[FFmpeg-devel] [PATCH]Interpret 16bit 4:4:4 as rgb48

[Michael Niedermayer]

On Thu, Jan 12, 2012 at 11:35:43PM +0100, Jean First wrote:
> 
> 
> On Thu Jan 12 22:15:50 2012, Paul B Mahol wrote:
> >On 1/12/12, Carl Eugen Hoyos<cehoyos at ag.or.at>  wrote:
> >>Alex Zhukov<zhukov.alex<at>  gmail.com>  writes:
> >>
> >>>On Thu, Jan 12, 2012 at 12:11 PM, Carl Eugen Hoyos wrote:
> >>>>
> >>>>jasper and OSX preview interpret jpeg2000 encoded with -pix_fmt yuv44p16
> >>>>(and
> >>>>-pix_fmt rgb48) as rgb48.
> >>>>
> >>>>Please comment, Carl Eugen
> >>>
> >>>most of j2k image viewers i have seen have no idea about yuv so they
> >>>will all treat a 3 component j2k as rgb regardless of precision
> >>
> >>I see.
> >>So should we treat YUV444P16 as RGB48 or not?
> >
> >Leave it as it is.
> 
> I'd prefer it to be RGB48.

> Or as it cannot be distingushed add a log
> message.

the KLT of the 3 sample triplets should be closer to the identity
transform if its YUV than RGB for real world pictures


[...]
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Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

The misfortune of the wise is better than the prosperity of the fool.
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