|
Can this be used to keep the 2nd copy of a set of repeating frames? There's a few cases for this. For one thing, imagine 24fps film encoded to 720p60. There's up to 3 repeated frames, but because of the encoding, the first in the sequence is low quality, and it's better to get the frame after, where the P frame is correcting the last I frame.
Another case is pulldown. I'd like to average the two repeating fields for better quality. Another use is dot crawl; if you average the same image on two frames it perfectly removes dot crawl, as if it were s-video. There was one other use I can't remember.
|