Dolby Vision and HDR10+ in one video

Atlantis · 22nd June 2023, 20:23

I have seen video info where it is both Dolby Vision and HDR10+ in one video track! Is that even possible? One encode, one track that is compatible with both formats?!

Video
ID : 1
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main 10@L5@Main
HDR format : Dolby Vision, Version 1.0, dvhe.08.06, BL+RPU, HDR10 compatible / SMPTE ST 2094 App 4, Version 1, HDR10+ Profile B compatible

microchip8 · 22nd June 2023, 20:35

Yes, it's possible.

Atlantis · 22nd June 2023, 22:05

How? Playing DV on PC shows purple image but not this. How is it possible? It's one video track? Don't they have different color information?
Is there any threads discussing this?

TDS · 23rd June 2023, 01:39

Quote:

Originally Posted by Atlantis

How? Playing DV on PC shows purple image but not this. How is it possible? It's one video track? Don't they have different color information?
Is there any threads discussing this?

What rock have you been living under ??

Atlantis · 23rd June 2023, 02:46

Quote:

Originally Posted by TDS

What rock have you been living under ??

Under the rock of real life which seems you don't have apparently.

TDS · 23rd June 2023, 03:32

Quote:

Originally Posted by Atlantis

Under the rock of real life which seems you don't have apparently.

Real life doesn't exist under a rock...

Not really the response I was expecting..so afaic, you can figure it out for yourself..

microchip8 · 23rd June 2023, 03:47

Quote:

Originally Posted by Atlantis

How? Playing DV on PC shows purple image but not this. How is it possible? It's one video track? Don't they have different color information?
Is there any threads discussing this?

It's called "dual layer" profile. Keep in mind that high dynamic range is mostly made up of metadata so it's not that difficult to combine different HDR standards together.

F.ex, if you play a DV file on a TV that only supports HDR10 but not DV, you'll only get the HDR10 part as it is a fallback of DV.

TDS · 23rd June 2023, 03:51

Quote:

Originally Posted by microchip8

It's called "dual layer" profile. Keep in mind that high dynamic range is mostly made up of metadata so it's not that difficult to combine different HDR standards together.

F.ex, if you play a DV file on a TV that only supports HDR10 but not DV, you'll only get the HDR10 part as it is a fallback of DV.

I think it's more commonly called "Hybrid".

Atlantis · 23rd June 2023, 15:09

Thank you microchip8.

microchip8, is there a guide here to show how it's done?

benwaggoner · 23rd June 2023, 16:57

Quote:

Originally Posted by Atlantis

Thank you microchip8.

microchip8, is there a guide here to show how it's done?

This thread includes a lot of detail and a tool for making hybrid HDR-10/HDR10+/DoVi files.

https://forum.doom9.org/showthread.php?t=183479

Atlantis · 23rd June 2023, 18:07

Thank you benwaggoner.

Balling · 5th July 2023, 16:48

Quote:

Originally Posted by Atlantis

How? Playing DV on PC shows purple image but not this. How is it possible? It's one video track? Don't they have different color information?
Is there any threads discussing this?

It is impossible for Profile 5 Dolby Vision, at least for now. But theoretically HDR10+ is compatible with ICtCp as defined in H.273 and already supported in libplacebo with ICtCp supported in zscale aka zimg.

Not only that but HDR10+ metadata is more complex and should be fully compatible with even more complex Dolby Vision v4 three part curve.

benwaggoner · 5th July 2023, 19:48

Quote:

Originally Posted by Balling

It is impossible for Profile 5 Dolby Vision, at least for now. But theoretically HDR10+ is compatible with ICtCp as defined in H.273 and already supported in libplacebo with ICtCp supported in zscale aka zimg.

It wouldn't be backwards compatible HDR-10, though, and not compatible with anything I can think of. What sort of use case do you imagine?

The general interest in this approach is to have a backwards compatible HDR-10 with static metadata with both flavors of dynamic metadata included, so a TV that supports either HDR10+ or Dolby Vision Profile 8 would have dynamic tone mapping. That's probably over half the HDR TVs in homes today and probably >85% of 2024 TVs shipped.

