Dolby Vision now possible through MP4 Mux.

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RESET_9999
Posts: 2378
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

SamuriHL wrote:
Sun Oct 11, 2020 7:15 pm
shawnc22 wrote:
Sun Oct 11, 2020 7:01 pm

It's really too bad that the firestick can't handle lossless audio. That's more of a deal breaker for me than the seemingly better DV implementation.
Wait it can't do lossless audio?? Yea, ok, that's a deal breaker for me as well. Damn. (You can tell how much I've used my firestick LOL)
also no 24/23hz support on plex i think ?

so it's either:

1- shield dv issues + lossless audio + plex library
2- Firestick proper dv + no lossless audio + plex library
3- x700 / oppo proper dv + lossless audio + no plex library

one day, hopefully, we can get a device that can do it all.. i bet it will end up being an HTPC
ragico
Posts: 264
Joined: Fri Feb 15, 2019 1:09 am

Re: Dolby Vision now possible through MP4 Mux.

Post by ragico »

RESET_9999 wrote:
Sun Oct 11, 2020 7:34 pm


also no 24/23hz support on plex i think ?
Firestick supports 24/23hz on plex.
quietvoid
Posts: 377
Joined: Sun Apr 19, 2020 4:15 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by quietvoid »

ragico wrote:
Sun Oct 11, 2020 7:51 pm
RESET_9999 wrote:
Sun Oct 11, 2020 7:34 pm


also no 24/23hz support on plex i think ?
Firestick supports 24/23hz on plex.
Currently you have to disable the firestick's own refresh rate matching and enable Plex's to get DoVi from Plex. Otherwise it's not consistent.
Haven't verified but it seems to switch the display just fine.
ragico
Posts: 264
Joined: Fri Feb 15, 2019 1:09 am

Re: Dolby Vision now possible through MP4 Mux.

Post by ragico »

quietvoid wrote:
Sun Oct 11, 2020 7:57 pm
ragico wrote:
Sun Oct 11, 2020 7:51 pm
RESET_9999 wrote:
Sun Oct 11, 2020 7:34 pm


also no 24/23hz support on plex i think ?
Firestick supports 24/23hz on plex.
Currently you have to disable the firestick's own refresh rate matching and enable Plex's to get DoVi from Plex. Otherwise it's not consistent.
Haven't verified but it seems to switch the display just fine.
I have not disabled firestick own refresh rate, It is enabled. Never a problem.
chros
Posts: 102
Joined: Sun Sep 20, 2020 8:36 am

Re: Dolby Vision now possible through MP4 Mux.

Post by chros »

A note about the phrase "LLDV", since you use it recently:
- this is a mode of the display device and not the player, nor the file!
- although the player triggers it based on its setting (e.g. Oppo)
- it has nothing to do with the content itself (can be MEL/FEL DV)

In LLDV mode of a display device it disables its certain image processings (that are enabled otherwise) to reduce latency between itself and the "player" device. This can result in banding/posterization, especially with low bitrate DV content, such as streaming profile 5 MEL DV.
Hence it's not desirable at all to use LLDV mode when watching DV video content.

For example, Sony Oleds don't have full DV support, only LLDV. Even Vincent recently stated the above issues in his late Sony reviews.
Other Oleds that have full DV implementation (LG, Panasonic, Philips) can be set into LLDV mode, e.g. by enabling player-led DV processing on Oppo.
Last edited by chros on Sun Oct 11, 2020 9:38 pm, edited 2 times in total.
SamuriHL
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Joined: Mon Jun 14, 2010 5:32 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by SamuriHL »

So I'd still lose lossless audio formats which is also a deal breaker for me. I didn't build an ATMOS audio system for no reason. UGH. Yea, I agree, we may eventually get to a full solution but we appear to be falling just short. Fortunately I still have my UB820 for now.
shawnc22
Posts: 637
Joined: Tue Jan 21, 2020 7:40 am

Re: Dolby Vision now possible through MP4 Mux.

Post by shawnc22 »

chros wrote:
Sun Oct 11, 2020 8:17 pm
A note about the phrase "LLDV", since you use it recently:
- this is a mode of the display device and not the player, nor the file!
- although the player triggers it based on its setting (e.g. Oppo)
- it has nothing to do with the content itself (can be MEL/FEL DV)
Only thing I'd like to add is that the player has to also support the full implementation of DV for non-LLDV. Some players, such as the xbox one x, is only capable of outputting LLDV regardless of the display's capabilities.
Manixx2020beyound
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Joined: Thu Oct 08, 2020 5:19 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by Manixx2020beyound »

LLDV is Player processed algorithm vs uhd tv doing the work rgb8bit/12bit dv algorithm.
Example xbox1 canot do regular dv even if your uhd tv can.

