libavfilter-extra9 - 7:6.1.1-4+b4 main

FFmpeg is the leading multimedia framework, able to decode, encode, transcode,
mux, demux, stream, filter and play pretty much anything that humans and
machines have created. It supports the most obscure ancient formats up to the
cutting edge.
.
This library provides a generic audio/video filtering framework containing
several filters, sources and sinks.
.
This package replaces the libavfilter6 package and contains the
following additional filters:
.
* Optical Character Recognition (uses Tesseract)
.
Because this package links against libraries that are licensed under
Apache License 2.0, the resulting binaries are distributed under the
GPL version 3 or later.