Tone mapping doesn't work with Dolby Vision, correct?

[heffeque 78]

Quick question... Tone mapping doesn't work with Dolby Vision, correct?

Asking because tone mapping on Emby doesn't seem to work on my DS918+ with videos like "Dolby Vision - Blocks" (see HERE) even on 4.8 (also waiting for 4.9 to be a bit more stable).
Colors are totally wrong (purple and green instead of normal colors).

I have videos that have both Dolby Vision and HDR10+ (simultaneously), and they seem to work OK (I'm guessing that Emby is ignoring Dolby Vision, falling back to HDR10+, and tone mapping that data).

If tone mapping on Dolby Vision is supposed to work on 4.8, I can provide logs.

I can also provide logs for Dolby Vision + HDR10+ videos working as expected.
I don't have any standalone HDR10+ videos.

Correction, I do have a couple of HDR10+ videos, and they seem to be losing the dynamic metadata part.
Example file: https://archive.org/download/hdr10test_lake_2021_02_01 
On Emby all loops look the same (whilst when using PotPlayer I actually see changes on my SDR screen).
Interestingly enough, VLC also fails to reproduce Dolby Vision and HDR10+ correctly, and MPC-HC reproduces Dolby Vision, but the dynamic range of HDR10+ is missing. Only PotPlayer seems to be doing everything correctly.

Let me know what would work best for you.

Edited October 16, 2025 by heffeque

[softworkz 5066]

@heffeque - I've split out your question. It was off-topic and the wrong forum  

[heffeque 78]

Sorry about that.

Was trying things out to see what logs I could send you, and ended up checking further than originally intended.

[softworkz 5066]

No worries, all fine!

[Lessaj 467]

Dolby Vision Profile 5 (pure DV) cannot be transcoded.

[heffeque 78]

How about HDR10+?

There's tone mapping going on, but dynamic metadata seems to be ignored (though that might be asking a bit too much seeing that neither MPC-HC nor VLC seem to get that right).

[softworkz 5066]

19 hours ago, Lessaj said:

Dolby Vision Profile 5 (pure DV) cannot be transcoded.

It has been figured out meanwhile. It's planned for the future

 

19 hours ago, heffeque said:

How about HDR10+?

Also planned.

[heffeque 78]

Awesome! Thanks!