Dolby Vision now possible through MP4 Mux.

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AndreasT
Posts: 21
Joined: Tue Dec 15, 2020 7:10 am

Re: Dolby Vision now possible through MP4 Mux.

#4156 Post by AndreasT » Fri Jan 15, 2021 6:12 am

reik_ wrote:
Thu Jan 14, 2021 11:40 pm
Hi all!

what am I doing wrong?
Did you start the other command window first, and you have that running?

agneva
Posts: 61
Joined: Mon Jan 06, 2020 11:42 am

Re: Dolby Vision now possible through MP4 Mux.

#4157 Post by agneva » Fri Jan 15, 2021 7:04 am

konokage wrote:
Thu Jan 14, 2021 6:39 pm

The Ryan DV DL 07.06.mp4 did trigger DV in PLEX for my TCL tv. Looked Great. So did the mkv HDR10 file.
The Ryan DV SL 05.06.mp4 did trigger DV but the scene was almost all dark.
HDR10 should look right, the sky is very smooth
SL 05.06 should look wrong, too dark and the light sky is pumping.
DL 07.06 should look right, no pumping and very fine grain

On CX9LA internal player SL+DL is the same, because the internal player ignores EL.

Do you use Plex on your TCL TV internal ?

reik_
Posts: 2
Joined: Thu Jan 14, 2021 11:35 pm

Re: Dolby Vision now possible through MP4 Mux.

#4158 Post by reik_ » Fri Jan 15, 2021 8:06 am

AndreasT wrote:
Fri Jan 15, 2021 6:12 am

Did you start the other command window first, and you have that running?

yeah, first window is ok.

konokage
Posts: 3
Joined: Wed Jan 13, 2021 9:29 pm

Re: Dolby Vision now possible through MP4 Mux.

#4159 Post by konokage » Fri Jan 15, 2021 9:39 am

agneva wrote:
Fri Jan 15, 2021 7:04 am
konokage wrote:
Thu Jan 14, 2021 6:39 pm

The Ryan DV DL 07.06.mp4 did trigger DV in PLEX for my TCL tv. Looked Great. So did the mkv HDR10 file.
The Ryan DV SL 05.06.mp4 did trigger DV but the scene was almost all dark.
HDR10 should look right, the sky is very smooth
SL 05.06 should look wrong, too dark and the light sky is pumping.
DL 07.06 should look right, no pumping and very fine grain

On CX9LA internal player SL+DL is the same, because the internal player ignores EL.

Do you use Plex on your TCL TV internal ?
Yes I use the plex app on the TCL TV. The mp4 works great. But when it comes to my friends DV MKV file. DV won't trigger. What I'd like to do is change the container to DV MP4. But I'm very new to this and don't know the steps to get to it. If its even possible to get to it.

magnetoeric
Posts: 22
Joined: Thu Nov 12, 2020 3:21 pm

Re: Dolby Vision now possible through MP4 Mux.

#4160 Post by magnetoeric » Sat Jan 16, 2021 4:56 pm

agneva wrote:
Fri Jan 15, 2021 7:04 am
konokage wrote:
Thu Jan 14, 2021 6:39 pm

The Ryan DV DL 07.06.mp4 did trigger DV in PLEX for my TCL tv. Looked Great. So did the mkv HDR10 file.
The Ryan DV SL 05.06.mp4 did trigger DV but the scene was almost all dark.
HDR10 should look right, the sky is very smooth
SL 05.06 should look wrong, too dark and the light sky is pumping.
DL 07.06 should look right, no pumping and very fine grain

On CX9LA internal player SL+DL is the same, because the internal player ignores EL.

Do you use Plex on your TCL TV internal ?
Thanks for the sample files. I played them on my CX with internal player and HDR picture looked so much brighter, but DV (both profile 5 and 7) looked darker but the overall picture felt a bit sharper (and more detailed ) compared to HDR. Do you think only the internal player ignores EL? I tried with plex, but didn't find any difference between internal player and plex.

deadchip12
Posts: 379
Joined: Thu May 02, 2019 2:49 am

Re: Dolby Vision now possible through MP4 Mux.

