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Marton Balint 2d32aed85c avdevice: use av_gettime_relative() for elapsed time calculations 
av_gettime_relative() is using the monotonic clock therefore more suitable for
elapsed time calculations. Packet timestamps are still kept absolute, although
that should be configurable in the future.

Related to ticket #9089.

Signed-off-by: Marton Balint <cus@passwd.hu>
2021-02-27 21:41:50 +01:00
compat compat/cuda: correct ushort4 to use ushort 2021-02-22 17:03:52 +01:00
doc avcodec/options: deprecate avcodec_get_frame_class() 2021-02-27 11:23:42 -03:00
ffbuild ffbuild/common: Make deletion of templates possible 2021-02-07 09:45:04 +01:00
fftools fftools/ffmpeg_filter: Don't use deprecated function 2021-02-26 18:28:26 +01:00
libavcodec avcodec/x86: add cfhdenc SIMD 2021-02-27 17:09:44 +01:00
libavdevice avdevice: use av_gettime_relative() for elapsed time calculations 2021-02-27 21:41:50 +01:00
libavfilter avfilter/avf_showcqt: use av_gettime_relative() instead of av_gettime() 2021-02-27 21:30:41 +01:00
libavformat avformat/matroskadec: Add webm file extension 2021-02-27 08:17:42 +01:00
libavresample
libavutil lavu/tx: do not invert permutes on MDCTs 2021-02-27 05:01:17 +01:00
libpostproc lavu/mem: move the DECLARE_ALIGNED macro family to mem_internal on next+1 bump 2021-01-01 14:14:57 +01:00
libswresample swresample/audioconvert: Fix left shift of negative value 2020-09-30 10:50:45 +02:00
libswscale swscale/x86/swscale: Remove unused ASM constants 2021-02-24 09:47:54 +01:00
presets
tests tests/api-band-test: simplify code 2021-02-25 11:46:28 +01:00
tools tools/target_dec_fuzzer: Adjust threshold for wavpack 2021-02-16 19:02:24 +01:00
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.mailmap mailmap: add entry for myself 2020-07-13 11:24:04 +08:00
.travis.yml
Changelog avformat: add Simbiosis IMX demuxer 2021-02-20 17:43:17 +01:00
configure Handle AVID MJPEG streams directly in the MJPEG decoder. 2021-02-25 11:46:28 +01:00
CONTRIBUTING.md
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LICENSE.md avfilter/vf_geq: Relicense to LGPL 2019-12-28 11:20:48 +01:00
MAINTAINERS MAINTAINERS: update names 2021-01-20 01:04:26 -06:00
Makefile tools/enum_options: fix build and add to Makefile 2020-11-20 15:20:24 +01:00
README.md
RELEASE RELEASE: We are after the 4.3 branch point, update for that 2020-06-10 00:20:24 +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.