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John Stebbins f7357facd8 lavf/mov: fix huge alloc in mov_read_ctts 
An invalid file may cause huge alloc.  Delay expansion of ctts entries
until the number of samples is known in mov_build_index.

Fixes: 23

Found-by: zhao dongzhuo, AD-lab of Venustech
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 2d015d3bf9)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2017-12-07 23:38:06 +01:00
compat compat/cuda/ptx2c: strip CR from each line 2017-08-30 11:20:34 +02:00
doc Update versions for 3.4 release 2017-10-15 02:30:15 +02:00
ffbuild build: prevent SDL2 from polluting global cflags and extralibs 2017-10-09 21:41:11 -03:00
fftools ffserver: Fix off by 1 error in path 2017-12-07 23:38:06 +01:00
libavcodec avcodec/mlpdsp: Fix signed integer overflow, 2nd try 2017-12-07 23:38:06 +01:00
libavdevice Bump minor versions for branching 3.4 2017-10-11 01:23:47 +02:00
libavfilter lavfi/af_pan: fix sign handling in channel coefficient parser 2017-11-21 14:04:10 +01:00
libavformat lavf/mov: fix huge alloc in mov_read_ctts 2017-12-07 23:38:06 +01:00
libavresample Bump minor versions for branching 3.4 2017-10-11 01:23:47 +02:00
libavutil avutil/softfloat: Add FLOAT_MIN 2017-12-07 23:38:06 +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.
  • 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.