame, int cached)
|
|
||||||
{
|
|
||||||
int ret = 0;
|
|
||||||
|
|
||||||
if (pkt.stream_index == video_stream_idx) {
|
|
||||||
/* decode video frame */
|
|
||||||
ret = avcodec_decode_video2(video_dec_ctx, frame, got_frame, &pkt);
|
|
||||||
if (ret < 0) {
|
|
||||||
fprintf(stderr, "Error decoding video frame\n");
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (*got_frame) {
|
|
||||||
printf("video_frame%s n:%d coded_n:%d pts:%s\n",
|
|
||||||
cached ? "(cached)" : "",
|
|
||||||
video_frame_count++, frame->coded_picture_number,
|
|
||||||
av_ts2timestr(frame->pts, &video_dec_ctx->time_base));
|
|
||||||
|
|
||||||
/* copy decoded frame to destination buffer:
|
|
||||||
* this is required since rawvideo expects non aligned data */
|
|
||||||
av_image_copy(video_dst_data, video_dst_linesize,
|
|
||||||
(const uint8_t **)(frame->data), frame->linesize,
|
|
||||||
video_dec_ctx->pix_fmt, video_dec_ctx->width, video_dec_ctx->height);
|
|
||||||
|
|
||||||
/* write to rawvideo file */
|
|
||||||
fwrite(video_dst_data[0], 1, video_dst_bufsize, video_dst_file);
|
|
||||||
}
|
|
||||||
} else if (pkt.stream_index == audio_stream_idx) {
|
|
||||||
/* decode audio frame */
|
|
||||||
ret = avcodec_decode_audio4(audio_dec_ctx, frame, got_frame, &pkt);
|
|
||||||
if (ret < 0) {
|
|
||||||
fprintf(stderr, "Error decoding audio frame\n");
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (*got_frame) {
|
|
||||||
printf("audio_frame%s n:%d nb_samples:%d pts:%s\n",
|
|
||||||
cached ? "(cached)" : "",
|
|
||||||
audio_frame_count++, frame->nb_samples,
|
|
||||||
av_ts2timestr(frame->pts, &audio_dec_ctx->time_base));
|
|
||||||
|
|
||||||
ret = av_samples_alloc(audio_dst_data, &audio_dst_linesize, av_frame_get_channels(frame),
|
|
||||||
frame->nb_samples, frame->format, 1);
|
|
||||||
if (ret < 0) {
|
|
||||||
fprintf(stderr, "Could not allocate audio buffer\n");
|
|
||||||
return AVERROR(ENOMEM);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* TODO: extend return code of the av_samples_* functions so that this call is not needed */
|
|
||||||
audio_dst_bufsize =
|
|
||||||
av_samples_get_buffer_size(NULL, av_frame_get_channels(frame),
|
|
||||||
frame->nb_samples, frame->format, 1);
|
|
||||||
|
|
||||||
/* copy audio data to destination buffer:
|
|
||||||
* this is required since rawaudio expects non aligned data */
|
|
||||||
av_samples_copy(audio_dst_data, frame->data, 0, 0,
|
|
||||||
frame->nb_samples, av_frame_get_channels(frame), frame->format);
|
|
||||||
|
|
||||||
/* write to rawaudio file */
|
|
||||||
fwrite(audio_dst_data[0], 1, audio_dst_bufsize, audio_dst_file);
|
|
||||||
av_freep(&audio_dst_data[0]);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
static int open_codec_context(int *stream_idx,
|
|
||||||
AVFormatContext *fmt_ctx, enum AVMediaType type)
|
|
||||||
{
|
|
||||||
int ret;
|
|
||||||
AVStream *st;
|
|
||||||
AVCodecContext *dec_ctx = NULL;
|
|
||||||
AVCodec *dec = NULL;
|
|
||||||
|
|
||||||
ret = av_find_best_stream(fmt_ctx, type, -1, -1, NULL, 0);
|
|
||||||
if (ret < 0) {
|
|
||||||
fprintf(stderr, "Could not find %s stream in input file '%s'\n",
|
|
||||||
av_get_media_type_string(type), src_filename);
|
|
||||||
return ret;
|
|
||||||
} else {
|
|
||||||
*stream_idx = ret;
|
|
||||||
st = fmt_ctx->streams[*stream_idx];
|
|
||||||
|
|
||||||
/* find decoder for the stream */
|
|
||||||
dec_ctx = st->codec;
|
|
||||||
dec = avcodec_find_decoder(dec_ctx->codec_id);
|
|
||||||
if (!dec) {
|
|
||||||
fprintf(stderr, "Failed to find %s codec\n",
|
|
||||||
av_get_media_type_string(type));
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
if ((ret = avcodec_open2(dec_ctx, dec, NULL)) < 0) {
|
|
||||||
fprintf(stderr, "Failed to open %s codec\n",
|
|
||||||
av_get_media_type_string(type));
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
static int get_format_from_sample_fmt(const char **fmt,
|
|
||||||
enum AVSampleFormat sample_fmt)
|
|
||||||
{
|
|
||||||
int i;
|
|
||||||
struct sample_fmt_entry {
|
|
||||||
enum AVSampleFormat sample_fmt; const char *fmt_be, *fmt_le;
|
|
||||||
} sample_fmt_entries[] = {
|
|
||||||
{ AV_SAMPLE_FMT_U8, "u8", "u8" },
|
|
||||||
{ AV_SAMPLE_FMT_S16, "s16be", "s16le" },
|
|
||||||
{ AV_SAMPLE_FMT_S32, "s32be", "s32le" },
|
|
||||||
{ AV_SAMPLE_FMT_FLT, "f32be", "f32le" },
|
|
||||||
{ AV_SAMPLE_FMT_DBL, "f64be", "f64le" },
|
|
||||||
};
|
|
||||||
*fmt = NULL;
|
|
||||||
|
|
||||||
for (i = 0; i < FF_ARRAY_ELEMS(sample_fmt_entries); i++) {
|
|
||||||
struct sample_fmt_entry *entry = &sample_fmt_entries[i];
|
|
||||||
if (sample_fmt == entry->sample_fmt) {
|
|
||||||
*fmt = AV_NE(entry->fmt_be, entry->fmt_le);
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
fprintf(stderr,
|
|
||||||
"sample format %s is not supported as output format\n",
|
|
||||||
av_get_sample_fmt_name(sample_fmt));
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
|
|
||||||
int main (int argc, char **argv)
|
|
||||||
{
|
|
||||||
int ret = 0, got_frame;
|
|
||||||
|
|
||||||
if (argc != 4) {
|
|
||||||
fprintf(stderr, "usage: %s input_file video_output_file audio_output_file\n"
|
|
||||||
"API example program to show how to read frames from an input file.\n"
|
|
||||||
"This program reads frames from a file, decodes them, and writes decoded\n"
|
|
||||||
"video frames to a rawvideo file named video_output_file, and decoded\n"
|
|
||||||
"audio frames to a rawaudio file named audio_output_file.\n"
|
|
||||||
"\n", argv[0]);
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
src_filename = argv[1];
|
|
||||||
video_dst_filename = argv[2];
|
|
||||||
audio_dst_filename = argv[3];
|
|
||||||
|
|
||||||
/* register all formats and codecs */
|
|
||||||
av_register_all();
|
|
||||||
|
|
||||||
/* open input file, and allocate format context */
|
|
||||||
if (avformat_open_input(&fmt_ctx, src_filename, NULL, NULL) < 0) {
|
|
||||||
fprintf(stderr, "Could not open source file %s\n", src_filename);
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* retrieve stream information */
|
|
||||||
if (avformat_find_stream_info(fmt_ctx, NULL) < 0) {
|
|
||||||
fprintf(stderr, "Could not find stream information\n");
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
if (open_codec_context(&video_stream_idx, fmt_ctx, AVMEDIA_TYPE_VIDEO) >= 0) {
|
|
||||||
video_stream = fmt_ctx->streams[video_stream_idx];
|
|
||||||
video_dec_ctx = video_stream->codec;
|
|
||||||
|
|
||||||
video_dst_file = fopen(video_dst_filename, "wb");
|
|
||||||
if (!video_dst_file) {
|
|
||||||
fprintf(stderr, "Could not open destination file %s\n", video_dst_filename);
|
|
||||||
ret = 1;
|
|
||||||
goto end;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* allocate image where the decoded image will be put */
|
|
||||||
ret = av_image_alloc(video_dst_data, video_dst_linesize,
|
|
||||||
video_dec_ctx->width, video_dec_ctx->height,
|
|
||||||
video_dec_ctx->pix_fmt, 1);
|
|
||||||
if (ret < 0) {
|
|
||||||
fprintf(stderr, "Could not allocate raw video buffer\n");
|
|
||||||
goto end;
|
|
||||||
}
|
|
||||||
video_dst_bufsize = ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (open_codec_context(&audio_stream_idx, fmt_ctx, AVMEDIA_TYPE_AUDIO) >= 0) {
|
|
||||||
int nb_planes;
|
|
||||||
|
|
||||||
audio_stream = fmt_ctx->streams[audio_stream_idx];
|
|
||||||
audio_dec_ctx = audio_stream->codec;
|
|
||||||
audio_dst_file = fopen(audio_dst_filename, "wb");
|
|
||||||
if (!audio_dst_file) {
|
|
||||||
fprintf(stderr, "Could not open destination file %s\n", video_dst_filename);
|
|
||||||
ret = 1;
|
|
||||||
goto end;
|
|
||||||
}
|
|
||||||
|
|
||||||
nb_planes = av_sample_fmt_is_planar(audio_dec_ctx->sample_fmt) ?
|
|
||||||
audio_dec_ctx->channels : 1;
|
|
||||||
audio_dst_data = av_mallocz(sizeof(uint8_t *) * nb_planes);
|
|
||||||
if (!audio_dst_data) {
|
|
||||||
fprintf(stderr, "Could not allocate audio data buffers\n");
|
|
||||||
ret = AVERROR(ENOMEM);
|
|
||||||
goto end;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/* dump input information to stderr */
|
|
||||||
av_dump_format(fmt_ctx, 0, src_filename, 0);
|
|
||||||
|
|
||||||
if (!audio_stream && !video_stream) {
|
|
||||||
fprintf(stderr, "Could not find audio or video stream in the input, aborting\n");
|
|
||||||
ret = 1;
|
|
||||||
goto end;
|
|
||||||
}
|
|
||||||
|
|
||||||
frame = avcodec_alloc_frame();
|
|
||||||
if (!frame) {
|
|
||||||
fprintf(stderr, "Could not allocate frame\n");
|
|
||||||
ret = AVERROR(ENOMEM);
|
|
||||||
goto end;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* initialize packet, set data to NULL, let the demuxer fill it */
|
|
||||||
av_init_packet(&pkt);
|
|
||||||
pkt.data = NULL;
|
|
||||||
pkt.size = 0;
|
|
||||||
|
|
||||||
if (video_stream)
|
|
||||||
printf("Demuxing video from file '%s' into '%s'\n", src_filename, video_dst_filename);
|
|
||||||
if (audio_stream)
|
|
||||||
printf("Demuxing audio from file '%s' into '%s'\n", src_filename, audio_dst_filename);
|
|
||||||
|
|
||||||
/* read frames from the file */
|
|
||||||
while (av_read_frame(fmt_ctx, &pkt) >= 0) {
|
|
||||||
decode_packet(&got_frame, 0);
|
|
||||||
av_free_packet(&pkt);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* flush cached frames */
|
|
||||||
pkt.data = NULL;
|
|
||||||
pkt.size = 0;
|
|
||||||
do {
|
|
||||||
decode_packet(&got_frame, 1);
|
|
||||||
} while (got_frame);
|
|
||||||
|
|
||||||
printf("Demuxing succeeded.\n");
|
|
||||||
|
|
||||||
if (video_stream) {
|
|
||||||
printf("Play the output video file with the command:\n"
|
|
||||||
"ffplay -f rawvideo -pix_fmt %s -video_size %dx%d %s\n",
|
|
||||||
av_get_pix_fmt_name(video_dec_ctx->pix_fmt), video_dec_ctx->width, video_dec_ctx->height,
|
|
||||||
video_dst_filename);
|
|
||||||
}
|
|
||||||
|
|
||||||
if (audio_stream) {
|
|
||||||
const char *fmt;
|
|
||||||
|
|
||||||
if ((ret = get_format_from_sample_fmt(&fmt, audio_dec_ctx->sample_fmt)) < 0)
|
|
||||||
goto end;
|
|
||||||
printf("Play the output audio file with the command:\n"
|
|
||||||
"ffplay -f %s -ac %d -ar %d %s\n",
|
|
||||||
fmt, audio_dec_ctx->channels, audio_dec_ctx->sample_rate,
|
|
||||||
audio_dst_filename);
|
|
||||||
}
|
|
||||||
|
|
||||||
end:
|
|
||||||
if (video_dec_ctx)
|
|
||||||
avcodec_close(video_dec_ctx);
|
|
||||||
if (audio_dec_ctx)
|
|
||||||
avcodec_close(audio_dec_ctx);
|
|
||||||
avformat_close_input(&fmt_ctx);
|
|
||||||
if (video_dst_file)
|
|
||||||
fclose(video_dst_file);
|
|
||||||
if (audio_dst_file)
|
|
||||||
fclose(audio_dst_file);
|
|
||||||
av_free(frame);
|
|
||||||
av_free(video_dst_data[0]);
|
|
||||||
av_free(audio_dst_data);
|
|
||||||
|
|
||||||
return ret < 0;
|
|
||||||
}
|
|
||||||
@@ -1,265 +0,0 @@
|
|||||||
/*
|
|
||||||
* Copyright (c) 2010 Nicolas George
|
|
||||||
* Copyright (c) 2011 Stefano Sabatini
|
|
||||||
* Copyright (c) 2012 Clément Bœsch
|
|
||||||
*
|
|
||||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
||||||
* of this software and associated documentation files (the "Software"), to deal
|
|
||||||
* in the Software without restriction, including without limitation the rights
|
|
||||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
||||||
* copies of the Software, and to permit persons to whom the Software is
|
|
||||||
* furnished to do so, subject to the following conditions:
|
|
||||||
*
|
|
||||||
* The above copyright notice and this permission notice shall be included in
|
|
||||||
* all copies or substantial portions of the Software.
|
|
||||||
*
|
|
||||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
||||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
||||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
||||||
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
||||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
||||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
||||||
* THE SOFTWARE.
|
|
||||||
*/
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @file
|
|
||||||
* API example for audio decoding and filtering
|
|
||||||
* @example doc/examples/filtering_audio.c
|
|
||||||
*/
|
|
||||||
|
|
||||||
#include <unistd.h>
|
|
||||||
|
|
||||||
#include <libavcodec/avcodec.h>
|
|
||||||
#include <libavformat/avformat.h>
|
|
||||||
#include <libavfilter/avfiltergraph.h>
|
|
||||||
#include <libavfilter/avcodec.h>
|
|
||||||
#include <libavfilter/buffersink.h>
|
|
||||||
#include <libavfilter/buffersrc.h>
|
|
||||||
#include <libavutil/opt.h>
|
|
||||||
|
|
||||||
const char *filter_descr = "aresample=8000,aformat=sample_fmts=s16:channel_layouts=mono";
|
|
||||||
const char *player = "ffplay -f s16le -ar 8000 -ac 1 -";
|
|
||||||
|
|
||||||
static AVFormatContext *fmt_ctx;
|
|
||||||
static AVCodecContext *dec_ctx;
|
|
||||||
AVFilterContext *buffersink_ctx;
|
|
||||||
AVFilterContext *buffersrc_ctx;
|
|
||||||
AVFilterGraph *filter_graph;
|
|
||||||
static int audio_stream_index = -1;
|
|
||||||
|
|
||||||
static int open_input_file(const char *filename)
|
|
||||||
{
|
|
||||||
int ret;
|
|
||||||
AVCodec *dec;
|
|
||||||
|
|
||||||
if ((ret = avformat_open_input(&fmt_ctx, filename, NULL, NULL)) < 0) {
|
|
||||||
av_log(NULL, AV_LOG_ERROR, "Cannot open input file\n");
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
if ((ret = avformat_find_stream_info(fmt_ctx, NULL)) < 0) {
|
|
||||||
av_log(NULL, AV_LOG_ERROR, "Cannot find stream information\n");
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* select the audio stream */
|
|
||||||
ret = av_find_best_stream(fmt_ctx, AVMEDIA_TYPE_AUDIO, -1, -1, &dec, 0);
|
|
||||||
if (ret < 0) {
|
|
||||||
av_log(NULL, AV_LOG_ERROR, "Cannot find a audio stream in the input file\n");
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
audio_stream_index = ret;
|
|
||||||
dec_ctx = fmt_ctx->streams[audio_stream_index]->codec;
|
|
||||||
av_opt_set_int(dec_ctx, "refcounted_frames", 1, 0);
|
|
||||||
|
|
||||||
/* init the audio decoder */
|
|
||||||
if ((ret = avcodec_open2(dec_ctx, dec, NULL)) < 0) {
|
|
||||||
av_log(NULL, AV_LOG_ERROR, "Cannot open audio decoder\n");
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
static int init_filters(const char *filters_descr)
|
|
||||||
{
|
|
||||||
char args[512];
|
|
||||||
int ret;
|
|
||||||
AVFilter *abuffersrc = avfilter_get_by_name("abuffer");
|
|
||||||
AVFilter *abuffersink = avfilter_get_by_name("abuffersink");
|
|
||||||
AVFilterInOut *outputs = avfilter_inout_alloc();
|
|
||||||
AVFilterInOut *inputs = avfilter_inout_alloc();
|
|
||||||
const enum AVSampleFormat out_sample_fmts[] = { AV_SAMPLE_FMT_S16, -1 };
|
|
||||||
const int64_t out_channel_layouts[] = { AV_CH_LAYOUT_MONO, -1 };
|
|
||||||
const int out_sample_rates[] = { 8000, -1 };
|
|
||||||
const AVFilterLink *outlink;
|
|
||||||
AVRational time_base = fmt_ctx->streams[audio_stream_index]->time_base;
|
|
||||||
|
|
||||||
filter_graph = avfilter_graph_alloc();
|
|
||||||
|
|
||||||
/* buffer audio source: the decoded frames from the decoder will be inserted here. */
|
|
||||||
if (!dec_ctx->channel_layout)
|
|
||||||
dec_ctx->channel_layout = av_get_default_channel_layout(dec_ctx->channels);
|
|
||||||
snprintf(args, sizeof(args),
|
|
||||||
"time_base=%d/%d:sample_rate=%d:sample_fmt=%s:channel_layout=0x%"PRIx64,
|
|
||||||
time_base.num, time_base.den, dec_ctx->sample_rate,
|
|
||||||
av_get_sample_fmt_name(dec_ctx->sample_fmt), dec_ctx->channel_layout);
|
|
||||||
ret = avfilter_graph_create_filter(&buffersrc_ctx, abuffersrc, "in",
|
|
||||||
args, NULL, filter_graph);
|
|
||||||
if (ret < 0) {
|
|
||||||
av_log(NULL, AV_LOG_ERROR, "Cannot create audio buffer source\n");
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* buffer audio sink: to terminate the filter chain. */
|
|
||||||
ret = avfilter_graph_create_filter(&buffersink_ctx, abuffersink, "out",
|
|
||||||
NULL, NULL, filter_graph);
|
|
||||||
if (ret < 0) {
|
|
||||||
av_log(NULL, AV_LOG_ERROR, "Cannot create audio buffer sink\n");
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
ret = av_opt_set_int_list(buffersink_ctx, "sample_fmts", out_sample_fmts, -1,
|
|
||||||
AV_OPT_SEARCH_CHILDREN);
|
|
||||||
if (ret < 0) {
|
|
||||||
av_log(NULL, AV_LOG_ERROR, "Cannot set output sample format\n");
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
ret = av_opt_set_int_list(buffersink_ctx, "channel_layouts", out_channel_layouts, -1,
|
|
||||||
AV_OPT_SEARCH_CHILDREN);
|
|
||||||
if (ret < 0) {
|
|
||||||
av_log(NULL, AV_LOG_ERROR, "Cannot set output channel layout\n");
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
ret = av_opt_set_int_list(buffersink_ctx, "sample_rates", out_sample_rates, -1,
|
|
||||||
AV_OPT_SEARCH_CHILDREN);
|
|
||||||
if (ret < 0) {
|
|
||||||
av_log(NULL, AV_LOG_ERROR, "Cannot set output sample rate\n");
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Endpoints for the filter graph. */
|
|
||||||
outputs->name = av_strdup("in");
|
|
||||||
outputs->filter_ctx = buffersrc_ctx;
|
|
||||||
outputs->pad_idx = 0;
|
|
||||||
outputs->next = NULL;
|
|
||||||
|
|
||||||
inputs->name = av_strdup("out");
|
|
||||||
inputs->filter_ctx = buffersink_ctx;
|
|
||||||
inputs->pad_idx = 0;
|
|
||||||
inputs->next = NULL;
|
|
||||||
|
|
||||||
if ((ret = avfilter_graph_parse_ptr(filter_graph, filters_descr,
|
|
||||||
&inputs, &outputs, NULL)) < 0)
|
|
||||||
return ret;
|
|
||||||
|
|
||||||
if ((ret = avfilter_graph_config(filter_graph, NULL)) < 0)
|
|
||||||
return ret;
|
|
||||||
|
|
||||||
/* Print summary of the sink buffer
|
|
||||||
* Note: args buffer is reused to store channel layout string */
|
|
||||||
outlink = buffersink_ctx->inputs[0];
|
|
||||||
av_get_channel_layout_string(args, sizeof(args), -1, outlink->channel_layout);
|
|
||||||
av_log(NULL, AV_LOG_INFO, "Output: srate:%dHz fmt:%s chlayout:%s\n",
|
|
||||||
(int)outlink->sample_rate,
|
|
||||||
(char *)av_x_if_null(av_get_sample_fmt_name(outlink->format), "?"),
|
|
||||||
args);
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
static void print_frame(const AVFrame *frame)
|
|
||||||
{
|
|
||||||
const int n = frame->nb_samples * av_get_channel_layout_nb_channels(av_frame_get_channel_layout(frame));
|
|
||||||
const uint16_t *p = (uint16_t*)frame->data[0];
|
|
||||||
const uint16_t *p_end = p + n;
|
|
||||||
|
|
||||||
while (p < p_end) {
|
|
||||||
fputc(*p & 0xff, stdout);
|
|
||||||
fputc(*p>>8 & 0xff, stdout);
|
|
||||||
p++;
|
|
||||||
}
|
|
||||||
fflush(stdout);
|
|
||||||
}
|
|
||||||
|
|
||||||
int main(int argc, char **argv)
|
|
||||||
{
|
|
||||||
int ret;
|
|
||||||
AVPacket packet;
|
|
||||||
AVFrame *frame = av_frame_alloc();
|
|
||||||
AVFrame *filt_frame = av_frame_alloc();
|
|
||||||
int got_frame;
|
|
||||||
|
|
||||||
if (!frame || !filt_frame) {
|
|
||||||
perror("Could not allocate frame");
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
if (argc != 2) {
|
|
||||||
fprintf(stderr, "Usage: %s file | %s\n", argv[0], player);
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
avcodec_register_all();
|
|
||||||
av_register_all();
|
|
||||||
avfilter_register_all();
|
|
||||||
|
|
||||||
if ((ret = open_input_file(argv[1])) < 0)
|
|
||||||
goto end;
|
|
||||||
if ((ret = init_filters(filter_descr)) < 0)
|
|
||||||
goto end;
|
|
||||||
|
|
||||||
/* read all packets */
|
|
||||||
while (1) {
|
|
||||||
if ((ret = av_read_frame(fmt_ctx, &packet)) < 0)
|
|
||||||
break;
|
|
||||||
|
|
||||||
if (packet.stream_index == audio_stream_index) {
|
|
||||||
avcodec_get_frame_defaults(frame);
|
|
||||||
got_frame = 0;
|
|
||||||
ret = avcodec_decode_audio4(dec_ctx, frame, &got_frame, &packet);
|
|
||||||
if (ret < 0) {
|
|
||||||
av_log(NULL, AV_LOG_ERROR, "Error decoding audio\n");
|
|
||||||
continue;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (got_frame) {
|
|
||||||
/* push the audio data from decoded frame into the filtergraph */
|
|
||||||
if (av_buffersrc_add_frame_flags(buffersrc_ctx, frame, 0) < 0) {
|
|
||||||
av_log(NULL, AV_LOG_ERROR, "Error while feeding the audio filtergraph\n");
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* pull filtered audio from the filtergraph */
|
|
||||||
while (1) {
|
|
||||||
ret = av_buffersink_get_frame(buffersink_ctx, filt_frame);
|
|
||||||
if(ret == AVERROR(EAGAIN) || ret == AVERROR_EOF)
|
|
||||||
break;
|
|
||||||
if(ret < 0)
|
|
||||||
goto end;
|
|
||||||
print_frame(filt_frame);
|
|
||||||
av_frame_unref(filt_frame);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
av_free_packet(&packet);
|
|
||||||
}
|
|
||||||
end:
|
|
||||||
avfilter_graph_free(&filter_graph);
|
|
||||||
if (dec_ctx)
|
|
||||||
avcodec_close(dec_ctx);
|
|
||||||
avformat_close_input(&fmt_ctx);
|
|
||||||
av_frame_free(&frame);
|
|
||||||
av_frame_free(&filt_frame);
|
|
||||||
|
|
||||||
if (ret < 0 && ret != AVERROR_EOF) {
|
|
||||||
char buf[1024];
|
|
||||||
av_strerror(ret, buf, sizeof(buf));
|
|
||||||
fprintf(stderr, "Error occurred: %s\n", buf);
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
exit(0);
|
|
||||||
}
|
|
||||||
@@ -1,251 +0,0 @@
|
|||||||
/*
|
|
||||||
* Copyright (c) 2010 Nicolas George
|
|
||||||
* Copyright (c) 2011 Stefano Sabatini
|
|
||||||
*
|
|
||||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
||||||
* of this software and associated documentation files (the "Software"), to deal
|
|
||||||
* in the Software without restriction, including without limitation the rights
|
|
||||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
||||||
* copies of the Software, and to permit persons to whom the Software is
|
|
||||||
* furnished to do so, subject to the following conditions:
|
|
||||||
*
|
|
||||||
* The above copyright notice and this permission notice shall be included in
|
|
||||||
* all copies or substantial portions of the Software.
|
|
||||||
*
|
|
||||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
||||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
||||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
||||||
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
||||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
||||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
||||||
* THE SOFTWARE.
|
|
||||||
*/
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @file
|
|
||||||
* API example for decoding and filtering
|
|
||||||
* @example doc/examples/filtering_video.c
|
|
||||||
*/
|
|
||||||
|
|
||||||
#define _XOPEN_SOURCE 600 /* for usleep */
|
|
||||||
#include <unistd.h>
|
|
||||||
|
|
||||||
#include <libavcodec/avcodec.h>
|
|
||||||
#include <libavformat/avformat.h>
|
|
||||||
#include <libavfilter/avfiltergraph.h>
|
|
||||||
#include <libavfilter/avcodec.h>
|
|
||||||
#include <libavfilter/buffersink.h>
|
|
||||||
#include <libavfilter/buffersrc.h>
|
|
||||||
|
|
||||||
const char *filter_descr = "scale=78:24";
|
|
||||||
|
|
||||||
static AVFormatContext *fmt_ctx;
|
|
||||||
static AVCodecContext *dec_ctx;
|
|
||||||
AVFilterContext *buffersink_ctx;
|
|
||||||
AVFilterContext *buffersrc_ctx;
|
|
||||||
AVFilterGraph *filter_graph;
|
|
||||||
static int video_stream_index = -1;
|
|
||||||
static int64_t last_pts = AV_NOPTS_VALUE;
|
|
||||||
|
|
||||||
static int open_input_file(const char *filename)
|
|
||||||
{
|
|
||||||
int ret;
|
|
||||||
AVCodec *dec;
|
|
||||||
|
|
||||||
if ((ret = avformat_open_input(&fmt_ctx, filename, NULL, NULL)) < 0) {
|
|
||||||
av_log(NULL, AV_LOG_ERROR, "Cannot open input file\n");
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
if ((ret = avformat_find_stream_info(fmt_ctx, NULL)) < 0) {
|
|
||||||
av_log(NULL, AV_LOG_ERROR, "Cannot find stream information\n");
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* select the video stream */
|
|
||||||
ret = av_find_best_stream(fmt_ctx, AVMEDIA_TYPE_VIDEO, -1, -1, &dec, 0);
|
|
||||||
if (ret < 0) {
|
|
||||||
av_log(NULL, AV_LOG_ERROR, "Cannot find a video stream in the input file\n");
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
video_stream_index = ret;
|
|
||||||
dec_ctx = fmt_ctx->streams[video_stream_index]->codec;
|
|
||||||
|
|
||||||
/* init the video decoder */
|
|
||||||
if ((ret = avcodec_open2(dec_ctx, dec, NULL)) < 0) {
|
|
||||||
av_log(NULL, AV_LOG_ERROR, "Cannot open video decoder\n");
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
static int init_filters(const char *filters_descr)
|
|
||||||
{
|
|
||||||
char args[512];
|
|
||||||
int ret;
|
|
||||||
AVFilter *buffersrc = avfilter_get_by_name("buffer");
|
|
||||||
AVFilter *buffersink = avfilter_get_by_name("buffersink");
|
|
||||||
AVFilterInOut *outputs = avfilter_inout_alloc();
|
|
||||||
AVFilterInOut *inputs = avfilter_inout_alloc();
|
|
||||||
enum AVPixelFormat pix_fmts[] = { AV_PIX_FMT_GRAY8, AV_PIX_FMT_NONE };
|
|
||||||
AVBufferSinkParams *buffersink_params;
|
|
||||||
|
|
||||||
filter_graph = avfilter_graph_alloc();
|
|
||||||
|
|
||||||
/* buffer video source: the decoded frames from the decoder will be inserted here. */
|
|
||||||
snprintf(args, sizeof(args),
|
|
||||||
"video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:pixel_aspect=%d/%d",
|
|
||||||
dec_ctx->width, dec_ctx->height, dec_ctx->pix_fmt,
|
|
||||||
dec_ctx->time_base.num, dec_ctx->time_base.den,
|
|
||||||
dec_ctx->sample_aspect_ratio.num, dec_ctx->sample_aspect_ratio.den);
|
|
||||||
|
|
||||||
ret = avfilter_graph_create_filter(&buffersrc_ctx, buffersrc, "in",
|
|
||||||
args, NULL, filter_graph);
|
|
||||||
if (ret < 0) {
|
|
||||||
av_log(NULL, AV_LOG_ERROR, "Cannot create buffer source\n");
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* buffer video sink: to terminate the filter chain. */
|
|
||||||
buffersink_params = av_buffersink_params_alloc();
|
|
||||||
buffersink_params->pixel_fmts = pix_fmts;
|
|
||||||
ret = avfilter_graph_create_filter(&buffersink_ctx, buffersink, "out",
|
|
||||||
NULL, buffersink_params, filter_graph);
|
|
||||||
av_free(buffersink_params);
|
|
||||||
if (ret < 0) {
|
|
||||||
av_log(NULL, AV_LOG_ERROR, "Cannot create buffer sink\n");
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Endpoints for the filter graph. */
|
|
||||||
outputs->name = av_strdup("in");
|
|
||||||
outputs->filter_ctx = buffersrc_ctx;
|
|
||||||
outputs->pad_idx = 0;
|
|
||||||
outputs->next = NULL;
|
|
||||||
|
|
||||||
inputs->name = av_strdup("out");
|
|
||||||
inputs->filter_ctx = buffersink_ctx;
|
|
||||||
inputs->pad_idx = 0;
|
|
||||||
inputs->next = NULL;
|
|
||||||
|
|
||||||
if ((ret = avfilter_graph_parse_ptr(filter_graph, filters_descr,
|
|
||||||
&inputs, &outputs, NULL)) < 0)
|
|
||||||
return ret;
|
|
||||||
|
|
||||||
if ((ret = avfilter_graph_config(filter_graph, NULL)) < 0)
|
|
||||||
return ret;
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
static void display_frame(const AVFrame *frame, AVRational time_base)
|
|
||||||
{
|
|
||||||
int x, y;
|
|
||||||
uint8_t *p0, *p;
|
|
||||||
int64_t delay;
|
|
||||||
|
|
||||||
if (frame->pts != AV_NOPTS_VALUE) {
|
|
||||||
if (last_pts != AV_NOPTS_VALUE) {
|
|
||||||
/* sleep roughly the right amount of time;
|
|
||||||
* usleep is in microseconds, just like AV_TIME_BASE. */
|
|
||||||
delay = av_rescale_q(frame->pts - last_pts,
|
|
||||||
time_base, AV_TIME_BASE_Q);
|
|
||||||
if (delay > 0 && delay < 1000000)
|
|
||||||
usleep(delay);
|
|
||||||
}
|
|
||||||
last_pts = frame->pts;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Trivial ASCII grayscale display. */
|
|
||||||
p0 = frame->data[0];
|
|
||||||
puts("\033c");
|
|
||||||
for (y = 0; y < frame->height; y++) {
|
|
||||||
p = p0;
|
|
||||||
for (x = 0; x < frame->width; x++)
|
|
||||||
putchar(" .-+#"[*(p++) / 52]);
|
|
||||||
putchar('\n');
|
|
||||||
p0 += frame->linesize[0];
|
|
||||||
}
|
|
||||||
fflush(stdout);
|
|
||||||
}
|
|
||||||
|
|
||||||
int main(int argc, char **argv)
|
|
||||||
{
|
|
||||||
int ret;
|
|
||||||
AVPacket packet;
|
|
||||||
AVFrame *frame = av_frame_alloc();
|
|
||||||
AVFrame *filt_frame = av_frame_alloc();
|
|
||||||
int got_frame;
|
|
||||||
|
|
||||||
if (!frame || !filt_frame) {
|
|
||||||
perror("Could not allocate frame");
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
if (argc != 2) {
|
|
||||||
fprintf(stderr, "Usage: %s file\n", argv[0]);
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
avcodec_register_all();
|
|
||||||
av_register_all();
|
|
||||||
avfilter_register_all();
|
|
||||||
|
|
||||||
if ((ret = open_input_file(argv[1])) < 0)
|
|
||||||
goto end;
|
|
||||||
if ((ret = init_filters(filter_descr)) < 0)
|
|
||||||
goto end;
|
|
||||||
|
|
||||||
/* read all packets */
|
|
||||||
while (1) {
|
|
||||||
if ((ret = av_read_frame(fmt_ctx, &packet)) < 0)
|
|
||||||
break;
|
|
||||||
|
|
||||||
if (packet.stream_index == video_stream_index) {
|
|
||||||
avcodec_get_frame_defaults(frame);
|
|
||||||
got_frame = 0;
|
|
||||||
ret = avcodec_decode_video2(dec_ctx, frame, &got_frame, &packet);
|
|
||||||
if (ret < 0) {
|
|
||||||
av_log(NULL, AV_LOG_ERROR, "Error decoding video\n");
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (got_frame) {
|
|
||||||
frame->pts = av_frame_get_best_effort_timestamp(frame);
|
|
||||||
|
|
||||||
/* push the decoded frame into the filtergraph */
|
|
||||||
if (av_buffersrc_add_frame_flags(buffersrc_ctx, frame, AV_BUFFERSRC_FLAG_KEEP_REF) < 0) {
|
|
||||||
av_log(NULL, AV_LOG_ERROR, "Error while feeding the filtergraph\n");
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* pull filtered frames from the filtergraph */
|
|
||||||
while (1) {
|
|
||||||
ret = av_buffersink_get_frame(buffersink_ctx, filt_frame);
|
|
||||||
if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF)
|
|
||||||
break;
|
|
||||||
if (ret < 0)
|
|
||||||
goto end;
|
|
||||||
display_frame(filt_frame, buffersink_ctx->inputs[0]->time_base);
|
|
||||||
av_frame_unref(filt_frame);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
av_free_packet(&packet);
|
|
||||||
}
|
|
||||||
end:
|
|
||||||
avfilter_graph_free(&filter_graph);
|
|
||||||
if (dec_ctx)
|
|
||||||
avcodec_close(dec_ctx);
|
|
||||||
avformat_close_input(&fmt_ctx);
|
|
||||||
av_frame_free(&frame);
|
|
||||||
av_frame_free(&filt_frame);
|
|
||||||
|
|
||||||
if (ret < 0 && ret != AVERROR_EOF) {
|
|
||||||
char buf[1024];
|
|
||||||
av_strerror(ret, buf, sizeof(buf));
|
|
||||||
fprintf(stderr, "Error occurred: %s\n", buf);
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
exit(0);
|
|
||||||
}
|
|
||||||
@@ -1,56 +0,0 @@
|
|||||||
/*
|
|
||||||
* Copyright (c) 2011 Reinhard Tartler
|
|
||||||
*
|
|
||||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
||||||
* of this software and associated documentation files (the "Software"), to deal
|
|
||||||
* in the Software without restriction, including without limitation the rights
|
|
||||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
||||||
* copies of the Software, and to permit persons to whom the Software is
|
|
||||||
* furnished to do so, subject to the following conditions:
|
|
||||||
*
|
|
||||||
* The above copyright notice and this permission notice shall be included in
|
|
||||||
* all copies or substantial portions of the Software.
|
|
||||||
*
|
|
||||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
||||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
||||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
||||||
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
||||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
||||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
||||||
* THE SOFTWARE.
|
|
||||||
*/
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @file
|
|
||||||
* Shows how the metadata API can be used in application programs.
|
|
||||||
* @example doc/examples/metadata.c
|
|
||||||
*/
|
|
||||||
|
|
||||||
#include <stdio.h>
|
|
||||||
|
|
||||||
#include <libavformat/avformat.h>
|
|
||||||
#include <libavutil/dict.h>
|
|
||||||
|
|
||||||
int main (int argc, char **argv)
|
|
||||||
{
|
|
||||||
AVFormatContext *fmt_ctx = NULL;
|
|
||||||
AVDictionaryEntry *tag = NULL;
|
|
||||||
int ret;
|
|
||||||
|
|
||||||
if (argc != 2) {
|
|
||||||
printf("usage: %s <input_file>\n"
|
|
||||||
"example program to demonstrate the use of the libavformat metadata API.\n"
|
|
||||||
"\n", argv[0]);
|
|
||||||
return 1;
|
|
||||||
}
|
|
||||||
|
|
||||||
av_register_all();
|
|
||||||
if ((ret = avformat_open_input(&fmt_ctx, argv[1], NULL, NULL)))
|
|
||||||
return ret;
|
|
||||||
|
|
||||||
while ((tag = av_dict_get(fmt_ctx->metadata, "", tag, AV_DICT_IGNORE_SUFFIX)))
|
|
||||||
printf("%s=%s\n", tag->key, tag->value);
|
|
||||||
|
|
||||||
avformat_close_input(&fmt_ctx);
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
@@ -1,564 +0,0 @@
|
|||||||
/*
|
|
||||||
* Copyright (c) 2003 Fabrice Bellard
|
|
||||||
*
|
|
||||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
||||||
* of this software and associated documentation files (the "Software"), to deal
|
|
||||||
* in the Software without restriction, including without limitation the rights
|
|
||||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
||||||
* copies of the Software, and to permit persons to whom the Software is
|
|
||||||
* furnished to do so, subject to the following conditions:
|
|
||||||
*
|
|
||||||
* The above copyright notice and this permission notice shall be included in
|
|
||||||
* all copies or substantial portions of the Software.
|
|
||||||
*
|
|
||||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
||||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
||||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
||||||
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
||||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
||||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
||||||
* THE SOFTWARE.
|
|
||||||
*/
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @file
|
|
||||||
* libavformat API example.
|
|
||||||
*
|
|
||||||
* Output a media file in any supported libavformat format.
|
|
||||||
* The default codecs are used.
|
|
||||||
* @example doc/examples/muxing.c
|
|
||||||
*/
|
|
||||||
|
|
||||||
#include <stdlib.h>
|
|
||||||
#include <stdio.h>
|
|
||||||
#include <string.h>
|
|
||||||
#include <math.h>
|
|
||||||
|
|
||||||
#include <libavutil/opt.h>
|
|
||||||
#include <libavutil/mathematics.h>
|
|
||||||
#include <libavformat/avformat.h>
|
|
||||||
#include <libswscale/swscale.h>
|
|
||||||
#include <libswresample/swresample.h>
|
|
||||||
|
|
||||||
/* 5 seconds stream duration */
|
|
||||||
#define STREAM_DURATION 200.0
|
|
||||||
#define STREAM_FRAME_RATE 25 /* 25 images/s */
|
|
||||||
#define STREAM_NB_FRAMES ((int)(STREAM_DURATION * STREAM_FRAME_RATE))
|
|
||||||
#define STREAM_PIX_FMT AV_PIX_FMT_YUV420P /* default pix_fmt */
|
|
||||||
|
|
||||||
static int sws_flags = SWS_BICUBIC;
|
|
||||||
|
|
||||||
/* Add an output stream. */
|
|
||||||
static AVStream *add_stream(AVFormatContext *oc, AVCodec **codec,
|
|
||||||
enum AVCodecID codec_id)
|
|
||||||
{
|
|
||||||
AVCodecContext *c;
|
|
||||||
AVStream *st;
|
|
||||||
|
|
||||||
/* find the encoder */
|
|
||||||
*codec = avcodec_find_encoder(codec_id);
|
|
||||||
if (!(*codec)) {
|
|
||||||
fprintf(stderr, "Could not find encoder for '%s'\n",
|
|
||||||
avcodec_get_name(codec_id));
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
st = avformat_new_stream(oc, *codec);
|
|
||||||
if (!st) {
|
|
||||||
fprintf(stderr, "Could not allocate stream\n");
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
st->id = oc->nb_streams-1;
|
|
||||||
c = st->codec;
|
|
||||||
|
|
||||||
switch ((*codec)->type) {
|
|
||||||
case AVMEDIA_TYPE_AUDIO:
|
|
||||||
c->sample_fmt = AV_SAMPLE_FMT_FLTP;
|
|
||||||
c->bit_rate = 64000;
|
|
||||||
c->sample_rate = 44100;
|
|
||||||
c->channels = 2;
|
|
||||||
break;
|
|
||||||
|
|
||||||
case AVMEDIA_TYPE_VIDEO:
|
|
||||||
c->codec_id = codec_id;
|
|
||||||
|
|
||||||
c->bit_rate = 400000;
|
|
||||||
/* Resolution must be a multiple of two. */
|
|
||||||
c->width = 352;
|
|
||||||
c->height = 288;
|
|
||||||
/* timebase: This is the fundamental unit of time (in seconds) in terms
|
|
||||||
* of which frame timestamps are represented. For fixed-fps content,
|
|
||||||
* timebase should be 1/framerate and timestamp increments should be
|
|
||||||
* identical to 1. */
|
|
||||||
c->time_base.den = STREAM_FRAME_RATE;
|
|
||||||
c->time_base.num = 1;
|
|
||||||
c->gop_size = 12; /* emit one intra frame every twelve frames at most */
|
|
||||||
c->pix_fmt = STREAM_PIX_FMT;
|
|
||||||
if (c->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
|
|
||||||
/* just for testing, we also add B frames */
|
|
||||||
c->max_b_frames = 2;
|
|
||||||
}
|
|
||||||
if (c->codec_id == AV_CODEC_ID_MPEG1VIDEO) {
|
|
||||||
/* Needed to avoid using macroblocks in which some coeffs overflow.
|
|
||||||
* This does not happen with normal video, it just happens here as
|
|
||||||
* the motion of the chroma plane does not match the luma plane. */
|
|
||||||
c->mb_decision = 2;
|
|
||||||
}
|
|
||||||
break;
|
|
||||||
|
|
||||||
default:
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Some formats want stream headers to be separate. */
|
|
||||||
if (oc->oformat->flags & AVFMT_GLOBALHEADER)
|
|
||||||
c->flags |= CODEC_FLAG_GLOBAL_HEADER;
|
|
||||||
|
|
||||||
return st;
|
|
||||||
}
|
|
||||||
|
|
||||||
/**************************************************************/
|
|
||||||
/* audio output */
|
|
||||||
|
|
||||||
static float t, tincr, tincr2;
|
|
||||||
|
|
||||||
static uint8_t **src_samples_data;
|
|
||||||
static int src_samples_linesize;
|
|
||||||
static int src_nb_samples;
|
|
||||||
|
|
||||||
static int max_dst_nb_samples;
|
|
||||||
uint8_t **dst_samples_data;
|
|
||||||
int dst_samples_linesize;
|
|
||||||
int dst_samples_size;
|
|
||||||
|
|
||||||
struct SwrContext *swr_ctx = NULL;
|
|
||||||
|
|
||||||
static void open_audio(AVFormatContext *oc, AVCodec *codec, AVStream *st)
|
|
||||||
{
|
|
||||||
AVCodecContext *c;
|
|
||||||
int ret;
|
|
||||||
|
|
||||||
c = st->codec;
|
|
||||||
|
|
||||||
/* open it */
|
|
||||||
ret = avcodec_open2(c, codec, NULL);
|
|
||||||
if (ret < 0) {
|
|
||||||
fprintf(stderr, "Could not open audio codec: %s\n", av_err2str(ret));
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* init signal generator */
|
|
||||||
t = 0;
|
|
||||||
tincr = 2 * M_PI * 110.0 / c->sample_rate;
|
|
||||||
/* increment frequency by 110 Hz per second */
|
|
||||||
tincr2 = 2 * M_PI * 110.0 / c->sample_rate / c->sample_rate;
|
|
||||||
|
|
||||||
src_nb_samples = c->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE ?