Both result in identical visual output LLDV & dv.
Last edited by Manixx2020beyound on Sun Oct 11, 2020 10:29 pm, edited 1 time in total.
SamuriHL
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Joined: Mon Jun 14, 2010 5:32 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by SamuriHL »

Additionally the HD Fury can force LLDV.
Manixx2020beyound
Posts: 127
Joined: Thu Oct 08, 2020 5:19 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by Manixx2020beyound »

Also most of the red push that has bin stated over & over are mostly from folks playing back regular uhd doblyvision rgb8bit on the shield so it’s not a LLDV related red push on the shield.
Vudu,Disney,MA profile 5 all have no red push issuses so it is shield specific for the uhd profile.
Manixx2020beyound
Posts: 127
Joined: Thu Oct 08, 2020 5:19 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by Manixx2020beyound »

Tonight I’ll test maldorian profile 5 real dv in x700 vs Disney maldorian dv shield tv Disney.
All in doblyvision.
ray_007
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Joined: Sat Oct 03, 2020 8:30 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by ray_007 »

Has anyone had any success on making DV work in 'Alita & Godzilla King of Monster' on Firestick4k? All I get is black screen with sound only. Is it because it's a HDR10+ and DV title? Tried Muxing in MP4 but getting HDR10+ and no DR :/
whiplash1
Posts: 38
Joined: Sun Apr 19, 2020 7:40 am

Re: Dolby Vision now possible through MP4 Mux.

Post by whiplash1 »

ray_007 wrote:
Mon Oct 12, 2020 1:12 am
Has anyone had any success on making DV work in 'Alita & Godzilla King of Monster' on Firestick4k? All I get is black screen with sound only. Is it because it's a HDR10+ and DV title? Tried Muxing in MP4 but getting HDR10+ and no DR :/
I've tested Godzilla KOTM on my android TV (exact same DV implementation as Firestick), it plays fine. I don't have Alita, sorry.
RESET_9999
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Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

DV p5 Streaming contents comparisons between the x700 and the Shield.

Mandalorian:
x700 web-dl VS Shield disney+ stream: https://screenshotcomparison.com/compar ... /picture:1

ALITA:
x700 vudu VS Shield vudu: https://screenshotcomparison.com/compar ... /picture:1
hepe9
Posts: 71
Joined: Mon Jun 03, 2019 11:04 am

Re: Dolby Vision now possible through MP4 Mux.

Post by hepe9 »

RESET_9999 wrote:
Wed Sep 23, 2020 11:29 pm
so here are some comparisons. Pitch black room without any light, OLED TV, Camera settings locked, Tripod, and Bluetooth triggering.

Dual-layer FEL untouched VS Dual-layer MEL converted
https://screenshotcomparison.com/comparison/6565

the untouched FEL is brighter & has more punch, no doubt. But I think this is normal because I'm seeing the same kind(if not more) of difference when I compare the Spears and Munsil FEL & MEL

Spears and Munsil dual-layer FEL untouched VS Spears and Munsil dual-layer MEL untouched
https://screenshotcomparison.com/comparison/6564

Dual-layer MEL untouched VS Single-layer MEL (el+RPU) untouched
https://screenshotcomparison.com/comparison/6566

also from the bluray discs I inspected, FEL DV hevc stream is the actual movie with a white/grey tint on it while MEL DV is just a static white/grey image.
We still can see the video in the MEL conversion so that could be the reason why it doesn't play on the x700. I can add some random MEL track to any HDR10 hevc stream and it will still play in DV (single or dual layer). with some flickering but it triggers DV.


real FEL / real MEL / MEL conversion


ImageImage Image
RESET_9999 wrote:
Sun Oct 11, 2020 2:28 pm
my friend had some LLDV tonemapped to SDR capture samples for me today. Good news for the Firestick Tv owners, it looks like it does DV the right way even though I see a small difference on white in the comparison #1 compared to the x700.


x700 vs shield vs firestick vs Chromecast. (use number keys on your keyboard to switch between the image)
https://slow.pics/c/QBBIxewf

SKYFALL MEL DV.... 3 comparisons of each device:

x700 vs Firestick: https://screenshotcomparison.com/compar ... /picture:2

x700 vs Shield: https://screenshotcomparison.com/compar ... /picture:2

x700 vs Chromecast: https://screenshotcomparison.com/compar ... /picture:2

Firestick vs Shield: https://screenshotcomparison.com/compar ... /picture:2

Shield = worse of all, oversaturation and ugly red artifacts everywhere. -----> btw I didn't look for a movie with artifacts, I took the first MEL movie I found and it still had red artifacts.
Chromecast = oversaturation but no red artifacts.


Spears and Munsil, x700 Original MEL vs FEL to mel conversion: https://screenshotcomparison.com/comparison/7017


same method:
-all the players send LLDV.
-Vertex tone map DV to SDR using the same settings.
- The signal is captured using the same settings.
I have a question, why in the first comparative, the fel to mel is more darkness, and now is the same?

Thanks
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