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wm4 9aab222239 avcodec/dvdsubdec: reject some broken packets 
If cmd_pos is broken, this would just keep accumulating packets in the
reassembly buffer, until it fails and flushes the buffer on overflow.
Since packets are usually rather small, this will take a lot of subtitle
packets. The perceived effect is that subtitles are not displayed
anymore after the faulty packet was passed to the decoder.

I'm not terribly sure about this, but on the other hand this code is
active only when fragmented packets need to be reassembled.

Fixes sample file in trac issue #4872.
2015-09-22 17:41:01 +02:00
compat use a wrapper script to call MS link.exe to avoid mixing with /usr/bin/link.exe 2015-07-24 20:02:32 +02:00
doc avfilter: add tremolo filter 2015-09-22 15:59:39 +02:00
libavcodec avcodec/dvdsubdec: reject some broken packets 2015-09-22 17:41:01 +02:00
libavdevice avdevice/libdc1394: add const to suppress "assignment discards const qualifier from pointer target type" warnings 2015-09-20 22:12:37 +02:00
libavfilter avfilter: add tremolo filter 2015-09-22 15:59:39 +02:00
libavformat avformat/hls: fix some cases of HLS streams which require cookies 2015-09-22 17:41:01 +02:00
libavresample avresample/resample: remove unused variable 2015-09-19 23:40:34 +02:00
libavutil avutil/attributes: add AV_GCC_VERSION_AT_MOST 2015-09-18 12:41:29 -03:00
libpostproc Merge commit 'e88103a7f9' 2015-09-05 21:35:46 +02:00
libswresample Merge commit 'e88103a7f9' 2015-09-05 21:35:46 +02:00
libswscale swscale: fix ticket 4850 2015-09-20 18:08:14 -03:00
presets presets: remove moldering iPod presets 2014-06-17 16:15:04 -08:00
tests vp9: fix loopfilter test code to address Hendrik's comments. 2015-09-21 20:44:14 -04:00
tools Merge commit '87e5d8d78c' 2015-09-07 12:27:21 +02:00
.gitattributes Treat all '*.pnm' files as non-text file 2014-11-28 17:52:43 -05:00
.gitignore .gitignore: ignore temp files 2015-09-10 17:55:34 +02:00
.travis.yml Merge commit '1e0b8bf0b3' 2015-09-12 13:31:22 +02:00
arch.mak use mmi instead of loongson3 as simd-optimization flag 2015-07-07 03:46:57 +02:00
Changelog avfilter: add tremolo filter 2015-09-22 15:59:39 +02:00
cmdutils.c cmdutils: Filter dst/srcw/h 2015-09-19 21:25:40 +02:00
cmdutils.h cmdutils: remove sws_opts usage, simplify code 2015-08-08 16:51:25 +02:00
cmdutils_common_opts.h opts: add list device sources/sinks options 2014-10-25 20:20:31 +02:00
cmdutils_opencl.c OpenCL: Avoid potential buffer overflow in cmdutils_opencl.c 2015-04-28 12:18:23 +02:00
common.mak Merge commit '3ae0e721c7' 2015-07-22 16:30:37 +02:00
configure configure: silence error if tput not found 2015-09-21 10:20:45 +02:00
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1 cosmetics: Delete empty lines at end of file. 2012-02-09 12:26:45 +01:00
COPYING.LGPLv3
CREDITS CREDITS: redirect to Git log, remove current outdated content 2013-01-31 18:02:52 +01:00
ffmpeg.c Merge commit '6064f697a3' 2015-09-12 15:12:05 +02:00
ffmpeg.h ffmpeg: switch swscale option handling to AVDictionary similar to what the other subsystems use 2015-08-08 14:44:15 +02:00
ffmpeg_dxva2.c ffmpeg_dxva2: call GetDesktopWindow() in place of GetShellWindow() 2015-06-03 16:25:08 +02:00
ffmpeg_filter.c lavfi: fix compilation with FF_API_OLD_FILTER_OPTS=0. 2015-08-18 22:22:49 -04:00
ffmpeg_opt.c Merge commit '7bb1c1bfd2' 2015-09-17 11:46:34 +02:00
ffmpeg_vdpau.c ffmpeg_vdpau: Ignore decoder's max supported level 2015-08-16 15:02:33 -07:00
ffmpeg_videotoolbox.c avcodec: add new Videotoolbox hwaccel. 2015-08-03 10:12:10 +02:00
ffplay.c Remove left-over FF_API_AVFILTERBUFFER cruft 2015-09-05 16:27:19 +02:00
ffprobe.c ffprobe: use AV_OPT_TYPE_BOOL for writers options 2015-09-12 17:50:22 +02:00
ffserver.c ffserver: explicitly free() duped filename 2015-09-18 16:24:38 -07:00
ffserver_config.c ffserver: remove useless assignment leftover 2015-09-18 16:24:39 -07:00
ffserver_config.h ffserver: Use singlejpeg muxer for jpeg 2015-06-08 03:36:22 +02:00
INSTALL.md INSTALL: add markdown syntax 2014-05-28 22:38:38 +02:00
library.mak build: add LDLIBFLAGS 2015-07-08 14:35:02 +02:00
LICENSE.md avfilter: add rubberband wrapper 2015-09-20 19:54:57 +02:00
MAINTAINERS Update my email address 2015-09-22 10:47:35 +02:00
Makefile avcodec: add new Videotoolbox hwaccel. 2015-08-03 10:12:10 +02:00
README.md README.md: avoid Github pull requests 2015-09-15 10:13:46 -08:00
RELEASE RELEASE: update to 2.8.git 2015-09-09 23:53:15 -03:00
version.sh version.sh: Print versions based on the last git tag for release branches 2014-07-28 15:44:59 +02:00

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.