|
|
||||||
10000 : c->frame_size;
|
|
||||||
|
|
||||||
ret = av_samples_alloc_array_and_samples(&src_samples_data, &src_samples_linesize, c->channels,
|
|
||||||
src_nb_samples, c->sample_fmt, 0);
|
|
||||||
if (ret < 0) {
|
|
||||||
fprintf(stderr, "Could not allocate source samples\n");
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* create resampler context */
|
|
||||||
if (c->sample_fmt != AV_SAMPLE_FMT_S16) {
|
|
||||||
swr_ctx = swr_alloc();
|
|
||||||
if (!swr_ctx) {
|
|
||||||
fprintf(stderr, "Could not allocate resampler context\n");
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* set options */
|
|
||||||
av_opt_set_int (swr_ctx, "in_channel_count", c->channels, 0);
|
|
||||||
av_opt_set_int (swr_ctx, "in_sample_rate", c->sample_rate, 0);
|
|
||||||
av_opt_set_sample_fmt(swr_ctx, "in_sample_fmt", AV_SAMPLE_FMT_S16, 0);
|
|
||||||
av_opt_set_int (swr_ctx, "out_channel_count", c->channels, 0);
|
|
||||||
av_opt_set_int (swr_ctx, "out_sample_rate", c->sample_rate, 0);
|
|
||||||
av_opt_set_sample_fmt(swr_ctx, "out_sample_fmt", c->sample_fmt, 0);
|
|
||||||
|
|
||||||
/* initialize the resampling context */
|
|
||||||
if ((ret = swr_init(swr_ctx)) < 0) {
|
|
||||||
fprintf(stderr, "Failed to initialize the resampling context\n");
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/* compute the number of converted samples: buffering is avoided
|
|
||||||
* ensuring that the output buffer will contain at least all the
|
|
||||||
* converted input samples */
|
|
||||||
max_dst_nb_samples = src_nb_samples;
|
|
||||||
ret = av_samples_alloc_array_and_samples(&dst_samples_data, &dst_samples_linesize, c->channels,
|
|
||||||
max_dst_nb_samples, c->sample_fmt, 0);
|
|
||||||
if (ret < 0) {
|
|
||||||
fprintf(stderr, "Could not allocate destination samples\n");
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
dst_samples_size = av_samples_get_buffer_size(NULL, c->channels, max_dst_nb_samples,
|
|
||||||
c->sample_fmt, 0);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Prepare a 16 bit dummy audio frame of 'frame_size' samples and
|
|
||||||
* 'nb_channels' channels. */
|
|
||||||
static void get_audio_frame(int16_t *samples, int frame_size, int nb_channels)
|
|
||||||
{
|
|
||||||
int j, i, v;
|
|
||||||
int16_t *q;
|
|
||||||
|
|
||||||
q = samples;
|
|
||||||
for (j = 0; j < frame_size; j++) {
|
|
||||||
v = (int)(sin(t) * 10000);
|
|
||||||
for (i = 0; i < nb_channels; i++)
|
|
||||||
*q++ = v;
|
|
||||||
t += tincr;
|
|
||||||
tincr += tincr2;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
static void write_audio_frame(AVFormatContext *oc, AVStream *st)
|
|
||||||
{
|
|
||||||
AVCodecContext *c;
|
|
||||||
AVPacket pkt = { 0 }; // data and size must be 0;
|
|
||||||
AVFrame *frame = avcodec_alloc_frame();
|
|
||||||
int got_packet, ret, dst_nb_samples;
|
|
||||||
|
|
||||||
av_init_packet(&pkt);
|
|
||||||
c = st->codec;
|
|
||||||
|
|
||||||
get_audio_frame((int16_t *)src_samples_data[0], src_nb_samples, c->channels);
|
|
||||||
|
|
||||||
/* convert samples from native format to destination codec format, using the resampler */
|
|
||||||
if (swr_ctx) {
|
|
||||||
/* compute destination number of samples */
|
|
||||||
dst_nb_samples = av_rescale_rnd(swr_get_delay(swr_ctx, c->sample_rate) + src_nb_samples,
|
|
||||||
c->sample_rate, c->sample_rate, AV_ROUND_UP);
|
|
||||||
if (dst_nb_samples > max_dst_nb_samples) {
|
|
||||||
av_free(dst_samples_data[0]);
|
|
||||||
ret = av_samples_alloc(dst_samples_data, &dst_samples_linesize, c->channels,
|
|
||||||
dst_nb_samples, c->sample_fmt, 0);
|
|
||||||
if (ret < 0)
|
|
||||||
exit(1);
|
|
||||||
max_dst_nb_samples = dst_nb_samples;
|
|
||||||
dst_samples_size = av_samples_get_buffer_size(NULL, c->channels, dst_nb_samples,
|
|
||||||
c->sample_fmt, 0);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* convert to destination format */
|
|
||||||
ret = swr_convert(swr_ctx,
|
|
||||||
dst_samples_data, dst_nb_samples,
|
|
||||||
(const uint8_t **)src_samples_data, src_nb_samples);
|
|
||||||
if (ret < 0) {
|
|
||||||
fprintf(stderr, "Error while converting\n");
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
} else {
|
|
||||||
dst_samples_data[0] = src_samples_data[0];
|
|
||||||
dst_nb_samples = src_nb_samples;
|
|
||||||
}
|
|
||||||
|
|
||||||
frame->nb_samples = dst_nb_samples;
|
|
||||||
avcodec_fill_audio_frame(frame, c->channels, c->sample_fmt,
|
|
||||||
dst_samples_data[0], dst_samples_size, 0);
|
|
||||||
|
|
||||||
ret = avcodec_encode_audio2(c, &pkt, frame, &got_packet);
|
|
||||||
if (ret < 0) {
|
|
||||||
fprintf(stderr, "Error encoding audio frame: %s\n", av_err2str(ret));
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
if (!got_packet)
|
|
||||||
return;
|
|
||||||
|
|
||||||
pkt.stream_index = st->index;
|
|
||||||
|
|
||||||
/* Write the compressed frame to the media file. */
|
|
||||||
ret = av_interleaved_write_frame(oc, &pkt);
|
|
||||||
if (ret != 0) {
|
|
||||||
fprintf(stderr, "Error while writing audio frame: %s\n",
|
|
||||||
av_err2str(ret));
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
avcodec_free_frame(&frame);
|
|
||||||
}
|
|
||||||
|
|
||||||
static void close_audio(AVFormatContext *oc, AVStream *st)
|
|
||||||
{
|
|
||||||
avcodec_close(st->codec);
|
|
||||||
av_free(src_samples_data[0]);
|
|
||||||
av_free(dst_samples_data[0]);
|
|
||||||
}
|
|
||||||
|
|
||||||
/**************************************************************/
|
|
||||||
/* video output */
|
|
||||||
|
|
||||||
static AVFrame *frame;
|
|
||||||
static AVPicture src_picture, dst_picture;
|
|
||||||
static int frame_count;
|
|
||||||
|
|
||||||
static void open_video(AVFormatContext *oc, AVCodec *codec, AVStream *st)
|
|
||||||
{
|
|
||||||
int ret;
|
|
||||||
AVCodecContext *c = st->codec;
|
|
||||||
|
|
||||||
/* open the codec */
|
|
||||||
ret = avcodec_open2(c, codec, NULL);
|
|
||||||
if (ret < 0) {
|
|
||||||
fprintf(stderr, "Could not open video codec: %s\n", av_err2str(ret));
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* allocate and init a re-usable frame */
|
|
||||||
frame = avcodec_alloc_frame();
|
|
||||||
if (!frame) {
|
|
||||||
fprintf(stderr, "Could not allocate video frame\n");
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Allocate the encoded raw picture. */
|
|
||||||
ret = avpicture_alloc(&dst_picture, c->pix_fmt, c->width, c->height);
|
|
||||||
if (ret < 0) {
|
|
||||||
fprintf(stderr, "Could not allocate picture: %s\n", av_err2str(ret));
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* If the output format is not YUV420P, then a temporary YUV420P
|
|
||||||
* picture is needed too. It is then converted to the required
|
|
||||||
* output format. */
|
|
||||||
if (c->pix_fmt != AV_PIX_FMT_YUV420P) {
|
|
||||||
ret = avpicture_alloc(&src_picture, AV_PIX_FMT_YUV420P, c->width, c->height);
|
|
||||||
if (ret < 0) {
|
|
||||||
fprintf(stderr, "Could not allocate temporary picture: %s\n",
|
|
||||||
av_err2str(ret));
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/* copy data and linesize picture pointers to frame */
|
|
||||||
*((AVPicture *)frame) = dst_picture;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Prepare a dummy image. */
|
|
||||||
static void fill_yuv_image(AVPicture *pict, int frame_index,
|
|
||||||
int width, int height)
|
|
||||||
{
|
|
||||||
int x, y, i;
|
|
||||||
|
|
||||||
i = frame_index;
|
|
||||||
|
|
||||||
/* Y */
|
|
||||||
for (y = 0; y < height; y++)
|
|
||||||
for (x = 0; x < width; x++)
|
|
||||||
pict->data[0][y * pict->linesize[0] + x] = x + y + i * 3;
|
|
||||||
|
|
||||||
/* Cb and Cr */
|
|
||||||
for (y = 0; y < height / 2; y++) {
|
|
||||||
for (x = 0; x < width / 2; x++) {
|
|
||||||
pict->data[1][y * pict->linesize[1] + x] = 128 + y + i * 2;
|
|
||||||
pict->data[2][y * pict->linesize[2] + x] = 64 + x + i * 5;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
static void write_video_frame(AVFormatContext *oc, AVStream *st)
|
|
||||||
{
|
|
||||||
int ret;
|
|
||||||
static struct SwsContext *sws_ctx;
|
|
||||||
AVCodecContext *c = st->codec;
|
|
||||||
|
|
||||||
if (frame_count >= STREAM_NB_FRAMES) {
|
|
||||||
/* No more frames to compress. The codec has a latency of a few
|
|
||||||
* frames if using B-frames, so we get the last frames by
|
|
||||||
* passing the same picture again. */
|
|
||||||
} else {
|
|
||||||
if (c->pix_fmt != AV_PIX_FMT_YUV420P) {
|
|
||||||
/* as we only generate a YUV420P picture, we must convert it
|
|
||||||
* to the codec pixel format if needed */
|
|
||||||
if (!sws_ctx) {
|
|
||||||
sws_ctx = sws_getContext(c->width, c->height, AV_PIX_FMT_YUV420P,
|
|
||||||
c->width, c->height, c->pix_fmt,
|
|
||||||
sws_flags, NULL, NULL, NULL);
|
|
||||||
if (!sws_ctx) {
|
|
||||||
fprintf(stderr,
|
|
||||||
"Could not initialize the conversion context\n");
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
fill_yuv_image(&src_picture, frame_count, c->width, c->height);
|
|
||||||
sws_scale(sws_ctx,
|
|
||||||
(const uint8_t * const *)src_picture.data, src_picture.linesize,
|
|
||||||
0, c->height, dst_picture.data, dst_picture.linesize);
|
|
||||||
} else {
|
|
||||||
fill_yuv_image(&dst_picture, frame_count, c->width, c->height);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
if (oc->oformat->flags & AVFMT_RAWPICTURE) {
|
|
||||||
/* Raw video case - directly store the picture in the packet */
|
|
||||||
AVPacket pkt;
|
|
||||||
av_init_packet(&pkt);
|
|
||||||
|
|
||||||
pkt.flags |= AV_PKT_FLAG_KEY;
|
|
||||||
pkt.stream_index = st->index;
|
|
||||||
pkt.data = dst_picture.data[0];
|
|
||||||
pkt.size = sizeof(AVPicture);
|
|
||||||
|
|
||||||
ret = av_interleaved_write_frame(oc, &pkt);
|
|
||||||
} else {
|
|
||||||
AVPacket pkt = { 0 };
|
|
||||||
int got_packet;
|
|
||||||
av_init_packet(&pkt);
|
|
||||||
|
|
||||||
/* encode the image */
|
|
||||||
ret = avcodec_encode_video2(c, &pkt, frame, &got_packet);
|
|
||||||
if (ret < 0) {
|
|
||||||
fprintf(stderr, "Error encoding video frame: %s\n", av_err2str(ret));
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
/* If size is zero, it means the image was buffered. */
|
|
||||||
|
|
||||||
if (!ret && got_packet && pkt.size) {
|
|
||||||
pkt.stream_index = st->index;
|
|
||||||
|
|
||||||
/* Write the compressed frame to the media file. */
|
|
||||||
ret = av_interleaved_write_frame(oc, &pkt);
|
|
||||||
} else {
|
|
||||||
ret = 0;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
if (ret != 0) {
|
|
||||||
fprintf(stderr, "Error while writing video frame: %s\n", av_err2str(ret));
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
frame_count++;
|
|
||||||
}
|
|
||||||
|
|
||||||
static void close_video(AVFormatContext *oc, AVStream *st)
|
|
||||||
{
|
|
||||||
avcodec_close(st->codec);
|
|
||||||
av_free(src_picture.data[0]);
|
|
||||||
av_free(dst_picture.data[0]);
|
|
||||||
av_free(frame);
|
|
||||||
}
|
|
||||||
|
|
||||||
/**************************************************************/
|
|
||||||
/* media file output */
|
|
||||||
|
|
||||||
int main(int argc, char **argv)
|
|
||||||
{
|
|
||||||
const char *filename;
|
|
||||||
AVOutputFormat *fmt;
|
|
||||||
AVFormatContext *oc;
|
|
||||||
AVStream *audio_st, *video_st;
|
|
||||||
AVCodec *audio_codec, *video_codec;
|
|
||||||
double audio_time, video_time;
|
|
||||||
int ret;
|
|
||||||
|
|
||||||
/* Initialize libavcodec, and register all codecs and formats. */
|
|
||||||
av_register_all();
|
|
||||||
|
|
||||||
if (argc != 2) {
|
|
||||||
printf("usage: %s output_file\n"
|
|
||||||
"API example program to output a media file with libavformat.\n"
|
|
||||||
"This program generates a synthetic audio and video stream, encodes and\n"
|
|
||||||
"muxes them into a file named output_file.\n"
|
|
||||||
"The output format is automatically guessed according to the file extension.\n"
|
|
||||||
"Raw images can also be output by using '%%d' in the filename.\n"
|
|
||||||
"\n", argv[0]);
|
|
||||||
return 1;
|
|
||||||
}
|
|
||||||
|
|
||||||
filename = argv[1];
|
|
||||||
|
|
||||||
/* allocate the output media context */
|
|
||||||
avformat_alloc_output_context2(&oc, NULL, NULL, filename);
|
|
||||||
if (!oc) {
|
|
||||||
printf("Could not deduce output format from file extension: using MPEG.\n");
|
|
||||||
avformat_alloc_output_context2(&oc, NULL, "mpeg", filename);
|
|
||||||
}
|
|
||||||
if (!oc) {
|
|
||||||
return 1;
|
|
||||||
}
|
|
||||||
fmt = oc->oformat;
|
|
||||||
|
|
||||||
/* Add the audio and video streams using the default format codecs
|
|
||||||
* and initialize the codecs. */
|
|
||||||
video_st = NULL;
|
|
||||||
audio_st = NULL;
|
|
||||||
|
|
||||||
if (fmt->video_codec != AV_CODEC_ID_NONE) {
|
|
||||||
video_st = add_stream(oc, &video_codec, fmt->video_codec);
|
|
||||||
}
|
|
||||||
if (fmt->audio_codec != AV_CODEC_ID_NONE) {
|
|
||||||
audio_st = add_stream(oc, &audio_codec, fmt->audio_codec);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Now that all the parameters are set, we can open the audio and
|
|
||||||
* video codecs and allocate the necessary encode buffers. */
|
|
||||||
if (video_st)
|
|
||||||
open_video(oc, video_codec, video_st);
|
|
||||||
if (audio_st)
|
|
||||||
open_audio(oc, audio_codec, audio_st);
|
|
||||||
|
|
||||||
av_dump_format(oc, 0, filename, 1);
|
|
||||||
|
|
||||||
/* open the output file, if needed */
|
|
||||||
if (!(fmt->flags & AVFMT_NOFILE)) {
|
|
||||||
ret = avio_open(&oc->pb, filename, AVIO_FLAG_WRITE);
|
|
||||||
if (ret < 0) {
|
|
||||||
fprintf(stderr, "Could not open '%s': %s\n", filename,
|
|
||||||
av_err2str(ret));
|
|
||||||
return 1;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Write the stream header, if any. */
|
|
||||||
ret = avformat_write_header(oc, NULL);
|
|
||||||
if (ret < 0) {
|
|
||||||
fprintf(stderr, "Error occurred when opening output file: %s\n",
|
|
||||||
av_err2str(ret));
|
|
||||||
return 1;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (frame)
|
|
||||||
frame->pts = 0;
|
|
||||||
for (;;) {
|
|
||||||
/* Compute current audio and video time. */
|
|
||||||
audio_time = audio_st ? audio_st->pts.val * av_q2d(audio_st->time_base) : 0.0;
|
|
||||||
video_time = video_st ? video_st->pts.val * av_q2d(video_st->time_base) : 0.0;
|
|
||||||
|
|
||||||
if ((!audio_st || audio_time >= STREAM_DURATION) &&
|
|
||||||
(!video_st || video_time >= STREAM_DURATION))
|
|
||||||
break;
|
|
||||||
|
|
||||||
/* write interleaved audio and video frames */
|
|
||||||
if (!video_st || (video_st && audio_st && audio_time < video_time)) {
|
|
||||||
write_audio_frame(oc, audio_st);
|
|
||||||
} else {
|
|
||||||
write_video_frame(oc, video_st);
|
|
||||||
frame->pts += av_rescale_q(1, video_st->codec->time_base, video_st->time_base);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Write the trailer, if any. The trailer must be written before you
|
|
||||||
* close the CodecContexts open when you wrote the header; otherwise
|
|
||||||
* av_write_trailer() may try to use memory that was freed on
|
|
||||||
* av_codec_close(). */
|
|
||||||
av_write_trailer(oc);
|
|
||||||
|
|
||||||
/* Close each codec. */
|
|
||||||
if (video_st)
|
|
||||||
close_video(oc, video_st);
|
|
||||||
if (audio_st)
|
|
||||||
close_audio(oc, audio_st);
|
|
||||||
|
|
||||||
if (!(fmt->flags & AVFMT_NOFILE))
|
|
||||||
/* Close the output file. */
|
|
||||||
avio_close(oc->pb);
|
|
||||||
|
|
||||||
/* free the stream */
|
|
||||||
avformat_free_context(oc);
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
@@ -1,211 +0,0 @@
|
|||||||
/*
|
|
||||||
* Copyright (c) 2012 Stefano Sabatini
|
|
||||||
*
|
|
||||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
||||||
* of this software and associated documentation files (the "Software"), to deal
|
|
||||||
* in the Software without restriction, including without limitation the rights
|
|
||||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
||||||
* copies of the Software, and to permit persons to whom the Software is
|
|
||||||
* furnished to do so, subject to the following conditions:
|
|
||||||
*
|
|
||||||
* The above copyright notice and this permission notice shall be included in
|
|
||||||
* all copies or substantial portions of the Software.
|
|
||||||
*
|
|
||||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
||||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
||||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
||||||
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
||||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
||||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
||||||
* THE SOFTWARE.
|
|
||||||
*/
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @example doc/examples/resampling_audio.c
|
|
||||||
* libswresample API use example.
|
|
||||||
*/
|
|
||||||
|
|
||||||
#include <libavutil/opt.h>
|
|
||||||
#include <libavutil/channel_layout.h>
|
|
||||||
#include <libavutil/samplefmt.h>
|
|
||||||
#include <libswresample/swresample.h>
|
|
||||||
|
|
||||||
static int get_format_from_sample_fmt(const char **fmt,
|
|
||||||
enum AVSampleFormat sample_fmt)
|
|
||||||
{
|
|
||||||
int i;
|
|
||||||
struct sample_fmt_entry {
|
|
||||||
enum AVSampleFormat sample_fmt; const char *fmt_be, *fmt_le;
|
|
||||||
} sample_fmt_entries[] = {
|
|
||||||
{ AV_SAMPLE_FMT_U8, "u8", "u8" },
|
|
||||||
{ AV_SAMPLE_FMT_S16, "s16be", "s16le" },
|
|
||||||
{ AV_SAMPLE_FMT_S32, "s32be", "s32le" },
|
|
||||||
{ AV_SAMPLE_FMT_FLT, "f32be", "f32le" },
|
|
||||||
{ AV_SAMPLE_FMT_DBL, "f64be", "f64le" },
|
|
||||||
};
|
|
||||||
*fmt = NULL;
|
|
||||||
|
|
||||||
for (i = 0; i < FF_ARRAY_ELEMS(sample_fmt_entries); i++) {
|
|
||||||
struct sample_fmt_entry *entry = &sample_fmt_entries[i];
|
|
||||||
if (sample_fmt == entry->sample_fmt) {
|
|
||||||
*fmt = AV_NE(entry->fmt_be, entry->fmt_le);
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
fprintf(stderr,
|
|
||||||
"Sample format %s not supported as output format\n",
|
|
||||||
av_get_sample_fmt_name(sample_fmt));
|
|
||||||
return AVERROR(EINVAL);
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Fill dst buffer with nb_samples, generated starting from t.
|
|
||||||
*/
|
|
||||||
void fill_samples(double *dst, int nb_samples, int nb_channels, int sample_rate, double *t)
|
|
||||||
{
|
|
||||||
int i, j;
|
|
||||||
double tincr = 1.0 / sample_rate, *dstp = dst;
|
|
||||||
const double c = 2 * M_PI * 440.0;
|
|
||||||
|
|
||||||
/* generate sin tone with 440Hz frequency and duplicated channels */
|
|
||||||
for (i = 0; i < nb_samples; i++) {
|
|
||||||
*dstp = sin(c * *t);
|
|
||||||
for (j = 1; j < nb_channels; j++)
|
|
||||||
dstp[j] = dstp[0];
|
|
||||||
dstp += nb_channels;
|
|
||||||
*t += tincr;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
int main(int argc, char **argv)
|
|
||||||
{
|
|
||||||
int64_t src_ch_layout = AV_CH_LAYOUT_STEREO, dst_ch_layout = AV_CH_LAYOUT_SURROUND;
|
|
||||||
int src_rate = 48000, dst_rate = 44100;
|
|
||||||
uint8_t **src_data = NULL, **dst_data = NULL;
|
|
||||||
int src_nb_channels = 0, dst_nb_channels = 0;
|
|
||||||
int src_linesize, dst_linesize;
|
|
||||||
int src_nb_samples = 1024, dst_nb_samples, max_dst_nb_samples;
|
|
||||||
enum AVSampleFormat src_sample_fmt = AV_SAMPLE_FMT_DBL, dst_sample_fmt = AV_SAMPLE_FMT_S16;
|
|
||||||
const char *dst_filename = NULL;
|
|
||||||
FILE *dst_file;
|
|
||||||
int dst_bufsize;
|
|
||||||
const char *fmt;
|
|
||||||
struct SwrContext *swr_ctx;
|
|
||||||
double t;
|
|
||||||
int ret;
|
|
||||||
|
|
||||||
if (argc != 2) {
|
|
||||||
fprintf(stderr, "Usage: %s output_file\n"
|
|
||||||
"API example program to show how to resample an audio stream with libswresample.\n"
|
|
||||||
"This program generates a series of audio frames, resamples them to a specified "
|
|
||||||
"output format and rate and saves them to an output file named output_file.\n",
|
|
||||||
argv[0]);
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
dst_filename = argv[1];
|
|
||||||
|
|
||||||
dst_file = fopen(dst_filename, "wb");
|
|
||||||
if (!dst_file) {
|
|
||||||
fprintf(stderr, "Could not open destination file %s\n", dst_filename);
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* create resampler context */
|
|
||||||
swr_ctx = swr_alloc();
|
|
||||||
if (!swr_ctx) {
|
|
||||||
fprintf(stderr, "Could not allocate resampler context\n");
|
|
||||||
ret = AVERROR(ENOMEM);
|
|
||||||
goto end;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* set options */
|
|
||||||
av_opt_set_int(swr_ctx, "in_channel_layout", src_ch_layout, 0);
|
|
||||||
av_opt_set_int(swr_ctx, "in_sample_rate", src_rate, 0);
|
|
||||||
av_opt_set_sample_fmt(swr_ctx, "in_sample_fmt", src_sample_fmt, 0);
|
|
||||||
|
|
||||||
av_opt_set_int(swr_ctx, "out_channel_layout", dst_ch_layout, 0);
|
|
||||||
av_opt_set_int(swr_ctx, "out_sample_rate", dst_rate, 0);
|
|
||||||
av_opt_set_sample_fmt(swr_ctx, "out_sample_fmt", dst_sample_fmt, 0);
|
|
||||||
|
|
||||||
/* initialize the resampling context */
|
|
||||||
if ((ret = swr_init(swr_ctx)) < 0) {
|
|
||||||
fprintf(stderr, "Failed to initialize the resampling context\n");
|
|
||||||
goto end;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* allocate source and destination samples buffers */
|
|
||||||
|
|
||||||
src_nb_channels = av_get_channel_layout_nb_channels(src_ch_layout);
|
|
||||||
ret = av_samples_alloc_array_and_samples(&src_data, &src_linesize, src_nb_channels,
|
|
||||||
src_nb_samples, src_sample_fmt, 0);
|
|
||||||
if (ret < 0) {
|
|
||||||
fprintf(stderr, "Could not allocate source samples\n");
|
|
||||||
goto end;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* compute the number of converted samples: buffering is avoided
|
|
||||||
* ensuring that the output buffer will contain at least all the
|
|
||||||
* converted input samples */
|
|
||||||
max_dst_nb_samples = dst_nb_samples =
|
|
||||||
av_rescale_rnd(src_nb_samples, dst_rate, src_rate, AV_ROUND_UP);
|
|
||||||
|
|
||||||
/* buffer is going to be directly written to a rawaudio file, no alignment */
|
|
||||||
dst_nb_channels = av_get_channel_layout_nb_channels(dst_ch_layout);
|
|
||||||
ret = av_samples_alloc_array_and_samples(&dst_data, &dst_linesize, dst_nb_channels,
|
|
||||||
dst_nb_samples, dst_sample_fmt, 0);
|
|
||||||
if (ret < 0) {
|
|
||||||
fprintf(stderr, "Could not allocate destination samples\n");
|
|
||||||
goto end;
|
|
||||||
}
|
|
||||||
|
|
||||||
t = 0;
|
|
||||||
do {
|
|
||||||
/* generate synthetic audio */
|
|
||||||
fill_samples((double *)src_data[0], src_nb_samples, src_nb_channels, src_rate, &t);
|
|
||||||
|
|
||||||
/* compute destination number of samples */
|
|
||||||
dst_nb_samples = av_rescale_rnd(swr_get_delay(swr_ctx, src_rate) +
|
|
||||||
src_nb_samples, dst_rate, src_rate, AV_ROUND_UP);
|
|
||||||
if (dst_nb_samples > max_dst_nb_samples) {
|
|
||||||
av_free(dst_data[0]);
|
|
||||||
ret = av_samples_alloc(dst_data, &dst_linesize, dst_nb_channels,
|
|
||||||
dst_nb_samples, dst_sample_fmt, 1);
|
|
||||||
if (ret < 0)
|
|
||||||
break;
|
|
||||||
max_dst_nb_samples = dst_nb_samples;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* convert to destination format */
|
|
||||||
ret = swr_convert(swr_ctx, dst_data, dst_nb_samples, (const uint8_t **)src_data, src_nb_samples);
|
|
||||||
if (ret < 0) {
|
|
||||||
fprintf(stderr, "Error while converting\n");
|
|
||||||
goto end;
|
|
||||||
}
|
|
||||||
dst_bufsize = av_samples_get_buffer_size(&dst_linesize, dst_nb_channels,
|
|
||||||
ret, dst_sample_fmt, 1);
|
|
||||||
printf("t:%f in:%d out:%d\n", t, src_nb_samples, ret);
|
|
||||||
fwrite(dst_data[0], 1, dst_bufsize, dst_file);
|
|
||||||
} while (t < 10);
|
|
||||||
|
|
||||||
if ((ret = get_format_from_sample_fmt(&fmt, dst_sample_fmt)) < 0)
|
|
||||||
goto end;
|
|
||||||
fprintf(stderr, "Resampling succeeded. Play the output file with the command:\n"
|
|
||||||
"ffplay -f %s -channel_layout %"PRId64" -channels %d -ar %d %s\n",
|
|
||||||
fmt, dst_ch_layout, dst_nb_channels, dst_rate, dst_filename);
|
|
||||||
|
|
||||||
end:
|
|
||||||
if (dst_file)
|
|
||||||
fclose(dst_file);
|
|
||||||
|
|
||||||
if (src_data)
|
|
||||||
av_freep(&src_data[0]);
|
|
||||||
av_freep(&src_data);
|
|
||||||
|
|
||||||
if (dst_data)
|
|
||||||
av_freep(&dst_data[0]);
|
|
||||||
av_freep(&dst_data);
|
|
||||||
|
|
||||||
swr_free(&swr_ctx);
|
|
||||||
return ret < 0;
|
|
||||||
}
|
|
||||||
@@ -1,141 +0,0 @@
|
|||||||
/*
|
|
||||||
* Copyright (c) 2012 Stefano Sabatini
|
|
||||||
*
|
|
||||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
||||||
* of this software and associated documentation files (the "Software"), to deal
|
|
||||||
* in the Software without restriction, including without limitation the rights
|
|
||||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
||||||
* copies of the Software, and to permit persons to whom the Software is
|
|
||||||
* furnished to do so, subject to the following conditions:
|
|
||||||
*
|
|
||||||
* The above copyright notice and this permission notice shall be included in
|
|
||||||
* all copies or substantial portions of the Software.
|
|
||||||
*
|
|
||||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
||||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
||||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
||||||
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
||||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
||||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
||||||
* THE SOFTWARE.
|
|
||||||
*/
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @file
|
|
||||||
* libswscale API use example.
|
|
||||||
* @example doc/examples/scaling_video.c
|
|
||||||
*/
|
|
||||||
|
|
||||||
#include <libavutil/imgutils.h>
|
|
||||||
#include <libavutil/parseutils.h>
|
|
||||||
#include <libswscale/swscale.h>
|
|
||||||
|
|
||||||
static void fill_yuv_image(uint8_t *data[4], int linesize[4],
|
|
||||||
int width, int height, int frame_index)
|
|
||||||
{
|
|
||||||
int x, y;
|
|
||||||
|
|
||||||
/* Y */
|
|
||||||
for (y = 0; y < height; y++)
|
|
||||||
for (x = 0; x < width; x++)
|
|
||||||
data[0][y * linesize[0] + x] = x + y + frame_index * 3;
|
|
||||||
|
|
||||||
/* Cb and Cr */
|
|
||||||
for (y = 0; y < height / 2; y++) {
|
|
||||||
for (x = 0; x < width / 2; x++) {
|
|
||||||
data[1][y * linesize[1] + x] = 128 + y + frame_index * 2;
|
|
||||||
data[2][y * linesize[2] + x] = 64 + x + frame_index * 5;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
int main(int argc, char **argv)
|
|
||||||
{
|
|
||||||
uint8_t *src_data[4], *dst_data[4];
|
|
||||||
int src_linesize[4], dst_linesize[4];
|
|
||||||
int src_w = 320, src_h = 240, dst_w, dst_h;
|
|
||||||
enum AVPixelFormat src_pix_fmt = AV_PIX_FMT_YUV420P, dst_pix_fmt = AV_PIX_FMT_RGB24;
|
|
||||||
const char *dst_size = NULL;
|
|
||||||
const char *dst_filename = NULL;
|
|
||||||
FILE *dst_file;
|
|
||||||
int dst_bufsize;
|
|
||||||
struct SwsContext *sws_ctx;
|
|
||||||
int i, ret;
|
|
||||||
|
|
||||||
if (argc != 3) {
|
|
||||||
fprintf(stderr, "Usage: %s output_file output_size\n"
|
|
||||||
"API example program to show how to scale an image with libswscale.\n"
|
|
||||||
"This program generates a series of pictures, rescales them to the given "
|
|
||||||
"output_size and saves them to an output file named output_file\n."
|
|
||||||
"\n", argv[0]);
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
dst_filename = argv[1];
|
|
||||||
dst_size = argv[2];
|
|
||||||
|
|
||||||
if (av_parse_video_size(&dst_w, &dst_h, dst_size) < 0) {
|
|
||||||
fprintf(stderr,
|
|
||||||
"Invalid size '%s', must be in the form WxH or a valid size abbreviation\n",
|
|
||||||
dst_size);
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
dst_file = fopen(dst_filename, "wb");
|
|
||||||
if (!dst_file) {
|
|
||||||
fprintf(stderr, "Could not open destination file %s\n", dst_filename);
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* create scaling context */
|
|
||||||
sws_ctx = sws_getContext(src_w, src_h, src_pix_fmt,
|
|
||||||
dst_w, dst_h, dst_pix_fmt,
|
|
||||||
SWS_BILINEAR, NULL, NULL, NULL);
|
|
||||||
if (!sws_ctx) {
|
|
||||||
fprintf(stderr,
|
|
||||||
"Impossible to create scale context for the conversion "
|
|
||||||
"fmt:%s s:%dx%d -> fmt:%s s:%dx%d\n",
|
|
||||||
av_get_pix_fmt_name(src_pix_fmt), src_w, src_h,
|
|
||||||
av_get_pix_fmt_name(dst_pix_fmt), dst_w, dst_h);
|
|
||||||
ret = AVERROR(EINVAL);
|
|
||||||
goto end;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* allocate source and destination image buffers */
|
|
||||||
if ((ret = av_image_alloc(src_data, src_linesize,
|
|
||||||
src_w, src_h, src_pix_fmt, 16)) < 0) {
|
|
||||||
fprintf(stderr, "Could not allocate source image\n");
|
|
||||||
goto end;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* buffer is going to be written to rawvideo file, no alignment */
|
|
||||||
if ((ret = av_image_alloc(dst_data, dst_linesize,
|
|
||||||
dst_w, dst_h, dst_pix_fmt, 1)) < 0) {
|
|
||||||
fprintf(stderr, "Could not allocate destination image\n");
|
|
||||||
goto end;
|
|
||||||
}
|
|
||||||
dst_bufsize = ret;
|
|
||||||
|
|
||||||
for (i = 0; i < 100; i++) {
|
|
||||||
/* generate synthetic video */
|
|
||||||
fill_yuv_image(src_data, src_linesize, src_w, src_h, i);
|
|
||||||
|
|
||||||
/* convert to destination format */
|
|
||||||
sws_scale(sws_ctx, (const uint8_t * const*)src_data,
|
|
||||||
src_linesize, 0, src_h, dst_data, dst_linesize);
|
|
||||||
|
|
||||||
/* write scaled image to file */
|
|
||||||
fwrite(dst_data[0], 1, dst_bufsize, dst_file);
|
|
||||||
}
|
|
||||||
|
|
||||||
fprintf(stderr, "Scaling succeeded. Play the output file with the command:\n"
|
|
||||||
"ffplay -f rawvideo -pix_fmt %s -video_size %dx%d %s\n",
|
|
||||||
av_get_pix_fmt_name(dst_pix_fmt), dst_w, dst_h, dst_filename);
|
|
||||||
|
|
||||||
end:
|
|
||||||
if (dst_file)
|
|
||||||
fclose(dst_file);
|
|
||||||
av_freep(&src_data[0]);
|
|
||||||
av_freep(&dst_data[0]);
|
|
||||||
sws_freeContext(sws_ctx);
|
|
||||||
return ret < 0;
|
|
||||||
}
|
|
||||||
439
doc/faq.texi
439
doc/faq.texi
@@ -2,15 +2,29 @@
|
|||||||
|
|
||||||
@settitle FFmpeg FAQ
|
@settitle FFmpeg FAQ
|
||||||
@titlepage
|
@titlepage
|
||||||
|
@sp 7
|
||||||
@center @titlefont{FFmpeg FAQ}
|
@center @titlefont{FFmpeg FAQ}
|
||||||
|
@sp 3
|
||||||
@end titlepage
|
@end titlepage
|
||||||
|
|
||||||
@top
|
|
||||||
|
|
||||||
@contents
|
|
||||||
|
|
||||||
@chapter General Questions
|
@chapter General Questions
|
||||||
|
|
||||||
|
@section When will the next FFmpeg version be released? / Why are FFmpeg releases so few and far between?
|
||||||
|
|
||||||
|
Like most open source projects FFmpeg suffers from a certain lack of
|
||||||
|
manpower. For this reason the developers have to prioritize the work
|
||||||
|
they do and putting out releases is not at the top of the list, fixing
|
||||||
|
bugs and reviewing patches takes precedence. Please don't complain or
|
||||||
|
request more timely and/or frequent releases unless you are willing to
|
||||||
|
help out creating them.
|
||||||
|
|
||||||
|
@section I have a problem with an old version of FFmpeg; where should I report it?
|
||||||
|
Nowhere. Upgrade to the latest release or if there is no recent release upgrade
|
||||||
|
to Subversion HEAD. You could also try to report it. Maybe you will get lucky and
|
||||||
|
become the first person in history to get an answer different from "upgrade
|
||||||
|
to Subversion HEAD".
|
||||||
|
|
||||||
@section Why doesn't FFmpeg support feature [xyz]?
|
@section Why doesn't FFmpeg support feature [xyz]?
|
||||||
|
|
||||||
Because no one has taken on that task yet. FFmpeg development is
|
Because no one has taken on that task yet. FFmpeg development is
|
||||||
@@ -24,6 +38,30 @@ No. Windows DLLs are not portable, bloated and often slow.
|
|||||||
Moreover FFmpeg strives to support all codecs natively.
|
Moreover FFmpeg strives to support all codecs natively.
|
||||||
A DLL loader is not conducive to that goal.
|
A DLL loader is not conducive to that goal.
|
||||||
|
|
||||||
|
@section My bug report/mail to ffmpeg-devel/user has not received any replies.
|
||||||
|
|
||||||
|
Likely reasons
|
||||||
|
@itemize
|
||||||
|
@item We are busy and haven't had time yet to read your report or
|
||||||
|
investigate the issue.
|
||||||
|
@item You didn't follow bugreports.html.
|
||||||
|
@item You didn't use Subversion HEAD.
|
||||||
|
@item You reported a segmentation fault without gdb output.
|
||||||
|
@item You describe a problem but not how to reproduce it.
|
||||||
|
@item It's unclear if you use ffmpeg as command line tool or use
|
||||||
|
libav* from another application.
|
||||||
|
@item You speak about a video having problems on playback but
|
||||||
|
not what you use to play it.
|
||||||
|
@item We have no faint clue what you are talking about besides
|
||||||
|
that it is related to FFmpeg.
|
||||||
|
@end itemize
|
||||||
|
|
||||||
|
@section Is there a forum for FFmpeg? I do not like mailing lists.
|
||||||
|
|
||||||
|
You may view our mailing lists with a more forum-alike look here:
|
||||||
|
@url{http://dir.gmane.org/gmane.comp.video.ffmpeg.user},
|
||||||
|
but, if you post, please remember that our mailing list rules still apply there.
|
||||||
|
|
||||||
@section I cannot read this file although this format seems to be supported by ffmpeg.
|
@section I cannot read this file although this format seems to be supported by ffmpeg.
|
||||||
|
|
||||||
Even if ffmpeg can read the container format, it may not support all its
|
Even if ffmpeg can read the container format, it may not support all its
|
||||||
@@ -47,7 +85,7 @@ The following list of video codecs should work on most Windows systems:
|
|||||||
.asf only
|
.asf only
|
||||||
@item mpeg4
|
@item mpeg4
|
||||||
Only if you have some MPEG-4 codec like ffdshow or Xvid installed.
|
Only if you have some MPEG-4 codec like ffdshow or Xvid installed.
|
||||||
@item mpeg1video
|
@item mpeg1
|
||||||
.mpg only
|
.mpg only
|
||||||
@end table
|
@end table
|
||||||
Note, ASF files often have .wmv or .wma extensions in Windows. It should also
|
Note, ASF files often have .wmv or .wma extensions in Windows. It should also
|
||||||
@@ -59,9 +97,9 @@ The following list of audio codecs should work on most Windows systems:
|
|||||||
@table @option
|
@table @option
|
||||||
@item adpcm_ima_wav
|
@item adpcm_ima_wav
|
||||||
@item adpcm_ms
|
@item adpcm_ms
|
||||||
@item pcm_s16le
|
@item pcm
|
||||||
always
|
always
|
||||||
@item libmp3lame
|
@item mp3
|
||||||
If some MP3 codec like LAME is installed.
|
If some MP3 codec like LAME is installed.
|
||||||
@end table
|
@end table
|
||||||
|
|
||||||
@@ -79,23 +117,11 @@ not a bug they should fix:
|
|||||||
Then again, some of them do not know the difference between an undecidable
|
Then again, some of them do not know the difference between an undecidable
|
||||||
problem and an NP-hard problem...
|
problem and an NP-hard problem...
|
||||||
|
|
||||||
@section I have installed this library with my distro's package manager. Why does @command{configure} not see it?
|
|
||||||
|
|
||||||
Distributions usually split libraries in several packages. The main package
|
|
||||||
contains the files necessary to run programs using the library. The
|
|
||||||
development package contains the files necessary to build programs using the
|
|
||||||
library. Sometimes, docs and/or data are in a separate package too.
|
|
||||||
|
|
||||||
To build FFmpeg, you need to install the development package. It is usually
|
|
||||||
called @file{libfoo-dev} or @file{libfoo-devel}. You can remove it after the
|
|
||||||
build is finished, but be sure to keep the main package.
|
|
||||||
|
|
||||||
@chapter Usage
|
@chapter Usage
|
||||||
|
|
||||||
@section ffmpeg does not work; what is wrong?
|
@section ffmpeg does not work; what is wrong?
|
||||||
|
|
||||||
Try a @code{make distclean} in the ffmpeg source directory before the build.
|
Try a @code{make distclean} in the ffmpeg source directory before the build. If this does not help see
|
||||||
If this does not help see
|
|
||||||
(@url{http://ffmpeg.org/bugreports.html}).
|
(@url{http://ffmpeg.org/bugreports.html}).
|
||||||
|
|
||||||
@section How do I encode single pictures into movies?
|
@section How do I encode single pictures into movies?
|
||||||
@@ -110,16 +136,7 @@ Then you may run:
|
|||||||
|
|
||||||
Notice that @samp{%d} is replaced by the image number.
|
Notice that @samp{%d} is replaced by the image number.
|
||||||
|
|
||||||
@file{img%03d.jpg} means the sequence @file{img001.jpg}, @file{img002.jpg}, etc.
|
@file{img%03d.jpg} means the sequence @file{img001.jpg}, @file{img002.jpg}, etc...
|
||||||
|
|
||||||
Use the @option{-start_number} option to declare a starting number for
|
|
||||||
the sequence. This is useful if your sequence does not start with
|
|
||||||
@file{img001.jpg} but is still in a numerical order. The following
|
|
||||||
example will start with @file{img100.jpg}:
|
|
||||||
|
|
||||||
@example
|
|
||||||
ffmpeg -f image2 -start_number 100 -i img%d.jpg /tmp/a.mpg
|
|
||||||
@end example
|
|
||||||
|
|
||||||
If you have large number of pictures to rename, you can use the
|
If you have large number of pictures to rename, you can use the
|
||||||
following command to ease the burden. The command, using the bourne
|
following command to ease the burden. The command, using the bourne
|
||||||
@@ -128,7 +145,7 @@ that match @code{*jpg} to the @file{/tmp} directory in the sequence of
|
|||||||
@file{img001.jpg}, @file{img002.jpg} and so on.
|
@file{img001.jpg}, @file{img002.jpg} and so on.
|
||||||
|
|
||||||
@example
|
@example
|
||||||
x=1; for i in *jpg; do counter=$(printf %03d $x); ln -s "$i" /tmp/img"$counter".jpg; x=$(($x+1)); done
|
x=1; for i in *jpg; do counter=$(printf %03d $x); ln "$i" /tmp/img"$counter".jpg; x=$(($x+1)); done
|
||||||
@end example
|
@end example
|
||||||
|
|
||||||
If you want to sequence them by oldest modified first, substitute
|
If you want to sequence them by oldest modified first, substitute
|
||||||
@@ -142,12 +159,6 @@ Then run:
|
|||||||
|
|
||||||
The same logic is used for any image format that ffmpeg reads.
|
The same logic is used for any image format that ffmpeg reads.
|
||||||
|
|
||||||
You can also use @command{cat} to pipe images to ffmpeg:
|
|
||||||
|
|
||||||
@example
|
|
||||||
cat *.jpg | ffmpeg -f image2pipe -c:v mjpeg -i - output.mpg
|
|
||||||
@end example
|
|
||||||
|
|
||||||
@section How do I encode movie to single pictures?
|
@section How do I encode movie to single pictures?
|
||||||
|
|
||||||
Use:
|
Use:
|
||||||
@@ -161,15 +172,15 @@ The @file{movie.mpg} used as input will be converted to
|
|||||||
|
|
||||||
Instead of relying on file format self-recognition, you may also use
|
Instead of relying on file format self-recognition, you may also use
|
||||||
@table @option
|
@table @option
|
||||||
@item -c:v ppm
|
@item -vcodec ppm
|
||||||
@item -c:v png
|
@item -vcodec png
|
||||||
@item -c:v mjpeg
|
@item -vcodec mjpeg
|
||||||
@end table
|
@end table
|
||||||
to force the encoding.
|
to force the encoding.
|
||||||
|
|
||||||
Applying that to the previous example:
|
Applying that to the previous example:
|
||||||
@example
|
@example
|
||||||
ffmpeg -i movie.mpg -f image2 -c:v mjpeg menu%d.jpg
|
ffmpeg -i movie.mpg -f image2 -vcodec mjpeg menu%d.jpg
|
||||||
@end example
|
@end example
|
||||||
|
|
||||||
Beware that there is no "jpeg" codec. Use "mjpeg" instead.
|
Beware that there is no "jpeg" codec. Use "mjpeg" instead.
|
||||||
@@ -184,28 +195,79 @@ quite logical that there is a small reduction of quality. This is not a bug.
|
|||||||
|
|
||||||
Use @file{-} as file name.
|
Use @file{-} as file name.
|
||||||
|
|
||||||
|
@section Why does the chrominance data seem to be sampled at a different time from the luminance data on bt8x8 captures on Linux?
|
||||||
|
|
||||||
|
This is a well-known bug in the bt8x8 driver. For 2.4.26 there is a patch at
|
||||||
|
(@url{http://svn.ffmpeg.org/michael/trunk/patches/bttv-420-2.4.26.patch?view=co}). This may also
|
||||||
|
apply cleanly to other 2.4-series kernels.
|
||||||
|
|
||||||
|
@section How do I avoid the ugly aliasing artifacts in bt8x8 captures on Linux?
|
||||||
|
|
||||||
|
Pass 'combfilter=1 lumafilter=1' to the bttv driver. Note though that 'combfilter=1'
|
||||||
|
will cause somewhat too strong filtering. A fix is to apply (@url{http://svn.ffmpeg.org/michael/trunk/patches/bttv-comb-2.4.26.patch?view=co})
|
||||||
|
or (@url{http://svn.ffmpeg.org/michael/trunk/patches/bttv-comb-2.6.6.patch?view=co})
|
||||||
|
and pass 'combfilter=2'.
|
||||||
|
|
||||||
@section -f jpeg doesn't work.
|
@section -f jpeg doesn't work.
|
||||||
|
|
||||||
Try '-f image2 test%d.jpg'.
|
Try '-f image2 test%d.jpg'.
|
||||||
|
|
||||||
@section Why can I not change the frame rate?
|
@section Why can I not change the framerate?
|
||||||
|
|
||||||
Some codecs, like MPEG-1/2, only allow a small number of fixed frame rates.
|
Some codecs, like MPEG-1/2, only allow a small number of fixed framerates.
|
||||||
Choose a different codec with the -c:v command line option.
|
Choose a different codec with the -vcodec command line option.
|
||||||
|
|
||||||
@section How do I encode Xvid or DivX video with ffmpeg?
|
@section How do I encode Xvid or DivX video with ffmpeg?
|
||||||
|
|
||||||
Both Xvid and DivX (version 4+) are implementations of the ISO MPEG-4
|
Both Xvid and DivX (version 4+) are implementations of the ISO MPEG-4
|
||||||
standard (note that there are many other coding formats that use this
|
standard (note that there are many other coding formats that use this
|
||||||
same standard). Thus, use '-c:v mpeg4' to encode in these formats. The
|
same standard). Thus, use '-vcodec mpeg4' to encode in these formats. The
|
||||||
default fourcc stored in an MPEG-4-coded file will be 'FMP4'. If you want
|
default fourcc stored in an MPEG-4-coded file will be 'FMP4'. If you want
|
||||||
a different fourcc, use the '-vtag' option. E.g., '-vtag xvid' will
|
a different fourcc, use the '-vtag' option. E.g., '-vtag xvid' will
|
||||||
force the fourcc 'xvid' to be stored as the video fourcc rather than the
|
force the fourcc 'xvid' to be stored as the video fourcc rather than the
|
||||||
default.
|
default.
|
||||||
|
|
||||||
|
@section How do I encode videos which play on the iPod?
|
||||||
|
|
||||||
|
@table @option
|
||||||
|
@item needed stuff
|
||||||
|
-acodec libfaac -vcodec mpeg4 width<=320 height<=240
|
||||||
|
@item working stuff
|
||||||
|
4mv, title
|
||||||
|
@item non-working stuff
|
||||||
|
B-frames
|
||||||
|
@item example command line
|
||||||
|
ffmpeg -i input -acodec libfaac -ab 128kb -vcodec mpeg4 -b 1200kb -mbd 2 -flags +4mv -trellis 2 -aic 2 -cmp 2 -subcmp 2 -s 320x180 -metadata title=X output.mp4
|
||||||
|
@end table
|
||||||
|
|
||||||
|
@section How do I encode videos which play on the PSP?
|
||||||
|
|
||||||
|
@table @option
|
||||||
|
@item needed stuff
|
||||||
|
-acodec libfaac -vcodec mpeg4 width*height<=76800 width%16=0 height%16=0 -ar 24000 -r 30000/1001 or 15000/1001 -f psp
|
||||||
|
@item working stuff
|
||||||
|
4mv, title
|
||||||
|
@item non-working stuff
|
||||||
|
B-frames
|
||||||
|
@item example command line
|
||||||
|
ffmpeg -i input -acodec libfaac -ab 128kb -vcodec mpeg4 -b 1200kb -ar 24000 -mbd 2 -flags +4mv -trellis 2 -aic 2 -cmp 2 -subcmp 2 -s 368x192 -r 30000/1001 -metadata title=X -f psp output.mp4
|
||||||
|
@item needed stuff for H.264
|
||||||
|
-acodec libfaac -vcodec libx264 width*height<=76800 width%16=0? height%16=0? -ar 48000 -coder 1 -r 30000/1001 or 15000/1001 -f psp
|
||||||
|
@item working stuff for H.264
|
||||||
|
title, loop filter
|
||||||
|
@item non-working stuff for H.264
|
||||||
|
CAVLC
|
||||||
|
@item example command line
|
||||||
|
ffmpeg -i input -acodec libfaac -ab 128kb -vcodec libx264 -b 1200kb -ar 48000 -mbd 2 -coder 1 -cmp 2 -subcmp 2 -s 368x192 -r 30000/1001 -metadata title=X -f psp -flags loop -trellis 2 -partitions parti4x4+parti8x8+partp4x4+partp8x8+partb8x8 output.mp4
|
||||||
|
@item higher resolution for newer PSP firmwares, width<=480, height<=272
|
||||||
|
-vcodec libx264 -level 21 -coder 1 -f psp
|
||||||
|
@item example command line
|
||||||
|
ffmpeg -i input -acodec libfaac -ab 128kb -ac 2 -ar 48000 -vcodec libx264 -level 21 -b 640kb -coder 1 -f psp -flags +loop -trellis 2 -partitions +parti4x4+parti8x8+partp4x4+partp8x8+partb8x8 -g 250 -s 480x272 output.mp4
|
||||||
|
@end table
|
||||||
|
|
||||||
@section Which are good parameters for encoding high quality MPEG-4?
|
@section Which are good parameters for encoding high quality MPEG-4?
|
||||||
|
|
||||||
'-mbd rd -flags +mv4+aic -trellis 2 -cmp 2 -subcmp 2 -g 300 -pass 1/2',
|
'-mbd rd -flags +4mv+aic -trellis 2 -cmp 2 -subcmp 2 -g 300 -pass 1/2',
|
||||||
things to try: '-bf 2', '-flags qprd', '-flags mv0', '-flags skiprd'.
|
things to try: '-bf 2', '-flags qprd', '-flags mv0', '-flags skiprd'.
|
||||||
|
|
||||||
@section Which are good parameters for encoding high quality MPEG-1/MPEG-2?
|
@section Which are good parameters for encoding high quality MPEG-1/MPEG-2?
|
||||||
@@ -224,82 +286,24 @@ material, and try '-top 0/1' if the result looks really messed-up.
|
|||||||
If you have built FFmpeg with @code{./configure --enable-avisynth}
|
If you have built FFmpeg with @code{./configure --enable-avisynth}
|
||||||
(only possible on MinGW/Cygwin platforms),
|
(only possible on MinGW/Cygwin platforms),
|
||||||
then you may use any file that DirectShow can read as input.
|
then you may use any file that DirectShow can read as input.
|
||||||
|
(Be aware that this feature has been recently added,
|
||||||
|
so you will need to help yourself in case of problems.)
|
||||||
|
|
||||||
Just create an "input.avs" text file with this single line ...
|
Just create an "input.avs" text file with this single line ...
|
||||||
@example
|
@example
|
||||||
DirectShowSource("C:\path to your file\yourfile.asf")
|
DirectShowSource("C:\path to your file\yourfile.asf")
|
||||||
@end example
|
@end example
|
||||||
... and then feed that text file to ffmpeg:
|
... and then feed that text file to FFmpeg:
|
||||||
@example
|
@example
|
||||||
ffmpeg -i input.avs
|
ffmpeg -i input.avs
|
||||||
@end example
|
@end example
|
||||||
|
|
||||||
For ANY other help on Avisynth, please visit the
|
For ANY other help on Avisynth, please visit @url{http://www.avisynth.org/}.
|
||||||
@uref{http://www.avisynth.org/, Avisynth homepage}.
|
|
||||||
|
|
||||||
@section How can I join video files?
|
@section How can I join video files?
|
||||||
|
|
||||||
To "join" video files is quite ambiguous. The following list explains the
|
A few multimedia containers (MPEG-1, MPEG-2 PS, DV) allow to join video files by
|
||||||
different kinds of "joining" and points out how those are addressed in
|
merely concatenating them.
|
||||||
FFmpeg. To join video files may mean:
|
|
||||||
|
|
||||||
@itemize
|
|
||||||
|
|
||||||
@item
|
|
||||||
To put them one after the other: this is called to @emph{concatenate} them
|
|
||||||
(in short: concat) and is addressed
|
|
||||||
@ref{How can I concatenate video files, in this very faq}.
|
|
||||||
|
|
||||||
@item
|
|
||||||
To put them together in the same file, to let the user choose between the
|
|
||||||
different versions (example: different audio languages): this is called to
|
|
||||||
@emph{multiplex} them together (in short: mux), and is done by simply
|
|
||||||
invoking ffmpeg with several @option{-i} options.
