Vaporsynth pseudo "slow-mo"

[serg]

Using Avisynth I can produce "slow-mo" effect using the following settings:

- QTGMC +bob

- FrameRateConverter or MvToolsFPSmod with 96000/1001;

- "Custom" AssumeFPS(23.976) after AdjustFrameRate;

-  Change Speed or Interpolate frame rate 23.976;

https://mediaechelon.com/images/slow_mo_avisynth.mp4



Attempt to reproduce the same effect with Vaporsynth with suggested settings:



[*]set "Filtering->(De-)Interlace/Telecine->Deinterlace/Telecine Settings->Deinterlacer" "QTGMC (Vapoursynth)"
enable "Filtering->(De-)Interlace/Telecine->QTGMC Vapoursynth->Bob" (CHECK: calculated output frame rate and frame count should be doubled)
enable "Filtering->Vapoursynth->Other->Frame Interpolation"
set "Filtering->Vapoursynth->Other->Frame Interpolation" to "Interframe/SVP"
set "Filtering->Vapoursynth->Other->Frame Interpolation->FPS" to "95,9041" (adjust the other Interframe settings if you want) (CHECK: calculated output frame rate and frame count should be doubled)
enable "Filtering->Speed Change->Speed Settings->Change Speed"
set "Filtering->Speed Change->Speed Settings->Change Speed" to "23.976 / "10" or whatever frame rate you want your output to have

caused:
1. Output mp4 - Crashed with exit status 0 (Debug attached);
2. Output AVI (FFvHuff) - produces 23.974 stream with no "slow-mo" effect (Debug attached).