Dolby Vision now possible through MP4 Mux.

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speeddemon
Posts: 77
Joined: Wed Oct 16, 2019 3:44 am

Re: Dolby Vision now possible through MP4 Mux.

Post by speeddemon »

RESET_9999 wrote:
Fri Jan 05, 2024 2:10 pm
homatics etc..), they are completely broken.
Is the Homatics Box R 4K Plus definitely one of these that is completely broken when the MDL >1000-nits?
If not, which Homatics device are you referring to?
Asking because I thought the Homatics S905X4-K devices were CMv4 devices.
RESET_9999
Posts: 2082
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

I'm referring to whatever model @dmdreview tested in his video. You can ask him, I don't have this device.
speeddemon
Posts: 77
Joined: Wed Oct 16, 2019 3:44 am

Re: Dolby Vision now possible through MP4 Mux.

Post by speeddemon »

RESET_9999 wrote:
Fri Jan 05, 2024 7:15 pm
I'm referring to whatever model @dmdreview tested in his video. You can ask him, I don't have this device.
I looked closer and he says in the video description (not in the video itself) that it is the Homatics Box R 4K Plus. That's the latest Amlogic S905X4-K that's being used in all the current SEI804HM devices (Homatics, Dune, Nokia, Rocktek).
susanstone2022
Posts: 31
Joined: Sat Feb 26, 2022 12:44 am

Re: Dolby Vision now possible through MP4 Mux.

Post by susanstone2022 »

RESET_9999 wrote:
Fri Jan 05, 2024 4:27 pm
if the RPU is 4000nits it's fine but if the RPU is 1000nits like the majority of the movies, do not use DV on those devices.
Zidoo can save TV edid. Zidoo can set customised edid. If my TV is 2000nits and I set Zidoo edid to 1000nits, would it work?
speeddemon
Posts: 77
Joined: Wed Oct 16, 2019 3:44 am

Re: Dolby Vision now possible through MP4 Mux.

Post by speeddemon »

susanstone2022 wrote:
Sat Jan 06, 2024 3:10 am
RESET_9999 wrote:
Fri Jan 05, 2024 4:27 pm
if the RPU is 4000nits it's fine but if the RPU is 1000nits like the majority of the movies, do not use DV on those devices.
Zidoo can save TV edid. Zidoo can set customised edid. If my TV is 2000nits and I set Zidoo edid to 1000nits, would it work?
If you want a Player-led device then I think you'd just be significantly better off picking up a 23AFTVS4KM (2023 Amazon Fire TV Stick 4K Max) and loading Kodi on it. You also even run PKC (PlexKodiConnect) on it. That'll give you Atmos TrueHD passthrough with the most accurate Player-led luminance RESET has tested.

@RESET_9999 have you been able to test the color saturation/accuracy on the 23AFTVS4KM?
RESET_9999
Posts: 2082
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

susanstone2022 wrote:
Sat Jan 06, 2024 3:10 am
Zidoo can save TV edid. Zidoo can set customised edid. If my TV is 2000nits and I set Zidoo edid to 1000nits, would it work?
With a 2000nits TV, you don't need DV for 1000nits movies(and for most of the movies). A 1000nits edid would be a bad idea because then any shot over 1000nits would be tonemapped to 1000nits while your tv is capable of displaying it untouched. HDR content is graded brighter than the MDL sometimes.
RESET_9999
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Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

speeddemon wrote:
Sat Jan 06, 2024 6:41 am
@RESET_9999 have you been able to test the color saturation/accuracy on the 23AFTVS4KM?
I noticed some extra saturation compared to other devices. I might not investigate this any further since I don't really care about a device that cannot do tv-led. Also, the Firestick devices are doing some Dolby Vision IQ internally even when your TV DV IQ is disabled. If you take quietvoid's L11 test file, it is supposed to work only when your TV(LG) is in Cinema Home mode with DV iq enabled.

For DV MKV playback, I've been using my C2 internal player lately. It seems stable and it works very well, at least for the 3 movies I watched so far.
You have to sideload Kodi in developer mode but it's not too complicated to do and its pretty nice to finally have DV MKV support on LG TVs.
https://kodi.wiki/view/HOW-TO:Install_Kodi_for_webOS
ragico
Posts: 258
Joined: Fri Feb 15, 2019 1:09 am

Re: Dolby Vision now possible through MP4 Mux.

