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Ronald S. Bultje 2dcc0bce39 vp9: change order of operations in adapt_prob(). 
This is intended to workaround bug "665 Integer Divide Instruction May
Cause Unpredictable Behavior" on some early AMD CPUs, which causes a
div-by-zero in this codepath, such as reported in Mozilla bug #1293996.

Note that this isn't guaranteed to fix the bug, since a compiler is free
to reorder instructions that don't depend on each other. However, it
appears to fix the bug in Firefox, and a similar patch was applied to
libvpx also (see Chrome bug #599899).

(cherry picked from commit be885da3427c5d9a6fa68229d16318afffe67193)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2016-12-05 18:29:12 +01:00
compat
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doc
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libavcodec
vp9: change order of operations in adapt_prob().
2016-12-05 18:29:12 +01:00
libavdevice
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libavfilter
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libavformat
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libavresample
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libavutil
softfloat: decrease MIN_EXP to cover full float range
2016-11-27 00:28:08 +01:00
libpostproc
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libswresample
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libswscale
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presets
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tests
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tools
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.gitattributes
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.gitignore
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.travis.yml
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arch.mak
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Changelog
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cmdutils_common_opts.h
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cmdutils_opencl.c
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cmdutils.c
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cmdutils.h
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common.mak
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configure
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COPYING.GPLv2
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COPYING.GPLv3
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COPYING.LGPLv2.1
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COPYING.LGPLv3
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CREDITS
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ffmpeg_cuvid.c
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ffmpeg_dxva2.c
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ffmpeg_filter.c
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ffmpeg_opt.c
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ffmpeg_qsv.c
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ffmpeg_vaapi.c
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ffmpeg_vdpau.c
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ffmpeg_videotoolbox.c
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ffmpeg.c
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ffmpeg.h
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ffplay.c
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ffprobe.c
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ffserver_config.c
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ffserver_config.h
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ffserver.c
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INSTALL.md
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library.mak
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LICENSE.md
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MAINTAINERS
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Makefile
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README.md
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RELEASE
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RELEASE_NOTES
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version.sh
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README.md

FFmpeg README

FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.

Libraries

  • 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.

Tools

  • 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.

Documentation

The offline documentation is available in the doc/ directory.

The online documentation is available in the main website and in the wiki.

Examples

Coding examples are available in the doc/examples directory.

License

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

Contributing

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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