Dolby Vision now possible through MP4 Mux.

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jayf95
Posts: 8
Joined: Thu Dec 17, 2020 9:08 am

Re: Dolby Vision now possible through MP4 Mux.

Post by jayf95 »

lexyz wrote:
Fri Jan 22, 2021 9:06 am
jayf95 wrote:
Fri Jan 22, 2021 8:56 am
Also if you or anyone else could answer this: assuming playback of DV content in remuxes improves in the near future, will it make any differences whether the TV supports TV led DV vs player led DV? I'm debating between a sony x950h (player led) and x900h (TV led-what I currently have but considering switching due to better PQ/higher peak brightness in the 950h)
Hold for XJ models:
TV-led
New XR processor
I can't unfortunately. The return period for my x900h ends in mid February and if I return the TV I wont have one to replace it (I sold my old TV).
Manixx2020beyound
Posts: 67
Joined: Thu Oct 08, 2020 5:19 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by Manixx2020beyound »

lexyz wrote:
Fri Jan 22, 2021 7:57 am
quietvoid wrote:
Fri Jan 22, 2021 12:49 am
The Firestick Dolby Vision decoder panics and renders a black screen when it encounters a file that contains both Dolby Vision and HDR10+ metadata.
The source of the --skip-hdr10plus switch :)

I basically implemented the same behavior on the fly before the data gets sent to the decoder.
I wonder is possbile to force non-dv video to play as dv via kodi on Shield TV?
It would help to better understand "red push" cause on Shield.
Since p7 and p8 are affected (both in TV-led and Player-led modes) and p5 is not there is only logical conclusion that something wrong with YCbCr processing on Shield's DV decoder. P5 is IPT
To prove it we should play plain HDR10 or SDR video via DV decoder.
But there is not possible for user to force DV output on Shield for non-dv video.
I can try forcing LLDV on the shield on hdr10 content it’s possible, did it before.
quietvoid
Posts: 80
Joined: Sun Apr 19, 2020 4:15 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by quietvoid »

lexyz wrote:
Fri Jan 22, 2021 7:57 am
I wonder is possbile to force non-dv video to play as dv via kodi on Shield TV?
I don't know about the Shield, but the Firestick only triggers Dolby Vision for the TV when there is proper metadata.
Otherwise, there is an option to have Dolby Vision enabled all the time. I don't think the Shield can do that.

jayf95 wrote:
Fri Jan 22, 2021 8:56 am
I'm out of the loop. Kodi can pay DV content now? Is this only for mp4s or mkvs as well?
MP4s with official releases, MKVs with custom builds: https://forum.kodi.tv/showthread.php?ti ... pid3003730
deadchip12
Posts: 116
Joined: Thu May 02, 2019 2:49 am

Re: Dolby Vision now possible through MP4 Mux.

Post by deadchip12 »

So an oled CX owner on avsforum just confirmed with me that the tv's internal media player couldn't play this DV DL test file properly: https://drive.google.com/file/d/1NK71Ck ... XLXEa/view

On my C9 it looked fine and played fine. Seems like LG did remove the ability to play dual layer dolby vision file from the CX (and probably upcoming oled tvs as well). That sucks.
lexyz
Posts: 95
Joined: Fri May 08, 2020 5:32 am

Re: Dolby Vision now possible through MP4 Mux.

Post by lexyz »

RESET_9999 wrote:
Thu Jan 21, 2021 12:37 am
a lot more obvious with the capture card.. wow:
https://screenshotcomparison.com/comparison/10303
thank's @Manixx2020beyound
Can you please recheck Shield TV on MIF bath fight scene with capture card?
https://screenshotcomparison.com/comparison/6913

Is it me or there is some noticable improvement with 8.2.2 update?
Can't spot red blocking while playing mkv via plex.
DV triggered

Maybe I just missed this very frame.

Meanwhile Dr Sleep still has noticable red push
Bravia XF90, Shield TV Pro'19, UBP-X700
dapope
Posts: 11
Joined: Fri Oct 09, 2020 4:54 am

Re: Dolby Vision now possible through MP4 Mux.

