Intel QuickSync Decoder - HW accelerated FFDShow decoder with video processing - Page 125

NikosD · 12th May 2014, 20:55

S/W decoding seems fine.

nevcairiel · 13th May 2014, 00:25

You are posting confusing things then.

Quote:

Originally Posted by theoneofgod

Here, setting DXVA reverts to avcodec. Distortion at 3:04 too. The 0:38 distortion happens without seeking, everytime.

You said DXVA reverts to avcodec, and it shows distortion too? or not? or what now?

theoneofgod · 13th May 2014, 10:13

Quote:

Originally Posted by nevcairiel

You are posting confusing things then.

You said DXVA reverts to avcodec, and it shows distortion too? or not? or what now?

I was adding to the QS distortion. With QS, distortion also occurs at 3:04, as well as 0:38. I'm still unable to have DXVA function with 4k streams.

M@xim · 17th May 2014, 12:19

Where is better picture quality now, DXVA or QS?

kypec · 17th May 2014, 12:29

Quote:

Originally Posted by M@xim

Where is better picture quality now, DXVA or QS?

Picture quality must not be dependent on used decoder. If you experience any visual difference between decoders used then there must be some post-processing going on between decoder output -> renderer input.

Yups · 4th June 2014, 13:25

Quote:

Originally Posted by GTPVHD

Intel 10.18.10.3621 drivers for Haswell, Ivy Bridge & Bay Trail. Eventhough the page says only for NUC, it does install on all supported hardware.

https://downloadcenter.intel.com/Detail_Desc.aspx?DwnldID=23886

https://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&ProdId=3720&DwnldID=23885&ProductFamily=Grafik&ProductLine=Desktop-Grafikcontroller&ProductProduct=Intel%C2%AE+Core%E2%84%A2+Prozessoren+der+vierten+Generation+mit+Intel%C2%AE+HD-Grafik+4600&lang=eng

Interesting is this change:

Quote:

HEVC decode now supported by the driver and video players can now take advantage of the GPU accelerated decode support offered by Intel

theoneofgod · 4th June 2014, 15:03

Quote:

Originally Posted by Yups

https://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&ProdId=3720&DwnldID=23885&ProductFamily=Grafik&ProductLine=Desktop-Grafikcontroller&ProductProduct=Intel%C2%AE+Core%E2%84%A2+Prozessoren+der+vierten+Generation+mit+Intel%C2%AE+HD-Grafik+4600&lang=eng

Interesting is this change:

If they mean via QS, I see no difference. Same old distortion.

CiNcH · 5th June 2014, 11:36

Quote:

HEVC decode now supported by the driver and video players can now take advantage of the GPU accelerated decode support offered by Intel

Indeed interesting. I wonder how it is done. Since H.265/HEVC QS ASIC support does not even appear on the list of Broadwell, it can only be some acceleration via shaders. It will be interesting to see which parts actually are accelerated and how well it scales with HD2000/HD4000/HD5000 series GPUs.

andyvt · 5th June 2014, 11:38

Quote:

Originally Posted by CiNcH

Indeed interesting. I wonder how it is done. Since H.265/HEVC QS ASIC support does not even appear on the list of Broadwell, it can only be some acceleration via shaders. It will be interesting to see which parts actually are accelerated and how well it scales with HD2000/HD4000/HD5000 series GPUs.

Or they just left it off the spec sheet...

Yups · 5th June 2014, 13:34

Quote:

Originally Posted by CiNcH

Indeed interesting. I wonder how it is done. Since H.265/HEVC QS ASIC support does not even appear on the list of Broadwell, it can only be some acceleration via shaders. It will be interesting to see which parts actually are accelerated and how well it scales with HD2000/HD4000/HD5000 series GPUs.

Via Shader is more or less confirmed from Intel.

Quote:

On that note, there are plans to release a "hybrid" (utilizing EUs of the Core Processor graphics unit) HEVC decoder later this year.

https://software.intel.com/en-us/forums/topic/499189

M@xim · 9th June 2014, 02:58

Hi, i used g3420, 10.18.10.3621 video driver, WMP and LAV. When play "Japan 1080p59.94" and use QuickSync in LAV, video play normal, but if i click remote for any position video begins to freeze any ~5 seconds, cpu load in this moments has down to 0. If change QuickSync on DXVA Native video play good.

egur · 9th June 2014, 07:11

I'm not familiar with this clip. Can you upload it or part of it?
Which splitter do you use?

M@xim · 9th June 2014, 08:13

Splitter is LAV too. Link on download video https://drive.google.com/open?id=0B7zcTvSa9boAUlEyOFluTEdhWGc

egur · 9th June 2014, 08:40

Please in a method that doesn't require me to install any SW.

M@xim · 9th June 2014, 09:30

Dropbox https://www.dropbox.com/s/aslys4va3ssrsbk/Japan%201080p59.94.m2ts

NikosD · 9th June 2014, 09:55

I can confirm the above behavior described by M@xim

Using PotPlayer with QS decoder, seeking becomes almost instant like DXVA native.

theoneofgod · 9th June 2014, 11:33

Quote:

Originally Posted by M@xim

Hi, i used g3420, 10.18.10.3621 video driver, WMP and LAV. When play "Japan 1080p59.94" and use QuickSync in LAV, video play normal, but if i click remote for any position video begins to freeze any ~5 seconds, cpu load in this moments has down to 0. If change QuickSync on DXVA Native video play good.

