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Date: Tue, 19 Aug 2003 08:16:45 -0700
From: Luigi Rizzo <rizzo@icir.org>
To: Lars Eggert <larse@isi.edu>
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	from larse@isi.edu on Tue, Aug 19, 2003 at 08:10:54AM -0700
cc: multimedia@freebsd.org
Subject: Re: bktr card that does PAL+NTSC?
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On Tue, Aug 19, 2003 at 08:10:54AM -0700, Lars Eggert wrote:
> Hi,
> 
> can anyone recommend a TV card that works with the bktr driver, and 
> accepts both PAL and NTSC inputs? (Or do they all? My old one said 

They all work with both PAL and NTSC, at least when grabbing baseband
composite video. PAL decoding could make use of a 64us delay line
to compensate phase errors between adjacent lines, but the frame
grabbers just omit that optimization so the decoding process is
entirely in software.

The trouble could be if you are trying to receive PAL through the
tuner, because PAL and NTSC have different channel width and audio
subcarrier.

	cheers
	luigi

> "Philips NTSC tuner" during boot, and I never tried PAL.) Extra brownie 
> points if it can be obtained in the US :-)
> 
> Thanks,
> Lars
> -- 
> Lars Eggert <larse@isi.edu>           USC Information Sciences Institute
>