Script for IVTCing Cartoon with mixed patterns

[casperg]

Hi All,

I am trying to IVTC a cartoon (NTSC - 29.97fps) but I found that it had two different patterns.

The first is the basic 3:2 pattern, and it appears in parts of the movie where there is fast action.

The other is like a 4:1 pattern - the first two frames are duplicates, the next two are also duplicates and the fifth one is interlaced. The frames are like A-A-B-B-C-D-D-E-E-F-G-G-H-H.... etc. I hope I explained that properly.

If I get the 3:2 part right, I am missing the 4:1 parts - and if I get the 4:1 parts right, I mess up the 3:2 parts.

Can anyone suggest how the avs script should be for this situation?

I was using Telecide, and tried TIVTC also but am new to that.

Any help/suggestions appreciated.

Thank you.

[manono]

Hi-

The first pattern you described is standard 24fps. The second one was drawn for 12fps. Animations are drawn/created at different frame rates, such as 30, 24, 18, 16, 12, or even 8fps. Assuming that you're making something from it that requires a constant framerate, such as AVI, then perform the standard IVTC. The 12fps parts are meant to have half the number of unique images, with dupes following each one.