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No interlacing to remove- so how do i change 29.97 to 24? (duplicate frames must go!)
I have here some film footage (aka 24 fps)that has been digitally transfered to 29.97 before it got to me. One of my tasks is to change it back to 24 fps on my output.
Now I am used to receiving footage that has been interlaced with a 2:3 pulldown, and know how to remove that.
This footage, however, has no evidence of interlacing. However, there are repeating frames throughout it.
How do I get rid of those frames accurately?
r
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3 Replies
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Can’t be certain, but it may be possible you received a single field export from, say an Avid, therefore removing pulldown on such low-res footage will be difficult or impossible.
If I’m right, you should ask the folks who gave you the footage to re-digitze it with a 2 field resolution so you may remove the pulldown.
Or…
The fields may have been merged somewhere else in the process.If you are currently doing prelim animations, you could either just use your best guess at pulldown removal, or use the “Posterize Time” plug-in to force the footage to 24fps. Doing that will create motion artifacting however.
Hope this helps.
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If you are working on a windows machine, you can easily remove the duplicate frames with AviSynth and the Decomb plugin.
This simple 2-line script would turn your 29.97fps footage to 23.976fps by removing the duplicate frames:
AviSource(“filename_here.avi”)
Decimate()If you need 24fps rather than 23.976 (23.976 is what DVD uses), then you can add the line:
ChangeFPS(24)AviSynth: https://avisynth.org/
Decomb plugin: https://neuron2.net/decomb/decombnew.html -
Never messed around with AviSynth- will try it out.
Thanks for the replies!
R
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