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Anton Khirnov e10a5b91bc lavc/av1*: fix exporting framerate 
* take num_ticks_per_picture_minus_1 into account, since that is a part
  of the framerate computation
* stop exporting num_ticks_per_picture_minus_1 into
  AVCodecContext.ticks_per_frame, as that field is used for other
  purposes (in conjunction with repeat_pict, which is not used at all by
  av1)
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doc lavc: deprecate AVCodecContext.ticks_per_frame 2023-05-15 10:56:18 +02:00
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libavcodec lavc/av1*: fix exporting framerate 2023-05-15 14:17:49 +02:00
libavdevice avfilter/ccfifo: remove unnecessary context allocations 2023-05-12 16:21:18 -03:00
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INSTALL.md INSTALL.md: Fix Markdown formatting 2019-01-31 10:29:16 -09:00
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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.