according to this:
http://www.mir.com/DMG/chroma.html
(SMPTE PAL-DV)
Cb & Cr are spatially displaced by one line per field.
Do we need to include this weirdness in our reinterpolation?
I tend to say, that there is always a slight chroma-shift in PAL-DV depending on the color.
arggggghhhhhhhhhhhhh!
I hate this crappy YUV420. I will never step behind the thoughts of those engineers.
All they did was causing confusion........