On Jan 9, 2006, at 5:04 PM, Steve Adeff wrote: > On Monday 09 January 2006 17:31, Curtis Stanford wrote: >> On Jan 9, 2006, at 3:21 PM, Steve Adeff wrote: >>> On Monday 09 January 2006 16:58, Curtis Stanford wrote: >>>> On Jan 9, 2006, at 2:49 PM, Steve Adeff wrote: >>>>> On Monday 09 January 2006 16:35, Kevin Kuphal wrote: >>>>>> Adam Propeck wrote: >>>>>>> Here is some more detail. ( Xrog.conf and some hdparm info) I'm >>>>>>> wondering if livetv isn't playing well because of the specific >>>>>>> firewire port/driver? I'm using the single port that comes with >>>>>>> the >>>>>>> audigy 2 PCI card I'm using. Also, I guess I was wondering if I >>>>>>> need >>>>>>> to do anything specific with the fact that I'm using an Nforce 3 >>>>>>> motherboard. Any tweaks that are recommended? Thanks, -Adam >>>>>> >>>>>> I think the problem is that fundamentally, the ATI driver does >>>>>> not >>>>>> provide hardware accelerated MPEG-2 playback and your Sempron >>>>>> cannot >>>>>> handle the software decoding without choking. If you had an >>>>>> Nvidia card >>>>>> that supported XvMC you could enable that which would activate >>>>>> the >>>>>> hardware decoding and probably give you the performance you >>>>>> expect. >>>>>> >>>>>> Kevin >>>>> >>>>> I'm going to have to agree, unless someone else is running a >>>>> Sempron 3100 and >>>>> able to do live HDTV I'm going to have to think this is the >>>>> case. I >>>>> know my >>>>> Athlon64 3200+ has no room to spare playing live HD, I can easily >>>>> imagine a >>>>> Sempron of lower clock speed having more trouble. >>>>> LiveTV requires a bit more resources from mythbackend and >>>>> mythfrontend from >>>>> what I've noticed. >>>>> >>>>> -- >>>>> Steve >>>> >>>> That seems like a lot of power! I'm decoding HD (live and recorded) >>>> on an old 2.4G Pentium4. Using the nvidia driver without XVMC I'm >>>> seeing about 50% CPU usage. An Athlon64 3200+ should kick my >>>> butt. Or >>>> is it an ATI problem?? >>>> >>>> Curtis >>> >>> weird, I've got an nvidia card. I'm using top and showing that >>> mythfrontend+Xorg ~70-98% cpu usage for live and recorded 1080i >>> playback, it >>> could be that my output is 1280x720 since nvidia can't do >>> interlaced output >>> over DVI. Its much lower for 720p playback. I bet thats it, >>> resizing... >>> >>> -- >>> Steve >> >> Yes, my TV only does 720p. > > strange, I don't know. what version nvidia driver? what xorg version? > maybe its that I'm running Debian64? > > any others with Athlon64 3x00+ care to chime in? >
I'm using xorg-6.8.2 and the latest nvidia driver. I'm playing a 1080i stream right now down converting to 1280x720 and getting 35% CPU usage. Kernel is 2.6.14.2 on a 2.4G P4. Curtis _______________________________________________ mythtv-users mailing list [email protected] http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
