Dolby Vision now possible through MP4 Mux.

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Amused
Posts: 29
Joined: Wed Jul 27, 2022 1:00 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by Amused » Mon Apr 10, 2023 9:30 pm

Hey guys, did anyone find a USB to ethernet adapter that works with the X800m2?
UHD players: Sony X700, Zidoo Z1000 Pro
Audio system: Sony HT-A9
TV: Sony 77A80J

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

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 » Mon Apr 10, 2023 9:44 pm

spl147 wrote:
Mon Apr 10, 2023 9:23 pm
So much info in the thread, so what i gather is by converting a DV mkv with FEL to profile 8.1 we loose FEL?

So it’s the same a playing a DV MKV on a zidoo or dune? FEL is discarded and only the rpu is used?
yes FEL is discarded but know that not every FEL movie can be converted to P8 (or played on non-fel devices) because some of them are expanding the picture brightness when BL and FEL are decoded by the player.
So the DV metadata in the RPU is meant to be played with the FEL brightness ONLY. Playing these FEL movies on a non-fel device will result in an image darker than the intended look.

Here's a list of FEL movies that expand brightness (still looking into my library to find more):
https://docs.google.com/spreadsheets/d/ ... sp=sharing
Last edited by RESET_9999 on Mon Apr 10, 2023 9:46 pm, edited 1 time in total.

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

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 » Mon Apr 10, 2023 9:45 pm

Amused wrote:
Mon Apr 10, 2023 9:30 pm
Hey guys, did anyone find a USB to ethernet adapter that works with the X800m2?
I tried mine and it didn't work.

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

Re: Dolby Vision now possible through MP4 Mux.

Post by quietvoid » Tue Apr 11, 2023 12:20 am

I had a look at the issues with Saving Private Ryan (1998) flickering without FEL devices: https://www.avsforum.com/threads/media- ... t-62474107
Might be interesting to some reading here too.

skull88
Posts: 56
Joined: Mon Mar 27, 2023 3:08 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by skull88 » Tue Apr 11, 2023 3:09 am

quietvoid wrote:
Tue Apr 11, 2023 12:20 am
I had a look at the issues with Saving Private Ryan (1998) flickering without FEL devices: https://www.avsforum.com/threads/media- ... t-62474107
Might be interesting to some reading here too.
Thanks for confirming and looking into SPR. I was also surprised that people just brushed this flickering off as purely a problem with playback of P7 DV w/FEL for media players/apps or something, and not the actual retail UHD BD authoring or DV metadata somehow, considering I've basically never come across something that flickered this much and so obviously from frame to frame, or at least it's super rare for a disc to have this. Re-doing my own L1 DV metadata in Resolve for this movie also fixed that issue playing back on Shield Pro for example, which shows it wasn't inherent to the HDR10 BL, but something to do with the FEL/DV and how it was implemented and/or how it's processed, as you confirmed. This movie deserves another pass maybe for an anniversary or Criterion even, so perhaps it will get fixed one day, as otherwise it's a fantastic 4K UHD. Cheers for the work and info!
Last edited by skull88 on Tue Apr 11, 2023 1:38 pm, edited 1 time in total.

codeXRes
Posts: 20
Joined: Mon Jan 20, 2020 1:10 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by codeXRes » Tue Apr 11, 2023 11:30 am

Did anyone manage to test the FEL support in Ugoos by the kodi.monsoons build before it was sadly pulled?

https://forum.kodi.tv/showthread.php?tid=372504

johnjon94
Posts: 35
Joined: Thu Nov 11, 2021 5:59 am

Re: Dolby Vision now possible through MP4 Mux.

Post by johnjon94 » Tue Apr 11, 2023 5:06 pm

RESET_9999 wrote:
Mon Apr 10, 2023 9:45 pm
I'm not sure if this has been pointed out yet, but the option to edit the L6 MaxCLL/MaxFLL based on the HDR10 BL MaxCLL/MaxFLL values doesn't seem to work properly. It seems that it only copies the L1 RPU content light level and uses that for L6 rather than the light level from the HDR10 file.

