Dolby Vision now possible through MP4 Mux.

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1000010
Posts: 19
Joined: Sun Nov 03, 2019 12:18 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by 1000010 » Sun Nov 03, 2019 12:30 pm

yusesope wrote:
Sun Nov 03, 2019 10:24 am
Correct . We must inform the developers (Plex, MrMC, etc.) about the existence of this possibility and they will implement the correct decoding (as did the developers of LAV Filters).
so Plex is ffmpeg based? this would mean it will eventually make it's way to the app anyway. I haven't found any open issue tracker, maybe we should gang up and start posting and sending emails?

I've also tried your method of creating a single layer DV with Atmos->lpcm sound, but I lost the central channel somewhere in the process and I can't hear voices anymore. trying it out on Last Jedi bluray and testing the mp4 file out in VLC, media info says: Codec: PCM S24 BE (in24), Channels: 3F2M2R/LFE. any ideas on what might have gone wrong?

bgalakazam
Posts: 25
Joined: Wed May 01, 2019 6:15 pm
Location: Italy

Re: Dolby Vision now possible through MP4 Mux.

Post by bgalakazam » Sun Nov 03, 2019 2:22 pm

This is good news, I suppose. DV titles are growing and nowadays a lot of movies come with Atmos. I am reluctant to give up lossless audio & Atmos for DV. I can settle for DD+ & Atmos, but that doesn't look like is happening anytime soon for ripped UHDs. That just leaves the .mp4 container DV with TrueHD Atmos open. Once there is a fully working example of UHD rip playing with DV and THD Atmos I'll buy said streaming box. For now still my trusty X700 for lossless audio.

edit: there is also the Oppo Chinese clone for $400 which plays back BD ISO, but I am not trying to spend that much.

1000010
Posts: 19
Joined: Sun Nov 03, 2019 12:18 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by 1000010 » Sun Nov 03, 2019 2:26 pm

yusesope I tried your method of converting into a single layer DV mp4 and got it working, but it results in a ~200ms delay of audio stream, which is really annoying. I converted Atmos/TrueHD stream to non-apple lpcm. is there any way of preventing this delay? or at least finding out the exact offset for every conversions, so delay can be automatically fixed with ffmpeg?

I'm also looking into alternatives for creating a single-layer DV stream out of dual-layer DV stream. is there anything available on unix, preferably open-source? otherwise I'm going to start looking at the specs/reverse engineering and tackle the thing myself. since I'm new to this, can somebody point me into good direction regarding documentation?

Fieldy
Posts: 2
Joined: Sun Nov 03, 2019 2:33 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by Fieldy » Sun Nov 03, 2019 2:41 pm

yusesope wrote:
Sun Nov 03, 2019 10:24 am
Correct . We must inform the developers (Plex, MrMC, etc.) about the existence of this possibility and they will implement the correct decoding (as did the developers of LAV Filters).
... hey. I only registered to be informed about this very interesting topic.
However, unfortunately it seems that nobody of the Plex developers is interested in this issue.
I just opened a feature request topic...

https://forums.plex.tv/t/dual-layer-dol ... ort/485093

No reactions :(

Sorry for bad English and regards from Germany

yusesope
Posts: 164
Joined: Sun Jul 28, 2019 3:34 am

Re: Dolby Vision now possible through MP4 Mux.

Post by yusesope » Sun Nov 03, 2019 5:54 pm

bgalakazam wrote:
Sun Nov 03, 2019 2:22 pm
I can settle for DD+ & Atmos, but that doesn't look like is happening anytime soon for ripped UHDs. That just leaves the .mp4 container DV with TrueHD Atmos open
You can enjoy Dolby Vision and audio without loss of quality on your x700 just because every day enthusiasts make small discoveries.
MP4 + ATMOS (playable, for now, only on PC) is another small step forward.

Speaking of steps forward,
@FusionNeo I ask you the courtesy to test THIS FILE (without audio) on your new Shield PRO + PLEX beta.
I wonder if the Shield is able to play the dvhe.04.06 Dolby Vision profile.
Thanks.

