Well, maybe I´ve understood something. So
P-frames = Delta-frames ?
And in B-frames are saved the differences from the difference between a I-frame and P-frame right?
The thing about a header every 10 frames:
This sounds really intersting, because you can teoretically have a variable fps since the video is a group of loads of minivideos which are played together. Maybe it is possible to switch the codec avery ten frames (teoretically - maybe with fast pc that has a lot of ram).
A_Pleite