OK, so it's quite sure that converting from VFR to CFR
can't be done by VD or a filter of VD.
Doing the conversion external (for example by the mentioned
avisynth methods) seems to have several drawbacks.
If I want to avoid frame interpolation (due to quality loss)
and do the least common multiple fps I need absurdely high fps.
And even if that would do, than there are your arguments due
to the filters effects on double frames.
So, IF (I'm still not sure about that!) DeShaker will produce
wrong/ bad results on non-linear timeline, then the only way
would be to have DeShaker use the timeline.
???
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