Originally posted by: Slaimus
Guys, follow the inquirer link and goto that German site. Do what it says to enable DXVA for WMP10. With the 67.02 driver, the GPU temperature does goes up playing all video, and goes up by a lot when playing a MPEG2 VOB. While Step Into Liquid still drops frames, it drops fewer with DXVA enabled.
EDIT: And it seems to drop even fewer frames when you play it through nStant Media.
NIce call. This is good for diagnostic stuff as much as anything. If people have a 6600, then this will help them get theirs working, as it has to be in DXVA mode to work. Also, everyone should have Enable VMR checked in their Nvidia Control Panel. If you don't have the option(under Overlay tab) then you have to download a special nvdvd tweak coolbits from guru3d.
All this time, I've been testing all the WinHD demos, and I typically run them in VMR9 mode and YUV. I've tried every config though in VMR9, YV12, DXVA A,DXVA B, and so forth. YUV has always looked and run the best. Upon your advice I enabled DXVA again, (with VMR9 as well) and I found that my GPU temp went up 1 degree. Not sure if this is an anomoly or what. ANyways, it ran much poorer in DXVA mode than in YUV mode. It dropped a lot more frames. YUV still drops a lot but is slightly smoother. There is a slight color difference between YUV and DXVA but I have to look real close. To my eyes DXVA the colors look slightly washed out, more whitish. The color on any of the VMR9 modes is still really good though. My guess at what could be happening as per the dropped frames, and increased gpu temp, is that if I had a 6600, then the acceleration would l be working with these settings, but since I don't, it is burdening my processor more. I think its also likely that on the 6800's, the purevideo features minus .wmv hardware accel are put into effect. So, IDCT and 3:2 pulldown are working in the settings weve mentioned above, ( DXVA mode(just like it does in DVD's) and that could be why you and I both get the temp increases, for some reason you get better performance, myself I get worse...not sure whats up there...but it could be to do with me outputting at 1920x1080i.
Anyone else have any ideas? How are you configuring these WInHD demos? Do you differentiate between DXVA (B) and DXVA(A)? I lock in my settings in Zoom PLayer, ie: YUV, YV12, DXVA or whatever, and it forces it in WMP universally. I also have found Nstant to play these WinHD files best. Moreover, it provides the cleanest tear-free smooth film like DVD image. Too bad its a liittle light on playback features....but I can sacrifice that anyday for the far superior IQ for nstnant gives. It uses a Renderless mode for DVD playback, which provides the tear-free image in VMR9, its basically the only way to get that playback mode in WinXP. From what I understand, Win Media Center Ed. has gone this method almost exclusively. The only other way to get this new M$ renderless VMR9 mode(that is superior in nearly every respect to overlay, and traditional 2d VMR9) is a little known program called mediator. It works nicely also,its in alpha, and is real limited too, but again, the IQ is just far superior than anything out there. If anyone is interested in mediator, do a search over at AVS forum HTPC section, or i can give a link if requested.
Also, these WInHD demos, people say, big deal you can't play them proper...well, in and of itself its not the end of the world, but they are a kind of a benchmark per-say for HTPC users, and for seeing how well your system handles >wmvHD Video, and overly demanding video in general. Before these 6800 cards were even announced, I had already downloaded all these demos, and played them a hundred times over to help configure the performance of my system()anything from how smooth playback is, to color, or to compare the various output modes, like YUV, OVerlay, YV12, ect.... Imo, these little demos are valuable, at least for a lot of people's uses. The situation now, where we cant play them, at least for me, It is basically a lot like if you went out and spent $400 on a video card, and it couldn't run 3dmark03. I mean, sure, its a synthetic bench, but even still, its important to some people in and of itself, and it is a "benchmark" / measuring stick for how your card is gonna do similar things. Same thing with these demos. It does piss me off nearly every time I see my card stagger and give a slideshow playback of one of these demos, and my 9800pro handled it fine, and a 6600 can handle it fine. Thats a joke that a 6800ultra can't. I'm about to upgrade my entire system and processor, but I shouldn't freaking have to, my current card oughtt to handle it, and I paid for it to handle it.