|
|
||||||
|
|
||||||
@item
|
|
||||||
For audio, to put all channels together in a single stream (example: two
|
|
||||||
mono streams into one stereo stream): this is sometimes called to
|
|
||||||
@emph{merge} them, and can be done using the
|
|
||||||
@url{http://ffmpeg.org/ffmpeg-filters.html#amerge, @code{amerge}} filter.
|
|
||||||
|
|
||||||
@item
|
|
||||||
For audio, to play one on top of the other: this is called to @emph{mix}
|
|
||||||
them, and can be done by first merging them into a single stream and then
|
|
||||||
using the @url{http://ffmpeg.org/ffmpeg-filters.html#pan, @code{pan}} filter to mix
|
|
||||||
the channels at will.
|
|
||||||
|
|
||||||
@item
|
|
||||||
For video, to display both together, side by side or one on top of a part of
|
|
||||||
the other; it can be done using the
|
|
||||||
@url{http://ffmpeg.org/ffmpeg-filters.html#overlay, @code{overlay}} video filter.
|
|
||||||
|
|
||||||
@end itemize
|
|
||||||
|
|
||||||
@anchor{How can I concatenate video files}
|
|
||||||
@section How can I concatenate video files?
|
|
||||||
|
|
||||||
There are several solutions, depending on the exact circumstances.
|
|
||||||
|
|
||||||
@subsection Concatenating using the concat @emph{filter}
|
|
||||||
|
|
||||||
FFmpeg has a @url{http://ffmpeg.org/ffmpeg-filters.html#concat,
|
|
||||||
@code{concat}} filter designed specifically for that, with examples in the
|
|
||||||
documentation. This operation is recommended if you need to re-encode.
|
|
||||||
|
|
||||||
@subsection Concatenating using the concat @emph{demuxer}
|
|
||||||
|
|
||||||
FFmpeg has a @url{http://www.ffmpeg.org/ffmpeg-formats.html#concat,
|
|
||||||
@code{concat}} demuxer which you can use when you want to avoid a re-encode and
|
|
||||||
your format doesn't support file level concatenation.
|
|
||||||
|
|
||||||
@subsection Concatenating using the concat @emph{protocol} (file level)
|
|
||||||
|
|
||||||
FFmpeg has a @url{http://ffmpeg.org/ffmpeg-protocols.html#concat,
|
|
||||||
@code{concat}} protocol designed specifically for that, with examples in the
|
|
||||||
documentation.
|
|
||||||
|
|
||||||
A few multimedia containers (MPEG-1, MPEG-2 PS, DV) allow to concatenate
|
|
||||||
video by merely concatenating the files containing them.
|
|
||||||
|
|
||||||
Hence you may concatenate your multimedia files by first transcoding them to
|
Hence you may concatenate your multimedia files by first transcoding them to
|
||||||
these privileged formats, then using the humble @code{cat} command (or the
|
these privileged formats, then using the humble @code{cat} command (or the
|
||||||
@@ -307,38 +311,28 @@ equally humble @code{copy} under Windows), and finally transcoding back to your
|
|||||||
format of choice.
|
format of choice.
|
||||||
|
|
||||||
@example
|
@example
|
||||||
ffmpeg -i input1.avi -qscale:v 1 intermediate1.mpg
|
ffmpeg -i input1.avi -sameq intermediate1.mpg
|
||||||
ffmpeg -i input2.avi -qscale:v 1 intermediate2.mpg
|
ffmpeg -i input2.avi -sameq intermediate2.mpg
|
||||||
cat intermediate1.mpg intermediate2.mpg > intermediate_all.mpg
|
cat intermediate1.mpg intermediate2.mpg > intermediate_all.mpg
|
||||||
ffmpeg -i intermediate_all.mpg -qscale:v 2 output.avi
|
ffmpeg -i intermediate_all.mpg -sameq output.avi
|
||||||
@end example
|
@end example
|
||||||
|
|
||||||
Additionally, you can use the @code{concat} protocol instead of @code{cat} or
|
Notice that you should either use @code{-sameq} or set a reasonably high
|
||||||
@code{copy} which will avoid creation of a potentially huge intermediate file.
|
bitrate for your intermediate and output files, if you want to preserve
|
||||||
|
video quality.
|
||||||
|
|
||||||
@example
|
Also notice that you may avoid the huge intermediate files by taking advantage
|
||||||
ffmpeg -i input1.avi -qscale:v 1 intermediate1.mpg
|
of named pipes, should your platform support it:
|
||||||
ffmpeg -i input2.avi -qscale:v 1 intermediate2.mpg
|
|
||||||
ffmpeg -i concat:"intermediate1.mpg|intermediate2.mpg" -c copy intermediate_all.mpg
|
|
||||||
ffmpeg -i intermediate_all.mpg -qscale:v 2 output.avi
|
|
||||||
@end example
|
|
||||||
|
|
||||||
Note that you may need to escape the character "|" which is special for many
|
|
||||||
shells.
|
|
||||||
|
|
||||||
Another option is usage of named pipes, should your platform support it:
|
|
||||||
|
|
||||||
@example
|
@example
|
||||||
mkfifo intermediate1.mpg
|
mkfifo intermediate1.mpg
|
||||||
mkfifo intermediate2.mpg
|
mkfifo intermediate2.mpg
|
||||||
ffmpeg -i input1.avi -qscale:v 1 -y intermediate1.mpg < /dev/null &
|
ffmpeg -i input1.avi -sameq -y intermediate1.mpg < /dev/null &
|
||||||
ffmpeg -i input2.avi -qscale:v 1 -y intermediate2.mpg < /dev/null &
|
ffmpeg -i input2.avi -sameq -y intermediate2.mpg < /dev/null &
|
||||||
cat intermediate1.mpg intermediate2.mpg |\
|
cat intermediate1.mpg intermediate2.mpg |\
|
||||||
ffmpeg -f mpeg -i - -c:v mpeg4 -acodec libmp3lame output.avi
|
ffmpeg -f mpeg -i - -sameq -vcodec mpeg4 -acodec libmp3lame output.avi
|
||||||
@end example
|
@end example
|
||||||
|
|
||||||
@subsection Concatenating using raw audio and video
|
|
||||||
|
|
||||||
Similarly, the yuv4mpegpipe format, and the raw video, raw audio codecs also
|
Similarly, the yuv4mpegpipe format, and the raw video, raw audio codecs also
|
||||||
allow concatenation, and the transcoding step is almost lossless.
|
allow concatenation, and the transcoding step is almost lossless.
|
||||||
When using multiple yuv4mpegpipe(s), the first line needs to be discarded
|
When using multiple yuv4mpegpipe(s), the first line needs to be discarded
|
||||||
@@ -346,8 +340,7 @@ from all but the first stream. This can be accomplished by piping through
|
|||||||
@code{tail} as seen below. Note that when piping through @code{tail} you
|
@code{tail} as seen below. Note that when piping through @code{tail} you
|
||||||
must use command grouping, @code{@{ ;@}}, to background properly.
|
must use command grouping, @code{@{ ;@}}, to background properly.
|
||||||
|
|
||||||
For example, let's say we want to concatenate two FLV files into an
|
For example, let's say we want to join two FLV files into an output.flv file:
|
||||||
output.flv file:
|
|
||||||
|
|
||||||
@example
|
@example
|
||||||
mkfifo temp1.a
|
mkfifo temp1.a
|
||||||
@@ -364,90 +357,33 @@ cat temp1.a temp2.a > all.a &
|
|||||||
cat temp1.v temp2.v > all.v &
|
cat temp1.v temp2.v > all.v &
|
||||||
ffmpeg -f u16le -acodec pcm_s16le -ac 2 -ar 44100 -i all.a \
|
ffmpeg -f u16le -acodec pcm_s16le -ac 2 -ar 44100 -i all.a \
|
||||||
-f yuv4mpegpipe -i all.v \
|
-f yuv4mpegpipe -i all.v \
|
||||||
-y output.flv
|
-sameq -y output.flv
|
||||||
rm temp[12].[av] all.[av]
|
rm temp[12].[av] all.[av]
|
||||||
@end example
|
@end example
|
||||||
|
|
||||||
@section -profile option fails when encoding H.264 video with AAC audio
|
@section FFmpeg does not adhere to the -maxrate setting, some frames are bigger than maxrate/fps.
|
||||||
|
|
||||||
@command{ffmpeg} prints an error like
|
Read the MPEG spec about video buffer verifier.
|
||||||
|
|
||||||
@example
|
@section I want CBR, but no matter what I do frame sizes differ.
|
||||||
Undefined constant or missing '(' in 'baseline'
|
|
||||||
Unable to parse option value "baseline"
|
|
||||||
Error setting option profile to value baseline.
|
|
||||||
@end example
|
|
||||||
|
|
||||||
Short answer: write @option{-profile:v} instead of @option{-profile}.
|
You do not understand what CBR is, please read the MPEG spec.
|
||||||
|
Read about video buffer verifier and constant bitrate.
|
||||||
|
The one sentence summary is that there is a buffer and the input rate is
|
||||||
|
constant, the output can vary as needed.
|
||||||
|
|
||||||
Long answer: this happens because the @option{-profile} option can apply to both
|
@section How do I check if a stream is CBR?
|
||||||
video and audio. Specifically the AAC encoder also defines some profiles, none
|
|
||||||
of which are named @var{baseline}.
|
|
||||||
|
|
||||||
The solution is to apply the @option{-profile} option to the video stream only
|
To quote the MPEG-2 spec:
|
||||||
by using @url{http://ffmpeg.org/ffmpeg.html#Stream-specifiers-1, Stream specifiers}.
|
"There is no way to tell that a bitstream is constant bitrate without
|
||||||
Appending @code{:v} to it will do exactly that.
|
examining all of the vbv_delay values and making complicated computations."
|
||||||
|
|
||||||
@section Using @option{-f lavfi}, audio becomes mono for no apparent reason.
|
|
||||||
|
|
||||||
Use @option{-dumpgraph -} to find out exactly where the channel layout is
|
|
||||||
lost.
|
|
||||||
|
|
||||||
Most likely, it is through @code{auto-inserted aresample}. Try to understand
|
|
||||||
why the converting filter was needed at that place.
|
|
||||||
|
|
||||||
Just before the output is a likely place, as @option{-f lavfi} currently
|
|
||||||
only support packed S16.
|
|
||||||
|
|
||||||
Then insert the correct @code{aformat} explicitly in the filtergraph,
|
|
||||||
specifying the exact format.
|
|
||||||
|
|
||||||
@example
|
|
||||||
aformat=sample_fmts=s16:channel_layouts=stereo
|
|
||||||
@end example
|
|
||||||
|
|
||||||
@section Why does FFmpeg not see the subtitles in my VOB file?
|
|
||||||
|
|
||||||
VOB and a few other formats do not have a global header that describes
|
|
||||||
everything present in the file. Instead, applications are supposed to scan
|
|
||||||
the file to see what it contains. Since VOB files are frequently large, only
|
|
||||||
the beginning is scanned. If the subtitles happen only later in the file,
|
|
||||||
they will not be initally detected.
|
|
||||||
|
|
||||||
Some applications, including the @code{ffmpeg} command-line tool, can only
|
|
||||||
work with streams that were detected during the initial scan; streams that
|
|
||||||
are detected later are ignored.
|
|
||||||
|
|
||||||
The size of the initial scan is controlled by two options: @code{probesize}
|
|
||||||
(default ~5 Mo) and @code{analyzeduration} (default 5,000,000 µs = 5 s). For
|
|
||||||
the subtitle stream to be detected, both values must be large enough.
|
|
||||||
|
|
||||||
@section Why was the @command{ffmpeg} @option{-sameq} option removed? What to use instead?
|
|
||||||
|
|
||||||
The @option{-sameq} option meant "same quantizer", and made sense only in a
|
|
||||||
very limited set of cases. Unfortunately, a lot of people mistook it for
|
|
||||||
"same quality" and used it in places where it did not make sense: it had
|
|
||||||
roughly the expected visible effect, but achieved it in a very inefficient
|
|
||||||
way.
|
|
||||||
|
|
||||||
Each encoder has its own set of options to set the quality-vs-size balance,
|
|
||||||
use the options for the encoder you are using to set the quality level to a
|
|
||||||
point acceptable for your tastes. The most common options to do that are
|
|
||||||
@option{-qscale} and @option{-qmax}, but you should peruse the documentation
|
|
||||||
of the encoder you chose.
|
|
||||||
|
|
||||||
@chapter Development
|
@chapter Development
|
||||||
|
|
||||||
@section Are there examples illustrating how to use the FFmpeg libraries, particularly libavcodec and libavformat?
|
@section Are there examples illustrating how to use the FFmpeg libraries, particularly libavcodec and libavformat?
|
||||||
|
|
||||||
Yes. Check the @file{doc/examples} directory in the source
|
Yes. Read the Developers Guide of the FFmpeg documentation. Alternatively,
|
||||||
repository, also available online at:
|
|
||||||
@url{https://github.com/FFmpeg/FFmpeg/tree/master/doc/examples}.
|
|
||||||
|
|
||||||
Examples are also installed by default, usually in
|
|
||||||
@code{$PREFIX/share/ffmpeg/examples}.
|
|
||||||
|
|
||||||
Also you may read the Developers Guide of the FFmpeg documentation. Alternatively,
|
|
||||||
examine the source code for one of the many open source projects that
|
examine the source code for one of the many open source projects that
|
||||||
already incorporate FFmpeg at (@url{projects.html}).
|
already incorporate FFmpeg at (@url{projects.html}).
|
||||||
|
|
||||||
@@ -459,51 +395,64 @@ with @code{#ifdef}s related to the compiler.
|
|||||||
|
|
||||||
@section Is Microsoft Visual C++ supported?
|
@section Is Microsoft Visual C++ supported?
|
||||||
|
|
||||||
Yes. Please see the @uref{platform.html, Microsoft Visual C++}
|
No. Microsoft Visual C++ is not compliant to the C99 standard and does
|
||||||
section in the FFmpeg documentation.
|
not - among other things - support the inline assembly used in FFmpeg.
|
||||||
|
If you wish to use MSVC++ for your
|
||||||
|
project then you can link the MSVC++ code with libav* as long as
|
||||||
|
you compile the latter with a working C compiler. For more information, see
|
||||||
|
the @emph{Microsoft Visual C++ compatibility} section in the FFmpeg
|
||||||
|
documentation.
|
||||||
|
|
||||||
|
There have been efforts to make FFmpeg compatible with MSVC++ in the
|
||||||
|
past. However, they have all been rejected as too intrusive, especially
|
||||||
|
since MinGW does the job adequately. None of the core developers
|
||||||
|
work with MSVC++ and thus this item is low priority. Should you find
|
||||||
|
the silver bullet that solves this problem, feel free to shoot it at us.
|
||||||
|
|
||||||
|
We strongly recommend you to move over from MSVC++ to MinGW tools.
|
||||||
|
|
||||||
|
@section Can I use FFmpeg or libavcodec under Windows?
|
||||||
|
|
||||||
|
Yes, but the Cygwin or MinGW tools @emph{must} be used to compile FFmpeg.
|
||||||
|
Read the @emph{Windows} section in the FFmpeg documentation to find more
|
||||||
|
information.
|
||||||
|
|
||||||
|
To get help and instructions for building FFmpeg under Windows, check out
|
||||||
|
the FFmpeg Windows Help Forum at
|
||||||
|
@url{http://ffmpeg.arrozcru.org/}.
|
||||||
|
|
||||||
@section Can you add automake, libtool or autoconf support?
|
@section Can you add automake, libtool or autoconf support?
|
||||||
|
|
||||||
No. These tools are too bloated and they complicate the build.
|
No. These tools are too bloated and they complicate the build.
|
||||||
|
|
||||||
@section Why not rewrite FFmpeg in object-oriented C++?
|
@section Why not rewrite ffmpeg in object-oriented C++?
|
||||||
|
|
||||||
FFmpeg is already organized in a highly modular manner and does not need to
|
FFmpeg is already organized in a highly modular manner and does not need to
|
||||||
be rewritten in a formal object language. Further, many of the developers
|
be rewritten in a formal object language. Further, many of the developers
|
||||||
favor straight C; it works for them. For more arguments on this matter,
|
favor straight C; it works for them. For more arguments on this matter,
|
||||||
read @uref{http://www.tux.org/lkml/#s15, "Programming Religion"}.
|
read "Programming Religion" at (@url{http://www.tux.org/lkml/#s15}).
|
||||||
|
|
||||||
@section Why are the ffmpeg programs devoid of debugging symbols?
|
@section Why are the ffmpeg programs devoid of debugging symbols?
|
||||||
|
|
||||||
The build process creates ffmpeg_g, ffplay_g, etc. which contain full debug
|
The build process creates ffmpeg_g, ffplay_g, etc. which contain full debug
|
||||||
information. Those binaries are stripped to create ffmpeg, ffplay, etc. If
|
information. Those binaries are stripped to create ffmpeg, ffplay, etc. If
|
||||||
you need the debug information, use the *_g versions.
|
you need the debug information, used the *_g versions.
|
||||||
|
|
||||||
@section I do not like the LGPL, can I contribute code under the GPL instead?
|
@section I do not like the LGPL, can I contribute code under the GPL instead?
|
||||||
|
|
||||||
Yes, as long as the code is optional and can easily and cleanly be placed
|
Yes, as long as the code is optional and can easily and cleanly be placed
|
||||||
under #if CONFIG_GPL without breaking anything. So, for example, a new codec
|
under #if CONFIG_GPL without breaking anything. So for example a new codec
|
||||||
or filter would be OK under GPL while a bug fix to LGPL code would not.
|
or filter would be OK under GPL while a bug fix to LGPL code would not.
|
||||||
|
|
||||||
@section I'm using FFmpeg from within my C application but the linker complains about missing symbols from the libraries themselves.
|
@section I want to compile xyz.c alone but my compiler produced many errors.
|
||||||
|
|
||||||
FFmpeg builds static libraries by default. In static libraries, dependencies
|
Common code is in its own files in libav* and is used by the individual
|
||||||
are not handled. That has two consequences. First, you must specify the
|
codecs. They will not work without the common parts, you have to compile
|
||||||
libraries in dependency order: @code{-lavdevice} must come before
|
the whole libav*. If you wish, disable some parts with configure switches.
|
||||||
@code{-lavformat}, @code{-lavutil} must come after everything else, etc.
|
You can also try to hack it and remove more, but if you had problems fixing
|
||||||
Second, external libraries that are used in FFmpeg have to be specified too.
|
the compilation failure then you are probably not qualified for this.
|
||||||
|
|
||||||
An easy way to get the full list of required libraries in dependency order
|
@section I'm using libavcodec from within my C++ application but the linker complains about missing symbols which seem to be available.
|
||||||
is to use @code{pkg-config}.
|
|
||||||
|
|
||||||
@example
|
|
||||||
c99 -o program program.c $(pkg-config --cflags --libs libavformat libavcodec)
|
|
||||||
@end example
|
|
||||||
|
|
||||||
See @file{doc/example/Makefile} and @file{doc/example/pc-uninstalled} for
|
|
||||||
more details.
|
|
||||||
|
|
||||||
@section I'm using FFmpeg from within my C++ application but the linker complains about missing symbols which seem to be available.
|
|
||||||
|
|
||||||
FFmpeg is a pure C project, so to use the libraries within your C++ application
|
FFmpeg is a pure C project, so to use the libraries within your C++ application
|
||||||
you need to explicitly state that you are using a C library. You can do this by
|
you need to explicitly state that you are using a C library. You can do this by
|
||||||
@@ -511,15 +460,23 @@ encompassing your FFmpeg includes using @code{extern "C"}.
|
|||||||
|
|
||||||
See @url{http://www.parashift.com/c++-faq-lite/mixing-c-and-cpp.html#faq-32.3}
|
See @url{http://www.parashift.com/c++-faq-lite/mixing-c-and-cpp.html#faq-32.3}
|
||||||
|
|
||||||
@section I'm using libavutil from within my C++ application but the compiler complains about 'UINT64_C' was not declared in this scope
|
|
||||||
|
|
||||||
FFmpeg is a pure C project using C99 math features, in order to enable C++
|
|
||||||
to use them you have to append -D__STDC_CONSTANT_MACROS to your CXXFLAGS
|
|
||||||
|
|
||||||
@section I have a file in memory / a API different from *open/*read/ libc how do I use it with libavformat?
|
@section I have a file in memory / a API different from *open/*read/ libc how do I use it with libavformat?
|
||||||
|
|
||||||
You have to create a custom AVIOContext using @code{avio_alloc_context},
|
You have to implement a URLProtocol, see libavformat/file.c in FFmpeg
|
||||||
see @file{libavformat/aviobuf.c} in FFmpeg and @file{libmpdemux/demux_lavf.c} in MPlayer or MPlayer2 sources.
|
and libmpdemux/demux_lavf.c in MPlayer sources.
|
||||||
|
|
||||||
|
@section I get "No compatible shell script interpreter found." in MSys.
|
||||||
|
|
||||||
|
The standard MSys bash (2.04) is broken. You need to install 2.05 or later.
|
||||||
|
|
||||||
|
@section I get "./configure: line <xxx>: pr: command not found" in MSys.
|
||||||
|
|
||||||
|
The standard MSys install doesn't come with pr. You need to get it from the coreutils package.
|
||||||
|
|
||||||
|
@section I tried to pass RTP packets into a decoder, but it doesn't work.
|
||||||
|
|
||||||
|
RTP is a container format like any other, you must first depacketize the
|
||||||
|
codec frames/samples stored in RTP and then feed to the decoder.
|
||||||
|
|
||||||
@section Where can I find libav* headers for Pascal/Delphi?
|
@section Where can I find libav* headers for Pascal/Delphi?
|
||||||
|
|
||||||
@@ -527,7 +484,7 @@ see @url{http://www.iversenit.dk/dev/ffmpeg-headers/}
|
|||||||
|
|
||||||
@section Where is the documentation about ffv1, msmpeg4, asv1, 4xm?
|
@section Where is the documentation about ffv1, msmpeg4, asv1, 4xm?
|
||||||
|
|
||||||
see @url{http://www.ffmpeg.org/~michael/}
|
see @url{http://svn.ffmpeg.org/michael/trunk/docs/}
|
||||||
|
|
||||||
@section How do I feed H.263-RTP (and other codecs in RTP) to libavcodec?
|
@section How do I feed H.263-RTP (and other codecs in RTP) to libavcodec?
|
||||||
|
|
||||||
@@ -535,24 +492,12 @@ Even if peculiar since it is network oriented, RTP is a container like any
|
|||||||
other. You have to @emph{demux} RTP before feeding the payload to libavcodec.
|
other. You have to @emph{demux} RTP before feeding the payload to libavcodec.
|
||||||
In this specific case please look at RFC 4629 to see how it should be done.
|
In this specific case please look at RFC 4629 to see how it should be done.
|
||||||
|
|
||||||
@section AVStream.r_frame_rate is wrong, it is much larger than the frame rate.
|
@section AVStream.r_frame_rate is wrong, it is much larger than the framerate.
|
||||||
|
|
||||||
r_frame_rate is NOT the average frame rate, it is the smallest frame rate
|
r_frame_rate is NOT the average framerate, it is the smallest framerate
|
||||||
that can accurately represent all timestamps. So no, it is not
|
that can accurately represent all timestamps. So no, it is not
|
||||||
wrong if it is larger than the average!
|
wrong if it is larger than the average!
|
||||||
For example, if you have mixed 25 and 30 fps content, then r_frame_rate
|
For example, if you have mixed 25 and 30 fps content, then r_frame_rate
|
||||||
will be 150.
|
will be 150.
|
||||||
|
|
||||||
@section Why is @code{make fate} not running all tests?
|
|
||||||
|
|
||||||
Make sure you have the fate-suite samples and the @code{SAMPLES} Make variable
|
|
||||||
or @code{FATE_SAMPLES} environment variable or the @code{--samples}
|
|
||||||
@command{configure} option is set to the right path.
|
|
||||||
|
|
||||||
@section Why is @code{make fate} not finding the samples?
|
|
||||||
|
|
||||||
Do you happen to have a @code{~} character in the samples path to indicate a
|
|
||||||
home directory? The value is used in ways where the shell cannot expand it,
|
|
||||||
causing FATE to not find files. Just replace @code{~} by the full path.
|
|
||||||
|
|
||||||
@bye
|
@bye
|
||||||
|
|||||||
201
doc/fate.texi
201
doc/fate.texi
@@ -1,201 +0,0 @@
|
|||||||
\input texinfo @c -*- texinfo -*-
|
|
||||||
|
|
||||||
@settitle FFmpeg Automated Testing Environment
|
|
||||||
@titlepage
|
|
||||||
@center @titlefont{FFmpeg Automated Testing Environment}
|
|
||||||
@end titlepage
|
|
||||||
|
|
||||||
@node Top
|
|
||||||
@top
|
|
||||||
|
|
||||||
@contents
|
|
||||||
|
|
||||||
@chapter Introduction
|
|
||||||
|
|
||||||
FATE is an extended regression suite on the client-side and a means
|
|
||||||
for results aggregation and presentation on the server-side.
|
|
||||||
|
|
||||||
The first part of this document explains how you can use FATE from
|
|
||||||
your FFmpeg source directory to test your ffmpeg binary. The second
|
|
||||||
part describes how you can run FATE to submit the results to FFmpeg's
|
|
||||||
FATE server.
|
|
||||||
|
|
||||||
In any way you can have a look at the publicly viewable FATE results
|
|
||||||
by visiting this website:
|
|
||||||
|
|
||||||
@url{http://fate.ffmpeg.org/}
|
|
||||||
|
|
||||||
This is especially recommended for all people contributing source
|
|
||||||
code to FFmpeg, as it can be seen if some test on some platform broke
|
|
||||||
with their recent contribution. This usually happens on the platforms
|
|
||||||
the developers could not test on.
|
|
||||||
|
|
||||||
The second part of this document describes how you can run FATE to
|
|
||||||
submit your results to FFmpeg's FATE server. If you want to submit your
|
|
||||||
results be sure to check that your combination of CPU, OS and compiler
|
|
||||||
is not already listed on the above mentioned website.
|
|
||||||
|
|
||||||
In the third part you can find a comprehensive listing of FATE makefile
|
|
||||||
targets and variables.
|
|
||||||
|
|
||||||
|
|
||||||
@chapter Using FATE from your FFmpeg source directory
|
|
||||||
|
|
||||||
If you want to run FATE on your machine you need to have the samples
|
|
||||||
in place. You can get the samples via the build target fate-rsync.
|
|
||||||
Use this command from the top-level source directory:
|
|
||||||
|
|
||||||
@example
|
|
||||||
make fate-rsync SAMPLES=fate-suite/
|
|
||||||
make fate SAMPLES=fate-suite/
|
|
||||||
@end example
|
|
||||||
|
|
||||||
The above commands set the samples location by passing a makefile
|
|
||||||
variable via command line. It is also possible to set the samples
|
|
||||||
location at source configuration time by invoking configure with
|
|
||||||
`--samples=<path to the samples directory>'. Afterwards you can
|
|
||||||
invoke the makefile targets without setting the SAMPLES makefile
|
|
||||||
variable. This is illustrated by the following commands:
|
|
||||||
|
|
||||||
@example
|
|
||||||
./configure --samples=fate-suite/
|
|
||||||
make fate-rsync
|
|
||||||
make fate
|
|
||||||
@end example
|
|
||||||
|
|
||||||
Yet another way to tell FATE about the location of the sample
|
|
||||||
directory is by making sure the environment variable FATE_SAMPLES
|
|
||||||
contains the path to your samples directory. This can be achieved
|
|
||||||
by e.g. putting that variable in your shell profile or by setting
|
|
||||||
it in your interactive session.
|
|
||||||
|
|
||||||
@example
|
|
||||||
FATE_SAMPLES=fate-suite/ make fate
|
|
||||||
@end example
|
|
||||||
|
|
||||||
@float NOTE
|
|
||||||
Do not put a '~' character in the samples path to indicate a home
|
|
||||||
directory. Because of shell nuances, this will cause FATE to fail.
|
|
||||||
@end float
|
|
||||||
|
|
||||||
To use a custom wrapper to run the test, pass @option{--target-exec} to
|
|
||||||
@command{configure} or set the @var{TARGET_EXEC} Make variable.
|
|
||||||
|
|
||||||
|
|
||||||
@chapter Submitting the results to the FFmpeg result aggregation server
|
|
||||||
|
|
||||||
To submit your results to the server you should run fate through the
|
|
||||||
shell script @file{tests/fate.sh} from the FFmpeg sources. This script needs
|
|
||||||
to be invoked with a configuration file as its first argument.
|
|
||||||
|
|
||||||
@example
|
|
||||||
tests/fate.sh /path/to/fate_config
|
|
||||||
@end example
|
|
||||||
|
|
||||||
A configuration file template with comments describing the individual
|
|
||||||
configuration variables can be found at @file{doc/fate_config.sh.template}.
|
|
||||||
|
|
||||||
@ifhtml
|
|
||||||
The mentioned configuration template is also available here:
|
|
||||||
@verbatiminclude fate_config.sh.template
|
|
||||||
@end ifhtml
|
|
||||||
|
|
||||||
Create a configuration that suits your needs, based on the configuration
|
|
||||||
template. The `slot' configuration variable can be any string that is not
|
|
||||||
yet used, but it is suggested that you name it adhering to the following
|
|
||||||
pattern <arch>-<os>-<compiler>-<compiler version>. The configuration file
|
|
||||||
itself will be sourced in a shell script, therefore all shell features may
|
|
||||||
be used. This enables you to setup the environment as you need it for your
|
|
||||||
build.
|
|
||||||
|
|
||||||
For your first test runs the `fate_recv' variable should be empty or
|
|
||||||
commented out. This will run everything as normal except that it will omit
|
|
||||||
the submission of the results to the server. The following files should be
|
|
||||||
present in $workdir as specified in the configuration file:
|
|
||||||
|
|
||||||
@itemize
|
|
||||||
@item configure.log
|
|
||||||
@item compile.log
|
|
||||||
@item test.log
|
|
||||||
@item report
|
|
||||||
@item version
|
|
||||||
@end itemize
|
|
||||||
|
|
||||||
When you have everything working properly you can create an SSH key pair
|
|
||||||
and send the public key to the FATE server administrator who can be contacted
|
|
||||||
at the email address @email{fate-admin@@ffmpeg.org}.
|
|
||||||
|
|
||||||
Configure your SSH client to use public key authentication with that key
|
|
||||||
when connecting to the FATE server. Also do not forget to check the identity
|
|
||||||
of the server and to accept its host key. This can usually be achieved by
|
|
||||||
running your SSH client manually and killing it after you accepted the key.
|
|
||||||
The FATE server's fingerprint is:
|
|
||||||
|
|
||||||
@table @option
|
|
||||||
@item RSA
|
|
||||||
d3:f1:83:97:a4:75:2b:a6:fb:d6:e8:aa:81:93:97:51
|
|
||||||
@item ECDSA
|
|
||||||
76:9f:68:32:04:1e:d5:d4:ec:47:3f:dc:fc:18:17:86
|
|
||||||
@end table
|
|
||||||
|
|
||||||
If you have problems connecting to the FATE server, it may help to try out
|
|
||||||
the @command{ssh} command with one or more @option{-v} options. You should
|
|
||||||
get detailed output concerning your SSH configuration and the authentication
|
|
||||||
process.
|
|
||||||
|
|
||||||
The only thing left is to automate the execution of the fate.sh script and
|
|
||||||
the synchronisation of the samples directory.
|
|
||||||
|
|
||||||
|
|
||||||
@chapter FATE makefile targets and variables
|
|
||||||
|
|
||||||
@section Makefile targets
|
|
||||||
|
|
||||||
@table @option
|
|
||||||
@item fate-rsync
|
|
||||||
Download/synchronize sample files to the configured samples directory.
|
|
||||||
|
|
||||||
@item fate-list
|
|
||||||
Will list all fate/regression test targets.
|
|
||||||
|
|
||||||
@item fate
|
|
||||||
Run the FATE test suite (requires the fate-suite dataset).
|
|
||||||
@end table
|
|
||||||
|
|
||||||
@section Makefile variables
|
|
||||||
|
|
||||||
@table @option
|
|
||||||
@item V
|
|
||||||
Verbosity level, can be set to 0, 1 or 2.
|
|
||||||
@itemize
|
|
||||||
@item 0: show just the test arguments
|
|
||||||
@item 1: show just the command used in the test
|
|
||||||
@item 2: show everything
|
|
||||||
@end itemize
|
|
||||||
|
|
||||||
@item SAMPLES
|
|
||||||
Specify or override the path to the FATE samples at make time, it has a
|
|
||||||
meaning only while running the regression tests.
|
|
||||||
|
|
||||||
@item THREADS
|
|
||||||
Specify how many threads to use while running regression tests, it is
|
|
||||||
quite useful to detect thread-related regressions.
|
|
||||||
@item THREAD_TYPE
|
|
||||||
Specify which threading strategy test, either @var{slice} or @var{frame},
|
|
||||||
by default @var{slice+frame}
|
|
||||||
@item CPUFLAGS
|
|
||||||
Specify CPU flags.
|
|
||||||
@item TARGET_EXEC
|
|
||||||
Specify or override the wrapper used to run the tests.
|
|
||||||
The @var{TARGET_EXEC} option provides a way to run FATE wrapped in
|
|
||||||
@command{valgrind}, @command{qemu-user} or @command{wine} or on remote targets
|
|
||||||
through @command{ssh}.
|
|
||||||
@item GEN
|
|
||||||
Set to @var{1} to generate the missing or mismatched references.
|
|
||||||
@end table
|
|
||||||
|
|
||||||
@section Examples
|
|
||||||
|
|
||||||
@example
|
|
||||||
make V=1 SAMPLES=/var/fate/samples THREADS=2 CPUFLAGS=mmx fate
|
|
||||||
@end example
|
|
||||||
@@ -1,29 +0,0 @@
|
|||||||
slot= # some unique identifier
|
|
||||||
repo=git://source.ffmpeg.org/ffmpeg.git # the source repository
|
|
||||||
samples= # path to samples directory
|
|
||||||
workdir= # directory in which to do all the work
|
|
||||||
#fate_recv="ssh -T fate@fate.ffmpeg.org" # command to submit report
|
|
||||||
comment= # optional description
|
|
||||||
build_only= # set to "yes" for a compile-only instance that skips tests
|
|
||||||
|
|
||||||
# the following are optional and map to configure options
|
|
||||||
arch=
|
|
||||||
cpu=
|
|
||||||
cross_prefix=
|
|
||||||
as=
|
|
||||||
cc=
|
|
||||||
ld=
|
|
||||||
target_os=
|
|
||||||
sysroot=
|
|
||||||
target_exec=
|
|
||||||
target_path=
|
|
||||||
target_samples=
|
|
||||||
extra_cflags=
|
|
||||||
extra_ldflags=
|
|
||||||
extra_libs=
|
|
||||||
extra_conf= # extra configure options not covered above
|
|
||||||
|
|
||||||
#make= # name of GNU make if not 'make'
|
|
||||||
makeopts= # extra options passed to 'make'
|
|
||||||
#tar= # command to create a tar archive from its arguments on stdout,
|
|
||||||
# defaults to 'tar c'
|
|
||||||
@@ -1,45 +0,0 @@
|
|||||||
\input texinfo @c -*- texinfo -*-
|
|
||||||
|
|
||||||
@settitle FFmpeg Bitstream Filters Documentation
|
|
||||||
@titlepage
|
|
||||||
@center @titlefont{FFmpeg Bitstream Filters Documentation}
|
|
||||||
@end titlepage
|
|
||||||
|
|
||||||
@top
|
|
||||||
|
|
||||||
@contents
|
|
||||||
|
|
||||||
@chapter Description
|
|
||||||
@c man begin DESCRIPTION
|
|
||||||
|
|
||||||
This document describes the bitstream filters provided by the
|
|
||||||
libavcodec library.
|
|
||||||
|
|
||||||
A bitstream filter operates on the encoded stream data, and performs
|
|
||||||
bitstream level modifications without performing decoding.
|
|
||||||
|
|
||||||
@c man end DESCRIPTION
|
|
||||||
|
|
||||||
@include bitstream_filters.texi
|
|
||||||
|
|
||||||
@chapter See Also
|
|
||||||
|
|
||||||
@ifhtml
|
|
||||||
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
|
|
||||||
@url{libavcodec.html,libavcodec}
|
|
||||||
@end ifhtml
|
|
||||||
|
|
||||||
@ifnothtml
|
|
||||||
ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1), libavcodec(3)
|
|
||||||
@end ifnothtml
|
|
||||||
|
|
||||||
@include authors.texi
|
|
||||||
|
|
||||||
@ignore
|
|
||||||
|
|
||||||
@setfilename ffmpeg-bitstream-filters
|
|
||||||
@settitle FFmpeg bitstream filters
|
|
||||||
|
|
||||||
@end ignore
|
|
||||||
|
|
||||||
@bye
|
|
||||||
@@ -1,42 +0,0 @@
|
|||||||
\input texinfo @c -*- texinfo -*-
|
|
||||||
|
|
||||||
@settitle FFmpeg Codecs Documentation
|
|
||||||
@titlepage
|
|
||||||
@center @titlefont{FFmpeg Codecs Documentation}
|
|
||||||
@end titlepage
|
|
||||||
|
|
||||||
@top
|
|
||||||
|
|
||||||
@contents
|
|
||||||
|
|
||||||
@chapter Description
|
|
||||||
@c man begin DESCRIPTION
|
|
||||||
|
|
||||||
This document describes the codecs (decoders and encoders) provided by
|
|
||||||
the libavcodec library.
|
|
||||||
|
|
||||||
@c man end DESCRIPTION
|
|
||||||
|
|
||||||
@include codecs.texi
|
|
||||||
|
|
||||||
@chapter See Also
|
|
||||||
|
|
||||||
@ifhtml
|
|
||||||
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
|
|
||||||
@url{libavcodec.html,libavcodec}
|
|
||||||
@end ifhtml
|
|
||||||
|
|
||||||
@ifnothtml
|
|
||||||
ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1), libavcodec(3)
|
|
||||||
@end ifnothtml
|
|
||||||
|
|
||||||
@include authors.texi
|
|
||||||
|
|
||||||
@ignore
|
|
||||||
|
|
||||||
@setfilename ffmpeg-codecs
|
|
||||||
@settitle FFmpeg codecs
|
|
||||||
|
|
||||||
@end ignore
|
|
||||||
|
|
||||||
@bye
|
|
||||||
@@ -1,42 +0,0 @@
|
|||||||
\input texinfo @c -*- texinfo -*-
|
|
||||||
|
|
||||||
@settitle FFmpeg Devices Documentation
|
|
||||||
@titlepage
|
|
||||||
@center @titlefont{FFmpeg Devices Documentation}
|
|
||||||
@end titlepage
|
|
||||||
|
|
||||||
@top
|
|
||||||
|
|
||||||
@contents
|
|
||||||
|
|
||||||
@chapter Description
|
|
||||||
@c man begin DESCRIPTION
|
|
||||||
|
|
||||||
This document describes the input and output devices provided by the
|
|
||||||
libavdevice library.
|
|
||||||
|
|
||||||
@c man end DESCRIPTION
|
|
||||||
|
|
||||||
@include devices.texi
|
|
||||||
|
|
||||||
@chapter See Also
|
|
||||||
|
|
||||||
@ifhtml
|
|
||||||
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
|
|
||||||
@url{libavdevice.html,libavdevice}
|
|
||||||
@end ifhtml
|
|
||||||
|
|
||||||
@ifnothtml
|
|
||||||
ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1), libavdevice(3)
|
|
||||||
@end ifnothtml
|
|
||||||
|
|
||||||
@include authors.texi
|
|
||||||
|
|
||||||
@ignore
|
|
||||||
|
|
||||||
@setfilename ffmpeg-devices
|
|
||||||
@settitle FFmpeg devices
|
|
||||||
|
|
||||||
@end ignore
|
|
||||||
|
|
||||||
@bye
|
|
||||||
956
doc/ffmpeg-doc.texi
Normal file
956
doc/ffmpeg-doc.texi
Normal file
@@ -0,0 +1,956 @@
|
|||||||
|
\input texinfo @c -*- texinfo -*-
|
||||||
|
|
||||||
|
@settitle FFmpeg Documentation
|
||||||
|
@titlepage
|
||||||
|
@sp 7
|
||||||
|
@center @titlefont{FFmpeg Documentation}
|
||||||
|
@sp 3
|
||||||
|
@end titlepage
|
||||||
|
|
||||||
|
|
||||||
|
@chapter Introduction
|
||||||
|
|
||||||
|
FFmpeg is a very fast video and audio converter. It can also grab from
|
||||||
|
a live audio/video source.
|
||||||
|
|
||||||
|
The command line interface is designed to be intuitive, in the sense
|
||||||
|
that FFmpeg tries to figure out all parameters that can possibly be
|
||||||
|
derived automatically. You usually only have to specify the target
|
||||||
|
bitrate you want.
|
||||||
|
|
||||||
|
FFmpeg can also convert from any sample rate to any other, and resize
|
||||||
|
video on the fly with a high quality polyphase filter.
|
||||||
|
|
||||||
|
@chapter Quick Start
|
||||||
|
|
||||||
|
@c man begin EXAMPLES
|
||||||
|
@section Video and Audio grabbing
|
||||||
|
|
||||||
|
FFmpeg can grab video and audio from devices given that you specify the input
|
||||||
|
format and device.
|
||||||
|
|
||||||
|
@example
|
||||||
|
ffmpeg -f oss -i /dev/dsp -f video4linux2 -i /dev/video0 /tmp/out.mpg
|
||||||
|
@end example
|
||||||
|
|
||||||
|
Note that you must activate the right video source and channel before
|
||||||
|
launching FFmpeg with any TV viewer such as xawtv
|
||||||
|
(@url{http://linux.bytesex.org/xawtv/}) by Gerd Knorr. You also
|
||||||
|
have to set the audio recording levels correctly with a
|
||||||
|
standard mixer.
|
||||||
|
|
||||||
|
@section X11 grabbing
|
||||||
|
|
||||||
|
FFmpeg can grab the X11 display.
|
||||||
|
|
||||||
|
@example
|
||||||
|
ffmpeg -f x11grab -s cif -i :0.0 /tmp/out.mpg
|
||||||
|
@end example
|
||||||
|
|
||||||
|
0.0 is display.screen number of your X11 server, same as
|
||||||
|
the DISPLAY environment variable.
|
||||||
|
|
||||||
|
@example
|
||||||
|
ffmpeg -f x11grab -s cif -i :0.0+10,20 /tmp/out.mpg
|
||||||
|
@end example
|
||||||
|
|
||||||
|
0.0 is display.screen number of your X11 server, same as the DISPLAY environment
|
||||||
|
variable. 10 is the x-offset and 20 the y-offset for the grabbing.
|
||||||
|
|
||||||
|
@section Video and Audio file format conversion
|
||||||
|
|
||||||
|
* FFmpeg can use any supported file format and protocol as input:
|
||||||
|
|
||||||
|
Examples:
|
||||||
|
|
||||||
|
* You can use YUV files as input:
|
||||||
|
|
||||||
|
@example
|
||||||
|
ffmpeg -i /tmp/test%d.Y /tmp/out.mpg
|
||||||
|
@end example
|
||||||
|
|
||||||
|
It will use the files:
|
||||||
|
@example
|
||||||
|
/tmp/test0.Y, /tmp/test0.U, /tmp/test0.V,
|
||||||
|
/tmp/test1.Y, /tmp/test1.U, /tmp/test1.V, etc...
|
||||||
|
@end example
|
||||||
|
|
||||||
|
The Y files use twice the resolution of the U and V files. They are
|
||||||
|
raw files, without header. They can be generated by all decent video
|
||||||
|
decoders. You must specify the size of the image with the @option{-s} option
|
||||||
|
if FFmpeg cannot guess it.
|
||||||
|
|
||||||
|
* You can input from a raw YUV420P file:
|
||||||
|
|
||||||
|
@example
|
||||||
|
ffmpeg -i /tmp/test.yuv /tmp/out.avi
|
||||||
|
@end example
|
||||||
|
|
||||||
|
test.yuv is a file containing raw YUV planar data. Each frame is composed
|
||||||
|
of the Y plane followed by the U and V planes at half vertical and
|
||||||
|
horizontal resolution.
|
||||||
|
|
||||||
|
* You can output to a raw YUV420P file:
|
||||||
|
|
||||||
|
@example
|
||||||
|
ffmpeg -i mydivx.avi hugefile.yuv
|
||||||
|
@end example
|
||||||
|
|
||||||
|
* You can set several input files and output files:
|
||||||
|
|
||||||
|
@example
|
||||||
|
ffmpeg -i /tmp/a.wav -s 640x480 -i /tmp/a.yuv /tmp/a.mpg
|
||||||
|
@end example
|
||||||
|
|
||||||
|
Converts the audio file a.wav and the raw YUV video file a.yuv
|
||||||
|
to MPEG file a.mpg.
|
||||||
|
|
||||||
|
* You can also do audio and video conversions at the same time:
|
||||||
|
|
||||||
|
@example
|
||||||
|
ffmpeg -i /tmp/a.wav -ar 22050 /tmp/a.mp2
|
||||||
|
@end example
|
||||||
|
|
||||||
|
Converts a.wav to MPEG audio at 22050 Hz sample rate.
|
||||||
|
|
||||||
|
* You can encode to several formats at the same time and define a
|
||||||
|
mapping from input stream to output streams:
|
||||||
|
|
||||||
|
@example
|
||||||
|
ffmpeg -i /tmp/a.wav -ab 64k /tmp/a.mp2 -ab 128k /tmp/b.mp2 -map 0:0 -map 0:0
|
||||||
|
@end example
|
||||||
|
|
||||||
|
Converts a.wav to a.mp2 at 64 kbits and to b.mp2 at 128 kbits. '-map
|
||||||
|
file:index' specifies which input stream is used for each output
|
||||||
|
stream, in the order of the definition of output streams.
|
||||||
|
|
||||||
|
* You can transcode decrypted VOBs:
|
||||||
|
|
||||||
|
@example
|
||||||
|
ffmpeg -i snatch_1.vob -f avi -vcodec mpeg4 -b 800k -g 300 -bf 2 -acodec libmp3lame -ab 128k snatch.avi
|
||||||
|
@end example
|
||||||
|
|
||||||
|
This is a typical DVD ripping example; the input is a VOB file, the
|
||||||
|
output an AVI file with MPEG-4 video and MP3 audio. Note that in this
|
||||||
|
command we use B-frames so the MPEG-4 stream is DivX5 compatible, and
|
||||||
|
GOP size is 300 which means one intra frame every 10 seconds for 29.97fps
|
||||||
|
input video. Furthermore, the audio stream is MP3-encoded so you need
|
||||||
|
to enable LAME support by passing @code{--enable-libmp3lame} to configure.
|
||||||
|
The mapping is particularly useful for DVD transcoding
|
||||||
|
to get the desired audio language.
|
||||||
|
|
||||||
|
NOTE: To see the supported input formats, use @code{ffmpeg -formats}.
|
||||||
|
|
||||||
|
* You can extract images from a video, or create a video from many images:
|
||||||
|
|
||||||
|
For extracting images from a video:
|
||||||
|
@example
|
||||||
|
ffmpeg -i foo.avi -r 1 -s WxH -f image2 foo-%03d.jpeg
|
||||||
|
@end example
|
||||||
|
|
||||||
|
This will extract one video frame per second from the video and will
|
||||||
|
output them in files named @file{foo-001.jpeg}, @file{foo-002.jpeg},
|
||||||
|
etc. Images will be rescaled to fit the new WxH values.
|
||||||
|
|
||||||
|
If you want to extract just a limited number of frames, you can use the
|
||||||
|
above command in combination with the -vframes or -t option, or in
|
||||||
|
combination with -ss to start extracting from a certain point in time.
|
||||||
|
|
||||||
|
For creating a video from many images:
|
||||||
|
@example
|
||||||
|
ffmpeg -f image2 -i foo-%03d.jpeg -r 12 -s WxH foo.avi
|
||||||
|
@end example
|
||||||
|
|
||||||
|
The syntax @code{foo-%03d.jpeg} specifies to use a decimal number
|
||||||
|
composed of three digits padded with zeroes to express the sequence
|
||||||
|
number. It is the same syntax supported by the C printf function, but
|
||||||
|
only formats accepting a normal integer are suitable.
|
||||||
|
|
||||||
|
* You can put many streams of the same type in the output:
|
||||||
|
|
||||||
|
@example
|
||||||
|
ffmpeg -i test1.avi -i test2.avi -vcodec copy -acodec copy -vcodec copy -acodec copy test12.avi -newvideo -newaudio
|
||||||
|
@end example
|
||||||
|
|
||||||
|
In addition to the first video and audio streams, the resulting
|
||||||
|
output file @file{test12.avi} will contain the second video
|
||||||
|
and the second audio stream found in the input streams list.
|
||||||
|
|
||||||
|
The @code{-newvideo}, @code{-newaudio} and @code{-newsubtitle}
|
||||||
|
options have to be specified immediately after the name of the output
|
||||||
|
file to which you want to add them.
|
||||||
|
@c man end
|
||||||
|
|
||||||
|
@chapter Invocation
|
||||||
|
|
||||||
|
@section Syntax
|
||||||
|
|
||||||
|
The generic syntax is:
|
||||||
|
|
||||||
|
@example
|
||||||
|
@c man begin SYNOPSIS
|
||||||
|
ffmpeg [[infile options][@option{-i} @var{infile}]]... @{[outfile options] @var{outfile}@}...
|
||||||
|
@c man end
|
||||||
|
@end example
|
||||||
|
@c man begin DESCRIPTION
|
||||||
|
As a general rule, options are applied to the next specified
|
||||||
|
file. Therefore, order is important, and you can have the same
|
||||||
|
option on the command line multiple times. Each occurrence is
|
||||||
|
then applied to the next input or output file.
|
||||||
|
|
||||||
|
* To set the video bitrate of the output file to 64kbit/s:
|
||||||
|
@example
|
||||||
|
ffmpeg -i input.avi -b 64k output.avi
|
||||||
|
@end example
|
||||||
|
|
||||||
|
* To force the frame rate of the output file to 24 fps:
|
||||||
|
@example
|
||||||
|
ffmpeg -i input.avi -r 24 output.avi
|
||||||
|
@end example
|
||||||
|
|
||||||
|
* To force the frame rate of the input file (valid for raw formats only)
|
||||||
|
to 1 fps and the frame rate of the output file to 24 fps:
|
||||||
|
@example
|
||||||
|
ffmpeg -r 1 -i input.m2v -r 24 output.avi
|
||||||
|
@end example
|
||||||
|
|
||||||
|
The format option may be needed for raw input files.
