HDR Discussion Thread

[Stevenn1992]

Originally Posted by ray0414

All 4k oleds have hdr . So I'm not sure what you mean.

Correct me if I'm wrong, but I believe a couple 2015*? Models did not have HDR. So in saying that, if I was going for either of those options 4KOLED without HDR, or 4KLED+HDR, are those at all close and who wins?

[surami]

Originally Posted by ray0414

i downloaded the video, but wont be able to watch it til a later time.

downloaded Jamess' new videos too, will also watch later.

I encoded a new one, now there aren't any missed frames, please report back.

[montyb]

Originally Posted by Stevenn1992

Can any of you answer which is the better option and why.

A. 4KOLED without HDR
or
B. 4K-LED with HDR

If you have or plan on purchasing UHD blu ray with HDR you should get a HDR abled set. Maybe save up more and get a 2016 4K OLED with HDR. It would be foolish to settle for a non-HDR set when you want to expand your viewing capabilities. Your eyes will thank you later! I am kicking myself still for not waiting to get Samsung's SUHD instead of the 2015 JU7500 with no HDR. Love the TV but I must have HDR for the UHD blu rays I have.

[Stevenn1992]

Originally Posted by montyb

If you have or plan on purchasing UHD blu ray with HDR you should get a HDR abled set. Maybe save up more and get a 2016 4K OLED with HDR. It would be foolish to settle for a non-HDR set when you want to expand your viewing capabilities. Your eyes will thank you later! I am kicking myself still for not waiting to get Samsung's SUHD instead of the 2015 JU7500 with no HDR. Love the TV but I must have HDR for the UHD blu rays I have.

Thanks for the advice

[Penton-Man]

Originally Posted by bruceames.

Good point Penton about needing 10 bit HDR to really appreciate the WCG more. HDR by itself is much more impressive than a WCG by itself, but perhaps here the sum is greater than the parts? (just guessing with that last part, you're the expert here )

Yes, for high fidelity of the future, I’m a believer in ‘the sum is greater than the parts’ as well as the tripod analogy…..https://www.youtube.com/watch?v=e80V...tu.be&t=23m38s

[James Freeman]

Originally Posted by Penton-Man

Yes, for high fidelity of the future, I’m a believer in ‘the sum is greater than the parts’ as well as the tripod analogy…..https://www.youtube.com/watch?v=e80V...tu.be&t=23m38s

Excellent Video!
A must watch for HDR video enthusiast.

[bruceames]

Is HDR10 required on every UHD BD disc? I had thought that it was optional.

However, HDR 10 is a requirement for Ultra HD Blu-ray authoring.

http://www.digitaltrends.com/home-th...es-and-titles/

If that's the case then we won't have to wonder if it will have HDR or not (like older movies mainly). Does anyone know for sure whether the above is correct? Seems like it should be optional, the HDR10 is required only if they decide to use HDR in the first place.

[Doctorossi]

Thanks for this thread, Bruce!

[MattPerdue]

Originally Posted by bruceames.

Is HDR10 required on every UHD BD disc? I had thought that it was optional.



http://www.digitaltrends.com/home-th...es-and-titles/

If that's the case then we won't have to wonder if it will have HDR or not (like older movies mainly). Does anyone know for sure whether the above is correct? Seems like it should be optional, the HDR10 is required only if they decide to use HDR in the first place.

I don't believe so. The company doing the TCM UHD-Blu said that wouldn't have HDR applied so if that's the case then no.

[Geoff D]

Originally Posted by bruceames.

Is HDR10 required on every UHD BD disc? I had thought that it was optional.



http://www.digitaltrends.com/home-th...es-and-titles/

If that's the case then we won't have to wonder if it will have HDR or not (like older movies mainly). Does anyone know for sure whether the above is correct? Seems like it should be optional, the HDR10 is required only if they decide to use HDR in the first place.

AFAIK it's mandatory when wanting to actually employ HDR, i.e. if someone uses the optional Dolby or Philip system it must also include an HDR10 layer. But SDR is freely available to use with either the 709 or 2020 gamut, it's on page 42 of the Blu-ray V3.0 White Paper.

[bruceames]

Geoff, is 10 bit mandatory or can they encode 8 bit if they want to?

Sorry to be a pain, but can you link me to this white paper. I can't flush it out with my limited Google search skills.

[Geoff D]

Originally Posted by bruceames.

Geoff, is 10 bit mandatory or can they encode 8 bit if they want to?

10 bit is mandatory for all HEVC streams, whether they're 1080p or 2160p, HDR or SDR. But if they encode any 1080p content with AVC then 8 bit is used as per the current system, which will only really apply to special features or a 'bonus' 1080p version of the movie on the disc or whatever.

[bruceames]

Is this the page you were talking about Geoff?

[Geoff D]

That's an older slide but yes, it tells the same story. And the White Paper reiterates that HDR10 is the mandatory HDR system for a UHD Blu-ray player to use, but it's *not* mandatory for inclusion on every single disc.

Here's the table from the White Paper showing all available combinations of HEVC streams for UHD disc:

[James Freeman]

Might as well post the link to the official place where all the white papers are:

http://www.blu-raydisc.com/en/Techni...s/General.aspx
* Blu-ray Disc Format - General 4th Edition (August 2015).

http://www.blu-raydisc.com/en/Techni...ers/BDROM.aspx
* BD ROM - Physical Format Specifications - 9th Edition (August 2015)
* BD ROM - Audio Visual Application Format Specifications - Version 3 (July 2015)
* BD ROM - CMP Export Specifications - Version 1.1 (August 2015)

The red one is where all the good stuff's in.

Here is the full official HEVC spec:
https://www.itu.int/rec/T-REC-H.265

Select the latest one, there is a pdf.
Here you'll find the information that "BD ROM - Audio Visual Application Format Specifications" refers to.

[Carlos2992]

Hello people, just one question, if the TV has a 10 BIT deep colour HDMI imput, does this mean it is HDR compatible, or not? For example my LG 65UF8500 4K TV.

Thanks in advance.

[James Freeman]

That is a good 4K TV with HDMI 2.0 ports, but it does not support HDR and have only 75% of P3 gamut (REC.709 basically).
You will still be able to play 4K 10bit Rec.709 content from a UHD Blu-Ray player since it has HDMI 2.0 inputs but the player will do all the heavy conversions.

[Carlos2992]

Originally Posted by James Freeman

That is a good 4K TV with HDMI 2.0 ports, but it does not support HDR and have only 75% of P3 gamut (REC.709 basically).
You will still be able to play 4K 10bit Rec.709 content from a UHD Blu-Ray player since it has HDMI 2.0 inputs but the player will do all the heavy conversions.

Thank you very much for your answer!

[Penton-Man]

Originally Posted by bruceames.

A place for discussing HDR10, Dolby Vision, how they compare, info....

More work needed, e.g. to add HDR dynamic metadata and HLG OETF to HDR support in CTA-861.3…..https://forum.blu-ray.com/showthread...g#post12123572

Color grading tools have already progressed nicely….
https://www.youtube.com/watch?v=tyh4...utu.be&t=3m06s

[legends of beyond]

I know I said this on another thread, but "If I may add, we are on uncharted waters with HDR. SDR to HDR is as big of a change as 480p to HD was, but it's easier to mess up the original vision than added resolution was. I ADORE HDR, but only when it's done right, and it CAN be done right." Film goes beyond traditional SDR, but does not meet HDR level contrast.