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Andreas Rheinhardt e2646e23be
swscale/utils: Fix invalid left shifts of negative numbers 		5 years ago
compat compat/cuda: Change inclusion guards 5 years ago
doc doc/ffmpeg: -timelimit is in user time 5 years ago
ffbuild build: add support for building CUDA files with clang 5 years ago
fftools ffmpeg_opt: remove errant space 5 years ago
libavcodec avcodec/ffv1enc: Fix out-of-bounds-array access 5 years ago
libavdevice libavdevice: Update the class name as uniform style 5 years ago
libavfilter avfilter/vf_scale: cosmetics 5 years ago
libavformat libavformat/rtsp: return error if rtsp_hd_out is null instead of crash 5 years ago
libavresample avresample: remove deprecated attribute from the AVAudioResampleContext struct 7 years ago
libavutil lavu/qsv: remove redundant version query 5 years ago
libpostproc Bump minor versions again on master to keep 4.2 versions separate from master 6 years ago
libswresample swresample/audioconvert: fix invalid left shift for 64bit sample format 5 years ago
libswscale swscale/utils: Fix invalid left shifts of negative numbers 5 years ago
presets presets: remove moldering iPod presets 11 years ago
tests fate: update hashes after ya16 change 5 years ago
tools tools/target_dec_fuzzer: Print samples decoded like pixels 5 years ago
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CONTRIBUTING.md Add CONTRIBUTING.md 8 years ago
COPYING.GPLv2 Rename COPYING.GPL --> COPYING.GPLv2 and COPYING.LGPL --> COPYING.LGPLv2.1. 16 years ago
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Changelog avfilter: add sierpinski video source 5 years ago
INSTALL.md INSTALL.md: Fix Markdown formatting 6 years ago
LICENSE.md LICENSE: Add missing libraries that need --enable-version3. 5 years ago
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RELEASE RELEASE: Update value for post 4.2 branch 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.