The libavfilter library provides a generic audio/video filtering framework containing several filters, sources and sinks.
ffmpeg, ffplay, ffprobe, ffmpeg-filters, libavutil, libswscale, libswresample, libavcodec, libavformat, libavdevice
The FFmpeg developers.
For details about the authorship, see the Git history of the project
(https://git.ffmpeg.org/ffmpeg), e.g. by typing the command
git log in the FFmpeg source directory, or browsing the
online repository at https://git.ffmpeg.org/ffmpeg.
Maintainers for the specific components are listed in the file ‘MAINTAINERS’ in the source code tree.