#4161 Post by deadchip12 » Sun Jan 17, 2021 4:58 am

agneva wrote:
Fri Jan 15, 2021 7:04 am
On CX9LA internal player SL+DL is the same, because the internal player ignores EL.
Is that an issue?

EDIT: I just played all 3 of your test files on my C9 (not CX). The DV SL file looks wrong with some kind of duplicated images overlaying each other. The DV DL file and the HDR10 file, however, play fine and look right. So there's sth wrong with the internal player of the CX since you said the DV DL and DV SL file look the same on your CX? That's surprising considering the CX is the newer model compared to the C9. I also heard someone say that was fixed in the latest firmware?

agneva
Posts: 61
Joined: Mon Jan 06, 2020 11:42 am

Re: Dolby Vision now possible through MP4 Mux.

#4162 Post by agneva » Sun Jan 17, 2021 2:37 pm

Of course there is an issue.

If you see the white sky is pumping / picture is to dark, the (F)EL is not decoded !

in my opinion the CX can only decode the Metadata (RPU) of DV, not the second HEVC stream.

maybe the older LG TV can do, I don´t know... to find out, I uploaded the samples for you.

deadchip12
Posts: 379
Joined: Thu May 02, 2019 2:49 am

Re: Dolby Vision now possible through MP4 Mux.

#4163 Post by deadchip12 » Sun Jan 17, 2021 5:06 pm

agneva wrote:
Sun Jan 17, 2021 2:37 pm
Of course there is an issue.

If you see the white sky is pumping / picture is to dark, the (F)EL is not decoded !

in my opinion the CX can only decode the Metadata (RPU) of DV, not the second HEVC stream.

maybe the older LG TV can do, I don´t know... to find out, I uploaded the samples for you.
Yeah my c9 plays the DV DL just fine.

Is your CX on the latest firmware?

agneva
Posts: 61
Joined: Mon Jan 06, 2020 11:42 am

Re: Dolby Vision now possible through MP4 Mux.

#4164 Post by agneva » Sun Jan 17, 2021 5:16 pm

with the firmware before it doesn´t play DV DL mp4 :!:

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

Re: Dolby Vision now possible through MP4 Mux.

#4165 Post by Manixx2020beyound » Sun Jan 17, 2021 6:18 pm

5ED00217-56EF-4440-B746-9591A31684D2.jpeg
5ED00217-56EF-4440-B746-9591A31684D2.jpeg (381.23 KiB) Viewed 23793 times
agneva wrote:
Sun Jan 17, 2021 5:16 pm
with the firmware before it doesn´t play DV DL mp4 :!:
CX plays fel fine in usb mp4 dl dv.
Firmware#
Tlc 6 series plays dv fel as well usb.

Wanderlust3K
Posts: 16
Joined: Tue Dec 08, 2020 1:06 pm

Re: Dolby Vision now possible through MP4 Mux.

#4166 Post by Wanderlust3K » Sun Jan 17, 2021 10:24 pm

agneva wrote:
Sun Jan 17, 2021 2:37 pm
Of course there is an issue.

If you see the white sky is pumping / picture is to dark, the (F)EL is not decoded !

in my opinion the CX can only decode the Metadata (RPU) of DV, not the second HEVC stream.

maybe the older LG TV can do, I don´t know... to find out, I uploaded the samples for you.
THIS !

MEL files look ok
FEL files look ultra dark.

I had a C7 before the CX and FEL files looked fine on the C7.



Manixx2020beyound wrote:
Sun Jan 17, 2021 6:18 pm
5ED00217-56EF-4440-B746-9591A31684D2.jpeg
CX plays fel fine in usb mp4 dl dv.
Firmware#
Tlc 6 series plays dv fel as well usb.
CX did not play DV (DTDL) mp4 prior to lastest firmware.

They do play NOW but as @Agneva pointed out, FEL files on CX look bad, too dark, as if EL was ignored alltogether.

That would explain the lack of support at launch.

Who knows maybe, the CX only has 1 decoder instead of the 2 required, would not surprise me, manufacturers undercut sucessfull product lines for profit all the time.

Have seen this happen a lot, a product gets fame for its quality and then next versions are cutdown for profit with inferior materials or features.

