Download and install the latest AviSynth+ (with vcredist)
https://github.com/AviSynth/AviSynthPlus/releases
Download the latest MvTools
https://github.com/pinterf/mvtools/releases
Extract x64
from the archive (DePan.dll, DePanEstimate.dll, mvtools2.dll) to C:\Program Files (x86)\AviSynth+\plugins64\
(adjust the avs script if avisynth is not installed in this directory)
In PotPlayer:
Preferences
-> Filter Control
-> Video Decoder
-> Built-in Video Codec/DXVA Settings
-> Use DXVA
-> Checked
-> DXVA2 Copy-Back
-> Select D311 with the GPU
-> Avisynth
-> Enable AviSynth processing
-> Checked
-> Add "potplayer_source()"
-> Checked
-> Leave other checkboxes on default
-> Load Script
-> Select or copy the avs script below
avisynthplus_motion_interp.avs
SetMemoryMax(512)
SetFilterMTMode("DEFAULT_MT_MODE", 2)
SetFilterMTMode("FFVideoSource", 3)
potplayer_source()
LoadPlugin("C:\Program Files (x86)\AviSynth+\plugins64\mvtools2.dll")
super=MSuper(pel=1, hpad=0, vpad=0)
backward_1=MAnalyse(super, chroma=false, isb=true, blksize=32, blksizev=32, searchparam=3, plevel=0, search=3, badrange=(-24))
forward_1=MAnalyse(super, chroma=false, isb=false, blksize=32, blksizev=32, searchparam=3, plevel=0, search=3, badrange=(-24))
backward_2 = MRecalculate(super, chroma=false, backward_1, blksize=8, blksizev=8, searchparam=0, search=3)
forward_2 = MRecalculate(super, chroma=false, forward_1, blksize=8, blksizev=8, searchparam=0, search=3)
MBlockFps(super, backward_2, forward_2, num=60, den=1, mode=2)
Prefetch(4)
@edjdavid I wanted to thank you for sharing your research and discovery of using this technique within PotPlayer to do frame motion interpolation. I was searching the internet, far and wide, for a free technique to actually do this within a media player. Literally every other solution I found is either not free, or requires a video card from a specific manufacturer, or does not work in real time and must be transcoded. Your solution literally seems to be the only way to do it for free with no other major requirements. Again, I am very grateful for your work and time investment to share this with us.