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Discussion Starter #1 (Edited)
Hello everyone and thank you for reading me. [Edit : attachments removed]

As stated in the title I'm having trouble getting HDR content from MPCHC+Madvr to my Samsung HDR SUHD TV.

The screenshots attached are showing my madvr settings, which i think are correct but I'm not sure at all.

When I play a 4k HDR 10 bit video, the TV doesn't show the HDR logo that it shows for every other HDR content I play, which means it doesn't get it as HDR.

The colors as some screenshots can show are kind of washed out, and the light intensities are clearly SDR.

Now I've found a workaround, and it seems that madvr should be able to do this automatically but it doesn't :

I've got the display mode automatic switch enabled in madvr to match the framerate of the film on my tv.

So in this case, it automatically switches to 23 fps.

When this happens i'm allowed to change the nvidia output color depth to 12 bpc, and the windows HDR and Advanced Color switch to ON. (as shown in the' screenshots)

This makes my TV SHOW the HDR logo. (screenshots)

But the colors are even more washed out in windowed view for MPC, since madvr doesn't passthrough **** unless it's using the fullscreen exclusive mode.

BUT when I swithc the video to fullscreen, it seems that the lightness of the colors really IS HDR, but everything is RED. (photos of my creen attached)

So I don't know what I'm getting and I don't know how I can get HDR whenb I play a video but normal windows colors when I don't, since the HDR windows setting shows terrible, washed out colors on everything except fullscreen reddish MPC HC.

I don't knoiw if I've been clear enough but thank you for your help !
 

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You're probably only missing this:


You also need to watch it fullscreen, HDR passthrough does not work windowed.

If it's still red looking, that's because you are playing a fake HDR upscale of Rogue one ( this movie doesnt exist in UHD-BD). You should stay away from Visionplushdr releases, he's FOS.

Start by playing LEGAL HDR demo to see if it's working properly:
http://demo-uhd3d.com/fiche.php?cat=uhd&id=159
 

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Discussion Starter #3
You're probably only missing this:


You also need to watch it fullscreen, not windowed.

If it's still red looking, that because you are playing a fake HDR upscale of Rogue one ( this movie doesnt exist in UHD-BD). You should stay away from Visionplushdr releases, he's BS.
Thank you for your answer I appreciate it very much.


But I am very sorry that I vasn't very clear, english isn't my native language. So I've already activated the automatic exclusive mode, in fact I already stated in my original post that the exclusive mode worked.

For example : when I don't mess with the windows HDR option and Nvidia 12bpc : I get a normal SDR whether I am in windowed OR in fullscreen.

When I turn nvidia's 12bpc on, but leave the windows HDR and advanced color setting off, I get the same result.

BUT when I turn on both nvidia 12bpc and windows HDR, I get VERY washed out colors on desktop and MPCHC windowed, AND an HDR looking video when in exclusive fullscreen... but with a very strange tint of RED.... Also, this is the only way to get my tv show the HDR logo and display a message that says "This is HDR !"

Again, very sorry if I don't say things very clearly
 

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hdr doest work in windowed mode, only fullscreen exclusive mode using madvr. Windows 10 Movies and tvs app can play hdr video windowed and fullscreen.

Just try with a real hdr video (not the fake Rogue one upscale).
http://demo-uhd3d.com/fiche.php?cat=uhd&id=159

English is not my native language either.. sorry if i misunderstood you
 

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oui, je suis Québécois.

Hdr not working at all in fullscreen exclusive mode or is it just the red thing again ??
Did you activate HDR in Windows display setting ?You have to do it manually everytime you play an HDR video.

what's your GPU ?
 

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Discussion Starter #7
Ok faisons cela en Français pour le moment.

Donc, j'ai bien compris qu'il faut être en plein écran pour que ça marche, mais je donnais les exemples en mode fenêtré à titre comparatif, pour bien montrer qu'il y a une différence entre fenêtré et plein écran, justement quand le HDR semble fonctionner.

En l'occurrence ça ne marche pas avec la vidéo test parce qu'elle est en 60hz et ma télé ne peut pas faire du 10bit 60Hz.
 

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Discussion Starter #8
J'ai remarqué en effet qu'il fallait activer manuellement le HDR dans les paramètres windows, et c'est relou, ce pourquoi ça ne marche pas en 60Hz parce que la télé ne le supporte pas donc windows ne me permet pas de l'activer.

quand je l'active, la télé passe en HDR, tout a l'air de marcher, sauf le fait que la bureau windows devient affreux ainsi que tout le reste du coup... C'est quand même dommage qu'il n'y ait pas une fonction de dither pour activer le HDR en permanence, ou alors une activation permanente qui ne s'activerait réellement que quand une video HDR est jouée.
 

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Discussion Starter #9
En forçant le HDR j'ai réussi à bidouiller pour voir la video test en HDR mais j'ai toujours le problème avec le rouge, cela dit c'est beaucoup moins maquré mais par exe:ple pendant la scène ou on voit le soleil passer à travers une fenêtre et des gens, ou la grenouille, on voit bien que le rouge est oversaturé
 

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Ta tv ne supporte pas 60hz mais elle supporte HDR??? **Samsung KS8000 est meme 120hz en frame interpolation.
Ton cable HDMI ne supporte p-e pas le débit, mais ta TV est définitivement 60hz.
Il faut des cables certifiés HDR comme ceux de MONOPRICE : https://www.amazon.ca/Monoprice-Cer...498499186&sr=8-1&keywords=monoprice+hdr+cable
Si tu as l'option HDR dans windows display setting, j'imagine que ton GPU est HDMI 2.0 et compatible 4k/60/HDR

Si tu joue la video HDR dans l'app de windows10 ''Film et télé'', es ce que le rouge est oversatured aussi ?

