On Saturday 26 November 2005 19:56, Ville Syrjälä wrote: > On Sat, Nov 26, 2005 at 07:05:44PM +0000, Laz wrote: > > This is probably a very long shot... > > > > Does anyone know if it's possible to convince the second head of a Matrox > > G450 card to send out WSS signals in the output so that automatic 4:3 / > > 16:9 switching of a TV can be used? I believe that WSS switching is > > possible with dxr3 cards containing the adv7170 encoder but not those > > with a bt865 encoder! > > > > Just wondering whether the hardware has the capability or not, or whether > > it just hasn't been implemented yet or not! > > AFAIK the WSS signals occur during the horizontal blanking period > (someone correct me if I'm wrong) so with the current setup they would > have to encoded in the TV-encoder. There are no specs for the TV-encoder > > :( > > I once pondered about configuring CRTC2 so that there would be no > blanking periods and instead set up the data in the memory to include > the timing codes and whatnot. If the hardware would work with that kind > of setup (of which I'm not so sure) you would have total control over > the contents of the digital blanking periods. However even that would > not guarantee anything because the TV-encoder might just ignore the > data. But it might be an interesting thing to try nonetheless.
I thought that was probably the case. Hmmmm...maybe I'll have a go at bodging something onto a serial port which uses the switching on the SCART socket instead... :) Cheers, Laz _______________________________________________ directfb-users mailing list [email protected] http://mail.directfb.org/cgi-bin/mailman/listinfo/directfb-users
