[mythtvnz] Mini-itx vdpau motherboards?

[Douglas Pearless]

Yep, you correct, I had an error in my maths! :-)

Nick Rout wrote:
> The goss seems to be that if you are using vdpau then the PCI bus is
> more than sufficient for the task, because you are pushing the
> compressed video stream to the card.
>
> Bluray disk movies have a max bitrate of 54Mbits/sec
> (http://en.wikipedia.org/wiki/Bluray). Most HiDef stuff you get will
> have a lower rate.
>
> PCI has a max rate of 133MBytes/sec
> (http://en.wikipedia.org/wiki/PCI_Local_Bus) )note 133 M /BYTES/ vs 54
> M /BITS/.
>
> Even with real PCI rates being half the maximum there is still plenty
> of room to push the video stream over PCI to the graphics card, by a
> factor of more than 10.
>
> If you don't believe me there are plenty of examples of people having
> very good results with PCI and vdpau.
>
> Cheers.
>
> 2009/3/18 Douglas Pearless <Douglas.Pearless at pearless.co.nz>:
>   
>> I suspect that you will not find any as I note the bandwidth of the old PCI
>> bus may not be sufficient to transfer all the data to the required NVIDIA
>> graphics card in a timely manner...
>>
>> You may be far better to wait for the NVIDIA ION platform to generate a real
>> product for a (diskless) mythtv frontend.
>>
>> Cheers
>> Douglas.
>>
>> Quoting "Craig Whitmore" <lennon at orcon.net.nz>:
>>
>>     
>>> On Wed, 2009-03-18 at 16:11 +1300, Nick Rout wrote:
>>>       
>>>> Having failed to find easy access to a PCI vdpau capable video card in
>>>> NZ I though an alternative might be to find a mini-itx sized vdpau
>>>> compatible motherboard, ie with onboard nVidia graphics.
>>>>
>>>> Rather than spend more hours searching for the grail, can anyone point
>>>> out such a motherboard from a NZ retailer (online or in ChCh).
>>>>
>>>> Frontend only so provided it has the requisite video card onboard
>>>> there is no need for any PCI[e] slots.
>>>>
>>>> I will be connecting it to a flat panel 720p TV with VGA or HDMI. HDMI
>>>> with sound out would be nice but not essential.
>>>>         
>>> The wholesalers in NZ sell the Intel Atom Processor Motherboards
>>> (D945GCLF) at a reasonable cost.
>>>
>>>
>>> http://www.intel.com/products/desktop/motherboards/D945GCLF2-D945GCLF2D/D945GCLF2-D945GCLF2D-overview.htm
>>>
>>> Anyone who gets stuff from Tech Pacific/Ingram Micro should be able to
>>> get them.
>>>
>>> Then you have to find a PCI vdpau card... I would love if someone knew
>>> what would work. I cannot find one myself.
>>>
>>> Thanks
>>>
>>>
>>>
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>>>       
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>>     
>
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