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Matt Wolenetz 1ed2fae5d6 lafv/wavdec: Fail bext parsing on incomplete reads 
avio_read can successfully return even when less than the requested
amount of input was read. wavdec's bext parsing mistakenly assumed a
successful avio_read always read the full amount that was requested.
The result could be dictionary tags populated with partially
uninitialized values.

This change also fixes a broken assertion in wav_parse_bext_string that
was off-by-one, though no known current usage of that method hits that
broken case.

Chromium bug: 987270

Signed-off-by: Matt Wolenetz <wolenetz@chromium.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 052d41377a)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-11 20:18:46 +01:00
compat
doc Update for 4.0.4 2019-03-21 16:52:50 +01:00
ffbuild
fftools
libavcodec avcodec/utils: fix leak of subtitle_header on error path 2019-11-11 20:18:46 +01:00
libavdevice
libavfilter
libavformat lafv/wavdec: Fail bext parsing on incomplete reads 2019-11-11 20:18:46 +01:00
libavresample
libavutil avutil/softfloat_ieee754: Fix odd bit position for exponent and sign in av_bits2sf_ieee754() 2019-11-11 20:18:46 +01:00
libpostproc postproc/postprocess_template: remove FF_REG_sp from clobber list 2019-03-21 10:42:51 +01:00
libswresample
libswscale swscale/tests/swscale: Lengthen pixfmt name buffer to 21 bytes 2019-11-11 20:18:45 +01:00
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Changelog Changelog: update 2019-03-27 09:33:52 +01:00
configure configure: use vpx_codec_vp8_dx/cx for libvpx-vp8 checking 2019-03-21 10:42:52 +01:00
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RELEASE Update for 4.0.4 2019-03-21 16:52:50 +01:00
RELEASE_NOTES

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.