[mythtv-users] Playback CPU Usage, SDTV, HDTV, Is this right?

[Alan Hagge]

Robert Johnston wrote:

>On Apr 6, 2005 4:02 PM, Kyle Rose <krose+mythtv at krose.org> wrote:
>  
>
>>>I was under the impression that with XvMC accelleration, it is
>>>possible to play back HDTV content on a 2Ghz processor (XP2000+ or
>>>higher)
>>>      
>>>
>>Original message:
>>
>>    
>>
>>>HDTV --> HD2000, dvb drivers, 720p source, using libmpeg2, no XvMC
>>>      
>>>
>>If he were using XvMC, he might be okay (assuming XvMC support has
>>become stable).  But he's not. :P
>>    
>>
>
>Then surely the very first thing that should be suggested is that he
>enable XvMC?
>
>And the .patch that was posted on the dev list, against CVS (Of 2
>hours ago), has made XvMC more stable (No crashing, though still got
>jittering)
>  
>
I can confirm that I'm getting smooth playback using XvMC on an Athlon 
XP 1700+ (overclocked to 2000+ speed), on a 4x AGP motherboard (~50% CPU 
utilization).  I'm using an FX 6600 GT, but my understanding is that its 
extra horsepower isn't used for XvMC, so a GeForce4 MX 440 should 
suffice.  One caveat:  I DO see stutter whenever the onscreen display 
(OSD) is up.  But as soon as it goes away, so does the stutter.  I 
haven't applied the aforementioned XvMC patches; I'm waiting 'til Monday 
to get 0.18 (per Isaac's prior post).  Hope this helps.