what version of the ffmpeg is compatible with the script? Or maybe some packages are missing on my system? Or maybe the libs should have been compiled with specific options added which wasn't the case with the Ubuntu? Tried to install libavfilter-extra additionally but it didn't help
ii ffmpeg 7:3.2.4-1build2 amd64 Tools for transcoding, streaming and playing of multimedia files
ii libavcodec57:amd64 7:3.2.4-1build2 amd64 FFmpeg library with de/encoders for audio/video codecs - runtime files
ii libavdevice57:amd64 7:3.2.4-1build2 amd64 FFmpeg library for handling input and output devices - runtime files
ii libavfilter6:amd64 7:3.2.4-1build2 amd64 FFmpeg library containing media filters - runtime files
ii libavformat57:amd64 7:3.2.4-1build2 amd64 FFmpeg library with (de)muxers for multimedia containers - runtime files
ii libavresample3:amd64 7:3.2.4-1build2 amd64 FFmpeg compatibility library for resampling - runtime files
ii libavutil55:amd64 7:3.2.4-1build2 amd64 FFmpeg library with functions for simplifying programming - runtime files
ii libpostproc54:amd64 7:3.2.4-1build2 amd64 FFmpeg library for post processing - runtime files
ii libswresample2:amd64 7:3.2.4-1build2 amd64 FFmpeg library for audio resampling, rematrixing etc. - runtime files
ii libswscale4:amd64 7:3.2.4-1build2 amd64 FFmpeg library for image scaling and various conversions - runtime files