Dolby Vision now possible through MP4 Mux.

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ragico
Posts: 264
Joined: Fri Feb 15, 2019 1:09 am

Re: Dolby Vision now possible through MP4 Mux.

Post by ragico »

@Reset_9999
Thanks very much for your hard work and help, You are among the very few men who really helps.
RESET_9999
Posts: 2381
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

You're welcome :)
deadchip12
Posts: 372
Joined: Thu May 02, 2019 2:49 am

Re: Dolby Vision now possible through MP4 Mux.

Post by deadchip12 »

@RESET_9999

I just watched your corelect configuration tutorial. Why is L6 set to Discard instead of Source?
RESET_9999
Posts: 2381
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

L6 is useless
HotFudge
Posts: 28
Joined: Tue Nov 28, 2023 8:42 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by HotFudge »

RESET_9999 wrote:
Fri Feb 28, 2025 10:40 pm
yes, L2 is always ignored with a cmv4.0 RPU + hardware, even without L8.
Hi Reset

So does this mean in order to use my generated DaVinci Resolve RPU
I need to save it as v2.9 for it to use the L2 generated trims since
if I save the RPU as v4.0 it will just use the "empty" L8 v4.0 trim and
ignore the L2 generated v4.0 trims?
RESET_9999
Posts: 2381
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

No, as I said, the generated L2 trim is meant to mimic the improved tone mapping of CMv4.0 on CMv2.9 devices.
CMv4.0 L1 + L3 is roughly equivalent to CMv2.9 L1 + L2.
HotFudge
Posts: 28
Joined: Tue Nov 28, 2023 8:42 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by HotFudge »

RESET_9999 wrote:
Sun Mar 16, 2025 1:37 pm
No, as I said, the generated L2 trim is meant to mimic the improved tone mapping of CMv4.0 on CMv2.9 devices.
CMv4.0 L1 + L3 is roughly equivalent to CMv2.9 L1 + L2.
Ah sorry RESET.

I think I get it now
For cmv4.0
if L8 is empty then it will use L1+L3 generated metadata otherwise it will use L1+L8.

Thanks very much for your continue help.
RESET_9999
Posts: 2381
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

if L8 is active, it will use L1+L3+L8. Check out these metadata video comparisons: https://drive.google.com/drive/folders/ ... dMiy2ka0mf
HotFudge
Posts: 28
Joined: Tue Nov 28, 2023 8:42 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by HotFudge »

RESET_9999 wrote:
Sun Mar 16, 2025 2:55 pm
if L8 is active, it will use L1+L3+L8. Check out these metadata video comparisons: https://drive.google.com/drive/folders/ ... dMiy2ka0mf
RESET you are MVP

Thanks again
HotFudge
Posts: 28
Joined: Tue Nov 28, 2023 8:42 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by HotFudge »

RESET_9999 wrote:
Sun Mar 16, 2025 10:33 am
L6 is useless
why is this metadata useless?
RESET_9999
Posts: 2381
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

it's not used in DV
HotFudge
Posts: 28
Joined: Tue Nov 28, 2023 8:42 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by HotFudge »

RESET_9999 wrote:
Sun Mar 16, 2025 7:40 pm
it's not used in DV
Interesting. Thanks
deadchip12
Posts: 372
Joined: Thu May 02, 2019 2:49 am

Re: Dolby Vision now possible through MP4 Mux.

Post by deadchip12 »

RESET_9999 wrote:
Sun Mar 16, 2025 7:40 pm
it's not used in DV
Hmm then what's the point of making it a setting in cpm build?
RESET_9999
Posts: 2381
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

For the same reason my scripts automatically edit it when injecting XML even though it's useless, why not?
Just enable it if it makes you feel better...
Epedemic
Posts: 52
Joined: Mon Jan 21, 2019 11:07 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by Epedemic »

So, google decided to finally update the CCwGTV to Android 14. However, other than it being a totally botched update, it seems FEL support might be permanently gone, "thanks to" an upgrade to kernel 5.15. I can live with that, as I have a X700 as well, however I wonder if anyone can confirm wether MEL is still played correctly? (It looks like it to me, but I cannot verify it as well as the experts here can)
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