30 to 23.976?

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30 to 23.976?

Postby Enigma » Mon Oct 18, 2010 8:48 pm

Just wondering if i could get any help on getting a 30fps(don't even ask why it's 30fps :oops: ) down to 23.976 while maintaining sync :P
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Re: 30 to 23.976?

Postby Zarxrax » Mon Oct 18, 2010 9:20 pm

Well we do need to ask why it's 30 fps. Because the reason affects your choices for getting it back to 23.976fps.
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Re: 30 to 23.976?

Postby Enigma » Mon Oct 18, 2010 9:38 pm

It's a video with someone, he made his footage 30 fps, and we plan on finishing it..but my footage is 23.976
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Re: 30 to 23.976?

Postby Zarxrax » Mon Oct 18, 2010 10:40 pm

Well what i mean is, it depends HOW the video was made 30fps.

For instance if it was deinterlaced, it might have a lot of blended frames, and you could try getting rid of those.
If it was field matched but not decimated, then you would want to decimate it.

The simplest solution is to do ChangeFPS("ntsc_film")
But this is not a good solution because it just drops frames. You see, if he converted it to 30fos by generating extra, ugly frames, and then you do this and it drops "real" frames, its not a good solution.
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Re: 30 to 23.976?

Postby Enigma » Mon Oct 18, 2010 10:58 pm

What he did was just AssumeFPS(30), i believe.
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Re: 30 to 23.976?

Postby Zarxrax » Mon Oct 18, 2010 11:02 pm

There probably isn't any ideal way to handle it.
I would suggest using

Tdecimate()
ChangeFPS("ntsc_film")

That will at least try to search for duplicates or similar frames, before dropping random ones, which should hopefully help with the motion.

Maybe someone else can suggest something better.
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Re: 30 to 23.976?

Postby mirkosp » Mon Oct 18, 2010 11:44 pm

I'd personally slap your buddy and make him re-edit at the proper framerate, or otherwise you could speedup and re-edit your part at his. I'm positive neither of you is lazy enough to compromise the smoothness of your AMV for a bit less of effort.
Or perhaps, if there is no transition between the tracks, but just hard cuts, you might want to give VFR timecodes a chance. :ying:
As a last resort, I'd convertfps(23.976) his footage... blending isn't nice, but it is smoother than random frame drop. See what looks better in motion (if you go for the frame drop, use zarxrax's suggestion, as that might give a somewhat smoother result than just changefps, even if only a little).
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Re: 30 to 23.976?

Postby Mister Hatt » Thu Oct 21, 2010 1:51 am

What the flying fuck Zarxrax and mirko, he said the guy used AssumeFPS, so why would you use ChangeFPS on that?! Assume just says "play faster/slower" so you can drop it back to what it was supposed to be and then process it properly. Altneratively VFR is your friend etc.
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Re: 30 to 23.976?

Postby Cannonaire » Thu Oct 21, 2010 2:12 am

Mister Hatt wrote:What the flying fuck Zarxrax and mirko, he said the guy used AssumeFPS, so why would you use ChangeFPS on that?! Assume just says "play faster/slower" so you can drop it back to what it was supposed to be and then process it properly. Altneratively VFR is your friend etc.


I believe he meant assumefps was used prior to editing, and now that it is synced to audio at that frame rate, you can't just assume it back without messing up the sync. :? I would go with Zarx's suggestions.
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Re: 30 to 23.976?

Postby mirkosp » Thu Oct 21, 2010 5:22 am

ITT: Hatt forgets this is an AMV forum.
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Re: 30 to 23.976?

Postby Cannonaire » Thu Oct 21, 2010 6:04 am

Saa...

:P
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Re: 30 to 23.976?

Postby Mister Hatt » Thu Oct 21, 2010 7:20 am

Wait you guys are making an AMV? :V
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