|
||||||
|
|
||||||
|
By default, FFmpeg tries to convert as losslessly as possible: It
|
||||||
|
uses the same audio and video parameters for the outputs as the one
|
||||||
|
specified for the inputs.
|
||||||
|
@c man end
|
||||||
|
|
||||||
|
@c man begin OPTIONS
|
||||||
|
|
||||||
|
@include fftools-common-opts.texi
|
||||||
|
|
||||||
|
@section Main options
|
||||||
|
|
||||||
|
@table @option
|
||||||
|
|
||||||
|
@item -f @var{fmt}
|
||||||
|
Force format.
|
||||||
|
|
||||||
|
@item -i @var{filename}
|
||||||
|
input file name
|
||||||
|
|
||||||
|
@item -y
|
||||||
|
Overwrite output files.
|
||||||
|
|
||||||
|
@item -t @var{duration}
|
||||||
|
Restrict the transcoded/captured video sequence
|
||||||
|
to the duration specified in seconds.
|
||||||
|
@code{hh:mm:ss[.xxx]} syntax is also supported.
|
||||||
|
|
||||||
|
@item -fs @var{limit_size}
|
||||||
|
Set the file size limit.
|
||||||
|
|
||||||
|
@item -ss @var{position}
|
||||||
|
Seek to given time position in seconds.
|
||||||
|
@code{hh:mm:ss[.xxx]} syntax is also supported.
|
||||||
|
|
||||||
|
@item -itsoffset @var{offset}
|
||||||
|
Set the input time offset in seconds.
|
||||||
|
@code{[-]hh:mm:ss[.xxx]} syntax is also supported.
|
||||||
|
This option affects all the input files that follow it.
|
||||||
|
The offset is added to the timestamps of the input files.
|
||||||
|
Specifying a positive offset means that the corresponding
|
||||||
|
streams are delayed by 'offset' seconds.
|
||||||
|
|
||||||
|
@item -timestamp @var{time}
|
||||||
|
Set the timestamp.
|
||||||
|
|
||||||
|
@item -metadata @var{key}=@var{value}
|
||||||
|
Set a metadata key/value pair.
|
||||||
|
|
||||||
|
For example, for setting the title in the output file:
|
||||||
|
@example
|
||||||
|
ffmpeg -i in.avi -metadata title="my title" out.flv
|
||||||
|
@end example
|
||||||
|
|
||||||
|
@item -v @var{number}
|
||||||
|
Set the logging verbosity level.
|
||||||
|
|
||||||
|
@item -target @var{type}
|
||||||
|
Specify target file type ("vcd", "svcd", "dvd", "dv", "dv50", "pal-vcd",
|
||||||
|
"ntsc-svcd", ... ). All the format options (bitrate, codecs,
|
||||||
|
buffer sizes) are then set automatically. You can just type:
|
||||||
|
|
||||||
|
@example
|
||||||
|
ffmpeg -i myfile.avi -target vcd /tmp/vcd.mpg
|
||||||
|
@end example
|
||||||
|
|
||||||
|
Nevertheless you can specify additional options as long as you know
|
||||||
|
they do not conflict with the standard, as in:
|
||||||
|
|
||||||
|
@example
|
||||||
|
ffmpeg -i myfile.avi -target vcd -bf 2 /tmp/vcd.mpg
|
||||||
|
@end example
|
||||||
|
|
||||||
|
@item -dframes @var{number}
|
||||||
|
Set the number of data frames to record.
|
||||||
|
|
||||||
|
@item -scodec @var{codec}
|
||||||
|
Force subtitle codec ('copy' to copy stream).
|
||||||
|
|
||||||
|
@item -newsubtitle
|
||||||
|
Add a new subtitle stream to the current output stream.
|
||||||
|
|
||||||
|
@item -slang @var{code}
|
||||||
|
Set the ISO 639 language code (3 letters) of the current subtitle stream.
|
||||||
|
|
||||||
|
@end table
|
||||||
|
|
||||||
|
@section Video Options
|
||||||
|
|
||||||
|
@table @option
|
||||||
|
@item -b @var{bitrate}
|
||||||
|
Set the video bitrate in bit/s (default = 200 kb/s).
|
||||||
|
@item -vframes @var{number}
|
||||||
|
Set the number of video frames to record.
|
||||||
|
@item -r @var{fps}
|
||||||
|
Set frame rate (Hz value, fraction or abbreviation), (default = 25).
|
||||||
|
@item -s @var{size}
|
||||||
|
Set frame size. The format is @samp{wxh} (ffserver default = 160x128, ffmpeg default = same as source).
|
||||||
|
The following abbreviations are recognized:
|
||||||
|
@table @samp
|
||||||
|
@item sqcif
|
||||||
|
128x96
|
||||||
|
@item qcif
|
||||||
|
176x144
|
||||||
|
@item cif
|
||||||
|
352x288
|
||||||
|
@item 4cif
|
||||||
|
704x576
|
||||||
|
@item 16cif
|
||||||
|
1408x1152
|
||||||
|
@item qqvga
|
||||||
|
160x120
|
||||||
|
@item qvga
|
||||||
|
320x240
|
||||||
|
@item vga
|
||||||
|
640x480
|
||||||
|
@item svga
|
||||||
|
800x600
|
||||||
|
@item xga
|
||||||
|
1024x768
|
||||||
|
@item uxga
|
||||||
|
1600x1200
|
||||||
|
@item qxga
|
||||||
|
2048x1536
|
||||||
|
@item sxga
|
||||||
|
1280x1024
|
||||||
|
@item qsxga
|
||||||
|
2560x2048
|
||||||
|
@item hsxga
|
||||||
|
5120x4096
|
||||||
|
@item wvga
|
||||||
|
852x480
|
||||||
|
@item wxga
|
||||||
|
1366x768
|
||||||
|
@item wsxga
|
||||||
|
1600x1024
|
||||||
|
@item wuxga
|
||||||
|
1920x1200
|
||||||
|
@item woxga
|
||||||
|
2560x1600
|
||||||
|
@item wqsxga
|
||||||
|
3200x2048
|
||||||
|
@item wquxga
|
||||||
|
3840x2400
|
||||||
|
@item whsxga
|
||||||
|
6400x4096
|
||||||
|
@item whuxga
|
||||||
|
7680x4800
|
||||||
|
@item cga
|
||||||
|
320x200
|
||||||
|
@item ega
|
||||||
|
640x350
|
||||||
|
@item hd480
|
||||||
|
852x480
|
||||||
|
@item hd720
|
||||||
|
1280x720
|
||||||
|
@item hd1080
|
||||||
|
1920x1080
|
||||||
|
@end table
|
||||||
|
|
||||||
|
@item -aspect @var{aspect}
|
||||||
|
Set aspect ratio (4:3, 16:9 or 1.3333, 1.7777).
|
||||||
|
@item -croptop @var{size}
|
||||||
|
Set top crop band size (in pixels).
|
||||||
|
@item -cropbottom @var{size}
|
||||||
|
Set bottom crop band size (in pixels).
|
||||||
|
@item -cropleft @var{size}
|
||||||
|
Set left crop band size (in pixels).
|
||||||
|
@item -cropright @var{size}
|
||||||
|
Set right crop band size (in pixels).
|
||||||
|
@item -padtop @var{size}
|
||||||
|
Set top pad band size (in pixels).
|
||||||
|
@item -padbottom @var{size}
|
||||||
|
Set bottom pad band size (in pixels).
|
||||||
|
@item -padleft @var{size}
|
||||||
|
Set left pad band size (in pixels).
|
||||||
|
@item -padright @var{size}
|
||||||
|
Set right pad band size (in pixels).
|
||||||
|
@item -padcolor @var{hex_color}
|
||||||
|
Set color of padded bands. The value for padcolor is expressed
|
||||||
|
as a six digit hexadecimal number where the first two digits
|
||||||
|
represent red, the middle two digits green and last two digits
|
||||||
|
blue (default = 000000 (black)).
|
||||||
|
@item -vn
|
||||||
|
Disable video recording.
|
||||||
|
@item -bt @var{tolerance}
|
||||||
|
Set video bitrate tolerance (in bits, default 4000k).
|
||||||
|
Has a minimum value of: (target_bitrate/target_framerate).
|
||||||
|
In 1-pass mode, bitrate tolerance specifies how far ratecontrol is
|
||||||
|
willing to deviate from the target average bitrate value. This is
|
||||||
|
not related to min/max bitrate. Lowering tolerance too much has
|
||||||
|
an adverse effect on quality.
|
||||||
|
@item -maxrate @var{bitrate}
|
||||||
|
Set max video bitrate (in bit/s).
|
||||||
|
Requires -bufsize to be set.
|
||||||
|
@item -minrate @var{bitrate}
|
||||||
|
Set min video bitrate (in bit/s).
|
||||||
|
Most useful in setting up a CBR encode:
|
||||||
|
@example
|
||||||
|
ffmpeg -i myfile.avi -b 4000k -minrate 4000k -maxrate 4000k -bufsize 1835k out.m2v
|
||||||
|
@end example
|
||||||
|
It is of little use elsewise.
|
||||||
|
@item -bufsize @var{size}
|
||||||
|
Set video buffer verifier buffer size (in bits).
|
||||||
|
@item -vcodec @var{codec}
|
||||||
|
Force video codec to @var{codec}. Use the @code{copy} special value to
|
||||||
|
tell that the raw codec data must be copied as is.
|
||||||
|
@item -sameq
|
||||||
|
Use same video quality as source (implies VBR).
|
||||||
|
|
||||||
|
@item -pass @var{n}
|
||||||
|
Select the pass number (1 or 2). It is used to do two-pass
|
||||||
|
video encoding. The statistics of the video are recorded in the first
|
||||||
|
pass into a log file (see also the option -passlogfile),
|
||||||
|
and in the second pass that log file is used to generate the video
|
||||||
|
at the exact requested bitrate.
|
||||||
|
On pass 1, you may just deactivate audio and set output to null,
|
||||||
|
examples for Windows and Unix:
|
||||||
|
@example
|
||||||
|
ffmpeg -i foo.mov -vcodec libxvid -pass 1 -an -f rawvideo -y NUL
|
||||||
|
ffmpeg -i foo.mov -vcodec libxvid -pass 1 -an -f rawvideo -y /dev/null
|
||||||
|
@end example
|
||||||
|
|
||||||
|
@item -passlogfile @var{prefix}
|
||||||
|
Set two-pass log file name prefix to @var{prefix}, the default file name
|
||||||
|
prefix is ``ffmpeg2pass''. The complete file name will be
|
||||||
|
@file{PREFIX-N.log}, where N is a number specific to the output
|
||||||
|
stream.
|
||||||
|
|
||||||
|
@item -newvideo
|
||||||
|
Add a new video stream to the current output stream.
|
||||||
|
|
||||||
|
@item -vlang @var{code}
|
||||||
|
Set the ISO 639 language code (3 letters) of the current video stream.
|
||||||
|
|
||||||
|
@end table
|
||||||
|
|
||||||
|
@section Advanced Video Options
|
||||||
|
|
||||||
|
@table @option
|
||||||
|
@item -pix_fmt @var{format}
|
||||||
|
Set pixel format. Use 'list' as parameter to show all the supported
|
||||||
|
pixel formats.
|
||||||
|
@item -sws_flags @var{flags}
|
||||||
|
Set SwScaler flags.
|
||||||
|
@item -g @var{gop_size}
|
||||||
|
Set the group of pictures size.
|
||||||
|
@item -intra
|
||||||
|
Use only intra frames.
|
||||||
|
@item -vdt @var{n}
|
||||||
|
Discard threshold.
|
||||||
|
@item -qscale @var{q}
|
||||||
|
Use fixed video quantizer scale (VBR).
|
||||||
|
@item -qmin @var{q}
|
||||||
|
minimum video quantizer scale (VBR)
|
||||||
|
@item -qmax @var{q}
|
||||||
|
maximum video quantizer scale (VBR)
|
||||||
|
@item -qdiff @var{q}
|
||||||
|
maximum difference between the quantizer scales (VBR)
|
||||||
|
@item -qblur @var{blur}
|
||||||
|
video quantizer scale blur (VBR) (range 0.0 - 1.0)
|
||||||
|
@item -qcomp @var{compression}
|
||||||
|
video quantizer scale compression (VBR) (default 0.5).
|
||||||
|
Constant of ratecontrol equation. Recommended range for default rc_eq: 0.0-1.0
|
||||||
|
|
||||||
|
@item -lmin @var{lambda}
|
||||||
|
minimum video lagrange factor (VBR)
|
||||||
|
@item -lmax @var{lambda}
|
||||||
|
max video lagrange factor (VBR)
|
||||||
|
@item -mblmin @var{lambda}
|
||||||
|
minimum macroblock quantizer scale (VBR)
|
||||||
|
@item -mblmax @var{lambda}
|
||||||
|
maximum macroblock quantizer scale (VBR)
|
||||||
|
|
||||||
|
These four options (lmin, lmax, mblmin, mblmax) use 'lambda' units,
|
||||||
|
but you may use the QP2LAMBDA constant to easily convert from 'q' units:
|
||||||
|
@example
|
||||||
|
ffmpeg -i src.ext -lmax 21*QP2LAMBDA dst.ext
|
||||||
|
@end example
|
||||||
|
|
||||||
|
@item -rc_init_cplx @var{complexity}
|
||||||
|
initial complexity for single pass encoding
|
||||||
|
@item -b_qfactor @var{factor}
|
||||||
|
qp factor between P- and B-frames
|
||||||
|
@item -i_qfactor @var{factor}
|
||||||
|
qp factor between P- and I-frames
|
||||||
|
@item -b_qoffset @var{offset}
|
||||||
|
qp offset between P- and B-frames
|
||||||
|
@item -i_qoffset @var{offset}
|
||||||
|
qp offset between P- and I-frames
|
||||||
|
@item -rc_eq @var{equation}
|
||||||
|
Set rate control equation (@pxref{FFmpeg formula
|
||||||
|
evaluator}) (default = @code{tex^qComp}).
|
||||||
|
@item -rc_override @var{override}
|
||||||
|
rate control override for specific intervals
|
||||||
|
@item -me_method @var{method}
|
||||||
|
Set motion estimation method to @var{method}.
|
||||||
|
Available methods are (from lowest to best quality):
|
||||||
|
@table @samp
|
||||||
|
@item zero
|
||||||
|
Try just the (0, 0) vector.
|
||||||
|
@item phods
|
||||||
|
@item log
|
||||||
|
@item x1
|
||||||
|
@item hex
|
||||||
|
@item umh
|
||||||
|
@item epzs
|
||||||
|
(default method)
|
||||||
|
@item full
|
||||||
|
exhaustive search (slow and marginally better than epzs)
|
||||||
|
@end table
|
||||||
|
|
||||||
|
@item -dct_algo @var{algo}
|
||||||
|
Set DCT algorithm to @var{algo}. Available values are:
|
||||||
|
@table @samp
|
||||||
|
@item 0
|
||||||
|
FF_DCT_AUTO (default)
|
||||||
|
@item 1
|
||||||
|
FF_DCT_FASTINT
|
||||||
|
@item 2
|
||||||
|
FF_DCT_INT
|
||||||
|
@item 3
|
||||||
|
FF_DCT_MMX
|
||||||
|
@item 4
|
||||||
|
FF_DCT_MLIB
|
||||||
|
@item 5
|
||||||
|
FF_DCT_ALTIVEC
|
||||||
|
@end table
|
||||||
|
|
||||||
|
@item -idct_algo @var{algo}
|
||||||
|
Set IDCT algorithm to @var{algo}. Available values are:
|
||||||
|
@table @samp
|
||||||
|
@item 0
|
||||||
|
FF_IDCT_AUTO (default)
|
||||||
|
@item 1
|
||||||
|
FF_IDCT_INT
|
||||||
|
@item 2
|
||||||
|
FF_IDCT_SIMPLE
|
||||||
|
@item 3
|
||||||
|
FF_IDCT_SIMPLEMMX
|
||||||
|
@item 4
|
||||||
|
FF_IDCT_LIBMPEG2MMX
|
||||||
|
@item 5
|
||||||
|
FF_IDCT_PS2
|
||||||
|
@item 6
|
||||||
|
FF_IDCT_MLIB
|
||||||
|
@item 7
|
||||||
|
FF_IDCT_ARM
|
||||||
|
@item 8
|
||||||
|
FF_IDCT_ALTIVEC
|
||||||
|
@item 9
|
||||||
|
FF_IDCT_SH4
|
||||||
|
@item 10
|
||||||
|
FF_IDCT_SIMPLEARM
|
||||||
|
@end table
|
||||||
|
|
||||||
|
@item -er @var{n}
|
||||||
|
Set error resilience to @var{n}.
|
||||||
|
@table @samp
|
||||||
|
@item 1
|
||||||
|
FF_ER_CAREFUL (default)
|
||||||
|
@item 2
|
||||||
|
FF_ER_COMPLIANT
|
||||||
|
@item 3
|
||||||
|
FF_ER_AGGRESSIVE
|
||||||
|
@item 4
|
||||||
|
FF_ER_VERY_AGGRESSIVE
|
||||||
|
@end table
|
||||||
|
|
||||||
|
@item -ec @var{bit_mask}
|
||||||
|
Set error concealment to @var{bit_mask}. @var{bit_mask} is a bit mask of
|
||||||
|
the following values:
|
||||||
|
@table @samp
|
||||||
|
@item 1
|
||||||
|
FF_EC_GUESS_MVS (default = enabled)
|
||||||
|
@item 2
|
||||||
|
FF_EC_DEBLOCK (default = enabled)
|
||||||
|
@end table
|
||||||
|
|
||||||
|
@item -bf @var{frames}
|
||||||
|
Use 'frames' B-frames (supported for MPEG-1, MPEG-2 and MPEG-4).
|
||||||
|
@item -mbd @var{mode}
|
||||||
|
macroblock decision
|
||||||
|
@table @samp
|
||||||
|
@item 0
|
||||||
|
FF_MB_DECISION_SIMPLE: Use mb_cmp (cannot change it yet in FFmpeg).
|
||||||
|
@item 1
|
||||||
|
FF_MB_DECISION_BITS: Choose the one which needs the fewest bits.
|
||||||
|
@item 2
|
||||||
|
FF_MB_DECISION_RD: rate distortion
|
||||||
|
@end table
|
||||||
|
|
||||||
|
@item -4mv
|
||||||
|
Use four motion vector by macroblock (MPEG-4 only).
|
||||||
|
@item -part
|
||||||
|
Use data partitioning (MPEG-4 only).
|
||||||
|
@item -bug @var{param}
|
||||||
|
Work around encoder bugs that are not auto-detected.
|
||||||
|
@item -strict @var{strictness}
|
||||||
|
How strictly to follow the standards.
|
||||||
|
@item -aic
|
||||||
|
Enable Advanced intra coding (h263+).
|
||||||
|
@item -umv
|
||||||
|
Enable Unlimited Motion Vector (h263+)
|
||||||
|
|
||||||
|
@item -deinterlace
|
||||||
|
Deinterlace pictures.
|
||||||
|
@item -ilme
|
||||||
|
Force interlacing support in encoder (MPEG-2 and MPEG-4 only).
|
||||||
|
Use this option if your input file is interlaced and you want
|
||||||
|
to keep the interlaced format for minimum losses.
|
||||||
|
The alternative is to deinterlace the input stream with
|
||||||
|
@option{-deinterlace}, but deinterlacing introduces losses.
|
||||||
|
@item -psnr
|
||||||
|
Calculate PSNR of compressed frames.
|
||||||
|
@item -vstats
|
||||||
|
Dump video coding statistics to @file{vstats_HHMMSS.log}.
|
||||||
|
@item -vstats_file @var{file}
|
||||||
|
Dump video coding statistics to @var{file}.
|
||||||
|
@item -top @var{n}
|
||||||
|
top=1/bottom=0/auto=-1 field first
|
||||||
|
@item -dc @var{precision}
|
||||||
|
Intra_dc_precision.
|
||||||
|
@item -vtag @var{fourcc/tag}
|
||||||
|
Force video tag/fourcc.
|
||||||
|
@item -qphist
|
||||||
|
Show QP histogram.
|
||||||
|
@item -vbsf @var{bitstream_filter}
|
||||||
|
Bitstream filters available are "dump_extra", "remove_extra", "noise", "h264_mp4toannexb", "imxdump", "mjpegadump".
|
||||||
|
@example
|
||||||
|
ffmpeg -i h264.mp4 -vcodec copy -vbsf h264_mp4toannexb -an out.h264
|
||||||
|
@end example
|
||||||
|
@end table
|
||||||
|
|
||||||
|
@section Audio Options
|
||||||
|
|
||||||
|
@table @option
|
||||||
|
@item -aframes @var{number}
|
||||||
|
Set the number of audio frames to record.
|
||||||
|
@item -ar @var{freq}
|
||||||
|
Set the audio sampling frequency (default = 44100 Hz).
|
||||||
|
@item -ab @var{bitrate}
|
||||||
|
Set the audio bitrate in bit/s (default = 64k).
|
||||||
|
@item -aq @var{q}
|
||||||
|
Set the audio quality (codec-specific, VBR).
|
||||||
|
@item -ac @var{channels}
|
||||||
|
Set the number of audio channels (default = 1).
|
||||||
|
@item -an
|
||||||
|
Disable audio recording.
|
||||||
|
@item -acodec @var{codec}
|
||||||
|
Force audio codec to @var{codec}. Use the @code{copy} special value to
|
||||||
|
specify that the raw codec data must be copied as is.
|
||||||
|
@item -newaudio
|
||||||
|
Add a new audio track to the output file. If you want to specify parameters,
|
||||||
|
do so before @code{-newaudio} (@code{-acodec}, @code{-ab}, etc..).
|
||||||
|
|
||||||
|
Mapping will be done automatically, if the number of output streams is equal to
|
||||||
|
the number of input streams, else it will pick the first one that matches. You
|
||||||
|
can override the mapping using @code{-map} as usual.
|
||||||
|
|
||||||
|
Example:
|
||||||
|
@example
|
||||||
|
ffmpeg -i file.mpg -vcodec copy -acodec ac3 -ab 384k test.mpg -acodec mp2 -ab 192k -newaudio
|
||||||
|
@end example
|
||||||
|
@item -alang @var{code}
|
||||||
|
Set the ISO 639 language code (3 letters) of the current audio stream.
|
||||||
|
@end table
|
||||||
|
|
||||||
|
@section Advanced Audio options:
|
||||||
|
|
||||||
|
@table @option
|
||||||
|
@item -atag @var{fourcc/tag}
|
||||||
|
Force audio tag/fourcc.
|
||||||
|
@item -absf @var{bitstream_filter}
|
||||||
|
Bitstream filters available are "dump_extra", "remove_extra", "noise", "mp3comp", "mp3decomp".
|
||||||
|
@end table
|
||||||
|
|
||||||
|
@section Subtitle options:
|
||||||
|
|
||||||
|
@table @option
|
||||||
|
@item -scodec @var{codec}
|
||||||
|
Force subtitle codec ('copy' to copy stream).
|
||||||
|
@item -newsubtitle
|
||||||
|
Add a new subtitle stream to the current output stream.
|
||||||
|
@item -slang @var{code}
|
||||||
|
Set the ISO 639 language code (3 letters) of the current subtitle stream.
|
||||||
|
@item -sn
|
||||||
|
Disable subtitle recording.
|
||||||
|
@item -sbsf @var{bitstream_filter}
|
||||||
|
Bitstream filters available are "mov2textsub", "text2movsub".
|
||||||
|
@example
|
||||||
|
ffmpeg -i file.mov -an -vn -sbsf mov2textsub -scodec copy -f rawvideo sub.txt
|
||||||
|
@end example
|
||||||
|
@end table
|
||||||
|
|
||||||
|
@section Audio/Video grab options
|
||||||
|
|
||||||
|
@table @option
|
||||||
|
@item -vc @var{channel}
|
||||||
|
Set video grab channel (DV1394 only).
|
||||||
|
@item -tvstd @var{standard}
|
||||||
|
Set television standard (NTSC, PAL (SECAM)).
|
||||||
|
@item -isync
|
||||||
|
Synchronize read on input.
|
||||||
|
@end table
|
||||||
|
|
||||||
|
@section Advanced options
|
||||||
|
|
||||||
|
@table @option
|
||||||
|
@item -map @var{input_stream_id}[:@var{sync_stream_id}]
|
||||||
|
Set stream mapping from input streams to output streams.
|
||||||
|
Just enumerate the input streams in the order you want them in the output.
|
||||||
|
@var{sync_stream_id} if specified sets the input stream to sync
|
||||||
|
against.
|
||||||
|
@item -map_meta_data @var{outfile}:@var{infile}
|
||||||
|
Set meta data information of @var{outfile} from @var{infile}.
|
||||||
|
@item -debug
|
||||||
|
Print specific debug info.
|
||||||
|
@item -benchmark
|
||||||
|
Show benchmarking information at the end of an encode.
|
||||||
|
Shows CPU time used and maximum memory consumption.
|
||||||
|
Maximum memory consumption is not supported on all systems,
|
||||||
|
it will usually display as 0 if not supported.
|
||||||
|
@item -dump
|
||||||
|
Dump each input packet.
|
||||||
|
@item -hex
|
||||||
|
When dumping packets, also dump the payload.
|
||||||
|
@item -bitexact
|
||||||
|
Only use bit exact algorithms (for codec testing).
|
||||||
|
@item -ps @var{size}
|
||||||
|
Set RTP payload size in bytes.
|
||||||
|
@item -re
|
||||||
|
Read input at native frame rate. Mainly used to simulate a grab device.
|
||||||
|
@item -loop_input
|
||||||
|
Loop over the input stream. Currently it works only for image
|
||||||
|
streams. This option is used for automatic FFserver testing.
|
||||||
|
@item -loop_output @var{number_of_times}
|
||||||
|
Repeatedly loop output for formats that support looping such as animated GIF
|
||||||
|
(0 will loop the output infinitely).
|
||||||
|
@item -threads @var{count}
|
||||||
|
Thread count.
|
||||||
|
@item -vsync @var{parameter}
|
||||||
|
Video sync method.
|
||||||
|
0 Each frame is passed with its timestamp from the demuxer to the muxer
|
||||||
|
1 Frames will be duplicated and dropped to achieve exactly the requested
|
||||||
|
constant framerate.
|
||||||
|
2 Frames are passed through with their timestamp or dropped so as to prevent
|
||||||
|
2 frames from having the same timestamp
|
||||||
|
-1 Chooses between 1 and 2 depending on muxer capabilities. This is the default method.
|
||||||
|
|
||||||
|
With -map you can select from
|
||||||
|
which stream the timestamps should be taken. You can leave either video or
|
||||||
|
audio unchanged and sync the remaining stream(s) to the unchanged one.
|
||||||
|
@item -async @var{samples_per_second}
|
||||||
|
Audio sync method. "Stretches/squeezes" the audio stream to match the timestamps,
|
||||||
|
the parameter is the maximum samples per second by which the audio is changed.
|
||||||
|
-async 1 is a special case where only the start of the audio stream is corrected
|
||||||
|
without any later correction.
|
||||||
|
@item -copyts
|
||||||
|
Copy timestamps from input to output.
|
||||||
|
@item -shortest
|
||||||
|
Finish encoding when the shortest input stream ends.
|
||||||
|
@item -dts_delta_threshold
|
||||||
|
Timestamp discontinuity delta threshold.
|
||||||
|
@item -muxdelay @var{seconds}
|
||||||
|
Set the maximum demux-decode delay.
|
||||||
|
@item -muxpreload @var{seconds}
|
||||||
|
Set the initial demux-decode delay.
|
||||||
|
@end table
|
||||||
|
|
||||||
|
@section Preset files
|
||||||
|
|
||||||
|
A preset file contains a sequence of @var{option}=@var{value} pairs,
|
||||||
|
one for each line, specifying a sequence of options which would be
|
||||||
|
awkward to specify on the command line. Lines starting with the hash
|
||||||
|
('#') character are ignored and are used to provide comments. Check
|
||||||
|
the @file{ffpresets} directory in the FFmpeg source tree for examples.
|
||||||
|
|
||||||
|
Preset files are specified with the @code{vpre}, @code{apre},
|
||||||
|
@code{spre}, and @code{fpre} options. The @code{fpre} option takes the
|
||||||
|
filename of the preset instead of a preset name as input and can be
|
||||||
|
used for any kind of codec. For the @code{vpre}, @code{apre}, and
|
||||||
|
@code{spre} options, the options specified in a preset file are
|
||||||
|
applied to the currently selected codec of the same type as the preset
|
||||||
|
option.
|
||||||
|
|
||||||
|
The argument passed to the @code{vpre}, @code{apre}, and @code{spre}
|
||||||
|
preset options identifies the preset file to use according to the
|
||||||
|
following rules:
|
||||||
|
|
||||||
|
First ffmpeg searches for a file named @var{arg}.ffpreset in the
|
||||||
|
directories @file{$FFMPEG_DATADIR} (if set), and @file{$HOME/.ffmpeg}, and in
|
||||||
|
the datadir defined at configuration time (usually @file{PREFIX/share/ffmpeg})
|
||||||
|
in that order. For example, if the argument is @code{libx264-max}, it will
|
||||||
|
search for the file @file{libx264-max.ffpreset}.
|
||||||
|
|
||||||
|
If no such file is found, then ffmpeg will search for a file named
|
||||||
|
@var{codec_name}-@var{arg}.ffpreset in the above-mentioned
|
||||||
|
directories, where @var{codec_name} is the name of the codec to which
|
||||||
|
the preset file options will be applied. For example, if you select
|
||||||
|
the video codec with @code{-vcodec libx264} and use @code{-vpre max},
|
||||||
|
then it will search for the file @file{libx264-max.ffpreset}.
|
||||||
|
|
||||||
|
@anchor{FFmpeg formula evaluator}
|
||||||
|
@section FFmpeg formula evaluator
|
||||||
|
|
||||||
|
When evaluating a rate control string, FFmpeg uses an internal formula
|
||||||
|
evaluator.
|
||||||
|
|
||||||
|
The following binary operators are available: @code{+}, @code{-},
|
||||||
|
@code{*}, @code{/}, @code{^}.
|
||||||
|
|
||||||
|
The following unary operators are available: @code{+}, @code{-},
|
||||||
|
@code{(...)}.
|
||||||
|
|
||||||
|
The following statements are available: @code{ld}, @code{st},
|
||||||
|
@code{while}.
|
||||||
|
|
||||||
|
The following functions are available:
|
||||||
|
@table @var
|
||||||
|
@item sinh(x)
|
||||||
|
@item cosh(x)
|
||||||
|
@item tanh(x)
|
||||||
|
@item sin(x)
|
||||||
|
@item cos(x)
|
||||||
|
@item tan(x)
|
||||||
|
@item atan(x)
|
||||||
|
@item asin(x)
|
||||||
|
@item acos(x)
|
||||||
|
@item exp(x)
|
||||||
|
@item log(x)
|
||||||
|
@item abs(x)
|
||||||
|
@item squish(x)
|
||||||
|
@item gauss(x)
|
||||||
|
@item mod(x, y)
|
||||||
|
@item max(x, y)
|
||||||
|
@item min(x, y)
|
||||||
|
@item eq(x, y)
|
||||||
|
@item gte(x, y)
|
||||||
|
@item gt(x, y)
|
||||||
|
@item lte(x, y)
|
||||||
|
@item lt(x, y)
|
||||||
|
@item bits2qp(bits)
|
||||||
|
@item qp2bits(qp)
|
||||||
|
@end table
|
||||||
|
|
||||||
|
The following constants are available:
|
||||||
|
@table @var
|
||||||
|
@item PI
|
||||||
|
@item E
|
||||||
|
@item iTex
|
||||||
|
@item pTex
|
||||||
|
@item tex
|
||||||
|
@item mv
|
||||||
|
@item fCode
|
||||||
|
@item iCount
|
||||||
|
@item mcVar
|
||||||
|
@item var
|
||||||
|
@item isI
|
||||||
|
@item isP
|
||||||
|
@item isB
|
||||||
|
@item avgQP
|
||||||
|
@item qComp
|
||||||
|
@item avgIITex
|
||||||
|
@item avgPITex
|
||||||
|
@item avgPPTex
|
||||||
|
@item avgBPTex
|
||||||
|
@item avgTex
|
||||||
|
@end table
|
||||||
|
|
||||||
|
@c man end
|
||||||
|
|
||||||
|
@ignore
|
||||||
|
|
||||||
|
@setfilename ffmpeg
|
||||||
|
@settitle FFmpeg video converter
|
||||||
|
|
||||||
|
@c man begin SEEALSO
|
||||||
|
ffserver(1), ffplay(1) and the HTML documentation of @file{ffmpeg}.
|
||||||
|
@c man end
|
||||||
|
|
||||||
|
@c man begin AUTHOR
|
||||||
|
Fabrice Bellard
|
||||||
|
@c man end
|
||||||
|
|
||||||
|
@end ignore
|
||||||
|
|
||||||
|
@section Protocols
|
||||||
|
|
||||||
|
The file name can be @file{-} to read from standard input or to write
|
||||||
|
to standard output.
|
||||||
|
|
||||||
|
FFmpeg also handles many protocols specified with an URL syntax.
|
||||||
|
|
||||||
|
Use 'ffmpeg -protocols' to see a list of the supported protocols.
|
||||||
|
|
||||||
|
The protocol @code{http:} is currently used only to communicate with
|
||||||
|
FFserver (see the FFserver documentation). When FFmpeg will be a
|
||||||
|
video player it will also be used for streaming :-)
|
||||||
|
|
||||||
|
@chapter Tips
|
||||||
|
|
||||||
|
@itemize
|
||||||
|
@item For streaming at very low bitrate application, use a low frame rate
|
||||||
|
and a small GOP size. This is especially true for RealVideo where
|
||||||
|
the Linux player does not seem to be very fast, so it can miss
|
||||||
|
frames. An example is:
|
||||||
|
|
||||||
|
@example
|
||||||
|
ffmpeg -g 3 -r 3 -t 10 -b 50k -s qcif -f rv10 /tmp/b.rm
|
||||||
|
@end example
|
||||||
|
|
||||||
|
@item The parameter 'q' which is displayed while encoding is the current
|
||||||
|
quantizer. The value 1 indicates that a very good quality could
|
||||||
|
be achieved. The value 31 indicates the worst quality. If q=31 appears
|
||||||
|
too often, it means that the encoder cannot compress enough to meet
|
||||||
|
your bitrate. You must either increase the bitrate, decrease the
|
||||||
|
frame rate or decrease the frame size.
|
||||||
|
|
||||||
|
@item If your computer is not fast enough, you can speed up the
|
||||||
|
compression at the expense of the compression ratio. You can use
|
||||||
|
'-me zero' to speed up motion estimation, and '-intra' to disable
|
||||||
|
motion estimation completely (you have only I-frames, which means it
|
||||||
|
is about as good as JPEG compression).
|
||||||
|
|
||||||
|
@item To have very low audio bitrates, reduce the sampling frequency
|
||||||
|
(down to 22050 Hz for MPEG audio, 22050 or 11025 for AC-3).
|
||||||
|
|
||||||
|
@item To have a constant quality (but a variable bitrate), use the option
|
||||||
|
'-qscale n' when 'n' is between 1 (excellent quality) and 31 (worst
|
||||||
|
quality).
|
||||||
|
|
||||||
|
@item When converting video files, you can use the '-sameq' option which
|
||||||
|
uses the same quality factor in the encoder as in the decoder.
|
||||||
|
It allows almost lossless encoding.
|
||||||
|
|
||||||
|
@end itemize
|
||||||
|
|
||||||
|
@bye
|
||||||
@@ -1,42 +0,0 @@
|
|||||||
\input texinfo @c -*- texinfo -*-
|
|
||||||
|
|
||||||
@settitle FFmpeg Filters Documentation
|
|
||||||
@titlepage
|
|
||||||
@center @titlefont{FFmpeg Filters Documentation}
|
|
||||||
@end titlepage
|
|
||||||
|
|
||||||
@top
|
|
||||||
|
|
||||||
@contents
|
|
||||||
|
|
||||||
@chapter Description
|
|
||||||
@c man begin DESCRIPTION
|
|
||||||
|
|
||||||
This document describes filters, sources, and sinks provided by the
|
|
||||||
libavfilter library.
|
|
||||||
|
|
||||||
@c man end DESCRIPTION
|
|
||||||
|
|
||||||
@include filters.texi
|
|
||||||
|
|
||||||
@chapter See Also
|
|
||||||
|
|
||||||
@ifhtml
|
|
||||||
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
|
|
||||||
@url{libavfilter.html,libavfilter}
|
|
||||||
@end ifhtml
|
|
||||||
|
|
||||||
@ifnothtml
|
|
||||||
ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1), libavfilter(3)
|
|
||||||
@end ifnothtml
|
|
||||||
|
|
||||||
@include authors.texi
|
|
||||||
|
|
||||||
@ignore
|
|
||||||
|
|
||||||
@setfilename ffmpeg-filters
|
|
||||||
@settitle FFmpeg filters
|
|
||||||
|
|
||||||
@end ignore
|
|
||||||
|
|
||||||
@bye
|
|
||||||
@@ -1,42 +0,0 @@
|
|||||||
\input texinfo @c -*- texinfo -*-
|
|
||||||
|
|
||||||
@settitle FFmpeg Formats Documentation
|
|
||||||
@titlepage
|
|
||||||
@center @titlefont{FFmpeg Formats Documentation}
|
|
||||||
@end titlepage
|
|
||||||
|
|
||||||
@top
|
|
||||||
|
|
||||||
@contents
|
|
||||||
|
|
||||||
@chapter Description
|
|
||||||
@c man begin DESCRIPTION
|
|
||||||
|
|
||||||
This document describes the supported formats (muxers and demuxers)
|
|
||||||
provided by the libavformat library.
|
|
||||||
|
|
||||||
@c man end DESCRIPTION
|
|
||||||
|
|
||||||
@include formats.texi
|
|
||||||
|
|
||||||
@chapter See Also
|
|
||||||
|
|
||||||
@ifhtml
|
|
||||||
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
|
|
||||||
@url{libavformat.html,libavformat}
|
|
||||||
@end ifhtml
|
|
||||||
|
|
||||||
@ifnothtml
|
|
||||||
ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1), libavformat(3)
|
|
||||||
@end ifnothtml
|
|
||||||
|
|
||||||
@include authors.texi
|
|
||||||
|
|
||||||
@ignore
|
|
||||||
|
|
||||||
@setfilename ffmpeg-formats
|
|
||||||
@settitle FFmpeg formats
|
|
||||||
|
|
||||||
@end ignore
|
|
||||||
|
|
||||||
@bye
|
|
||||||
@@ -1,42 +0,0 @@
|
|||||||
\input texinfo @c -*- texinfo -*-
|
|
||||||
|
|
||||||
@settitle FFmpeg Protocols Documentation
|
|
||||||
@titlepage
|
|
||||||
@center @titlefont{FFmpeg Protocols Documentation}
|
|
||||||
@end titlepage
|
|
||||||
|
|
||||||
@top
|
|
||||||
|
|
||||||
@contents
|
|
||||||
|
|
||||||
@chapter Description
|
|
||||||
@c man begin DESCRIPTION
|
|
||||||
|
|
||||||
This document describes the input and output protocols provided by the
|
|
||||||
libavformat library.
|
|
||||||
|
|
||||||
@c man end DESCRIPTION
|
|
||||||
|
|
||||||
@include protocols.texi
|
|
||||||
|
|
||||||
@chapter See Also
|
|
||||||
|
|
||||||
@ifhtml
|
|
||||||
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
|
|
||||||
@url{libavformat.html,libavformat}
|
|
||||||
@end ifhtml
|
|
||||||
|
|
||||||
@ifnothtml
|
|
||||||
ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1), libavformat(3)
|
|
||||||
@end ifnothtml
|
|
||||||
|
|
||||||
@include authors.texi
|
|
||||||
|
|
||||||
@ignore
|
|
||||||
|
|
||||||
@setfilename ffmpeg-protocols
|
|
||||||
@settitle FFmpeg protocols
|
|
||||||
|
|
||||||
@end ignore
|
|
||||||
|
|
||||||
@bye
|
|
||||||
@@ -1,44 +0,0 @@
|
|||||||
\input texinfo @c -*- texinfo -*-
|
|
||||||
|
|
||||||
@settitle FFmpeg Resampler Documentation
|
|
||||||
@titlepage
|
|
||||||
@center @titlefont{FFmpeg Resampler Documentation}
|
|
||||||
@end titlepage
|
|
||||||
|
|
||||||
@top
|
|
||||||
|
|
||||||
@contents
|
|
||||||
|
|
||||||
@chapter Description
|
|
||||||
@c man begin DESCRIPTION
|
|
||||||
|
|
||||||
The FFmpeg resampler provides an high-level interface to the
|
|
||||||
libswresample library audio resampling utilities. In particular it
|
|
||||||
allows to perform audio resampling, audio channel layout rematrixing,
|
|
||||||
and convert audio format and packing layout.
|
|
||||||
|
|
||||||
@c man end DESCRIPTION
|
|
||||||
|
|
||||||
@include resampler.texi
|
|
||||||
|
|
||||||
@chapter See Also
|
|
||||||
|
|
||||||
@ifhtml
|
|
||||||
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
|
|
||||||
@url{libswresample.html,libswresample}
|
|
||||||
@end ifhtml
|
|
||||||
|
|
||||||
@ifnothtml
|
|
||||||
ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1), libswresample(3)
|
|
||||||
@end ifnothtml
|
|
||||||
|
|
||||||
@include authors.texi
|
|
||||||
|
|
||||||
@ignore
|
|
||||||
|
|
||||||
@setfilename ffmpeg-resampler
|
|
||||||
@settitle FFmpeg Resampler
|
|
||||||
|
|
||||||
@end ignore
|
|
||||||
|
|
||||||
@bye
|
|
||||||
@@ -1,43 +0,0 @@
|
|||||||
\input texinfo @c -*- texinfo -*-
|
|
||||||
|
|
||||||
@settitle FFmpeg Scaler Documentation
|
|
||||||
@titlepage
|
|
||||||
@center @titlefont{FFmpeg Scaler Documentation}
|
|
||||||
@end titlepage
|
|
||||||
|
|
||||||
@top
|
|
||||||
|
|
||||||
@contents
|
|
||||||
|
|
||||||
@chapter Description
|
|
||||||
@c man begin DESCRIPTION
|
|
||||||
|
|
||||||
The FFmpeg rescaler provides an high-level interface to the libswscale
|
|
||||||
library image conversion utilities. In particular it allows to perform
|
|
||||||
image rescaling and pixel format conversion.
|
|
||||||
|
|
||||||
@c man end DESCRIPTION
|
|
||||||
|
|
||||||
@include scaler.texi
|
|
||||||
|
|
||||||
@chapter See Also
|
|
||||||
|
|
||||||
@ifhtml
|
|
||||||
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
|
|
||||||
@url{libswscale.html,libswscale}
|
|
||||||
@end ifhtml
|
|
||||||
|
|
||||||
@ifnothtml
|
|
||||||
ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1), libswscale(3)
|
|
||||||
@end ifnothtml
|
|
||||||
|
|
||||||
@include authors.texi
|
|
||||||
|
|
||||||
@ignore
|
|
||||||
|
|
||||||
@setfilename ffmpeg-scaler
|
|
||||||
@settitle FFmpeg video scaling and pixel format converter
|
|
||||||
|
|
||||||
@end ignore
|
|
||||||
|
|
||||||
@bye
|
|
||||||
@@ -1,42 +0,0 @@
|
|||||||
\input texinfo @c -*- texinfo -*-
|
|
||||||
|
|
||||||
@settitle FFmpeg Utilities Documentation
|
|
||||||
@titlepage
|
|
||||||
@center @titlefont{FFmpeg Utilities Documentation}
|
|
||||||
@end titlepage
|
|
||||||
|
|
||||||
@top
|
|
||||||
|
|
||||||
@contents
|
|
||||||
|
|
||||||
@chapter Description
|
|
||||||
@c man begin DESCRIPTION
|
|
||||||
|
|
||||||
This document describes some generic features and utilities provided
|
|
||||||
by the libavutil library.
|
|
||||||
|
|
||||||
@c man end DESCRIPTION
|
|
||||||
|
|
||||||
@include utils.texi
|
|
||||||
|
|
||||||
@chapter See Also
|
|
||||||
|
|
||||||
@ifhtml
|
|
||||||
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
|
|
||||||
@url{libavutil.html,libavutil}
|
|
||||||
@end ifhtml
|
|
||||||
|
|
||||||
@ifnothtml
|
|
||||||
ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1), libavutil(3)
|
|
||||||
@end ifnothtml
|
|
||||||
|
|
||||||
@include authors.texi
|
|
||||||
|
|
||||||
@ignore
|
|
||||||
|
|
||||||
@setfilename ffmpeg-utils
|
|
||||||
@settitle FFmpeg utilities
|
|
||||||
|
|
||||||
@end ignore
|
|
||||||
|
|
||||||
@bye
|
|
||||||
1443
doc/ffmpeg.texi
1443
doc/ffmpeg.texi
File diff suppressed because it is too large
Load Diff
@@ -1,47 +0,0 @@
|
|||||||
:
|
|
||||||
ffmpeg.c : libav*
|
|
||||||
======== : ======
|
|
||||||
:
|
|
||||||
:
|
|
||||||
--------------------------------:---> AVStream...
|
|
||||||
InputStream input_streams[] / :
|
|
||||||
/ :
|
|
||||||
InputFile input_files[] +==========================+ / ^ :
|
|
||||||
------> 0 | : st ---:-----------:--/ : :
|
|
||||||
^ +------+-----------+-----+ / +--------------------------+ : :
|
|
||||||
: | :ist_index--:-----:---------/ 1 | : st : | : :
|
|
||||||
: +------+-----------+-----+ +==========================+ : :
|
|
||||||
nb_input_files : | :ist_index--:-----:------------------> 2 | : st : | : :
|
|
||||||
: +------+-----------+-----+ +--------------------------+ : nb_input_streams :
|
|
||||||
: | :ist_index : | 3 | ... | : :
|
|
||||||
v +------+-----------+-----+ +--------------------------+ : :
|
|
||||||
--> 4 | | : :
|
|
||||||
| +--------------------------+ : :
|
|
||||||
| 5 | | : :
|
|
||||||
| +==========================+ v :
|
|
||||||
| :
|
|
||||||
| :
|
|
||||||
| :
|
|
||||||
| :
|
|
||||||
--------- --------------------------------:---> AVStream...
|
|
||||||
\ / :
|
|
||||||
OutputStream output_streams[] / :
|
|
||||||
\ / :
|
|
||||||
+======\======================/======+ ^ :
|
|
||||||
------> 0 | : source_index : st-:--- | : :
|
|
||||||
OutputFile output_files[] / +------------------------------------+ : :
|
|
||||||
/ 1 | : : : | : :
|
|
||||||
^ +------+------------+-----+ / +------------------------------------+ : :
|
|
||||||
: | : ost_index -:-----:------/ 2 | : : : | : :
|
|
||||||
nb_output_files : +------+------------+-----+ +====================================+ : :
|
|
||||||
: | : ost_index -:-----|-----------------> 3 | : : : | : :
|
|
||||||
: +------+------------+-----+ +------------------------------------+ : nb_output_streams :
|
|
||||||
: | : : | 4 | | : :
|
|
||||||
: +------+------------+-----+ +------------------------------------+ : :
|
|
||||||
: | : : | 5 | | : :
|
|
||||||
v +------+------------+-----+ +------------------------------------+ : :
|
|
||||||
6 | | : :
|
|
||||||
+------------------------------------+ : :
|
|
||||||
7 | | : :
|
|
||||||
+====================================+ v :
|
|
||||||
:
|
|
||||||
172
doc/ffmpeg_powerpc_performance_evaluation_howto.txt
Normal file
172
doc/ffmpeg_powerpc_performance_evaluation_howto.txt
Normal file
@@ -0,0 +1,172 @@
|
|||||||
|
FFmpeg & evaluating performance on the PowerPC Architecture HOWTO
|
||||||
|
|
||||||
|
(c) 2003-2004 Romain Dolbeau <romain@dolbeau.org>
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
I - Introduction
|
||||||
|
|
||||||
|
The PowerPC architecture and its SIMD extension AltiVec offer some
|
||||||
|
interesting tools to evaluate performance and improve the code.
|
||||||
|
This document tries to explain how to use those tools with FFmpeg.
|
||||||
|
|
||||||
|
The architecture itself offers two ways to evaluate the performance of
|
||||||
|
a given piece of code:
|
||||||
|
|
||||||
|
1) The Time Base Registers (TBL)
|
||||||
|
2) The Performance Monitor Counter Registers (PMC)
|
||||||
|
|
||||||
|
The first ones are always available, always active, but they're not very
|
||||||
|
accurate: the registers increment by one every four *bus* cycles. On
|
||||||
|
my 667 Mhz tiBook (ppc7450), this means once every twenty *processor*
|
||||||
|
cycles. So we won't use that.
|
||||||
|
|
||||||
|
The PMC are much more useful: not only can they report cycle-accurate
|
||||||
|
timing, but they can also be used to monitor many other parameters,
|
||||||
|
such as the number of AltiVec stalls for every kind of instruction,
|
||||||
|
or instruction cache misses. The downside is that not all processors
|
||||||
|
support the PMC (all G3, all G4 and the 970 do support them), and
|
||||||
|
they're inactive by default - you need to activate them with a
|
||||||
|
dedicated tool. Also, the number of available PMC depends on the
|
||||||
|
procesor: the various 604 have 2, the various 75x (aka. G3) have 4,
|
||||||
|
and the various 74xx (aka G4) have 6.
|
||||||
|
|
||||||
|
*WARNING*: The PowerPC 970 is not very well documented, and its PMC
|
||||||
|
registers are 64 bits wide. To properly notify the code, you *must*
|
||||||
|
tune for the 970 (using --tune=970), or the code will assume 32 bit
|
||||||
|
registers.
|
||||||
|
|
||||||
|
|
||||||
|
II - Enabling FFmpeg PowerPC performance support
|
||||||
|
|
||||||
|
This needs to be done by hand. First, you need to configure FFmpeg as
|
||||||
|
usual, but add the "--powerpc-perf-enable" option. For instance:
|
||||||
|
|
||||||
|
#####
|
||||||
|
./configure --prefix=/usr/local/ffmpeg-svn --cc=gcc-3.3 --tune=7450 --powerpc-perf-enable
|
||||||
|
#####
|
||||||
|
|
||||||
|
This will configure FFmpeg to install inside /usr/local/ffmpeg-svn,
|
||||||
|
compiling with gcc-3.3 (you should try to use this one or a newer
|
||||||
|
gcc), and tuning for the PowerPC 7450 (i.e. the newer G4; as a rule of
|
||||||
|
thumb, those at 550Mhz and more). It will also enable the PMC.
|
||||||
|
|
||||||
|
You may also edit the file "config.h" to enable the following line:
|
||||||
|
|
||||||
|
#####
|
||||||
|
// #define ALTIVEC_USE_REFERENCE_C_CODE 1
|
||||||
|
#####
|
||||||
|
|
||||||
|
If you enable this line, then the code will not make use of AltiVec,
|
||||||
|
but will use the reference C code instead. This is useful to compare
|
||||||
|
performance between two versions of the code.
|
||||||
|
|
||||||
|
Also, the number of enabled PMC is defined in "libavcodec/ppc/dsputil_ppc.h":
|
||||||
|
|
||||||
|
#####
|
||||||
|
#define POWERPC_NUM_PMC_ENABLED 4
|
||||||
|
#####
|
||||||
|
|
||||||
|
If you have a G4 CPU, you can enable all 6 PMC. DO NOT enable more
|
||||||
|
PMC than available on your CPU!
|
||||||
|
|
||||||
|
Then, simply compile FFmpeg as usual (make && make install).
