[XviD-devel] RE: possible vfw YV12 stride bug

[Christoph Lampert]

On Fri, 30 Jan 2004, Ivan Kalvachev wrote:
> ABSOLUTLY NO!!!
> 
> YV12 is YCbCr and accroding to mpeg standart the Chroma 4:2:0 blocks
> are coded in that order
> Y - 0,1,2,3
> Cb- 4
> Cr- 5
> 
> So, YV12 is the internal colorspace for MPEG. 

Aargh, Ivan, where does this information come from? 

The very link you gave in your earlier post says that according to 
Microsoft, 

YV12 == YCrCb
IYUV == I420 == YCbCr    <---- THIS is YCbCr, the internal MPEG CSP

I remember the last time I wanted to change it, but it looked it up 
first, so I didn't. Now this time I fell for it. 

Sorry guys!

chl