collection of Libav topic branches
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Pull request Compare This branch is 4 commits ahead, 145 commits behind libav:master.
Latest commit 97f5e43 Aug 3, 2016 @lu-zero avconv: Make sure that inputless filtergraphs are configured
Unbreak `avconv -filter_complex testsrc`.

Regression introduced in a3a0230
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compat jack: Support OSX Mar 31, 2016
doc x86: Add SSSE3_SLOW CPU flag and related convenience macros Jul 20, 2016
libavcodec av1: Add libaom decoding support Aug 1, 2016
libavdevice x11grab: Rename internal component to "xcbgrab" Jul 29, 2016
libavformat av1: Add codec_id and basic demuxing support Aug 1, 2016
libavresample build: Change structure of the linker version script templates May 29, 2016
libswscale swscale: Add proper ff_ prefix to init functions Jul 16, 2016
presets presets: spelling error in libvpx 1080p50_60 Oct 21, 2011
tests checkasm: Cast unsigned to signed Jul 23, 2016
tools tools: Port to codec parameters API May 17, 2016
.gitattributes Treat all '*.pnm' files as non-text file Nov 28, 2014
.gitignore build: Ignore generated mapfile and remove it on distclean May 27, 2016
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
COPYING.LGPLv3 Add configure option to upgrade (L)GPL to version 3. Jun 5, 2009
CREDITS partially rename FFmpeg to Libav Mar 16, 2011
Changelog Remove the legacy X11 screen grabber Jul 29, 2016
LICENSE Remove the legacy X11 screen grabber Jul 29, 2016
README doc: Add more information in the README Aug 15, 2014 doc: Add travis badge Sep 13, 2015
RELEASE Make the RELEASE file match with the most recent tag Dec 1, 2014
arch.mak ppc: vsx: Implement float_dsp May 31, 2015
avconv.c avconv: Make sure that inputless filtergraphs are configured Aug 3, 2016
avconv_dxva2.c avconv_dxva2: add a profile check for hevc Jul 20, 2016
avconv_filter.c avconv: Check the fifo allocation Aug 1, 2016
avconv_opt.c avconv: init filtergraphs only after we have a frame on each input Jun 25, 2016
avconv_qsv.c avconv_qsv: use the actual pixel format provided by lavc Jul 22, 2016
avconv_vaapi.c avconv_vaapi: use the hwcontext device creation API May 26, 2016
avconv_vda.c avconv: vda: Unlock the pixel buffer once it is accessed Jul 8, 2015
avplay.c Use AVFrame.pts instead of deprecated pkt_pts. Jun 21, 2016
avprobe.c Revert "avprobe: Zero the allocated avio buffer memory" Jul 21, 2016
cmdutils.c avconv: switch to the new BSF API Mar 20, 2016
common.mak build: Simplify postprocessing of linker version script files May 29, 2016
configure av1: Add libaom decoding support Aug 1, 2016
library.mak Drop git- prefix from version labels Jun 19, 2011


Build Status

Libav 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.
  • libavresample implements audio mixing and resampling routines.
  • libswscale implements color conversion and scaling routines.


  • avconv is a command line toolbox to manipulate, convert and stream multimedia content.
  • avplay is a minimalistic multimedia player.
  • avprobe is a simple analisys tool to inspect multimedia content.
  • 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.


Conding examples are available in the doc/example directory.


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