AntcuFaalb said:
So the SPFX are 30p?
They certainly seem to be, but I can’t absolutely rule out there being some hybrid material. If I have the chance, I’ll have a look at some of the other NTSC discs.
If this is the case, what if we used motion compensation to generate 4 intermediate frames for every group of five and then drop the originals? This would give us the 4:5 ratio we need without jerky movement.
Motion-compensated frame-interpolation could certainly generate intermediate frames, but when you generate so many, the resulting video is riddled with artifacts. What you suggest is even worse than the typical use of frame-interpolation to double frame-rates, because – as you say – the originals are discarded, leaving no “clean” frames that might otherwise draw some attention away from the deficiencies of the interpolated ones. Tackling the effects sequences in this fashion presents similar problems to the ones discussed in this thread.
The only issue left, I think, is figuring out what to do between each group of 4 because the lack of an intermediate frame there will result in its own jerkiness.
That would negate any advantage frame-interpolation has over simple decimation of the effects sequences; however, it should be possible to use SVPFlow or SmoothFPS2 to generate frames at evenly spaced motion-increments without a gap. As you’ve probably realized, I don’t recommend it.
Great news!
Indeed! Your efforts are much appreciated, AntcuFaalb. 😃
EDIT: I trimmed out one of the effects shots and…
- a) recompressed it without changing anything (B5_orig)
- b) changed the frame-rate to 23.976fps with SmoothFPS2 (B5_new).