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I want to use ocv filter. The documentation says
To enable this filter, install the libopencv library and headers and configure FFmpeg with --enable-libopencv .
I use ffmpeg from Ubuntu repos. It was configured with --enable-libopencv. Which package I should install in Ubuntu 18.04? It has many packages called *libopencv**. Should I build ffmpeg from source to make this filter usable?