swap field order in avisynth

[marcorocchini]

Hi cats,

please I have to tell to avisynth: if source is BFF please reverse field order

is there a way? thanks

[adom]

AssumeTFF

[marcorocchini]

thanks but I wonder: I have to do a script that recognize

IF source is BFF -----then--->ReverseFieldOrder()

I need of an avisynth command that recognize if source is TFF or BFF, and only if is BFF apply the ReverseFieldOrder()

[poisondeathray]

Avisynth assumes BFF for everything by default, unless otherwise specified. It cannot determine actual field order of the source content automatically, although some source filters might pass some flags that might or might not be accurate