Maybe LG thougth no one would notice since streaming is MEL and that would really suck, i dont see much difference beetween DV MEL vs plain HDR + dynamic tonemaping or HDR10+, DV was about FEL.

shawnc22
Posts: 637
Joined: Tue Jan 21, 2020 7:40 am

Re: Dolby Vision now possible through MP4 Mux.

#4167 Post by shawnc22 » Sun Jan 17, 2021 10:48 pm

Wanderlust3K wrote:
Sun Jan 17, 2021 10:24 pm
Who knows maybe, the CX only has 1 decoder instead of the 2 required, would not surprise me, manufacturers undercut sucessfull product lines for profit all the time.

Have seen this happen a lot, a product gets fame for its quality and then next versions are cutdown for profit with inferior materials or features.

Maybe LG thougth no one would notice since streaming is MEL and that would really suck, i dont see much difference beetween DV MEL vs plain HDR + dynamic tonemaping, DV was about FEL.
Could very well be the case. Although I will say that the initial support for DTDL DV in mp4s on a smart tv has always been a bit odd. It could've just been a lucky coincidence with the early implementation of DV. Since FEL content is only found on bluray disks, TVs honestly have no need to have two decoders available for DV.

deadchip12
Posts: 379
Joined: Thu May 02, 2019 2:49 am

Re: Dolby Vision now possible through MP4 Mux.

#4168 Post by deadchip12 » Mon Jan 18, 2021 4:51 am

agneva wrote:
Sun Jan 17, 2021 2:37 pm
Of course there is an issue.

If you see the white sky is pumping / picture is to dark, the (F)EL is not decoded !

in my opinion the CX can only decode the Metadata (RPU) of DV, not the second HEVC stream.

maybe the older LG TV can do, I don´t know... to find out, I uploaded the samples for you.
So I just compared the info of your DV SL file and a DV SL file I downloaded online. The difference is yours is Main10@5.1 while the other file is Main10@5.2. Your DV SL file looks wrong on my c9 but the other file looks correct. Does this mean anything?
Image

shawnc22
Posts: 637
Joined: Tue Jan 21, 2020 7:40 am

Re: Dolby Vision now possible through MP4 Mux.

#4169 Post by shawnc22 » Mon Jan 18, 2021 6:11 am

deadchip12 wrote:
Mon Jan 18, 2021 4:51 am
agneva wrote:
Sun Jan 17, 2021 2:37 pm
Of course there is an issue.

If you see the white sky is pumping / picture is to dark, the (F)EL is not decoded !

in my opinion the CX can only decode the Metadata (RPU) of DV, not the second HEVC stream.

maybe the older LG TV can do, I don´t know... to find out, I uploaded the samples for you.
So I just compared the info of your DV SL file and a DV SL file I downloaded online. The difference is yours is Main10@5.1 while the other file is Main10@5.2. Your DV SL file looks wrong on my c9 but the other file looks correct. Does this mean anything?
Image
Not sure exactly what the Main10 part means, but an obvious explanation for the difference you see in those two files you're comparing is that one is a from a native profile 5 source and the other is converted from a profile 7 disk. Given that there is no colorspace transformation during the conversion, it's not surprising that the resulting "profile 5" video might look wrong.

agneva
Posts: 61
Joined: Mon Jan 06, 2020 11:42 am

Re: Dolby Vision now possible through MP4 Mux.

#4170 Post by agneva » Mon Jan 18, 2021 6:51 am

Manixx2020beyound wrote:
Sun Jan 17, 2021 6:18 pm
CX plays fel fine in usb mp4 dl dv.
Firmware#
Tlc 6 series plays dv fel as well usb.
You are telling me, that Ryan DL.mp4 is playing correct on your CX ?
So I just compared the info of your DV SL file and a DV SL file I downloaded online. The difference is yours is Main10@5.1 while the other file is Main10@5.2. Your DV SL file looks wrong on my c9 but the other file looks correct. Does this mean anything?
Ryan SL must look wrong because the EL is missing :!:
SL is there to make a difference to DL version visible.
L5.1 is correct, like every Bluray.
Your Mandalorian is a pirated, reencoded copy :roll: you can tell the x265 encoder what ever you want, maybe L8.5:
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