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Dolby Vision Mux!

Posted: 10 May 2018, 17:54
by Grencola
Hey guys, exciting news!

So as of MrMC 3.3.1 there has been the ability to play single layer DV files, like the LG demo video. See topic here: https://mrmc.tv/2017/12/15/mrmc-3-3-1-a ... ite-3-3-1/

Well it seems VirenRawal has managed to properly mux a dual layer DV movie into a single layer file, and cropped off a small clip for testing and feedback.

Grab it here: https://drive.google.com/open?id=10ytWD ... FpEzIISjaU

Can anyone please try this and confirm if it plays in MrMC? It plays fine directly from TV USB just like the LG Demo file so I imagine it should.

Apparently *BD Demuxer Pro 3D UHD v3.2* can extract the dolby vision and then *Scenarist UHD v1.2.0* will mux double layer into single layer m2ts :)

Yay for progress?

Re: Dolby Vision Mux!

Posted: 10 May 2018, 18:35
by cosmoxl
Colors seemed off playing back in MrMC on iPad Pro.

So, I tried it in mpc-hc with madvr setup to tonemap and it seems it's not detected as DV. Colors are the same as on iPad and madvr is guessing the matrix and color primaries are bt709.

here is a log of the playback on apple tv 4k. https://paste2.org/E1Zdtvxs

Re: Dolby Vision Mux!

Posted: 10 May 2018, 18:50
by davilla
DEBUG: displayModeSwitchInProgress == DONE, refreshRate = 23.98, dynamicRange = DolbyVision

DolbyVision was detected. So it has the correct signature.

Re: Dolby Vision Mux!

Posted: 10 May 2018, 18:58
by cosmoxl
davilla wrote:
10 May 2018, 18:50
DEBUG: displayModeSwitchInProgress == DONE, refreshRate = 23.98, dynamicRange = DolbyVision

DolbyVision was detected. So it has the correct signature.
@Davilla, I noticed with this file codec info on ATV4k says "DOVI" but with the screensaver rip that's DV it says "dvh1". Any significance to that?

Also, it doesn't seem to trigger the same as other HDR material. All other HDR material plays back as super contrasty mess since I don't have an HDR TV and apple removed the tonemapping feature. But, this plays back with more or less normal colors.

Re: Dolby Vision Mux!

Posted: 10 May 2018, 20:20
by davilla
Has to wait until I can snatch it an examine. Too big to grab over hotspot.

Re: Dolby Vision Mux!

Posted: 10 May 2018, 21:35
by wesk05
It has Dolby Vision profile 5. There is no BL backward compatibility for this profile. The color space is Dolby Vision native ICtCp.

The guy doing this on makeMKV forum is likely jeopardizing his licenses! (He could very well be an employee working in one of the studios).

Re: Dolby Vision Mux!

Posted: 10 May 2018, 22:07
by davilla
Still looking for this -> Dolby Vision Video Elementary Stream multiplexing specification
(dovi_proenc_ves_muxing_spec.pdf), located in the documentation package

Someone should tell VirenRawal :) hint, hint

Re: Dolby Vision Mux!

Posted: 10 May 2018, 23:12
by Grencola
Yea, apparently the quality is a bit poor because of trying to keep the size down, and could be throwing colors off, but it's just to see if TV's actually get their DV tripped or not. Soo, it's good to go? Like if an entire UHD BD Rip was done with this method would it would be like playing a disc? Or must a different profile be chosen?

Re: Dolby Vision Mux!

Posted: 10 May 2018, 23:19
by Grencola
davilla wrote:
10 May 2018, 18:50
DEBUG: displayModeSwitchInProgress == DONE, refreshRate = 23.98, dynamicRange = DolbyVision

DolbyVision was detected. So it has the correct signature.
And it's passing it through to your tv? So your TV actually says Dolby Vision too?

Re: Dolby Vision Mux!

Posted: 11 May 2018, 00:13
by cosmoxl
Grencola wrote:
10 May 2018, 23:19
davilla wrote:
10 May 2018, 18:50
DEBUG: displayModeSwitchInProgress == DONE, refreshRate = 23.98, dynamicRange = DolbyVision

DolbyVision was detected. So it has the correct signature.
And it's passing it through to your tv? So your TV actually says Dolby Vision too?
That's from my log and I do not have an HDR TV. You'll have to wait for other input.