Post by dapope »

deadchip12 wrote:
Sat Jan 23, 2021 3:47 am
So an oled CX owner on avsforum just confirmed with me that the tv's internal media player couldn't play this DV DL test file properly: https://drive.google.com/file/d/1NK71Ck ... XLXEa/view

On my C9 it looked fine and played fine. Seems like LG did remove the ability to play dual layer dolby vision file from the CX (and probably upcoming oled tvs as well). That sucks.
As of the recent update CX can play P7 Dual Layer mp4s. But MEL only.
The 07.06 file you linked to is Dual Track, not Dual Layer.
deadchip12
Posts: 116
Joined: Thu May 02, 2019 2:49 am

Re: Dolby Vision now possible through MP4 Mux.

Post by deadchip12 »

dapope wrote:
Sat Jan 23, 2021 7:40 am
deadchip12 wrote:
Sat Jan 23, 2021 3:47 am
So an oled CX owner on avsforum just confirmed with me that the tv's internal media player couldn't play this DV DL test file properly: https://drive.google.com/file/d/1NK71Ck ... XLXEa/view

On my C9 it looked fine and played fine. Seems like LG did remove the ability to play dual layer dolby vision file from the CX (and probably upcoming oled tvs as well). That sucks.
As of the recent update CX can play P7 Dual Layer mp4s. But MEL only.
The 07.06 file you linked to is Dual Track, not Dual Layer.
Sorry could you explain what is the difference between dual track vs dual layer? And what do you mean by MEL only?
Manixx2020beyound
Posts: 67
Joined: Thu Oct 08, 2020 5:19 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by Manixx2020beyound »

lexyz wrote:
Sat Jan 23, 2021 7:23 am
RESET_9999 wrote:
Thu Jan 21, 2021 12:37 am
a lot more obvious with the capture card.. wow:
https://screenshotcomparison.com/comparison/10303
thank's @Manixx2020beyound
Can you please recheck Shield TV on MIF bath fight scene with capture card?
https://screenshotcomparison.com/comparison/6913

Is it me or there is some noticable improvement with 8.2.2 update?
Can't spot red blocking while playing mkv via plex.
DV triggered

Maybe I just missed this very frame.

Meanwhile Dr Sleep still has noticable red push
I’ll take a look later this morning.
aboulfad
Posts: 31
Joined: Sat Feb 09, 2019 12:51 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by aboulfad »

deadchip12 wrote:
Sat Jan 23, 2021 10:43 am
Sorry could you explain what is the difference between dual track vs dual layer? And what do you mean by MEL only?
Please read this informative post here.
[Oppo UDP-203, ATV 4K] —> Anthem MRX-720 —> LG OLED65E7P
AndreasT
Posts: 16
Joined: Tue Dec 15, 2020 7:10 am

Re: Dolby Vision now possible through MP4 Mux.

Post by AndreasT »

dapope wrote:
Sat Jan 23, 2021 7:40 am
deadchip12 wrote:
Sat Jan 23, 2021 3:47 am
So an oled CX owner on avsforum just confirmed with me that the tv's internal media player couldn't play this DV DL test file properly: https://drive.google.com/file/d/1NK71Ck ... XLXEa/view

On my C9 it looked fine and played fine. Seems like LG did remove the ability to play dual layer dolby vision file from the CX (and probably upcoming oled tvs as well). That sucks.
As of the recent update CX can play P7 Dual Layer mp4s. But MEL only.
The 07.06 file you linked to is Dual Track, not Dual Layer.
To throw in a little detail to the mix. CX can play Dual Track DV MP4 files, but the file has to have been made using mp4muxer v1.0.0. The latest version of mp4muxer, v1.0.1, does something with file that it isn't played by the tv anymore. I checked the code changes, and it may be the change where they introduce the Alternate Group flag. With v1.0.1 this is set to 1 for both the BL and the EL+RPU tracks, previously this was 0. The BL track is also set as the "default". It may be that this is either wrong for DV files from a MP4 spec point of view, or, the TV has a bug requiring the group to be 0. It is still required to be MEL.
dapope
Posts: 11
Joined: Fri Oct 09, 2020 4:54 am

Re: Dolby Vision now possible through MP4 Mux.

