[MPlayer-DOCS] [PATCH] more detailed description of brd_scale

[Corey Hickey]

Michael Niedermayer wrote:
> odd dimendions _might_ work but are not recommanded in YV12
> do 3x3 luma samples have 1x1 chroma or 2x2 chroma?
> the correct awnser is 2x2 but width>>1 and height>>1 would end
> up with 1x1
> now if we try to convert some luma x,y to chroma by x>>1,y>>1 we would
> again need 2x2 chroma ...
> odd dimensions and YV12 works but its not a good idea, for decoding you have
> no choice, but for encoding you do, so if someone volunteers to maintain this
> / fix all related bugs fine, but i wont be that one

Ok, I get it now.

Here's a new patch with the correct explanation.

-Corey
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