Dolby Vision on S912?

General
1

It’s now possible to create Dolby Vision .mp4 files. (https://www.makemkv.com/forum/viewtopic.php?t=18602)

Général
Nom complet                              : Z:\Transformers\Transformers 1 [ac3][4k][hdr]\DV-Movie.mp4
Format                                   : MPEG-4
Profil du format                         : Base Media / Version 2
Identifiant du codec                     : mp42 (mp42/dby1/isom)
Taille du fichier                        : 69,8 Gio
Durée                                    : 2 h 23 min
Débit global moyen                       : 69,6 Mb/s
Date d'encodage                          : UTC 2019-03-29 18:09:38
Date de marquage                         : UTC 2019-03-29 18:09:38

Vidéo #1
ID                                       : 1
Format                                   : HEVC
Format/Info                              : High Efficiency Video Coding
Nom commercial                           : HDR10
Profil du format                         : Main 10@L5.1@High
Identifiant du codec                     : hev1
Identifiant du codec/Info                : High Efficiency Video Coding
Durée                                    : 2 h 23 min
Débit                                    : 61,8 Mb/s
Largeur                                  : 3 840 pixels
Hauteur                                  : 2 160 pixels
Format à l'écran                         : 16/9
Type d'images/s                          : Constant
Images par seconde                       : 23,976 (24000/1001) Im/s
Espace de couleurs                       : YUV
Sous-échantillonnage de la chrominance   : 4:2:0 (Type 2)
Profondeur des couleurs                  : 10 bits
Bits/(Pixel*Image)                       : 0.311
Taille du flux                           : 62,0 Gio (89%)
Default                                  : Non
Date d'encodage                          : UTC 2019-03-29 18:09:38
Date de marquage                         : UTC 2019-03-29 18:09:38
Gamme de couleurs                        : Limited
Coordonnées de chromaticité              : BT.2020
Caractéristiques du transfert            : PQ
Coefficients de la matrice               : BT.2020 non-constant
MasteringDisplay_ColorPrimaries          : Display P3
MasteringDisplay_Luminance               : min: 0.0001 cd/m2, max: 1000 cd/m2
Codec configuration box                  : hvcC

Vidéo #2
ID                                       : 2
Format                                   : HEVC
Format/Info                              : High Efficiency Video Coding
Nom commercial                           : HDR10
Profil du format                         : Main 10@L5.1@High
Dolby Vision                             : 1.0, dvhe.07.06, EL+RPU
Identifiant du codec                     : dvhe
Identifiant du codec/Info                : High Efficiency Video Coding with Dolby Vision
Durée                                    : 2 h 23 min
Débit                                    : 7 130 kb/s
Largeur                                  : 1 920 pixels
Hauteur                                  : 1 080 pixels
Format à l'écran                         : 16/9
Type d'images/s                          : Constant
Images par seconde                       : 23,976 (24000/1001) Im/s
Espace de couleurs                       : YUV
Sous-échantillonnage de la chrominance   : 4:2:0 (Type 2)
Profondeur des couleurs                  : 10 bits
Bits/(Pixel*Image)                       : 0.143
Taille du flux                           : 7,14 Gio (10%)
Default                                  : Non
Date d'encodage                          : UTC 2019-03-29 18:09:38
Date de marquage                         : UTC 2019-03-29 18:09:38
Gamme de couleurs                        : Limited
Coordonnées de chromaticité              : BT.2020
Caractéristiques du transfert            : PQ
Coefficients de la matrice               : BT.2020 non-constant
MasteringDisplay_ColorPrimaries          : Display P3
MasteringDisplay_Luminance               : min: 0.0001 cd/m2, max: 1000 cd/m2
Codec configuration box                  : hvcC+dvcC

Audio
ID                                       : 3
Format                                   : AC-3
Format/Info                              : Audio Coding 3
Nom commercial                           : Dolby Digital
Identifiant du codec                     : ac-3
Durée                                    : 2 h 23 min
Type de débit                            : Constant
Débit                                    : 640 kb/s
Canaux                                   : 6 canaux
Channel layout                           : L R C LFE Ls Rs
Echantillonnage                          : 48,0 kHz
Images par seconde                       : 31,250 Im/s (1536 SPF)
Profondeur des couleurs                  : 16 bits
Mode de compression                      : Avec perte
Taille du flux                           : 657 Mio (1%)
Langue                                   : Français
ServiceKind/String                       : Complete Main
Default                                  : Non
Date d'encodage                          : UTC 2019-03-29 18:09:38
Date de marquage                         : UTC 2019-03-29 18:09:38

Do you plan to update CoreElec to read such files?

1 Like
2

This is technically possible with the s922x. If only you could play the DV one day with Kodi. :sunny:

3

Dolby Vision is a proprietary format. There are no plans to “update” CE to play it, because it’s not that simple.
You can always use your TV’s built-in player to play such files.

4

Page 16 or read the rest of it if you need more info.

5

ok, so no plan to update CE because “it’s not that simple” …
With such reasoning why did you make CoreElec? We can all read the files with the tv’s built-in player.

Are you just doing simple things?

6

DV is a proprietary format, “not that simple” is closer to “impossible” without licensing all the tools required to make this even a very remote possibility.

7

Yes, that’s all devs do, simple things. They’re to dumb to do really.interesting things. I’m still pissed because my S912 doesn’t make good expressos! Or bad, if that matters.

1 Like
8

But I’m trying to get Dolby Vision from my Nespresso machine.

1 Like
9

why the problem does not arise in the case of Dolby Atmos?

1 Like
10

Because it works differently. Atmos audio is bitstreamed like other audio formats and then the receiver decodes it.
Dolby Vision requires all devices in the media chain to support it and be certified by Dolby.

4 Likes
11

It’s now possible to have Dolby Vision and lossless audio in ts files. Just yesterday the developer of MakeMKV released a new version that:

“should correctly recognize and preserve Dolby Vision streams in MKV file”

Link: https://www.makemkv.com/forum/viewtopic.php?f=12&t=21937

What are the chances of CoreELEC supporting Dolby Vision ts files in the future?

12

You still lack the hardware support. DV requires J variant of Amlogic SoC (eg. S922X-J), which is only available to makers who paid licensing fee to Dolby Laboratories. Even then it is unknown if it supports dual layer DV used in UHD BD. DV in streaming is single layer only.

13

I think that was initially the case but some TVs have received firmware updates adding Dolby Vision support. I searched for Dolby Vision software solution and found an article from February 2017:

Dolby Develops Dolby Vision Software Solution for Expanded Device Support

According to a report from Forbes, Dolby has developed a new software implementation of its Dolby Vision HDR format. Previously, the technology could only be implemented on devices with special hardware built in, but now Dolby Vision support can be added via a pure software solution on products with enough power to run it.

14

The current solutions create single track profile 5 Dolby vision video that is decodable e.g. by nv shield 2019 SoC (The dual track profile 7 streams from UHD disks can only be played back with DV by some TV decoders and Bluray players).

So given that the S922X-J like on ugoos or new Minix have a DV licensed hardware decoder (at least supporting single track streams), what is the stopping point for Kodi on Linux/Coreelec to utilize that decoder for DV video?

15

What an utterly dickhead thing to say. If its so simple do it yourself.
Show a little gratitude for the hard work done.

Shoog

16

Lack of information and knowledge about DV. All DV document is confidential. Sony is so stupid with this. Also no info from Amlogic.

17

DV does work on s912, but on android. Think mxplayer does support it.