2:2:2:4 Cadence Inverse?

[mionis]

I've got a NTSC file w/2:2:2:4 cadence. I would like to inverse this and have it playback at 23.98 without de-interlacing it. Is this possible w/AVISYNTH?

Thanks

[Guest]

If that is a field cadence, then it is equivalent to this frame cadence:

ABCDD

So you can simply use Decimate(5). If that does not work, then post a link to an unprocessed sample.