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| tymcode |
| Posted: Apr 5 2012, 09:31 PM |
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Newbie
Group: Members
Posts: 2
Member No.: 34626
Joined: 5-April 12
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I had a bunch of Super 8 film transferred to video. It was projected at 18fps and captured at 29.97. I want to restore it to 18fps, discarding all the duplicated frames.
After examining the video I've determined that there is a repeating pattern of frames (yes, frames -- there is no field differentiation; the video is 30p). If A, B and C are frames from the original film, I'm seeing this pattern in every group of 5 frames from the 30fps version:
A B B C C'
(C' is a nearly exact duplicate of C, except slightly blended with its neighbor. The blend is not on fields so I'm assuming it's something with the projector that caused this.)
Therefore, of every 5 frames I only want the first, second and fourth frames.
I am using a simple AVISynth script:
| CODE |
film=AVISource("z:\Users\jennings\movies\transfer\reel2\Reel2.avi", audio = false)
SelectEvery(film,5,0,1,3)
AssumeFPS(film, 18000, 1001, false)
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VirtualDub reports that the result is ~17.98 fps, which I want, but I'm still getting all five frames (I still get the duplicated B and the fuzzy C' frame) when I step through it in VirtualDub. I've experimented with more radical settings on the SelectEvery and there's no change, like it's commented out or something.
This seems pretty straightforward; can anyone see what I'm missing?
--Mike |
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| IanB |
| Posted: Apr 5 2012, 09:43 PM |
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Avisynth Team Member
Group: Members
Posts: 121
Member No.: 22295
Joined: 23-October 07
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| CODE | film=AVISource("z:\Users\jennings\movies\transfer\reel2\Reel2.avi", audio = false)
film=SelectEvery(film,5,0,1,3)
AssumeFPS(film, 18000, 1001, false) |
Or
| CODE | AVISource("z:\Users\jennings\movies\transfer\reel2\Reel2.avi", audio = false)
SelectEvery(5,0,1,3)
AssumeFPS(18000, 1001, false) |
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| tymcode |
| Posted: Apr 7 2012, 08:11 AM |
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Newbie
Group: Members
Posts: 2
Member No.: 34626
Joined: 5-April 12
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Oh, I see! Thanks, that worked great! |
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