Official Dolby Vision MKV spec support

Please post here for issues related to UHD discs
MartyMcNuts
Posts: 1247
Joined: Wed Nov 22, 2017 11:45 pm

Re: Official Dolby Vision MKV spec support

Post by MartyMcNuts »

DylanValenti wrote:
Thu Mar 04, 2021 1:58 am
I have a profile 5 dolby vision .mp4 file, how do I mux it into an .mkv file? I would just really like to be able to label all of my audio and subtitle tracks. Any help would be much appreciated as I couldn't find any methods that worked after many days of searching now.
Try mkvtoolnix.
Cheers :D
----------------------------------------------------------------------------------------------------------------------------------------
For UHD capable drives (AU/NZ) / DIY Single Drive Flasher (Worldwide): https://www.uhdenableddrives.com
DylanValenti
Posts: 5
Joined: Sat Dec 19, 2020 9:42 pm

Re: Official Dolby Vision MKV spec support

Post by DylanValenti »

Tried :/ . Doesn’t work, give me an audio only file. Any other suggestions?
Legenista
Posts: 39
Joined: Tue May 09, 2017 12:50 am

Re: Official Dolby Vision MKV spec support

Post by Legenista »

Dual layer DV files (those with a primary 4K HEVC and a secondary 1080p HEVC DV stream in them)... I mean MKVs extracted from UHD discs...

If we use MAKEMKV to convert the movies from such discs into MKV, should we keep the 1080p 2nd alternate video track there?

I mean, here?

Image

Apparently MAKEMKV started to allow this since December 2020.

I was wondering if it makes sense to keep this (see picture above), because at least in my PC using MPC-HC the image is totally green if I select this 1080p track.

So where would this from the MKV be useful?

For the record, my hardware is still old, so PowerDVD for example can't play UHD discs when these are decrypted to my folder.

Since I wasn't aware of what Dolby Vision is I thought MAKEMKV creating two video tracks was some sort of mistake. When and where is this 2nd 1080p track being used?
MartyMcNuts
Posts: 1247
Joined: Wed Nov 22, 2017 11:45 pm

Re: Official Dolby Vision MKV spec support

Post by MartyMcNuts »

Legenista wrote:
Thu Apr 15, 2021 11:24 pm
Dual layer DV files (those with a primary 4K HEVC and a secondary 1080p HEVC DV stream in them)... I mean MKVs extracted from UHD discs...

If we use MAKEMKV to convert the movies from such discs into MKV, should we keep the 1080p 2nd alternate video track there?

I mean, here?

Image

Apparently MAKEMKV started to allow this since December 2020.

I was wondering if it makes sense to keep this (see picture above), because at least in my PC using MPC-HC the image is totally green if I select this 1080p track.

So where would this from the MKV be useful?

For the record, my hardware is still old, so PowerDVD for example can't play UHD discs when these are decrypted to my folder.

Since I wasn't aware of what Dolby Vision is I thought MAKEMKV creating two video tracks was some sort of mistake. When and where is this 2nd 1080p track being used?
That second track (1080p) is the DV layer. You don't select it to watch. A DV player will use this file to apply DV data to the movie (base layer) frame by frame.
Cheers :D
----------------------------------------------------------------------------------------------------------------------------------------
For UHD capable drives (AU/NZ) / DIY Single Drive Flasher (Worldwide): https://www.uhdenableddrives.com
Legenista
Posts: 39
Joined: Tue May 09, 2017 12:50 am

Re: Official Dolby Vision MKV spec support

Post by Legenista »

MartyMcNuts wrote:
Fri Apr 16, 2021 1:34 am
That second track (1080p) is the DV layer. You don't select it to watch. A DV player will use this file to apply DV data to the movie (base layer) frame by frame.
I get that, but all I want to know is if I should keep this into my MKV (the 1080p 2nd track/layer).

If I remove this, then I am not using Dolby Vision, only HDR, is that correct?

I am asking you this because I want to keep everything from my disc, in MKV format. As a backup. So I don't want to lose anything when converting to MKV.

And a final question: assuming that keeping this layer will give me a MKV with the Dolby Vision capabilities, then what kind of player (for PC, iOS, or even a new equipment) would be able to read that? I mean, tap into this feature and display with the DOLBY VISION?

Apparently support for these MKVs is scarce these days, it has not been fully implemented.

If that's the case then I need at least to know if using a PC I can watch that way. Oddly when using MPC-BE (for PC) it doesn't say there are 2 tracks here:

Image

That option is greyed out. So can I assume MPC-BE is already recognizing?

Because that's how the old MPC-HC reads the same MKV:

Image
Legenista
Posts: 39
Joined: Tue May 09, 2017 12:50 am

Re: Official Dolby Vision MKV spec support

Post by Legenista »

The user Asmodian answered this:

https://forum.doom9.org/showthread.php? ... ost1940884

*******
I don't know of anything that can utilize that 2nd 1080p video track as part of decoding to Dolby Vision on PC. We can only get fallback HDR10 for now, but maybe one day.
*******

One question: since when MKVs with this 2nd layer/1080p have become available?

Because I saw a MKV dated from 2018 with this. It can't be the case, if (I assume) this has only been implemented in 2020 by MAKEMKV. So this date can't be from the file, instead it's from something else, such as the release date from this specific UHD disc.
dcoke22
Posts: 488
Joined: Wed Jul 22, 2020 11:25 pm

Re: Official Dolby Vision MKV spec support

Post by dcoke22 »

https://www.makemkv.com/download/history.html

1.15.3 (October, 2020) is when DV support 'officially' landed in MakeMKV.
Post Reply