Dolby Vision Tonemapping?

[JoeAverage92 6]

On 1/4/2025 at 9:38 PM, generiq said:

Something to consider here is that mpv by default will load embedded profiles. Looking at that site you linked,  it appears that their samples have embedded profiles. Can you confirm if your test samples do or do not have embedded profiles?

The video samples are encoded using Rec709 or BT2020 color scheme. The screenshots are a Windows capture, they just demonstrate that MPV is doing an ICC3DLUT conversion with the flag.

[Guest]

39 minutes ago, JoeAverage92 said:

The video samples are encoded using Rec709 or BT2020 color scheme. The screenshots are a Windows capture, they just demonstrate that MPV is doing an ICC3DLUT conversion with the flag.

The samples are your own videos? They look like test samples?

[JoeAverage92 6]

28 minutes ago, generiq said:

The samples are your own videos? They look like test samples?

Yes it is video test samples from AVS HD 709 - Blu-ray & MP4 Calibration | AVS Forum (Rec709 mp4) and HDR10 test patterns set | AVS Forum (BT2020).

[Guest]

22 minutes ago, JoeAverage92 said:

Yes it is video test samples from AVS HD 709 - Blu-ray & MP4 Calibration | AVS Forum (Rec709 mp4) and HDR10 test patterns set | AVS Forum (BT2020).

Do.you get the same result if you disable using embedded ICCs?

[JoeAverage92 6]

24 minutes ago, generiq said:

Do.you get the same result if you disable using embedded ICCs?

Yes. I believe that this flag only applies to image files (sRGB, Adobe, ...) not video files (Rec709, BT2020, ...).

[JoeAverage92 6]

On 1/4/2025 at 10:44 PM, generiq said:

I just noticed that profiles only get added to SDR, because...

This would explain why I saw no changes.

 

Good idea. I have tested Automatic Color Management (Windows 11, 24H2) and, indeed, with this setting On, Emby displays correctly Red Rec709 (less saturated) and Red BT2020 on a wide gamut monitor, just as expected.

However, according to Guide to Color Management Settings in Windows 10 and 11 - TruHu there seems to be problems with Automatic Color Management (but I did no investigate).

Edited January 6, 2025 by JoeAverage92

[TassLehoff 2]

A friend told me colors are bad on his Xbox One X (not Series X) with a 1080p SDR TV, HDR tone mapping seem to work fine but not with Dolby Vision.

Are there any options to configure?

 

Edited February 23, 2025 by TassLehoff

[Luke 42077]

Hi, are you still seeing this with the latest update to the Emby Windows app?

[Luke 42077]

@TassLehoff?

[TassLehoff 2]

Sorry Luke, same as before on the last news of my friend. But is there something to configure ?

I have personnaly the same probleme on android (phone and tv)

[TassLehoff 2]

I think i have found the answer of my question, if i understand profile 5 of Dolby Vision only work on Windows app

What i can say:

HDR / Without HDR Screen = Work on Xbox, Windows, Android TV and Android

DV Profile 5 / Without DV Screen = Work Only in Emby Windows app

I can't confirm for now if profile 8.1 play fine because all of my files who use this profile are HDR compatible

 

Edit: I need to ask a friend but if i remember he can play fine a DV profile 5 on Android TV with a DV screen compatible

 

Edited April 2, 2025 by TassLehoff

[Luke 42077]

OK please let us know if you find anything else. Thanks.

[TassLehoff 2]

I made some new test, and now i'm completly lost

 

DV Profile 5 with good tonemapping:

- Xiaomi Android TV compatible DV

- Old chinese 1080p TV and a Android TV Box from a french ISP

 

DV Profile 5 with bad tonemapping:

- Old LG 1080p TV and a Android TV Xiaomi Mi Box

[Guest]

This issue would appear to be the same, and would seem have come to a conclusion that is in same area.

https://github.com/mpv-player/mpv/issues/16418