madVR - high quality video renderer (GPU assisted)

[e-t172]

Originally Posted by huhn

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.

I watch big-budget SDR Blu-rays on a ~4000:1 display and I keep madVR's debanding enabled at all times, otherwise I regularly get scenes where things very obviously look like crap. I don't know if that's just because of personal sensitivity, Blu-Ray production chains being screwed up, or if that's a fundamental format limitation because I'm watching a 8-bit undithered source on a >1000:1 display. (I strongly suspect it's the latter. Hopefully with 10-bit sources I will not have to keep that debander enabled any longer.)

[huhn]

BD are clearly dithered to 8 bit.

not saying all are but they clearly are dithered.

the case where madVR deband low goes wrong very rare anyway.

[e-t172]

Originally Posted by huhn

BD are clearly dithered to 8 bit.

not saying all are but they clearly are dithered.

Interesting. I thought dithering was not used when encoding to a lossy format such as H.264 because it would kill the compression efficiency? Maybe I just had bad luck with the Blu-Rays I've been watching.

[huhn]

the lossy encoding will do dmg to it but with typical BD bitrates you can encode it. adding noise is even or was even used to trick and stop the encoder from blocking banding but not sure if this was done in professional cases.

feel free to post a short sample.

[Dogway]

madVR has no nearest neighbor upscaling right. I thought that for some 720p technical/tutorial videos (screen captures) quality stands better than bloating it with antialiasing filters.

[Asmodian]

I would disagree, NGU works quite well for that content.

If you do need bigger original pixels for some reason you can enable Nearest Neighbor by setting keyboard shortcuts for it. There is a "set to Nearest Neighbor" option for chroma upscaling, image upscaling, and image downscaling.

[mclingo]

Originally Posted by tp4tissue

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

weve all been there mate, its really easy to get caught up in all of this hoping to find PQ nirvana.

The RX 580 is a good card for the money right now and drivers are stable and reliable for 8bit/10bit HDR/3D and 23,976 playback - stick with it a while.

[tp4tissue]

Originally Posted by mclingo

weve all been there mate, its really easy to get caught up in all of this hoping to find PQ nirvana.

The RX 580 is a good card for the money right now and drivers are stable and reliable for 8bit/10bit HDR/3D and 23,976 playback - stick with it a while.

But huhn be like, Buy 2080TI .. NGU .. the future is now !!

[Dogway]

Originally Posted by Asmodian

I would disagree, NGU works quite well for that content.

If you do need bigger original pixels for some reason you can enable Nearest Neighbor by setting keyboard shortcuts for it. There is a "set to Nearest Neighbor" option for chroma upscaling, image upscaling, and image downscaling.

Thank you, that will work. NGU at 40cm of a 27" monitor looks like warped plastic, no offense to NGU I use for movies and everything else but for tutorials or such specially 720p (multiple of 1440p) works nice, crisp untouched video.

[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?

I've deactivated the integrated GPU onto my mobo but the problem persists.

Originally Posted by 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.

I've discovered what is my problem.
I've performed my yesterday tests with MPC-HC (last version) using external LAV filters just installed (0.73.1).
And with this chain I was only able to activate hardware accelleration with CUVID.

Tonight I've set MPC-HC to use it's internal LAV filters (ver. 0.70.2.1 -git) and now I've hardware decoding with CUVID, DXVA and DXVA copy-back.



Maybe internal LAV filters are too old (ver. 0.70.2.1 -git) and don't have D3D11 decoding.

After that I've installed Kodi DSPlayer (latest version).
With it's internal Lav filters (I'm not able to see what version are) I finally can activate D3D11 hardware decoding.

So with DSPlayer and it's internal filters I can have hardware accelleration with Cuvid, DVXVA, DXVA copy-back and D3D11.

I'm happy about it.

Remains the question why I've this situation with the newest Lav filters (0.73.1) ...?

My Nvidia drivers are: 417.71

Is there someone that has RTX2070 + nvidia drivers 417.71 + Lav filters 0.73.1 without any hardware accelleration limitation?

thank you so much.

[tp4tissue]

Originally Posted by actarusfleed

I've deactivated the integrated GPU onto my mobo but the problem persists.



