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FFmpeg git repo
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Rémi Denis-Courmont 64ab577954 lavc/alacdsp: RISC-V V decorrelate_stereo 
To avoid data dependencies, this does the following unroll, which
requires one extra but probably free addition:

    coeff = (b * left_weight) >> decorr_shift;
    b += a;
    a -= coeff;
    b -= coeff;
    swap(a, b);
 		2022-10-05 06:51:11 +02:00
compat
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doc lavfi/avf_showspatial: add framerate option 2022-10-04 11:55:03 +02:00
ffbuild configure: probe RISC-V Vector extension 2022-09-27 13:19:52 +02:00
fftools fftools/ffmpeg: move some code from init_output_stream() to init_output_stream_encode() 2022-10-04 11:55:03 +02:00
libavcodec lavc/alacdsp: RISC-V V decorrelate_stereo 2022-10-05 06:51:11 +02:00
libavdevice avformat/internal: Don't include avcodec.h 2022-09-26 03:02:50 +02:00
libavfilter lavfi/avf_showspatial: add framerate option 2022-10-04 11:55:03 +02:00
libavformat avformat/vividas: Check packet size 2022-10-04 23:47:54 +02:00
libavutil lavu/fixed_dsp: add missing av_restrict qualifiers 2022-10-04 10:56:12 +02:00
libpostproc
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libswresample swsresample/swresample: error out on invalid layouts 2022-09-14 09:52:33 -03:00
libswscale sws/rgb2rgb: RISC-V 64-bit V packed YUYV/UYVY to planar 4:2:2 2022-09-30 07:25:44 +02:00
presets
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tests tests/fate/truehd: Add test for shortened Ticket1726 testcase 2022-10-04 23:47:53 +02:00
tools tools/target_dec_fuzzer: Adjust threshold for Jpeg2000 2022-09-16 21:30:59 +02:00
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.travis.yml
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CONTRIBUTING.md
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COPYING.GPLv2
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CREDITS
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Changelog avcodec: add a bsf to reorder DTS into PTS 2022-10-04 08:40:16 -03:00
INSTALL.md
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LICENSE.md
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MAINTAINERS MAINTAINERS: remove the project leader section 2022-09-23 16:06:11 +02:00
Makefile configure: probe RISC-V Vector extension 2022-09-27 13:19:52 +02:00
README.md
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RELEASE
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configure configure, avcodec/Makefile: Remove obsolete mpegvideo dependencies 2022-10-04 17:41:34 +02:00

README.md

FFmpeg README

FFmpeg 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 means to alter decoded audio and video through a directed graph of connected filters.
  • libavdevice provides an abstraction to access capture and playback devices.
  • libswresample implements audio mixing and resampling routines.
  • libswscale implements 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, 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

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.