How to convert 20 fps OGM file to MPEG-2?

[rs008f]

I have an OGM file which I extracted the video(XVID), audio(OGG) and subtitle file(SRT). The video and audio is 20 fps. Is there a way to convert it to 23.976 fps and keeping the audio and subtitle in sync?
I tried using assumefps(23.976, true) since this is what I used to convert 25 fps to 23.976 fps, but it made the 20 fps video shorter/faster. I used besweet to change the fps from 20 to 23.976 which resulted in the chipmunk effect; the audio became faster.

[RB]

Frame rate conversion is better discussed in the AVISynth forums. About the audio I suggest you post in the audio encoding forum.

/Moved from CCE forum

[scharfis_brain]

how did you produce that 20fps file?

this framerate is really weird and often occurs when leaving
>> Field operation -> Forced FILM <<
in DVD2AVI checked on PAL DVDs.

If that's the case, I suggest doing a new transcode...

I think, that this file stutters a lot, too...

[manono]

Hi-

If your goal is to make an SVCD or DVD, then you can also run pulldown off of a 24fps .mpg. One way to get to 24fps (although not necessarily the best way) is with ChangeFPS(24). That way the video stays the same length and the audio doesn't have to be stretched. You can also do this in VDubMod without reencoding by going Video->Framerate->Convert to FPS 24.

And if I'm wrong, I'm sure I'll be corrected.

[rs008f]

someone gave me this advice.
The trick is that 20fps is really a 3:2 pulldown from 25. For the audio use BeSweet to change it from 25 FPS to 23.976 FPS.
AssumeFrameBased
SeparateFields
SelectEvery(8, 0,1, 2,3,2, 5,4, 7,6,7)
Weave
#At this point your AVI will be 25fps.
AssumeFPS(23.976)

this one works, the video and audio are in synch although the original 23 min video becomes 24 min but I don't really notice much of a slow down.