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Shiz b197f78329 configure: Silence error messages when probing compiler 
On Xcode's clang on OS X, $cc --version will output a 'Configured with:'
line to stderr, which clobbers the configure script output. As this line
serves no further purpose, it should be silenced.

The same applies to apple-gcc 4.2.1, which complains that it can not
understand the kernel version it is running on.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
2015-08-04 12:19:27 +02:00
compat
use a wrapper script to call MS link.exe to avoid mixing with /usr/bin/link.exe
2015-07-24 18:21:22 +03:00
doc
des: add av_des_alloc()
2015-07-31 09:04:12 +02:00
libavcodec
png: Be more informative regarding signature errors
2015-08-02 14:31:09 +02:00
libavdevice
lavc: Consistently prefix input buffer defines
2015-07-27 15:24:59 +01:00
libavfilter
drawtext: Move the strftime expansion in a separate function
2015-08-02 15:18:48 +02:00
libavformat
asfdec: prevent the memory leak while reading metadata
2015-08-02 08:43:51 +02:00
libavresample
x86: check for AV_CPU_FLAG_AVXSLOW where useful
2015-05-31 12:07:11 +02:00
libavutil
des: extend av_des_init() doxy
2015-07-31 09:04:12 +02:00
libswscale
ppc: Restrict some Altivec implementations to Big Endian
2015-05-31 12:07:11 +02:00
presets
presets: spelling error in libvpx 1080p50_60
2011-10-22 00:28:56 +02:00
tests
fate/mp3: use the f32le format as output
2015-07-31 07:11:35 +02:00
tools
cws2fws: Close file handles on error
2015-06-12 17:02:49 +01:00
.gitattributes
Treat all '*.pnm' files as non-text file
2014-11-28 17:52:43 -05:00
.gitignore
Checkasm: assembly testing and benchmarking tool
2015-07-12 16:39:07 +02:00
arch.mak
ppc: vsx: Implement float_dsp
2015-05-31 12:07:11 +02:00
avconv_dxva2.c
avconv_dxva2: add hevc support
2015-01-27 09:06:05 +01:00
avconv_filter.c
avconv: split creating and (re-)configuring complex filtergraphs
2015-07-19 09:38:53 +02:00
avconv_opt.c
lavc: AV-prefix all codec flags
2015-07-27 15:24:58 +01:00
avconv_vda.c
avconv: vda: Unlock the pixel buffer once it is accessed
2015-07-09 00:10:13 +02:00
avconv_vdpau.c
avconv_vdpau: allocate video surface of VDPAU-specified size
2014-12-25 20:47:49 +01:00
avconv.c
lavc: Consistently prefix input buffer defines
2015-07-27 15:24:59 +01:00
avconv.h
Add a quality factor packet side data
2015-07-20 15:06:47 +01:00
avplay.c
lavc: AV-prefix all codec capabilities
2015-07-27 15:24:58 +01:00
avprobe.c
avprobe: Print the display matrix from per-stream sidedata
2015-05-02 22:09:09 +03:00
Changelog
lavc: add Intel libmfx-based HEVC decoder.
2015-07-25 17:37:01 +02:00
cmdutils_common_opts.h
avplay: Accept cpuflags option
2013-10-22 10:49:31 +02:00
cmdutils.c
lavc: AV-prefix all codec capabilities
2015-07-27 15:24:58 +01:00
cmdutils.h
avconv: use read_file() for reading the 2pass stats
2015-07-19 09:37:11 +02:00
common.mak
checkasm: Always link statically
2015-07-21 23:22:42 +02:00
configure
configure: Silence error messages when probing compiler
2015-08-04 12:19:27 +02:00
COPYING.GPLv2
…
COPYING.GPLv3
Add configure option to upgrade (L)GPL to version 3.
2009-06-05 11:04:03 +00:00
COPYING.LGPLv2.1
cosmetics: Delete empty lines at end of file.
2012-02-09 12:26:45 +01:00
COPYING.LGPLv3
Add configure option to upgrade (L)GPL to version 3.
2009-06-05 11:04:03 +00:00
CREDITS
partially rename FFmpeg to Libav
2011-03-16 21:54:39 +01:00
INSTALL
doc: clarify configure features
2011-04-07 02:54:12 +02:00
library.mak
build: Support executable only ldflags
2014-07-21 22:18:35 +02:00
LICENSE
license: Mention that vf_interlace is GPL, not LGPL
2014-08-28 19:47:43 +02:00
Makefile
checkasm: Always link statically
2015-07-21 23:22:42 +02:00
README
doc: Add more information in the README
2014-08-16 00:49:22 +02:00
README.md
doc: Add more information in the README
2014-08-16 00:49:22 +02:00
RELEASE
Make the RELEASE file match with the most recent tag
2014-12-01 07:51:14 -05:00
version.sh
Drop git- prefix from version labels
2011-06-19 19:41:23 +01:00

README.md

Libav

Libav is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.

Libraries

  • libavcodec provides implementation of a wider range of codecs.
  • libavformat implements streaming protocols, container formats and basic I/O access.
  • libavutil includes hashers, decompressors and miscellaneous utility functions.
  • libavfilter provides a mean to alter decoded Audio and Video through chain of filters.
  • libavdevice provides an abstraction to access capture and playback devices.
  • libavresample implements audio mixing and resampling routines.
  • libswscale implements color conversion and scaling routines.

Tools

  • avconv is a command line toolbox to manipulate, convert and stream multimedia content.
  • avplay is a minimalistic multimedia player.
  • avprobe is a simple analisys tool to inspect multimedia content.
  • Additional small tools such as aviocat, ismindex and qt-faststart.

Documentation

The offline documentation is available in the doc/ directory.

The online documentation is available in the main website and in the wiki.

Examples

Conding examples are available in the doc/example directory.

License

Libav codebase is mainly LGPL-licensed with optional components licensed under GPL. Please refer to the LICENSE file for detailed information.

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