+1, reproduced this too with MPC-HC nightly using internal decoders (LAV) + QS.

egur · 9th June 2014, 12:43

I reproduced also on ffdshow on SandyBridge. I'll look into this.

cybersans · 14th June 2014, 12:21

the 15.33.19.64.3540 driver caused out-of-sync while playing mkv/mp4 videos using ffdshow_rev4519_20130622_egur.exe
need to release a new version, maybe since last version is 2013.

fyi, i am using .3412 driver since it is the "latest" driver that did not give any problem with ffdshow. other version later than that until .3540 caused audio and video not sync, where i can see that video comes faster than audio.

thats all for the information.

CharlieCL · 19th June 2014, 19:50

Weird true full screen bug. I tested with windows 8.1, LAV 0.61.2 on Dell XPS12 Haswell. The first time installation I can switch to true full screen and run videos fines. But when I switch back to normal windows mode then back to true full screen, the full screen stayed in dead, no any reaction except close it. I am not sure if Quick Sync or driver not release all the resources in full screen switching.

12th May 2014, 20:55	#2481 \| Link
NikosD Registered User Join Date: Aug 2010 Location: Athens, Greece Posts: 2,901	S/W decoding seems fine. __________________ Win 10 x64 (19042.572) - Core i5-2400 - Radeon RX 470 (20.10.1) HEVC decoding benchmarks H.264 DXVA Benchmarks for all

9th June 2014, 07:11	#2492 \| Link
egur QuickSync Decoder author Join Date: Apr 2011 Location: Atlit, Israel Posts: 916	I'm not familiar with this clip. Can you upload it or part of it? Which splitter do you use? __________________ Eric Gur, Processor Application Engineer for Overclocking and CPU technologies Intel QuickSync Decoder author Intel Corp.

9th June 2014, 08:40	#2494 \| Link
egur QuickSync Decoder author Join Date: Apr 2011 Location: Atlit, Israel Posts: 916	Please in a method that doesn't require me to install any SW. __________________ Eric Gur, Processor Application Engineer for Overclocking and CPU technologies Intel QuickSync Decoder author Intel Corp.

9th June 2014, 09:55	#2496 \| Link
NikosD Registered User Join Date: Aug 2010 Location: Athens, Greece Posts: 2,901	I can confirm the above behavior described by M@xim Using PotPlayer with QS decoder, seeking becomes almost instant like DXVA native. __________________ Win 10 x64 (19042.572) - Core i5-2400 - Radeon RX 470 (20.10.1) HEVC decoding benchmarks H.264 DXVA Benchmarks for all Last edited by NikosD; 9th June 2014 at 10:29.

9th June 2014, 12:43	#2498 \| Link
egur QuickSync Decoder author Join Date: Apr 2011 Location: Atlit, Israel Posts: 916	I reproduced also on ffdshow on SandyBridge. I'll look into this. __________________ Eric Gur, Processor Application Engineer for Overclocking and CPU technologies Intel QuickSync Decoder author Intel Corp.

17th May 2014, 12:19	#2484 \| Link
M@xim Registered User Join Date: Apr 2014 Posts: 5	Where is better picture quality now, DXVA or QS?

9th June 2014, 02:58	#2491 \| Link
M@xim Registered User Join Date: Apr 2014 Posts: 5	Hi, i used g3420, 10.18.10.3621 video driver, WMP and LAV. When play "Japan 1080p59.94" and use QuickSync in LAV, video play normal, but if i click remote for any position video begins to freeze any ~5 seconds, cpu load in this moments has down to 0. If change QuickSync on DXVA Native video play good.

9th June 2014, 08:13	#2493 \| Link
M@xim Registered User Join Date: Apr 2014 Posts: 5	Splitter is LAV too. Link on download video https://drive.google.com/open?id=0B7zcTvSa9boAUlEyOFluTEdhWGc

9th June 2014, 09:30	#2495 \| Link
M@xim Registered User Join Date: Apr 2014 Posts: 5	Dropbox https://www.dropbox.com/s/aslys4va3ssrsbk/Japan%201080p59.94.m2ts

14th June 2014, 12:21	#2499 \| Link
cybersans Registered User Join Date: May 2012 Posts: 26	the 15.33.19.64.3540 driver caused out-of-sync while playing mkv/mp4 videos using ffdshow_rev4519_20130622_egur.exe need to release a new version, maybe since last version is 2013. fyi, i am using .3412 driver since it is the "latest" driver that did not give any problem with ffdshow. other version later than that until .3540 caused audio and video not sync, where i can see that video comes faster than audio. thats all for the information.

19th June 2014, 19:50	#2500 \| Link
CharlieCL Registered User Join Date: Jan 2012 Posts: 67	Weird true full screen bug. I tested with windows 8.1, LAV 0.61.2 on Dell XPS12 Haswell. The first time installation I can switch to true full screen and run videos fines. But when I switch back to normal windows mode then back to true full screen, the full screen stayed in dead, no any reaction except close it. I am not sure if Quick Sync or driver not release all the resources in full screen switching.