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Andreas Rheinhardt 4cc43d30c3 avformat/rmdec: Actually return value < 0 on read_header failure
The RealMedia demuxer's read_header function initially initializes ret,
the variable designated for the return variable to -1. Afterwards, chunks
of the file are parsed in a loop until an error happens or until the actual
frame data is encountered. If the first function whose return
value is put into ret doesn't fail, then ret contains a value >= 0
(actually == 0) and this is what will be returned if an error is
encountered afterwards.

This is a regression since 35bbc1955a.
Before that, ret had never been overwritten with a nonnegative value.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-09-19 20:26:50 +02:00
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libavcodec avcodec/mpegaudiodec*: Cleanup generically on init failure 2020-09-19 18:52:41 +02:00
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libavfilter avfilter/vf_datascope: fix oscilloscope with gray>8 depth 2020-09-19 16:38:21 +02:00
libavformat avformat/rmdec: Actually return value < 0 on read_header failure 2020-09-19 20:26:50 +02:00
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libavutil avutil/fixed_dsp: Fix integer overflows in butterflies_fixed_c() 2020-09-19 00:37:45 +02:00
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tests avformat/mxfdec: Read Apple private Content Light Level from MXF 2020-09-17 21:40:25 +02:00
tools tools/target_dec_fuzzer: Adjust VQA threshold 2020-09-19 00:40:56 +02:00
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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.