Lynne 26586c898f avcodec/psymodel: add pair-synced window switching hook and pair state
Divergent block switching between the two channels of a CPE disables
common_window, and with it every joint stereo tool, on exactly the
frames that need them most; the lone short channel then codes its
transient alone, which is audible as one-channel garble at beats.

Add an optional window_pair() model hook so a psy model can decide both
channels of a pair together, and encoder-fed per-pair state: the
joint-tool candidacy fraction EMA and a Schmitt-gated decouple flag,
letting the model fall back to independent per-channel switching on
content whose joint tools are dead (diffuse, decorrelated pairs) where
forcing a common grid only costs quality.
2026-07-19 20:41:48 +08:00
2026-07-13 18:16:18 +00:00
2026-06-23 17:15:02 +02:00

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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