HELP strange fps conversion (25->29.97->23.976->25)

[DrFresh]

Well I got a warning last time I posted this - being off topic they said.

I've got an avi, originating from a reg. 1 DVD. This DVD is in 29.970 fps, so is my avi. The source for the DVD is originally a British TV-show, that is PAL (25 fps or 50 fps interlazed). Now, I want it back to 25 fps as I live in PAL-land. I would normally do an Inverse Telezine, getting it down to 23.976 fps, and simply speeding it up to 25 fps (and dealing with audio elsewhere). That normally work with original 29.970 material.

I've tried doing all kinds of Inverse Telezine settings in VD, but the resulting 23.976 fps material get a strange "stutter" effect to the pictures. Can anybody help me with an idea to the settings - or suggest an alternative way to get it back to 25 fps.

Please HELP

[Guest]

Probably the material is not telecined, but rather is straight video. If so, you need to use a utility such as ChangeFPS in Avisynth, or Ole Hansen's ConvertFPS.

[hanfrunz]

Hello,

Neuron2 is right, if the original was a tv-show it was "filmed" with videocameras @ 25fps. I think the conversion to NTSC was done with a broadcast PAL->NTSC converter.

for example: http://www.videointernational.com/converters.cfm

That means there is no change in speed (24->25fps)

hanfrunz

[DrFresh]

Sorry - I don't quite get the meaning of the last answer?? I'm new on this.

But looking at ConvertFPS, I've made the following simple avs script, and it works. But could be done in a different way, perhaps faster?

My script:

LoadPlugin("C:\PROGRA~2\DVD2SVCD\SIMPLE~1\SIMPLE~1.DLL")
LoadPlugin("C:\PROGRA~2\DVD2SVCD\MPEG2Dec\mpeg2dec.dll")
AVISource("H:\Films\MONTYP~1\MO762D~1.AVI")
ConvertToYUY2()
Bob()
SimpleResize(480,576)
ConvertFPS(50)
SeparateFields.SelectEvery(4,0,3)
Weave()


I have to say that I feed this into CCE to produce an PAL SVCD mpeg video file. So perhaps I don't need the Bob() statement?

Thanks!

Dr. Fresh