Dolby Vision now possible through MP4 Mux.

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thirdmoon
Posts: 35
Joined: Mon Jul 03, 2023 6:17 am

Re: Dolby Vision now possible through MP4 Mux.

Post by thirdmoon »

DaVinci Resolve Studio 18.6
"Dolby Vision CM 4.0 L1 analysis with user-selected filtering support."

What does this mean?
Mrmorrison
Posts: 32
Joined: Thu Oct 20, 2022 2:13 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by Mrmorrison »

RESET_9999 wrote:
Thu Sep 14, 2023 9:35 pm
Mrmorrison wrote:
Thu Sep 14, 2023 8:44 pm
I don't know what to say... the image given by the wrong P8 seems even brighter and more enjoyable to me.

Enough.. I don't give up on understanding more
Then your TV internal player is wrong.
It just make no sense that (2000 L1 + 1000nits BL) produce a brighter image than (1000 L1 + 1000 BL)
Sorry my friend. You are right. I took an incorrect image.

Here is the correct comparison.

DV 8 (wrong) from your files:

Image

DV8 (optimal) from your files:

Image


Comparison slow pics

https://slow.pics/c/3a1kpalj


Here I don't find any differences even in the camera images. :roll:
jlpsvk
Posts: 50
Joined: Thu Sep 06, 2018 11:33 am

Re: Dolby Vision now possible through MP4 Mux.

Post by jlpsvk »

thirdmoon wrote:
Fri Sep 15, 2023 5:12 am
DaVinci Resolve Studio 18.6
"Dolby Vision CM 4.0 L1 analysis with user-selected filtering support."

What does this mean?
Curious too... but i think it means Resolve has the new 2023 DoVi algo from now. :)
RESET_9999
Posts: 1977
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

thirdmoon wrote:
Fri Sep 15, 2023 5:12 am
DaVinci Resolve Studio 18.6
"Dolby Vision CM 4.0 L1 analysis with user-selected filtering support."

What does this mean?
nice! looks like they updated the Dolby algo like in CM
great news thanks for sharing.
RESET_9999
Posts: 1977
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

Mrmorrison wrote:
Fri Sep 15, 2023 6:58 am
Here I don't find any differences even in the camera images. :roll:
well I don't know. Are you using a phone to take those pictures?

if yes, you need a DSLR camera that can lock all the settings.
On a phone, there's always the exposure or ISO that remains dynamic making it almost impossible to make accurate comparisons..
Mrmorrison
Posts: 32
Joined: Thu Oct 20, 2022 2:13 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by Mrmorrison »

RESET_9999 wrote:
Fri Sep 15, 2023 11:03 am
Mrmorrison wrote:
Fri Sep 15, 2023 6:58 am
Here I don't find any differences even in the camera images. :roll:
well I don't know. Are you using a phone to take those pictures?

if yes, you need a DSLR camera that can lock all the settings.
On a phone, there's always the exposure or ISO that remains dynamic making it almost impossible to make accurate comparisons..
I have this https://www.nikonusa.com/en/nikon-produ ... -b700.html
jlpsvk
Posts: 50
Joined: Thu Sep 06, 2018 11:33 am

Re: Dolby Vision now possible through MP4 Mux.

Post by jlpsvk »

yes... it's there!!! :) Resolve 18.6

and it's freakin' fast... really don't know why cm_analyze is slowing down. :(

Image
thirdmoon
Posts: 35
Joined: Mon Jul 03, 2023 6:17 am

Re: Dolby Vision now possible through MP4 Mux.

Post by thirdmoon »

RESET_9999 wrote:
Fri Sep 15, 2023 11:00 am
thirdmoon wrote:
Fri Sep 15, 2023 5:12 am
DaVinci Resolve Studio 18.6
"Dolby Vision CM 4.0 L1 analysis with user-selected filtering support."

What does this mean?
nice! looks like they updated the Dolby algo like in CM
great news thanks for sharing.
The only problem now remains is importing official scene cuts in DaVinci.

