1 Topic by Nick 3DvB (edited by Nick 3DvB 14-11-2012 07:24:55)

  • Thanks: 4

Topic: Hardware acceleration of SVP

Moved here from topic 3D support
MAG79

For 3D bluray it doesn't really matter which decoder we use, as long as it can use CUDA, even then SVP performance with MVC will be half SBS 3D!  Maybe this has been asked before but I was wondering if you could use DGDecNV to fully CUDA accelerate the all the non-avisynth stuff?  Would it help reduce CPU usage much, has anyone tried it?

http://neuron2.net/dgdecnv/dgdecnv.html

wink

MAG79 wrote:

Nick 3DvB
SVP uses LAV Filters with hardware decoding. LAV CUVID decoder has the same algo as in neuron's DGDecNV.

So DGDecNV is really no faster than LAV / CoreAVC CUDA decoding, to speed things up now we need SVPflow porting to CUDA / OpenCL, but I think we need some time for that...  I was hoping for 60fps on my old AMD Phenom II 4GHZ, but I'll be happy to live with 48fps for MVC 3D blurays.

smile

  • MAG79
  • SVP developer
  • Offline
  • Thanks: 1104
  • Thanks for the post: 1

Re: Hardware acceleration of SVP

Nick 3DvB
we need SVPflow porting to CUDA / OpenCL
We already done it wink GPU Compatibility
In SVP tray menu - GPU-acceleration (OpenCL) option must be enabled.

3 Reply by Nick 3DvB (edited by Nick 3DvB 14-11-2012 17:57:37)

  • Thanks: 4

Re: Hardware acceleration of SVP

So what is eating all these CPU cycles ?!  What else is left -  AVIsynth?

I don't think there is any chance of porting that to OpenCL any time soon!

  • Thanks: 81
  • Thanks for the post: 1

Re: Hardware acceleration of SVP

Nick 3DvB
So what is eating all these CPU cycles ?!

The most "hungry":
1. vectors search
2. interpolate frames composing.

2) may be on GPU
Avisynth uses for 1)

  • Thanks: 4

Re: Hardware acceleration of SVP

I thought SVPflow did both 1 & 2, there must still be some elements of these that can no be off-loaded to OpenCL.

  • Thanks: 81
  • Thanks for the post: 1

Re: Hardware acceleration of SVP

Nick 3DvB
avisynth vectors search algorithm's made and optimize for CPU and they are very difficult, even impossible to parallize for OCL
I think so

  • Thanks: 4

Re: Hardware acceleration of SVP

So OpenCL is not magic after all, I suppose we just need to wait for faster CPUs, finally something to make use of all those cores.  smile

  • Thanks: 81

Re: Hardware acceleration of SVP

Nick 3DvB
So OpenCL is not magic after all

yes of course

FX-6100/i7-920 faster enought for SVP
What do you want from faster than this two?

  • Thanks: 4

Re: Hardware acceleration of SVP

3D (MVC), 4K, SHV, 120Hz etc

  • Thanks: 81

Re: Hardware acceleration of SVP

Nick 3DvB

4K - I did;t see any clips in 4K

Who is mister SHV?

FX-6100*4400 faster enought for interpolate 120fps

11 Reply by Nick 3DvB (edited by Nick 3DvB 14-11-2012 21:35:54)

  • Thanks: 4

Re: Hardware acceleration of SVP

SHV = Super HiVision (NHK form of 8K)  But I know this is a long way off!

My main worry today is artifact free MVC for 3D on my poor old AMD box.

If LAV filters can't do MVC on CUDA then my CPU will be in trouble...

Re: Hardware acceleration of SVP

Sorry if this is threadcrapping, but I'd like to add that I'm having a similar issue with playback on my 680, even with gpu acceleration on SVP it's eating a fair chunk of my cpu, over 50% on 1080p video. I'm wondering if it's possible to offload everything onto my GPU.

Re: Hardware acceleration of SVP

Necron
I'm wondering if it's possible to offload everything onto my GPU

no it's not