SamuriHL
Posts: 1618
Joined: Mon Jun 14, 2010 5:32 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by SamuriHL » Sun Nov 03, 2019 6:51 pm

I've not been able to test anything in Plex on the shield because for some stupid reason I can't get the beta to push to it. They said it could take "some time" but ummmm. LOL I'm sure it'll show up eventually. You know, when they push it out of beta. LMAO UGH

FusionNeo
Posts: 21
Joined: Sat Nov 02, 2019 1:15 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by FusionNeo » Sun Nov 03, 2019 9:04 pm

yusesope wrote:
Sun Nov 03, 2019 5:54 pm
@FusionNeo I ask you the courtesy to test THIS FILE (without audio) on your new Shield PRO + PLEX beta.
I wonder if the Shield is able to play the dvhe.04.06 Dolby Vision profile.
Thanks.
I will test it sometime this evening when I get home. Let me know if you need assistance with testing anything else, of course.
SamuriHL wrote:
Sun Nov 03, 2019 6:51 pm
I've not been able to test anything in Plex on the shield because for some stupid reason I can't get the beta to push to it. They said it could take "some time" but ummmm. LOL I'm sure it'll show up eventually. You know, when they push it out of beta. LMAO UGH
Are you a Plex Pass subscriber? If you are, you can sideload the beta located here and then you’ll have access to the new beta. I just enrolled yesterday, so as long as you’re a Plex Pass subscriber the beta APK will work.

SamuriHL
Posts: 1618
Joined: Mon Jun 14, 2010 5:32 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by SamuriHL » Sun Nov 03, 2019 10:51 pm

Yes, I'm a lifetime plex pass owner, but, I'm not dealing with sideloading apk's on the shield right now. I'm not worried. There are bugs they need to fix anyway so I can wait.

FusionNeo
Posts: 21
Joined: Sat Nov 02, 2019 1:15 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by FusionNeo » Mon Nov 04, 2019 4:38 am

@yusesope, just to give you an update, the file plays back but only in HDR. It seems the Dolby Vision support for the Shield is only profile 5 like the other streamers out on the market.

ragico
Posts: 142
Joined: Fri Feb 15, 2019 1:09 am

Re: Dolby Vision now possible through MP4 Mux.

Post by ragico » Mon Nov 04, 2019 2:58 pm

FusionNeo wrote:
Mon Nov 04, 2019 4:38 am
@yusesope, just to give you an update, the file plays back but only in HDR. It seems the Dolby Vision support for the Shield is only profile 5 like the other streamers out on the market.
I also tried the file on Amazon Firestick 4K (which supports DV single layer profile 5 through emby) and it plays in HDR.
Just to let @yusesope to know about.

yusesope
Posts: 164
Joined: Sun Jul 28, 2019 3:34 am

Re: Dolby Vision now possible through MP4 Mux.

Post by yusesope » Mon Nov 04, 2019 3:14 pm

Who wants ATMOS + MP4 on Android? :lol: :lol: :lol:

I created a custom codec for MX Player (based on the work of USBhost from XDA).
My Android tablet (Huawei Mediapad M3) is now able to correctly reproduce the TrueHD/ATMOS track inside the MP4 file.

To confirm what I said in my previous posts, the implementation is purely software.

HERE you will find the codec
To use it: Settings -> Decoder -> Scroll to the last entry "Custom Codec" -> Select my zip file and the app will restart

I'm sorry if I don't answer to the other questions that have been asked to me but today I'm going a little in a hurry. I apologize.
I thank @FusionNeo and @ragico for testing the dvhe.04.06 file.

Image
Last edited by yusesope on Tue Nov 12, 2019 11:18 am, edited 1 time in total.

RESET_9999
Posts: 235
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 » Mon Nov 04, 2019 5:31 pm

this is great...many thanks!!! I will receive my new Shield this week(was hard to find one in Canada).
I cant wait to test everything. Now i just hope that the single layer remux done with DVDFAB are the real deal.
Last edited by RESET_9999 on Tue Nov 05, 2019 12:04 am, edited 1 time in total.
Please forgive my weak English.
Sony x700 ----> Denon AVR ----> LG OLED C8

fede66
Posts: 6
Joined: Wed Oct 30, 2019 9:38 am

Re: Dolby Vision now possible through MP4 Mux.

Post by fede66 » Mon Nov 04, 2019 10:30 pm

Hi I wanted to know if with dvd fab you can clone entirely a blu ray 4k, for example aquaman.
is the first bluray that I tried to clone but setting the entire disc makes me a folder of about 82gb while the original blu ray is 90gb and setting only film makes me a folder of 66gb.
The film comes out well and is read without problems from the opto 203 even with dolby atmos, while dolby vision does not go.
Is there a way to clone the disc even with dolby vision?
thanks

Woodstock
Posts: 7487
Joined: Sun Jul 24, 2011 11:21 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by Woodstock » Mon Nov 04, 2019 11:01 pm

Hi I wanted to know if with dvd fab you can clone entirely a blu ray 4k, for example aquaman.
This is not the DVDFab support forum.
How to aid in finding the answer to your problem: https://www.makemkv.com/faq/item/8

fede66
Posts: 6
Joined: Wed Oct 30, 2019 9:38 am

Re: Dolby Vision now possible through MP4 Mux.

Post by fede66 » Tue Nov 05, 2019 8:54 am

Thank you very much, it seems to me that many people in this forum use it, so surely they know how to use it or not?

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