[mythtv-users] CPU not enough to drive 1080P? Core2duo

Mark Hutchinson mark at onnow.net
Wed Feb 6 01:00:53 UTC 2008


On 5-Feb-08, at 5:52 PM, Robert McNamara wrote:

> It's very unlikely that this particular C2D will have the oomph to  
> play 1080p at anything over a low bitrate.  Yes, cue all the people  
> talking about how their lower-spec processor is able to play 1080p  
> stuff, etc., etc.   I have this argument in the IRC channel on a  
> near daily basis.  Stuff people download is *not* high bitrate and  
> tends to be around 10 Mbit/s.  Real 1080p material *starts* at about  
> twice that (18 Mbit) and Blu-ray's spec goes up to 40 Mbit/s.
>
> That said, it's very very very doubtful that anything you're getting  
> from television is 1080p.  It's far more likely that it's 1080i and  
> that material should be fairly easy for this machine to handle.  I  
> have heard rumblings about xv-blit being problematic with 8600  
> series nvidia cards.  Have you tried the OpenGL video renderer for  
> this material?  It may work much better in this case.  Since you are  
> running SVN, you need to have compiled with --enable-opengl-video,  
> and you can then adjust your playback profiles to make opengl the  
> renderer across the board.
>
> Let me know.

You are right, from the HD Settop box, it is 1080i.  Would it be  
better to get a better vid card ( not the 8600 ) or recompile?  If I  
do recompile, how do I enable that for playback profiles?  I am not  
familiar with that?

Thank you,

Mark


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