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Latest commit 55711e6 Michael Niedermayer avcodec/dnxhddec: Disable 12bit by default
The DC VLC table used is too small, fixing this requires a sample,
thus request a sample.
Some samples are said to work even though the table has the wrong size, thus
this is left enabled if the user enables experimental features.

Fixes: 2abd25478c62a675f335fac00b467023/asan_static-oob_10aff98_1227_8811480c6ef1e970a7977ceb7e5a9958.mxf

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Approved-by: kurosu
Signed-off-by: Michael Niedermayer <>
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compat os2threads: Add pthread_once()
doc developer.texi: Call out K&R coding style.
libavcodec avcodec/dnxhddec: Disable 12bit by default
libavdevice avdevice/dshow_enummediatypes: check return of av_malloc
libavfilter avfilter/af_sidechaincompress: fix output gain for rms(default) detec…
libavformat lavf/mxfdec: Set width to actual coded_width for AVCI50.
libavresample Merge commit 'e2854e731f843906d9a9a5b882bed872341999fd'
libavutil avutil/lls: speed up performance of solve_lls
libpostproc Merge commit 'e88103a7f92cf27a2868b50acc8a9912f6088249'
libswresample swresample/resample: remove redundant L for floating literal
libswscale swscale/arm: add ff_nv{12,21}_to_{argb,rgba,abgr,bgra}_neon
presets presets: remove moldering iPod presets
tests AAC encoder: make pe.min a local minimum
tools patcheck: Fix false detection of 'mergeable calls' when line is removed
.gitattributes Treat all '*.pnm' files as non-text file
.gitignore gitignore: ignore object file temporaries
.travis.yml Merge commit 'eda183287489b2c705843aa373a19c4e46fb2fec'
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CREDITS CREDITS: redirect to Git log, remove current outdated content
Changelog Merge commit '4a0918cae6394e503b17c71f8f171b4a795eb849' INSTALL: add markdown syntax avfilter: add rubberband wrapper
MAINTAINERS lavfi: remove astreamsync.
Makefile Merge commit 'fb472e1a11a4e0caed2c3c91da01ea8e35d9e3f8' README: replace http with https
RELEASE RELEASE: update to 2.8.git
arch.mak use mmi instead of loongson3 as simd-optimization flag
cmdutils.c all: use FFDIFFSIGN to resolve possible undefined behavior in compara…
cmdutils.h cmdutils: remove sws_opts usage, simplify code
cmdutils_common_opts.h opts: add list device sources/sinks options
cmdutils_opencl.c all: use FFDIFFSIGN to resolve possible undefined behavior in compara…
common.mak Merge commit 'c1aac39eaccd32dc3b74ccfcce701d3d888fbc6b'
configure avcodec/libdcadec: require first public release
ffmpeg.c ffmpeg: fix -copy_prior_start 0 with -copyts and input -ss
ffmpeg.h ffmpeg: Fixing typos and adding comments to fps code
ffmpeg_dxva2.c ffmpeg_dxva2: call GetDesktopWindow() in place of GetShellWindow()
ffmpeg_filter.c ffmpeg_filter: remove redundant null ptr check
ffmpeg_opt.c all: remove some casts of function pointer to void *
ffmpeg_qsv.c Merge commit 'fb472e1a11a4e0caed2c3c91da01ea8e35d9e3f8'
ffmpeg_vdpau.c ffmpeg_vdpau: Ignore decoder's max supported level
ffmpeg_videotoolbox.c ffmpeg/videotoolbox: protect UTGetOSTypeFromString on both VDA and VT
ffplay.c Replace remaining occurances of av_free_packet with av_packet_unref
ffprobe.c ffprobe: add support for printing packet strings metadata as packet tags
ffserver.c ffserver: add NULL context to ff_rtsp_parse_line().
ffserver_config.c ffserver_config: check for INT_MIN before doing FFABS
ffserver_config.h ffserver: Use singlejpeg muxer for jpeg
library.mak build: add LDLIBFLAGS add note that ffversion.h is auto-generated


FFmpeg 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.
  • libswresample implements audio mixing and resampling routines.
  • libswscale implements color conversion and scaling routines.


  • ffmpeg is a command line toolbox to manipulate, convert and stream multimedia content.
  • ffplay is a minimalistic multimedia player.
  • ffprobe is a simple analysis tool to inspect multimedia content.
  • ffserver is a multimedia streaming server for live broadcasts.
  • 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.


Coding examples are available in the doc/examples directory.


FFmpeg codebase is mainly LGPL-licensed with optional components licensed under GPL. Please refer to the LICENSE file for detailed information.


Patches should be submitted to the ffmpeg-devel mailing list using git format-patch or git send-email. Github pull requests should be avoided because they are not part of our review process. Few developers follow pull requests so they will likely be ignored.

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