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
III - Using FFmpeg PowerPC performance support
|
||||||
|
|
||||||
|
This FFmeg can be used exactly as usual. But before exiting, FFmpeg
|
||||||
|
will dump a per-function report that looks like this:
|
||||||
|
|
||||||
|
#####
|
||||||
|
PowerPC performance report
|
||||||
|
Values are from the PMC registers, and represent whatever the
|
||||||
|
registers are set to record.
|
||||||
|
Function "gmc1_altivec" (pmc1):
|
||||||
|
min: 231
|
||||||
|
max: 1339867
|
||||||
|
avg: 558.25 (255302)
|
||||||
|
Function "gmc1_altivec" (pmc2):
|
||||||
|
min: 93
|
||||||
|
max: 2164
|
||||||
|
avg: 267.31 (255302)
|
||||||
|
Function "gmc1_altivec" (pmc3):
|
||||||
|
min: 72
|
||||||
|
max: 1987
|
||||||
|
avg: 276.20 (255302)
|
||||||
|
(...)
|
||||||
|
#####
|
||||||
|
|
||||||
|
In this example, PMC1 was set to record CPU cycles, PMC2 was set to
|
||||||
|
record AltiVec Permute Stall Cycles, and PMC3 was set to record AltiVec
|
||||||
|
Issue Stalls.
|
||||||
|
|
||||||
|
The function "gmc1_altivec" was monitored 255302 times, and the
|
||||||
|
minimum execution time was 231 processor cycles. The max and average
|
||||||
|
aren't much use, as it's very likely the OS interrupted execution for
|
||||||
|
reasons of its own :-(
|
||||||
|
|
||||||
|
With the exact same settings and source file, but using the reference C
|
||||||
|
code we get:
|
||||||
|
|
||||||
|
#####
|
||||||
|
PowerPC performance report
|
||||||
|
Values are from the PMC registers, and represent whatever the
|
||||||
|
registers are set to record.
|
||||||
|
Function "gmc1_altivec" (pmc1):
|
||||||
|
min: 592
|
||||||
|
max: 2532235
|
||||||
|
avg: 962.88 (255302)
|
||||||
|
Function "gmc1_altivec" (pmc2):
|
||||||
|
min: 0
|
||||||
|
max: 33
|
||||||
|
avg: 0.00 (255302)
|
||||||
|
Function "gmc1_altivec" (pmc3):
|
||||||
|
min: 0
|
||||||
|
max: 350
|
||||||
|
avg: 0.03 (255302)
|
||||||
|
(...)
|
||||||
|
#####
|
||||||
|
|
||||||
|
592 cycles, so the fastest AltiVec execution is about 2.5x faster than
|
||||||
|
the fastest C execution in this example. It's not perfect but it's not
|
||||||
|
bad (well I wrote this function so I can't say otherwise :-).
|
||||||
|
|
||||||
|
Once you have that kind of report, you can try to improve things by
|
||||||
|
finding what goes wrong and fixing it; in the example above, one
|
||||||
|
should try to diminish the number of AltiVec stalls, as this *may*
|
||||||
|
improve performance.
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
IV) Enabling the PMC in Mac OS X
|
||||||
|
|
||||||
|
This is easy. Use "Monster" and "monster". Those tools come from
|
||||||
|
Apple's CHUD package, and can be found hidden in the developer web
|
||||||
|
site & FTP site. "MONster" is the graphical application, use it to
|
||||||
|
generate a config file specifying what each register should
|
||||||
|
monitor. Then use the command-line application "monster" to use that
|
||||||
|
config file, and enjoy the results.
|
||||||
|
|
||||||
|
Note that "MONster" can be used for many other things, but it's
|
||||||
|
documented by Apple, it's not my subject.
|
||||||
|
|
||||||
|
If you are using CHUD 4.4.2 or later, you'll notice that MONster is
|
||||||
|
no longer available. It's been superseeded by Shark, where
|
||||||
|
configuration of PMCs is available as a plugin.
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
V) Enabling the PMC on Linux
|
||||||
|
|
||||||
|
On linux you may use oprofile from http://oprofile.sf.net, depending on the
|
||||||
|
version and the cpu you may need to apply a patch[1] to access a set of the
|
||||||
|
possibile counters from the userspace application. You can always define them
|
||||||
|
using the kernel interface /dev/oprofile/* .
|
||||||
|
|
||||||
|
[1] http://dev.gentoo.org/~lu_zero/development/oprofile-g4-20060423.patch
|
||||||
|
|
||||||
|
--
|
||||||
|
Romain Dolbeau <romain@dolbeau.org>
|
||||||
|
Luca Barbato <lu_zero@gentoo.org>
|
||||||
160
doc/ffplay-doc.texi
Normal file
160
doc/ffplay-doc.texi
Normal file
@@ -0,0 +1,160 @@
|
|||||||
|
\input texinfo @c -*- texinfo -*-
|
||||||
|
|
||||||
|
@settitle FFplay Documentation
|
||||||
|
@titlepage
|
||||||
|
@sp 7
|
||||||
|
@center @titlefont{FFplay Documentation}
|
||||||
|
@sp 3
|
||||||
|
@end titlepage
|
||||||
|
|
||||||
|
|
||||||
|
@chapter Introduction
|
||||||
|
|
||||||
|
@c man begin DESCRIPTION
|
||||||
|
FFplay is a very simple and portable media player using the FFmpeg
|
||||||
|
libraries and the SDL library. It is mostly used as a testbed for the
|
||||||
|
various FFmpeg APIs.
|
||||||
|
@c man end
|
||||||
|
|
||||||
|
@chapter Invocation
|
||||||
|
|
||||||
|
@section Syntax
|
||||||
|
@example
|
||||||
|
@c man begin SYNOPSIS
|
||||||
|
ffplay [options] @file{input_file}
|
||||||
|
@c man end
|
||||||
|
@end example
|
||||||
|
|
||||||
|
@c man begin OPTIONS
|
||||||
|
|
||||||
|
@include fftools-common-opts.texi
|
||||||
|
|
||||||
|
@section Main options
|
||||||
|
|
||||||
|
@table @option
|
||||||
|
@item -x @var{width}
|
||||||
|
Force displayed width.
|
||||||
|
@item -y @var{height}
|
||||||
|
Force displayed height.
|
||||||
|
@item -s @var{size}
|
||||||
|
Set frame size (WxH or abbreviation), needed for videos which don't
|
||||||
|
contain a header with the frame size like raw YUV.
|
||||||
|
@item -an
|
||||||
|
Disable audio.
|
||||||
|
@item -vn
|
||||||
|
Disable video.
|
||||||
|
@item -ss @var{pos}
|
||||||
|
Seek to a given position in seconds.
|
||||||
|
@item -t @var{duration}
|
||||||
|
play <duration> seconds of audio/video
|
||||||
|
@item -bytes
|
||||||
|
Seek by bytes.
|
||||||
|
@item -nodisp
|
||||||
|
Disable graphical display.
|
||||||
|
@item -f @var{fmt}
|
||||||
|
Force format.
|
||||||
|
@item -window_title @var{title}
|
||||||
|
Set window title (default is the input filename).
|
||||||
|
@item -loop @var{number}
|
||||||
|
Loops movie playback <number> times. 0 means forever.
|
||||||
|
@end table
|
||||||
|
|
||||||
|
@section Advanced options
|
||||||
|
@table @option
|
||||||
|
@item -pix_fmt @var{format}
|
||||||
|
Set pixel format.
|
||||||
|
@item -stats
|
||||||
|
Show the stream duration, the codec parameters, the current position in
|
||||||
|
the stream and the audio/video synchronisation drift.
|
||||||
|
@item -debug
|
||||||
|
Print specific debug info.
|
||||||
|
@item -bug
|
||||||
|
Work around bugs.
|
||||||
|
@item -vismv
|
||||||
|
Visualize motion vectors.
|
||||||
|
@item -fast
|
||||||
|
Non-spec-compliant optimizations.
|
||||||
|
@item -genpts
|
||||||
|
Generate pts.
|
||||||
|
@item -rtp_tcp
|
||||||
|
Force RTP/TCP protocol usage instead of RTP/UDP. It is only meaningful
|
||||||
|
if you are streaming with the RTSP protocol.
|
||||||
|
@item -sync @var{type}
|
||||||
|
Set the master clock to audio (@code{type=audio}), video
|
||||||
|
(@code{type=video}) or external (@code{type=ext}). Default is audio. The
|
||||||
|
master clock is used to control audio-video synchronization. Most media
|
||||||
|
players use audio as master clock, but in some cases (streaming or high
|
||||||
|
quality broadcast) it is necessary to change that. This option is mainly
|
||||||
|
used for debugging purposes.
|
||||||
|
@item -threads @var{count}
|
||||||
|
Set the thread count.
|
||||||
|
@item -ast @var{audio_stream_number}
|
||||||
|
Select the desired audio stream number, counting from 0. The number
|
||||||
|
refers to the list of all the input audio streams. If it is greater
|
||||||
|
than the number of audio streams minus one, then the last one is
|
||||||
|
selected, if it is negative the audio playback is disabled.
|
||||||
|
@item -vst @var{video_stream_number}
|
||||||
|
Select the desired video stream number, counting from 0. The number
|
||||||
|
refers to the list of all the input video streams. If it is greater
|
||||||
|
than the number of video streams minus one, then the last one is
|
||||||
|
selected, if it is negative the video playback is disabled.
|
||||||
|
@item -sst @var{subtitle_stream_number}
|
||||||
|
Select the desired subtitle stream number, counting from 0. The number
|
||||||
|
refers to the list of all the input subtitle streams. If it is greater
|
||||||
|
than the number of subtitle streams minus one, then the last one is
|
||||||
|
selected, if it is negative the subtitle rendering is disabled.
|
||||||
|
@end table
|
||||||
|
|
||||||
|
@section While playing
|
||||||
|
|
||||||
|
@table @key
|
||||||
|
@item q, ESC
|
||||||
|
Quit.
|
||||||
|
|
||||||
|
@item f
|
||||||
|
Toggle full screen.
|
||||||
|
|
||||||
|
@item p, SPC
|
||||||
|
Pause.
|
||||||
|
|
||||||
|
@item a
|
||||||
|
Cycle audio channel.
|
||||||
|
|
||||||
|
@item v
|
||||||
|
Cycle video channel.
|
||||||
|
|
||||||
|
@item t
|
||||||
|
Cycle subtitle channel.
|
||||||
|
|
||||||
|
@item w
|
||||||
|
Show audio waves.
|
||||||
|
|
||||||
|
@item left/right
|
||||||
|
Seek backward/forward 10 seconds.
|
||||||
|
|
||||||
|
@item down/up
|
||||||
|
Seek backward/forward 1 minute.
|
||||||
|
|
||||||
|
@item mouse click
|
||||||
|
Seek to percentage in file corresponding to fraction of width.
|
||||||
|
|
||||||
|
@end table
|
||||||
|
|
||||||
|
@c man end
|
||||||
|
|
||||||
|
@ignore
|
||||||
|
|
||||||
|
@setfilename ffplay
|
||||||
|
@settitle FFplay media player
|
||||||
|
|
||||||
|
@c man begin SEEALSO
|
||||||
|
ffmpeg(1), ffserver(1) and the HTML documentation of @file{ffmpeg}.
|
||||||
|
@c man end
|
||||||
|
|
||||||
|
@c man begin AUTHOR
|
||||||
|
Fabrice Bellard
|
||||||
|
@c man end
|
||||||
|
|
||||||
|
@end ignore
|
||||||
|
|
||||||
|
@bye
|
||||||
274
doc/ffplay.texi
274
doc/ffplay.texi
@@ -1,274 +0,0 @@
|
|||||||
\input texinfo @c -*- texinfo -*-
|
|
||||||
|
|
||||||
@settitle ffplay Documentation
|
|
||||||
@titlepage
|
|
||||||
@center @titlefont{ffplay Documentation}
|
|
||||||
@end titlepage
|
|
||||||
|
|
||||||
@top
|
|
||||||
|
|
||||||
@contents
|
|
||||||
|
|
||||||
@chapter Synopsis
|
|
||||||
|
|
||||||
ffplay [@var{options}] [@file{input_file}]
|
|
||||||
|
|
||||||
@chapter Description
|
|
||||||
@c man begin DESCRIPTION
|
|
||||||
|
|
||||||
FFplay is a very simple and portable media player using the FFmpeg
|
|
||||||
libraries and the SDL library. It is mostly used as a testbed for the
|
|
||||||
various FFmpeg APIs.
|
|
||||||
@c man end
|
|
||||||
|
|
||||||
@chapter Options
|
|
||||||
@c man begin OPTIONS
|
|
||||||
|
|
||||||
@include avtools-common-opts.texi
|
|
||||||
|
|
||||||
@section Main options
|
|
||||||
|
|
||||||
@table @option
|
|
||||||
@item -x @var{width}
|
|
||||||
Force displayed width.
|
|
||||||
@item -y @var{height}
|
|
||||||
Force displayed height.
|
|
||||||
@item -s @var{size}
|
|
||||||
Set frame size (WxH or abbreviation), needed for videos which do
|
|
||||||
not contain a header with the frame size like raw YUV. This option
|
|
||||||
has been deprecated in favor of private options, try -video_size.
|
|
||||||
@item -an
|
|
||||||
Disable audio.
|
|
||||||
@item -vn
|
|
||||||
Disable video.
|
|
||||||
@item -ss @var{pos}
|
|
||||||
Seek to a given position in seconds.
|
|
||||||
@item -t @var{duration}
|
|
||||||
play <duration> seconds of audio/video
|
|
||||||
@item -bytes
|
|
||||||
Seek by bytes.
|
|
||||||
@item -nodisp
|
|
||||||
Disable graphical display.
|
|
||||||
@item -f @var{fmt}
|
|
||||||
Force format.
|
|
||||||
@item -window_title @var{title}
|
|
||||||
Set window title (default is the input filename).
|
|
||||||
@item -loop @var{number}
|
|
||||||
Loops movie playback <number> times. 0 means forever.
|
|
||||||
@item -showmode @var{mode}
|
|
||||||
Set the show mode to use.
|
|
||||||
Available values for @var{mode} are:
|
|
||||||
@table @samp
|
|
||||||
@item 0, video
|
|
||||||
show video
|
|
||||||
@item 1, waves
|
|
||||||
show audio waves
|
|
||||||
@item 2, rdft
|
|
||||||
show audio frequency band using RDFT ((Inverse) Real Discrete Fourier Transform)
|
|
||||||
@end table
|
|
||||||
|
|
||||||
Default value is "video", if video is not present or cannot be played
|
|
||||||
"rdft" is automatically selected.
|
|
||||||
|
|
||||||
You can interactively cycle through the available show modes by
|
|
||||||
pressing the key @key{w}.
|
|
||||||
|
|
||||||
@item -vf @var{filtergraph}
|
|
||||||
Create the filtergraph specified by @var{filtergraph} and use it to
|
|
||||||
filter the video stream.
|
|
||||||
|
|
||||||
@var{filtergraph} is a description of the filtergraph to apply to
|
|
||||||
the stream, and must have a single video input and a single video
|
|
||||||
output. In the filtergraph, the input is associated to the label
|
|
||||||
@code{in}, and the output to the label @code{out}. See the
|
|
||||||
ffmpeg-filters manual for more information about the filtergraph
|
|
||||||
syntax.
|
|
||||||
|
|
||||||
@item -af @var{filtergraph}
|
|
||||||
@var{filtergraph} is a description of the filtergraph to apply to
|
|
||||||
the input audio.
|
|
||||||
Use the option "-filters" to show all the available filters (including
|
|
||||||
sources and sinks).
|
|
||||||
|
|
||||||
@item -i @var{input_file}
|
|
||||||
Read @var{input_file}.
|
|
||||||
@end table
|
|
||||||
|
|
||||||
@section Advanced options
|
|
||||||
@table @option
|
|
||||||
@item -pix_fmt @var{format}
|
|
||||||
Set pixel format.
|
|
||||||
This option has been deprecated in favor of private options, try -pixel_format.
|
|
||||||
|
|
||||||
@item -stats
|
|
||||||
Print several playback statistics, in particular show the stream
|
|
||||||
duration, the codec parameters, the current position in the stream and
|
|
||||||
the audio/video synchronisation drift. It is on by default, to
|
|
||||||
explicitly disable it you need to specify @code{-nostats}.
|
|
||||||
|
|
||||||
@item -bug
|
|
||||||
Work around bugs.
|
|
||||||
@item -fast
|
|
||||||
Non-spec-compliant optimizations.
|
|
||||||
@item -genpts
|
|
||||||
Generate pts.
|
|
||||||
@item -rtp_tcp
|
|
||||||
Force RTP/TCP protocol usage instead of RTP/UDP. It is only meaningful
|
|
||||||
if you are streaming with the RTSP protocol.
|
|
||||||
@item -sync @var{type}
|
|
||||||
Set the master clock to audio (@code{type=audio}), video
|
|
||||||
(@code{type=video}) or external (@code{type=ext}). Default is audio. The
|
|
||||||
master clock is used to control audio-video synchronization. Most media
|
|
||||||
players use audio as master clock, but in some cases (streaming or high
|
|
||||||
quality broadcast) it is necessary to change that. This option is mainly
|
|
||||||
used for debugging purposes.
|
|
||||||
@item -threads @var{count}
|
|
||||||
Set the thread count.
|
|
||||||
@item -ast @var{audio_stream_number}
|
|
||||||
Select the desired audio stream number, counting from 0. The number
|
|
||||||
refers to the list of all the input audio streams. If it is greater
|
|
||||||
than the number of audio streams minus one, then the last one is
|
|
||||||
selected, if it is negative the audio playback is disabled.
|
|
||||||
@item -vst @var{video_stream_number}
|
|
||||||
Select the desired video stream number, counting from 0. The number
|
|
||||||
refers to the list of all the input video streams. If it is greater
|
|
||||||
than the number of video streams minus one, then the last one is
|
|
||||||
selected, if it is negative the video playback is disabled.
|
|
||||||
@item -sst @var{subtitle_stream_number}
|
|
||||||
Select the desired subtitle stream number, counting from 0. The number
|
|
||||||
refers to the list of all the input subtitle streams. If it is greater
|
|
||||||
than the number of subtitle streams minus one, then the last one is
|
|
||||||
selected, if it is negative the subtitle rendering is disabled.
|
|
||||||
@item -autoexit
|
|
||||||
Exit when video is done playing.
|
|
||||||
@item -exitonkeydown
|
|
||||||
Exit if any key is pressed.
|
|
||||||
@item -exitonmousedown
|
|
||||||
Exit if any mouse button is pressed.
|
|
||||||
|
|
||||||
@item -codec:@var{media_specifier} @var{codec_name}
|
|
||||||
Force a specific decoder implementation for the stream identified by
|
|
||||||
@var{media_specifier}, which can assume the values @code{a} (audio),
|
|
||||||
@code{v} (video), and @code{s} subtitle.
|
|
||||||
|
|
||||||
@item -acodec @var{codec_name}
|
|
||||||
Force a specific audio decoder.
|
|
||||||
|
|
||||||
@item -vcodec @var{codec_name}
|
|
||||||
Force a specific video decoder.
|
|
||||||
|
|
||||||
@item -scodec @var{codec_name}
|
|
||||||
Force a specific subtitle decoder.
|
|
||||||
@end table
|
|
||||||
|
|
||||||
@section While playing
|
|
||||||
|
|
||||||
@table @key
|
|
||||||
@item q, ESC
|
|
||||||
Quit.
|
|
||||||
|
|
||||||
@item f
|
|
||||||
Toggle full screen.
|
|
||||||
|
|
||||||
@item p, SPC
|
|
||||||
Pause.
|
|
||||||
|
|
||||||
@item a
|
|
||||||
Cycle audio channel.
|
|
||||||
|
|
||||||
@item v
|
|
||||||
Cycle video channel.
|
|
||||||
|
|
||||||
@item t
|
|
||||||
Cycle subtitle channel.
|
|
||||||
|
|
||||||
@item w
|
|
||||||
Show audio waves.
|
|
||||||
|
|
||||||
@item left/right
|
|
||||||
Seek backward/forward 10 seconds.
|
|
||||||
|
|
||||||
@item down/up
|
|
||||||
Seek backward/forward 1 minute.
|
|
||||||
|
|
||||||
@item page down/page up
|
|
||||||
Seek backward/forward 10 minutes.
|
|
||||||
|
|
||||||
@item mouse click
|
|
||||||
Seek to percentage in file corresponding to fraction of width.
|
|
||||||
|
|
||||||
@end table
|
|
||||||
|
|
||||||
@c man end
|
|
||||||
|
|
||||||
@include config.texi
|
|
||||||
@ifset config-all
|
|
||||||
@ifset config-avutil
|
|
||||||
@include utils.texi
|
|
||||||
@end ifset
|
|
||||||
@ifset config-avcodec
|
|
||||||
@include codecs.texi
|
|
||||||
@include bitstream_filters.texi
|
|
||||||
@end ifset
|
|
||||||
@ifset config-avformat
|
|
||||||
@include formats.texi
|
|
||||||
@include protocols.texi
|
|
||||||
@end ifset
|
|
||||||
@ifset config-avdevice
|
|
||||||
@include devices.texi
|
|
||||||
@end ifset
|
|
||||||
@ifset config-swresample
|
|
||||||
@include resampler.texi
|
|
||||||
@end ifset
|
|
||||||
@ifset config-swscale
|
|
||||||
@include scaler.texi
|
|
||||||
@end ifset
|
|
||||||
@ifset config-avfilter
|
|
||||||
@include filters.texi
|
|
||||||
@end ifset
|
|
||||||
@end ifset
|
|
||||||
|
|
||||||
@chapter See Also
|
|
||||||
|
|
||||||
@ifhtml
|
|
||||||
@ifset config-all
|
|
||||||
@url{ffplay.html,ffplay},
|
|
||||||
@end ifset
|
|
||||||
@ifset config-not-all
|
|
||||||
@url{ffplay-all.html,ffmpeg-all},
|
|
||||||
@end ifset
|
|
||||||
@url{ffmpeg.html,ffmpeg}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
|
|
||||||
@url{ffmpeg-utils.html,ffmpeg-utils},
|
|
||||||
@url{ffmpeg-scaler.html,ffmpeg-scaler},
|
|
||||||
@url{ffmpeg-resampler.html,ffmpeg-resampler},
|
|
||||||
@url{ffmpeg-codecs.html,ffmpeg-codecs},
|
|
||||||
@url{ffmpeg-bitstream-filters.html,ffmpeg-bitstream-filters},
|
|
||||||
@url{ffmpeg-formats.html,ffmpeg-formats},
|
|
||||||
@url{ffmpeg-devices.html,ffmpeg-devices},
|
|
||||||
@url{ffmpeg-protocols.html,ffmpeg-protocols},
|
|
||||||
@url{ffmpeg-filters.html,ffmpeg-filters}
|
|
||||||
@end ifhtml
|
|
||||||
|
|
||||||
@ifnothtml
|
|
||||||
@ifset config-all
|
|
||||||
ffplay(1),
|
|
||||||
@end ifset
|
|
||||||
@ifset config-not-all
|
|
||||||
ffplay-all(1),
|
|
||||||
@end ifset
|
|
||||||
ffmpeg(1), ffprobe(1), ffserver(1),
|
|
||||||
ffmpeg-utils(1), ffmpeg-scaler(1), ffmpeg-resampler(1),
|
|
||||||
ffmpeg-codecs(1), ffmpeg-bitstream-filters(1), ffmpeg-formats(1),
|
|
||||||
ffmpeg-devices(1), ffmpeg-protocols(1), ffmpeg-filters(1)
|
|
||||||
@end ifnothtml
|
|
||||||
|
|
||||||
@include authors.texi
|
|
||||||
|
|
||||||
@ignore
|
|
||||||
|
|
||||||
@setfilename ffplay
|
|
||||||
@settitle FFplay media player
|
|
||||||
|
|
||||||
@end ignore
|
|
||||||
|
|
||||||
@bye
|
|
||||||
121
doc/ffprobe-doc.texi
Normal file
121
doc/ffprobe-doc.texi
Normal file
@@ -0,0 +1,121 @@
|
|||||||
|
\input texinfo @c -*- texinfo -*-
|
||||||
|
|
||||||
|
@settitle FFprobe Documentation
|
||||||
|
@titlepage
|
||||||
|
@sp 7
|
||||||
|
@center @titlefont{FFprobe Documentation}
|
||||||
|
@sp 3
|
||||||
|
@end titlepage
|
||||||
|
|
||||||
|
@chapter Introduction
|
||||||
|
|
||||||
|
@c man begin DESCRIPTION
|
||||||
|
|
||||||
|
FFprobe gathers information from multimedia streams and prints it in
|
||||||
|
human- and machine-readable fashion.
|
||||||
|
|
||||||
|
For example it can be used to check the format of the container used
|
||||||
|
by a multimedia stream and the format and type of each media stream
|
||||||
|
contained in it.
|
||||||
|
|
||||||
|
If a filename is specified in input, ffprobe will try to open and
|
||||||
|
probe the file content. If the file cannot be opened or recognized as
|
||||||
|
a multimedia file, a positive exit code is returned.
|
||||||
|
|
||||||
|
FFprobe may be employed both as a standalone application or in
|
||||||
|
combination with a textual filter, which may perform more
|
||||||
|
sophisticated processing, e.g. statistical processing or plotting.
|
||||||
|
|
||||||
|
Options are used to list some of the formats supported by ffprobe or
|
||||||
|
for specifying which information to display, and for setting how
|
||||||
|
ffprobe will show it.
|
||||||
|
|
||||||
|
FFprobe output is designed to be easily parsable by a textual filter,
|
||||||
|
and consists of one or more sections of the form:
|
||||||
|
@example
|
||||||
|
[SECTION]
|
||||||
|
key1=val1
|
||||||
|
...
|
||||||
|
keyN=valN
|
||||||
|
[/SECTION]
|
||||||
|
@end example
|
||||||
|
|
||||||
|
Metadata tags stored in the container or in the streams are recognized
|
||||||
|
and printed in the corresponding ``FORMAT'' or ``STREAM'' section, and
|
||||||
|
are prefixed by the string ``TAG:''.
|
||||||
|
|
||||||
|
@c man end
|
||||||
|
|
||||||
|
@chapter Invocation
|
||||||
|
|
||||||
|
@section Syntax
|
||||||
|
|
||||||
|
The generic syntax is:
|
||||||
|
|
||||||
|
@example
|
||||||
|
@c man begin SYNOPSIS
|
||||||
|
ffprobe [options] [@file{input_file}]
|
||||||
|
@c man end
|
||||||
|
@end example
|
||||||
|
|
||||||
|
@c man begin OPTIONS
|
||||||
|
|
||||||
|
@include fftools-common-opts.texi
|
||||||
|
|
||||||
|
@section Main options
|
||||||
|
|
||||||
|
@table @option
|
||||||
|
|
||||||
|
@item -convert_tags
|
||||||
|
Convert the tag names in the format container to the generic FFmpeg tag names.
|
||||||
|
|
||||||
|
@item -f @var{format}
|
||||||
|
Force format to use.
|
||||||
|
|
||||||
|
@item -unit
|
||||||
|
Show the unit of the displayed values.
|
||||||
|
|
||||||
|
@item -prefix
|
||||||
|
Show a SI prefixes of the displayed values.
|
||||||
|
Unless ``-byte_binary_prefix'' option is used all the prefix
|
||||||
|
are decimal.
|
||||||
|
|
||||||
|
@item -byte_binary_prefix
|
||||||
|
Force the use of binary prefixes for byte values.
|
||||||
|
|
||||||
|
@item -sexagesimal
|
||||||
|
Use sexagesimal format HH:MM:SS.MICROSECONDS for time values.
|
||||||
|
|
||||||
|
@item -pretty
|
||||||
|
Prettify the format of the displayed values, it corresponds to the
|
||||||
|
options ``-unit -prefix -byte_binary_prefix -sexagesimal''.
|
||||||
|
|
||||||
|
@item -show_format
|
||||||
|
Show information about the container format of the input multimedia
|
||||||
|
stream.
|
||||||
|
|
||||||
|
All the container format information is printed within a section with
|
||||||
|
name ``FORMAT''.
|
||||||
|
|
||||||
|
@item -show_streams
|
||||||
|
Show information about each media stream contained in the input
|
||||||
|
multimedia stream.
|
||||||
|
|
||||||
|
Each media stream information is printed within a dedicated section
|
||||||
|
with name ``STREAM''.
|
||||||
|
|
||||||
|
@end table
|
||||||
|
@c man end
|
||||||
|
|
||||||
|
@ignore
|
||||||
|
|
||||||
|
@setfilename ffprobe
|
||||||
|
@settitle FFprobe media prober
|
||||||
|
|
||||||
|
@c man begin SEEALSO
|
||||||
|
ffmpeg(1), ffplay(1), ffserver(1)
|
||||||
|
@c man end
|
||||||
|
|
||||||
|
@end ignore
|
||||||
|
|
||||||
|
@bye
|
||||||
565
doc/ffprobe.texi
565
doc/ffprobe.texi
@@ -1,565 +0,0 @@
|
|||||||
\input texinfo @c -*- texinfo -*-
|
|
||||||
|
|
||||||
@settitle ffprobe Documentation
|
|
||||||
@titlepage
|
|
||||||
@center @titlefont{ffprobe Documentation}
|
|
||||||
@end titlepage
|
|
||||||
|
|
||||||
@top
|
|
||||||
|
|
||||||
@contents
|
|
||||||
|
|
||||||
@chapter Synopsis
|
|
||||||
|
|
||||||
ffprobe [@var{options}] [@file{input_file}]
|
|
||||||
|
|
||||||
@chapter Description
|
|
||||||
@c man begin DESCRIPTION
|
|
||||||
|
|
||||||
ffprobe gathers information from multimedia streams and prints it in
|
|
||||||
human- and machine-readable fashion.
|
|
||||||
|
|
||||||
For example it can be used to check the format of the container used
|
|
||||||
by a multimedia stream and the format and type of each media stream
|
|
||||||
contained in it.
|
|
||||||
|
|
||||||
If a filename is specified in input, ffprobe will try to open and
|
|
||||||
probe the file content. If the file cannot be opened or recognized as
|
|
||||||
a multimedia file, a positive exit code is returned.
|
|
||||||
|
|
||||||
ffprobe may be employed both as a standalone application or in
|
|
||||||
combination with a textual filter, which may perform more
|
|
||||||
sophisticated processing, e.g. statistical processing or plotting.
|
|
||||||
|
|
||||||
Options are used to list some of the formats supported by ffprobe or
|
|
||||||
for specifying which information to display, and for setting how
|
|
||||||
ffprobe will show it.
|
|
||||||
|
|
||||||
ffprobe output is designed to be easily parsable by a textual filter,
|
|
||||||
and consists of one or more sections of a form defined by the selected
|
|
||||||
writer, which is specified by the @option{print_format} option.
|
|
||||||
|
|
||||||
Sections may contain other nested sections, and are identified by a
|
|
||||||
name (which may be shared by other sections), and an unique
|
|
||||||
name. See the output of @option{sections}.
|
|
||||||
|
|
||||||
Metadata tags stored in the container or in the streams are recognized
|
|
||||||
and printed in the corresponding "FORMAT" or "STREAM" section.
|
|
||||||
|
|
||||||
@c man end
|
|
||||||
|
|
||||||
@chapter Options
|
|
||||||
@c man begin OPTIONS
|
|
||||||
|
|
||||||
@include avtools-common-opts.texi
|
|
||||||
|
|
||||||
@section Main options
|
|
||||||
|
|
||||||
@table @option
|
|
||||||
|
|
||||||
@item -f @var{format}
|
|
||||||
Force format to use.
|
|
||||||
|
|
||||||
@item -unit
|
|
||||||
Show the unit of the displayed values.
|
|
||||||
|
|
||||||
@item -prefix
|
|
||||||
Use SI prefixes for the displayed values.
|
|
||||||
Unless the "-byte_binary_prefix" option is used all the prefixes
|
|
||||||
are decimal.
|
|
||||||
|
|
||||||
@item -byte_binary_prefix
|
|
||||||
Force the use of binary prefixes for byte values.
|
|
||||||
|
|
||||||
@item -sexagesimal
|
|
||||||
Use sexagesimal format HH:MM:SS.MICROSECONDS for time values.
|
|
||||||
|
|
||||||
@item -pretty
|
|
||||||
Prettify the format of the displayed values, it corresponds to the
|
|
||||||
options "-unit -prefix -byte_binary_prefix -sexagesimal".
|
|
||||||
|
|
||||||
@item -of, -print_format @var{writer_name}[=@var{writer_options}]
|
|
||||||
Set the output printing format.
|
|
||||||
|
|
||||||
@var{writer_name} specifies the name of the writer, and
|
|
||||||
@var{writer_options} specifies the options to be passed to the writer.
|
|
||||||
|
|
||||||
For example for printing the output in JSON format, specify:
|
|
||||||
@example
|
|
||||||
-print_format json
|
|
||||||
@end example
|
|
||||||
|
|
||||||
For more details on the available output printing formats, see the
|
|
||||||
Writers section below.
|
|
||||||
|
|
||||||
@item -sections
|
|
||||||
Print sections structure and section information, and exit. The output
|
|
||||||
is not meant to be parsed by a machine.
|
|
||||||
|
|
||||||
@item -select_streams @var{stream_specifier}
|
|
||||||
Select only the streams specified by @var{stream_specifier}. This
|
|
||||||
option affects only the options related to streams
|
|
||||||
(e.g. @code{show_streams}, @code{show_packets}, etc.).
|
|
||||||
|
|
||||||
For example to show only audio streams, you can use the command:
|
|
||||||
@example
|
|
||||||
ffprobe -show_streams -select_streams a INPUT
|
|
||||||
@end example
|
|
||||||
|
|
||||||
To show only video packets belonging to the video stream with index 1:
|
|
||||||
@example
|
|
||||||
ffprobe -show_packets -select_streams v:1 INPUT
|
|
||||||
@end example
|
|
||||||
|
|
||||||
@item -show_data
|
|
||||||
Show payload data, as an hexadecimal and ASCII dump. Coupled with
|
|
||||||
@option{-show_packets}, it will dump the packets' data. Coupled with
|
|
||||||
@option{-show_streams}, it will dump the codec extradata.
|
|
||||||
|
|
||||||
The dump is printed as the "data" field. It may contain newlines.
|
|
||||||
|
|
||||||
@item -show_error
|
|
||||||
Show information about the error found when trying to probe the input.
|
|
||||||
|
|
||||||
The error information is printed within a section with name "ERROR".
|
|
||||||
|
|
||||||
@item -show_format
|
|
||||||
Show information about the container format of the input multimedia
|
|
||||||
stream.
|
|
||||||
|
|
||||||
All the container format information is printed within a section with
|
|
||||||
name "FORMAT".
|
|
||||||
|
|
||||||
@item -show_format_entry @var{name}
|
|
||||||
Like @option{-show_format}, but only prints the specified entry of the
|
|
||||||
container format information, rather than all. This option may be given more
|
|
||||||
than once, then all specified entries will be shown.
|
|
||||||
|
|
||||||
This option is deprecated, use @code{show_entries} instead.
|
|
||||||
|
|
||||||
@item -show_entries @var{section_entries}
|
|
||||||
Set list of entries to show.
|
|
||||||
|
|
||||||
Entries are specified according to the following
|
|
||||||
syntax. @var{section_entries} contains a list of section entries
|
|
||||||
separated by @code{:}. Each section entry is composed by a section
|
|
||||||
name (or unique name), optionally followed by a list of entries local
|
|
||||||
to that section, separated by @code{,}.
|
|
||||||
|
|
||||||
If section name is specified but is followed by no @code{=}, all
|
|
||||||
entries are printed to output, together with all the contained
|
|
||||||
sections. Otherwise only the entries specified in the local section
|
|
||||||
entries list are printed. In particular, if @code{=} is specified but
|
|
||||||
the list of local entries is empty, then no entries will be shown for
|
|
||||||
that section.
|
|
||||||
|
|
||||||
Note that the order of specification of the local section entries is
|
|
||||||
not honored in the output, and the usual display order will be
|
|
||||||
retained.
|
|
||||||
|
|
||||||
The formal syntax is given by:
|
|
||||||
@example
|
|
||||||
@var{LOCAL_SECTION_ENTRIES} ::= @var{SECTION_ENTRY_NAME}[,@var{LOCAL_SECTION_ENTRIES}]
|
|
||||||
@var{SECTION_ENTRY} ::= @var{SECTION_NAME}[=[@var{LOCAL_SECTION_ENTRIES}]]
|
|
||||||
@var{SECTION_ENTRIES} ::= @var{SECTION_ENTRY}[:@var{SECTION_ENTRIES}]
|
|
||||||
@end example
|
|
||||||
|
|
||||||
For example, to show only the index and type of each stream, and the PTS
|
|
||||||
time, duration time, and stream index of the packets, you can specify
|
|
||||||
the argument:
|
|
||||||
@example
|
|
||||||
packet=pts_time,duration_time,stream_index : stream=index,codec_type
|
|
||||||
@end example
|
|
||||||
|
|
||||||
To show all the entries in the section "format", but only the codec
|
|
||||||
type in the section "stream", specify the argument:
|
|
||||||
@example
|
|
||||||
format : stream=codec_type
|
|
||||||
@end example
|
|
||||||
|
|
||||||
To show all the tags in the stream and format sections:
|
|
||||||
@example
|
|
||||||
format_tags : format_tags
|
|
||||||
@end example
|
|
||||||
|
|
||||||
To show only the @code{title} tag (if available) in the stream
|
|
||||||
sections:
|
|
||||||
@example
|
|
||||||
stream_tags=title
|
|
||||||
@end example
|
|
||||||
|
|
||||||
@item -show_packets
|
|
||||||
Show information about each packet contained in the input multimedia
|
|
||||||
stream.
|
|
||||||
|
|
||||||
The information for each single packet is printed within a dedicated
|
|
||||||
section with name "PACKET".
|
|
||||||
|
|
||||||
@item -show_frames
|
|
||||||
Show information about each frame contained in the input multimedia
|
|
||||||
stream.
|
|
||||||
|
|
||||||
The information for each single frame is printed within a dedicated
|
|
||||||
section with name "FRAME".
|
|
||||||
|
|
||||||
@item -show_streams
|
|
||||||
Show information about each media stream contained in the input
|
|
||||||
multimedia stream.
|
|
||||||
|
|
||||||
Each media stream information is printed within a dedicated section
|
|
||||||
with name "STREAM".
|
|
||||||
|
|
||||||
@item -show_chapters
|
|
||||||
Show information about chapters stored in the format.
|
|
||||||
|
|
||||||
Each chapter is printed within a dedicated section with name "CHAPTER".
|
|
||||||
|
|
||||||
@item -count_frames
|
|
||||||
Count the number of frames per stream and report it in the
|
|
||||||
corresponding stream section.
|
|
||||||
|
|
||||||
@item -count_packets
|
|
||||||
Count the number of packets per stream and report it in the
|
|
||||||
corresponding stream section.
|
|
||||||
|
|
||||||
@item -show_private_data, -private
|
|
||||||
Show private data, that is data depending on the format of the
|
|
||||||
particular shown element.
|
|
||||||
This option is enabled by default, but you may need to disable it
|
|
||||||
for specific uses, for example when creating XSD-compliant XML output.
|
|
||||||
|
|
||||||
@item -show_program_version
|
|
||||||
Show information related to program version.
|
|
||||||
|
|
||||||
Version information is printed within a section with name
|
|
||||||
"PROGRAM_VERSION".
|
|
||||||
|
|
||||||
@item -show_library_versions
|
|
||||||
Show information related to library versions.
|
|
||||||
|
|
||||||
Version information for each library is printed within a section with
|
|
||||||
name "LIBRARY_VERSION".
|
|
||||||
|
|
||||||
@item -show_versions
|
|
||||||
Show information related to program and library versions. This is the
|
|
||||||
equivalent of setting both @option{-show_program_version} and
|
|
||||||
@option{-show_library_versions} options.
|
|
||||||
|
|
||||||
@item -bitexact
|
|
||||||
Force bitexact output, useful to produce output which is not dependent
|
|
||||||
on the specific build.
|
|
||||||
|
|
||||||
@item -i @var{input_file}
|
|
||||||
Read @var{input_file}.
|
|
||||||
|
|
||||||
@end table
|
|
||||||
@c man end
|
|
||||||
|
|
||||||
@chapter Writers
|
|
||||||
@c man begin WRITERS
|
|
||||||
|
|
||||||
A writer defines the output format adopted by @command{ffprobe}, and will be
|
|
||||||
used for printing all the parts of the output.
|
|
||||||
|
|
||||||
A writer may accept one or more arguments, which specify the options
|
|
||||||
to adopt. The options are specified as a list of @var{key}=@var{value}
|
|
||||||
pairs, separated by ":".
|
|
||||||
|
|
||||||
A description of the currently available writers follows.
|
|
||||||
|
|
||||||
@section default
|
|
||||||
Default format.
|
|
||||||
|
|
||||||
Print each section in the form:
|
|
||||||
@example
|
|
||||||
[SECTION]
|
|
||||||
key1=val1
|
|
||||||
...
|
|
||||||
keyN=valN
|
|
||||||
[/SECTION]
|
|
||||||
@end example
|
|
||||||
|
|
||||||
Metadata tags are printed as a line in the corresponding FORMAT or
|
|
||||||
STREAM section, and are prefixed by the string "TAG:".
|
|
||||||
|
|
||||||
A description of the accepted options follows.
|
|
||||||
|
|
||||||
@table @option
|
|
||||||
|
|
||||||
@item nokey, nk
|
|
||||||
If set to 1 specify not to print the key of each field. Default value
|
|
||||||
is 0.
|
|
||||||
|
|
||||||
@item noprint_wrappers, nw
|
|
||||||
If set to 1 specify not to print the section header and footer.
|
|
||||||
Default value is 0.
|
|
||||||
@end table
|
|
||||||
|
|
||||||
@section compact, csv
|
|
||||||
Compact and CSV format.
|
|
||||||
|
|
||||||
The @code{csv} writer is equivalent to @code{compact}, but supports
|
|
||||||
different defaults.
|
|
||||||
|
|
||||||
Each section is printed on a single line.
|
|
||||||
If no option is specifid, the output has the form:
|
|
||||||
@example
|
|
||||||
section|key1=val1| ... |keyN=valN
|
|
||||||
@end example
|
|
||||||
|
|
||||||
Metadata tags are printed in the corresponding "format" or "stream"
|
|
||||||
section. A metadata tag key, if printed, is prefixed by the string
|
|
||||||
"tag:".
|
|
||||||
|
|
||||||
The description of the accepted options follows.
|
|
||||||
|
|
||||||
@table @option
|
|
||||||
|
|
||||||
@item item_sep, s
|
|
||||||
Specify the character to use for separating fields in the output line.
|
|
||||||
It must be a single printable character, it is "|" by default ("," for
|
|
||||||
the @code{csv} writer).
|
|
||||||
|
|
||||||
@item nokey, nk
|
|
||||||
If set to 1 specify not to print the key of each field. Its default
|
|
||||||
value is 0 (1 for the @code{csv} writer).
|
|
||||||
|
|
||||||
@item escape, e
|
|
||||||
Set the escape mode to use, default to "c" ("csv" for the @code{csv}
|
|
||||||
writer).
|
|
||||||
|
|
||||||
It can assume one of the following values:
|
|
||||||
@table @option
|
|
||||||
@item c
|
|
||||||
Perform C-like escaping. Strings containing a newline ('\n'), carriage
|
|
||||||
return ('\r'), a tab ('\t'), a form feed ('\f'), the escaping
|
|
||||||
character ('\') or the item separator character @var{SEP} are escaped using C-like fashioned
|
|
||||||
escaping, so that a newline is converted to the sequence "\n", a
|
|
||||||
carriage return to "\r", '\' to "\\" and the separator @var{SEP} is
|
|
||||||
converted to "\@var{SEP}".
|
|
||||||
|
|
||||||
@item csv
|
|
||||||
Perform CSV-like escaping, as described in RFC4180. Strings
|
|
||||||
containing a newline ('\n'), a carriage return ('\r'), a double quote
|
|
||||||
('"'), or @var{SEP} are enclosed in double-quotes.
|
|
||||||
|
|
||||||
@item none
|
|
||||||
Perform no escaping.
|
|
||||||
@end table
|
|
||||||
|
|
||||||
@item print_section, p
|
|
||||||
Print the section name at the begin of each line if the value is
|
|
||||||
@code{1}, disable it with value set to @code{0}. Default value is
|
|
||||||
@code{1}.
|
|
||||||
|
|
||||||
@end table
|
|
||||||
|
|
||||||
@section flat
|
|
||||||
Flat format.
|
|
||||||
|
|
||||||
A free-form output where each line contains an explicit key=value, such as
|
|
||||||
"streams.stream.3.tags.foo=bar". The output is shell escaped, so it can be
|
|
||||||
directly embedded in sh scripts as long as the separator character is an
|
|
||||||
alphanumeric character or an underscore (see @var{sep_char} option).
|
|
||||||
|
|
||||||
The description of the accepted options follows.
|
|
||||||
|
|
||||||
@table @option
|
|
||||||
@item sep_char, s
|
|
||||||
Separator character used to separate the chapter, the section name, IDs and
|
|
||||||
potential tags in the printed field key.
|
|
||||||
|
|
||||||
Default value is '.'.
|
|
||||||
|
|
||||||
@item hierarchical, h
|
|
||||||
Specify if the section name specification should be hierarchical. If
|
|
||||||
set to 1, and if there is more than one section in the current
|
|
||||||
chapter, the section name will be prefixed by the name of the
|
|
||||||
chapter. A value of 0 will disable this behavior.
|
|
||||||
|
|
||||||
Default value is 1.
|
|
||||||
@end table
|
|
||||||
|
|
||||||
@section ini
|
|
||||||
INI format output.
|
|
||||||
|
|
||||||
Print output in an INI based format.
|
|
||||||
|
|
||||||
The following conventions are adopted:
|
|
||||||
|
|
||||||
@itemize
|
|
||||||
@item
|
|
||||||
all key and values are UTF-8
|
|
||||||
@item
|
|
||||||
'.' is the subgroup separator
|
|
||||||
@item
|
|
||||||
newline, '\t', '\f', '\b' and the following characters are escaped
|
|
||||||
@item
|
|
||||||
'\' is the escape character
|
|
||||||
@item
|
|
||||||
'#' is the comment indicator
|
|
||||||
@item
|
|
||||||
'=' is the key/value separator
|
|
||||||
@item
|
|
||||||
':' is not used but usually parsed as key/value separator
|
|
||||||
@end itemize
|
|
||||||
|
|
||||||
This writer accepts options as a list of @var{key}=@var{value} pairs,
|
|
||||||
separated by ":".
|
|
||||||
|
|
||||||
The description of the accepted options follows.
|
|
||||||
|
|
||||||
@table @option
|
|
||||||
@item hierarchical, h
|
|
||||||
Specify if the section name specification should be hierarchical. If
|
|
||||||
set to 1, and if there is more than one section in the current
|
|
||||||
chapter, the section name will be prefixed by the name of the
|
|
||||||
chapter. A value of 0 will disable this behavior.
|
|
||||||
|
|
||||||
Default value is 1.
|
|
||||||
@end table
|
|
||||||
|
|
||||||
@section json
|
|
||||||
JSON based format.
|
|
||||||
|
|
||||||
Each section is printed using JSON notation.
|
|
||||||
|
|
||||||
The description of the accepted options follows.
|
|
||||||
|
|
||||||
@table @option
|
|
||||||
|
|
||||||
@item compact, c
|
|
||||||
If set to 1 enable compact output, that is each section will be
|
|
||||||
printed on a single line. Default value is 0.
|
|
||||||
@end table
|
|
||||||
|
|
||||||
For more information about JSON, see @url{http://www.json.org/}.
|
|
||||||
|
|
||||||
@section xml
|
|
||||||
XML based format.
|
|
||||||
|
|
||||||
The XML output is described in the XML schema description file
|
|
||||||
@file{ffprobe.xsd} installed in the FFmpeg datadir.
|
|
||||||
|
|
||||||
An updated version of the schema can be retrieved at the url
|
|
||||||
@url{http://www.ffmpeg.org/schema/ffprobe.xsd}, which redirects to the
|
|
||||||
latest schema committed into the FFmpeg development source code tree.
|
|
||||||
|
|
||||||
Note that the output issued will be compliant to the
|
|
||||||
@file{ffprobe.xsd} schema only when no special global output options
|
|
||||||
(@option{unit}, @option{prefix}, @option{byte_binary_prefix},
|
|
||||||
@option{sexagesimal} etc.) are specified.
|
|
||||||
|
|
||||||
The description of the accepted options follows.
|
|
||||||
|
|
||||||
@table @option
|
|
||||||
|
|
||||||
@item fully_qualified, q
|
|
||||||
If set to 1 specify if the output should be fully qualified. Default
|
|
||||||
value is 0.
|
|
||||||
This is required for generating an XML file which can be validated
|
|
||||||
through an XSD file.
|
|
||||||
|
|
||||||
@item xsd_compliant, x
|
|
||||||
If set to 1 perform more checks for ensuring that the output is XSD
|
|
||||||
compliant. Default value is 0.
|
|
||||||
This option automatically sets @option{fully_qualified} to 1.
|
|
||||||
@end table
|
|
||||||
|
|
||||||
For more information about the XML format, see
|
|
||||||
@url{http://www.w3.org/XML/}.
