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Pull request Compare This branch is 60 commits behind FFmpeg:master.
Latest commit 3aca16e Jul 20, 2017 @atomnuker atomnuker opus_rc: fix CDF encoding of zeroes
0th CDF value is where probabilities are.

Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
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compat compat/cuda: make cuvidGetDecoderCaps optional Jun 1, 2017
doc avfilter/af_astats: measure dynamic range Jul 19, 2017
ffbuild build: Allow generating dependencies as a side-effect of assembling Jun 21, 2017
libavcodec opus_rc: fix CDF encoding of zeroes Jul 20, 2017
libavdevice avdevice: make ff_reverse available on shared builds Jul 20, 2017
libavfilter avfilter/af_astats: measure dynamic range Jul 19, 2017
libavresample build: Generalize yasm/nasm-related variable names Jun 21, 2017
libavutil avutil: merge slice threading implementation from avcodec and avfilter Jul 19, 2017
libpostproc Merge commit '92db5083077a8b0f8e1050507671b456fd155125' May 4, 2017
libswresample libswresample: check input to swr_convert_frame for NULL Jul 8, 2017
libswscale build: Generalize yasm/nasm-related variable names Jun 21, 2017
tests fate: add libavdevice/reverse.c to fate-source Jul 20, 2017
.gitattributes fate: add SCC test Jan 27, 2017
.gitignore build: add support for building .cu files via nvcc May 15, 2017
.travis.yml build: Prefer NASM assembler over YASM Jun 21, 2017
COPYING.GPLv3 Add configure option to upgrade (L)GPL to version 3. Jun 5, 2009
COPYING.LGPLv2.1 cosmetics: Delete empty lines at end of file. Feb 9, 2012
CREDITS CREDITS: redirect to Git log, remove current outdated content Jan 31, 2013
Changelog avformat: add SMPTE 337M demuxer Jul 19, 2017
INSTALL.md INSTALL: add markdown syntax May 28, 2014
LICENSE.md Merge commit '4fef648d10bf3bcfd4b8fa5755c1128966a2427c' Mar 15, 2017
MAINTAINERS MAINTAINERS: Add Manojkumar Bhosale for MIPS, remove myself. Jun 7, 2017
Makefile dxva: add support for new dxva2 and d3d11 hwaccel APIs Jun 27, 2017
README.md Add CONTRIBUTING.md Sep 18, 2016
RELEASE Bump minor versions for master after release/3.3 branchpoint Mar 31, 2017
cmdutils.c avformat, ffmpeg: deprecate old rotation API Mar 27, 2017
cmdutils.h Merge commit '122de16dd8108a59a55d30543c9f28b5f61b02d1' May 5, 2017
cmdutils_opencl.c cmdutils_opencl: Fix read of uinitialized cl_mem May 11, 2017
configure avcodec: add Dolby E decoder Jul 19, 2017
ffmpeg.c ffmpeg: Fix typos in the comment for decode() ("." vs. "->") Jul 7, 2017
ffmpeg.h dxva: add support for new dxva2 and d3d11 hwaccel APIs Jun 27, 2017
ffmpeg_cuvid.c ffmpeg_cuvid: adapt for recent filter graph initialization changes Mar 3, 2017
ffmpeg_filter.c ffmpeg: Support setting the hardware device to use when filtering Jun 14, 2017
ffmpeg_hw.c avconv_hw: Free device on initialisation failure Jun 18, 2017
ffmpeg_opt.c ffmpeg: reindent after previous commit Jul 18, 2017
ffmpeg_qsv.c ffmpeg: init filtergraphs only after we have a frame on each input Mar 3, 2017
ffmpeg_videotoolbox.c ffmpeg_videotoolbox: fix usage of av_get_codec_tag_string() Mar 29, 2017
ffplay.c ffplay: reindent after previous commit Jul 18, 2017
ffprobe.c ffprobe: reindent after previous commit Jul 18, 2017
ffserver_config.c ffserver_config: Check for failure to allocate FFServerIPAddressACL Dec 22, 2016
ffserver_config.h ffsrever: Make the status page bitexact if any stream is bitexact Nov 29, 2016



FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.


  • 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.


  • 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.
  • ffserver is a multimedia streaming server for live broadcasts.
  • Additional small tools such as aviocat, ismindex and qt-faststart.


The offline documentation is available in the doc/ directory.

The online documentation is available in the main website and in the wiki.


Coding examples are available in the doc/examples directory.


FFmpeg codebase is mainly LGPL-licensed with optional components licensed under GPL. Please refer to the LICENSE file for detailed information.


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.