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oggdec: verify page checksum 
This makes decoding far more robust, since OggS, the ogg magic,
can be commonly found randomly in streams, which previously made
the demuxer think there's a new stream or a change in such.
2020-04-30 23:05:48 +01:00
compat compat/avisynth: remove avisynth headers 2020-04-05 01:17:55 +02:00
doc avfilter/af_crossfeed: make options runtime configurable 2020-04-30 12:18:36 +02:00
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fftools ffmpeg: Remove the hw_device_ctx global 2020-04-26 18:38:25 +01:00
libavcodec avcodec/cbs_h265: fix writing extension_data bits 2020-04-30 16:28:01 -03:00
libavdevice avfoundation: Fix building on iOS 2020-04-30 14:21:47 +02:00
libavfilter avfilter/af_crossfeed: make options runtime configurable 2020-04-30 12:18:36 +02:00
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libavresample
libavutil lavu/version: bump minor version for DOVI sidedata 2020-04-25 09:40:52 +08:00
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tools tools: fix const specifier for AVInputFormat 2020-04-30 10:25:32 +01:00
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README.md
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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.