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FFmpeg git repo
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wm4 816577716b avcodec/dvdsubdec: fix accessing dangling pointers 
dvdsub_decode() can call append_to_cached_buf() 2 times, the second time
with ctx->buf as argument. If the second append_to_cached_buf() reallocs
ctx->buf, the argument will be a pointer to the previous, freed block.
This can cause invalid reads at least with some fuzzed files - and
possibly with valid files.

Since packets can apparently not be larger than 64K (even if packets are
combined), just use a fixed size buffer. It will be allocated as part of
the DVDSubContext, and although some memory is "wasted", it's relatively
minimal by modern standards and should be acceptable.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-01-08 17:45:32 +01:00
compat
doc Merge commit '71ec3d36fa6122b3b6c5c68a21b9c70cb2e668e8' 2015-01-08 17:13:38 +01:00
libavcodec avcodec/dvdsubdec: fix accessing dangling pointers 2015-01-08 17:45:32 +01:00
libavdevice avdevice/lavfi: Use avio_closep() to avoid leaving stale pointers in memory 2015-01-08 14:11:44 +01:00
libavfilter lavfi/boxblur: Readd 8bit colour spaces on big-endian. 2015-01-08 15:24:59 +01:00
libavformat avformat/hlsenc: Use avio_closep() to avoid leaving stale pointers in memory 2015-01-08 14:51:04 +01:00
libavresample
libavutil Merge commit '07a0c0f0005072d115ace61e60f46be68582cc3a' 2015-01-06 21:37:48 +01:00
libpostproc
libswresample
libswscale Merge commit '1dd797e3c9f179f957316a0becbec048b42df8aa' 2015-01-06 21:44:50 +01:00
presets
tests
tools tools/ismindex.c: Use av_realloc_array() 2015-01-06 21:08:33 +01:00
.gitattributes
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arch.mak
Changelog Merge commit '8a3d9ca603f4d15ecaa9ca379cbaab4ecaec8ce4' 2015-01-07 00:48:23 +01:00
cmdutils_common_opts.h
cmdutils_opencl.c
cmdutils.c cmdutils.c: Use av_realloc_array() 2015-01-06 17:52:54 +01:00
cmdutils.h
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configure Merge commit '3852e2c926ddb166c7aa69c4644a86100ea144d9' 2015-01-08 17:27:19 +01:00
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CREDITS
ffmpeg_dxva2.c
ffmpeg_filter.c
ffmpeg_opt.c ffmpeg_opt: Use avio_closep() to avoid leaving stale pointers in memory 2015-01-08 14:10:23 +01:00
ffmpeg_vda.c
ffmpeg_vdpau.c
ffmpeg.c ffmpeg: Use avio_closep() to avoid leaving stale pointers in memory 2015-01-08 14:10:58 +01:00
ffmpeg.h
ffplay.c
ffprobe.c
ffserver_config.c
ffserver_config.h
ffserver.c ffserver: Use avio_closep() to avoid leaving stale pointers in memor 2015-01-08 14:11:12 +01:00
INSTALL.md
library.mak
LICENSE.md
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README.md
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version.sh

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 analisys 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.