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Old 5 Mar 2003, 10:14 PM   #1
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Unhappy frame conversion picture jumpy

hi guys i'm kinda new at this so bare with me. ok i have 2 divx avi files which i have joined together to get the complete movie. This works fine its in 640x272 23.976fps. I want to convert it to 720x576 at 25 fps. I have tried tmpgnec and the result is a jerky movie i have also tried virtualdub and the same thing happens.

HELP PLEASE!!!
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Old 5 Mar 2003, 10:30 PM   #2
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I'm curious; why do you want to convert a movie that already works to a larger resolution and a faster fps?

Your problem is probably because when you increased the fps, there weren't any frames to take it's place; those extra frames have to come from somewhere.

edit >> how jerky is it? Is it just a slight constant annoyance, or does the movie freeze for a second every once in awhile, etc.?
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Last edited by t3ch; 5 Mar 2003 at 10:33 PM
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Old 5 Mar 2003, 10:33 PM   #3
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not sure what you mean m8. the movie is in 640x272 at a frame rate of 23.976 and i want to convert it to 720x576 (pal) at 25 fps

i think thats right or am i thick and have got it all wrong?

constant slight jerky
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Old 5 Mar 2003, 10:42 PM   #4
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So why is it you want to do that, anyways?

OK, you're increasing the fps to 25 from 23. It's not like a .d2v or .avs file where you have the original source at your disposal. The divx encode only has those 23 frames. When you add an extra 1.24 frames (23.976 ), the divx movie doesn't have any frames to replace it with; see what I'm saying? So instead of actually increasing the framerate, what I imagine it does is just use the last frame twice. So a second would look like

frame1
frame2
frame3
......
frame23
frame24
frame24

So your movie would actually be playing the way it's supposed to be, it's just you're seeing that frame twice.
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Old 5 Mar 2003, 10:43 PM   #5
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This guide will be very helpful.


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Old 5 Mar 2003, 10:49 PM   #6
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ok i get what you are saying. so how do i convert it to pal?

thnx i will read the guide
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Old 5 Mar 2003, 11:15 PM   #7
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AviFrate will change it, but then the audio might come out of synch. You probably have to reencode the audio to get synch back. (BeSweet can change durations of audio)

AVIFrate
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