On Mon, 21 Feb 2005, Steven Boswell II wrote:
> But I have an _interlaced 3-2 pulldown_ of a
> progressive frame. So 4:2:0 chroma line 1 will be
> an average of 4:1:1 chroma lines 1 and 3. I need...
Where'd you get the 4:2:0 from? y4mscaler? If so then the conversion
from 4:1:1 was done correctly (if not then drop Matt a line ;)).
Shouldn't be any need to flip any lines around.
Hmmm, I seem to remember your mentioning that yuvkineco not dealing
with bottom field first streams - is that what's behind the need/desire
to flip 4:1:1 lines around?
> Right, as soon as yuvkineco can handle 4:1:1, so
> that I can run y4mscaler *after* it instead of
> before it. But you're saying the 4:1:1 chroma line-swap is not needed?
That's what I'm saying ;) 4:1:1 isn't vertically subsampled and so
you should be able to (when yuvkineco handles 4:1:1) get a stream
with the pulldown reversed and be on your way.
Cheers,
Steven Schultz
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