|
|
||||||
@c man end WRITERS
|
|
||||||
|
|
||||||
@chapter Timecode
|
|
||||||
@c man begin TIMECODE
|
|
||||||
|
|
||||||
@command{ffprobe} supports Timecode extraction:
|
|
||||||
|
|
||||||
@itemize
|
|
||||||
|
|
||||||
@item
|
|
||||||
MPEG1/2 timecode is extracted from the GOP, and is available in the video
|
|
||||||
stream details (@option{-show_streams}, see @var{timecode}).
|
|
||||||
|
|
||||||
@item
|
|
||||||
MOV timecode is extracted from tmcd track, so is available in the tmcd
|
|
||||||
stream metadata (@option{-show_streams}, see @var{TAG:timecode}).
|
|
||||||
|
|
||||||
@item
|
|
||||||
DV, GXF and AVI timecodes are available in format metadata
|
|
||||||
(@option{-show_format}, see @var{TAG:timecode}).
|
|
||||||
|
|
||||||
@end itemize
|
|
||||||
@c man end TIMECODE
|
|
||||||
|
|
||||||
@include config.texi
|
|
||||||
@ifset config-all
|
|
||||||
@ifset config-avutil
|
|
||||||
@include utils.texi
|
|
||||||
@end ifset
|
|
||||||
@ifset config-avcodec
|
|
||||||
@include codecs.texi
|
|
||||||
@include bitstream_filters.texi
|
|
||||||
@end ifset
|
|
||||||
@ifset config-avformat
|
|
||||||
@include formats.texi
|
|
||||||
@include protocols.texi
|
|
||||||
@end ifset
|
|
||||||
@ifset config-avdevice
|
|
||||||
@include devices.texi
|
|
||||||
@end ifset
|
|
||||||
@ifset config-swresample
|
|
||||||
@include resampler.texi
|
|
||||||
@end ifset
|
|
||||||
@ifset config-swscale
|
|
||||||
@include scaler.texi
|
|
||||||
@end ifset
|
|
||||||
@ifset config-avfilter
|
|
||||||
@include filters.texi
|
|
||||||
@end ifset
|
|
||||||
@end ifset
|
|
||||||
|
|
||||||
@chapter See Also
|
|
||||||
|
|
||||||
@ifhtml
|
|
||||||
@ifset config-all
|
|
||||||
@url{ffprobe.html,ffprobe},
|
|
||||||
@end ifset
|
|
||||||
@ifset config-not-all
|
|
||||||
@url{ffprobe-all.html,ffprobe-all},
|
|
||||||
@end ifset
|
|
||||||
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffserver.html,ffserver},
|
|
||||||
@url{ffmpeg-utils.html,ffmpeg-utils},
|
|
||||||
@url{ffmpeg-scaler.html,ffmpeg-scaler},
|
|
||||||
@url{ffmpeg-resampler.html,ffmpeg-resampler},
|
|
||||||
@url{ffmpeg-codecs.html,ffmpeg-codecs},
|
|
||||||
@url{ffmpeg-bitstream-filters.html,ffmpeg-bitstream-filters},
|
|
||||||
@url{ffmpeg-formats.html,ffmpeg-formats},
|
|
||||||
@url{ffmpeg-devices.html,ffmpeg-devices},
|
|
||||||
@url{ffmpeg-protocols.html,ffmpeg-protocols},
|
|
||||||
@url{ffmpeg-filters.html,ffmpeg-filters}
|
|
||||||
@end ifhtml
|
|
||||||
|
|
||||||
@ifnothtml
|
|
||||||
@ifset config-all
|
|
||||||
ffprobe(1),
|
|
||||||
@end ifset
|
|
||||||
@ifset config-not-all
|
|
||||||
ffprobe-all(1),
|
|
||||||
@end ifset
|
|
||||||
ffmpeg(1), ffplay(1), ffserver(1),
|
|
||||||
ffmpeg-utils(1), ffmpeg-scaler(1), ffmpeg-resampler(1),
|
|
||||||
ffmpeg-codecs(1), ffmpeg-bitstream-filters(1), ffmpeg-formats(1),
|
|
||||||
ffmpeg-devices(1), ffmpeg-protocols(1), ffmpeg-filters(1)
|
|
||||||
@end ifnothtml
|
|
||||||
|
|
||||||
@include authors.texi
|
|
||||||
|
|
||||||
@ignore
|
|
||||||
|
|
||||||
@setfilename ffprobe
|
|
||||||
@settitle ffprobe media prober
|
|
||||||
|
|
||||||
@end ignore
|
|
||||||
|
|
||||||
@bye
|
|
||||||
218
doc/ffprobe.xsd
218
doc/ffprobe.xsd
@@ -1,218 +0,0 @@
|
|||||||
<?xml version="1.0" encoding="UTF-8"?>
|
|
||||||
|
|
||||||
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
|
|
||||||
targetNamespace="http://www.ffmpeg.org/schema/ffprobe"
|
|
||||||
xmlns:ffprobe="http://www.ffmpeg.org/schema/ffprobe">
|
|
||||||
|
|
||||||
<xsd:element name="ffprobe" type="ffprobe:ffprobeType"/>
|
|
||||||
|
|
||||||
<xsd:complexType name="ffprobeType">
|
|
||||||
<xsd:sequence>
|
|
||||||
<xsd:element name="packets" type="ffprobe:packetsType" minOccurs="0" maxOccurs="1" />
|
|
||||||
<xsd:element name="frames" type="ffprobe:framesType" minOccurs="0" maxOccurs="1" />
|
|
||||||
<xsd:element name="streams" type="ffprobe:streamsType" minOccurs="0" maxOccurs="1" />
|
|
||||||
<xsd:element name="chapters" type="ffprobe:chaptersType" minOccurs="0" maxOccurs="1" />
|
|
||||||
<xsd:element name="format" type="ffprobe:formatType" minOccurs="0" maxOccurs="1" />
|
|
||||||
<xsd:element name="error" type="ffprobe:errorType" minOccurs="0" maxOccurs="1" />
|
|
||||||
<xsd:element name="program_version" type="ffprobe:programVersionType" minOccurs="0" maxOccurs="1" />
|
|
||||||
<xsd:element name="library_versions" type="ffprobe:libraryVersionsType" minOccurs="0" maxOccurs="1" />
|
|
||||||
</xsd:sequence>
|
|
||||||
</xsd:complexType>
|
|
||||||
|
|
||||||
<xsd:complexType name="packetsType">
|
|
||||||
<xsd:sequence>
|
|
||||||
<xsd:element name="packet" type="ffprobe:packetType" minOccurs="0" maxOccurs="unbounded"/>
|
|
||||||
</xsd:sequence>
|
|
||||||
</xsd:complexType>
|
|
||||||
|
|
||||||
<xsd:complexType name="framesType">
|
|
||||||
<xsd:sequence>
|
|
||||||
<xsd:element name="frame" type="ffprobe:frameType" minOccurs="0" maxOccurs="unbounded"/>
|
|
||||||
</xsd:sequence>
|
|
||||||
</xsd:complexType>
|
|
||||||
|
|
||||||
<xsd:complexType name="packetType">
|
|
||||||
<xsd:attribute name="codec_type" type="xsd:string" use="required" />
|
|
||||||
<xsd:attribute name="stream_index" type="xsd:int" use="required" />
|
|
||||||
<xsd:attribute name="pts" type="xsd:long" />
|
|
||||||
<xsd:attribute name="pts_time" type="xsd:float" />
|
|
||||||
<xsd:attribute name="dts" type="xsd:long" />
|
|
||||||
<xsd:attribute name="dts_time" type="xsd:float" />
|
|
||||||
<xsd:attribute name="duration" type="xsd:long" />
|
|
||||||
<xsd:attribute name="duration_time" type="xsd:float" />
|
|
||||||
<xsd:attribute name="convergence_duration" type="xsd:long" />
|
|
||||||
<xsd:attribute name="convergence_duration_time" type="xsd:float" />
|
|
||||||
<xsd:attribute name="size" type="xsd:long" use="required" />
|
|
||||||
<xsd:attribute name="pos" type="xsd:long" />
|
|
||||||
<xsd:attribute name="flags" type="xsd:string" use="required" />
|
|
||||||
<xsd:attribute name="data" type="xsd:string" />
|
|
||||||
</xsd:complexType>
|
|
||||||
|
|
||||||
<xsd:complexType name="frameType">
|
|
||||||
<xsd:attribute name="media_type" type="xsd:string" use="required"/>
|
|
||||||
<xsd:attribute name="key_frame" type="xsd:int" use="required"/>
|
|
||||||
<xsd:attribute name="pts" type="xsd:long" />
|
|
||||||
<xsd:attribute name="pts_time" type="xsd:float"/>
|
|
||||||
<xsd:attribute name="pkt_pts" type="xsd:long" />
|
|
||||||
<xsd:attribute name="pkt_pts_time" type="xsd:float"/>
|
|
||||||
<xsd:attribute name="pkt_dts" type="xsd:long" />
|
|
||||||
<xsd:attribute name="pkt_dts_time" type="xsd:float"/>
|
|
||||||
<xsd:attribute name="pkt_duration" type="xsd:long" />
|
|
||||||
<xsd:attribute name="pkt_duration_time" type="xsd:float"/>
|
|
||||||
<xsd:attribute name="pkt_pos" type="xsd:long" />
|
|
||||||
<xsd:attribute name="pkt_size" type="xsd:int" />
|
|
||||||
|
|
||||||
<!-- audio attributes -->
|
|
||||||
<xsd:attribute name="sample_fmt" type="xsd:string"/>
|
|
||||||
<xsd:attribute name="nb_samples" type="xsd:long" />
|
|
||||||
<xsd:attribute name="channels" type="xsd:int" />
|
|
||||||
<xsd:attribute name="channel_layout" type="xsd:string"/>
|
|
||||||
|
|
||||||
<!-- video attributes -->
|
|
||||||
<xsd:attribute name="width" type="xsd:long" />
|
|
||||||
<xsd:attribute name="height" type="xsd:long" />
|
|
||||||
<xsd:attribute name="pix_fmt" type="xsd:string"/>
|
|
||||||
<xsd:attribute name="sample_aspect_ratio" type="xsd:string"/>
|
|
||||||
<xsd:attribute name="pict_type" type="xsd:string"/>
|
|
||||||
<xsd:attribute name="coded_picture_number" type="xsd:long" />
|
|
||||||
<xsd:attribute name="display_picture_number" type="xsd:long" />
|
|
||||||
<xsd:attribute name="interlaced_frame" type="xsd:int" />
|
|
||||||
<xsd:attribute name="top_field_first" type="xsd:int" />
|
|
||||||
<xsd:attribute name="repeat_pict" type="xsd:int" />
|
|
||||||
</xsd:complexType>
|
|
||||||
|
|
||||||
<xsd:complexType name="streamsType">
|
|
||||||
<xsd:sequence>
|
|
||||||
<xsd:element name="stream" type="ffprobe:streamType" minOccurs="0" maxOccurs="unbounded"/>
|
|
||||||
</xsd:sequence>
|
|
||||||
</xsd:complexType>
|
|
||||||
|
|
||||||
<xsd:complexType name="streamDispositionType">
|
|
||||||
<xsd:attribute name="default" type="xsd:int" use="required" />
|
|
||||||
<xsd:attribute name="dub" type="xsd:int" use="required" />
|
|
||||||
<xsd:attribute name="original" type="xsd:int" use="required" />
|
|
||||||
<xsd:attribute name="comment" type="xsd:int" use="required" />
|
|
||||||
<xsd:attribute name="lyrics" type="xsd:int" use="required" />
|
|
||||||
<xsd:attribute name="karaoke" type="xsd:int" use="required" />
|
|
||||||
<xsd:attribute name="forced" type="xsd:int" use="required" />
|
|
||||||
<xsd:attribute name="hearing_impaired" type="xsd:int" use="required" />
|
|
||||||
<xsd:attribute name="visual_impaired" type="xsd:int" use="required" />
|
|
||||||
<xsd:attribute name="clean_effects" type="xsd:int" use="required" />
|
|
||||||
<xsd:attribute name="attached_pic" type="xsd:int" use="required" />
|
|
||||||
</xsd:complexType>
|
|
||||||
|
|
||||||
<xsd:complexType name="streamType">
|
|
||||||
<xsd:sequence>
|
|
||||||
<xsd:element name="tag" type="ffprobe:tagType" minOccurs="0" maxOccurs="unbounded"/>
|
|
||||||
<xsd:element name="disposition" type="ffprobe:streamDispositionType" minOccurs="0" maxOccurs="1"/>
|
|
||||||
</xsd:sequence>
|
|
||||||
|
|
||||||
<xsd:attribute name="index" type="xsd:int" use="required"/>
|
|
||||||
<xsd:attribute name="codec_name" type="xsd:string" />
|
|
||||||
<xsd:attribute name="codec_long_name" type="xsd:string" />
|
|
||||||
<xsd:attribute name="profile" type="xsd:string" />
|
|
||||||
<xsd:attribute name="codec_type" type="xsd:string" />
|
|
||||||
<xsd:attribute name="codec_time_base" type="xsd:string" use="required"/>
|
|
||||||
<xsd:attribute name="codec_tag" type="xsd:string" use="required"/>
|
|
||||||
<xsd:attribute name="codec_tag_string" type="xsd:string" use="required"/>
|
|
||||||
<xsd:attribute name="extradata" type="xsd:string" />
|
|
||||||
|
|
||||||
<!-- video attributes -->
|
|
||||||
<xsd:attribute name="width" type="xsd:int"/>
|
|
||||||
<xsd:attribute name="height" type="xsd:int"/>
|
|
||||||
<xsd:attribute name="has_b_frames" type="xsd:int"/>
|
|
||||||
<xsd:attribute name="sample_aspect_ratio" type="xsd:string"/>
|
|
||||||
<xsd:attribute name="display_aspect_ratio" type="xsd:string"/>
|
|
||||||
<xsd:attribute name="pix_fmt" type="xsd:string"/>
|
|
||||||
<xsd:attribute name="level" type="xsd:int"/>
|
|
||||||
<xsd:attribute name="timecode" type="xsd:string"/>
|
|
||||||
|
|
||||||
<!-- audio attributes -->
|
|
||||||
<xsd:attribute name="sample_fmt" type="xsd:string"/>
|
|
||||||
<xsd:attribute name="sample_rate" type="xsd:int"/>
|
|
||||||
<xsd:attribute name="channels" type="xsd:int"/>
|
|
||||||
<xsd:attribute name="bits_per_sample" type="xsd:int"/>
|
|
||||||
|
|
||||||
<xsd:attribute name="id" type="xsd:string"/>
|
|
||||||
<xsd:attribute name="r_frame_rate" type="xsd:string" use="required"/>
|
|
||||||
<xsd:attribute name="avg_frame_rate" type="xsd:string" use="required"/>
|
|
||||||
<xsd:attribute name="time_base" type="xsd:string" use="required"/>
|
|
||||||
<xsd:attribute name="start_pts" type="xsd:long"/>
|
|
||||||
<xsd:attribute name="start_time" type="xsd:float"/>
|
|
||||||
<xsd:attribute name="duration_ts" type="xsd:long"/>
|
|
||||||
<xsd:attribute name="duration" type="xsd:float"/>
|
|
||||||
<xsd:attribute name="bit_rate" type="xsd:int"/>
|
|
||||||
<xsd:attribute name="nb_frames" type="xsd:int"/>
|
|
||||||
<xsd:attribute name="nb_read_frames" type="xsd:int"/>
|
|
||||||
<xsd:attribute name="nb_read_packets" type="xsd:int"/>
|
|
||||||
</xsd:complexType>
|
|
||||||
|
|
||||||
<xsd:complexType name="formatType">
|
|
||||||
<xsd:sequence>
|
|
||||||
<xsd:element name="tag" type="ffprobe:tagType" minOccurs="0" maxOccurs="unbounded"/>
|
|
||||||
</xsd:sequence>
|
|
||||||
|
|
||||||
<xsd:attribute name="filename" type="xsd:string" use="required"/>
|
|
||||||
<xsd:attribute name="nb_streams" type="xsd:int" use="required"/>
|
|
||||||
<xsd:attribute name="format_name" type="xsd:string" use="required"/>
|
|
||||||
<xsd:attribute name="format_long_name" type="xsd:string"/>
|
|
||||||
<xsd:attribute name="start_time" type="xsd:float"/>
|
|
||||||
<xsd:attribute name="duration" type="xsd:float"/>
|
|
||||||
<xsd:attribute name="size" type="xsd:long"/>
|
|
||||||
<xsd:attribute name="bit_rate" type="xsd:long"/>
|
|
||||||
</xsd:complexType>
|
|
||||||
|
|
||||||
<xsd:complexType name="tagType">
|
|
||||||
<xsd:attribute name="key" type="xsd:string" use="required"/>
|
|
||||||
<xsd:attribute name="value" type="xsd:string" use="required"/>
|
|
||||||
</xsd:complexType>
|
|
||||||
|
|
||||||
<xsd:complexType name="errorType">
|
|
||||||
<xsd:attribute name="code" type="xsd:int" use="required"/>
|
|
||||||
<xsd:attribute name="string" type="xsd:string" use="required"/>
|
|
||||||
</xsd:complexType>
|
|
||||||
|
|
||||||
<xsd:complexType name="programVersionType">
|
|
||||||
<xsd:attribute name="version" type="xsd:string" use="required"/>
|
|
||||||
<xsd:attribute name="copyright" type="xsd:string" use="required"/>
|
|
||||||
<xsd:attribute name="build_date" type="xsd:string" use="required"/>
|
|
||||||
<xsd:attribute name="build_time" type="xsd:string" use="required"/>
|
|
||||||
<xsd:attribute name="compiler_type" type="xsd:string" use="required"/>
|
|
||||||
<xsd:attribute name="compiler_version" type="xsd:string" use="required"/>
|
|
||||||
<xsd:attribute name="configuration" type="xsd:string" use="required"/>
|
|
||||||
</xsd:complexType>
|
|
||||||
|
|
||||||
<xsd:complexType name="chaptersType">
|
|
||||||
<xsd:sequence>
|
|
||||||
<xsd:element name="chapter" type="ffprobe:chapterType" minOccurs="0" maxOccurs="unbounded"/>
|
|
||||||
</xsd:sequence>
|
|
||||||
</xsd:complexType>
|
|
||||||
|
|
||||||
<xsd:complexType name="chapterType">
|
|
||||||
<xsd:sequence>
|
|
||||||
<xsd:element name="tag" type="ffprobe:tagType" minOccurs="0" maxOccurs="unbounded"/>
|
|
||||||
</xsd:sequence>
|
|
||||||
|
|
||||||
<xsd:attribute name="id" type="xsd:int" use="required"/>
|
|
||||||
<xsd:attribute name="time_base" type="xsd:string" use="required"/>
|
|
||||||
<xsd:attribute name="start" type="xsd:int" use="required"/>
|
|
||||||
<xsd:attribute name="start_time" type="xsd:float"/>
|
|
||||||
<xsd:attribute name="end" type="xsd:int" use="required"/>
|
|
||||||
<xsd:attribute name="end_time" type="xsd:float" use="required"/>
|
|
||||||
</xsd:complexType>
|
|
||||||
|
|
||||||
<xsd:complexType name="libraryVersionType">
|
|
||||||
<xsd:attribute name="name" type="xsd:string" use="required"/>
|
|
||||||
<xsd:attribute name="major" type="xsd:int" use="required"/>
|
|
||||||
<xsd:attribute name="minor" type="xsd:int" use="required"/>
|
|
||||||
<xsd:attribute name="micro" type="xsd:int" use="required"/>
|
|
||||||
<xsd:attribute name="version" type="xsd:int" use="required"/>
|
|
||||||
<xsd:attribute name="ident" type="xsd:string" use="required"/>
|
|
||||||
</xsd:complexType>
|
|
||||||
|
|
||||||
<xsd:complexType name="libraryVersionsType">
|
|
||||||
<xsd:sequence>
|
|
||||||
<xsd:element name="library_version" type="ffprobe:libraryVersionType" minOccurs="0" maxOccurs="unbounded"/>
|
|
||||||
</xsd:sequence>
|
|
||||||
</xsd:complexType>
|
|
||||||
</xsd:schema>
|
|
||||||
@@ -1,47 +1,52 @@
|
|||||||
\input texinfo @c -*- texinfo -*-
|
\input texinfo @c -*- texinfo -*-
|
||||||
|
|
||||||
@settitle ffserver Documentation
|
@settitle FFserver Documentation
|
||||||
@titlepage
|
@titlepage
|
||||||
@center @titlefont{ffserver Documentation}
|
@sp 7
|
||||||
|
@center @titlefont{FFserver Documentation}
|
||||||
|
@sp 3
|
||||||
@end titlepage
|
@end titlepage
|
||||||
|
|
||||||
@top
|
|
||||||
|
|
||||||
@contents
|
@chapter Introduction
|
||||||
|
|
||||||
@chapter Synopsis
|
|
||||||
|
|
||||||
ffserver [@var{options}]
|
|
||||||
|
|
||||||
@chapter Description
|
|
||||||
@c man begin DESCRIPTION
|
@c man begin DESCRIPTION
|
||||||
|
FFserver is a streaming server for both audio and video. It supports
|
||||||
|
several live feeds, streaming from files and time shifting on live feeds
|
||||||
|
(you can seek to positions in the past on each live feed, provided you
|
||||||
|
specify a big enough feed storage in ffserver.conf).
|
||||||
|
|
||||||
@command{ffserver} is a streaming server for both audio and video. It
|
FFserver runs in daemon mode by default; that is, it puts itself in
|
||||||
supports several live feeds, streaming from files and time shifting on
|
the background and detaches from its TTY, unless it is launched in
|
||||||
live feeds (you can seek to positions in the past on each live feed,
|
debug mode or a NoDaemon option is specified in the configuration
|
||||||
provided you specify a big enough feed storage in
|
file.
|
||||||
@file{ffserver.conf}).
|
|
||||||
|
|
||||||
@command{ffserver} receives prerecorded files or FFM streams from some
|
This documentation covers only the streaming aspects of ffserver /
|
||||||
@command{ffmpeg} instance as input, then streams them over
|
ffmpeg. All questions about parameters for ffmpeg, codec questions,
|
||||||
RTP/RTSP/HTTP.
|
etc. are not covered here. Read @file{ffmpeg-doc.html} for more
|
||||||
|
information.
|
||||||
|
|
||||||
An @command{ffserver} instance will listen on some port as specified
|
@section How does it work?
|
||||||
in the configuration file. You can launch one or more instances of
|
|
||||||
@command{ffmpeg} and send one or more FFM streams to the port where
|
|
||||||
ffserver is expecting to receive them. Alternately, you can make
|
|
||||||
@command{ffserver} launch such @command{ffmpeg} instances at startup.
|
|
||||||
|
|
||||||
Input streams are called feeds, and each one is specified by a
|
FFserver receives prerecorded files or FFM streams from some ffmpeg
|
||||||
@code{<Feed>} section in the configuration file.
|
instance as input, then streams them over RTP/RTSP/HTTP.
|
||||||
|
|
||||||
|
An ffserver instance will listen on some port as specified in the
|
||||||
|
configuration file. You can launch one or more instances of ffmpeg and
|
||||||
|
send one or more FFM streams to the port where ffserver is expecting
|
||||||
|
to receive them. Alternately, you can make ffserver launch such ffmpeg
|
||||||
|
instances at startup.
|
||||||
|
|
||||||
|
Input streams are called feeds, and each one is specified by a <Feed>
|
||||||
|
section in the configuration file.
|
||||||
|
|
||||||
For each feed you can have different output streams in various
|
For each feed you can have different output streams in various
|
||||||
formats, each one specified by a @code{<Stream>} section in the
|
formats, each one specified by a <Stream> section in the configuration
|
||||||
configuration file.
|
file.
|
||||||
|
|
||||||
@section Status stream
|
@section Status stream
|
||||||
|
|
||||||
ffserver supports an HTTP interface which exposes the current status
|
FFserver supports an HTTP interface which exposes the current status
|
||||||
of the server.
|
of the server.
|
||||||
|
|
||||||
Simply point your browser to the address of the special status stream
|
Simply point your browser to the address of the special status stream
|
||||||
@@ -73,6 +78,14 @@ web server can be used to serve up the files just as well.
|
|||||||
It can stream prerecorded video from .ffm files, though it is somewhat tricky
|
It can stream prerecorded video from .ffm files, though it is somewhat tricky
|
||||||
to make it work correctly.
|
to make it work correctly.
|
||||||
|
|
||||||
|
@section What do I need?
|
||||||
|
|
||||||
|
I use Linux on a 900 MHz Duron with a cheapo Bt848 based TV capture card. I'm
|
||||||
|
using stock Linux 2.4.17 with the stock drivers. [Actually that isn't true,
|
||||||
|
I needed some special drivers for my motherboard-based sound card.]
|
||||||
|
|
||||||
|
I understand that FreeBSD systems work just fine as well.
|
||||||
|
|
||||||
@section How do I make it work?
|
@section How do I make it work?
|
||||||
|
|
||||||
First, build the kit. It *really* helps to have installed LAME first. Then when
|
First, build the kit. It *really* helps to have installed LAME first. Then when
|
||||||
@@ -86,8 +99,8 @@ As a simple test, just run the following two command lines where INPUTFILE
|
|||||||
is some file which you can decode with ffmpeg:
|
is some file which you can decode with ffmpeg:
|
||||||
|
|
||||||
@example
|
@example
|
||||||
ffserver -f doc/ffserver.conf &
|
./ffserver -f doc/ffserver.conf &
|
||||||
ffmpeg -i INPUTFILE http://localhost:8090/feed1.ffm
|
./ffmpeg -i INPUTFILE http://localhost:8090/feed1.ffm
|
||||||
@end example
|
@end example
|
||||||
|
|
||||||
At this point you should be able to go to your Windows machine and fire up
|
At this point you should be able to go to your Windows machine and fire up
|
||||||
@@ -122,7 +135,7 @@ that only captures in stereo and also requires that one channel be flipped.
|
|||||||
If you are one of these people, then export 'AUDIO_FLIP_LEFT=1' before
|
If you are one of these people, then export 'AUDIO_FLIP_LEFT=1' before
|
||||||
starting ffmpeg.
|
starting ffmpeg.
|
||||||
|
|
||||||
@subsection The audio and video lose sync after a while.
|
@subsection The audio and video loose sync after a while.
|
||||||
|
|
||||||
Yes, they do.
|
Yes, they do.
|
||||||
|
|
||||||
@@ -213,23 +226,18 @@ You use this by adding the ?date= to the end of the URL for the stream.
|
|||||||
For example: @samp{http://localhost:8080/test.asf?date=2002-07-26T23:05:00}.
|
For example: @samp{http://localhost:8080/test.asf?date=2002-07-26T23:05:00}.
|
||||||
@c man end
|
@c man end
|
||||||
|
|
||||||
@section What is FFM, FFM2
|
@chapter Invocation
|
||||||
|
@section Syntax
|
||||||
|
@example
|
||||||
|
@c man begin SYNOPSIS
|
||||||
|
ffserver [options]
|
||||||
|
@c man end
|
||||||
|
@end example
|
||||||
|
|
||||||
FFM and FFM2 are formats used by ffserver. They allow storing a wide variety of
|
@section Options
|
||||||
video and audio streams and encoding options, and can store a moving time segment
|
|
||||||
of an infinite movie or a whole movie.
|
|
||||||
|
|
||||||
FFM is version specific, and there is limited compatibility of FFM files
|
|
||||||
generated by one version of ffmpeg/ffserver and another version of
|
|
||||||
ffmpeg/ffserver. It may work but it is not guaranteed to work.
|
|
||||||
|
|
||||||
FFM2 is extensible while maintaining compatibility and should work between
|
|
||||||
differing versions of tools. FFM2 is the default.
|
|
||||||
|
|
||||||
@chapter Options
|
|
||||||
@c man begin OPTIONS
|
@c man begin OPTIONS
|
||||||
|
|
||||||
@include avtools-common-opts.texi
|
@include fftools-common-opts.texi
|
||||||
|
|
||||||
@section Main options
|
@section Main options
|
||||||
|
|
||||||
@@ -238,82 +246,28 @@ differing versions of tools. FFM2 is the default.
|
|||||||
Use @file{configfile} instead of @file{/etc/ffserver.conf}.
|
Use @file{configfile} instead of @file{/etc/ffserver.conf}.
|
||||||
@item -n
|
@item -n
|
||||||
Enable no-launch mode. This option disables all the Launch directives
|
Enable no-launch mode. This option disables all the Launch directives
|
||||||
within the various <Stream> sections. Since ffserver will not launch
|
within the various <Stream> sections. FFserver will not launch any
|
||||||
any ffmpeg instances, you will have to launch them manually.
|
ffmpeg instance, so you will have to launch them manually.
|
||||||
@item -d
|
@item -d
|
||||||
Enable debug mode. This option increases log verbosity, directs log
|
Enable debug mode. This option increases log verbosity, directs log
|
||||||
messages to stdout.
|
messages to stdout and causes ffserver to run in the foreground
|
||||||
|
rather than as a daemon.
|
||||||
@end table
|
@end table
|
||||||
@c man end
|
@c man end
|
||||||
|
|
||||||
@include config.texi
|
|
||||||
@ifset config-all
|
|
||||||
@ifset config-avutil
|
|
||||||
@include utils.texi
|
|
||||||
@end ifset
|
|
||||||
@ifset config-avcodec
|
|
||||||
@include codecs.texi
|
|
||||||
@include bitstream_filters.texi
|
|
||||||
@end ifset
|
|
||||||
@ifset config-avformat
|
|
||||||
@include formats.texi
|
|
||||||
@include protocols.texi
|
|
||||||
@end ifset
|
|
||||||
@ifset config-avdevice
|
|
||||||
@include devices.texi
|
|
||||||
@end ifset
|
|
||||||
@ifset config-swresample
|
|
||||||
@include resampler.texi
|
|
||||||
@end ifset
|
|
||||||
@ifset config-swscale
|
|
||||||
@include scaler.texi
|
|
||||||
@end ifset
|
|
||||||
@ifset config-avfilter
|
|
||||||
@include filters.texi
|
|
||||||
@end ifset
|
|
||||||
@end ifset
|
|
||||||
|
|
||||||
@chapter See Also
|
|
||||||
|
|
||||||
@ifhtml
|
|
||||||
@ifset config-all
|
|
||||||
@url{ffserver.html,ffserver},
|
|
||||||
@end ifset
|
|
||||||
@ifset config-not-all
|
|
||||||
@url{ffserver-all.html,ffserver-all},
|
|
||||||
@end ifset
|
|
||||||
the @file{doc/ffserver.conf} example,
|
|
||||||
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe},
|
|
||||||
@url{ffmpeg-utils.html,ffmpeg-utils},
|
|
||||||
@url{ffmpeg-scaler.html,ffmpeg-scaler},
|
|
||||||
@url{ffmpeg-resampler.html,ffmpeg-resampler},
|
|
||||||
@url{ffmpeg-codecs.html,ffmpeg-codecs},
|
|
||||||
@url{ffmpeg-bitstream-filters.html,ffmpeg-bitstream-filters},
|
|
||||||
@url{ffmpeg-formats.html,ffmpeg-formats},
|
|
||||||
@url{ffmpeg-devices.html,ffmpeg-devices},
|
|
||||||
@url{ffmpeg-protocols.html,ffmpeg-protocols},
|
|
||||||
@url{ffmpeg-filters.html,ffmpeg-filters}
|
|
||||||
@end ifhtml
|
|
||||||
|
|
||||||
@ifnothtml
|
|
||||||
@ifset config-all
|
|
||||||
ffserver(1),
|
|
||||||
@end ifset
|
|
||||||
@ifset config-not-all
|
|
||||||
ffserver-all(1),
|
|
||||||
@end ifset
|
|
||||||
the @file{doc/ffserver.conf} example, ffmpeg(1), ffplay(1), ffprobe(1),
|
|
||||||
ffmpeg-utils(1), ffmpeg-scaler(1), ffmpeg-resampler(1),
|
|
||||||
ffmpeg-codecs(1), ffmpeg-bitstream-filters(1), ffmpeg-formats(1),
|
|
||||||
ffmpeg-devices(1), ffmpeg-protocols(1), ffmpeg-filters(1)
|
|
||||||
@end ifnothtml
|
|
||||||
|
|
||||||
@include authors.texi
|
|
||||||
|
|
||||||
@ignore
|
@ignore
|
||||||
|
|
||||||
@setfilename ffserver
|
@setfilename ffserver
|
||||||
@settitle ffserver video server
|
@settitle FFserver video server
|
||||||
|
|
||||||
|
@c man begin SEEALSO
|
||||||
|
ffmpeg(1), ffplay(1), the @file{ffmpeg/doc/ffserver.conf} example and
|
||||||
|
the HTML documentation of @file{ffmpeg}.
|
||||||
|
@c man end
|
||||||
|
|
||||||
|
@c man begin AUTHOR
|
||||||
|
Fabrice Bellard
|
||||||
|
@c man end
|
||||||
|
|
||||||
@end ignore
|
@end ignore
|
||||||
|
|
||||||
@@ -25,6 +25,10 @@ MaxBandwidth 1000
|
|||||||
# '-' is the standard output.
|
# '-' is the standard output.
|
||||||
CustomLog -
|
CustomLog -
|
||||||
|
|
||||||
|
# Suppress that if you want to launch ffserver as a daemon.
|
||||||
|
NoDaemon
|
||||||
|
|
||||||
|
|
||||||
##################################################################
|
##################################################################
|
||||||
# Definition of the live feeds. Each live feed contains one video
|
# Definition of the live feeds. Each live feed contains one video
|
||||||
# and/or audio sequence coming from an ffmpeg encoder or another
|
# and/or audio sequence coming from an ffmpeg encoder or another
|
||||||
@@ -302,27 +306,6 @@ StartSendOnKey
|
|||||||
#</Stream>
|
#</Stream>
|
||||||
|
|
||||||
|
|
||||||
# Transcode an incoming live feed to another live feed,
|
|
||||||
# using libx264 and video presets
|
|
||||||
|
|
||||||
#<Stream live.h264>
|
|
||||||
#Format rtp
|
|
||||||
#Feed feed1.ffm
|
|
||||||
#VideoCodec libx264
|
|
||||||
#VideoFrameRate 24
|
|
||||||
#VideoBitRate 100
|
|
||||||
#VideoSize 480x272
|
|
||||||
#AVPresetVideo default
|
|
||||||
#AVPresetVideo baseline
|
|
||||||
#AVOptionVideo flags +global_header
|
|
||||||
#
|
|
||||||
#AudioCodec libfaac
|
|
||||||
#AudioBitRate 32
|
|
||||||
#AudioChannels 2
|
|
||||||
#AudioSampleRate 22050
|
|
||||||
#AVOptionAudio flags +global_header
|
|
||||||
#</Stream>
|
|
||||||
|
|
||||||
##################################################################
|
##################################################################
|
||||||
# SDP/multicast examples
|
# SDP/multicast examples
|
||||||
#
|
#
|
||||||
@@ -369,3 +352,5 @@ ACL allow 192.168.0.0 192.168.255.255
|
|||||||
<Redirect index.html>
|
<Redirect index.html>
|
||||||
URL http://www.ffmpeg.org/
|
URL http://www.ffmpeg.org/
|
||||||
</Redirect>
|
</Redirect>
|
||||||
|
|
||||||
|
|
||||||
|
|||||||
72
doc/fftools-common-opts.texi
Normal file
72
doc/fftools-common-opts.texi
Normal file
@@ -0,0 +1,72 @@
|
|||||||
|
@section Generic options
|
||||||
|
|
||||||
|
These options are shared amongst the ff* tools.
|
||||||
|
|
||||||
|
@table @option
|
||||||
|
|
||||||
|
@item -L
|
||||||
|
Show license.
|
||||||
|
|
||||||
|
@item -h, -?, -help, --help
|
||||||
|
Show help.
|
||||||
|
|
||||||
|
@item -version
|
||||||
|
Show version.
|
||||||
|
|
||||||
|
@item -formats
|
||||||
|
Show available formats.
|
||||||
|
|
||||||
|
The fields preceding the format names have the following meanings:
|
||||||
|
@table @samp
|
||||||
|
@item D
|
||||||
|
Decoding available
|
||||||
|
@item E
|
||||||
|
Encoding available
|
||||||
|
@end table
|
||||||
|
|
||||||
|
@item -codecs
|
||||||
|
Show available codecs.
|
||||||
|
|
||||||
|
The fields preceding the codec names have the following meanings:
|
||||||
|
@table @samp
|
||||||
|
@item D
|
||||||
|
Decoding available
|
||||||
|
@item E
|
||||||
|
Encoding available
|
||||||
|
@item V/A/S
|
||||||
|
Video/audio/subtitle codec
|
||||||
|
@item S
|
||||||
|
Codec supports slices
|
||||||
|
@item D
|
||||||
|
Codec supports direct rendering
|
||||||
|
@item T
|
||||||
|
Codec can handle input truncated at random locations instead of only at frame boundaries
|
||||||
|
@end table
|
||||||
|
|
||||||
|
@item -bsfs
|
||||||
|
Show available bitstream filters.
|
||||||
|
|
||||||
|
@item -protocols
|
||||||
|
Show available protocols.
|
||||||
|
|
||||||
|
@item -filters
|
||||||
|
Show available libavfilter filters.
|
||||||
|
|
||||||
|
@item -pix_fmts
|
||||||
|
Show available pixel formats.
|
||||||
|
|
||||||
|
@item -loglevel @var{loglevel}
|
||||||
|
Set the logging level used by the library.
|
||||||
|
@var{loglevel} is a number or a string containing one of the following values:
|
||||||
|
@table @samp
|
||||||
|
@item quiet
|
||||||
|
@item panic
|
||||||
|
@item fatal
|
||||||
|
@item error
|
||||||
|
@item warning
|
||||||
|
@item info
|
||||||
|
@item verbose
|
||||||
|
@item debug
|
||||||
|
@end table
|
||||||
|
|
||||||
|
@end table
|
||||||
@@ -1,270 +0,0 @@
|
|||||||
Filter design
|
|
||||||
=============
|
|
||||||
|
|
||||||
This document explains guidelines that should be observed (or ignored with
|
|
||||||
good reason) when writing filters for libavfilter.
|
|
||||||
|
|
||||||
In this document, the word “frame” indicates either a video frame or a group
|
|
||||||
of audio samples, as stored in an AVFilterBuffer structure.
|
|
||||||
|
|
||||||
|
|
||||||
Format negotiation
|
|
||||||
==================
|
|
||||||
|
|
||||||
The query_formats method should set, for each input and each output links,
|
|
||||||
the list of supported formats.
|
|
||||||
|
|
||||||
For video links, that means pixel format. For audio links, that means
|
|
||||||
channel layout, sample format (the sample packing is implied by the sample
|
|
||||||
format) and sample rate.
|
|
||||||
|
|
||||||
The lists are not just lists, they are references to shared objects. When
|
|
||||||
the negotiation mechanism computes the intersection of the formats
|
|
||||||
supported at each end of a link, all references to both lists are replaced
|
|
||||||
with a reference to the intersection. And when a single format is
|
|
||||||
eventually chosen for a link amongst the remaining list, again, all
|
|
||||||
references to the list are updated.
|
|
||||||
|
|
||||||
That means that if a filter requires that its input and output have the
|
|
||||||
same format amongst a supported list, all it has to do is use a reference
|
|
||||||
to the same list of formats.
|
|
||||||
|
|
||||||
query_formats can leave some formats unset and return AVERROR(EAGAIN) to
|
|
||||||
cause the negotiation mechanism to try again later. That can be used by
|
|
||||||
filters with complex requirements to use the format negotiated on one link
|
|
||||||
to set the formats supported on another.
|
|
||||||
|
|
||||||
|
|
||||||
Buffer references ownership and permissions
|
|
||||||
===========================================
|
|
||||||
|
|
||||||
Principle
|
|
||||||
---------
|
|
||||||
|
|
||||||
Audio and video data are voluminous; the buffer and buffer reference
|
|
||||||
mechanism is intended to avoid, as much as possible, expensive copies of
|
|
||||||
that data while still allowing the filters to produce correct results.
|
|
||||||
|
|
||||||
The data is stored in buffers represented by AVFilterBuffer structures.
|
|
||||||
They must not be accessed directly, but through references stored in
|
|
||||||
AVFilterBufferRef structures. Several references can point to the
|
|
||||||
same buffer; the buffer is automatically deallocated once all
|
|
||||||
corresponding references have been destroyed.
|
|
||||||
|
|
||||||
The characteristics of the data (resolution, sample rate, etc.) are
|
|
||||||
stored in the reference; different references for the same buffer can
|
|
||||||
show different characteristics. In particular, a video reference can
|
|
||||||
point to only a part of a video buffer.
|
|
||||||
|
|
||||||
A reference is usually obtained as input to the start_frame or
|
|
||||||
filter_frame method or requested using the ff_get_video_buffer or
|
|
||||||
ff_get_audio_buffer functions. A new reference on an existing buffer can
|
|
||||||
be created with the avfilter_ref_buffer. A reference is destroyed using
|
|
||||||
the avfilter_unref_bufferp function.
|
|
||||||
|
|
||||||
Reference ownership
|
|
||||||
-------------------
|
|
||||||
|
|
||||||
At any time, a reference “belongs” to a particular piece of code,
|
|
||||||
usually a filter. With a few caveats that will be explained below, only
|
|
||||||
that piece of code is allowed to access it. It is also responsible for
|
|
||||||
destroying it, although this is sometimes done automatically (see the
|
|
||||||
section on link reference fields).
|
|
||||||
|
|
||||||
Here are the (fairly obvious) rules for reference ownership:
|
|
||||||
|
|
||||||
* A reference received by the filter_frame method (or its start_frame
|
|
||||||
deprecated version) belongs to the corresponding filter.
|
|
||||||
|
|
||||||
Special exception: for video references: the reference may be used
|
|
||||||
internally for automatic copying and must not be destroyed before
|
|
||||||
end_frame; it can be given away to ff_start_frame.
|
|
||||||
|
|
||||||
* A reference passed to ff_filter_frame (or the deprecated
|
|
||||||
ff_start_frame) is given away and must no longer be used.
|
|
||||||
|
|
||||||
* A reference created with avfilter_ref_buffer belongs to the code that
|
|
||||||
created it.
|
|
||||||
|
|
||||||
* A reference obtained with ff_get_video_buffer or ff_get_audio_buffer
|
|
||||||
belongs to the code that requested it.
|
|
||||||
|
|
||||||
* A reference given as return value by the get_video_buffer or
|
|
||||||
get_audio_buffer method is given away and must no longer be used.
|
|
||||||
|
|
||||||
Link reference fields
|
|
||||||
---------------------
|
|
||||||
|
|
||||||
The AVFilterLink structure has a few AVFilterBufferRef fields. The
|
|
||||||
cur_buf and out_buf were used with the deprecated
|
|
||||||
start_frame/draw_slice/end_frame API and should no longer be used.
|
|
||||||
src_buf, cur_buf_copy and partial_buf are used by libavfilter internally
|
|
||||||
and must not be accessed by filters.
|
|
||||||
|
|
||||||
Reference permissions
|
|
||||||
---------------------
|
|
||||||
|
|
||||||
The AVFilterBufferRef structure has a perms field that describes what
|
|
||||||
the code that owns the reference is allowed to do to the buffer data.
|
|
||||||
Different references for the same buffer can have different permissions.
|
|
||||||
|
|
||||||
For video filters that implement the deprecated
|
|
||||||
start_frame/draw_slice/end_frame API, the permissions only apply to the
|
|
||||||
parts of the buffer that have already been covered by the draw_slice
|
|
||||||
method.
|
|
||||||
|
|
||||||
The value is a binary OR of the following constants:
|
|
||||||
|
|
||||||
* AV_PERM_READ: the owner can read the buffer data; this is essentially
|
|
||||||
always true and is there for self-documentation.
|
|
||||||
|
|
||||||
* AV_PERM_WRITE: the owner can modify the buffer data.
|
|
||||||
|
|
||||||
* AV_PERM_PRESERVE: the owner can rely on the fact that the buffer data
|
|
||||||
will not be modified by previous filters.
|
|
||||||
|
|
||||||
* AV_PERM_REUSE: the owner can output the buffer several times, without
|
|
||||||
modifying the data in between.
|
|
||||||
|
|
||||||
* AV_PERM_REUSE2: the owner can output the buffer several times and
|
|
||||||
modify the data in between (useless without the WRITE permissions).
|
|
||||||
|
|
||||||
* AV_PERM_ALIGN: the owner can access the data using fast operations
|
|
||||||
that require data alignment.
|
|
||||||
|
|
||||||
The READ, WRITE and PRESERVE permissions are about sharing the same
|
|
||||||
buffer between several filters to avoid expensive copies without them
|
|
||||||
doing conflicting changes on the data.
|
|
||||||
|
|
||||||
The REUSE and REUSE2 permissions are about special memory for direct
|
|
||||||
rendering. For example a buffer directly allocated in video memory must
|
|
||||||
not modified once it is displayed on screen, or it will cause tearing;
|
|
||||||
it will therefore not have the REUSE2 permission.
|
|
||||||
|
|
||||||
The ALIGN permission is about extracting part of the buffer, for
|
|
||||||
copy-less padding or cropping for example.
|
|
||||||
|
|
||||||
|
|
||||||
References received on input pads are guaranteed to have all the
|
|
||||||
permissions stated in the min_perms field and none of the permissions
|
|
||||||
stated in the rej_perms.
|
|
||||||
|
|
||||||
References obtained by ff_get_video_buffer and ff_get_audio_buffer are
|
|
||||||
guaranteed to have at least all the permissions requested as argument.
|
|
||||||
|
|
||||||
References created by avfilter_ref_buffer have the same permissions as
|
|
||||||
the original reference minus the ones explicitly masked; the mask is
|
|
||||||
usually ~0 to keep the same permissions.
|
|
||||||
|
|
||||||
Filters should remove permissions on reference they give to output
|
|
||||||
whenever necessary. It can be automatically done by setting the
|
|
||||||
rej_perms field on the output pad.
|
|
||||||
|
|
||||||
Here are a few guidelines corresponding to common situations:
|
|
||||||
|
|
||||||
* Filters that modify and forward their frame (like drawtext) need the
|
|
||||||
WRITE permission.
|
|
||||||
|
|
||||||
* Filters that read their input to produce a new frame on output (like
|
|
||||||
scale) need the READ permission on input and and must request a buffer
|
|
||||||
with the WRITE permission.
|
|
||||||
|
|
||||||
* Filters that intend to keep a reference after the filtering process
|
|
||||||
is finished (after filter_frame returns) must have the PRESERVE
|
|
||||||
permission on it and remove the WRITE permission if they create a new
|
|
||||||
reference to give it away.
|
|
||||||
|
|
||||||
* Filters that intend to modify a reference they have kept after the end
|
|
||||||
of the filtering process need the REUSE2 permission and must remove
|
|
||||||
the PRESERVE permission if they create a new reference to give it
|
|
||||||
away.
|
|
||||||
|
|
||||||
|
|
||||||
Frame scheduling
|
|
||||||
================
|
|
||||||
|
|
||||||
The purpose of these rules is to ensure that frames flow in the filter
|
|
||||||
graph without getting stuck and accumulating somewhere.
|
|
||||||
|
|
||||||
Simple filters that output one frame for each input frame should not have
|
|
||||||
to worry about it.
|
|
||||||
|
|
||||||
filter_frame
|
|
||||||
------------
|
|
||||||
|
|
||||||
This method is called when a frame is pushed to the filter's input. It
|
|
||||||
can be called at any time except in a reentrant way.
|
|
||||||
|
|
||||||
If the input frame is enough to produce output, then the filter should
|
|
||||||
push the output frames on the output link immediately.
|
|
||||||
|
|
||||||
As an exception to the previous rule, if the input frame is enough to
|
|
||||||
produce several output frames, then the filter needs output only at
|
|
||||||
least one per link. The additional frames can be left buffered in the
|
|
||||||
filter; these buffered frames must be flushed immediately if a new input
|
|
||||||
produces new output.
|
|
||||||
|
|
||||||
(Example: frame rate-doubling filter: filter_frame must (1) flush the
|
|
||||||
second copy of the previous frame, if it is still there, (2) push the
|
|
||||||
first copy of the incoming frame, (3) keep the second copy for later.)
|
|
||||||
|
|
||||||
If the input frame is not enough to produce output, the filter must not
|
|
||||||
call request_frame to get more. It must just process the frame or queue
|
|
||||||
it. The task of requesting more frames is left to the filter's
|
|
||||||
request_frame method or the application.
|
|
||||||
|
|
||||||
If a filter has several inputs, the filter must be ready for frames
|
|
||||||
arriving randomly on any input. Therefore, any filter with several inputs
|
|
||||||
will most likely require some kind of queuing mechanism. It is perfectly
|
|
||||||
acceptable to have a limited queue and to drop frames when the inputs
|
|
||||||
are too unbalanced.
|
|
||||||
|
|
||||||
request_frame
|
|
||||||
-------------
|
|
||||||
|
|
||||||
This method is called when a frame is wanted on an output.
|
|
||||||
|
|
||||||
For an input, it should directly call filter_frame on the corresponding
|
|
||||||
output.
|
|
||||||
|
|
||||||
For a filter, if there are queued frames already ready, one of these
|
|
||||||
frames should be pushed. If not, the filter should request a frame on
|
|
||||||
one of its inputs, repeatedly until at least one frame has been pushed.
|
|
||||||
|
|
||||||
Return values:
|
|
||||||
if request_frame could produce a frame, it should return 0;
|
|
||||||
if it could not for temporary reasons, it should return AVERROR(EAGAIN);
|
|
||||||
if it could not because there are no more frames, it should return
|
|
||||||
AVERROR_EOF.
|
|
||||||
|
|
||||||
The typical implementation of request_frame for a filter with several
|
|
||||||
inputs will look like that:
|
|
||||||
|
|
||||||
if (frames_queued) {
|
|
||||||
push_one_frame();
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
while (!frame_pushed) {
|
|
||||||
input = input_where_a_frame_is_most_needed();
|
|
||||||
ret = ff_request_frame(input);
|
|
||||||
if (ret == AVERROR_EOF) {
|
|
||||||
process_eof_on_input();
|
|
||||||
} else if (ret < 0) {
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
return 0;
|
|
||||||
|
|
||||||
Note that, except for filters that can have queued frames, request_frame
|
|
||||||
does not push frames: it requests them to its input, and as a reaction,
|
|
||||||
the filter_frame method will be called and do the work.
