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compat Add a compat dummy stdatomic.h used when threading is disabled Oct 2, 2016
doc Add GBRP12 pixel format support Oct 12, 2016
libavcodec lavc: bsf: Document input/output codecparam alloc/init process Oct 12, 2016
libavdevice v4l2: convert to stdatomic Oct 2, 2016
libavfilter vf_scale_vaapi: Crop input surface to active region Sep 14, 2016
libavformat avidec: Set palette alpha as fully opaque Oct 2, 2016
libavresample build: Change structure of the linker version script templates May 29, 2016
libavutil Add GBRP12 pixel format support Oct 12, 2016
libswscale swscale: Enable GBRP12 output Oct 12, 2016
presets presets: spelling error in libvpx 1080p50_60 Oct 21, 2011
tests swscale: Enable GBRP12 output Oct 12, 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
.travis.yml travis: Use a better compiler Oct 12, 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 Changelog: mark the release 12 branch Aug 31, 2016
INSTALL doc: clarify configure features Apr 7, 2011
LICENSE Remove the legacy X11 screen grabber Jul 29, 2016
Makefile build: Simplify postprocessing of linker version script files May 29, 2016
README doc: Add more information in the README Aug 15, 2014 doc: Add travis badge Sep 13, 2015
RELEASE Prepare for 12_alpha1 Release Aug 12, 2016
arch.mak ppc: vsx: Implement float_dsp May 31, 2015
avconv.c avconv: only retry decoding on actual decoding errors Oct 2, 2016
avconv.h avconv: stop using setpts for input framerate forced with -r Jul 22, 2016
avconv_dxva2.c avconv_dxva2: add a profile check for hevc Jul 20, 2016
avconv_filter.c avconv: make sure the filtergraph is freed on init failure Oct 2, 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: Convert to use hw_frames_ctx only Aug 30, 2016
avconv_vda.c avconv: vda: Unlock the pixel buffer once it is accessed Jul 8, 2015
avconv_vdpau.c avconv_vdpau: use the hwcontext device creation API May 26, 2016
avplay.c Use AVFrame.pts instead of deprecated pkt_pts. Jun 21, 2016
avprobe.c avprobe: Fix memory leak Aug 29, 2016
cmdutils.c avconv: switch to the new BSF API Mar 20, 2016
cmdutils.h avconv: use read_file() for reading the 2pass stats Jul 19, 2015
cmdutils_common_opts.h avplay: Accept cpuflags option Oct 22, 2013
common.mak build: Simplify postprocessing of linker version script files May 29, 2016
configure configure: #include stdint.h as part of libxavs test Oct 6, 2016
library.mak build: Simplify postprocessing of linker version script files May 29, 2016 build: remove hardcoded name of version header Sep 15, 2016


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.