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

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 » Tue Apr 11, 2023 5:42 pm

johnjon94 wrote:
Tue Apr 11, 2023 5:06 pm
I'm not sure if this has been pointed out yet, but the option to edit the L6 MaxCLL/MaxFLL based on the HDR10 BL MaxCLL/MaxFLL values doesn't seem to work properly. It seems that it only copies the L1 RPU content light level and uses that for L6 rather than the light level from the HDR10 file.
It works as it should because static HDR10 maxcll/fall are often incorrect or not present.
I made this change a couple of versions ago when @quietvoid added the information in the rpu summary.

You can always use (2-1-1) and edit L6 with any value you want.

deadchip12
Posts: 285
Joined: Thu May 02, 2019 2:49 am

Re: Dolby Vision now possible through MP4 Mux.

Post by deadchip12 » Thu Apr 13, 2023 12:56 am

Are sony bluray players still the ultimate devices to get for playing dolby vision remuxes?

BublyOnFire
Posts: 4
Joined: Fri Apr 14, 2023 5:32 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by BublyOnFire » Fri Apr 14, 2023 5:34 pm

Thanks for your hard work @RESET_9999 8)
LG C1 55'' OLED + Sonos Beam 2 8)

BublyOnFire
Posts: 4
Joined: Fri Apr 14, 2023 5:32 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by BublyOnFire » Fri Apr 14, 2023 9:05 pm

RESET_9999 wrote:
Mon Apr 10, 2023 9:44 pm
spl147 wrote:
Mon Apr 10, 2023 9:23 pm
So much info in the thread, so what i gather is by converting a DV mkv with FEL to profile 8.1 we loose FEL?

So it’s the same a playing a DV MKV on a zidoo or dune? FEL is discarded and only the rpu is used?
yes FEL is discarded but know that not every FEL movie can be converted to P8 (or played on non-fel devices) because some of them are expanding the picture brightness when BL and FEL are decoded by the player.
So the DV metadata in the RPU is meant to be played with the FEL brightness ONLY. Playing these FEL movies on a non-fel device will result in an image darker than the intended look.

Here's a list of FEL movies that expand brightness (still looking into my library to find more):
https://docs.google.com/spreadsheets/d/ ... sp=sharing
Hi, Does this mean that we will never be able to put the profile 8 on the films you mention? Is there any way around it?
LG C1 55'' OLED + Sonos Beam 2 8)

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

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 » Sat Apr 15, 2023 1:09 pm

BublyOnFire wrote:
Fri Apr 14, 2023 9:05 pm
Is there any way around it?
no , not without baking the EL into the BL. (require re-encoding)
deadchip12 wrote:
Thu Apr 13, 2023 12:56 am
Are sony bluray players still the ultimate devices to get for playing dolby vision remuxes?
yes

BublyOnFire
Posts: 4
Joined: Fri Apr 14, 2023 5:32 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by BublyOnFire » Sat Apr 15, 2023 2:07 pm

RESET_9999 wrote:
Sat Apr 15, 2023 1:09 pm
BublyOnFire wrote:
Fri Apr 14, 2023 9:05 pm
Is there any way around it?
no , not without baking the EL into the BL. (require re-encoding)
What do you mean by
putting the el in the bl? Are you talking about generating a DV XML file by resolve and re-injecting it? Like in this tutorial? https://youtu.be/ZdFiqATo_j8
LG C1 55'' OLED + Sonos Beam 2 8)

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

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 » Sat Apr 15, 2023 3:41 pm

BublyOnFire wrote:
Sat Apr 15, 2023 2:07 pm
Are you talking about generating a DV XML file by resolve and re-injecting it? Like in this tutorial? https://youtu.be/ZdFiqATo_j8
no, I mean the EL and BL are re-encoded together which results in a new BL that will work properly with the original RPU(converted to P8).

like this...

BL+EL baked + original rpu converted to P8:
https://drive.google.com/file/d/18OEcZP ... share_link

BL without EL baked + original rpu converted to P8 (WRONG):
https://drive.google.com/file/d/1g-SCg0 ... share_link

BL + Resolve generated RPU:
https://drive.google.com/file/d/13jBeX_ ... share_link

Original P7 ST-DL:
https://drive.google.com/file/d/1AflJT_ ... share_link

Original P7 DT-DL:
https://drive.google.com/file/d/15OcPsW ... share_link

BublyOnFire
Posts: 4
Joined: Fri Apr 14, 2023 5:32 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by BublyOnFire » Sat Apr 15, 2023 4:03 pm

Thank you for your explanation. I appreciate it.
LG C1 55'' OLED + Sonos Beam 2 8)

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