I've discovered what is my problem.
I've performed my yesterday tests with MPC-HC (last version) using external LAV filters just installed (0.73.1).
And with this chain I was only able to activate hardware accelleration with CUVID.

Tonight I've set MPC-HC to use it's internal LAV filters (ver. 0.70.2.1 -git) and now I've hardware decoding with CUVID, DXVA and DXVA copy-back.

Maybe internal LAV filters are too old (ver. 0.70.2.1 -git) and don't have D3D11 decoding.

After that I've installed Kodi DSPlayer (latest version).
With it's internal Lav filters (I'm not able to see what version are) I finally can activate D3D11 hardware decoding.

So with DSPlayer and it's internal filters I can have hardware accelleration with Cuvid, DVXVA, DXVA copy-back and D3D11.

I'm happy about it.

Remains the question why I've this situation with the newest Lav filters (0.73.1) ...?

My Nvidia drivers are: 417.71

Is there someone that has RTX2070 + nvidia drivers 417.71 + Lav filters 0.73.1 without any hardware accelleration limitation?

thank you so much.

Finally it works.. did you calibrate the monitor yet ? Bring out that fine detail.

[ryrynz]

Originally Posted by Dogway

Thank you, that will work. NGU at 40cm of a 27" monitor looks like warped plastic.

I believe Asmodian would've been referring to NGU AA.. At least I hope he was, as this was what I was going to suggest before I decided to just let some one else answer.

[nsnhd]

Originally Posted by Asmodian

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.

That's interesting, I'm mostly using DXVA2 Native with my GTX 1060 and haven't noticed that so far. On which scenes can I see such damages clearly? So, should I definitely change to D3D11 Native ? PotPlayer doesn't like D3D11 Native much.

[huhn]

the usual chroma test image should do.

or you just press control+shift+altf12 until it shows Cr or Cb after that you can press control+shift+alt+t to toggle deinterlancing the image should get very soft and should move a around a bit.

for the fairest comparison make sure both use the same chroma scaler.

[Sunset1982]

Hey guys, I will do a rebuild of my two pc's. one for gaming and one for htpc use wirh an lg c8 oled tv. therefore I got a rx vega 56 and a gtx 1070. what card would you guys prefer for htpc use? are there any know driver problems with the latest nvidia drivers in terms of 23,976 and custom resolution, hdr switching or any other known issues?

[Warner306]

Nvidia drivers will vary per release. Some do have issues with custom resolutions and HDR switching, but others don't. 12-bit custom resolutions simply do not work with madVR, but may work with the Custom Resolution Utility (CRU).

I don't know of anyone who uses the RX Vega 56 with madVR. You should try both and report back on the performance of the Vega 56.

[actarusfleed]

Hi guys,
Can someone send me a command line to use different presets into madvr?

I want to create different presets for:

1080p@23/24fps
1080p@50/60fps
2160p@23/24 fps
2160p@50/60fps

Thanks a lot.

[madjock]

Originally Posted by actarusfleed

Hi guys,
Can someone send me a command line to use different presets into madvr?

I want to create different presets for:

1080p@23/24fps
1080p@50/60fps
2160p@23/24 fps
2160p@50/60fps

Thanks a lot.

https://forum.kodi.tv/showthread.php...942#pid2238942
6. SAMPLE SETTINGS PROFILES & PROFILE RULES

[clsid]

Originally Posted by actarusfleed

Tonight I've set MPC-HC to use it's internal LAV filters (ver. 0.70.2.1 -git)

Update to latest version MPC-HC 1.8.4. That includes newest LAV Filters and also properly supports D3D11 with internal codecs.

[VBB]

Originally Posted by Sunset1982

Hey guys, I will do a rebuild of my two pc's. one for gaming and one for htpc use wirh an lg c8 oled tv. therefore I got a rx vega 56 and a gtx 1070. what card would you guys prefer for htpc use? are there any know driver problems with the latest nvidia drivers in terms of 23,976 and custom resolution, hdr switching or any other known issues?

This would actually be a great opportunity for you to test AMD 10-bit output with your OLED. 12-bit output with Nvidia shows some nasty banding, which is why 8-bit output is recommended for both LG 7 and 8 series. I'd be very interested to see if 10-bit shows that same banding.