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Pan Bian 2ba6d7cb82 ffmpeg: Check read_ffserver_streams() return value 
The function avformat_alloc_context() will return a NULL pointer on
failure. However, in function read_ffserver_streams(), its return value
is not validated and the subsequent dereference may result in a bad
memory access bug. Check its return value against NULL and avoid
potential NULL dereference.

Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 		2017-11-28 01:18:22 +01:00
compat compat/cuda: Pass a logging context to load functions 2017-11-20 15:47:05 +00:00
doc lavc: Mark all AVHWAccel structures as const 2017-11-26 21:41:19 +00:00
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fftools ffmpeg: Check read_ffserver_streams() return value 2017-11-28 01:18:22 +01:00
libavcodec avcodec/nvdec: More effort to make vp8 compile with gcc < 4.6 2017-11-26 22:21:12 -08:00
libavdevice lavd/alsa: Double maximum alsa buffer size. 2017-11-27 14:05:28 +01:00
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libavutil hwcontext_vaapi: Do not assume that sw_format is transferable 2017-11-26 15:40:24 +00:00
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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 and will be ignored.