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HDR TV shall support all HDR formats.

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It seems like, this will turn the calibration process on its head. I guess, it kind of forces the creation of disc based pattern's for DV calibration. Now you have to be concerned about HDMI RGB errors.

Also, if the Sony's on support MEL, does it affect PQ for streamed content?

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Discussion Starter #362
Dual stream Dolby Vision & Dolby Vision TV capable of single stream decoding => Dolby Vision MEL => 10-bit PQ video signal

Dual stream Dolby Vision & Dolby Vision TV capable of double stream decoding => Dolby Vision FEL => 12-bit PQ video signal
 

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Discussion Starter #363
Are you representing "streaming video" (top right) and "external 4k blu-ray player" (left) together on the same diagram, in each case? There seem to be two paths.
They are two different paths with the same main processing functions:



1. Decoding in an external Dolby Vision decoder

An external Dolby Vision decoder can be:
. a UHD Blu-ray player such as the Cambridge CXUHD or the Oppo UDP-203
. a UHD streaming player such as the Apple TV 4K or the Amazon Fire TV Stick 4K
. a UHD streaming / UHD Blu-ray player such as the Panasonic DP-UB9000 or the Sony UBP-X700.

single stream Dolby Vision Profile 5 AV file stored on streaming server >> Internet >> external Dolby Vision decoder: HEVC decoder: decoding of the HEVC video stream > composer: reassembling the video signal from the decoded image and the metadata > Dolby Vision video signal >> HDMI >> Dolby Vision TV: display management


2. Decoding in a Dolby Vision TV

single stream Dolby Vision Profile 5 AV file stored on streaming server >> Internet >> Dolby Vision TV: HEVC decoder: decoding of the HEVC video stream > composer: reassembling the video signal from the decoded image and the metadata > Dolby Vision video signal > display management


If a Sony TV is faced with a double-stream dolby signal, presumably it can't decode it. So double-stream dolby signal will completely stop being used by everyone, in case the customer only has a Sony TV?
It is my understanding that single instance decoding is for a short term requirement. Multiple instance decoding should be the norm.
Anyway, there is the Moore's law: the doubling of installed transistors on silicon chips occurs closer to every 18 months.
 

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thanks for your explanations!

It is my understanding that single instance decoding is for a short term requirement. Multiple instance decoding should be the norm.
Anyway, there is the Moore's law: the doubling of installed transistors on silicon chips occurs closer to every 18 months.
Wow, so Sony/Dolby are going to cast their current customers aside in a cavalier manner? Multiple instance decoding can now never be the norm, as long as those TVs are in use.
 

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Discussion Starter #366

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Discussion Starter #369
HDR10+, Creative Intent and Display Adaptation

"HRD10 and HDR10+ are open standards, so lack the relative guarantee of image playback, with each display manufacturer defining their own internal HDR processing." [Light Illusion]
https://www.lightillusion.com/hdr_calibration.html

"HDR10+ does not specify how the metadata gets utilized by the target display." [Penton]
https://forum.blu-ray.com/showthread.php?p=15665093#post15665093

"The open-source nature of HDR10+ means that manufacturers are free to develop the technology themselves, bringing their own expertise to the implementation of dynamic metadata." [Steve Withers]
https://www.avforums.com/article/what-is-hdr10-plus-dynamic-metadata.13884

"HDR10+ does not specify implementations." [HDR10+ Technologies, LLC]
http://mile-high.video/files/mhv2018/pdf/day1/1_10_Mandel.pdf




Due to the lack of HDR10+ display adaptation standardization across manufacturers, a film can look quite different on HDR10+ TV from different manufacturers.

Hopefully in order to fix this very loose interpretation of the original creative intent, a reference implementation of HDR10+ display adaptation (i.e. HDR10+ Color Volume Mapping) will emerge and will be universally adopted. And this HDR10+ reference implementation will allow creative artists to preview and adjust HDR10+ at the mastering post-production time.

"In the making of commercial images the only thing that matters is what happens at the approval process. Everything that happens downstream of this should not alter this image. In other words, the "artistry" happens in mastering process and once approved, should be faithfully delivered to the end user." [Charles Poynton]
http://www.insightmedia.info/a-day-with-charles-poynton/
https://blog.pond5.com/7776-lighting-for-a-mood-making-the-most-of-key-color-and-contrast/
https://digitalsynopsis.com/design/film-movies-color-psychology/









The HDR mastering reference monitor (or more precisely the HDR media color volume) and the end user’s HDR TV usually don’t have the same color volume, hence the need for color volume mapping or display adaptation.
And more, there is a diversity of HDR TVs, i.e. a diversity of reduced color volumes to be adapted from a larger mastering color volume while respecting artistic creative intent approved at the mastering post-production time.

