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Date: Sat, 17 Jan 2004 02:19:04 -0800
From: Brian Rogers <burpmaster@truffula.net>
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Subject: Re: Brooktree video-in on GeForce 4?
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Jason Andresen wrote:

> Brian Rogers wrote:
>
>> I have an MSI GeForce 4 Ti 4400 with dual VGA, TV-out, and TV-in.  I 
>> currently have the first two of the three features working, but I 
>> haven't been able to get any capture devices detected.  From my 
>> reading, it looks like the brooktree chipset is used by almost 
>> everything that has a TV-tuner or video in, but I can't be sure if 
>> that's what's in my 
>
> That's almost right.  The correct phrase is: "it looks like the 
> brooktree chipset is used by almost everything FreeBSD supports".  In 
> particular, the BT8x8 chipset is rarely used on video cards with 
> TV-in, with the manufacturers almost always opting for their own TV-in 
> chips.
>
>> card.  Does anybody know for sure what chip this card has, or how I 
>> can find out?
>
> Sometimes the documentation for your card will specify which chipset 
> it has, but I woudln't hold out much hope for it being supported in 
> FreeBSD.  I didn't see anything in your dmesg that jumped out at me as 
> a possible video capture device (it will most likely show up as an 
> unknown PCI device).

It doesn't look like it shows up as a PCI device, but I figured out what 
it is.  I noticed this in my XFree86 log file:
(--) NVIDIA(0): Detected TV Encoder: Philips 7108

That apparently does both TV-out (which is why XF86 had something to say 
about it) and TV-in.  I found a Linux driver at 
http://rivatv.sourceforge.net/.  I wonder how hard it would be to port 
this...