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FFmpeg git repo
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Aman Gupta 0f8e2a0b86 avcodec/omx: fix xFramerate calculation 
Integer overflow in the Q16 framerate calculation was sending
invalid values to the OMX encoder.

On the RPI4, this manifested as bitrate controls being ignored
on video streams with 60000/1001 framerates. Video streams with
30000/1001 framerates were not affected.

Signed-off-by: Aman Gupta <aman@tmm1.net>
(cherry picked from commit b022d9ba28)
2019-09-02 13:53:08 -07:00
compat
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fftools ffplay: properly detect all window size changes 2019-08-14 22:07:32 +02:00
libavcodec avcodec/omx: fix xFramerate calculation 2019-09-02 13:53:08 -07:00
libavdevice
libavfilter
libavformat avformat/avidec: add support for recognizing HEVC fourcc when demuxing 2019-09-02 22:06:00 +02:00
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configure configure: cuda_llvm: fix include path for MSYS2 2019-08-05 23:00:29 +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 a mean to alter decoded Audio and Video through chain of 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.