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avbuild build: Add version numbers to "Requires" entries in pkg-config files Dec 28, 2016
compat compat/atomics: add typecasts in atomic_compare_exchange_strong() Dec 8, 2016
doc lavc: deprecate refcounted_frames field Feb 1, 2017
libavcodec utvideodec: Add a missing include Feb 10, 2017
libavdevice build: Generate pkg-config files from Make and not from configure Dec 22, 2016
libavfilter try: disable threading in avfilter Feb 10, 2017
libavformat hlsenc: Correctly write down all 16 bytes in hex Feb 10, 2017
libavresample Mark some arrays that never change as const. Feb 1, 2017
libavutil asm: Consistently uppercase SECTION markers Feb 3, 2017
libswscale swscale-test: const correctness for pointer variable Jan 24, 2017
presets presets: spelling error in libvpx 1080p50_60 Oct 21, 2011
tests fate: Skip the checkasm test if CONFIG_STATIC is disabled Jan 9, 2017
tools build: Move entries related to building TOOLS to a subdirectory Makefile Dec 7, 2016
.gitattributes Treat all '*.pnm' files as non-text file Nov 28, 2014
.gitignore build: Ignore generated .version files Feb 3, 2017
.travis.yml travis: Enable OSX integration Nov 17, 2015
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 vaapi_encode: Add VP8 support Jan 30, 2017
INSTALL doc: clarify configure features Apr 7, 2011
LICENSE Remove the legacy X11 screen grabber Jul 29, 2016
Makefile Replace cmdutils_common_opts.h by a macro Jan 12, 2017
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 Oct 14, 2016
avconv.c avconv: allow -b to be used with streamcopy Feb 1, 2017
avconv.h avconv: allow -b to be used with streamcopy Feb 1, 2017
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: allow -b to be used with streamcopy Feb 1, 2017
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 Replace cmdutils_common_opts.h by a macro Jan 12, 2017
avprobe.c Replace cmdutils_common_opts.h by a macro Jan 12, 2017
cmdutils.c cmdutils: update copyright year to 2017 Jan 1, 2017
cmdutils.h Replace cmdutils_common_opts.h by a macro Jan 12, 2017
configure configure: Correctly recurse in do_check_deps() Feb 8, 2017


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.