Alan Cox (alan@xxxxxxxxxx): > Converting NTSC/PAL is hard. Some of the DVD players do a good job and > they don't get jerking on a slow pan. I'm not sure how they do it, but > I'd guess someone is interpolating the mpeg motion vectors ? Now that I think about it, I bet they're using the cheap method of motion-blurring adjacent fields as shown with the Simpsons example on my web page: http://www.dumbterm.net/graphics/dvd/ Basically, you convert by keeping two clocks, one at 59.94fps another at 50fps, and if in your 50fps timeslice there's a switch from one frame to another in the 59.94fps clock, you show a 50-50 blur of the two frames. Quite sad, but very cheap to implement. -- Billy Biggs vektor@xxxxxxxxxxxx
