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Niklas Haas ecea6ed3c9 avcodec/dovi_rpuenc: implement DM metadata compression 
This implements limited metadata compression. To be a bit more lenient,
we try and re-order the static extension blocks when testing for an
exact match.

For sanity, and to avoid producing bitstreams we couldn't ourselves
decode, we don't accept partial matches - if some extension blocks
change while others remain static, compression is disabled for the
entire frame.

This shouldn't be an issue in practice because static extension blocks
are stated to remain constant throughout the entire sequence.
2024-08-16 11:48:02 +02:00
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doc avcodec/bsf/dovi_rpu: add new bitstream filter 2024-08-16 11:48:02 +02:00
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fftools fftools/ffmpeg: show video stats in progress output without filters 2024-08-14 15:17:58 +02:00
libavcodec avcodec/dovi_rpuenc: implement DM metadata compression 2024-08-16 11:48:02 +02:00
libavdevice libavdevice/gdigrab: change hwnd tail check fail logic to !=null 2024-08-15 20:10:33 +08:00
libavfilter avfilter/vf_zscale: remove unused fields 2024-08-16 11:43:37 +02:00
libavformat avformat/iamf_parse: ignore Audio Elements with an unsupported type 2024-08-14 23:55:40 -03:00
libavutil avutil/dovi_meta: document static vs dynamic ext blocks 2024-08-16 11:48:02 +02:00
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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.