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Andreas Rheinhardt 5d7d0fcd70 avformat/matroskaenc: Slightly improve size bounds for cues 
The upper bounds currently used for determining the size of a CuePoint's
length field can be improved somewhat; as a result, a CuePoint
containing three CueTrackPositions will now only need a size field
with one byte length.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
2019-05-08 13:02:28 -03:00
compat compat/avisynth: update headers 2019-05-04 11:56:53 +05:30
doc doc/filters: layout requirements for xstack 2019-05-07 17:54:24 +05:30
ffbuild Merge commit '7e5bde93a1e7641e1622814dafac0be3f413d79b' 2019-03-10 19:31:13 -03:00
fftools libavformat: improve logs with cur_dts 2019-04-19 17:14:44 +02:00
libavcodec avcodec/cuviddec: add capability check for maximum macroblock count 2019-05-08 11:40:06 +02:00
libavdevice avdevice/decklink: fix checking video mode in SDK version 11 2019-05-05 20:07:35 +02:00
libavfilter libavfilter/dnn: add more data type support for dnn model input 2019-05-08 12:33:00 -03:00
libavformat avformat/matroskaenc: Slightly improve size bounds for cues 2019-05-08 13:02:28 -03:00
libavresample avresample: remove deprecated attribute from the AVAudioResampleContext struct 2018-01-09 10:56:53 -03:00
libavutil avutil/hwcontext_vdpau: Map 444 pix fmts to new VdpYCbCr types 2019-05-05 11:35:35 -07:00
libpostproc postproc/postprocess_template: remove FF_REG_sp from clobber list 2018-12-22 17:41:44 +01:00
libswresample Bump minor version for master after 4.1 branchpoint 2018-11-02 00:53:07 +01:00
libswscale swscale/ppc: Shorten power8 tests via a var 2019-05-07 10:08:16 +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.