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Andreas Rheinhardt 0281e28c37 avformat/avformat: Move codecpar up in AVStream 
It is the most commonly used field and moving it to the start
e.g. allows to encode the offset in a pointer+offset addressing
mode on one byte on x86.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
2023-02-09 15:24:15 +01:00
compat compat/cuda: switch from powf to __powf intrinsic 2022-09-03 20:27:34 +02:00
doc fftools/ffmpeg: add an option for writing pre-muxing stats 2023-02-09 15:24:15 +01:00
ffbuild configure: probe RISC-V Vector extension 2022-09-27 13:19:52 +02:00
fftools fftools/ffmpeg: add an option for writing pre-muxing stats 2023-02-09 15:24:15 +01:00
libavcodec avcodec/h264_metadata_bsf: remove AUDs at any position 2023-02-09 14:38:28 +05:30
libavdevice avdevice/avfoundation: convert to new channel layout-API 2022-11-08 14:08:05 -03:00
libavfilter Revert "avfilter/af_pan: fix regression introduced with switch to new channel layout API" 2023-02-09 13:40:00 +01:00
libavformat avformat/avformat: Move codecpar up in AVStream 2023-02-09 15:24:15 +01:00
libavutil lavu/hwcontext_qsv: add support for UYVY 2023-02-07 09:51:37 +08:00
libpostproc postproc/postprocess_template: Fix alignment 2022-11-09 17:39:00 +01:00
libswresample x86: replace explicit REP_RETs with RETs 2023-02-01 04:23:55 +01:00
libswscale sws/utils.c: Do not uselessly call initFilter() when unscaling 2023-02-08 15:53:55 +01:00
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Changelog fftools/ffmpeg: add an option for writing pre-muxing stats 2023-02-09 15:24:15 +01:00
configure configure: make flite depend on threads 2023-02-09 12:45:53 +01:00
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MAINTAINERS lavc: deprecate CrystalHD decoders 2023-02-04 13:12:28 +01:00
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README.md
RELEASE RELEASE: update after 5.1 branch 2022-07-13 00:31:42 +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.