Post by dapope »

AndreasT wrote:
Sat Jan 23, 2021 12:39 pm
dapope wrote:
Sat Jan 23, 2021 7:40 am
deadchip12 wrote:
Sat Jan 23, 2021 3:47 am
So an oled CX owner on avsforum just confirmed with me that the tv's internal media player couldn't play this DV DL test file properly: https://drive.google.com/file/d/1NK71Ck ... XLXEa/view

On my C9 it looked fine and played fine. Seems like LG did remove the ability to play dual layer dolby vision file from the CX (and probably upcoming oled tvs as well). That sucks.
As of the recent update CX can play P7 Dual Layer mp4s. But MEL only.
The 07.06 file you linked to is Dual Track, not Dual Layer.
To throw in a little detail to the mix. CX can play Dual Track DV MP4 files, but the file has to have been made using mp4muxer v1.0.0. The latest version of mp4muxer, v1.0.1, does something with file that it isn't played by the tv anymore. I checked the code changes, and it may be the change where they introduce the Alternate Group flag. With v1.0.1 this is set to 1 for both the BL and the EL+RPU tracks, previously this was 0. The BL track is also set as the "default". It may be that this is either wrong for DV files from a MP4 spec point of view, or, the TV has a bug requiring the group to be 0. It is still required to be MEL.
Erm yes I think I had things the wrong way around. Unfortunately my hard drive broke yesterday so I can't check all my test files. Just ignore me!
RESET_9999
Posts: 473
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

lexyz wrote:
Sat Jan 23, 2021 7:23 am
Can you please recheck Shield TV on MIF bath fight scene with capture card?
https://screenshotcomparison.com/comparison/6913

Is it me or there is some noticable improvement with 8.2.2 update?
Can't spot red blocking while playing mkv via plex.
DV triggered

Maybe I just missed this very frame.

Meanwhile Dr Sleep still has noticable red push
Waiting for @Manixx2020beyound but as far I can tell, it's not fixed nor improved: https://screenshotcomparison.com/comparison/10385

As for MI, I didn't compare it with my x700 but I still can see the red spot.
It can be hard to see in motion, but if you pause at a couple of places, you can see it.
Image
Please forgive my English.
Sony x700 ----> Denon AVR ----> LG OLED C8
FIX the x700 DT-DL TS bug with this file
shawnc22
Posts: 602
Joined: Tue Jan 21, 2020 7:40 am

Re: Dolby Vision now possible through MP4 Mux.

Post by shawnc22 »

AndreasT wrote:
Sat Jan 23, 2021 12:39 pm
To throw in a little detail to the mix. CX can play Dual Track DV MP4 files, but the file has to have been made using mp4muxer v1.0.0. The latest version of mp4muxer, v1.0.1, does something with file that it isn't played by the tv anymore. I checked the code changes, and it may be the change where they introduce the Alternate Group flag. With v1.0.1 this is set to 1 for both the BL and the EL+RPU tracks, previously this was 0. The BL track is also set as the "default". It may be that this is either wrong for DV files from a MP4 spec point of view, or, the TV has a bug requiring the group to be 0. It is still required to be MEL.
The issue with the mp4muxer version also exists, btw, with the previous generation of LG oleds. You either have to use v1.0.0 or make changes yourself to v1.0.1. No restrictions on MEL or FEL, however. Really does seem like LG might’ve taken out the second decoder.
mattmarsden
Posts: 68
Joined: Mon Sep 03, 2018 10:36 am

Re: Dolby Vision now possible through MP4 Mux.

Post by mattmarsden »

Could someone point me to the tools I need to make a BL+RPU (not BL+EL+RPU) from a FEL UHD file? I think I need the resultant file in profile 8.1. Thanks!
Ride_UL
Posts: 6
Joined: Thu Jan 21, 2021 10:19 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by Ride_UL »

mattmarsden wrote:
Sat Jan 23, 2021 6:25 pm
Could someone point me to the tools I need to make a BL+RPU (not BL+EL+RPU) from a FEL UHD file? I think I need the resultant file in profile 8.1. Thanks!
Check this out
https://www.makemkv.com/forum/viewtopic ... 970#p96282
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