Post by ragico »

RESET_9999 wrote:
Fri Jan 05, 2024 4:27 pm
I dont know if there is a free way of getting your TV edid info. I use the vertex and I can also get the edid with a cheap raspberry pi and PGenerator: https://www.avsforum.com/threads/dedica ... 5/#replies

If the edid is higher than 1000 nits, what to do with homatics, ugoos, zidoo, firestick, dune, etc boxes? Trow away in garbage? Or use it only for non DV formats?
if the RPU is 4000nits it's fine but if the RPU is 1000nits like the majority of the movies, do not use DV on those devices.
As I understand only Sony x700 and X800m2, Oppo 2003 and ATV latest generation can do real TV led. Am I wrong?
Yes, all the bluray players should support TV-LED and AFAIK for the media player, only the shield and ATV support it.
How I know a movie RPU nits trough your scripts?
HotFudge
Posts: 18
Joined: Tue Nov 28, 2023 8:42 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by HotFudge »

Happy New Year.

Just to clarify when I use the DoVi scripts to plot a UHD disc with Profile 7 FEL the graph is using all the Profile 7 FEL layer metadata?
RESET_9999
Posts: 2082
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

ragico wrote:
Sat Jan 06, 2024 2:11 pm
How I know a movie RPU nits trough your scripts?
Workflow 2-3

Image
RESET_9999
Posts: 2082
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

HotFudge wrote:
Sat Jan 06, 2024 2:15 pm
Happy New Year.

Just to clarify when I use the DoVi scripts to plot a UHD disc with Profile 7 FEL the graph is using all the Profile 7 FEL layer metadata?
Yes, the values in the plot are for the BL+EL decoded brightness.
susanstone2022
Posts: 31
Joined: Sat Feb 26, 2022 12:44 am

Re: Dolby Vision now possible through MP4 Mux.

Post by susanstone2022 »

RESET_9999 wrote:
Sat Jan 06, 2024 1:25 pm
susanstone2022 wrote:
Sat Jan 06, 2024 3:10 am
Zidoo can save TV edid. Zidoo can set customised edid. If my TV is 2000nits and I set Zidoo edid to 1000nits, would it work?
With a 2000nits TV, you don't need DV for 1000nits movies(and for most of the movies). A 1000nits edid would be a bad idea because then any shot over 1000nits would be tonemapped to 1000nits while your tv is capable of displaying it untouched. HDR content is graded brighter than the MDL sometimes.
Do you mean I should just watch HDR layer instead of DV for the same content? Do I lose anything that DV provides?

I guess what I am trying do is to find a decent external player for P8 cropped content. P8(full frame) can be watched with x800m2. Another way I can think of is to remove cmv4 and use Apple TV. That should give me true TV-led?
RESET_9999
Posts: 2082
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

Yes, if the content is within your display capabilities, DV doesn't have to tonemap/compress highlights/gamut.
But sometimes they do use the L2 trims to raise the brightness. The latest Mission Impossible flick is a good example.

Image
Last edited by RESET_9999 on Sat Jan 06, 2024 3:41 pm, edited 1 time in total.
azreil24
Posts: 45
Joined: Mon Dec 14, 2020 3:28 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by azreil24 »

RESET_9999 wrote:
Sat Jan 06, 2024 1:31 pm
speeddemon wrote:
Sat Jan 06, 2024 6:41 am
@RESET_9999 have you been able to test the color saturation/accuracy on the 23AFTVS4KM?
For DV MKV playback, I've been using my C2 internal player lately. It seems stable and it works very well, at least for the 3 movies I watched so far.
You have to sideload Kodi in developer mode but it's not too complicated to do and its pretty nice to finally have DV MKV support on LG TVs.
https://kodi.wiki/view/HOW-TO:Install_Kodi_for_webOS
Wait wait wait, if I install Kodi through that method, I get DV MKV support on my C2 through the built-in player? Can this tool also be used to enable the limited DTS support? I know there was an option to do so with a command line.
RESET_9999
Posts: 2082
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

azreil24 wrote:
Sat Jan 06, 2024 3:38 pm
Wait wait wait, if I install Kodi through that method, I get DV MKV support on my C2 through the built-in player?
yep, finally!! :)
Can this tool also be used to enable the limited DTS support? I know there was an option to do so with a command line.
I'm not sure, I have to test this again but I think DTS and PGS subs are working (probably sent in pcm??)
TrueHD doesn't work and it breaks the app on my end. I have to restart the TV if I want Kodi to work again.
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