Blurry 4K image with Xbox One X & DeckLink Extreme 4K 12G

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Stefan Seiler

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Blurry 4K image with Xbox One X & DeckLink Extreme 4K 12G

PostTue Feb 20, 2018 8:20 am

Hi there,

i am using a DeckLink 4K Extreme 12G to capture uncompressed video files of video game consoles such as PS4, PS4 Pro, Xbox One and Xbox One X via HDMI.

Now when I capture a PS4 Pro game with 2160p59.94 everything is fine. The image is crisp like you expect it. The PS4 Pro outputs the signal with 2160p59.94 RGB.

When I try to capture Xbox One X with 4K output, the image is blurry as if it is interlaced. With another capture card (Magewell AiO HDMI 4K Plus) everything is perfect.

I tried to capture via OBS which uses UT Video codec, the result is the same. I have attached the image below.

I use a Windows 10 Pro PC, with Samsung Evo 960 Pro M2 SSD (fastest SSD on the market), Intel Core i7 6700K & 32 GB DDR4 RAM.

When I use a splitter to output the Xbox Obe X signal to a 4K TV in addition to the capture card, the image on the TV screen appears normal and crisp, while the capture card still captures a blurry 4K image.

Here is the image, you need to download it to see the blurriness. https://imgur.com/a/60r9O

The video game doesn't matter, it is with all games the same.

Thanks a lot!

Cheers,

Stefan
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Stefan Seiler

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Re: Blurry 4K image with Xbox One X & DeckLink Extreme 4K 12

PostTue Feb 27, 2018 8:38 am

Does anyone have an idea how this can happen? Do you need additional information?
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kjhmagic

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Re: Blurry 4K image with Xbox One X & DeckLink Extreme 4K 12

PostThu Mar 01, 2018 9:37 pm

PS4 PRO

Case 1
PS4 PRO Setting : 2160p - RGB (non HDR)
PS4 PRO Output signal : 2160p59.94 RGB444
Decklink Extreme 12G recognize the signal : 2160p59.94, 8-bit BGRA
Decklink Extreme 12G Setting : 8-bit YUV or 10-bit YUV
Screenshot : https://imgur.com/v0nKPua (Please download and view)
Result : blurry and interlaced capture quality. 10-bit RGB is black screen captured.

Case 2
PS4 PRO Setting : 2160p - RGB (HDR)
PS4 PRO Output signal : 2160p59.94 YUV422
Decklink Extreme 12G recognize the signal : 2160p59.94, 10-bit YUV 4:2:2
Decklink Extreme 12G Setting : 8-bit YUV or 10-bit YUV
Screenshot : https://imgur.com/EODLhov (Please download and view)
Result : Perfect capture quality

Case 3
PS4 PRO Setting : 2160p - YUV420 (non HDR)
PS4 PRO Output signal : 2160p59.94 YUV420
Decklink Extreme 12G recognize the signal : 2160p59.94, 10-bit YUV 4:2:2
Decklink Extreme 12G Setting : 8-bit YUV or 10-bit YUV
Screenshot : https://imgur.com/cj6WbfW (Please download and view)
Result : Perfect capture quality


So, When I capture the PS4 game, I use the 2nd(4K HDR) & 3rd(4K non HDR) method.




XBOX ONE X

Case 1
XBOX ONE X Setting : 4K & YCC422 Check (non HDR)
XBOX ONE X Output signal : 2160p59.94 RGB444
Decklink Extreme 12G recognize the signal : 2160p59.94, 8-bit BGRA
Decklink Extreme 12G Setting : 8-bit YUV or 10-bit YUV
Result : blurry and interlaced capture quality. 10-bit RGB is black screen captured.

Case 2
XBOX ONE X Setting : 4K & YCC422 Check (HDR)
XBOX ONE X Output signal : 2160p59.94 YUV422
Decklink Extreme 12G recognize the signal : 2160p59.94, 10-bit YUV 4:2:2
Decklink Extreme 12G Setting : 8-bit YUV or 10-bit YUV
Result : Perfect capture quality


So, When I capture the XBOXONE game, I use the 2nd(4K HDR) method.
I think 4K non HDR capture on xboxone seems impossible.
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Stefan Seiler

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Re: Blurry 4K image with Xbox One X & DeckLink Extreme 4K 12

PostMon Mar 19, 2018 7:27 am

Wow thanks a lot.

I tested this with PS4 Pro before posting this, I made the expierence that YUV Output lead to no problems, RGB did - I didn't try with HDR.

For me it is important to have the exact same color space on every console, cuz I am doing comparison videos out of it. It is extremely annoying not to have an easy plug an play solution.
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Stefan Seiler

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Re: Blurry 4K image with Xbox One X & DeckLink Extreme 4K 12

PostThu Apr 05, 2018 7:02 am

So basically there seems to be an incompatibility issue with PS4 Pro and Xbox One X and their 2160p60 RGB signal output. This is something, the devs could fix if they wanted to.

I can confirm every problem kjhmagic wrote. Seems to be a general issue. If someone has experienced the same issue, I would be glad if he or her posted it here :)
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kjhmagic

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Re: Blurry 4K image with Xbox One X & DeckLink Extreme 4K 12

PostMon Apr 09, 2018 4:56 pm

I think DeckLink Extreme 4K 12G is not support to record 2160p60 8bit 4:4:4 RGB.
Even though 2160p60 8bit 4:4:4 RGB is not exceed hdmi 2.0a bandwidth, 12G is not support that.
It is too bad......
DeckLink Extreme 4K 12G tech spec is here.

8, 10, 12-bit RGB 4:4:4 in all modes up to UHD 30p, and 8, 10-bit YUV 4:2:2 in all modes.

So you want to record 2160p60(non HDR) source, other company product will needed.
2160p60 HDR source is supported because it is 10bit 4:2:2 YUV source.
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Jack Fairley

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Re: Blurry 4K image with Xbox One X & DeckLink Extreme 4K 12

PostMon Apr 09, 2018 5:01 pm

I never tried with current gen consoles, but I was never able to get mine to take a 2160p60 RGB 4:4:4 signal from a PC.

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