"If some viewing conditions change in one case, two identical stimuli with thereby identical XYZ tristimulus values will create different color appearances (and vice versa: two different stimuli with thereby different XYZ tristimulus values might create an identical color appearance)."
https://www.google.fr/search?q="col.....69i57j0l5.6959j0j9&sourceid=chrome&ie=UTF-8



The very same RGB value looks quite different on TVs with different luminance capabilities.
https://developer.apple.com/videos/play/tech-talks/502/



If the artistic intent is a given vivid red, the dynamic metadata associated to this vivid red image sent to the Color Volume Remapping of low luminance TV should convey parameters (i.e. supplementary color grading information) to adjust / increase the saturation of the color red to a given level.
This color saturation increase should be determined by the creative artists adjusting and making decisions on the appearance of the content based on the look of a reference TV (i.e. end-user TV having a reference HDR10+ Color Volume Remapping / reference HDR10+ display adaptation) at the mastering post-production time.
https://www.broadcastingcable.com/p...-4k-plus-and-corvid-4k-developer-cards-168701

 

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Discussion Starter #370
The Realtek RTD2872 Universal HDR SoC was announced at CES 2018.
Hopefully, Universal HDR TV will be announced at CES 2019.

https://www.avsforum.com/forum/465-...l-hdr-compliant-displays-13.html#post57055266

If this information is not an error, then the Vizio PQ will be the 1st universal HDR TV compatible with all currently operational HDR formats (namely HDR10, Dolby Vision, HEVC HLG HDR, VP9-HLG YouTube HDR, VP9-PQ [aka VP9-HDR10] YouTube HDR and HDR10+).
https://www.avsforum.com/forum/465-...l-hdr-compliant-displays-12.html#post56694654

"Despite the existence of a half dozen different HDR profiles, all will coexist through the use of EDID. We believe we must cooperate with all stakeholders."[Samsung]
"We should all just enjoy content in whichever format directors choose to use." [Dolby]
https://www.avsforum.com/forum/465-...l-hdr-compliant-displays-11.html#post56525092
 

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Discussion Starter #371 (Edited)
Panasonic DP-UP9000 Japan Limited

The new Panasonic DP-UP9000 Japan Limited is the same model as the existing one, but in an improved version.
https://av.watch.impress.co.jp/docs/news/1152864.html




It is a UHD Blu-ray player compatible with HDR10+ and Dolby Vision (and HDR10).




It is also a UHD streaming player supporting, among others, YouTube HDR and 4K HLG with the Digital Concert Hall streaming service of the Berlin Philharmonic Orchestra.
https://www.digitalconcerthall.com/en/news







https://www.phileweb.com/news/d-av/201811/13/45636_3.html
 

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Discussion Starter #375
Latest HDR

HDR ecosystem:
https://twitter.com/YoeriGeutskens/status/1069930426670682112



"The new HDR ecosystem tracker distinguishes the following parties:
1. TV brands & manufacturers
2. Peripherals
3. Streaming services
4. Broadcasters / operators
5. Movie studios
6. Movie studios' Home Entertainment divisions
7. Chipset makers
8. Encoding vendors"








 
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Discussion Starter #376
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The new Qualcomm Snapdragon 855 System-on a-Chip will support all existing operational HDR formats (namely HDR10, HEVC HLG HDR, VP9-HLG YouTube HDR, VP9-PQ [aka VP9-HDR10] YouTube HDR, HDR10+ and Dolby Vision).
https://www.qualcomm.com/news/relea...hip-snapdragon-855-mobile-platform-new-decade

[...]
The new Snapdragon 855 will come to most Android flagship smartphones in 2019.
Cool. I really don't think that the world needs SL-HDR1, does it? In fact I think adding yet another HDR format now, so late, is the last thing we need. No-one other than LG is ever going to support it.
 

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Discussion Starter #378
Snapdragon 8cx Compute Platform

Windows PC based on the new Qualcomm Snapdragon 8cx SoC will also support all existing operational HDR formats (namely HDR10, HEVC HLG HDR, VP9-HLG / VP9-PQ YouTube HDR, HDR10+ [2nd Gen HDR] and Dolby Vision [2nd Gen HDR]).
https://www.qualcomm.com/products/snapdragon-8cx-compute-platform
www.youtube.com/watch?v=T3dwEpEsJiI&t=34m32s



PC with the Snapdragon 8cx can connect up to two external 4K HDR monitors.



The Snapdragon 8cx, which is the most powerful Snapdragon SoC to date, is expected to begin shipping in commercial devices in Q3 of 2019.
 

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Will it decode the AV1 codec?
 

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Discussion Starter #380
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