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Mark Harris 6f6cd2e29d avutil/mem: Fix invalid use of av_alloc_size 
The alloc_size attribute is valid only on functions that return a
pointer.  GCC 9 (not yet released) warns about invalid usage:

./libavutil/mem.h:342:1: warning: 'alloc_size' attribute ignored on a function returning int' [-Wattributes]
  342 | av_alloc_size(2, 3) int av_reallocp_array(void *ptr, size_t nmemb, size_t size);
      | ^~~~~~~~~~~~~

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 4361293fcf)
2019-07-23 01:21:46 -03:00
compat
doc Update for 3.1.11 2017-09-25 11:12:38 +02:00
libavcodec avcodec/hevcdec: decode at most one slice reporting being the first in the picture 2019-03-20 22:09:31 -03:00
libavdevice avdevice/iec61883: free the private context at the end 2018-04-18 22:59:37 -03:00
libavfilter avfilter/af_silenceremove: fix possible crash if supplied duration is negative 2019-01-25 00:57:38 +01:00
libavformat avformat/libssh: check the user provided a password before trying to use it 2018-01-11 10:40:33 -03:00
libavresample
libavutil avutil/mem: Fix invalid use of av_alloc_size 2019-07-23 01:21:46 -03:00
libpostproc
libswresample
libswscale libswscale/tests/swscale: Fix uninitialized variables 2017-05-16 16:00:23 +02:00
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Changelog Update for 3.1.11 2017-09-25 11:12:38 +02:00
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ffprobe.c ffprobe: Fix NULL pointer handling in color parameter printing 2017-09-17 15:57:27 +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.
  • 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.