[mythtv-users] 1080i @ 800x600?

[matt mead]

What video card are you using?

The "offset picture" is an issue I have at 800x600 using an FX5200 made by Mad 
Dog Multimedia.  I have a patch for videoout_xv.cpp that will override the 
search for a suitable XV port by whatever is specified in an environment 
variable.  If I use this to set the XV port to the port the blitter is on, the 
scaling works properly and the picture is not offset.

Right now I have an eVGA 6200 in the backend/frontend that seems to scale 
everything properly to 800x600.

I did some playing around with mplayer when I first noticed this.  If I had 
mplayer use a software scaler to prescale the frames, then let XV do the rest 
of the scaling down to 800x600, it would work as expected up to about 
1620x(whatever is proportional for 16:9).  Once I exceeded a width of 1620 for 
what was sent to XV, the picture started shifting right again.

I can send the patch I use and you can try to apply it, recompile, and see if 
the blitter scales things properly.  You could also use mplayer to prescale the 
stream to various widths and see if XV can handle the rest.



-matt

Greg Mitchell wrote:
> I just got firewire recording working, and can play back 720p shows 
> without a hitch.  1080i shows seem to not be scaled properly for me, 
> resulting in some number of pixels being off the right side of the screen.
> 
> Has anyone used an SVGA display to display 1080i video successfully? 
> What are the gotchas that I should be looking into?
> 
> see 
> http://www.gossamer-threads.com/lists/mythtv/users/202729?search_string=pink;#202729
> for some background - the pink bars thing was an issue with my laptop 
> unrelated to the nvidia playback on my main be/fe.
> 
> Greg
> _______________________________________________
> mythtv-users mailing list
> mythtv-users at mythtv.org
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users

-- 
matt mead

http://collectivity.goof.com/