Using Quicktime on OSX and I think I'm doing something quicktime hates. I'm using a MovieSurfaceRef as a lookup texture and many times (hundreds) a frame I tell a quicktime movie to seek to a frame, which I then try to sample as a surface. I never actually ever tell the movie to play, just seeking.
It seems like I can do it when I access the frames in order, maybe because of some precision error that looks ok as long as it's not off too much, but when I try to sample from many different places in rapid succession it seems to make a lot of mistakes. I'm guessing seeking isn't instantaneous, but does anyone have workarounds? In the meantime also open to other formats or video players this might work better in. I'd love to avoid image sequences just to reduce how many files I'm messing with.