软件包：libavfilter-extra（7:4.3.6-0+deb11u1）

FFmpeg library with extra filters (metapackage)

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 metapackage depends on the latest version of the libavfilter variant that offers additional filter support. Application packages can depend on it if they require or suggest this variant in a robust manner.

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