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Michael Niedermayer 1a9a8750ad avcodec/dstdec: Check that AC probabilities are within range 
ISO/IEC 14496-3:2005(E): "Each entry of P_one[ ][ ] is in the range of 1 to
128, corresponding to a probability of 1/256 to 128/256 of the next error bit (bit E, See Figure 10.5)..."

Fixes: Timeout (42sec ->1sec)
Fixes: 18181/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DST_fuzzer-5736646250594304

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 0c3e1b395b)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-11 20:18:48 +01:00
compat
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libavcodec avcodec/dstdec: Check that AC probabilities are within range 2019-11-11 20:18:48 +01:00
libavdevice
libavfilter avfilter/vf_geq: Use av_clipd() instead of av_clipf() 2019-11-11 20:18:48 +01:00
libavformat avformat/nutenc: Do not pass NULL to memcmp() in get_needed_flags() 2019-11-11 20:18:48 +01:00
libavresample
libavutil
libpostproc
libswresample
libswscale
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tests avcodec/vp56rac: delay signaling an error on truncated input 2019-11-11 20:18:47 +01:00
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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.
  • 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.