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. -- Ville Syrjälä [EMAIL PROTECTED] http://www.sci.fi/~syrjala/ _______________________________________________ directfb-users mailing list [email protected] http://mail.directfb.org/cgi-bin/mailman/listinfo/directfb-users
