MPEG2 to DV25 field ordering problem

[jayradhart]

Hi all,

I have recently been given some SD MPEG2 files that I need to re-encode into an Avid Media Composer friendly format. I always use Avanti to convert pretty much anything to DV25 so that was the first thing I tried. This did not work because the dominant field of MPEG2 is upper field first but the dominant field of DV25 is lower field first so it looked really screwy (i.e. the fields jumped forwards and backwards as you scroll through)! So I tried a basic AVISynth "swapfields" script but this still doesn't solve the problem. It doesn't look as bad but looks very jerky (like it's been film effected) when imported into avid.

I have also tried using Virtualdub and the Reverse Field Dominance filter to move the whole frame up one field but this still produces the jerky effect when imported into Avid. The fields are definitely in the right order temporally because I can skip through the footage field by field and it is not jumping back and forward, so I know that is right at least.

Does anyone have any ideas because I'm starting to lose my mind after three days of trying to get this to work?!!!

Regards

[filmboss80]

You already started this topic elsewhere:

https://forum.videohelp.com/topic371452.html

Be mindful of the forum rules.