> ----- Forwarded message from Flavio Villanustre <flavio@xxxxxxxxxxxxxxxx>
> -----
>
> From: Flavio Villanustre <flavio@xxxxxxxxxxxxxxxx>
> Subject: Re: xawtv 3.49 and Philips webcams
> To: Gerd Knorr <kraxel@xxxxxxxxxxx>
>
> really the format used by philips is called planar interlaced yuv420 with
> format:
>
> uuyyyyuuyyyy
> vvyyyyvvyyyy
> uuyyyyuuyyyy
> vvyyyyvvyyyy
>
> normal planar yuv420 is:
>
> uuyyyyvvyyyy
> uuyyyyvvyyyy
> uuyyyyvvyyyy
> uuyyyyvvyyyy
>
> while packed yuv420 is:
>
> yyyyyyyy
> yyyyyyyy
> yyyyyyyy
> yyyyyyyy
> uuuu
> uuuu
> vvvv
> vvvv
Stop! You´re mixing two things up: first, packed v.s. planar; I would
rather call it interlaced v.s. planar. Second, the YYYY bytes go first, then
UU and VV. I´ve never seen _any_ format that puts the chroma values first...
- Nemosoft
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