So, there's no DXVA acceleration with SageTV in Vista

[Chriscic]

I think I gathered that from an old thread... is that correct? I have to use XP?

[jerryt]

Originally Posted by Chriscic

I think I gathered that from an old thread... is that correct? I have to use XP?

I believe XP has DXVA acceleration with VR9 and Vista has DXVA acceleration with EVR, but no EVR in Sage. So you thread title would be correct.

[Polypro]

But if you have at least an E6600, you can software decode without a problem...I have about 50% on each core when watching the test clips. I think E8500's are around $200 as well. If I had Sat or Cable, I wouldn't hesitate...Vista is just too stable to back to XP.

P

[bmac.to]

From what I understand from the previous posts, DXVA does occur in Vista when decoding MEPG2. However, when decoding MPEG4 and other compression schemes, EVR is necessary to get DXVA in Vista.

Am I correct?
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[reggie14]

Actually, I'm under the impression that EVR will just offload more of the video decoding pipeline to the GPU than VMR9. So, mpeg2 is pretty much completely offloaded either way, but quite a bit more of the mpeg4 decoding process is offloaded if you're using EVR.

[Chriscic]

Originally Posted by Polypro

But if you have at least an E6600, you can software decode without a problem...I have about 50% on each core when watching the test clips. I think E8500's are around $200 as well. If I had Sat or Cable, I wouldn't hesitate...Vista is just too stable to back to XP.

P

I can't get smooth playback in Sage in Vista or XP on my Core2Duo 2.4ghz. At least with the Arcsoft decoder which is supposed to be the best option. Plus, I have seen hardware accelerated vid vs the CPU decode (at least with Arcsoft), and the hardware decode was noticeably sharper. I hope Sage will be able to support EVR in the future.

[redondo_se]

Please contact sage support and let them know EVR is important to you.

Let Sage know you want EVR support

Thanks.

[mikesm]

I don't think that's true. My ATI 4850 with Cat 8.8 drivers and using PowerDVD 7's MPEG2 codecs definitely uses hardware acceleration for mpeg2 decode, using VMR9. EVR support would really be great, as I know it makes a bigger difference with nvidia cards, but ATI seems to work under Vista fine.

[bmac.to]

Interestingly enough, that is exactly the same setup I am running (4850, DXVA, PDVD7 decoder, Vista 64-bit). When I am watching a MPEG2 file, my CPU usage is in the 30-45% range. From what I read in these forums, some people are in the 5% range. I assume that the CPU is still doing too much work in my case - perhaps some hardware acceleration is occuring, but it is not as much as some people get.

What is your CPU usage?
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