[mythtv-users] OT: VDPAU and VP3 or VP2?

sonofzev at iinet.net.au sonofzev at iinet.net.au
Thu Jul 30 06:59:40 UTC 2009

On Thu Jul 30 15:31 , "sonofzev at iinet.net.au"  sent:

>On Thu Jul 30  1:24 , Raymond Wagner  sent:
>>Khanh Tran wrote:
>>> It seems the latest PureVideo implementation (VP3) is only supported
>>> on the rare desktop Nvidia cards (like this one:
>>> http://www.newegg.com/Product/Product.aspx\?Item=N82E16814121235\) or
>>> laptop/integrated motherboards.  I'd like to get a few desktop cards,
>>> but the desktop cards, but I'm wondering if VP3 is really all that
>>> much more important than just VP2 in a newer card like the Geforce
>>> 9400 GT or 9500 GT.
>>VP2/3 are not official names for anything, however the 'rare' cards you 
>>speak of offer a VC-1 entropy decoder to allow full bitstream offload of 
>>VC-1.  This was desirable early on with VDPAU, however several months 
>>ago, support was added for the less capable cards to do this decoding 
>>within the driver, allowing VC-1 decoding in all VDPAU-capable cards.
>>Currently, the recommendation for a discrete card is one capable of 
>>using all available deinterlace modes at full 1080i resolution.  That 
>>typically means a 9500GT or 8600GT.
>After following all the instructions here last night; 
>including triple buffer, upping cpu speed to 1.8 GHz and turning off composite
>I've found that Advanced 2* actually works well on an 8600 GS with 256 MB as
>well... so all de interlace modes appear to be available.
>although it's pretty hard to get these cards now.. 
>Is this not expected? 

My apologies.. I'm a dufus... I have 8600 gt cards... 
Is it likely that the ramped up cpu speed is making a difference.. I could barely
tell and I think it might be due to an expectation on my behalf not a reality.. 

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