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Andreas Rheinhardt 0260352d92 avformat/matroskadec: Use right number of tracks 
When demuxing a Matroska/WebM file, streams are added for tracks and for
attachments, so that the array containing the former can be NULL even
when the corresponding AVFormatContext has streams. So check for there
to be tracks in the MatroskaDemuxContext instead of just streams in the
AVFormatContext before dereferencing the pointer to the tracks.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
(cherry picked from commit 1ef30571a0)
2020-06-15 17:25:46 +02:00
compat compat/cuda/ptx2c: remove shell loop; fix BSD sed compat 2020-06-01 22:10:41 -05:00
doc avcodec/libzvbi-teletextdec: fix txt_default_region limits 2020-06-14 21:10:41 +02:00
ffbuild common.mak: Also clean Windows debug files. 2020-03-21 18:46:00 +01:00
fftools fftools/ffmpeg: update text requesting samples 2020-06-01 14:39:52 -04:00
libavcodec avcodec/hevc_mp4toannexb_bsf: Check NAL size against available input 2020-06-15 04:18:16 +02:00
libavdevice Bump minor versions to separate 4.3 from master 2020-06-08 22:49:04 +02:00
libavfilter Bump minor versions to separate 4.3 from master 2020-06-08 22:49:04 +02:00
libavformat avformat/matroskadec: Use right number of tracks 2020-06-15 17:25:46 +02:00
libavresample
libavutil Bump minor versions to separate 4.3 from master 2020-06-08 22:49:04 +02:00
libpostproc Bump minor versions to separate 4.3 from master 2020-06-08 22:49:04 +02:00
libswresample Bump minor versions to separate 4.3 from master 2020-06-08 22:49:04 +02:00
libswscale Bump minor versions to separate 4.3 from master 2020-06-08 22:49:04 +02:00
presets
tests Revert "lavf/mp3dec: don't adjust start time; packets are not adjusted." 2020-06-08 22:08:37 +02:00
tools tools/target_dec_fuzzer: enable mjpeg for tiff or tdsc 2020-06-08 20:45:56 +02:00
.gitattributes
.gitignore tools/python: add script to convert TensorFlow model (.pb) to native model (.model) 2019-07-01 10:23:47 -03:00
.mailmap mailmap: fix 3-address entries 2020-03-31 04:14:14 -05:00
.travis.yml Merge commit '899ee03088d55152a48830df0899887f055da1de' 2019-03-14 15:53:16 -03:00
Changelog Changelog: Add 4.3 cut marker 2020-06-08 22:43:10 +02:00
configure configure: NotchLC depends on lzf 2020-05-27 15:22:35 +02:00
CONTRIBUTING.md
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1
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CREDITS
INSTALL.md
LICENSE.md avfilter/vf_geq: Relicense to LGPL 2019-12-28 11:20:48 +01:00
MAINTAINERS oggdec: remove the oggparsedaala subdemuxer 2020-05-23 19:07:20 +01:00
Makefile Makefile: Delete more created files when running "make distclean". 2020-03-11 11:43:01 +01:00
README.md
RELEASE Update for version 4.3 2020-06-08 22:51:03 +02:00
RELEASE_NOTES RELEASE_NOTES: Based on the version from 4.1 2020-06-14 22:02:34 +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.
  • 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.