Oui pour l'instant le bureau windows en HDR est tres pale et bizare. Le prochain Fall Creator Uupdate de Windows10 devrait corriger tout ce qui ce rapporte au HDR.

en passant tu devrais supprimer tes screenshots de Rogue one, on ne peut pas parler de contenu illégal sur se site.

 

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The movie you illegally downloaded and are attempting to play is fake. It's a bluray upscale and fake hdr metadata added.

So no, it's not going to work very well is it?
 

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Make sure your use the 32bit version of MPC-HC if you want HDR metadata passthru. Took me a while to figure it out.
 

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Make sure your use the 32bit version of MPC-HC if you want HDR metadata passthru. Took me a while to figure it out.
No it doesnt matter, I'm using the 64bit version of mpc / madvr and lavfilters. HDR is working perfectly.
 

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I've just talked to Microsoft and NVidia. And the current situation is as follows:

1) In Windows 10 Creator's Update there's a new option in the OS display settings dialog named "HDR and Advanced Color". If you turn this option off, your TV will always be in switched into SDR mode. If you turn this option on, your TV will always be switched into HDR mode. Windows does *not* support dynamically switching HDR mode on/off while you're playing an HDR movie (or playing an HDR game)! It's currently not supported, and there are no plans to add support for that. Basically Microsoft believes that if you want to use HDR at all, then you want your PC to always drive your TV via HDR mode.

2) If you switch the "HDR and Advanced Color" option off, your TV will always receive SDR from the PC. If you play an HDR movie in this situation with the madVR option "passthrough HDR content to the display" activated, the OS will perform a low quality HDR -> SDR conversion behind madVR's back. Consequently, HDR content will look "ok", but the quality is not really good. SDR content will look "perfect", though.

3) If you switch the "HDR and Advanced Color" option on, your TV will always receive HDR from the PC. If you tell madVR to "passthrough HDR content to the display" in this situation, HDR movies should look "perfect". If you play SDR content in this situation, the OS will convert SDR to HDR behind madVR's back. Consequently, SDR content will look "ok", but it will not be perfect.

4) Currently HDR and fullscreen exclusive mode is a problematic combination atm. It's partially the fault of the OS, partially of the GPU drivers, partially of madVR. It's not clear yet if this will be fixed, or when. Generally, Microsoft wants to get rid of fullscreen exclusive mode. It might suddenly disappear in a future Windows 10 version.

5) Nvidia comes to the rescue of all HTPC users who want perfect quality for both SDR and HDR content: Nvidia's private HDR API allows madVR to dynamically switch the TV into and out of HDR mode, as needed.

6) The current madVR build has a bug where Nvidia's private HDR API is only called properly in the 32bit madVR version, but not in 64bit. This will be fixed in the next build.

7) All post-Creator's-Update Nvidia drivers have a bug which result in madVR being able to switch the TV into HDR mode, but switching the TV back into SDR mode fails. You can work around this by either using Windows 8.1 instead of Windows 10. Or by installing older Nvidia drivers. E.g. with Nvidia driver 376.33 dynamic HDR switching works perfectly fine in Windows 10. Nvidia is aware of the bug in newer drivers and plans to fix that soon.

As it stands right now, for all Windows users who want to do both SDR and HDR playback in perfect quality, I can only recommend Nvidia GPUs, because only Nvidia's private API allows madVR to dynamically switch the TV between SDR HDR. I'm talking to Intel, maybe they will add a private API, too. Unfortunately my AMD contacts have gone silent.

I still recommend Windows 8.1 as the best media play OS right now, as I've done for months. Windows 10 still has many stability issues, furthermore Microsoft is going into a direction which is very bad for HTPC users.
 

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P.S: Just got an email from Microsoft. Maybe not all hope for the Windows 10 HDR API is lost just yet.


Thanks for doing this - it's nuts how broken it is yet works 100% on xbox one

I hate having to choose between 4k forza 3 or hdr 900p


Sent from my iPhone using Tapatalk
 

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Latest madVR v0.91.11 out now:

http://madshi.net/madVR.zip

Should work well now with Nvidia GPUs, at least, even with newest drivers. Just make sure you have "HDR and advanced color" turned off.

thank you so much for this update, it seems to be working now.
My tv is now switching in HDR without having to turn on the win10 HDR slidder.

Edit: it's not switching to HDR in FSE, so i think i'm getting some banding since we cannot get 10bit output in windowed mode.
 

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Confirm. My display is also switching HDR and advanced color ON when title is started and back OFF when closed.
GTX 960 - 22.21.13.8476
RGB Full or YCbCr Limited.
Only windowed, FSE not working.
No longer see NVidia API vs Windows API setting.


Very, very, nice to see the HDR dynamic switch AT LAST!
Thank you very much madshi. You are answering the community and you are very close.
 

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FSE not working seems strange. Can you guys try an older driver? E.g. 376.33? Does FSE work then?

You should get no banding with 8bit output, thanks to madVR dithering. However, 8bit output will have slightly higher dithering noise floor than 10bit.
 
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