Hi IOhannes,

IOhannes m zmoelnig wrote:

> the problem is, that some pix-sources (platform dependent!) supply the
> images with (0/0) in the upper-left corner, whereas others (0/0) is the
> lower-left corner (like openGL expects it).

Would be good to know which platforms do it right, and which ones wrong.
Let me guess.....

It is actually the APIs which handle the images and video. Quicktime has the origin at the upper left while DirectShow is the lower left.