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Old 20th January 2019, 18:56   #54341  |  Link
huhn
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what decoder are you using?
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Old 20th January 2019, 19:06   #54342  |  Link
ErMaC
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LAV Video Decoder 0.71.0
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Old 20th January 2019, 19:08   #54343  |  Link
huhn
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change the hardware decoder from dxva native or d3d11 to DXVA copyback.

blackbar detection is run on the CPU and with a native decoder the CPU never sees the image.
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Old 20th January 2019, 19:36   #54344  |  Link
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Well egg on my face... seems to have fixed it! thanks so much
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Old 20th January 2019, 19:43   #54345  |  Link
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this is not well documented so what could you do.
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Old 20th January 2019, 20:01   #54346  |  Link
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This says that native dithering is possible with NVidia Linux drivers and Windows Quadro drivers and now regular GeForce cards, but I can't get it to work or figure out how to test it https://steamcommunity.com/groups/Sp...8172123104780/

Is this how it is supposed to look like in the registry https://drive.google.com/file/d/1uin...w?usp=drivesdk ?
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Old 20th January 2019, 20:13   #54347  |  Link
huhn
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nvidia is using dithering in like forever and it's very easy to test.

the examples are more about the the type of dithering in an ideal situation we don't want the image from madVR to be dithered by the driver.

so the only useful situation i can see here is the 6 bit dithering which madVR can already do...
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Old 20th January 2019, 20:20   #54348  |  Link
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Set the hardware device to "Automatic (Native)" not the RTX 2070, always? in the LAV video filters do you have to put it this way? I set rx 560, so it's wrong?
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Old 20th January 2019, 20:34   #54349  |  Link
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not selecting a GPU results in native mode which is supposed to be faster but you can't use all blackbar detection features and other stuff like deinterlancing.

selecting a GPU is better for compatibility but DXVA copyback does the same and DXVA copyback was faster than D3D11 copyback if i remember correctly but not that it matters.
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Old 20th January 2019, 21:19   #54350  |  Link
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but the non-selection of the GPU in the lav is for 4k hdr files or for everything? me with 1080p material I feel very comfortable with DVXA copyback and I have no problems, reading the message of warner I came the doubt
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Old 20th January 2019, 21:30   #54351  |  Link
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what no doesn't matter if your system works properly.

warners advise is clearly worth a try but it doesn't mean you have to do or use that.
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Old 20th January 2019, 21:31   #54352  |  Link
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nvidia is using dithering in like forever and it's very easy to test.

the examples are more about the the type of dithering in an ideal situation we don't want the image from madVR to be dithered by the driver.

so the only useful situation i can see here is the 6 bit dithering which madVR can already do...
I could never notice NVidia performing any dithering by itself, at least not in games or video playback without madVR and dithering-enabling filters/renderers.

Perhaps this was not the most appropriate place to post that info, but I generally wanted to know how to truly enable NVidia dithering for desktop. That way Netflix content gets dithered... I doubt we will ever see madVR support for Microsoft Store Netflix App. Therefore driver-forced dithering is the only way to enable it for Netflix...
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Old 20th January 2019, 21:44   #54353  |  Link
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you missing the point there is nothing to dither after your netflix app/browser.

and games send presentation frame to the driver if they are not before that then there simply isn't anything to dither which wouldn't be dithered anyway.

it is very simple to test if nvidia is dithering.

you take a gray scale load it in madVR with 10 presentation and you force your GPU driver to send 8 bit RGB.

if you don't see 256 steps the driver is clearly dithering.

Quote:
In short, all displays dither but not all do it properly for various reasons (ex: TN panel displays).
You will either benefit from this, or see no difference at all.
If you see no differences with any of the options then congratulations your display does dithering proper.
if your display is fine with dithering you don'T see anything different?? that's not how this works...
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Old 20th January 2019, 22:19   #54354  |  Link
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God Damn It, just noticed AMD Dxva 4KHDR causes banding.. That's it, Final Straw, I'm selling my RX580..

Not going to sit around waiting for fixes for 3 years..

Sad, because I got a great deal on this card, Overclocks like a champ and runs super cool.


Gonna have to buy another 1060, sigh... all these ebay miner 1060s look so ragged/shi77y ..
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Old 21st January 2019, 00:26   #54355  |  Link
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God Damn It, just noticed AMD Dxva 4KHDR causes banding.. That's it, Final Straw, I'm selling my RX580..

Not going to sit around waiting for fixes for 3 years..

Sad, because I got a great deal on this card, Overclocks like a champ and runs super cool.


Gonna have to buy another 1060, sigh... all these ebay miner 1060s look so ragged/shi77y ..
cant say ive noticed any, under what conditions / material ?
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Old 21st January 2019, 00:39   #54356  |  Link
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Quote:
Originally Posted by Warner306 View Post
Set the hardware device to "Automatic (Native)" not the RTX 2070.
I follow your indication and the only option that activate hardware decoding was CUVID (look at the attached image).
In this way massive dropped frames are vanished.
Now it's ok.

Thank you.

My question is: the only kind of hardware accelleration supported by those nvidia cards is Cuvid?

thank you
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Old 21st January 2019, 00:45   #54357  |  Link
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No, something is wrong with your setup, you should be able to use any DXVA mode successfully.
Do you have multiple displays or multiple GPUs, and is the one you're using to display video configured as the main (first) one?
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Old 21st January 2019, 01:13   #54358  |  Link
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cant say ive noticed any, under what conditions / material ?
I got the Martian on 4K HDR, I could especially see the Banding on the Mars Red Sky in the intro sequences of the movie. This is through DXVA native on the 580.

This is on the latest adrenaline driver with 09217 madvr.


I agree it could very well be my Particular TV Computer/ Cable, software, etc,


I'm just at wits end with this, and I know my kitchen computer w/ 1060 does 4KHDR just fine, So.. My patience has been exceeded..
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Old 21st January 2019, 01:18   #54359  |  Link
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No, something is wrong with your setup, you should be able to use any DXVA mode successfully.
Do you have multiple displays or multiple GPUs, and is the one you're using to display video configured as the main (first) one?
I'm not Super duper sure if the cpu can do 4K 60.. with the 64bit mpchc Avx + 8 thread hw , it SHOULD..

DXVA definitely can do it though, so gotta select DXVA native in Lavfilter hardware acceleration.
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Old 21st January 2019, 01:38   #54360  |  Link
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chill is has to work with d3d11 and copyback too.

DXVA native is well known to make problem BTW.
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