Skip to content


Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
collection of Libav topic branches

This branch is 1 commit ahead, 26 commits behind libav:master

configure: Initial ObjC support

Assumes that the C compiler and the ObjC compiler do match for now
(default for OSX) and adds the ability to add ObjC-specific cflags
(e.g. -fobjc-arc).
latest commit c17a505af0
Luca Barbato authored
Failed to load latest commit information.
compat w32pthreads: use the condition variable API directly when targeting n…
doc xcbgrab: Provide better names for the y and x option
libavcodec qsv: Skip qsv.h compilation if qsv is not enabled
libavdevice xcbgrab: Unbreak parsing filename options
libavfilter graphparser: Check av_get_token() memory error
libavformat matroskaenc: Allow writing track "forced" flag
libavresample libavresample: NEON optimized FIR audio resampling
libavutil libavutil: Add ARM av_clip_intp2_arm
libswscale swscale: Check memory allocations
presets presets: spelling error in libvpx 1080p50_60
tests fate: Rename fate-dts test to fate-dca-core
tools sidxindex: Remove parsing that isn't necessary any longer
.gitattributes Treat all '*.pnm' files as non-text file
.gitignore Ignore generated file tools/sidxindex.
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 libavformat: add T.140 RTP depacketization (RFC 4103)
INSTALL doc: clarify configure features
LICENSE license: Mention that vf_interlace is GPL, not LGPL
Makefile configure: Initial ObjC support
README doc: Add more information in the README doc: Add more information in the README
RELEASE Make the RELEASE file match with the most recent tag
arch.mak aarch64: add armv8 CPU flag
avconv.c avconv: copy stream-level side data when streamcopying
avconv.h avconv: do not use the stream codec context for encoding
avconv_dxva2.c avconv_dxva2: add hevc support
avconv_filter.c avconv: fix leak in filter error
avconv_opt.c avconv: Check rc_override memory allocation
avconv_vda.c avconv: Support VDA hwaccel
avconv_vdpau.c avconv_vdpau: allocate video surface of VDPAU-specified size
avplay.c avplay: Check format allocation inside decode_thread()
avprobe.c Don't anonymously typedef structs
cmdutils.c cmdutils: update copyright year to 2015.
cmdutils.h cmdutils: Mark exit_program as av_noreturn
cmdutils_common_opts.h avplay: Accept cpuflags option
common.mak build: export library dependencies in ${name}_FFLIBS
configure configure: Initial ObjC support
library.mak build: Support executable only ldflags Drop git- prefix from version labels


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.

Something went wrong with that request. Please try again.