Also RESET should we now not use different scaling and 1080p resolution?
RESET_9999
Posts: 1977
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

I guess scaling down with cubic won't be needed anymore.
Unfortunately, when you import the original XML, it doesn't import the scene cut but at least we can now do the dynamic L5 with the latest algo.


PS: I updated my resolve preset for 18.6 in the dovi_scripts tutorial folder.
Mattl0
Posts: 37
Joined: Mon Apr 26, 2021 6:57 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by Mattl0 »

RESET_9999 wrote:
Thu Sep 14, 2023 9:35 pm
Mrmorrison wrote:
Thu Sep 14, 2023 8:44 pm
I don't know what to say... the image given by the wrong P8 seems even brighter and more enjoyable to me.

Enough.. I don't give up on understanding more
Then your TV internal player is wrong.
It just make no sense that (2000 L1 + 1000nits BL) produce a brighter image than (1000 L1 + 1000 BL)
Is is normal that a higher luminance level on a “tonemaped under 700 nit tv” looks dimmer?, isn’t it?
Mattl0
Posts: 37
Joined: Mon Apr 26, 2021 6:57 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by Mattl0 »

I have a lg g3 here. I will replace it by a sony soon.

Anyways, I tried to play p7 dual layer ts via the media app on the g3 and they are not recognized. On my c1 they play as hdr, but on the g3 nothing.

I was wondering what lg did here.
Mattl0
Posts: 37
Joined: Mon Apr 26, 2021 6:57 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by Mattl0 »

I tried searching this mega thread but could find the info.

What is the purpose of reinjecting rpu from an resolve analysist? I see @RESET_9999 that you have done a lot of movie , what is the purpose of using your rpu ? What should i do with it and what would be the outcome difference versus original p7 DL?

Thanks
RESET_9999
Posts: 1977
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

Mattl0 wrote:
Fri Sep 15, 2023 9:28 pm
Is is normal that a higher luminance level on a “tonemaped under 700 nit tv” looks dimmer?, isn’t it?
Yes, when the content exceeds your TV capabilities, Dolby dims the brightness to preserve highlights details. HDR10 also does that but with a static curve while DV does it shot by shot.
Mattl0 wrote:
Fri Sep 15, 2023 9:36 pm
I have a lg g3 here. I will replace it by a sony soon.
Anyways, I tried to play p7 dual layer ts via the media app on the g3 and they are not recognized. On my c1 they play as hdr, but on the g3 nothing.
I was wondering what lg did here.
No P7 support since 2019 on LG TVs.
Mattl0 wrote:
Fri Sep 15, 2023 10:30 pm
I tried searching this mega thread but could find the info.
What is the purpose of reinjecting rpu from an resolve analysist? I see @RESET_9999 that you have done a lot of movie , what is the purpose of using your rpu ? What should i do with it and what would be the outcome difference versus original p7 DL?
Thanks
Resolve is for movies that come without DV or the ones that have static metadata.
RESET_9999
Posts: 1977
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

18.6 also fixes the downscaling bug, now there is no longer a difference between the project set to 1080p or 2160p. NICE!

18.6 scaling VS no scaling:https://slow.pics/c/bJAeBXyi
18.5 scaling VS no scaling: https://slow.pics/c/4O89GXHw

But it's still important to have your project set to Custom Cubic because it's still the only algo that produces identical peaks as madVR.
18.6 smoother vs cubic custom: https://slow.pics/c/vB9fJdUi

Full movie:
L1 tuning 1 vs OLD L1 legacy vs madVR
https://slow.pics/c/upYDfebF


EDIT: woah, scratch that. It turns out the scaling issues are caused by the cracked version :lol: .
thirdmoon
Posts: 35
Joined: Mon Jul 03, 2023 6:17 am

Re: Dolby Vision now possible through MP4 Mux.

Post by thirdmoon »

RESET_9999 wrote:
Sat Sep 16, 2023 12:14 am

EDIT: woah, scratch that. It turns out the scaling issues are caused by the cracked version :lol: .
What settings to use on cracked one?

I generated a xml using the recently updated preset in cracked version (18.6). Do we need to make any changes or is that fine?
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