14.07.2020, 01:07

(Have no idea which is more stable MVTools v19 or MVtools v20)
Put and replace libmvtools.dylib plug-in in /Library/Frameworks/VapourSynth.framework/lib/vapoursynth
Put libfftw3f_threads.3.dylib and libfftw3f.3.dylib dependencies to /Library/Frameworks/VapourSynth.framework/lib