|
|
||||||
|
|
||||||
Legacy API
|
|
||||||
==========
|
|
||||||
|
|
||||||
Until libavfilter 3.23, the filter_frame method was split:
|
|
||||||
|
|
||||||
- for video filters, it was made of start_frame, draw_slice (that could be
|
|
||||||
called several times on distinct parts of the frame) and end_frame;
|
|
||||||
|
|
||||||
- for audio filters, it was called filter_samples.
|
|
||||||
9291
doc/filters.texi
9291
doc/filters.texi
File diff suppressed because it is too large
Load Diff
146
doc/formats.texi
146
doc/formats.texi
@@ -1,146 +0,0 @@
|
|||||||
@chapter Format Options
|
|
||||||
@c man begin FORMAT OPTIONS
|
|
||||||
|
|
||||||
The libavformat library provides some generic global options, which
|
|
||||||
can be set on all the muxers and demuxers. In addition each muxer or
|
|
||||||
demuxer may support so-called private options, which are specific for
|
|
||||||
that component.
|
|
||||||
|
|
||||||
Options may be set by specifying -@var{option} @var{value} in the
|
|
||||||
FFmpeg tools, or by setting the value explicitly in the
|
|
||||||
@code{AVFormatContext} options or using the @file{libavutil/opt.h} API
|
|
||||||
for programmatic use.
|
|
||||||
|
|
||||||
The list of supported options follows:
|
|
||||||
|
|
||||||
@table @option
|
|
||||||
@item avioflags @var{flags} (@emph{input/output})
|
|
||||||
Possible values:
|
|
||||||
@table @samp
|
|
||||||
@item direct
|
|
||||||
Reduce buffering.
|
|
||||||
@end table
|
|
||||||
|
|
||||||
@item probesize @var{integer} (@emph{input})
|
|
||||||
Set probing size in bytes, i.e. the size of the data to analyze to get
|
|
||||||
stream information. A higher value will allow to detect more
|
|
||||||
information in case it is dispersed into the stream, but will increase
|
|
||||||
latency. Must be an integer not lesser than 32. It is 5000000 by default.
|
|
||||||
|
|
||||||
@item packetsize @var{integer} (@emph{output})
|
|
||||||
Set packet size.
|
|
||||||
|
|
||||||
@item fflags @var{flags} (@emph{input/output})
|
|
||||||
Set format flags.
|
|
||||||
|
|
||||||
Possible values:
|
|
||||||
@table @samp
|
|
||||||
@item ignidx
|
|
||||||
Ignore index.
|
|
||||||
@item genpts
|
|
||||||
Generate PTS.
|
|
||||||
@item nofillin
|
|
||||||
Do not fill in missing values that can be exactly calculated.
|
|
||||||
@item noparse
|
|
||||||
Disable AVParsers, this needs @code{+nofillin} too.
|
|
||||||
@item igndts
|
|
||||||
Ignore DTS.
|
|
||||||
@item discardcorrupt
|
|
||||||
Discard corrupted frames.
|
|
||||||
@item sortdts
|
|
||||||
Try to interleave output packets by DTS.
|
|
||||||
@item keepside
|
|
||||||
Do not merge side data.
|
|
||||||
@item latm
|
|
||||||
Enable RTP MP4A-LATM payload.
|
|
||||||
@item nobuffer
|
|
||||||
Reduce the latency introduced by optional buffering
|
|
||||||
@end table
|
|
||||||
|
|
||||||
@item analyzeduration @var{integer} (@emph{input})
|
|
||||||
Specify how many microseconds are analyzed to probe the input. A
|
|
||||||
higher value will allow to detect more accurate information, but will
|
|
||||||
increase latency. It defaults to 5,000,000 microseconds = 5 seconds.
|
|
||||||
|
|
||||||
@item cryptokey @var{hexadecimal string} (@emph{input})
|
|
||||||
Set decryption key.
|
|
||||||
|
|
||||||
@item indexmem @var{integer} (@emph{input})
|
|
||||||
Set max memory used for timestamp index (per stream).
|
|
||||||
|
|
||||||
@item rtbufsize @var{integer} (@emph{input})
|
|
||||||
Set max memory used for buffering real-time frames.
|
|
||||||
|
|
||||||
@item fdebug @var{flags} (@emph{input/output})
|
|
||||||
Print specific debug info.
|
|
||||||
|
|
||||||
Possible values:
|
|
||||||
@table @samp
|
|
||||||
@item ts
|
|
||||||
@end table
|
|
||||||
|
|
||||||
@item max_delay @var{integer} (@emph{input/output})
|
|
||||||
Set maximum muxing or demuxing delay in microseconds.
|
|
||||||
|
|
||||||
@item fpsprobesize @var{integer} (@emph{input})
|
|
||||||
Set number of frames used to probe fps.
|
|
||||||
|
|
||||||
@item audio_preload @var{integer} (@emph{output})
|
|
||||||
Set microseconds by which audio packets should be interleaved earlier.
|
|
||||||
|
|
||||||
@item chunk_duration @var{integer} (@emph{output})
|
|
||||||
Set microseconds for each chunk.
|
|
||||||
|
|
||||||
@item chunk_size @var{integer} (@emph{output})
|
|
||||||
Set size in bytes for each chunk.
|
|
||||||
|
|
||||||
@item err_detect, f_err_detect @var{flags} (@emph{input})
|
|
||||||
Set error detection flags. @code{f_err_detect} is deprecated and
|
|
||||||
should be used only via the @command{ffmpeg} tool.
|
|
||||||
|
|
||||||
Possible values:
|
|
||||||
@table @samp
|
|
||||||
@item crccheck
|
|
||||||
Verify embedded CRCs.
|
|
||||||
@item bitstream
|
|
||||||
Detect bitstream specification deviations.
|
|
||||||
@item buffer
|
|
||||||
Detect improper bitstream length.
|
|
||||||
@item explode
|
|
||||||
Abort decoding on minor error detection.
|
|
||||||
@item careful
|
|
||||||
Consider things that violate the spec and have not been seen in the
|
|
||||||
wild as errors.
|
|
||||||
@item compliant
|
|
||||||
Consider all spec non compliancies as errors.
|
|
||||||
@item aggressive
|
|
||||||
Consider things that a sane encoder should not do as an error.
|
|
||||||
@end table
|
|
||||||
|
|
||||||
@item use_wallclock_as_timestamps @var{integer} (@emph{input})
|
|
||||||
Use wallclock as timestamps.
|
|
||||||
|
|
||||||
@item avoid_negative_ts @var{integer} (@emph{output})
|
|
||||||
Shift timestamps to make them non-negative. A value of 1 enables shifting,
|
|
||||||
a value of 0 disables it, the default value of -1 enables shifting
|
|
||||||
when required by the target format.
|
|
||||||
|
|
||||||
When shifting is enabled, all output timestamps are shifted by the
|
|
||||||
same amount. Audio, video, and subtitles desynching and relative
|
|
||||||
timestamp differences are preserved compared to how they would have
|
|
||||||
been without shifting.
|
|
||||||
|
|
||||||
Also note that this affects only leading negative timestamps, and not
|
|
||||||
non-monotonic negative timestamps.
|
|
||||||
|
|
||||||
@item flush_packets @var{integer} (@emph{output})
|
|
||||||
Flush the underlying I/O stream after each packet. Default 1 enables it, and
|
|
||||||
has the effect of reducing the latency; 0 disables it and may slightly
|
|
||||||
increase performance in some cases.
|
|
||||||
@end table
|
|
||||||
|
|
||||||
@c man end FORMAT OPTIONS
|
|
||||||
|
|
||||||
@include demuxers.texi
|
|
||||||
@include muxers.texi
|
|
||||||
@include metadata.texi
|
|
||||||
808
doc/general.texi
808
doc/general.texi
File diff suppressed because it is too large
Load Diff
@@ -1,415 +0,0 @@
|
|||||||
\input texinfo @c -*- texinfo -*-
|
|
||||||
|
|
||||||
@settitle Using git to develop FFmpeg
|
|
||||||
|
|
||||||
@titlepage
|
|
||||||
@center @titlefont{Using git to develop FFmpeg}
|
|
||||||
@end titlepage
|
|
||||||
|
|
||||||
@top
|
|
||||||
|
|
||||||
@contents
|
|
||||||
|
|
||||||
@chapter Introduction
|
|
||||||
|
|
||||||
This document aims in giving some quick references on a set of useful git
|
|
||||||
commands. You should always use the extensive and detailed documentation
|
|
||||||
provided directly by git:
|
|
||||||
|
|
||||||
@example
|
|
||||||
git --help
|
|
||||||
man git
|
|
||||||
@end example
|
|
||||||
|
|
||||||
shows you the available subcommands,
|
|
||||||
|
|
||||||
@example
|
|
||||||
git <command> --help
|
|
||||||
man git-<command>
|
|
||||||
@end example
|
|
||||||
|
|
||||||
shows information about the subcommand <command>.
|
|
||||||
|
|
||||||
Additional information could be found on the
|
|
||||||
@url{http://gitref.org, Git Reference} website
|
|
||||||
|
|
||||||
For more information about the Git project, visit the
|
|
||||||
|
|
||||||
@url{http://git-scm.com/, Git website}
|
|
||||||
|
|
||||||
Consult these resources whenever you have problems, they are quite exhaustive.
|
|
||||||
|
|
||||||
What follows now is a basic introduction to Git and some FFmpeg-specific
|
|
||||||
guidelines to ease the contribution to the project
|
|
||||||
|
|
||||||
@chapter Basics Usage
|
|
||||||
|
|
||||||
@section Get GIT
|
|
||||||
|
|
||||||
You can get git from @url{http://git-scm.com/}
|
|
||||||
Most distribution and operating system provide a package for it.
|
|
||||||
|
|
||||||
|
|
||||||
@section Cloning the source tree
|
|
||||||
|
|
||||||
@example
|
|
||||||
git clone git://source.ffmpeg.org/ffmpeg <target>
|
|
||||||
@end example
|
|
||||||
|
|
||||||
This will put the FFmpeg sources into the directory @var{<target>}.
|
|
||||||
|
|
||||||
@example
|
|
||||||
git clone git@@source.ffmpeg.org:ffmpeg <target>
|
|
||||||
@end example
|
|
||||||
|
|
||||||
This will put the FFmpeg sources into the directory @var{<target>} and let
|
|
||||||
you push back your changes to the remote repository.
|
|
||||||
|
|
||||||
Make sure that you do not have Windows line endings in your checkouts,
|
|
||||||
otherwise you may experience spurious compilation failures. One way to
|
|
||||||
achieve this is to run
|
|
||||||
|
|
||||||
@example
|
|
||||||
git config --global core.autocrlf false
|
|
||||||
@end example
|
|
||||||
|
|
||||||
|
|
||||||
@section Updating the source tree to the latest revision
|
|
||||||
|
|
||||||
@example
|
|
||||||
git pull (--rebase)
|
|
||||||
@end example
|
|
||||||
|
|
||||||
pulls in the latest changes from the tracked branch. The tracked branch
|
|
||||||
can be remote. By default the master branch tracks the branch master in
|
|
||||||
the remote origin.
|
|
||||||
|
|
||||||
@float IMPORTANT
|
|
||||||
@command{--rebase} (see below) is recommended.
|
|
||||||
@end float
|
|
||||||
|
|
||||||
@section Rebasing your local branches
|
|
||||||
|
|
||||||
@example
|
|
||||||
git pull --rebase
|
|
||||||
@end example
|
|
||||||
|
|
||||||
fetches the changes from the main repository and replays your local commits
|
|
||||||
over it. This is required to keep all your local changes at the top of
|
|
||||||
FFmpeg's master tree. The master tree will reject pushes with merge commits.
|
|
||||||
|
|
||||||
|
|
||||||
@section Adding/removing files/directories
|
|
||||||
|
|
||||||
@example
|
|
||||||
git add [-A] <filename/dirname>
|
|
||||||
git rm [-r] <filename/dirname>
|
|
||||||
@end example
|
|
||||||
|
|
||||||
GIT needs to get notified of all changes you make to your working
|
|
||||||
directory that makes files appear or disappear.
|
|
||||||
Line moves across files are automatically tracked.
|
|
||||||
|
|
||||||
|
|
||||||
@section Showing modifications
|
|
||||||
|
|
||||||
@example
|
|
||||||
git diff <filename(s)>
|
|
||||||
@end example
|
|
||||||
|
|
||||||
will show all local modifications in your working directory as unified diff.
|
|
||||||
|
|
||||||
|
|
||||||
@section Inspecting the changelog
|
|
||||||
|
|
||||||
@example
|
|
||||||
git log <filename(s)>
|
|
||||||
@end example
|
|
||||||
|
|
||||||
You may also use the graphical tools like gitview or gitk or the web
|
|
||||||
interface available at http://source.ffmpeg.org/
|
|
||||||
|
|
||||||
@section Checking source tree status
|
|
||||||
|
|
||||||
@example
|
|
||||||
git status
|
|
||||||
@end example
|
|
||||||
|
|
||||||
detects all the changes you made and lists what actions will be taken in case
|
|
||||||
of a commit (additions, modifications, deletions, etc.).
|
|
||||||
|
|
||||||
|
|
||||||
@section Committing
|
|
||||||
|
|
||||||
@example
|
|
||||||
git diff --check
|
|
||||||
@end example
|
|
||||||
|
|
||||||
to double check your changes before committing them to avoid trouble later
|
|
||||||
on. All experienced developers do this on each and every commit, no matter
|
|
||||||
how small.
|
|
||||||
Every one of them has been saved from looking like a fool by this many times.
|
|
||||||
It's very easy for stray debug output or cosmetic modifications to slip in,
|
|
||||||
please avoid problems through this extra level of scrutiny.
|
|
||||||
|
|
||||||
For cosmetics-only commits you should get (almost) empty output from
|
|
||||||
|
|
||||||
@example
|
|
||||||
git diff -w -b <filename(s)>
|
|
||||||
@end example
|
|
||||||
|
|
||||||
Also check the output of
|
|
||||||
|
|
||||||
@example
|
|
||||||
git status
|
|
||||||
@end example
|
|
||||||
|
|
||||||
to make sure you don't have untracked files or deletions.
|
|
||||||
|
|
||||||
@example
|
|
||||||
git add [-i|-p|-A] <filenames/dirnames>
|
|
||||||
@end example
|
|
||||||
|
|
||||||
Make sure you have told git your name and email address
|
|
||||||
|
|
||||||
@example
|
|
||||||
git config --global user.name "My Name"
|
|
||||||
git config --global user.email my@@email.invalid
|
|
||||||
@end example
|
|
||||||
|
|
||||||
Use @var{--global} to set the global configuration for all your git checkouts.
|
|
||||||
|
|
||||||
Git will select the changes to the files for commit. Optionally you can use
|
|
||||||
the interactive or the patch mode to select hunk by hunk what should be
|
|
||||||
added to the commit.
|
|
||||||
|
|
||||||
|
|
||||||
@example
|
|
||||||
git commit
|
|
||||||
@end example
|
|
||||||
|
|
||||||
Git will commit the selected changes to your current local branch.
|
|
||||||
|
|
||||||
You will be prompted for a log message in an editor, which is either
|
|
||||||
set in your personal configuration file through
|
|
||||||
|
|
||||||
@example
|
|
||||||
git config --global core.editor
|
|
||||||
@end example
|
|
||||||
|
|
||||||
or set by one of the following environment variables:
|
|
||||||
@var{GIT_EDITOR}, @var{VISUAL} or @var{EDITOR}.
|
|
||||||
|
|
||||||
Log messages should be concise but descriptive. Explain why you made a change,
|
|
||||||
what you did will be obvious from the changes themselves most of the time.
|
|
||||||
Saying just "bug fix" or "10l" is bad. Remember that people of varying skill
|
|
||||||
levels look at and educate themselves while reading through your code. Don't
|
|
||||||
include filenames in log messages, Git provides that information.
|
|
||||||
|
|
||||||
Possibly make the commit message have a terse, descriptive first line, an
|
|
||||||
empty line and then a full description. The first line will be used to name
|
|
||||||
the patch by git format-patch.
|
|
||||||
|
|
||||||
@section Preparing a patchset
|
|
||||||
|
|
||||||
@example
|
|
||||||
git format-patch <commit> [-o directory]
|
|
||||||
@end example
|
|
||||||
|
|
||||||
will generate a set of patches for each commit between @var{<commit>} and
|
|
||||||
current @var{HEAD}. E.g.
|
|
||||||
|
|
||||||
@example
|
|
||||||
git format-patch origin/master
|
|
||||||
@end example
|
|
||||||
|
|
||||||
will generate patches for all commits on current branch which are not
|
|
||||||
present in upstream.
|
|
||||||
A useful shortcut is also
|
|
||||||
|
|
||||||
@example
|
|
||||||
git format-patch -n
|
|
||||||
@end example
|
|
||||||
|
|
||||||
which will generate patches from last @var{n} commits.
|
|
||||||
By default the patches are created in the current directory.
|
|
||||||
|
|
||||||
@section Sending patches for review
|
|
||||||
|
|
||||||
@example
|
|
||||||
git send-email <commit list|directory>
|
|
||||||
@end example
|
|
||||||
|
|
||||||
will send the patches created by @command{git format-patch} or directly
|
|
||||||
generates them. All the email fields can be configured in the global/local
|
|
||||||
configuration or overridden by command line.
|
|
||||||
Note that this tool must often be installed separately (e.g. @var{git-email}
|
|
||||||
package on Debian-based distros).
|
|
||||||
|
|
||||||
|
|
||||||
@section Renaming/moving/copying files or contents of files
|
|
||||||
|
|
||||||
Git automatically tracks such changes, making those normal commits.
|
|
||||||
|
|
||||||
@example
|
|
||||||
mv/cp path/file otherpath/otherfile
|
|
||||||
git add [-A] .
|
|
||||||
git commit
|
|
||||||
@end example
|
|
||||||
|
|
||||||
|
|
||||||
@chapter Git configuration
|
|
||||||
|
|
||||||
In order to simplify a few workflows, it is advisable to configure both
|
|
||||||
your personal Git installation and your local FFmpeg repository.
|
|
||||||
|
|
||||||
@section Personal Git installation
|
|
||||||
|
|
||||||
Add the following to your @file{~/.gitconfig} to help @command{git send-email}
|
|
||||||
and @command{git format-patch} detect renames:
|
|
||||||
|
|
||||||
@example
|
|
||||||
[diff]
|
|
||||||
renames = copy
|
|
||||||
@end example
|
|
||||||
|
|
||||||
@section Repository configuration
|
|
||||||
|
|
||||||
In order to have @command{git send-email} automatically send patches
|
|
||||||
to the ffmpeg-devel mailing list, add the following stanza
|
|
||||||
to @file{/path/to/ffmpeg/repository/.git/config}:
|
|
||||||
|
|
||||||
@example
|
|
||||||
[sendemail]
|
|
||||||
to = ffmpeg-devel@@ffmpeg.org
|
|
||||||
@end example
|
|
||||||
|
|
||||||
@chapter FFmpeg specific
|
|
||||||
|
|
||||||
@section Reverting broken commits
|
|
||||||
|
|
||||||
@example
|
|
||||||
git reset <commit>
|
|
||||||
@end example
|
|
||||||
|
|
||||||
@command{git reset} will uncommit the changes till @var{<commit>} rewriting
|
|
||||||
the current branch history.
|
|
||||||
|
|
||||||
@example
|
|
||||||
git commit --amend
|
|
||||||
@end example
|
|
||||||
|
|
||||||
allows to amend the last commit details quickly.
|
|
||||||
|
|
||||||
@example
|
|
||||||
git rebase -i origin/master
|
|
||||||
@end example
|
|
||||||
|
|
||||||
will replay local commits over the main repository allowing to edit, merge
|
|
||||||
or remove some of them in the process.
|
|
||||||
|
|
||||||
@float NOTE
|
|
||||||
@command{git reset}, @command{git commit --amend} and @command{git rebase}
|
|
||||||
rewrite history, so you should use them ONLY on your local or topic branches.
|
|
||||||
The main repository will reject those changes.
|
|
||||||
@end float
|
|
||||||
|
|
||||||
@example
|
|
||||||
git revert <commit>
|
|
||||||
@end example
|
|
||||||
|
|
||||||
@command{git revert} will generate a revert commit. This will not make the
|
|
||||||
faulty commit disappear from the history.
|
|
||||||
|
|
||||||
@section Pushing changes to remote trees
|
|
||||||
|
|
||||||
@example
|
|
||||||
git push
|
|
||||||
@end example
|
|
||||||
|
|
||||||
Will push the changes to the default remote (@var{origin}).
|
|
||||||
Git will prevent you from pushing changes if the local and remote trees are
|
|
||||||
out of sync. Refer to and to sync the local tree.
|
|
||||||
|
|
||||||
@example
|
|
||||||
git remote add <name> <url>
|
|
||||||
@end example
|
|
||||||
|
|
||||||
Will add additional remote with a name reference, it is useful if you want
|
|
||||||
to push your local branch for review on a remote host.
|
|
||||||
|
|
||||||
@example
|
|
||||||
git push <remote> <refspec>
|
|
||||||
@end example
|
|
||||||
|
|
||||||
Will push the changes to the @var{<remote>} repository.
|
|
||||||
Omitting @var{<refspec>} makes @command{git push} update all the remote
|
|
||||||
branches matching the local ones.
|
|
||||||
|
|
||||||
@section Finding a specific svn revision
|
|
||||||
|
|
||||||
Since version 1.7.1 git supports @var{:/foo} syntax for specifying commits
|
|
||||||
based on a regular expression. see man gitrevisions
|
|
||||||
|
|
||||||
@example
|
|
||||||
git show :/'as revision 23456'
|
|
||||||
@end example
|
|
||||||
|
|
||||||
will show the svn changeset @var{r23456}. With older git versions searching in
|
|
||||||
the @command{git log} output is the easiest option (especially if a pager with
|
|
||||||
search capabilities is used).
|
|
||||||
This commit can be checked out with
|
|
||||||
|
|
||||||
@example
|
|
||||||
git checkout -b svn_23456 :/'as revision 23456'
|
|
||||||
@end example
|
|
||||||
|
|
||||||
or for git < 1.7.1 with
|
|
||||||
|
|
||||||
@example
|
|
||||||
git checkout -b svn_23456 $SHA1
|
|
||||||
@end example
|
|
||||||
|
|
||||||
where @var{$SHA1} is the commit hash from the @command{git log} output.
|
|
||||||
|
|
||||||
|
|
||||||
@chapter pre-push checklist
|
|
||||||
|
|
||||||
Once you have a set of commits that you feel are ready for pushing,
|
|
||||||
work through the following checklist to doublecheck everything is in
|
|
||||||
proper order. This list tries to be exhaustive. In case you are just
|
|
||||||
pushing a typo in a comment, some of the steps may be unnecessary.
|
|
||||||
Apply your common sense, but if in doubt, err on the side of caution.
|
|
||||||
|
|
||||||
First, make sure that the commits and branches you are going to push
|
|
||||||
match what you want pushed and that nothing is missing, extraneous or
|
|
||||||
wrong. You can see what will be pushed by running the git push command
|
|
||||||
with --dry-run first. And then inspecting the commits listed with
|
|
||||||
@command{git log -p 1234567..987654}. The @command{git status} command
|
|
||||||
may help in finding local changes that have been forgotten to be added.
|
|
||||||
|
|
||||||
Next let the code pass through a full run of our testsuite.
|
|
||||||
|
|
||||||
@itemize
|
|
||||||
@item @command{make distclean}
|
|
||||||
@item @command{/path/to/ffmpeg/configure}
|
|
||||||
@item @command{make check}
|
|
||||||
@item if fate fails due to missing samples run @command{make fate-rsync} and retry
|
|
||||||
@end itemize
|
|
||||||
|
|
||||||
Make sure all your changes have been checked before pushing them, the
|
|
||||||
testsuite only checks against regressions and that only to some extend. It does
|
|
||||||
obviously not check newly added features/code to be working unless you have
|
|
||||||
added a test for that (which is recommended).
|
|
||||||
|
|
||||||
Also note that every single commit should pass the test suite, not just
|
|
||||||
the result of a series of patches.
|
|
||||||
|
|
||||||
Once everything passed, push the changes to your public ffmpeg clone and post a
|
|
||||||
merge request to ffmpeg-devel. You can also push them directly but this is not
|
|
||||||
recommended.
|
|
||||||
|
|
||||||
@chapter Server Issues
|
|
||||||
|
|
||||||
Contact the project admins @email{root@@ffmpeg.org} if you have technical
|
|
||||||
problems with the GIT server.
|
|
||||||
@@ -1,273 +0,0 @@
|
|||||||
|
|
||||||
About Git write access:
|
|
||||||
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
||||||
|
|
||||||
Before everything else, you should know how to use GIT properly.
|
|
||||||
Luckily Git comes with excellent documentation.
|
|
||||||
|
|
||||||
git --help
|
|
||||||
man git
|
|
||||||
|
|
||||||
shows you the available subcommands,
|
|
||||||
|
|
||||||
git <command> --help
|
|
||||||
man git-<command>
|
|
||||||
|
|
||||||
shows information about the subcommand <command>.
|
|
||||||
|
|
||||||
The most comprehensive manual is the website Git Reference
|
|
||||||
|
|
||||||
http://gitref.org/
|
|
||||||
|
|
||||||
For more information about the Git project, visit
|
|
||||||
|
|
||||||
http://git-scm.com/
|
|
||||||
|
|
||||||
Consult these resources whenever you have problems, they are quite exhaustive.
|
|
||||||
|
|
||||||
You do not need a special username or password.
|
|
||||||
All you need is to provide a ssh public key to the Git server admin.
|
|
||||||
|
|
||||||
What follows now is a basic introduction to Git and some FFmpeg-specific
|
|
||||||
guidelines. Read it at least once, if you are granted commit privileges to the
|
|
||||||
FFmpeg project you are expected to be familiar with these rules.
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
I. BASICS:
|
|
||||||
==========
|
|
||||||
|
|
||||||
0. Get GIT:
|
|
||||||
|
|
||||||
Most distributions have a git package, if not
|
|
||||||
You can get git from http://git-scm.com/
|
|
||||||
|
|
||||||
|
|
||||||
1. Cloning the source tree:
|
|
||||||
|
|
||||||
git clone git://source.ffmpeg.org/ffmpeg <target>
|
|
||||||
|
|
||||||
This will put the FFmpeg sources into the directory <target>.
|
|
||||||
|
|
||||||
git clone git@source.ffmpeg.org:ffmpeg <target>
|
|
||||||
|
|
||||||
This will put the FFmpeg sources into the directory <target> and let
|
|
||||||
you push back your changes to the remote repository.
|
|
||||||
|
|
||||||
|
|
||||||
2. Updating the source tree to the latest revision:
|
|
||||||
|
|
||||||
git pull (--ff-only)
|
|
||||||
|
|
||||||
pulls in the latest changes from the tracked branch. The tracked branch
|
|
||||||
can be remote. By default the master branch tracks the branch master in
|
|
||||||
the remote origin.
|
|
||||||
Caveat: Since merge commits are forbidden at least for the initial
|
|
||||||
months of git --ff-only or --rebase (see below) are recommended.
|
|
||||||
--ff-only will fail and not create merge commits if your branch
|
|
||||||
has diverged (has a different history) from the tracked branch.
|
|
||||||
|
|
||||||
2.a Rebasing your local branches:
|
|
||||||
|
|
||||||
git pull --rebase
|
|
||||||
|
|
||||||
fetches the changes from the main repository and replays your local commits
|
|
||||||
over it. This is required to keep all your local changes at the top of
|
|
||||||
FFmpeg's master tree. The master tree will reject pushes with merge commits.
|
|
||||||
|
|
||||||
|
|
||||||
3. Adding/removing files/directories:
|
|
||||||
|
|
||||||
git add [-A] <filename/dirname>
|
|
||||||
git rm [-r] <filename/dirname>
|
|
||||||
|
|
||||||
GIT needs to get notified of all changes you make to your working
|
|
||||||
directory that makes files appear or disappear.
|
|
||||||
Line moves across files are automatically tracked.
|
|
||||||
|
|
||||||
|
|
||||||
4. Showing modifications:
|
|
||||||
|
|
||||||
git diff <filename(s)>
|
|
||||||
|
|
||||||
will show all local modifications in your working directory as unified diff.
|
|
||||||
|
|
||||||
|
|
||||||
5. Inspecting the changelog:
|
|
||||||
|
|
||||||
git log <filename(s)>
|
|
||||||
|
|
||||||
You may also use the graphical tools like gitview or gitk or the web
|
|
||||||
interface available at http://source.ffmpeg.org
|
|
||||||
|
|
||||||
6. Checking source tree status:
|
|
||||||
|
|
||||||
git status
|
|
||||||
|
|
||||||
detects all the changes you made and lists what actions will be taken in case
|
|
||||||
of a commit (additions, modifications, deletions, etc.).
|
|
||||||
|
|
||||||
|
|
||||||
7. Committing:
|
|
||||||
|
|
||||||
git diff --check
|
|
||||||
|
|
||||||
to double check your changes before committing them to avoid trouble later
|
|
||||||
on. All experienced developers do this on each and every commit, no matter
|
|
||||||
how small.
|
|
||||||
Every one of them has been saved from looking like a fool by this many times.
|
|
||||||
It's very easy for stray debug output or cosmetic modifications to slip in,
|
|
||||||
please avoid problems through this extra level of scrutiny.
|
|
||||||
|
|
||||||
For cosmetics-only commits you should get (almost) empty output from
|
|
||||||
|
|
||||||
git diff -w -b <filename(s)>
|
|
||||||
|
|
||||||
Also check the output of
|
|
||||||
|
|
||||||
git status
|
|
||||||
|
|
||||||
to make sure you don't have untracked files or deletions.
|
|
||||||
|
|
||||||
git add [-i|-p|-A] <filenames/dirnames>
|
|
||||||
|
|
||||||
Make sure you have told git your name and email address, e.g. by running
|
|
||||||
git config --global user.name "My Name"
|
|
||||||
git config --global user.email my@email.invalid
|
|
||||||
(--global to set the global configuration for all your git checkouts).
|
|
||||||
|
|
||||||
Git will select the changes to the files for commit. Optionally you can use
|
|
||||||
the interactive or the patch mode to select hunk by hunk what should be
|
|
||||||
added to the commit.
|
|
||||||
|
|
||||||
git commit
|
|
||||||
|
|
||||||
Git will commit the selected changes to your current local branch.
|
|
||||||
|
|
||||||
You will be prompted for a log message in an editor, which is either
|
|
||||||
set in your personal configuration file through
|
|
||||||
|
|
||||||
git config core.editor
|
|
||||||
|
|
||||||
or set by one of the following environment variables:
|
|
||||||
GIT_EDITOR, VISUAL or EDITOR.
|
|
||||||
|
|
||||||
Log messages should be concise but descriptive. Explain why you made a change,
|
|
||||||
what you did will be obvious from the changes themselves most of the time.
|
|
||||||
Saying just "bug fix" or "10l" is bad. Remember that people of varying skill
|
|
||||||
levels look at and educate themselves while reading through your code. Don't
|
|
||||||
include filenames in log messages, Git provides that information.
|
|
||||||
|
|
||||||
Possibly make the commit message have a terse, descriptive first line, an
|
|
||||||
empty line and then a full description. The first line will be used to name
|
|
||||||
the patch by git format-patch.
|
|
||||||
|
|
||||||
|
|
||||||
8. Renaming/moving/copying files or contents of files:
|
|
||||||
|
|
||||||
Git automatically tracks such changes, making those normal commits.
|
|
||||||
|
|
||||||
mv/cp path/file otherpath/otherfile
|
|
||||||
|
|
||||||
git add [-A] .
|
|
||||||
|
|
||||||
git commit
|
|
||||||
|
|
||||||
Do not move, rename or copy files of which you are not the maintainer without
|
|
||||||
discussing it on the mailing list first!
|
|
||||||
|
|
||||||
9. Reverting broken commits
|
|
||||||
|
|
||||||
git revert <commit>
|
|
||||||
|
|
||||||
git revert will generate a revert commit. This will not make the faulty
|
|
||||||
commit disappear from the history.
|
|
||||||
|
|
||||||
git reset <commit>
|
|
||||||
|
|
||||||
git reset will uncommit the changes till <commit> rewriting the current
|
|
||||||
branch history.
|
|
||||||
|
|
||||||
git commit --amend
|
|
||||||
|
|
||||||
allows to amend the last commit details quickly.
|
|
||||||
|
|
||||||
git rebase -i origin/master
|
|
||||||
|
|
||||||
will replay local commits over the main repository allowing to edit,
|
|
||||||
merge or remove some of them in the process.
|
|
||||||
|
|
||||||
Note that the reset, commit --amend and rebase rewrite history, so you
|
|
||||||
should use them ONLY on your local or topic branches.
|
|
||||||
|
|
||||||
The main repository will reject those changes.
|
|
||||||
|
|
||||||
10. Preparing a patchset.
|
|
||||||
|
|
||||||
git format-patch <commit> [-o directory]
|
|
||||||
|
|
||||||
will generate a set of patches for each commit between <commit> and
|
|
||||||
current HEAD. E.g.
|
|
||||||
|
|
||||||
git format-patch origin/master
|
|
||||||
|
|
||||||
will generate patches for all commits on current branch which are not
|
|
||||||
present in upstream.
|
|
||||||
A useful shortcut is also
|
|
||||||
|
|
||||||
git format-patch -n
|
|
||||||
|
|
||||||
which will generate patches from last n commits.
|
|
||||||
By default the patches are created in the current directory.
|
|
||||||
|
|
||||||
11. Sending patches for review
|
|
||||||
|
|
||||||
git send-email <commit list|directory>
|
|
||||||
|
|
||||||
will send the patches created by git format-patch or directly generates
|
|
||||||
them. All the email fields can be configured in the global/local
|
|
||||||
configuration or overridden by command line.
|
|
||||||
Note that this tool must often be installed separately (e.g. git-email
|
|
||||||
package on Debian-based distros).
|
|
||||||
|
|
||||||
12. Pushing changes to remote trees
|
|
||||||
|
|
||||||
git push
|
|
||||||
|
|
||||||
Will push the changes to the default remote (origin).
|
|
||||||
Git will prevent you from pushing changes if the local and remote trees are
|
|
||||||
out of sync. Refer to 2 and 2.a to sync the local tree.
|
|
||||||
|
|
||||||
git remote add <name> <url>
|
|
||||||
|
|
||||||
Will add additional remote with a name reference, it is useful if you want
|
|
||||||
to push your local branch for review on a remote host.
|
|
||||||
|
|
||||||
git push <remote> <refspec>
|
|
||||||
|
|
||||||
Will push the changes to the remote repository. Omitting refspec makes git
|
|
||||||
push update all the remote branches matching the local ones.
|
|
||||||
|
|
||||||
13. Finding a specific svn revision
|
|
||||||
|
|
||||||
Since version 1.7.1 git supports ':/foo' syntax for specifying commits
|
|
||||||
based on a regular expression. see man gitrevisions
|
|
||||||
|
|
||||||
git show :/'as revision 23456'
|
|
||||||
|
|
||||||
will show the svn changeset r23456. With older git versions searching in
|
|
||||||
the git log output is the easiest option (especially if a pager with
|
|
||||||
search capabilities is used).
|
|
||||||
This commit can be checked out with
|
|
||||||
|
|
||||||
git checkout -b svn_23456 :/'as revision 23456'
|
|
||||||
|
|
||||||
or for git < 1.7.1 with
|
|
||||||
|
|
||||||
git checkout -b svn_23456 $SHA1
|
|
||||||
|
|
||||||
where $SHA1 is the commit SHA1 from the 'git log' output.
|
|
||||||
|
|
||||||
|
|
||||||
Contact the project admins <root at ffmpeg dot org> if you have technical
|
|
||||||
problems with the GIT server.
|
|
||||||
798
doc/indevs.texi
798
doc/indevs.texi
@@ -1,798 +0,0 @@
|
|||||||
@chapter Input Devices
|
|
||||||
@c man begin INPUT DEVICES
|
|
||||||
|
|
||||||
Input devices are configured elements in FFmpeg which allow to access
|
|
||||||
the data coming from a multimedia device attached to your system.
|
|
||||||
|
|
||||||
When you configure your FFmpeg build, all the supported input devices
|
|
||||||
are enabled by default. You can list all available ones using the
|
|
||||||
configure option "--list-indevs".
|
|
||||||
|
|
||||||
You can disable all the input devices using the configure option
|
|
||||||
"--disable-indevs", and selectively enable an input device using the
|
|
||||||
option "--enable-indev=@var{INDEV}", or you can disable a particular
|
|
||||||
input device using the option "--disable-indev=@var{INDEV}".
|
|
||||||
|
|
||||||
The option "-formats" of the ff* tools will display the list of
|
|
||||||
supported input devices (amongst the demuxers).
|
|
||||||
|
|
||||||
A description of the currently available input devices follows.
|
|
||||||
|
|
||||||
@section alsa
|
|
||||||
|
|
||||||
ALSA (Advanced Linux Sound Architecture) input device.
|
|
||||||
|
|
||||||
To enable this input device during configuration you need libasound
|
|
||||||
installed on your system.
|
|
||||||
|
|
||||||
This device allows capturing from an ALSA device. The name of the
|
|
||||||
device to capture has to be an ALSA card identifier.
|
|
||||||
|
|
||||||
An ALSA identifier has the syntax:
|
|
||||||
@example
|
|
||||||
hw:@var{CARD}[,@var{DEV}[,@var{SUBDEV}]]
|
|
||||||
@end example
|
|
||||||
|
|
||||||
where the @var{DEV} and @var{SUBDEV} components are optional.
|
|
||||||
|
|
||||||
The three arguments (in order: @var{CARD},@var{DEV},@var{SUBDEV})
|
|
||||||
specify card number or identifier, device number and subdevice number
|
|
||||||
(-1 means any).
|
|
||||||
|
|
||||||
To see the list of cards currently recognized by your system check the
|
|
||||||
files @file{/proc/asound/cards} and @file{/proc/asound/devices}.
|
|
||||||
|
|
||||||
For example to capture with @command{ffmpeg} from an ALSA device with
|
|
||||||
card id 0, you may run the command:
|
|
||||||
@example
|
|
||||||
ffmpeg -f alsa -i hw:0 alsaout.wav
|
|
||||||
@end example
|
|
||||||
|
|
||||||
For more information see:
|
|
||||||
@url{http://www.alsa-project.org/alsa-doc/alsa-lib/pcm.html}
|
|
||||||
|
|
||||||
@section bktr
|
|
||||||
|
|
||||||
BSD video input device.
|
|
||||||
|
|
||||||
@section dshow
|
|
||||||
|
|
||||||
Windows DirectShow input device.
|
|
||||||
|
|
||||||
DirectShow support is enabled when FFmpeg is built with the mingw-w64 project.
|
|
||||||
Currently only audio and video devices are supported.
|
|
||||||
|
|
||||||
Multiple devices may be opened as separate inputs, but they may also be
|
|
||||||
opened on the same input, which should improve synchronism between them.
|
|
||||||
|
|
||||||
The input name should be in the format:
|
|
||||||
|
|
||||||
@example
|
|
||||||
@var{TYPE}=@var{NAME}[:@var{TYPE}=@var{NAME}]
|
|
||||||
@end example
|
|
||||||
|
|
||||||
where @var{TYPE} can be either @var{audio} or @var{video},
|
|
||||||
and @var{NAME} is the device's name.
|
|
||||||
|
|
||||||
@subsection Options
|
|
||||||
|
|
||||||
If no options are specified, the device's defaults are used.
|
|
||||||
If the device does not support the requested options, it will
|
|
||||||
fail to open.
|
|
||||||
|
|
||||||
@table @option
|
|
||||||
|
|
||||||
@item video_size
|
|
||||||
Set the video size in the captured video.
|
|
||||||
|
|
||||||
@item framerate
|
|
||||||
Set the frame rate in the captured video.
|
|
||||||
|
|
||||||
@item sample_rate
|
|
||||||
Set the sample rate (in Hz) of the captured audio.
|
|
||||||
|
|
||||||
@item sample_size
|
|
||||||
Set the sample size (in bits) of the captured audio.
|
|
||||||
|
|
||||||
@item channels
|
|
||||||
Set the number of channels in the captured audio.
|
|
||||||
|
|
||||||
@item list_devices
|
|
||||||
If set to @option{true}, print a list of devices and exit.
|
|
||||||
|
|
||||||
@item list_options
|
|
||||||
If set to @option{true}, print a list of selected device's options
|
|
||||||
and exit.
|
|
||||||
|
|
||||||
@item video_device_number
|
|
||||||
Set video device number for devices with same name (starts at 0,
|
|
||||||
defaults to 0).
|
|
||||||
|
|
||||||
@item audio_device_number
|
|
||||||
Set audio device number for devices with same name (starts at 0,
|
|
||||||
defaults to 0).
|
|
||||||
|
|
||||||
@item pixel_format
|
|
||||||
Select pixel format to be used by DirectShow. This may only be set when
|
|
||||||
the video codec is not set or set to rawvideo.
|
|
||||||
|
|
||||||
@item audio_buffer_size
|
|
||||||
Set audio device buffer size in milliseconds (which can directly
|
|
||||||
impact latency, depending on the device).
|
|
||||||
Defaults to using the audio device's
|
|
||||||
default buffer size (typically some multiple of 500ms).
|
|
||||||
Setting this value too low can degrade performance.
|
|
||||||
See also
|
|
||||||
@url{http://msdn.microsoft.com/en-us/library/windows/desktop/dd377582(v=vs.85).aspx}
|
|
||||||
|
|
||||||
@end table
|
|
||||||
|
|
||||||
@subsection Examples
|
|
||||||
|
|
||||||
@itemize
|
|
||||||
|
|
||||||
@item
|
|
||||||
Print the list of DirectShow supported devices and exit:
|
|
||||||
@example
|
|
||||||
$ ffmpeg -list_devices true -f dshow -i dummy
|
|
||||||
@end example
|
|
||||||
|
|
||||||
@item
|
|
||||||
Open video device @var{Camera}:
|
|
||||||
@example
|
|
||||||
$ ffmpeg -f dshow -i video="Camera"
|
|
||||||
@end example
|
|
||||||
|
|
||||||
@item
|
|
||||||
Open second video device with name @var{Camera}:
|
|
||||||
@example
|
|
||||||
$ ffmpeg -f dshow -video_device_number 1 -i video="Camera"
|
|
||||||
@end example
|
|
||||||
|
|
||||||
@item
|
|
||||||
Open video device @var{Camera} and audio device @var{Microphone}:
|
|
||||||
@example
|
|
||||||
$ ffmpeg -f dshow -i video="Camera":audio="Microphone"
|
|
||||||
@end example
|
|
||||||
|
|
||||||
@item
|
|
||||||
Print the list of supported options in selected device and exit:
|
|
||||||
@example
|
|
||||||
$ ffmpeg -list_options true -f dshow -i video="Camera"
|
|
||||||
@end example
|
|
||||||
|
|
||||||
@end itemize
|
|
||||||
|
|
||||||
@section dv1394
|
|
||||||
|
|
||||||
Linux DV 1394 input device.
|
|
||||||
|
|
||||||
@section fbdev
|
|
||||||
|
|
||||||
Linux framebuffer input device.
|
|
||||||
|
|
||||||
The Linux framebuffer is a graphic hardware-independent abstraction
|
|
||||||
layer to show graphics on a computer monitor, typically on the
|
|
||||||
console. It is accessed through a file device node, usually
|
|
||||||
@file{/dev/fb0}.
|
|
||||||
|
|
||||||
For more detailed information read the file
|
|
||||||
Documentation/fb/framebuffer.txt included in the Linux source tree.
|
|
||||||
|
|
||||||
To record from the framebuffer device @file{/dev/fb0} with
|
|
||||||
@command{ffmpeg}:
|
|
||||||
@example
|
|
||||||
ffmpeg -f fbdev -r 10 -i /dev/fb0 out.avi
|
|
||||||
@end example
|
|
||||||
|
|
||||||
You can take a single screenshot image with the command:
|
|
||||||
@example
|
|
||||||
ffmpeg -f fbdev -frames:v 1 -r 1 -i /dev/fb0 screenshot.jpeg
|
|
||||||
@end example
|
|
||||||
|
|
||||||
See also @url{http://linux-fbdev.sourceforge.net/}, and fbset(1).
|
|
||||||
|
|
||||||
@section iec61883
|
|
||||||
|
|
||||||
FireWire DV/HDV input device using libiec61883.
|
|
||||||
|
|
||||||
To enable this input device, you need libiec61883, libraw1394 and
|
|
||||||
libavc1394 installed on your system. Use the configure option
|
|
||||||
@code{--enable-libiec61883} to compile with the device enabled.
|
|
||||||
|
|
||||||
The iec61883 capture device supports capturing from a video device
|
|
||||||
connected via IEEE1394 (FireWire), using libiec61883 and the new Linux
|
|
||||||
FireWire stack (juju). This is the default DV/HDV input method in Linux
|
|
||||||
Kernel 2.6.37 and later, since the old FireWire stack was removed.
|
|
||||||
|
|
||||||
Specify the FireWire port to be used as input file, or "auto"
|
|
||||||
to choose the first port connected.
|
|
||||||
|
|
||||||
@subsection Options
|
|
||||||
|
|
||||||
@table @option
|
|
||||||
|
|
||||||
@item dvtype
|
|
||||||
Override autodetection of DV/HDV. This should only be used if auto
|
|
||||||
detection does not work, or if usage of a different device type
|
|
||||||
should be prohibited. Treating a DV device as HDV (or vice versa) will
|
|
||||||
not work and result in undefined behavior.
|
|
||||||
The values @option{auto}, @option{dv} and @option{hdv} are supported.
|
|
||||||
|
|
||||||
@item dvbuffer
|
|
||||||
Set maxiumum size of buffer for incoming data, in frames. For DV, this
|
|
||||||
is an exact value. For HDV, it is not frame exact, since HDV does
|
|
||||||
not have a fixed frame size.
|
|
||||||
|
|
||||||
@item dvguid
|
|
||||||
Select the capture device by specifying it's GUID. Capturing will only
|
|
||||||
be performed from the specified device and fails if no device with the
|
|
||||||
given GUID is found. This is useful to select the input if multiple
|
|
||||||
devices are connected at the same time.
|
|
||||||
Look at /sys/bus/firewire/devices to find out the GUIDs.
|
|
||||||
|
|
||||||
@end table
|
|
||||||
|
|
||||||
@subsection Examples
|
|
||||||
|
|
||||||
@itemize
|
|
||||||
|
|
||||||
@item
|
|
||||||
Grab and show the input of a FireWire DV/HDV device.
|
|
||||||
@example
|
|
||||||
ffplay -f iec61883 -i auto
|
|
||||||
@end example
|
|
||||||
|
|
||||||
@item
|
|
||||||
Grab and record the input of a FireWire DV/HDV device,
|
|
||||||
using a packet buffer of 100000 packets if the source is HDV.
|
|
||||||
@example
|
|
||||||
ffmpeg -f iec61883 -i auto -hdvbuffer 100000 out.mpg
|
|
||||||
@end example
|
|
||||||
|
|
||||||
@end itemize
|
|
||||||
|
|
||||||
@section jack
|
|
||||||
|
|
||||||
JACK input device.
|
|
||||||
|
|
||||||
To enable this input device during configuration you need libjack
|
|
||||||
installed on your system.
|
|
||||||
|
|
||||||
A JACK input device creates one or more JACK writable clients, one for
|
|
||||||
each audio channel, with name @var{client_name}:input_@var{N}, where
|
|
||||||
@var{client_name} is the name provided by the application, and @var{N}
|
|
||||||
is a number which identifies the channel.
|
|
||||||
Each writable client will send the acquired data to the FFmpeg input
|
|
||||||
device.
|
|
||||||
|
|
||||||
Once you have created one or more JACK readable clients, you need to
|
|
||||||
connect them to one or more JACK writable clients.
|
|
||||||
|
|
||||||
To connect or disconnect JACK clients you can use the @command{jack_connect}
|
|
||||||
and @command{jack_disconnect} programs, or do it through a graphical interface,
|
|
||||||
for example with @command{qjackctl}.
|
|
||||||
|
|
||||||
To list the JACK clients and their properties you can invoke the command
|
|
||||||
@command{jack_lsp}.
|
|
||||||
|
|
||||||
Follows an example which shows how to capture a JACK readable client
|
|
||||||
with @command{ffmpeg}.
|
|
||||||
@example
|
|
||||||
# Create a JACK writable client with name "ffmpeg".
|
|
||||||
$ ffmpeg -f jack -i ffmpeg -y out.wav
|
|
||||||
|
|
||||||
# Start the sample jack_metro readable client.
|
|
||||||
$ jack_metro -b 120 -d 0.2 -f 4000
|
|
||||||
|
|
||||||
# List the current JACK clients.
|
|
||||||
$ jack_lsp -c
|
|
||||||
system:capture_1
|
|
||||||
system:capture_2
|
|
||||||
system:playback_1
|
|
||||||
system:playback_2
|
|
||||||
ffmpeg:input_1
|
|
||||||
metro:120_bpm
|
|
||||||
|
|
||||||
# Connect metro to the ffmpeg writable client.
|
|
||||||
$ jack_connect metro:120_bpm ffmpeg:input_1
|
|
||||||
@end example
|
|
||||||
|
|
||||||
For more information read:
|
|
||||||
@url{http://jackaudio.org/}
|
|
||||||
|
|
||||||
@section lavfi
|
|
||||||
|
|
||||||
Libavfilter input virtual device.
|
|
||||||
|
|
||||||
This input device reads data from the open output pads of a libavfilter
|
|
||||||
filtergraph.
|
|
||||||
|
|
||||||
For each filtergraph open output, the input device will create a
|
|
||||||
corresponding stream which is mapped to the generated output. Currently
|
|
||||||
only video data is supported. The filtergraph is specified through the
|
|
||||||
option @option{graph}.
|
|
||||||
|
|
||||||
@subsection Options
|
|
||||||
|
|
||||||
@table @option
|
|
||||||
|
|
||||||
@item graph
|
|
||||||
Specify the filtergraph to use as input. Each video open output must be
|
|
||||||
labelled by a unique string of the form "out@var{N}", where @var{N} is a
|
|
||||||
number starting from 0 corresponding to the mapped input stream
|
|
||||||
generated by the device.
|
|
||||||
The first unlabelled output is automatically assigned to the "out0"
|
|
||||||
label, but all the others need to be specified explicitly.
|
|
||||||
|
|
||||||
If not specified defaults to the filename specified for the input
|
|
||||||
device.
|
|
||||||
|
|
||||||
@item graph_file
|
|
||||||
Set the filename of the filtergraph to be read and sent to the other
|
|
||||||
filters. Syntax of the filtergraph is the same as the one specified by
|
|
||||||
the option @var{graph}.
