Hello, you want to speed down 24fps to 23.976 fps?

I always need to speed up 23.976fps material to 25fps (PAL):
I use this videofilter:

-vf "setpts=0.95904*PTS" -r 25
(23.976/25=0.95904)

So maybe for your case this should work:
(24/23.976=1.001001001001)

-vf "setpts=1.001001001001*PTS" -r 23.976

But this only works with reencoding. But if you transcode from apple pro res to apple pro res the quality loss should be very small.

best regards
Christoph
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