Dolby Vision now possible through MP4 Mux.

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daicon
Posts: 7
Joined: Mon Jan 11, 2021 10:37 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by daicon »

lexyz wrote:
Wed Jan 20, 2021 7:02 pm
daicon wrote:
Wed Jan 20, 2021 2:00 pm
Where does the information in the SDK come from?

If it is finally so, I understand that the SDK, Oppo and similar players will get an update to fix it, won't they?
Can you put test images?

thanks
SDK is Dolby's domain.
If Dolby unwilling to fix it then all UHD playes are doomed to output crippled picture in LLDV mode

I belive I've shared images before, but here they are https://slow.pics/c/SHnEtyql
There is 4 sets of 4 pictures:
X700 HDR
X700 DVp7 DTDL DV
X700 DVp8 DV
Shield DVp8 DV
Also the X700 DV LLDV version shows more pasteurization and artifacts, but they are very difficult to capture on camera.

And there is a message from Stacey Spears on blu-ray.com forum about bug in UHD blu-ray players https://forum.blu-ray.com/showpost.php? ... tcount=333
He is a co-creator of demo material I use for test. No one knows better what it should look like.
But....
Then the problem is for all TV, or only Sony?
Dont understand

Thabkssss
Manixx2020beyound
Posts: 127
Joined: Thu Oct 08, 2020 5:19 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by Manixx2020beyound »

lexyz wrote:
Wed Jan 20, 2021 6:48 pm
RESET_9999 wrote:
Wed Jan 20, 2021 3:10 pm
yep, just sell that TV and get an LG lol.
Even Dolby recommends to the colorist the LG C7 or newer for previewing.
Not an option. I like Sony's motion handling and HDR10 8)
New 2021 Bravias will support TV-led DV
P7 fel hdr10 vs p7 fel dv
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RESET_9999
Posts: 1853
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

you got me curious. I checked that scene on my x700 and I find FEL DV sightly cleaner than HDR10 and P8 DV.
thank's @lexyz for the samples

HDR10 vs P7 FEL: https://screenshotcomparison.com/comparison/10301

a lot more obvious with the capture card.. wow:
https://screenshotcomparison.com/comparison/10303
thank's @Manixx2020beyound
Last edited by RESET_9999 on Thu Jan 21, 2021 1:39 am, edited 1 time in total.
JavierAlbadalejo
Posts: 29
Joined: Sat Mar 28, 2015 1:29 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by JavierAlbadalejo »

I'm not regretting my CX OLED, it's fantastic, as a display I love it. It's so good.

I'm not gonna end up worrying if I ever put a DV movie through Plex and it looks bad for some reason. There's always the HDR playback...
quietvoid
Posts: 371
Joined: Sun Apr 19, 2020 4:15 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by quietvoid »

RESET_9999 wrote:
Thu Jan 21, 2021 12:37 am
you got me curious. I checked that scene on my x700 and I find FEL DV sightly cleaner than HDR10 and P8 DV.
thank's @lexyz for the samples

HDR10 vs P7 FEL: https://screenshotcomparison.com/comparison/10301

a lot more obvious with the capture card.. wow:
https://screenshotcomparison.com/comparison/10303
thank's @Manixx2020beyound

but unless @Manixx2020beyound gave me the wrong capture sample, it looks that the p8 single layer file also fixes the artifacts.. WTF??? now I'm confused...
https://screenshotcomparison.com/comparison/10304
Possibly better processing, dithering by the Dolby Vision engine regardless of EL.
RESET_9999
Posts: 1853
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

quietvoid wrote:
Thu Jan 21, 2021 1:39 am
Possibly better processing, dithering by the Dolby Vision engine regardless of EL.
we found out what happened, he misnamed the capture of the p4 dual layer sample from lexy to p8. sorry

here's the real P8 SL vs HDR10 source: https://screenshotcomparison.com/comparison/10306
so the artifacts are there, appears different because of the brightness difference probably caused by the dynamic metadata.

