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Author Topic: Conceptual problem with UHD features (Deep Color, Wide Color Gamut, HDR, DV)  (Read 6976 times)

Nice Monkey

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In my perception (but please convince me that I am wrong here) Q10 Pro UHD settings follow the wrong concept today.

I see choices for settings to choose  for Deep Color with 8-bit, 10-bit, HDR or SDR etc. This always must result in suboptimal views when changing from one movie to another with different recording characteristics.

What I would expect is  setup capabilities settings matching what the TV supports as (UHD) BD-players do:
- Deep Color support 1080P for 10/12 bit:   NO/10/12
- Deep Color support 2160P 10-bit:   NO/YES
- 24P support: NO/YES
- HDR10 support: NO/YES
- Dolby Vision support: NO/YES
- WCG 2010 support: NO/YES
Each setup change to be validated individually with a HDMI capabilities exchange confirming the specific feature is supported indeed . When not the TV goes blank and the player reverts the selected feature if not confirmed in time. This way the player knows for sure that all enabled features are supported by the TV and can avoid ever sending images to it causing problems by unsupported features.

a) The player should now play all movies adopting capabilities matching these settings automatically per individual movie.
b) Where and when needed material should be scaled down to match the TV capabilities where a feature is missing.
c) If not capable to downscale one or more missing features then it should give an appropriate  message that the material can not be played due to un-configured support by the TV attached.

I am pretty sure this problem will scale to a lot more (nasty) problems if it is not done this way as many different combinations will appear.
HDR Dynamic is the next feature on the horizon (introduced via HDMI 2.1 as again another extra capability)

Example 1: When setting my 1080P capable TV for Deep Color it gives me the option for 10-bit only. That is bad as BD movies are  typically 8-bit with 24P but some in fact are 60P with 12-bit.  In fact  PQ is affected in a negative sense when playing standard 8-bit BD material with 10-bit output which it does now.
My BD-players (Philips, Pioneer, Samsung) all switch Deep Color dynamically just as they do for 60P/24P. This exactly as should be done.

Example 2: http://www.futeko.com/newforum/index.php?topic=876.0
Sending HDR to a TV not supporting it causing serious problems as the consequence. Could even be causing problems on the TV connected.
« Last Edit: May 18, 2016, 08:51:46 AM by Nice Monkey »

Nice Monkey

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See attachment for the manual for the Panasonic UHD Blu-Ray Player. Remark: Manual is too big and not allowed as an attachment.
It has capabilities settings for 24P, Deep Color and HDR.

Not for Dolby Vision which is not mentioned at all. As it is optional it probably is not supported at least with the initial firmware. For Samsung it looks similar (no Dolby Vision mentioned there either).
« Last Edit: May 19, 2016, 03:07:16 PM by Nice Monkey »

magnifico

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Oh you are soooo wrong!
Dolby Vision is and was NOT advertized for none of them. So its a non issue.
AND none of them will ever get a firmware update for Dolby Vision since its not possible. That is said to be final.

_So be aware that you most probably will never ever a Dolby Vision video via UB900 or K8500.
Wait for generation2 of those players or LG, Oppo, Sony, Pioneer to enter the market. The are many rumors about a LG player later this year.
« Last Edit: May 19, 2016, 07:09:18 PM by magnifico »

Nice Monkey

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Oh you are soooo wrong!
Dolby Vision is and was NOT advertized for none of them. So its a non issue.
AND none of them will ever get a firmware update for Dolby Vision since its not possible. That is said to be final.

_So be aware that you most probably will never ever a Dolby Vision video via UB900 or K8500.
Wait for generation2 of those players or LG, Oppo, Sony, Pioneer to enter the market. The are many rumors about a LG player later this year.

You could be right but does not matter as Dolby Vision is not  the topic here. It is just one of the many UHD variables to be dealt with.  I mentioned it only as it is the one exception (it is missing)  to my suggested UHD related  setup parameter list. Reason the feature is not supported at all by current UHD 4K Blu-ray players.
« Last Edit: May 19, 2016, 09:23:43 PM by Nice Monkey »

Nice Monkey

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Good story about HDR10 versus Dolby Vision.:

http://www.cnet.com/news/dolby-vision-vs-hdr10-how-to-survive-the-hdr-tv-format-war/

It is once more wait and see. The HDR10 camp does a counter attack via HDR Dynamic but that required again new standards/features including HDMI 2.1 capabilities.
My ten cents say that Dolby Vision is going to win.

magnifico

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Yeah....I think so too.
But one needs to see that it is a golden time for journalists. You can write soooo much about that.
Already read many outrageous comments on that matter

 

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