Dolby Vision now possible through MP4 Mux.

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Mattl0
Posts: 37
Joined: Mon Apr 26, 2021 6:57 pm

Re: Dolby Vision now possible through MP4 Mux.

#6466 Post by Mattl0 » Thu May 05, 2022 9:26 am

mattmarsden wrote:
Mon Apr 25, 2022 12:57 pm
Mattl0 wrote:
Sat Apr 23, 2022 5:04 pm
Anyone tried the 5.0 fw from Ugoos on am6 b? Wonder how’s the dv playback. I will test it when I have time (currently the unit is somewhere, need to find it lol) .

F9220A1F-B95D-4B07-83FB-19CFD5159257.pngC8E9B873-8502-4BDF-B4FD-3602ACEBADDC.pngA594274E-B3FB-4A57-91F1-051FBD0A3621.jpeg
Do you know where I can download the firmware from?
Here you go https://mega.nz/folder/fo8yHCKa#BMc78ichXyiEB1OKyqA0lw

ArArdin
Posts: 196
Joined: Fri Nov 20, 2020 1:40 pm

Re: Dolby Vision now possible through MP4 Mux.

#6467 Post by ArArdin » Thu May 05, 2022 9:54 am

Mattl0 wrote:
Thu May 05, 2022 9:26 am
Here you go https://mega.nz/folder/fo8yHCKa#BMc78ichXyiEB1OKyqA0lw
Would you happen to know if this FW is for Ugoos AM6-b only?

I still have a neglected AM6 Plus with dualboot CoreElec stashed away somewhere.

mtotheb
Posts: 37
Joined: Wed Jan 27, 2021 12:18 pm

Re: Dolby Vision now possible through MP4 Mux.

#6468 Post by mtotheb » Thu May 05, 2022 10:48 am

quietvoid wrote:
Wed May 04, 2022 8:56 pm
It should probably be compared to the FEL disc, in the hope that they're the same.
I don’t have the tools to compare the FEL disc to the Version thats being sold here, but the distributer responded to my email saying the A24 Disc‘s DolbyVision is just "upscaled" to FEL while they wanted to do it in the most "native" way as the Content they received. I wonder why they didn’t go with MEL P7 then but maybe the new way going forward is doing it in P8 now?
Shield TV 2017 -> LG DSN10YG Soundbar with SPK8 Rears -> LG B1 OLED

quietvoid
Posts: 373
Joined: Sun Apr 19, 2020 4:15 pm

Re: Dolby Vision now possible through MP4 Mux.

#6469 Post by quietvoid » Thu May 05, 2022 12:41 pm

Not sure but it still sounds like an oddity.

quietvoid
Posts: 373
Joined: Sun Apr 19, 2020 4:15 pm

Re: Dolby Vision now possible through MP4 Mux.

#6470 Post by quietvoid » Fri May 06, 2022 3:20 am

RESET_9999 wrote:
Wed May 04, 2022 4:26 pm
it says that on the original M2TS file on the bluray disc?
The m2ts doesn't have the Dolby Vision descriptor, so MakeMKV probably gets the info from probing the HEVC RPUs.

The Koch Media release doesn't seem right to me. The levels and L1 metadata are pretty different.
It's true that the A24 FEL doesn't make much difference, though.

Also, A24 has 3 trim passes (100, 600, 1000) while Koch Media only has one for 100 nits, and it's almost useless (max 2050 adjustment, where 2048 is no adjustment).
So I don't know what they're on about but the two aren't going to be the same at all in Dolby Vision playback.

Some funny thing is that the HDR10 is encoded with this:
Maximum Content Light Level : 420 cd/m2
Maximum Frame-Average Light Level : 69 cd/m2
Seems like a mess of an authoring job here, or a joke. The L1 is consistently over 600 nits, with a 1477 nits peak.
Koch Media also has L5 set to zero, when there are letterbox bars.

RESET_9999
Posts: 2090
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

#6471 Post by RESET_9999 » Fri May 06, 2022 2:47 pm

great analysis as usual @quietvoid ... I need to try to understand your vs-nlq script (assuming that's what you used to check FEL)...

andy22
Posts: 3
Joined: Fri May 06, 2022 9:52 pm

Re: Dolby Vision now possible through MP4 Mux.

