delay field - progressive video

[ntropy]

I have PAL video of a film transfer where the frame changes happen on field two:

frames 1 1 2 2 3 3 4
fields 1 2 1 2 1 2 1 2

How do I make a progressive frame sequence from this (and not lose resolution by discarding half the fields)?

[Guest]

TFM() or Telecide().

[stickboy]

frames 1 1 2 2 3 3 4
fields 1 2 1 2 1 2 1 2I don't understand what that means.

But if you want to delay a field, you can reverse the field dominance. You can you use my JDL_ReverseFieldDominance (http://www.avisynth.org/stickboy/) function or use Simon Walters' plug-in (http://www.geocities.com/siwalters_uk/reversefielddominance.html), although they behave a little differently.

[Guest]

He said the change comes between fields, i.e.:

A B C D E ...
B C D E F ...

That's a classic field matching application. Reversing the field dominance won't put the correct fields back together.

[Mug Funky]

or perhaps doubleweave().selectodd() could do it?

field-matching is the easiest and probably the best method, but if there's actual interlaced video in the stream i'm not sure whether it'd pass through the original frame or swap fields around unpredictably, which would effectively mean random frames have wrong field order (neuron2 would have a better idea of what's likely to happen here...)