Considering, that PQ is absolute brightness coding, I don't see how this makes any difference? A mastered to 4000nits image will ask for 4knits brightness from the display, however that number appeared in the distribution channel. Whether mastered to it or scaled up afterwards.
Now, it will depend much more on the display system, whether it can fulfil that request or needs to start bending the gamma knee to fit into available brightness. Or clip, as some do.
Don't you like that this time they set the standard with significant headroom in the color volume, not like the SDR standard we were crammed to since WWII times? Let us stick to the 2 going gammas - PQ and HLG - and 2020 color space as definition for HDR then. It denotes on the encoding level, that we are dealing with a new visual standard, that requires new playback chain.
We'll see, not long to go to be able test, if their promises hold. I hope it will go significantly smoother than current manual calibration. More along the ways we can calibrate our computer screens today.
Please explain me the purpose of this processor? As of now, I understand it to be a similar virtualizer or post-processor, like there are hordes around - surround upmixers create 7.1.4 magic out of stereo music, DSEE HX makes HD-audio-from-MP3, virtual surround sound, virtual height channels place speakers to places where there are none etc, etc.
To me, anything physical beats virtual. Especially if one tries to recreate the "original information" that was thrown away in a compression process to begin with.
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