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tests/checkasm/checkasm: C LSX LASX put_hevc_pel_uni_w_pixels4_8_c: 2.7 1.0 put_hevc_pel_uni_w_pixels6_8_c: 6.2 2.0 1.5 put_hevc_pel_uni_w_pixels8_8_c: 10.7 2.5 1.7 put_hevc_pel_uni_w_pixels12_8_c: 23.0 5.5 5.0 put_hevc_pel_uni_w_pixels16_8_c: 41.0 8.2 5.0 put_hevc_pel_uni_w_pixels24_8_c: 91.0 19.7 13.2 put_hevc_pel_uni_w_pixels32_8_c: 161.7 32.5 16.2 put_hevc_pel_uni_w_pixels48_8_c: 354.5 73.7 43.0 put_hevc_pel_uni_w_pixels64_8_c: 641.5 130.0 64.2 Speedup of decoding H265 4K 30FPS 30Mbps on 3A6000 with 8 threads is 1fps(47fps-->48fps). Reviewed-by: yinshiyou-hf@loongson.cn Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
FFmpeg README
FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.
Libraries
libavcodecprovides implementation of a wider range of codecs.libavformatimplements streaming protocols, container formats and basic I/O access.libavutilincludes hashers, decompressors and miscellaneous utility functions.libavfilterprovides means to alter decoded audio and video through a directed graph of connected filters.libavdeviceprovides an abstraction to access capture and playback devices.libswresampleimplements audio mixing and resampling routines.libswscaleimplements color conversion and scaling routines.
Tools
- ffmpeg is a command line toolbox to manipulate, convert and stream multimedia content.
- ffplay is a minimalistic multimedia player.
- ffprobe is a simple analysis tool to inspect multimedia content.
- Additional small tools such as
aviocat,ismindexandqt-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
Coding examples are available in the doc/examples directory.
License
FFmpeg codebase is mainly LGPL-licensed with optional components licensed under GPL. Please refer to the LICENSE file for detailed information.
Contributing
Patches should be submitted to the ffmpeg-devel mailing list using
git format-patch or git send-email. Github pull requests should be
avoided because they are not part of our review process and will be ignored.