On Sunday 01 January 2006 12:56, Rob wrote: > Got a question for those of you running 3ghz processors [b]without[/b] XvMC > decoding 1080i and deinterlacing successfully. What is your secret? I've > tried 3 different machines with 3ghz (or close to it), and none of them > come anywhere close to being able to do 1080i video smoothly in Myth. I'm > running Deban and have built Myth and have tried optimizing it for the > processor I'm using and such, and it never seems to matter. The OSD is > the worst offender by far, when that is up it's jerk city. 1080i video > sometimes managed to get by at full framerate and sometimes doesn't, it's > inconsistent. > > Now, I can enable XvMC and everything plays back perfectly smooth, but as > noted by most FAQs, the OSD is in black and white, sometimes flickers > badly, and causes the screen to jerk. Once it goes away everything works > okay. Most of the FAQs and posts I've read from people seem to indicate a > 3ghz processor is plenty of horsepower to do 1080i without xvMC. Why does > it perform so badly on my system? I think perhaps if I can find my > performance problem even xvMC will work work better. > > I apologize if this is in a FAQ or has been discussed ad nauseum, but I've > been at this for over a week and haven't found anything. > > Video card is a FX5200 > Nvidia 7676 driver > Currently testing with P4 3ghz, but have also tried Athlon 2800+ > > Things I've tried: > > Open GL overlay (does this even work with NVidia drivers?) > MPEG2Dec decoder (seems to make it worse) > Various deinterlace modes - performance is just as bad with it "off" > Sync to video > Myth "stable" version 18.1 and the SVN head > > Any help greatly appreciated.
AMD Athlon64 3200+ standard decoder, extra audio buffering, kern deint. plays back fine considering I'm outputting as 720p (stupid tv...) even for 1080i, occasionally I see what looks to be missed frames, but when I playback on a monitor its fine so its something to do with the tv... -- Steve _______________________________________________ mythtv-users mailing list [email protected] http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
