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Jan Ekström 0a83ecbf48 tests: add test for ffmpeg's fix_sub_duration feature 
This long-existing feature calculates subtitle durations by keeping
it around until the following subtitle is decoded, and then utilizes
the following subtitle's pts as the end point of the previous one.

Signed-off-by: Jan Ekström <jan.ekstrom@24i.com>
2022-01-24 12:57:03 +02:00
compat Replace all occurences of av_mallocz_array() by av_calloc() 2021-09-20 01:03:52 +02:00
doc doc/filters: note format constraint for volumedetect 2022-01-24 09:51:07 +05:30
ffbuild Makefile: Redo duplicating object files in shared builds 2022-01-04 05:01:04 +01:00
fftools fftools/cmdutils: Fix undefined 1 << 31 2022-01-11 00:20:35 +01:00
libavcodec libavcodec/qsvenc: fix a memory leak problem 2022-01-24 10:18:11 +08:00
libavdevice avdevice/iec61883: #if unused code away, fix -O0 compilation 2022-01-08 18:15:18 +01:00
libavfilter avfilter/vf_libvmaf: update filter for libvmaf v2.0.0 2022-01-23 11:41:30 -08:00
libavformat avformat/hls: Remove redundant cast 2022-01-21 16:47:38 +01:00
libavutil avutil/pixfmt.h: typo 2022-01-21 11:58:23 +01:00
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libswscale swscale/x86/swscale: Remove superfluous and invalid ';' 2022-01-22 17:00:45 +01:00
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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 means to alter decoded audio and video through a directed graph of connected 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.