HW accelleration and CPU usage (2 Viewers)

robby3

Portal Pro
April 9, 2008
131
2
Home Country
Switzerland Switzerland
I've built a client-server environment and the setup works fine so far. The client is built with a GA-MA78GM-S2H, ADM 4250e 2x 2.1GHz, 2GB DDR-800 RAM running Vista 64. I have no problems with picture quality although I must admit that when viewing a HD SAT channel I'm not sure if this is 1080 or less. At it's really better than with SD channels.

Now I noticed that the CPU usage goes up to 77% on both cores when viewing HD channels. Unfortunately the CPU fan than increases speed what results in more noise. I expected the HW on the mobo to accellerate video and to take the work away from the CPU.

So how can I determine if HW accelleration is really enabled or active and what can be done to lower the CPU usage ?

Thanks
Rob
 

fiskerendk

Portal Member
September 25, 2008
10
0
I dont know your mobo actually.

But i will say that you problem is that you dont have a Hardware MPEG2/4 decoder.
Must likely the MPEG4(HDTV) decoder missing.
Therefore it uses a Software decoder and that is eating up your CPU.
 

strontium

Portal Pro
May 19, 2005
59
0
UK
Sounds to me like you don't have a decoder installed, as I have the same board and CPU and it hardly records any CPU usage when watching BBC HD.
Only a few codecs allow you to use H/W acceleration, I use powerdvd 8 ultra. The only free codec is MPC-HC, but I don't think that works with HD tv channels.
 

doornjoostje

Portal Pro
December 6, 2007
432
14
Home Country
Netherlands Netherlands
You can download a free 30 days trial for powerdvd 8 ultra.
Then newer use the powerdvd program itself and u can keep on using it. :)
 

robby3

Portal Pro
April 9, 2008
131
2
Home Country
Switzerland Switzerland
Thanks a lot :)

I'm using CoreAVC for H.264 and just learned that it does not yet support hardware acceleration. But I will play with its settings again. Actually the codec performs pretty well as I do not have any stuttering or so even with my relatively slow CPU. I wonder how well it may work when hardware support is available too.

I'll also check out PDVD8 ultra codec tonight to see how much hardware accelleration helps compared to the CoreAVC.

- Rob
 

stoked

MP Donator
  • Premium Supporter
  • December 14, 2007
    297
    8
    Home Country
    Canada Canada
    You can download a free 30 days trial for powerdvd 8 ultra.
    Then newer use the powerdvd program itself and u can keep on using it. :)


    Just copy the audiofilter and videofilter directories to another permanenet directory and uninstall powerdvd, then register the filter again with regsvr32 filtername. The other option is MPC-HC x264 decoder. It is free and actually is not as picky as PowerDVD codec. Note that no intermediary filters can be used otherwise you don't get hardware acceleration. Common filters would be ffdshow and directvobsub for subtitles.
     

    canarygsr

    Portal Pro
    October 23, 2007
    105
    2
    Melbourne
    Home Country
    I still dont DXVA with PDVD8 ultra, XPSP3,Cat8.9 and .Net2 SP
    If I have HA enabeled in Mediaportal config I just get a blank screen on HD Mpeg2, if I disable HA it works ok.
    the PDVD codec works ok either way with SD Mpeg2, can anyone tell me what im doing wrong.
    Its not all bad as it only uses about 33-40% cpu and 25fps but the picture could be a bit better :)

    I use EVR9,
     

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