So yes the FEL can make a HUGE difference.
quietvoid
Posts: 371
Joined: Sun Apr 19, 2020 4:15 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by quietvoid »

RESET_9999 wrote:
Thu Jan 21, 2021 1:52 am
So yes the FEL can make a HUGE difference.
But does it work on the Shield after all?
RESET_9999
Posts: 1853
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

quietvoid wrote:
Thu Jan 21, 2021 2:00 am
RESET_9999 wrote:
Thu Jan 21, 2021 1:52 am
So yes the FEL can make a HUGE difference.
But does it work on the Shield after all?
nop, i confirmed yesterday that the shield is ignoring the EL. Well Nvidia staff also said it a while ago as Shawn said.
see:
https://www.makemkv.com/forum/viewtopic ... 00#p104113
lexyz
Posts: 119
Joined: Fri May 08, 2020 5:32 am

Re: Dolby Vision now possible through MP4 Mux.

Post by lexyz »

Total Recall is extreme example.
EL is about 40% of bitrate in this scene. Very rare case
Demo-level stuff 8)
Jokes aside it's a defect and it's a mistery how such grade passed quality control.

Seems like all film grain remains in FEL :)
Do you understand now why StudioCanal disks called "blocky-vision" on blu-ray.com? :lol:
Bravia XF90, Shield TV Pro'19, UBP-X700
RESET_9999
Posts: 1853
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

lexyz wrote:
Thu Jan 21, 2021 6:49 am
Jokes aside it's a defect and it's a mistery how such grade passed quality control.
Seems like all film grain remains in FEL :)
Do you understand now why StudioCanal disks called "blocky-vision" on blu-ray.com? :lol:
yep, truly incredible bad encoding.
Manixx2020beyound
Posts: 127
Joined: Thu Oct 08, 2020 5:19 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by Manixx2020beyound »

RESET_9999 wrote:
Thu Jan 21, 2021 2:36 pm
lexyz wrote:
Thu Jan 21, 2021 6:49 am
Jokes aside it's a defect and it's a mistery how such grade passed quality control.
Seems like all film grain remains in FEL :)
Do you understand now why StudioCanal disks called "blocky-vision" on blu-ray.com? :lol:
yep, truly incredible bad encoding.
Just wondering how much more off an impact is the fel in rgb dv 8bit doblyvision.
I think the super red color change has something to do with the bt2020 vs p3 encoding.
Tomas
Posts: 46
Joined: Tue Aug 11, 2020 7:47 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by Tomas »

Greetings to you all. I would like to ask what it looks like now playing with Dolby Vision movies in mkv in Zidoo z9x. Does FEL and MEL play it? I have a Shield for 2019 and I'm considering buying a Zidoo z9x if it pays off. SHIELD plays just fine FEL and MEL. I read that the Zidoo z9x has better colors. Thank you for your help.
JavierAlbadalejo
Posts: 29
Joined: Sat Mar 28, 2015 1:29 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by JavierAlbadalejo »

So, you guys saying that DV on MKV on Plex/Shield is faulty.. will it ever be fixed in a possible update no matter how long it takes, or are we doomed?
shawnc22
Posts: 636
Joined: Tue Jan 21, 2020 7:40 am

Re: Dolby Vision now possible through MP4 Mux.

Post by shawnc22 »

JavierAlbadalejo wrote:
Thu Jan 21, 2021 6:42 pm
So, you guys saying that DV on MKV on Plex/Shield is faulty.. will it ever be fixed in a possible update no matter how long it takes, or are we doomed?
As far as I know, FEL titles will never be played to their full capacity on the Shield, because it's simply a hardware limitation. MEL titles on the other hand and the color issues that exist with them, nvidia is still working on it, but since DV rips from disks are not really officially supported, only time will tell if and when that gets sorted out.
JavierAlbadalejo
Posts: 29
Joined: Sat Mar 28, 2015 1:29 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by JavierAlbadalejo »

I do have a Sony UHD BD player that has Dolby Vision, particularly the 700 something, but with the new TV I legit do not have the space for it, so I can not hook it up in any form.

But even if it was possible, I do prefer the much easier, faster, click and play part of streaming instead of putting disc (remember in the Sony Blu rays, you have to manually switch on and off DV everytime you play a DV disc!)..
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