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Ganesh Ajjanagadde 979572365f avcodec/ac3enc: fix undefined negative left shift This should fix the undefined behavior reported in: https://trac.ffmpeg.org/ticket/4727. I can reproduce this at runtime: simply stick in an abort call in asym_quant to check if c < 0 and run FATE. I don't know ac3 so I can't confirm if negative coefficients are intentional, but at the moment they clearly are according to FATE. This resolves the undefined behavior. Tested with FATE. Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>		2015-10-10 14:43:22 +02:00
compat	Merge commit '2830bce47e2eb29c76202f19017031ddc1f95dd3'	2015-10-10 09:45:44 +02:00
doc	doc: fix spelling errors	2015-10-09 22:09:08 +02:00
libavcodec	avcodec/ac3enc: fix undefined negative left shift	2015-10-10 14:43:22 +02:00
libavdevice	…
libavfilter	doc: fix spelling errors	2015-10-09 22:09:08 +02:00
libavformat	Merge commit '00cc10aee380f882507bac994ac469d8358d12e8'	2015-10-10 09:56:29 +02:00
libavresample	…
libavutil	lavu/opt: add flag to return NULL when applicable in av_opt_get	2015-10-09 04:12:57 -05:00
libpostproc	…
libswresample	swresample/resample: manually unroll the main loop in bessel()	2015-10-07 18:00:58 +02:00
libswscale	…
presets	…
tests	fate: add DNxHD/HR tests	2015-10-09 22:36:05 +02:00
tools	…
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INSTALL.md	…
LICENSE.md	…
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Makefile	…
README.md	…
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arch.mak	…
cmdutils.c	…
cmdutils.h	…
cmdutils_common_opts.h	…
cmdutils_opencl.c	…
common.mak	…
configure	Merge commit 'd7a5a178c252b625537adc046392624ad543dea7'	2015-10-10 09:37:51 +02:00
ffmpeg.c	ffmpeg: avoid possible undefined behavior	2015-10-09 21:19:39 +02:00
ffmpeg.h	…
ffmpeg_dxva2.c	…
ffmpeg_filter.c	Merge commit '8b830ee9a26d47b138f12a82085cdb372f407f1e'	2015-10-10 09:43:47 +02:00
ffmpeg_opt.c	…
ffmpeg_vdpau.c	…
ffmpeg_videotoolbox.c	build: restore videotoolbox compilation on iOS	2015-10-09 10:59:31 +02:00
ffplay.c	…
ffprobe.c	…
ffserver.c	…
ffserver_config.c	…
ffserver_config.h	…
library.mak	…
version.sh	…

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.