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Latest commit 1162321 Nov 10, 2016 @mstorsjo arm: vp9mc: Use a different helper register for PIC loads
This fixes crashes since 557c167 in linux PIC builds.

Previously, movrelx silently used r12 as helper register, which
doesn't work when r12 is the destination register.

Signed-off-by: Martin Storsjö <martin@martin.st>
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compat Add a compat dummy stdatomic.h used when threading is disabled Oct 2, 2016
doc examples/decode_audio: Add missing header for av_free() Nov 10, 2016
libavcodec arm: vp9mc: Use a different helper register for PIC loads Nov 10, 2016
libavdevice Use avpriv_report_missing_feature() where appropriate Nov 8, 2016
libavfilter lavfi: Hardware map filter Nov 3, 2016
libavformat matroskaenc: write updated STREAMINFO metadata for FLAC streams if av… Nov 10, 2016
libavresample build: Change structure of the linker version script templates May 29, 2016
libavutil arm: Clear the gp register alias at the end of functions Nov 10, 2016
libswscale swscale: Add GRAY12 Nov 7, 2016
presets presets: spelling error in libvpx 1080p50_60 Oct 21, 2011
tests fate: checkasm: Split monolithic test into individual components Nov 8, 2016
tools aviocat: Support avio options Oct 25, 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: 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 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: Hardcode avversion.h dependency Oct 27, 2016
README doc: Add more information in the README Aug 15, 2014
README.md doc: Add travis badge Sep 13, 2015
RELEASE Make the RELEASE file match with the most recent tag Oct 14, 2016
arch.mak ppc: vsx: Implement float_dsp May 31, 2015
avconv.c avconv: Drop stray leftover debug output Nov 9, 2016
avconv.h avconv: support parsing bitstream filter options Nov 2, 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: Correct function pointer assignments in options array Nov 8, 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 avplay: Correct function pointer assignments in options array Nov 8, 2016
avprobe.c avprobe: Add -show_stream_entry to get a single stream property Nov 1, 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: Move license checks directly after command line parsing Nov 9, 2016
library.mak build: Drop duplicate asm recipe Oct 17, 2016
version.sh 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.