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Andreas Rheinhardt 86de864741 avformat/matroskaenc: Add check for using explicit TrackNumber 
When creating DASH streams, the TrackNumber is externally prescribed
and not derived from the number of streams in the AVFormatContext, so
if the number of tracks for a file using an explicit TrackNumber was
more than one, the resulting file would be broken (it would be impossible
to tell to which track a Block belongs if different tracks share the
same TrackNumber). So disallow this.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-04-21 07:31:10 +02:00
compat
doc avformat/dashenc: add a PlaybackRate element 2020-04-20 13:49:15 -03:00
ffbuild
fftools cmdutils: stop using deprecated av_codec_next() 2020-04-20 14:50:03 +00:00
libavcodec avcodec/pngdec: Pass ret from decode_iccp_chunk() 2020-04-20 20:38:41 +02:00
libavdevice avdevice/opengl: add support of wrapped avframe codec 2020-04-16 23:52:12 +02:00
libavfilter avfilter: add maskedthreshold filter 2020-04-18 12:34:49 +02:00
libavformat avformat/matroskaenc: Add check for using explicit TrackNumber 2020-04-21 07:31:10 +02:00
libavresample
libavutil avutil/log: update text requesting samples 2020-04-17 00:08:56 +02:00
libpostproc
libswresample
libswscale swscale: aarch64: Avoid using the x18 register 2020-04-20 00:09:34 +03:00
presets
tests avformat/matroskaenc: Improve Cues in case of no video 2020-04-20 21:30:46 +02:00
tools tools: stop using deprecated av_codec_next() 2020-04-20 15:08:20 +00:00
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Changelog avfilter: add maskedthreshold filter 2020-04-18 12:34:49 +02:00
configure configure: add MLP parser as dependency to MLP and TrueHD demuxers 2020-04-19 15:58:45 -03:00
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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.
  • 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.