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Pull request Compare This branch is 5 commits ahead, 218 commits behind libav:master.
Latest commit 0780215 @somasis somasis committed with configure: Replace `pr` since it is not provided by busybox
While pr is a valid POSIX.1 command, its usage in configure
is a little borderline and is possible to replace it with

Bug-Id: 913

Signed-off-by: Luca Barbato <>
Failed to load latest commit information.
compat w32pthreads: Map MemoryBarrier to __sync_synchronize on mingw
doc doc: Amend the MSYS2 Documentation
libavcodec pgssubdec: fix API compability layer
libavdevice avfoundation: Simple capture
libavfilter vsrc_color: implement frame rate
libavformat avi: Spin out the logic to position to the next non-interleaved stream
libavresample avresample: Document avresample_open() a little better
libavutil xtea: Add functions for little endian mode
libswscale lavu: Drop the {minus,plus}1 suffix from AVComponentDescriptor fields
presets presets: spelling error in libvpx 1080p50_60
tests movenc-test: Fix integer overflows
tools avpacket: Replace av_free_packet with av_packet_unref
.gitattributes Treat all '*.pnm' files as non-text file
.gitignore Checkasm: assembly testing and benchmarking tool
.travis.yml travis: Enable OSX integration
COPYING.GPLv3 Add configure option to upgrade (L)GPL to version 3.
COPYING.LGPLv2.1 cosmetics: Delete empty lines at end of file.
COPYING.LGPLv3 Add configure option to upgrade (L)GPL to version 3.
CREDITS partially rename FFmpeg to Libav
Changelog avfoundation: Simple capture
INSTALL doc: clarify configure features
LICENSE license: Mention that vf_interlace is GPL, not LGPL
Makefile configure: ObjC support
README doc: Add more information in the README doc: Add travis badge
RELEASE Make the RELEASE file match with the most recent tag
arch.mak ppc: vsx: Implement float_dsp
avconv.c avconv: set packet duration for CFR video streams
avconv.h avconv: add support for Intel QSV-accelerated transcoding
avconv_dxva2.c avconv_dxva2: add hevc support
avconv_filter.c avconv: Do not try to configure filter outputs without streams
avconv_opt.c avconv: add support for Intel QSV-accelerated transcoding
avconv_qsv.c avconv: add support for Intel QSV-accelerated transcoding
avconv_vda.c avconv: vda: Unlock the pixel buffer once it is accessed
avconv_vdpau.c avconv_vdpau: allocate video surface of VDPAU-specified size
avplay.c avpacket: Replace av_free_packet with av_packet_unref
avprobe.c avprobe: Unref the packet once it is used
cmdutils.c cmdutils: Check for and report the correct codec capability
cmdutils.h avconv: use read_file() for reading the 2pass stats
cmdutils_common_opts.h avplay: Accept cpuflags option
common.mak build: add Solaris symbol versioning
configure configure: Replace `pr` since it is not provided by busybox
library.mak build: Support executable only ldflags Drop git- prefix from version labels


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.

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