HDR Discussion Thread

[Penton-Man]

Originally Posted by DanBa

HEVC
HEVC... HEVC
HEVC...HEVC
HEVC...HEVC
HEVC...HEVC...HEVC

Kind of funny, looking back. I remember back in 2014, when if you red the posts/articles not just on AVS, but many other outside threads/forums and especially the mainstream video guru/reporter websites that consumers tend to gravitate to for info and then bring it onto the forums for discussion, for some reason, most hobbyists and AV blogger/journalists types preferred using the term h.265 back then.

Now it’s all HEVC this, HEVC that.

Finally.

[Penton-Man]

Originally Posted by Robert Zohn

So glad you posted this SVG video. I attended SVG's summer...

Originally Posted by Penton-Man

https://www.youtube.com/watch?v=Mt_ZEIgQC-0#t=7m57s

Working with that ^ clip which Pat from Dolby likes so much -> https://forum.blu-ray.com/showthread...r#post11977281.

As an addendum to thee above ^ with regards to standards organizations’ work on a professional level, I’m disappointed to inform readers that the ad hoc (11) group’s (mandated for one thing to study content characteristics and identify appropriate test sequences for HDR/WCG visual testing) efforts to secure availability of a consumer HDR display (e.g., a Samsung JS or KS9500, etc. or LG OLED) for the Geneva meeting currently in progress now, have not met with success to date. AHG11 views it as critical to assess the target market performance of coding methodologies on displays that are most likely to be used by consumers for viewing HDR content.

[jono3000]

Originally Posted by Penton-Man

lol, guilty as charged …..on both counts ( and my heart thanks me evidently by what’s shown on my scan ) but, keep in mind, bikers are better informed than what you might think at first glance…

https://vimeo.com/136569778


2nd glance …..

https://vimeo.com/143092765

Some of my buddies (various different company employees, as well as a couple of gifted independent contractors) with yours truly taking a moment to pose for a photo at a Group Ride meet up …..

Any of these guys from Disney?

Sent from my Nexus 6P using Tapatalk

[Robert Zohn]

@Penton-Man, hope you will attend my 2017 NAB presentation on the new TV System and post the video!

[Penton-Man]

Originally Posted by jono3000

Any of these guys from Disney?

One, but they all tend to be tough nuts to crack. I’m giving it another try this weekend.

[Penton-Man]

Originally Posted by Robert Zohn

@Penton-Man, hope you will attend my 2017 NAB presentation on the new TV System and post the video!

I just hope Putin’s pals don’t hack NAB next. At the minimum, we’d have to change the name from NAB to RNAB.

[Robert Zohn]

I have Jessica Jones and Luke Cage in Dolby Vision on my side.

[Penton-Man]

Originally Posted by Geoff D

You probably don't keep up with all the respective threads for individual titles (all that bike riding's gotta tire a man out).....

I’m not thee only one , there are other cycling enthusiasts out and about, e.g.….https://twitter.com/gochya

[Penton-Man]

Originally Posted by Penton-Man

Some of my buddies (various different company employees, as well as a couple of gifted independent contractors) with yours truly taking a moment to pose for a photo at a Group Ride meet up …..

Another one….https://www.linkedin.com/in/deklund. Although not pictured in that particular photo above, when my friend is not out riding the southern ridge, he’s visited that ^ rest stop more times than I can remember.

[HeatEquation]

How credible is this site?

However the good news is that the TV manufacturers should be able to upgrade the HDMI 2.0a connections on their TVs to HDMI 2.1 if they so wish. It's still early days and how much support there will be for HDR 10 with dynamic metadata will largely depend on how successful Dolby are in promoting their version of HDR

https://www.avforums.com/news/samsun...ces-2017.13282

[FilmFreakosaurus]

Originally Posted by HeatEquation

How credible is this site?



https://www.avforums.com/news/samsun...ces-2017.13282

The operative words are "if they so wish." Part of HDMI 2.1 is higher bandwidth. If "older" 2.0a chips can be made to at least accept dynamic HDR10 metadata then that would be great. However, most manufacturers will make you buy a new TV even if they can add new code to a firmware update.

[HeatEquation]

Originally Posted by FilmFreakosaurus

The operative words are "if they so wish." Part of HDMI 2.1 is higher bandwidth. If "older" 2.0a chips can be made to at least accept dynamic HDR10 metadata then that would be great. However, most manufacturers will make you buy a new TV even if they can add new code to a firmware update.

Well, Samsung has been working on dynamic HDR10 and have said that their TVs, starting with the 2016 models, will be firmware updated to support it. So I'm not worried about that.

This article suggests that upgrading to HDMI 2.1 via firmware update is possible, which is interesting.

[FilmFreakosaurus]

Originally Posted by HeatEquation

Well, Samsung has been working on dynamic HDR10 and have said that their TVs, starting with the 2016 models, will be firmware updated to support it. So I'm not worried about that.

