Originally Posted by Scott Wilkinson
Apparently not. As I wrote in the article, Samsung demonstrated sending HDR10+ over HDMI 2.0. They said it was only the "important data" and that HDMI 2.1 is required to send full HDR10+ metadata, but the partial metadata got through via HDMI 2.0.
Originally Posted by video_analysis
It may require HDMI 2.1 if you want to feed HDR10+ from another device.
Originally Posted by Mashie Saldana
I can't imagine that is a requirement considering the 2018 Panasonic OLED's and UHD players will support HDR10+ it and they don't have HDMI 2.1.
Originally Posted by Tomeo
What do you mean by "partial metadata"/"important data" vs "full metadata"? By reading your article I've the impression that bying in 2018 a TV which is said to be HDR10+ won't propose in fact the full HDR10+ experience as "partial metadata" would mean restrictions due to the use of HDMI 2.0b. As we won't have any TV (LCD or OLED) with HDMI 2.1 connectors in 2018, sounds like it will be necessary to wait one extra year for the 2019 models that will bring the real HDMI 2.1 sauce capable of proposing the full HDR10+ experience for what it has been designed for. The 24kb trick over HDMI 2.0b is the perfect example of how messy is the HDR situation right now. If you don't pay attention to details, too bad for you, say bye bye to full HDR10+ compatibility.
Conclusion: if you buy a 2018 TV you'll be hoodwinked with partial HDR10+ metadata. Given the price of an OLED TV for example, that's just unaceptable! We're tired of all these unfinished standards and formats wars. You really need to go very deep into specs to find the devil and avoid a bad purchase. A real shame.
The whole HDR over HDMI situation is somewhat fluid isn't it?
We're in a situation where some of the HDMI improvements made as we move up the standards from HDMI 2.0a, to HDMI 2.0b, to HDMI 2.1 require hardware to support them (increased clock rates for example). However some of the improvements introduced to the standards are more to do with adding new signalling and don't necessarily require new hardware, and can thus be added via firmware to HDMI devices that only, on paper, supported older standards.
HLG was originally added to the HDMI 2.1 spec, yet lots of HDMI 2.0b HDR displays (and AVRs) have had HLG support added via a firmware update (and I believe it is now deemed an addendum to the HDMI 2.0b spec?)
It looks as if some of the dynamic metadata introduced with HDMI 2.1 is also being backported to HDMI 2.0b devices? AIUI the dynamic metadata support is how Sony are approaching DV, so rather than tunnelling dynamic metadata proprietarily (which survived HDMI 1.4b and HDMI 2.0a and b devices AIUI) the new Sony DV system sends it using the standardised dynamic metadata route (which HDR10+ also uses AIUI?) Or am I misunderstanding the Sony DV approach? (I think Sony have done this as it avoids having to implement the algorithms that extract the tunnelled metadata - which potentially required processing they didn't have available - either in CPU load or hardware?)
It does mean that the numbering scheme is NOT a good guide to knowing what your sources and displays actually support though... Having two totally different flavours of 'DV over HDMI' is going to get very boring very quickly...