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Philip Langdale 6ab8a9d375 lavu/pixfmt: Add packed 4:4:4 format 
The "AYUV" format is defined by Microsoft as their preferred format for
4:4:4 content, and so it is the format used by Intel VAAPI and QSV.

As Microsoft like to define their byte ordering in little-endian
fashion, the memory order is reversed, and so our pix_fmt, which
follows memory order, has a reversed name (VUYA).
2022-08-03 14:09:46 -07:00
compat avfilter: add chromakey_cuda filter 2022-07-10 17:20:15 +02:00
doc lavu/pixfmt: Add packed 4:4:4 format 2022-08-03 14:09:46 -07:00
ffbuild ffbuild/common: Fix CPPFLAGS applied for compiling C++ files 2022-05-24 21:30:52 +02:00
fftools ffmpeg_opt: consider HW acceleration method when selecting decoder 2022-08-03 11:10:57 +08:00
libavcodec avcodec/intrax8: Avoid indirection when accessing VLC table 2022-08-03 21:23:35 +02:00
libavdevice avdevice/v4l2: fix leak of timefilter 2022-08-03 17:52:25 +08:00
libavfilter avfilter/vf_cropdetect: Remove set-but-unused variable 2022-07-30 22:14:26 +02:00
libavformat configure: Add msmpeg4(dec|enc) subsystems 2022-08-03 21:18:25 +02:00
libavutil lavu/pixfmt: Add packed 4:4:4 format 2022-08-03 14:09:46 -07:00
libpostproc Bump versions after 5.1 branch 2022-07-13 00:29:05 +02:00
libswresample Bump versions after 5.1 branch 2022-07-13 00:29:05 +02:00
libswscale swscale/rgb2rgb: Don't cast const away 2022-07-31 01:09:52 +02:00
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tests lavu/pixfmt: Add packed 4:4:4 format 2022-08-03 14:09:46 -07:00
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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.