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Jun Zhao e6ac328b79
hwcontext_opencl: Remove the opencl_device_init in opencl_device_derive 		6 years ago
compat compat: remove in-tree NVidia headers 7 years ago
doc lavfi/atempo: raise max tempo limit (v2) 7 years ago
ffbuild Merge commit '17b6c7efb471e8ff1b8a7271f6531ba1d52bf69c' 7 years ago
fftools ffmpeg: make loglevel verbose for frame duration warning 6 years ago
libavcodec h264_slice: Fix return of incomplete frames from decoder 6 years ago
libavdevice avdevice/v4l2enc: add video4linux2 name alias 7 years ago
libavfilter lavfi/colorspace: Add namespace prefix to global functions 6 years ago
libavformat avformat/movenc: Use mov->fc consistently for av_log() 6 years ago
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libavutil hwcontext_opencl: Remove the opencl_device_init in opencl_device_derive 6 years ago
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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.