On Mon, 3 Dec 2001, Billy Biggs wrote:
> > > Well for planar formats, 720 luma samples is 720 bytes, and that
> > > just doens't align nicely. But yes, if you're using 4:2:2, 720*2 is
> > > nice and round.
> >
> > I'm not following you. 720 luma is 128 bit aligned.
>
> 720/128 = 5.625
> 720/32 = 22.5
>
> So in a planar format where you have the luma plane, your 8bpp luma
> scanlines don't align nicely.
It's 720 BYTES not bits. 720*8/128 = 45.
Mark.
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