win 7 has native gpu accelerated video transcoding?

[deadrats]

i don't know how i haven't heard about this before:

http://www.bit-tech.net/news/bits/20...video-transc/1

Microsoft's Murray Vince yesterday revealed that Windows 7 features native support for GPU accelerated video transcoding.

any win 7 users here that can confirm or rebut this? or are they talking about the dx compute part of dx11?

[jagabo]

Microsoft's Murray Vince yesterday revealed that Windows 7 features native support for GPU accelerated video transcoding.

That may not mean anything more than that the OS has the hooks for other tools. If Win7 does have it's own GPU accelerated encoder you can bet it's only for WMV.

[M Bruner]

It really does make my Premier Pro cook. It took my 1.1 GB video of my wife's tour of her garden and had in converted in 11 minutes. My laptop would have taken almost thirty minutes.

[jagabo]

Are you confirming GPU accelerated encoding (of what to what?) or just saying one computer is faster than another?

[M Bruner]

That Windows 7 does allow GPU accelerated encoding on my computer which really speeds up encoding. Sorry I wasn't clearer.

[deadrats]

That Windows 7 does allow GPU accelerated encoding on my computer which really speeds up encoding. Sorry I wasn't clearer.

how specifically does win 7 "allow" for it? all OSes technically allow for gpu acceleration as long as the app and the drivers are coded for it, i can use gpu acceleration on xp 64, but this article claims that it's somehow built into win 7, which would make my first guess that they are referring to the dx compute portion of dx11, but the article makes it seem like there's more to it than that. now you're saying that win 7 "does allow GPU accelerated encoding", so which app are you using? windows media encoder? movie maker? windows media player? a third party app? details, please.

[M Bruner]

It really does make my Premier Pro cook. It took my 1.1 GB video of my wife's tour of her garden and had in converted in 11 minutes. My laptop would have taken almost thirty minutes.

[deadrats]

It really does make my Premier Pro cook. It took my 1.1 GB video of my wife's tour of her garden and had in converted in 11 minutes. My laptop would have taken almost thirty minutes.

premiere pro doesn't feature gpu accelerated encoding, but there is a plug in available that comes bundled with a $2000 quadro, that however has nothing to do with win 7, said capabilities are available to on any windows version that supports cuda acceleration.

i'm talking about something specific to win 7 that the article seems to imply exists.

[M Bruner]

Thanks, I'll stop here, then.

[jagabo]

It just strikes me as "marketing speak" by of two execs from Microsoft and Nvidia. Means nothing.

[Malicious]

As far as I have been able to tell there is no difference. Granted I may not have any software that takes full use of the GPU video transcoding, but I am having to re-rip my dvd collections as my terabyte drive has failed. I am seeing basically no difference in the transcoding speed.

[deadrats]

As far as I have been able to tell there is no difference. Granted I may not have any software that takes full use of the GPU video transcoding, but I am having to re-rip my dvd collections as my terabyte drive has failed. I am seeing basically no difference in the transcoding speed.

that's because they are probably referring to the dx compute portion of dx11, which no one is using just yet. gpu acceleration does make a huge difference however with the right software, try tmpg express, which supports gpu accelerated (if you have an nvidia based graphics card) decoding of mpeg-2 input as well as gpu accelerated filters.

i have some old dvd's, back from the days when some dvd's looked like they were a vhs transfer, with lots of noise, interlaced, just crappy quality and i'm basically using modern tools to clean them up. inputting the dvd into tmpg express, using the most aggressive deinterlace option it offers (inverse pulldown), the most aggressive video denoise option available, and the most aggressive mpeg-2 settings available for quality (matrix wise, dc precision wise, etc) and no matter how much i set the target bit rate at i still get real time encoding, with only 4% cpu usage, on a dual core X2 550, with my 9600 gso handling 96% of the workload).

now it's true that most encoders that support gpu accelerated encoding suck, offering either sub par quality or minimal performance improvement, but a few seem to get it right, tmpg express being one of them (it would be nice if they accelerated decoding of all input formats and accelerated encoding of all formats, but i think they are contractually prevented from doing so) and there is on app for snow leopard that uses opencl to gain 40fps mpeg-2 encoding boost, but it will probably be a while before we see the real advantages of gpu acceleration.

basically the technology is sound, it's the developers that are bananas.