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Paul B Mahol bdf01a9609 avfilter/vf_overlay: improve premultiplied alpha overlay for YUV 3 years ago
compat Replace all occurences of av_mallocz_array() by av_calloc() 3 years ago
doc avfilter/avf_showfreqs: add rate option 3 years ago
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fftools doc/ffprobe: clarify that the input file is not optional 3 years ago
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libavdevice avdevice/dshow: Fix dshow device name/description 3 years ago
libavfilter avfilter/vf_overlay: improve premultiplied alpha overlay for YUV 3 years ago
libavformat avformat/movenc: sidx earliest_presentation_time is applied after editlist 3 years ago
libavutil avutil/hwcontext_videotoolbox: create real buffer pool 3 years ago
libpostproc Keep including the full version.h when headers are included externally 3 years ago
libswresample swresample/rematrix: fix typo in clean_layout() 3 years ago
libswscale swscale: aarch64: Optimize the final summation in the hscale routine 3 years ago
presets presets: remove moldering iPod presets 11 years ago
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LICENSE.md avfilter/vf_geq: Relicense to LGPL 5 years ago
MAINTAINERS avformat/image2: add Jpeg XL as image2 format 3 years ago
Makefile Makefile: check config_components.h when comparing timestamps in component list files 3 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 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.