This article suggests that upgrading to HDMI 2.1 via firmware update is possible, which is interesting.

But not all HDR pass-through chipsets can handle the greater than 18 Gbps bandwidth if the industry moves that way.

And I have a 2015 Samsung 4k TV with similar HDMI chips to their 2016 models yet I'm left out in the cold apparently.

[Richard Paul]

The ATSC 3.0 candidate standard for video was recently updated with sections on HDR and it supports both HLG and PQ.

http://atsc.org/standards/candidate-standards/

[Penton-Man]

Originally Posted by HeatEquation

https://www.avforums.com/news/samsun...ces-2017.13282

For inquiring technical minds, as opposed to the Dolby (parameter tone mapping) approach, Samsung’s solution is scene-based color volume mapping. Don’t have time to post a slide now, maybe later. Regardless, this will be explained in an upcoming SMPTE Standards webcast published on YouTube.

[Penton-Man]

Originally Posted by Richard Paul

The ATSC 3.0 candidate standard for video was recently updated with sections on HDR and it supports both HLG and PQ.
http://atsc.org/standards/candidate-standards/

Good news on ATSC 3.0.
Richard, this -> https://www.bloomberg.com/news/artic...-samsung-s-lee dominated water cooler conversation today.

[DanBa]

Originally Posted by Richard Paul

The ATSC 3.0 candidate standard for video was recently updated with sections on HDR and it supports both HLG and PQ.

http://atsc.org/standards/candidate-standards/

ATSC 3.0 will likely support PQ or HLG:

"The video transfer characteristics shall be signaled as one of the following: SDR, PQ, or HLG as specified in Sections 6.3.2.1, 6.3.2.2, and 6.3.2.3, respectively."
http://atsc.org/wp-content/uploads/2...Video-HEVC.pdf


Concerning PQ, ATSC 3.0 will likely support HDR10 without static metadata, or HDR10:

"The bitstream may contain SEI messages with payloadType value equal to 137. This allows for the optional transmission of the Mastering Display Color Volume SEI message. It is not mandatory to transmit the Mastering Display Color Volume SEI message.
The bitstream may contain SEI messages with payloadType value equal to 144. This allows for the optional transmission of the Content Light Level Information SEI message. It is not mandatory to transmit the Content Light Level Information SEI message.
For more information regarding Mastering Display Color Volume metadata see SMPTE ST 2086 [21]. For more information regarding Content Light Level Information metadata (MaxFALL and MaxCLL) see CTA-861-G [22] Annex P."


ATSC 3.0 will likely support HFR 120 fps (HEVC Level 5.2) or current HDR frame rate (HEVC Level 5.1: up to 60 fps):

"HEVC encoded ATSC 3.0 Progressive Video shall comply with the following constraints:
• The bitstream shall conform to HEVC Main 10 Profile or HEVC Scalable Main 10 Profile, Main Tier, Level 5.2. Note that when a bitstream is indicated to conform to a level that is lower than Level 5.2, it is also considered as conforming to Level 5.2.
• The color subsampling shall be 4:2:0."





An ATSC 3.0-compliant TV should have:
. a capable (i.e. powerful enough) TV System-on-Chip, likely with 10-bit HEVC Main 10 Level 5.1 hardware decoding or with 10-bit HEVC Main 10 Level 5.2 hardware decoding, for HDR processing / display adaptation
. an ATSC 3.0 physical layer chip for broadcast reception.

[HeatEquation]

Originally Posted by Penton-Man

For inquiring technical minds, as opposed to the Dolby (parameter tone mapping) approach, Samsung’s solution is scene-based color volume mapping. Don’t have time to post a slide now, maybe later. Regardless, this will be explained in an upcoming SMPTE Standards webcast published on YouTube.

Will definitely check it out. Would be interesting to hear the benefits and advantages of both methods.

[DanBa]

As far as I understand, the video parts of ATSC 3.0 (candidate standard) and DVB UHD Phase 2 are basically the same, i.e. PQ/HLG HDR, HFR.
https://www.dvb.org/standards#standardgroup_24

PQ10 + optional static metadata = "HDR10"









A DVB UHD Phase 2-compliant TV should have:
. a capable (i.e. powerful enough) TV System-on-Chip, likely with 10-bit HEVC hardware decoding (up to 60 fps) or with 10-bit HEVC Main 10 Level 5.2 hardware decoding (up to 120 fps), for HDR processing / display adaptation
. a DVB T2 / S2 physical layer chip for broadcast reception.

The HEVC bitstreams of DVB UHD Phase 2 / ATSC 3.0 can also be delivered over IP networks.

[Penton-Man]

Originally Posted by DanBa

Did you attend Virginie’s DVB webinar this morning? I’m normally on the road dealing with SoCal traffic that time of day. Dan, what time zone are you in?