madVR - high quality video renderer (GPU assisted)

[actarusfleed]

Originally Posted by Warner306

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

[el Filou]

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?

[tp4tissue]

Originally Posted by mclingo

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..

[tp4tissue]

Originally Posted by el Filou

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.

[huhn]

chill is has to work with d3d11 and copyback too.

DXVA native is well known to make problem BTW.

[tp4tissue]

Originally Posted by huhn

chill is has to work with d3d11 and copyback too.

DXVA native is well known to make problem BTW.

On nvidia and ati ?

Which lav setting is the best alternative to CPU decoding.

[huhn]

DXVA2 native decoding can do all kind of stuff with the image.

i know that for nvidia the chroma is misplaced by half a sub pixel with DXVA native and deinterlancing.

not sure what AMD is currently doing wrong but bilinear chroma is not the hit anyway. bending is clearly a possibility. beware that bending could come from d3d11 full screen or d3d11 fullscreen window too so check those. nvidia broke d3d11 fullscreen window a long while ago which is now fixed.

just use DXVA copyback which should do until 8k which hopefully never takes foot.

[tp4tissue]

Originally Posted by huhn

DXVA2 native decoding can do all kind of stuff with the image.

i know that for nvidia the chroma is misplaced by half a sub pixel with DXVA native and deinterlancing.

not sure what AMD is currently doing wrong but bilinear chroma is not the hit anyway. bending is clearly a possibility. beware that bending could come from d3d11 full screen or d3d11 fullscreen window too so check those. nvidia broke d3d11 fullscreen window a long while ago which is now fixed.

just use DXVA copyback which should do until 8k which hopefully never takes foot.

How does dxva copyback improve upon dxva's problems. As in, how does it work..

also does dxva native while using madvr's chroma have any issues ?


Finally, what is the highest Nvidia driver that everyone's using with known compatibility.

[Asmodian]

DXVA2 Copy-back copies the video data from the memory on the GPU to system memory after hardware decoding. This allows code that runs on the CPU to access the video data but takes PCIe bandwidth. The data is also copied back to the GPU for further processing by madVR, and then finally sent to the GPU driver for display. This is why you want at least PCIe 2.0 x16 or PCIe 3.0 x8. For 4K60 HDR you might need more?

To complicate this Nvidia, with all drivers as far as I know, has that odd half pixel chroma offset which madVR avoids in copy-back mode by handling all chroma scaling itself. With DXVA2 Native there is a blur or similar damage when coping the chroma to madVR (GPU to GPU memory copy), even when using non-dxva chroma scaling. D3D11 Native avoids this issue. Nvidia's DXVA2 deinterlacing still has chroma issues no matter what chroma scaling you use.

Everything seems to work well for me with the current 417.71 drivers on a RTX 2080 Ti, Win10 1809 17763.253. HDR requires 10-bit output but both D3D11 fullscreen windowed and exclusive work well, with the GPU outputting 8-bit RGB to my LG C7P. I can add a custom mode for 23.976 Hz and optimize it.

[actarusfleed]

Originally Posted by el Filou

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?

Thank you so much for replying me.
It is very important to me to know that my rtx 2070 can do other hardware decoding different of Cuvid!
Now I know that I've some problem.

Yes, my mobo (Asus H110M-K D3) has an onboard gpu.
Now I'm trying to find a way to turn off this graphic card.
Yesterday I've read the user manual but it seems there is no way to turn off it....

In the windows screen control panel I've set to use only the nvidia card but all remains the same... The only acceleration that works for me remains Cuvid...

[madjock]

What nVidia drivers are you using ?

Put it in D3D11 and native and Full Screen mode as well and post a screenshot, there is no reason this should not work.

The other GPU should not really matter, If you are plugged into the nVidia card with an HDMI cable then it should be fine, you should be able to disable it in the BIOS somewhere, you could probably do it in device manager as well I would imagine.

[Dogway]

I don't know if it's an issue, on a 1440p, I have for 1080p sources set up the Image Upscaling to NGU Standard (double) and "if any more scaling needs to be done" to Lanczos3 AR, yet the OSD shows me Jinc AR. Tried to toggle some settings but it's pretty much stuck to Jinc AR.

[Warner306]

Originally Posted by tp4tissue

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..

The Martian is supposed to have some banding in the sky. This is well known and is why this disc is often used to test debanding solutions on TVs.

[Warner306]

Originally Posted by Dogway

I don't know if it's an issue, on a 1440p, I have for 1080p sources set up the Image Upscaling to NGU Standard (double) and "if any more scaling needs to be done" to Lanczos3 AR, yet the OSD shows me Jinc AR. Tried to toggle some settings but it's pretty much stuck to Jinc AR.

It sounds like image doubling isn't active. There is no upscaling after doubling 1080p -> 1440p, only image downscaling.

Set activate doubling to "...only if any upscaling is needed."

[Dogway]

Originally Posted by Warner306

It sounds like image doubling isn't active. There is no upscaling after doubling 1080p -> 1440p, only image downscaling.

Set activate doubling to "...only if any upscaling is needed."

mmmhhh I understand, I thought that "if any more scaling needs to be done" setting was a fallback of "activate doubling... only if scaling factor is 2.0x or bigger". So do I have to set this rule (2.0x or bigger) explicitly in the rules box? I don't want luma doubling for small upscales.

[Warner306]

If you set it to 2.0x, image doubling wouldn't activate and would fallback to Jinc. If you want another upscaler, create a special profile for 1080p content.

[huhn]

Originally Posted by Warner306

The Martian is supposed to have some banding in the sky. This is well known and is why this disc is often used to test debanding solutions on TVs.

isn't it the other way around the sky in the movie is know to produce banding with bad processing that doesn't mean only a Tv with debanding can show it without major banding.

AFAIK only sony has an extra option for debanding.

[Warner306]

No, I'm pretty sure every TV shows some banding in certain portions of that movie, but some are far worse than others. Many TV manufacturers now include debanding and denoising filters in their TVs.

[huhn]

interesting so these test are done with active post processing like denoising that's present on TV for like 15 years.

if the Tv with less banding use post processing debanding to fix the issue. which is a risky i now a BD where even debanding low in madVR is remving a lot of details.

this is about HDR too right? so there is so many ways to create banding just with bad processing...

[tp4tissue]

Originally Posted by huhn

interesting so these test are done with active post processing like denoising that's present on TV for like 15 years.

if the Tv with less banding use post processing debanding to fix the issue. which is a risky i now a BD where even debanding low in madVR is remving a lot of details.

this is about HDR too right? so there is so many ways to create banding just with bad processing...

Somebody kill me, I'm never going to get Greatiest image...