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Michael Niedermayer 2cb8edea7c avcodec/aacenc: Check all coefficients for finiteness 
This is needed as near infinite values on the input side result in only some
output to be non finite.
Also it may still be insufficient if subsequent computations overflow

Fixes null pointer dereference
Fixes: ae66c0f6c12ac1cd5c2c237031240f57/signal_sigsegv_2618c99_9516_6007026f2185a26d7afea895fbed6e38.ogg

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Reviewed-by: Claudio Freire <klaussfreire@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2016-01-20 21:21:31 +01:00
compat os2threads: Add pthread_once() 2015-11-12 22:31:46 +01:00
doc vf_scale: eval, param0 and param1 documentation 2016-01-20 17:31:01 +01:00
libavcodec avcodec/aacenc: Check all coefficients for finiteness 2016-01-20 21:21:31 +01:00
libavdevice remove all uses of the deprecated avpicture_get_size() function 2016-01-17 12:01:35 +01:00
libavfilter vf_scale: Detecting changes of incoming frame properties and dinamically evaluate width and height expressions 2016-01-20 13:32:00 +01:00
libavformat avformat/avio: Limit url option parsing to the documented cases 2016-01-20 21:21:31 +01:00
libavresample Merge commit 'cc4c242081' 2016-01-02 10:13:58 +01:00
libavutil lavu: add pthread asserts if ASSERT_LEVEL>1 2016-01-20 21:08:50 +01:00
libpostproc Merge commit 'e88103a7f9' 2015-09-05 21:35:46 +02:00
libswresample swr/resample: use av_clip_int16 instead of av_clip 2015-12-24 11:29:52 -08:00
libswscale yuv2rgb: Document the color space coefficients 2016-01-19 23:30:36 +01:00
presets
tests tests/fate/aac: remove unneeded strict arguments from the encoder tests 2016-01-20 17:02:51 +00:00
tools avcodec: Remove libstagefright 2016-01-06 16:43:06 +00:00
.gitattributes Treat all '*.pnm' files as non-text file 2014-11-28 17:52:43 -05:00
.gitignore gitignore: ignore object file temporaries 2015-10-10 20:30:41 +02:00
.travis.yml Merge commit 'eda1832874' 2015-11-22 17:12:24 +00:00
arch.mak mips: rename mipsdspr1 to mipsdsp 2015-12-04 02:35:42 +01:00
Changelog ffplay: toggle full screen when double-clicking the video window with the left mouse button 2016-01-19 23:15:30 +01:00
cmdutils.c cosmetics: Fix weird indentations 2015-12-07 10:43:43 -08:00
cmdutils.h cmdutils: remove sws_opts usage, simplify code 2015-08-08 16:51:25 +02:00
cmdutils_common_opts.h
cmdutils_opencl.c all: use FFDIFFSIGN to resolve possible undefined behavior in comparators 2015-11-03 16:28:30 -05:00
common.mak Merge commit '9f57f134c1' 2015-12-05 12:21:33 +01:00
configure libkvazaar: Set frame rate as a rational number 2016-01-20 17:29:13 +02:00
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1
COPYING.LGPLv3
CREDITS
ffmpeg.c Merge commit '63f7f8d1db' 2016-01-19 08:41:32 +01:00
ffmpeg.h ffmpeg: use lavf API for applying bitstream filters 2015-12-28 08:34:30 -06:00
ffmpeg_dxva2.c ffmpeg_dxva2: support vp9 hwaccel 2015-12-07 09:47:51 +01:00
ffmpeg_filter.c ffmpeg_filter: remove redundant null ptr check 2015-11-11 01:51:52 +01:00
ffmpeg_opt.c ffmpeg: use lavf API for applying bitstream filters 2015-12-28 08:34:30 -06:00
ffmpeg_qsv.c Merge commit 'fb472e1a11' 2015-10-22 16:18:02 +02:00
ffmpeg_vdpau.c ffmpeg_vdpau: Ignore decoder's max supported level 2015-08-16 15:02:33 -07:00
ffmpeg_videotoolbox.c ffmpeg/videotoolbox: protect UTGetOSTypeFromString on both VDA and VT 2015-10-15 10:22:31 +02:00
ffplay.c ffplay: toggle full screen when double-clicking the video window with the left mouse button 2016-01-19 23:15:30 +01:00
ffprobe.c ffprobe: avoid unnecessary pow and exp2 calls 2015-12-29 08:59:16 -08:00
ffserver.c ffserver: Cast time_t value when using it in a format string. 2015-12-29 16:00:34 +01:00
ffserver_config.c ffserver_config: check for INT_MIN before doing FFABS 2015-10-13 19:40:09 -04:00
ffserver_config.h ffserver: Use singlejpeg muxer for jpeg 2015-06-08 03:36:22 +02:00
INSTALL.md
library.mak build: add LDLIBFLAGS 2015-07-08 14:35:02 +02:00
LICENSE.md avfilter: add rubberband wrapper 2015-09-20 19:54:57 +02:00
MAINTAINERS avcodec: Remove libstagefright 2016-01-06 16:43:06 +00:00
Makefile mips: rename mipsdspr1 to mipsdsp 2015-12-04 02:35:42 +01:00
README.md README: replace http with https 2015-10-06 13:27:29 +02:00
RELEASE RELEASE: update to 2.8.git 2015-09-09 23:53:15 -03:00
version.sh version.sh: add note that ffversion.h is auto-generated 2015-10-25 10:14:44 -04:00

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.