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James Almer e3c4442b24 avcodec/libsvtav1: give svtav1-params priority over avctx values 
If the svt equivalent option to an avctx AVOption is passed by the user
then it should have priority. The exception are fields like dimensions, bitdepth
and pixel format, which must match what lavc will feed the encoder after init.

This addresses libsvt-av1 issue #1858.

Signed-off-by: James Almer <jamrial@gmail.com>
2022-04-07 12:15:39 -03:00
compat Replace all occurences of av_mallocz_array() by av_calloc() 2021-09-20 01:03:52 +02:00
doc doc/filters: add range/defaults for tile filter options 2022-04-07 15:56:43 +05:30
ffbuild Fix libversion.sh for split version headers, to unbreak shared library builds 2022-03-17 11:11:17 +02:00
fftools fftools/opt_cmdutils: fix printing known channel layouts 2022-03-25 08:42:45 -03:00
libavcodec avcodec/libsvtav1: give svtav1-params priority over avctx values 2022-04-07 12:15:39 -03:00
libavdevice avdevice/dshow: fix regression 2022-03-29 23:25:33 +02:00
libavfilter avfilter/f_ebur128: multiply in integer first, before dividing in float 2022-04-07 16:37:51 +02:00
libavformat avformat/mpegenc: Fix ever growing FIFO and infinite loop on error 2022-04-05 21:52:11 +02:00
libavutil libavutil/hwcontext_vaapi: Re-enable support for libva v1 2022-04-06 17:12:26 +08:00
libpostproc Keep including the full version.h when headers are included externally 2022-03-19 00:01:57 +02:00
libswresample swresample/rematrix: fix typo in clean_layout() 2022-03-28 00:07:42 -03:00
libswscale Keep including the full version.h when headers are included externally 2022-03-19 00:01:57 +02:00
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tests tests: use a filtergraph script for fate-mov-channel-description 2022-04-05 21:25:26 -03:00
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Changelog lavfilter: Add SITI filter 2022-04-01 20:27:43 +02:00
configure avcodec/bsf: Add FFBitStreamFilter, hide internals of BSFs 2022-03-23 23:45:45 +01:00
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LICENSE.md avfilter/vf_geq: Relicense to LGPL 2019-12-28 11:20:48 +01:00
MAINTAINERS MAINTAINERS: add myself as maintainer for libsrt protocol 2022-04-01 09:21:50 +08:00
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RELEASE Bump Versions before release/4.4 branch 2021-03-20 01:01:12 +01:00

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 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.