Niklas Haas 848753352d swscale/ops_dispatch: substantially refactor subpass compilation
Instead of a loop with fixed structure, this function now recursively calls
itself as many times as needed to satisfy all criteria.

This is absolutely needed for the upcoming refactor which will allow for
also splitting apart ops lists as needed to e.g. handle partially subsampled
ops lists, which may need a complex sequence of filtering and merge steps
to be fully satisfied.

This does modify the way in which subpasses are compiled slightly, in that
each new subpass first tried again un-split, rather than a single split
resulting in all subsequent passes being split as well. This is mostly a
benign change, though it might matter one day.

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Niklas Haas <git@haasn.dev>
2026-06-23 11:48:13 +00:00
2025-08-08 21:51:15 +00:00
2025-06-23 14:48:40 +02:00
2025-05-07 15:35:47 +02:00
2025-08-14 08:42:29 -04:00

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.

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