#6472 Post by andy22 » Fri May 06, 2022 9:55 pm

@RESET_9999 Hi quick question, so using your scripts its not possible to convert DV P8/7 to P5? Is that because of the different colorspace?

thanks

Mattl0
Posts: 37
Joined: Mon Apr 26, 2021 6:57 pm

Re: Dolby Vision now possible through MP4 Mux.

#6473 Post by Mattl0 » Fri May 06, 2022 11:07 pm

ArArdin wrote:
Thu May 05, 2022 9:54 am
Mattl0 wrote:
Thu May 05, 2022 9:26 am
Here you go https://mega.nz/folder/fo8yHCKa#BMc78ichXyiEB1OKyqA0lw
Would you happen to know if this FW is for Ugoos AM6-b only?

I still have a neglected AM6 Plus with dualboot CoreElec stashed away somewhere.
Your am6 plus will work with that fw : )>

ArArdin
Posts: 196
Joined: Fri Nov 20, 2020 1:40 pm

Re: Dolby Vision now possible through MP4 Mux.

#6474 Post by ArArdin » Sat May 07, 2022 6:31 am

Mattl0 wrote:
Fri May 06, 2022 11:07 pm
Your am6 plus will work with that fw : )>
Thanks, Mattl0 :)

mtotheb
Posts: 37
Joined: Wed Jan 27, 2021 12:18 pm

Re: Dolby Vision now possible through MP4 Mux.

#6475 Post by mtotheb » Sat May 07, 2022 9:51 am

RESET_9999 wrote:
Fri May 06, 2022 2:47 pm
great analysis as usual @quietvoid ... I need to try to understand your vs-nlq script (assuming that's what you used to check FEL)...
Couldn’t have said it better. @quietvoid doing gods work over here :lol:
Shield TV 2017 -> LG DSN10YG Soundbar with SPK8 Rears -> LG B1 OLED

quietvoid
Posts: 373
Joined: Sun Apr 19, 2020 4:15 pm

Re: Dolby Vision now possible through MP4 Mux.

#6476 Post by quietvoid » Sat May 07, 2022 1:39 pm

It seems the Koch Media Lamb release might not play in Dolby Vision normally: https://github.com/justdan96/tsMuxer/is ... 1120210769

RESET_9999
Posts: 2090
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

#6477 Post by RESET_9999 » Sat May 07, 2022 5:11 pm

andy22 wrote:
Fri May 06, 2022 9:55 pm
@RESET_9999 Hi quick question, so using your scripts its not possible to convert DV P8/7 to P5? Is that because of the different colorspace?

thanks
Well, you can force any DV profile (wrong one included) with the mp4muxer modes.

Image

Godmax
Posts: 4
Joined: Fri Apr 22, 2022 6:37 pm

Re: Dolby Vision now possible through MP4 Mux.

#6478 Post by Godmax » Sat May 07, 2022 8:44 pm

How to add black bars to mkv/m2ts dolby vision video files without losing quality?

Gatorman
Posts: 79
Joined: Thu Feb 10, 2022 3:47 pm

Re: Dolby Vision now possible through MP4 Mux.

#6479 Post by Gatorman » Sat May 07, 2022 9:05 pm

Godmax wrote:
Sat May 07, 2022 8:44 pm
How to add black bars to mkv/m2ts dolby vision video files without losing quality?
I don't believe there is a way to simply add black bars to an existing file. You would need to encode the file with the correct padding values. Then make sure to edit the DV L5 metadata to account for the black bars. There is always the potential for quality loss from encoding a file already encoded from a full rip.
More reasons to collect physical media. 2019 Shield TV Pro.

kazuma
Posts: 162
Joined: Fri Nov 08, 2019 9:51 pm

Re: Dolby Vision now possible through MP4 Mux.

#6480 Post by kazuma » Mon May 09, 2022 10:05 am

so the best udh player voor dolby vision mp4 is the sony ubp-x700? which one you guys recommended? or the LG UBK90?

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