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Clément Bœsch 31c5f26a46 avfilter/palette{gen,use}: add palette utils
These color management helpers will be shared by palettegen and
paletteuse in the following commits.

Note that it probably makes sense to share at least the sRGB/linear
functions with other filters at some point.

More information on OkLab can be found here: https://bottosson.github.io/posts/oklab/

For the arithmetic integer version, see:
http://blog.pkh.me/p/38-porting-oklab-colorspace-to-integer-arithmetic.html
and https://github.com/ubitux/oklab-int
2023-01-03 17:18:55 +01:00
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doc avfilter/palette{gen,use}: revert support palettes with alpha 2023-01-03 17:18:55 +01:00
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libavformat avformat/bonk: add support for ID3 metadata 2023-01-02 19:54:56 +01:00
libavutil avutil/tx_template: Use more unsigned ints to avoid undefined overflows 2022-12-25 19:33:24 +01:00
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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.