|
|
||||||
|
|
||||||
@end table
|
|
||||||
|
|
||||||
@subsection Examples
|
|
||||||
|
|
||||||
@itemize
|
|
||||||
@item
|
|
||||||
Create a color video stream and play it back with @command{ffplay}:
|
|
||||||
@example
|
|
||||||
ffplay -f lavfi -graph "color=c=pink [out0]" dummy
|
|
||||||
@end example
|
|
||||||
|
|
||||||
@item
|
|
||||||
As the previous example, but use filename for specifying the graph
|
|
||||||
description, and omit the "out0" label:
|
|
||||||
@example
|
|
||||||
ffplay -f lavfi color=c=pink
|
|
||||||
@end example
|
|
||||||
|
|
||||||
@item
|
|
||||||
Create three different video test filtered sources and play them:
|
|
||||||
@example
|
|
||||||
ffplay -f lavfi -graph "testsrc [out0]; testsrc,hflip [out1]; testsrc,negate [out2]" test3
|
|
||||||
@end example
|
|
||||||
|
|
||||||
@item
|
|
||||||
Read an audio stream from a file using the amovie source and play it
|
|
||||||
back with @command{ffplay}:
|
|
||||||
@example
|
|
||||||
ffplay -f lavfi "amovie=test.wav"
|
|
||||||
@end example
|
|
||||||
|
|
||||||
@item
|
|
||||||
Read an audio stream and a video stream and play it back with
|
|
||||||
@command{ffplay}:
|
|
||||||
@example
|
|
||||||
ffplay -f lavfi "movie=test.avi[out0];amovie=test.wav[out1]"
|
|
||||||
@end example
|
|
||||||
|
|
||||||
@end itemize
|
|
||||||
|
|
||||||
@section libdc1394
|
|
||||||
|
|
||||||
IIDC1394 input device, based on libdc1394 and libraw1394.
|
|
||||||
|
|
||||||
@section openal
|
|
||||||
|
|
||||||
The OpenAL input device provides audio capture on all systems with a
|
|
||||||
working OpenAL 1.1 implementation.
|
|
||||||
|
|
||||||
To enable this input device during configuration, you need OpenAL
|
|
||||||
headers and libraries installed on your system, and need to configure
|
|
||||||
FFmpeg with @code{--enable-openal}.
|
|
||||||
|
|
||||||
OpenAL headers and libraries should be provided as part of your OpenAL
|
|
||||||
implementation, or as an additional download (an SDK). Depending on your
|
|
||||||
installation you may need to specify additional flags via the
|
|
||||||
@code{--extra-cflags} and @code{--extra-ldflags} for allowing the build
|
|
||||||
system to locate the OpenAL headers and libraries.
|
|
||||||
|
|
||||||
An incomplete list of OpenAL implementations follows:
|
|
||||||
|
|
||||||
@table @strong
|
|
||||||
@item Creative
|
|
||||||
The official Windows implementation, providing hardware acceleration
|
|
||||||
with supported devices and software fallback.
|
|
||||||
See @url{http://openal.org/}.
|
|
||||||
@item OpenAL Soft
|
|
||||||
Portable, open source (LGPL) software implementation. Includes
|
|
||||||
backends for the most common sound APIs on the Windows, Linux,
|
|
||||||
Solaris, and BSD operating systems.
|
|
||||||
See @url{http://kcat.strangesoft.net/openal.html}.
|
|
||||||
@item Apple
|
|
||||||
OpenAL is part of Core Audio, the official Mac OS X Audio interface.
|
|
||||||
See @url{http://developer.apple.com/technologies/mac/audio-and-video.html}
|
|
||||||
@end table
|
|
||||||
|
|
||||||
This device allows to capture from an audio input device handled
|
|
||||||
through OpenAL.
|
|
||||||
|
|
||||||
You need to specify the name of the device to capture in the provided
|
|
||||||
filename. If the empty string is provided, the device will
|
|
||||||
automatically select the default device. You can get the list of the
|
|
||||||
supported devices by using the option @var{list_devices}.
|
|
||||||
|
|
||||||
@subsection Options
|
|
||||||
|
|
||||||
@table @option
|
|
||||||
|
|
||||||
@item channels
|
|
||||||
Set the number of channels in the captured audio. Only the values
|
|
||||||
@option{1} (monaural) and @option{2} (stereo) are currently supported.
|
|
||||||
Defaults to @option{2}.
|
|
||||||
|
|
||||||
@item sample_size
|
|
||||||
Set the sample size (in bits) of the captured audio. Only the values
|
|
||||||
@option{8} and @option{16} are currently supported. Defaults to
|
|
||||||
@option{16}.
|
|
||||||
|
|
||||||
@item sample_rate
|
|
||||||
Set the sample rate (in Hz) of the captured audio.
|
|
||||||
Defaults to @option{44.1k}.
|
|
||||||
|
|
||||||
@item list_devices
|
|
||||||
If set to @option{true}, print a list of devices and exit.
|
|
||||||
Defaults to @option{false}.
|
|
||||||
|
|
||||||
@end table
|
|
||||||
|
|
||||||
@subsection Examples
|
|
||||||
|
|
||||||
Print the list of OpenAL supported devices and exit:
|
|
||||||
@example
|
|
||||||
$ ffmpeg -list_devices true -f openal -i dummy out.ogg
|
|
||||||
@end example
|
|
||||||
|
|
||||||
Capture from the OpenAL device @file{DR-BT101 via PulseAudio}:
|
|
||||||
@example
|
|
||||||
$ ffmpeg -f openal -i 'DR-BT101 via PulseAudio' out.ogg
|
|
||||||
@end example
|
|
||||||
|
|
||||||
Capture from the default device (note the empty string '' as filename):
|
|
||||||
@example
|
|
||||||
$ ffmpeg -f openal -i '' out.ogg
|
|
||||||
@end example
|
|
||||||
|
|
||||||
Capture from two devices simultaneously, writing to two different files,
|
|
||||||
within the same @command{ffmpeg} command:
|
|
||||||
@example
|
|
||||||
$ ffmpeg -f openal -i 'DR-BT101 via PulseAudio' out1.ogg -f openal -i 'ALSA Default' out2.ogg
|
|
||||||
@end example
|
|
||||||
Note: not all OpenAL implementations support multiple simultaneous capture -
|
|
||||||
try the latest OpenAL Soft if the above does not work.
|
|
||||||
|
|
||||||
@section oss
|
|
||||||
|
|
||||||
Open Sound System input device.
|
|
||||||
|
|
||||||
The filename to provide to the input device is the device node
|
|
||||||
representing the OSS input device, and is usually set to
|
|
||||||
@file{/dev/dsp}.
|
|
||||||
|
|
||||||
For example to grab from @file{/dev/dsp} using @command{ffmpeg} use the
|
|
||||||
command:
|
|
||||||
@example
|
|
||||||
ffmpeg -f oss -i /dev/dsp /tmp/oss.wav
|
|
||||||
@end example
|
|
||||||
|
|
||||||
For more information about OSS see:
|
|
||||||
@url{http://manuals.opensound.com/usersguide/dsp.html}
|
|
||||||
|
|
||||||
@section pulse
|
|
||||||
|
|
||||||
pulseaudio input device.
|
|
||||||
|
|
||||||
To enable this input device during configuration you need libpulse-simple
|
|
||||||
installed in your system.
|
|
||||||
|
|
||||||
The filename to provide to the input device is a source device or the
|
|
||||||
string "default"
|
|
||||||
|
|
||||||
To list the pulse source devices and their properties you can invoke
|
|
||||||
the command @command{pactl list sources}.
|
|
||||||
|
|
||||||
@example
|
|
||||||
ffmpeg -f pulse -i default /tmp/pulse.wav
|
|
||||||
@end example
|
|
||||||
|
|
||||||
@subsection @var{server} AVOption
|
|
||||||
|
|
||||||
The syntax is:
|
|
||||||
@example
|
|
||||||
-server @var{server name}
|
|
||||||
@end example
|
|
||||||
|
|
||||||
Connects to a specific server.
|
|
||||||
|
|
||||||
@subsection @var{name} AVOption
|
|
||||||
|
|
||||||
The syntax is:
|
|
||||||
@example
|
|
||||||
-name @var{application name}
|
|
||||||
@end example
|
|
||||||
|
|
||||||
Specify the application name pulse will use when showing active clients,
|
|
||||||
by default it is the LIBAVFORMAT_IDENT string
|
|
||||||
|
|
||||||
@subsection @var{stream_name} AVOption
|
|
||||||
|
|
||||||
The syntax is:
|
|
||||||
@example
|
|
||||||
-stream_name @var{stream name}
|
|
||||||
@end example
|
|
||||||
|
|
||||||
Specify the stream name pulse will use when showing active streams,
|
|
||||||
by default it is "record"
|
|
||||||
|
|
||||||
@subsection @var{sample_rate} AVOption
|
|
||||||
|
|
||||||
The syntax is:
|
|
||||||
@example
|
|
||||||
-sample_rate @var{samplerate}
|
|
||||||
@end example
|
|
||||||
|
|
||||||
Specify the samplerate in Hz, by default 48kHz is used.
|
|
||||||
|
|
||||||
@subsection @var{channels} AVOption
|
|
||||||
|
|
||||||
The syntax is:
|
|
||||||
@example
|
|
||||||
-channels @var{N}
|
|
||||||
@end example
|
|
||||||
|
|
||||||
Specify the channels in use, by default 2 (stereo) is set.
|
|
||||||
|
|
||||||
@subsection @var{frame_size} AVOption
|
|
||||||
|
|
||||||
The syntax is:
|
|
||||||
@example
|
|
||||||
-frame_size @var{bytes}
|
|
||||||
@end example
|
|
||||||
|
|
||||||
Specify the number of byte per frame, by default it is set to 1024.
|
|
||||||
|
|
||||||
@subsection @var{fragment_size} AVOption
|
|
||||||
|
|
||||||
The syntax is:
|
|
||||||
@example
|
|
||||||
-fragment_size @var{bytes}
|
|
||||||
@end example
|
|
||||||
|
|
||||||
Specify the minimal buffering fragment in pulseaudio, it will affect the
|
|
||||||
audio latency. By default it is unset.
|
|
||||||
|
|
||||||
@section sndio
|
|
||||||
|
|
||||||
sndio input device.
|
|
||||||
|
|
||||||
To enable this input device during configuration you need libsndio
|
|
||||||
installed on your system.
|
|
||||||
|
|
||||||
The filename to provide to the input device is the device node
|
|
||||||
representing the sndio input device, and is usually set to
|
|
||||||
@file{/dev/audio0}.
|
|
||||||
|
|
||||||
For example to grab from @file{/dev/audio0} using @command{ffmpeg} use the
|
|
||||||
command:
|
|
||||||
@example
|
|
||||||
ffmpeg -f sndio -i /dev/audio0 /tmp/oss.wav
|
|
||||||
@end example
|
|
||||||
|
|
||||||
@section video4linux2, v4l2
|
|
||||||
|
|
||||||
Video4Linux2 input video device.
|
|
||||||
|
|
||||||
"v4l2" can be used as alias for "video4linux2".
|
|
||||||
|
|
||||||
If FFmpeg is built with v4l-utils support (by using the
|
|
||||||
@code{--enable-libv4l2} configure option), it is possible to use it with the
|
|
||||||
@code{-use_libv4l2} input device option.
|
|
||||||
|
|
||||||
The name of the device to grab is a file device node, usually Linux
|
|
||||||
systems tend to automatically create such nodes when the device
|
|
||||||
(e.g. an USB webcam) is plugged into the system, and has a name of the
|
|
||||||
kind @file{/dev/video@var{N}}, where @var{N} is a number associated to
|
|
||||||
the device.
|
|
||||||
|
|
||||||
Video4Linux2 devices usually support a limited set of
|
|
||||||
@var{width}x@var{height} sizes and frame rates. You can check which are
|
|
||||||
supported using @command{-list_formats all} for Video4Linux2 devices.
|
|
||||||
Some devices, like TV cards, support one or more standards. It is possible
|
|
||||||
to list all the supported standards using @command{-list_standards all}.
|
|
||||||
|
|
||||||
The time base for the timestamps is 1 microsecond. Depending on the kernel
|
|
||||||
version and configuration, the timestamps may be derived from the real time
|
|
||||||
clock (origin at the Unix Epoch) or the monotonic clock (origin usually at
|
|
||||||
boot time, unaffected by NTP or manual changes to the clock). The
|
|
||||||
@option{-timestamps abs} or @option{-ts abs} option can be used to force
|
|
||||||
conversion into the real time clock.
|
|
||||||
|
|
||||||
Some usage examples of the video4linux2 device with @command{ffmpeg}
|
|
||||||
and @command{ffplay}:
|
|
||||||
@itemize
|
|
||||||
@item
|
|
||||||
Grab and show the input of a video4linux2 device:
|
|
||||||
@example
|
|
||||||
ffplay -f video4linux2 -framerate 30 -video_size hd720 /dev/video0
|
|
||||||
@end example
|
|
||||||
|
|
||||||
@item
|
|
||||||
Grab and record the input of a video4linux2 device, leave the
|
|
||||||
frame rate and size as previously set:
|
|
||||||
@example
|
|
||||||
ffmpeg -f video4linux2 -input_format mjpeg -i /dev/video0 out.mpeg
|
|
||||||
@end example
|
|
||||||
@end itemize
|
|
||||||
|
|
||||||
For more information about Video4Linux, check @url{http://linuxtv.org/}.
|
|
||||||
|
|
||||||
@subsection Options
|
|
||||||
|
|
||||||
@table @option
|
|
||||||
@item standard
|
|
||||||
Set the standard. Must be the name of a supported standard. To get a
|
|
||||||
list of the supported standards, use the @option{list_standards}
|
|
||||||
option.
|
|
||||||
|
|
||||||
@item channel
|
|
||||||
Set the input channel number. Default to -1, which means using the
|
|
||||||
previously selected channel.
|
|
||||||
|
|
||||||
@item video_size
|
|
||||||
Set the video frame size. The argument must be a string in the form
|
|
||||||
@var{WIDTH}x@var{HEIGHT} or a valid size abbreviation.
|
|
||||||
|
|
||||||
@item pixel_format
|
|
||||||
Select the pixel format (only valid for raw video input).
|
|
||||||
|
|
||||||
@item input_format
|
|
||||||
Set the preferred pixel format (for raw video) or a codec name.
|
|
||||||
This option allows to select the input format, when several are
|
|
||||||
available.
|
|
||||||
|
|
||||||
@item framerate
|
|
||||||
Set the preferred video frame rate.
|
|
||||||
|
|
||||||
@item list_formats
|
|
||||||
List available formats (supported pixel formats, codecs, and frame
|
|
||||||
sizes) and exit.
|
|
||||||
|
|
||||||
Available values are:
|
|
||||||
@table @samp
|
|
||||||
@item all
|
|
||||||
Show all available (compressed and non-compressed) formats.
|
|
||||||
|
|
||||||
@item raw
|
|
||||||
Show only raw video (non-compressed) formats.
|
|
||||||
|
|
||||||
@item compressed
|
|
||||||
Show only compressed formats.
|
|
||||||
@end table
|
|
||||||
|
|
||||||
@item list_standards
|
|
||||||
List supported standards and exit.
|
|
||||||
|
|
||||||
Available values are:
|
|
||||||
@table @samp
|
|
||||||
@item all
|
|
||||||
Show all supported standards.
|
|
||||||
@end table
|
|
||||||
|
|
||||||
@item timestamps, ts
|
|
||||||
Set type of timestamps for grabbed frames.
|
|
||||||
|
|
||||||
Available values are:
|
|
||||||
@table @samp
|
|
||||||
@item default
|
|
||||||
Use timestamps from the kernel.
|
|
||||||
|
|
||||||
@item abs
|
|
||||||
Use absolute timestamps (wall clock).
|
|
||||||
|
|
||||||
@item mono2abs
|
|
||||||
Force conversion from monotonic to absolute timestamps.
|
|
||||||
@end table
|
|
||||||
|
|
||||||
Default value is @code{default}.
|
|
||||||
@end table
|
|
||||||
|
|
||||||
@section vfwcap
|
|
||||||
|
|
||||||
VfW (Video for Windows) capture input device.
|
|
||||||
|
|
||||||
The filename passed as input is the capture driver number, ranging from
|
|
||||||
0 to 9. You may use "list" as filename to print a list of drivers. Any
|
|
||||||
other filename will be interpreted as device number 0.
|
|
||||||
|
|
||||||
@section x11grab
|
|
||||||
|
|
||||||
X11 video input device.
|
|
||||||
|
|
||||||
This device allows to capture a region of an X11 display.
|
|
||||||
|
|
||||||
The filename passed as input has the syntax:
|
|
||||||
@example
|
|
||||||
[@var{hostname}]:@var{display_number}.@var{screen_number}[+@var{x_offset},@var{y_offset}]
|
|
||||||
@end example
|
|
||||||
|
|
||||||
@var{hostname}:@var{display_number}.@var{screen_number} specifies the
|
|
||||||
X11 display name of the screen to grab from. @var{hostname} can be
|
|
||||||
omitted, and defaults to "localhost". The environment variable
|
|
||||||
@env{DISPLAY} contains the default display name.
|
|
||||||
|
|
||||||
@var{x_offset} and @var{y_offset} specify the offsets of the grabbed
|
|
||||||
area with respect to the top-left border of the X11 screen. They
|
|
||||||
default to 0.
|
|
||||||
|
|
||||||
Check the X11 documentation (e.g. man X) for more detailed information.
|
|
||||||
|
|
||||||
Use the @command{dpyinfo} program for getting basic information about the
|
|
||||||
properties of your X11 display (e.g. grep for "name" or "dimensions").
|
|
||||||
|
|
||||||
For example to grab from @file{:0.0} using @command{ffmpeg}:
|
|
||||||
@example
|
|
||||||
ffmpeg -f x11grab -r 25 -s cif -i :0.0 out.mpg
|
|
||||||
@end example
|
|
||||||
|
|
||||||
Grab at position @code{10,20}:
|
|
||||||
@example
|
|
||||||
ffmpeg -f x11grab -r 25 -s cif -i :0.0+10,20 out.mpg
|
|
||||||
@end example
|
|
||||||
|
|
||||||
@subsection Options
|
|
||||||
|
|
||||||
@table @option
|
|
||||||
@item draw_mouse
|
|
||||||
Specify whether to draw the mouse pointer. A value of @code{0} specify
|
|
||||||
not to draw the pointer. Default value is @code{1}.
|
|
||||||
|
|
||||||
@item follow_mouse
|
|
||||||
Make the grabbed area follow the mouse. The argument can be
|
|
||||||
@code{centered} or a number of pixels @var{PIXELS}.
|
|
||||||
|
|
||||||
When it is specified with "centered", the grabbing region follows the mouse
|
|
||||||
pointer and keeps the pointer at the center of region; otherwise, the region
|
|
||||||
follows only when the mouse pointer reaches within @var{PIXELS} (greater than
|
|
||||||
zero) to the edge of region.
|
|
||||||
|
|
||||||
For example:
|
|
||||||
@example
|
|
||||||
ffmpeg -f x11grab -follow_mouse centered -r 25 -s cif -i :0.0 out.mpg
|
|
||||||
@end example
|
|
||||||
|
|
||||||
To follow only when the mouse pointer reaches within 100 pixels to edge:
|
|
||||||
@example
|
|
||||||
ffmpeg -f x11grab -follow_mouse 100 -r 25 -s cif -i :0.0 out.mpg
|
|
||||||
@end example
|
|
||||||
|
|
||||||
@item framerate
|
|
||||||
Set the grabbing frame rate. Default value is @code{ntsc},
|
|
||||||
corresponding to a frame rate of @code{30000/1001}.
|
|
||||||
|
|
||||||
@item show_region
|
|
||||||
Show grabbed region on screen.
|
|
||||||
|
|
||||||
If @var{show_region} is specified with @code{1}, then the grabbing
|
|
||||||
region will be indicated on screen. With this option, it is easy to
|
|
||||||
know what is being grabbed if only a portion of the screen is grabbed.
|
|
||||||
|
|
||||||
For example:
|
|
||||||
@example
|
|
||||||
ffmpeg -f x11grab -show_region 1 -r 25 -s cif -i :0.0+10,20 out.mpg
|
|
||||||
@end example
|
|
||||||
|
|
||||||
With @var{follow_mouse}:
|
|
||||||
@example
|
|
||||||
ffmpeg -f x11grab -follow_mouse centered -show_region 1 -r 25 -s cif -i :0.0 out.mpg
|
|
||||||
@end example
|
|
||||||
|
|
||||||
@item video_size
|
|
||||||
Set the video frame size. Default value is @code{vga}.
|
|
||||||
@end table
|
|
||||||
|
|
||||||
@c man end INPUT DEVICES
|
|
||||||
@@ -5,42 +5,49 @@ NOTE: This is a draft.
|
|||||||
|
|
||||||
Overview:
|
Overview:
|
||||||
---------
|
---------
|
||||||
|
FFmpeg uses Roundup for tracking issues, new issues and changes to
|
||||||
FFmpeg uses Trac for tracking issues, new issues and changes to
|
existing issues can be done through a web interface and through email.
|
||||||
existing issues can be done through a web interface.
|
|
||||||
|
|
||||||
Issues can be different kinds of things we want to keep track of
|
|
||||||
but that do not belong into the source tree itself. This includes
|
|
||||||
bug reports, patches, feature requests and license violations. We
|
|
||||||
might add more items to this list in the future, so feel free to
|
|
||||||
propose a new `type of issue' on the ffmpeg-devel mailing list if
|
|
||||||
you feel it is worth tracking.
|
|
||||||
|
|
||||||
It is possible to subscribe to individual issues by adding yourself to the
|
It is possible to subscribe to individual issues by adding yourself to the
|
||||||
Cc list or to subscribe to the ffmpeg-trac mailing list which receives
|
nosy list or to subscribe to the ffmpeg-issues mailing list which receives
|
||||||
a mail for every change to every issue.
|
a mail for every change to every issue. Replies to such mails will also
|
||||||
|
be properly added to the respective issue.
|
||||||
(the above does all work already after light testing)
|
(the above does all work already after light testing)
|
||||||
|
The subscription URL for the ffmpeg-issues list is:
|
||||||
The subscription URL for the ffmpeg-trac list is:
|
http://live.polito/mailman/listinfo/ffmpeg-issues
|
||||||
http(s)://ffmpeg.org/mailman/listinfo/ffmpeg-trac
|
|
||||||
The URL of the webinterface of the tracker is:
|
The URL of the webinterface of the tracker is:
|
||||||
http(s)://trac.ffmpeg.org
|
http(s)://roundup.ffmpeg/roundup/ffmpeg/
|
||||||
|
Note the URLs in this document are obfuscated, you must append the top level
|
||||||
|
domain for non-profit organizations to the tracker, and of Italy to the
|
||||||
|
mailing list.
|
||||||
|
|
||||||
|
Email Interface:
|
||||||
|
----------------
|
||||||
|
There is a mailing list to which all new issues and changes to existing issues
|
||||||
|
are sent. You can subscribe through
|
||||||
|
http://live.polito/mailman/listinfo/ffmpeg-issues
|
||||||
|
Replies to messages there will have their text added to the specific issues.
|
||||||
|
Attachments will be added as if they had been uploaded via the web interface.
|
||||||
|
You can change the status, substatus, topic, ... by changing the subject in
|
||||||
|
your reply like:
|
||||||
|
Re: [issue94] register_avcodec and allcodecs.h [type=patch;status=open;substatus=approved]
|
||||||
|
Roundup will then change things as you requested and remove the [...] from
|
||||||
|
the subject before forwarding the mail to the mailing list.
|
||||||
|
|
||||||
|
|
||||||
|
NOTE: issue = (bug report || patch || feature request)
|
||||||
|
|
||||||
Type:
|
Type:
|
||||||
-----
|
-----
|
||||||
bug / defect
|
bug
|
||||||
An error, flaw, mistake, failure, or fault in FFmpeg or libav* that
|
An error, flaw, mistake, failure, or fault in FFmpeg or libav* that
|
||||||
prevents it from behaving as intended.
|
prevents it from behaving as intended.
|
||||||
|
|
||||||
feature request / enhancement
|
feature request
|
||||||
Request of support for encoding or decoding of a new codec, container
|
Request of support for encoding or decoding of a new codec, container
|
||||||
or variant.
|
or variant.
|
||||||
Request of support for more, less or plain different output or behavior
|
Request of support for more, less or plain different output or behavior
|
||||||
where the current implementation cannot be considered wrong.
|
where the current implementation cannot be considered wrong.
|
||||||
|
|
||||||
license violation
|
|
||||||
ticket to keep track of (L)GPL violations of ffmpeg by others
|
|
||||||
|
|
||||||
patch
|
patch
|
||||||
A patch as generated by diff which conforms to the patch submission and
|
A patch as generated by diff which conforms to the patch submission and
|
||||||
development policy.
|
development policy.
|
||||||
@@ -61,8 +68,6 @@ important
|
|||||||
the separation to normal is somewhat fuzzy.
|
the separation to normal is somewhat fuzzy.
|
||||||
For feature requests this priority would be used for things many people
|
For feature requests this priority would be used for things many people
|
||||||
want.
|
want.
|
||||||
Regressions also should be marked as important, regressions are bugs that
|
|
||||||
don't exist in a past revision or another branch.
|
|
||||||
|
|
||||||
normal
|
normal
|
||||||
|
|
||||||
@@ -92,17 +97,6 @@ closed
|
|||||||
final state
|
final state
|
||||||
|
|
||||||
|
|
||||||
Analyzed flag:
|
|
||||||
--------------
|
|
||||||
Bugs which have been analyzed and where it is understood what causes them
|
|
||||||
and which exact chain of events triggers them. This analysis should be
|
|
||||||
available as a message in the bug report.
|
|
||||||
Note, do not change the status to analyzed without also providing a clear
|
|
||||||
and understandable analysis.
|
|
||||||
This state implicates that the bug either has been reproduced or that
|
|
||||||
reproduction is not needed as the bug is already understood.
|
|
||||||
|
|
||||||
|
|
||||||
Type/Status/Substatus:
|
Type/Status/Substatus:
|
||||||
----------
|
----------
|
||||||
*/new/new
|
*/new/new
|
||||||
@@ -130,6 +124,24 @@ Type/Status/Substatus:
|
|||||||
Issues for which some information has been requested by the developers,
|
Issues for which some information has been requested by the developers,
|
||||||
but which has not been provided by anyone within reasonable time.
|
but which has not been provided by anyone within reasonable time.
|
||||||
|
|
||||||
|
bug/open/reproduced
|
||||||
|
Bugs which have been reproduced.
|
||||||
|
|
||||||
|
bug/open/analyzed
|
||||||
|
Bugs which have been analyzed and where it is understood what causes them
|
||||||
|
and which exact chain of events triggers them. This analysis should be
|
||||||
|
available as a message in the bug report.
|
||||||
|
Note, do not change the status to analyzed without also providing a clear
|
||||||
|
and understandable analysis.
|
||||||
|
This state implicates that the bug either has been reproduced or that
|
||||||
|
reproduction is not needed as the bug is already understood.
|
||||||
|
|
||||||
|
bug/open/needs_more_info
|
||||||
|
Bug reports which are incomplete and or where more information is needed
|
||||||
|
from the submitter or another person who can provide it.
|
||||||
|
This state implicates that the bug has not been analyzed or reproduced.
|
||||||
|
Note, the idea behind needs_more_info is to offload work from the
|
||||||
|
developers to the users whenever possible.
|
||||||
|
|
||||||
bug/closed/fixed
|
bug/closed/fixed
|
||||||
Bugs which have to the best of our knowledge been fixed.
|
Bugs which have to the best of our knowledge been fixed.
|
||||||
@@ -163,6 +175,10 @@ patch/closed/applied
|
|||||||
patch/closed/rejected
|
patch/closed/rejected
|
||||||
Patches which have been rejected.
|
Patches which have been rejected.
|
||||||
|
|
||||||
|
feature_request/open/needs_more_info
|
||||||
|
Feature requests where it is not clear what exactly is wanted
|
||||||
|
(these also could be closed as invalid ...).
|
||||||
|
|
||||||
feature_request/closed/implemented
|
feature_request/closed/implemented
|
||||||
Feature requests which have been implemented.
|
Feature requests which have been implemented.
|
||||||
|
|
||||||
@@ -174,10 +190,12 @@ Note, please do not use type-status-substatus combinations other than the
|
|||||||
above without asking on ffmpeg-dev first!
|
above without asking on ffmpeg-dev first!
|
||||||
|
|
||||||
Note2, if you provide the requested info do not forget to remove the
|
Note2, if you provide the requested info do not forget to remove the
|
||||||
needs_more_info substatus.
|
needs_more_info substate.
|
||||||
|
|
||||||
Component:
|
Topic:
|
||||||
----------
|
------
|
||||||
|
A topic is a tag you should add to your issue in order to make grouping them
|
||||||
|
easier.
|
||||||
|
|
||||||
avcodec
|
avcodec
|
||||||
issues in libavcodec/*
|
issues in libavcodec/*
|
||||||
@@ -197,9 +215,6 @@ ffmpeg
|
|||||||
ffplay
|
ffplay
|
||||||
issues in or related to ffplay.c
|
issues in or related to ffplay.c
|
||||||
|
|
||||||
ffprobe
|
|
||||||
issues in or related to ffprobe.c
|
|
||||||
|
|
||||||
ffserver
|
ffserver
|
||||||
issues in or related to ffserver.c
|
issues in or related to ffserver.c
|
||||||
|
|
||||||
@@ -207,7 +222,7 @@ build system
|
|||||||
issues in or related to configure/Makefile
|
issues in or related to configure/Makefile
|
||||||
|
|
||||||
regression
|
regression
|
||||||
bugs which were not present in a past revision
|
bugs which were working in a past revision
|
||||||
|
|
||||||
trac
|
roundup
|
||||||
issues related to our issue tracker
|
issues related to our issue tracker
|
||||||
|
|||||||
@@ -1,48 +0,0 @@
|
|||||||
\input texinfo @c -*- texinfo -*-
|
|
||||||
|
|
||||||
@settitle Libavcodec Documentation
|
|
||||||
@titlepage
|
|
||||||
@center @titlefont{Libavcodec Documentation}
|
|
||||||
@end titlepage
|
|
||||||
|
|
||||||
@top
|
|
||||||
|
|
||||||
@contents
|
|
||||||
|
|
||||||
@chapter Description
|
|
||||||
@c man begin DESCRIPTION
|
|
||||||
|
|
||||||
The libavcodec library provides a generic encoding/decoding framework
|
|
||||||
and contains multiple decoders and encoders for audio, video and
|
|
||||||
subtitle streams, and several bitstream filters.
|
|
||||||
|
|
||||||
The shared architecture provides various services ranging from bit
|
|
||||||
stream I/O to DSP optimizations, and makes it suitable for
|
|
||||||
implementing robust and fast codecs as well as for experimentation.
|
|
||||||
|
|
||||||
@c man end DESCRIPTION
|
|
||||||
|
|
||||||
@chapter See Also
|
|
||||||
|
|
||||||
@ifhtml
|
|
||||||
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
|
|
||||||
@url{ffmpeg-codecs.html,ffmpeg-codecs}, @url{ffmpeg-bitstream-filters.html,bitstream-filters},
|
|
||||||
@url{libavutil.html,libavutil}
|
|
||||||
@end ifhtml
|
|
||||||
|
|
||||||
@ifnothtml
|
|
||||||
ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1),
|
|
||||||
ffmpeg-codecs(1), ffmpeg-bitstream-filters(1),
|
|
||||||
libavutil(3)
|
|
||||||
@end ifnothtml
|
|
||||||
|
|
||||||
@include authors.texi
|
|
||||||
|
|
||||||
@ignore
|
|
||||||
|
|
||||||
@setfilename libavcodec
|
|
||||||
@settitle media streams decoding and encoding library
|
|
||||||
|
|
||||||
@end ignore
|
|
||||||
|
|
||||||
@bye
|
|
||||||
@@ -1,45 +0,0 @@
|
|||||||
\input texinfo @c -*- texinfo -*-
|
|
||||||
|
|
||||||
@settitle Libavdevice Documentation
|
|
||||||
@titlepage
|
|
||||||
@center @titlefont{Libavdevice Documentation}
|
|
||||||
@end titlepage
|
|
||||||
|
|
||||||
@top
|
|
||||||
|
|
||||||
@contents
|
|
||||||
|
|
||||||
@chapter Description
|
|
||||||
@c man begin DESCRIPTION
|
|
||||||
|
|
||||||
The libavdevice library provides a generic framework for grabbing from
|
|
||||||
and rendering to many common multimedia input/output devices, and
|
|
||||||
supports several input and output devices, including Video4Linux2,
|
|
||||||
VfW, DShow, and ALSA.
|
|
||||||
|
|
||||||
@c man end DESCRIPTION
|
|
||||||
|
|
||||||
@chapter See Also
|
|
||||||
|
|
||||||
@ifhtml
|
|
||||||
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
|
|
||||||
@url{ffmpeg-devices.html,ffmpeg-devices},
|
|
||||||
@url{libavutil.html,libavutil}, @url{libavcodec.html,libavcodec}, @url{libavformat.html,libavformat}
|
|
||||||
@end ifhtml
|
|
||||||
|
|
||||||
@ifnothtml
|
|
||||||
ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1),
|
|
||||||
ffmpeg-devices(1),
|
|
||||||
libavutil(3), libavcodec(3), libavformat(3)
|
|
||||||
@end ifnothtml
|
|
||||||
|
|
||||||
@include authors.texi
|
|
||||||
|
|
||||||
@ignore
|
|
||||||
|
|
||||||
@setfilename libavdevice
|
|
||||||
@settitle multimedia device handling library
|
|
||||||
|
|
||||||
@end ignore
|
|
||||||
|
|
||||||
@bye
|
|
||||||
@@ -2,43 +2,306 @@
|
|||||||
|
|
||||||
@settitle Libavfilter Documentation
|
@settitle Libavfilter Documentation
|
||||||
@titlepage
|
@titlepage
|
||||||
|
@sp 7
|
||||||
@center @titlefont{Libavfilter Documentation}
|
@center @titlefont{Libavfilter Documentation}
|
||||||
|
@sp 3
|
||||||
@end titlepage
|
@end titlepage
|
||||||
|
|
||||||
@top
|
|
||||||
|
|
||||||
@contents
|
@chapter Introduction
|
||||||
|
|
||||||
@chapter Description
|
Libavfilter is the filtering API of FFmpeg. It is the substitute of the
|
||||||
@c man begin DESCRIPTION
|
now deprecated 'vhooks' and started as a Google Summer of Code project.
|
||||||
|
|
||||||
The libavfilter library provides a generic audio/video filtering
|
Integrating libavfilter into the main FFmpeg repository is a work in
|
||||||
framework containing several filters, sources and sinks.
|
progress. If you wish to try the unfinished development code of
|
||||||
|
libavfilter then check it out from the libavfilter repository into
|
||||||
|
some directory of your choice by:
|
||||||
|
|
||||||
@c man end DESCRIPTION
|
@example
|
||||||
|
svn checkout svn://svn.ffmpeg.org/soc/libavfilter
|
||||||
|
@end example
|
||||||
|
|
||||||
@chapter See Also
|
And then read the README file in the top directory to learn how to
|
||||||
|
integrate it into ffmpeg and ffplay.
|
||||||
|
|
||||||
@ifhtml
|
But note that there may still be serious bugs in the code and its API
|
||||||
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
|
and ABI should not be considered stable yet!
|
||||||
@url{ffmpeg-filters.html,ffmpeg-filters},
|
|
||||||
@url{libavutil.html,libavutil}, @url{libswscale.html,libswscale}, @url{libswresample.html,libswresample},
|
|
||||||
@url{libavcodec.html,libavcodec}, @url{libavformat.html,libavformat}, @url{libavdevice.html,libavdevice}
|
|
||||||
@end ifhtml
|
|
||||||
|
|
||||||
@ifnothtml
|
@chapter Tutorial
|
||||||
ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1),
|
|
||||||
ffmpeg-filters(1),
|
|
||||||
libavutil(3), libswscale(3), libswresample(3), libavcodec(3), libavformat(3), libavdevice(3)
|
|
||||||
@end ifnothtml
|
|
||||||
|
|
||||||
@include authors.texi
|
In libavfilter, it is possible for filters to have multiple inputs and
|
||||||
|
multiple outputs.
|
||||||
|
To illustrate the sorts of things that are possible, we can
|
||||||
|
use a complex filter graph. For example, the following one:
|
||||||
|
|
||||||
@ignore
|
@example
|
||||||
|
input --> split --> fifo -----------------------> overlay --> output
|
||||||
|
| ^
|
||||||
|
| |
|
||||||
|
+------> fifo --> crop --> vflip --------+
|
||||||
|
@end example
|
||||||
|
|
||||||
@setfilename libavfilter
|
splits the stream in two streams, sends one stream through the crop filter
|
||||||
@settitle multimedia filtering library
|
and the vflip filter before merging it back with the other stream by
|
||||||
|
overlaying it on top. You can use the following command to achieve this:
|
||||||
|
|
||||||
@end ignore
|
@example
|
||||||
|
./ffmpeg -i in.avi -s 240x320 -vfilters "[in] split [T1], fifo, [T2] overlay= 0:240 [out]; [T1] fifo, crop=0:0:-1:240, vflip [T2]
|
||||||
|
@end example
|
||||||
|
|
||||||
|
where input_video.avi has a vertical resolution of 480 pixels. The
|
||||||
|
result will be that in output the top half of the video is mirrored
|
||||||
|
onto the bottom half.
|
||||||
|
|
||||||
|
Video filters are loaded using the @var{-vfilters} option passed to
|
||||||
|
ffmpeg or to ffplay. Filters in the same linear chain are separated by
|
||||||
|
commas. In our example, @var{split, fifo, overlay} are in one linear
|
||||||
|
chain, and @var{fifo, crop, vflip} are in another. The points where
|
||||||
|
the linear chains join are labeled by names enclosed in square
|
||||||
|
brackets. In our example, that is @var{[T1]} and @var{[T2]}. The magic
|
||||||
|
labels @var{[in]} and @var{[out]} are the points where video is input
|
||||||
|
and output.
|
||||||
|
|
||||||
|
Some filters take in input a list of parameters: they are specified
|
||||||
|
after the filter name and an equal sign, and are separated each other
|
||||||
|
by a semicolon.
|
||||||
|
|
||||||
|
There exist so-called @var{source filters} that do not have a video
|
||||||
|
input, and we expect in the future some @var{sink filters} that will
|
||||||
|
not have video output.
|
||||||
|
|
||||||
|
@chapter graph2dot
|
||||||
|
|
||||||
|
The @file{graph2dot} program included in the FFmpeg @file{tools}
|
||||||
|
directory can be used to parse a filter graph description and issue a
|
||||||
|
corresponding textual representation in the dot language.
|
||||||
|
|
||||||
|
Invoke the command:
|
||||||
|
@example
|
||||||
|
graph2dot -h
|
||||||
|
@end example
|
||||||
|
|
||||||
|
to see how to use @file{graph2dot}.
|
||||||
|
|
||||||
|
You can then pass the dot description to the @file{dot} program (from
|
||||||
|
the graphviz suite of programs) and obtain a graphical representation
|
||||||
|
of the filter graph.
|
||||||
|
|
||||||
|
For example the sequence of commands:
|
||||||
|
@example
|
||||||
|
echo @var{GRAPH_DESCRIPTION} | \
|
||||||
|
tools/graph2dot -o graph.tmp && \
|
||||||
|
dot -Tpng graph.tmp -o graph.png && \
|
||||||
|
display graph.png
|
||||||
|
@end example
|
||||||
|
|
||||||
|
can be used to create and display an image representing the graph
|
||||||
|
described by the @var{GRAPH_DESCRIPTION} string.
|
||||||
|
|
||||||
|
@chapter Available video filters
|
||||||
|
|
||||||
|
When you configure your FFmpeg build, you can disable any of the
|
||||||
|
existing video filters.
|
||||||
|
The configure output will show the video filters included in your
|
||||||
|
build.
|
||||||
|
|
||||||
|
Below is a description of the currently available video filters.
|
||||||
|
|
||||||
|
@section crop
|
||||||
|
|
||||||
|
Crop the input video to @var{x}:@var{y}:@var{width}:@var{height}.
|
||||||
|
|
||||||
|
@example
|
||||||
|
./ffmpeg -i in.avi -vfilters "crop=0:0:0:240" out.avi
|
||||||
|
@end example
|
||||||
|
|
||||||
|
@var{x} and @var{y} specify the position of the top-left corner of the
|
||||||
|
output (non-cropped) area.
|
||||||
|
|
||||||
|
The default value of @var{x} and @var{y} is 0.
|
||||||
|
|
||||||
|
The @var{width} and @var{height} parameters specify the width and height
|
||||||
|
of the output (non-cropped) area.
|
||||||
|
|
||||||
|
A value of 0 is interpreted as the maximum possible size contained in
|
||||||
|
the area delimited by the top-left corner at position x:y.
|
||||||
|
|
||||||
|
For example the parameters:
|
||||||
|
|
||||||
|
@example
|
||||||
|
"crop=100:100:0:0"
|
||||||
|
@end example
|
||||||
|
|
||||||
|
will delimit the rectangle with the top-left corner placed at position
|
||||||
|
100:100 and the right-bottom corner corresponding to the right-bottom
|
||||||
|
corner of the input image.
|
||||||
|
|
||||||
|
The default value of @var{width} and @var{height} is 0.
|
||||||
|
|
||||||
|
@section format
|
||||||
|
|
||||||
|
Convert the input video to one of the specified pixel formats.
|
||||||
|
Libavfilter will try to pick one that is supported for the input to
|
||||||
|
the next filter.
|
||||||
|
|
||||||
|
The filter accepts a list of pixel format names, separated by ``:'',
|
||||||
|
for example ``yuv420p:monow:rgb24''.
|
||||||
|
|
||||||
|
The following command:
|
||||||
|
|
||||||
|
@example
|
||||||
|
./ffmpeg -i in.avi -vfilters "format=yuv420p" out.avi
|
||||||
|
@end example
|
||||||
|
|
||||||
|
will convert the input video to the format ``yuv420p''.
|
||||||
|
|
||||||
|
@section noformat
|
||||||
|
|
||||||
|
Force libavfilter not to use any of the specified pixel formats for the
|
||||||
|
input to the next filter.
|
||||||
|
|
||||||
|
The filter accepts a list of pixel format names, separated by ``:'',
|
||||||
|
for example ``yuv420p:monow:rgb24''.
|
||||||
|
|
||||||
|
The following command:
|
||||||
|
|
||||||
|
@example
|
||||||
|
./ffmpeg -i in.avi -vfilters "noformat=yuv420p, vflip" out.avi
|
||||||
|
@end example
|
||||||
|
|
||||||
|
will make libavfilter use a format different from ``yuv420p'' for the
|
||||||
|
input to the vflip filter.
|
||||||
|
|
||||||
|
@section null
|
||||||
|
|
||||||
|
Pass the source unchanged to the output.
|
||||||
|
|
||||||
|
@section scale
|
||||||
|
|
||||||
|
Scale the input video to @var{width}:@var{height} and/or convert the image format.
|
||||||
|
|
||||||
|
For example the command:
|
||||||
|
|
||||||
|
@example
|
||||||
|
./ffmpeg -i in.avi -vfilters "scale=200:100" out.avi
|
||||||
|
@end example
|
||||||
|
|
||||||
|
will scale the input video to a size of 200x100.
|
||||||
|
|
||||||
|
If the input image format is different from the format requested by
|
||||||
|
the next filter, the scale filter will convert the input to the
|
||||||
|
requested format.
|
||||||
|
|
||||||
|
If the value for @var{width} or @var{height} is 0, the respective input
|
||||||
|
size is used for the output.
|
||||||
|
|
||||||
|
If the value for @var{width} or @var{height} is -1, the scale filter will
|
||||||
|
use, for the respective output size, a value that maintains the aspect
|
||||||
|
ratio of the input image.
|
||||||
|
|
||||||
|
The default value of @var{width} and @var{height} is 0.
|
||||||
|
|
||||||
|
@section slicify
|
||||||
|
|
||||||
|
Pass the images of input video on to next video filter as multiple
|
||||||
|
slices.
|
||||||
|
|
||||||
|
@example
|
||||||
|
./ffmpeg -i in.avi -vfilters "slicify=32" out.avi
|
||||||
|
@end example
|
||||||
|
|
||||||
|
The filter accepts the slice height as parameter. If the parameter is
|
||||||
|
not specified it will use the default value of 16.
|
||||||
|
|
||||||
|
Adding this in the beginning of filter chains should make filtering
|
||||||
|
faster due to better use of the memory cache.
|
||||||
|
|
||||||
|
@section unsharp
|
||||||
|
|
||||||
|
Sharpen or blur the input video. It accepts the following parameters:
|
||||||
|
|
||||||
|
@multitable @columnfractions .2 .5 .1 .1 .1
|
||||||
|
@headitem Name @tab Description @tab Min @tab Max @tab Default
|
||||||
|
@item @var{luma_msize_x}
|
||||||
|
@tab Luma matrix horizontal size
|
||||||
|
@tab 3
|
||||||
|
@tab 13
|
||||||
|
@tab 5
|
||||||
|
@item @var{luma_msize_y}
|
||||||
|
@tab Luma matrix vertical size
|
||||||
|
@tab 3
|
||||||
|
@tab 13
|
||||||
|
@tab 5
|
||||||
|
@item @var{luma_amount}
|
||||||
|
@tab Luma effect strength
|
||||||
|
@tab -2.0
|
||||||
|
@tab 5.0
|
||||||
|
@tab 1.0
|
||||||
|
@item @var{chroma_msize_x}
|
||||||
|
@tab Chroma matrix horizontal size
|
||||||
|
@tab 3
|
||||||
|
@tab 13
|
||||||
|
@tab 0
|
||||||
|
@item @var{chroma_msize_y}
|
||||||
|
@tab Chroma matrix vertical size
|
||||||
|
@tab 3
|
||||||
|
@tab 13
|
||||||
|
@tab 0
|
||||||
|
@item @var{chroma_amount}
|
||||||
|
@tab Chroma effect strength
|
||||||
|
@tab -2.0
|
||||||
|
@tab 5.0
|
||||||
|
@tab 0.0
|
||||||
|
@end multitable
|
||||||
|
|
||||||
|
Negative values for the amount will blur the input video, while positive
|
||||||
|
values will sharpen. All parameters are optional and default to the
|
||||||
|
equivalent of the string '5:5:1.0:0:0:0.0'.
|
||||||
|
|
||||||
|
@example
|
||||||
|
# Strong luma sharpen effect parameters
|
||||||
|
unsharp=7:7:2.5
|
||||||
|
|
||||||
|
# Strong blur of both luma and chroma parameters
|
||||||
|
unsharp=7:7:-2:7:7:-2
|
||||||
|
|
||||||
|
# Use the default values with @command{ffmpeg}
|
||||||
|
./ffmpeg -i in.avi -vfilters "unsharp" out.mp4
|
||||||
|
@end example
|
||||||
|
|
||||||
|
@section vflip
|
||||||
|
|
||||||
|
Flip the input video vertically.
|
||||||
|
|
||||||
|
@example
|
||||||
|
./ffmpeg -i in.avi -vfilters "vflip" out.avi
|
||||||
|
@end example
|
||||||
|
|
||||||
|
@chapter Available video sources
|
||||||
|
|
||||||
|
Below is a description of the currently available video sources.
|
||||||
|
|
||||||
|
@section nullsrc
|
||||||
|
|
||||||
|
Null video source, never return images. It is mainly useful as a
|
||||||
|
template and to be employed in analysis / debugging tools.
|
||||||
|
|
||||||
|
It accepts as optional parameter a string of the form
|
||||||
|
@var{width}:@var{height}, where @var{width} and @var{height} specify the size of
|
||||||
|
the configured source.
|
||||||
|
|
||||||
|
The default values of @var{width} and @var{height} are respectively 352
|
||||||
|
and 288 (corresponding to the CIF size format).
|
||||||
|
|
||||||
|
@chapter Available video sinks
|
||||||
|
|
||||||
|
Below is a description of the currently available video sinks.
|
||||||
|
|
||||||
|
@section nullsink
|
||||||
|
|
||||||
|
Null video sink, do absolutely nothing with the input video. It is
|
||||||
|
mainly useful as a template and to be employed in analysis / debugging
|
||||||
|
tools.
|
||||||
|
|
||||||
@bye
|
@bye
|
||||||
|
|||||||
@@ -1,48 +0,0 @@
|
|||||||
\input texinfo @c -*- texinfo -*-
|
|
||||||
|
|
||||||
@settitle Libavformat Documentation
|
|
||||||
@titlepage
|
|
||||||
@center @titlefont{Libavformat Documentation}
|
|
||||||
@end titlepage
|
|
||||||
|
|
||||||
@top
|
|
||||||
|
|
||||||
@contents
|
|
||||||
|
|
||||||
@chapter Description
|
|
||||||
@c man begin DESCRIPTION
|
|
||||||
|
|
||||||
The libavformat library provides a generic framework for multiplexing
|
|
||||||
and demultiplexing (muxing and demuxing) audio, video and subtitle
|
|
||||||
streams. It encompasses multiple muxers and demuxers for multimedia
|
|
||||||
container formats.
|
|
||||||
|
|
||||||
It also supports several input and output protocols to access a media
|
|
||||||
resource.
|
|
||||||
|
|
||||||
@c man end DESCRIPTION
|
|
||||||
|
|
||||||
@chapter See Also
|
|
||||||
|
|
||||||
@ifhtml
|
|
||||||
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
|
|
||||||
@url{ffmpeg-formats.html,ffmpeg-formats}, @url{ffmpeg-protocols.html,ffmpeg-protocols},
|
|
||||||
@url{libavutil.html,libavutil}, @url{libavcodec.html,libavcodec}
|
|
||||||
@end ifhtml
|
|
||||||
|
|
||||||
@ifnothtml
|
|
||||||
ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1),
|
|
||||||
ffmpeg-formats(1), ffmpeg-protocols(1),
|
|
||||||
libavutil(3), libavcodec(3)
|
|
||||||
@end ifnothtml
|
|
||||||
|
|
||||||
@include authors.texi
|
|
||||||
|
|
||||||
@ignore
|
|
||||||
|
|
||||||
@setfilename libavformat
|
|
||||||
@settitle multimedia muxing and demuxing library
|
|
||||||
|
|
||||||
@end ignore
|
|
||||||
|
|
||||||
@bye
|
|
||||||
Some files were not shown because too many files have changed in this diff Show More
Reference in New Issue
Block a user