Balling · 15th July 2023, 06:45

No, it will be backwards compatible. Dolby Vision profile 5 requires parsing of reshaping data and uses private standard for matrix, that is not HDR10, HDR10 allows all codepoints in H.273. Ha? HDR10 can be RGB too.

rwill · 15th July 2023, 08:42

Hey Balling, what is this "Dolby Vision v4 three part curve" supposed to be anyway?

Balling · 18th July 2023, 17:04

You can look up color.org presentation on Dolby Vision v4.

rwill · 19th July 2023, 19:08

Quote:

Originally Posted by Balling

You can look up color.org presentation on Dolby Vision v4.

Can you point me to it? I searched the site but could not find anything about "Dolby Vision v4".

Balling · 31st July 2023, 04:16

Quote:

Originally Posted by rwill

Can you point me to it? I searched the site but could not find anything about "Dolby Vision v4".

https://www.color.org/events/HDR_experts.xalter

Dolby Vision: overview of key features and workflows

rwill · 10th August 2023, 11:44

Quote:

Originally Posted by Balling

https://www.color.org/events/HDR_experts.xalter

Dolby Vision: overview of key features and workflows

Balling, this is just an overview of key features and workflows of Dolby Vision - I know all that. There is nothing in there about a "Dolby Vision v4 three part curve" at all. I also have never heard about such a thing. I think richardpl described you and your intends correctly some time ago.

And remember kids, making up things and linking to random presentations that vaguely touch the topic make you appear pompous.

Balling · 11th August 2023, 12:57

Quote:

Originally Posted by rwill

Balling, this is just an overview of key features and workflows of Dolby Vision - I know all that. There is nothing in there about a "Dolby Vision v4 three part curve" at all.

Another link: https://professionalsupport.dolby.co...language=en_US

22nd June 2023, 20:23	#1 \| Link
Atlantis Registered User Join Date: Feb 2002 Posts: 758	Dolby Vision and HDR10+ in one video I have seen video info where it is both Dolby Vision and HDR10+ in one video track! Is that even possible? One encode, one track that is compatible with both formats?! Video ID : 1 Format : HEVC Format/Info : High Efficiency Video Coding Format profile : Main 10@L5@Main HDR format : Dolby Vision, Version 1.0, dvhe.08.06, BL+RPU, HDR10 compatible / SMPTE ST 2094 App 4, Version 1, HDR10+ Profile B compatible

22nd June 2023, 20:35	#2 \| Link
microchip8 ffx264/ffhevc author Join Date: May 2007 Location: /dev/video0 Posts: 1,844	Yes, it's possible. __________________ ffx264 \|\| ffhevc \|\| ffxvid \|\| microenc

22nd June 2023, 22:05	#3 \| Link
Atlantis Registered User Join Date: Feb 2002 Posts: 758	How? Playing DV on PC shows purple image but not this. How is it possible? It's one video track? Don't they have different color information? Is there any threads discussing this? Last edited by Atlantis; 22nd June 2023 at 23:00.

23rd June 2023, 15:09	#9 \| Link
Atlantis Registered User Join Date: Feb 2002 Posts: 758	Thank you microchip8. microchip8, is there a guide here to show how it's done?

23rd June 2023, 18:07	#11 \| Link
Atlantis Registered User Join Date: Feb 2002 Posts: 758	Thank you benwaggoner.

15th July 2023, 06:45	#14 \| Link
Balling Registered User Join Date: Feb 2020 Posts: 541	No, it will be backwards compatible. Dolby Vision profile 5 requires parsing of reshaping data and uses private standard for matrix, that is not HDR10, HDR10 allows all codepoints in H.273. Ha? HDR10 can be RGB too.

15th July 2023, 08:42	#15 \| Link
rwill Registered User Join Date: Dec 2013 Posts: 349	Hey Balling, what is this "Dolby Vision v4 three part curve" supposed to be anyway?

18th July 2023, 17:04	#16 \| Link
Balling Registered User Join Date: Feb 2020 Posts: 541	You can look up color.org presentation on Dolby Vision v4.