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Marvin Scholz 1fa7554bd6 avutil/hwcontext_videotoolbox: Unset undefined values 
When mapping AVFrame properties to the CVBuffer attachments, it is
necessary to properly delete undefined attachments, else we can
leave incorrect values in there guessed from VideoToolbox for
example, leading to inconsistent results where the AVFrame and
CVBuffer differ in metadata.

Ref #10884

Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
2024-07-05 19:13:43 +08:00
compat avutil/common: Don't auto-include mem.h 2024-03-31 00:08:43 +01:00
doc doc/filter: fix grammar in tiltandshift filter 2024-07-04 15:21:17 +05:30
ffbuild riscv: add Zvbb vector bit manipulation extension 2024-05-11 11:38:49 +03:00
fftools fftools/ffmpeg_opt: add missing codec type to some options 2024-07-03 08:26:44 -03:00
libavcodec lavc/libx264: minor format fix 2024-07-05 18:05:10 +08:00
libavdevice avdevice/v4l2: add limited support for multiplanar API 2024-07-04 11:09:53 +02:00
libavfilter lavf/scdet: minor fix 2024-07-05 18:06:14 +08:00
libavformat avformat/dump: only print yaw, pitch, and roll if set 2024-07-04 23:35:08 -03:00
libavutil avutil/hwcontext_videotoolbox: Unset undefined values 2024-07-05 19:13:43 +08:00
libpostproc avutil/common: Don't auto-include mem.h 2024-03-31 00:08:43 +01:00
libswresample swresample/swresample: Rectify invalid function in the documentation 2024-07-02 21:57:17 +02:00
libswscale swscale/aarch64: Add argb/abgr to yuv 2024-07-05 16:32:31 +08:00
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tests tests: Add a missing dependency for the filter-atempo test 2024-07-04 23:03:20 +03:00
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Changelog Changelog: add D3D12VA HEVC encoder changelog 2024-07-02 14:15:12 +02:00
configure avcodec: add D3D12VA hardware HEVC encoder 2024-07-02 14:15:12 +02:00
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README.md
RELEASE RELEASE: update after 7.0 branch 2024-04-02 13:02:39 -03:00

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.