[linux-dvb] Re: YPbPr output on TT fullfeatured cards ?

[ÿso-8859-1?B?SORt5GzkaW5lbiBKb3Jp?ÿjori.hamalainen@teliasonera.com>]

> -----Original Message-----
> From: bieber@iam-service.de [mailto:bieber@iam-service.de] 

> I recently investigated some "beamers" and highend TV's for
> their interfaces. Found composite, s-video, rgb (vga) and
> especially YPbPr (some with HDTV capabilities on this port).
> Best video quality would be achieved with RGB connection -
> unfortunately VGA-RGB does not like Scart-RGB in most cases.

Hi, and sorry for late answer.

At least my beamer supports also RGB input from Component input jacks.
Input format is switchable from setup-menu. I think (don't know :) it
should work because both modes are using embedded sync-signals, which
is sync_on_green/luminance.

> My question: would it be possible to develop a software solution
> to convince the dvb hardware to produce YPbPr output. E.g. add a
> new output mode and let the signal processor calc YPbPr instead
> of RGB on "his pins" ?  
> Just an idea ...

Also on hardware-wise there might be some conversion boxes, at least from
VGA -> YPbPr. But VGA is separate sync, so directly with this kind of box
you cannot do it. You need another box to separate syncs from color signals.

So MAYBE:
ffDVB/J2 -> sync_split -> VGA=>YPbPr -> Beamer

Or then try to use VGA-port of your beamer.. Beamers are more tolerate for
input signals than monitors are.
ffDVB/J2 -> sync_split -> Beamer

Best regards, Jori



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