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Kevin Mark 08213e0b79 libavfilter/scale2ref: Fix out-of-bounds array access 
ff_scale_eval_dimensions blindly assumes that two inputs are always
available as of 3385989b98. This is
notably not the case when the function is called for the scale
filter. With the scale filter inputs[1] does not exist.

ff_scale_eval_dimensions now has an updated scale2ref check that
makes certain two inputs are actually available before attempting to
access the second one.

Thanks to James Almer for reporting this bug. This should fix the 820
Valgrind tests I single-handedly managed to break.

Signed-off-by: Kevin Mark <kmark937@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 		2017-06-03 23:14:04 +02:00
compat compat/cuda: make cuvidGetDecoderCaps optional 2017-06-01 12:39:06 +02:00
doc libavfilter/scale2ref: Add constants for the primary input 2017-06-01 22:56:08 +02:00
ffbuild build: remove --enable-raise-major configure option 2017-05-17 22:52:59 -03:00
libavcodec x86/aacpsdsp: optimize ff_ps_stereo_interpolate_sse3 2017-06-03 12:39:43 -03:00
libavdevice Use AVOnce as a static variable consistently 2017-05-22 12:36:32 +02:00
libavfilter libavfilter/scale2ref: Fix out-of-bounds array access 2017-06-03 23:14:04 +02:00
libavformat avformat/matroskaenc: also write chapters when output is WebM 2017-06-02 20:44:53 -03:00
libavresample Merge commit '92db5083077a8b0f8e1050507671b456fd155125' 2017-05-04 19:59:30 -03:00
libavutil avutil/pixfmt: remove superfluous define 2017-06-01 01:18:49 -03:00
libpostproc Merge commit '92db5083077a8b0f8e1050507671b456fd155125' 2017-05-04 19:59:30 -03:00
libswresample Merge commit '92db5083077a8b0f8e1050507671b456fd155125' 2017-05-04 19:59:30 -03:00
libswscale Merge commit '92db5083077a8b0f8e1050507671b456fd155125' 2017-05-04 19:59:30 -03:00
presets
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tests checkasm: add _fixed suffix to fixed_dsp tests 2017-06-01 13:12:20 -03:00
tools tools/target_dec_fuzzer: Move the hwaccel check outside the initialization if 2017-05-29 03:40:47 +02:00
.gitattributes fate: add SCC test 2017-01-27 17:06:42 +01:00
.gitignore build: add support for building .cu files via nvcc 2017-05-15 11:46:50 +02:00
.travis.yml
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CONTRIBUTING.md
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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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Changelog avfilter: add audio surround upmixer 2017-06-01 21:25:36 +02:00
INSTALL.md
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LICENSE.md Merge commit '4fef648d10bf3bcfd4b8fa5755c1128966a2427c' 2017-03-15 22:07:47 +01:00
MAINTAINERS lavc: remove libschroedinger encoding and decoding wrappers 2017-05-29 20:15:58 +01:00
Makefile build: remove --enable-raise-major configure option 2017-05-17 22:52:59 -03:00
README.md
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RELEASE Bump minor versions for master after release/3.3 branchpoint 2017-03-31 13:21:06 +02:00
cmdutils.c avformat, ffmpeg: deprecate old rotation API 2017-03-27 13:20:27 +02:00
cmdutils.h Merge commit '122de16dd8108a59a55d30543c9f28b5f61b02d1' 2017-05-05 14:04:30 +02:00
cmdutils_opencl.c cmdutils_opencl: Fix read of uinitialized cl_mem 2017-05-11 13:02:12 +02:00
configure Disable MSA optimization for big endian arch 2017-06-03 00:09:58 +02:00
ffmpeg.c ffmpeg: remove bsf extradata propagation hack 2017-05-24 20:28:00 -03:00
ffmpeg.h ffmpeg: remove bsf extradata propagation hack 2017-05-24 20:28:00 -03:00
ffmpeg_cuvid.c ffmpeg_cuvid: adapt for recent filter graph initialization changes 2017-03-03 08:45:43 +01:00
ffmpeg_dxva2.c
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ffmpeg_filter.c ffmpeg: check for unconnected outputs 2017-05-05 00:15:15 +02:00
ffmpeg_opt.c ffmpeg: remove bsf extradata propagation hack 2017-05-24 20:28:00 -03:00
ffmpeg_qsv.c ffmpeg: init filtergraphs only after we have a frame on each input 2017-03-03 08:45:43 +01:00
ffmpeg_vaapi.c ffmpeg_vaapi: Always set hwaccel_ctx, so it gets properly cleaned up on error 2017-02-05 15:13:15 +00:00
ffmpeg_vdpau.c
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ffmpeg_videotoolbox.c ffmpeg_videotoolbox: fix usage of av_get_codec_tag_string() 2017-03-29 14:49:29 +02:00
ffplay.c Merge commit '122de16dd8108a59a55d30543c9f28b5f61b02d1' 2017-05-05 14:04:30 +02:00
ffprobe.c ffprobe: Print AVContentLightMetadata side data contents 2017-06-01 15:07:16 -04:00
ffserver.c Merge commit '122de16dd8108a59a55d30543c9f28b5f61b02d1' 2017-05-05 14:04:30 +02:00
ffserver_config.c
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ffserver_config.h
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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 and will be ignored.