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908 posts

Ultimate Geek

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  #277661 30-Nov-2009 07:30
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Yes, but what codec are you using with Media Portal? The problems are related to HA on the cards, enabling software decoding with Windows 7 Media Center 'solves' it, but no-one wants to use 60% CPU when the card should be able to do it in hardware.







292 posts

Ultimate Geek


  #277671 30-Nov-2009 08:08
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gbwelly: Yes, but what codec are you using with Media Portal? The problems are related to HA on the cards, enabling software decoding with Windows 7 Media Center 'solves' it, but no-one wants to use 60% CPU when the card should be able to do it in hardware.


A long time ago I chose the Powercinema 6 codec because it provided the best visuals with working hardware acceleration. Because I use this codec for PVR in mediaportal, and Powercinema for DVD playback, I paid cyberlink for a powercinema 6 upgrade from the 5.1 version that came with the HVR2200.

The codec calls itself PCM H.264 or somesuch.




HTPC: Antec Fusion 430, Gigabyte GA-MA78GPM-UD2H F7, AMD X2 4850e, Sapphire 4670 1GB, Corsair 4x1Gb,  Adata 128Gb SSD, WD10EARS Green, LG GGC-H20L Blu-ray, Hauppauge NOVA TD-500, Logitech z-5500, Logitech Harmony 525, Samsung LA40B530 1080p, Vista Premium-32 SP2, Catalyst 10.12(Facelift preview), Mediaportal 1.2.3+OneButtonMusic, AC3Filter, Cyberlink Powercinema 6 codec, BLU-RAY: Samsung BD-F7500

 
 
 
 


2889 posts

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  #277743 30-Nov-2009 11:09
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Well my experience (setting up brother's HTPC) was HD3200 + HT3 CPU + Win7 MCE + MS H264 Codec + Freeview DVB-T (All channels, not just interlaced) = Stuttering pictures, exacerbated whenever the OSD came up, and CPU useage ~10% with regular spiking to 60%, suggesting that hardware acceleration may not of been working properly. This was worse on TV3 1080i, but occured on the progressive channels too.

I then changed h264 codec to PDVD8 H264 Codec and changed audio to FFDSHOW.  After this change CPU useage no longer spiked and stayed under 10%, the picture was smooth, and stayed smooth whenever the OSD came up.

I assume that the problem was the MS codec and not the audio one. So in this situtation sounds like Win7 MCE + MS H264 Codec + ATI gfx + Freeview not happy playing together.




HTPC / Home automation (home assistant) enthusiast.


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