Originally Posted by King Richard
Some of you might be interested in this new CNet article:
>>> HDR is TV's next big format war
I somewhat disagree with the Title and premise of the article however.
I don't really see it as a "format war" (like Blu-ray vs HD-DVD or
VHS vs Betamax) because I believe that both
formats will continue to co-exist side-by-side like Dolby Audio and DTS Audio currently do.
Again, as I sated in a previous post, they are currently talking about the possibility of adding dynamic metadata to HDR10. So if/when this does happen, HDR10, depending on how well this is implemented, will probably look very similar to Dolby Vision. It will certainly narrow the "gap" between the two.
so, I generally agree here with Richard. A little background, in that I am an Electrical and Software Engineer. I also do full Systems Engineering. I often work with control systems, embedded processing, and video systems. I am not a "TV" expert, by all means. I like to watch them, though
At it's heart, Dolby Vision is a Standard. plain and simple. It just so happens that DV is a standard that uses a bit of silicon to control the output, taking that part out of the manufacturers' hand. This certainly can be a good thing, but like all standards, there are no standards. Every MFR can implement a standard differently, incorrectly, etc... I personally deal with this quite often. The only way any standard can be guaranteed is if the governing body does QC on it themselves. HDMI is a REALLY good example of how standards can be totally borked.
Regarding the display management component that has been soooo hotly contested in this little thread, without seeing an actual specification document, we can't really draw too many conclusions about what that is. From the dolby whitepaper, which is the only valid source on this topic, IMO, the DISPLAY MANAGER consists of the Display Composer. It's not evidently clear what else makes up that piece and is HIGHLY likely to be a typo. For all intents and purposes, the white paper means Display Manager - DISPLAY MAPPER.
What is the Display Mapper? It is a tunable piece of gear that allows the tv manufacturer to adjust the outputs to meet the needs of the panel and other components of the tv. From the graphic on Page 10, the Display Management/Display Mapper is muxing the actual video data stream with the Metadata stream to create a correctly composted imaged + metadata for the actual display. it doesn't "take control" of the tv itself. The manufacturer still has control of the output of the DV engine. (This tuning point is listed on Pg 11 of the white paper, FYI).
A really important thing to note is that this DV output could be completely ripped apart by ANY manufacturer and further tweaked, modified, etc...
DV also doesn't appear to have much to do with manufacturers own internal engines that perform functions like upscaling, etc...
DV appears to HELP manufacturers achieve a standard HDR picture that they would otherwise have to spend a lot of time perfecting/integrating. I'd equate it much to using an NVIDIA board in a computer versus developing your own graphics subsystem (like in the old days). In no way does it dictate how a display looks. It just helps the MFR get there...
I'd expect to see most high end MFRs have DV work in conjunction with their own engines to deliver the best possible PQ for a particular set.
The biggest reason I think a number of set makers won't include DV.... licensing cost. I haven't seen any indication of how much the license will be or how much the chipset will be, but I bet it won't be cheap. Since HDR 10 and DV aren't that far apart, I would guess that many larger companies won't bother with it for awhile.
It's just my .02, but Dolby isn't taking over anything. they're providing a tool set. It can't hurt if it brings many of the sets into a similar realm of PQ, but it will in no way make all sets equal or look the same. cheap materials, bad QC, other factors will always trump this.