I don’t know exactly how ffmpeg works… I have a mac but believe this can easily be done in any os…
Let’s say I have a 60i footage
Normally I could create a 30p footage by merging in someway the two fields that are present for each frame.
I would like to create 60p footage so to make either smooth progressive video or from there good 50% 30p slowmotion
To do this I need a script that works this way…
Upper Field of frame 1 + Lower Field of frame 1 merged to create frame ONE
Lower field of frame 1 + Upper Field of frame 2 merged to create frame TWO
Upper field of frame 2 + Lower Field of frame 2 merged to create frame THREE
Lower field of frame 2 + Upper Field Of frame 3 merged to create frame FOUR
Etc etc
This should produce good quality 60p with no extra interpolation than a normal deibterlace and the whole process should be very fast
siRoma di Marcello Mazzilli
Corporate video productions in Italy
http://www.siroma.com