Dolby Vision now possible through MP4 Mux.

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Gatorman
Posts: 78
Joined: Thu Feb 10, 2022 3:47 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by Gatorman »

docnoir wrote:
Fri Nov 11, 2022 11:18 am
can someone share the most updated dovi devices playback spreadsheet? thank you
Just find the latest post from Reset_9999. The link is in his signature.
More reasons to collect physical media. 2019 Shield TV Pro.
mad83
Posts: 7
Joined: Tue Oct 26, 2021 12:35 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by mad83 »

Hi @RESET_9999,

I have DV 4K profile 5 mkv with top and bottom black bars. I would like to compress it with resolution change to 1080p with DV.
What should i do with extracted RPU before and after re-encodes ?
ArArdin
Posts: 187
Joined: Fri Nov 20, 2020 1:40 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by ArArdin »

Interesting post. I have no experience with DV @ 1080p.
I would like to know how downscaling a DV P5 baselayer can be achieved in the first place. Given Dolby proprietary IPTPQc2 color space that's used by P5, I can imagine issues rising.
As an educated guess concerning RPU, if the letterbox bars are kept during re-encode, you'd have to adjust top & bottom L5 values to the actual amount of vertical pixels that the bars occupy in the re-encoded 1080p video.
Should you crop the black bars out before re-encoding, the values have to be set to zero.
Manixx2020beyound
Posts: 127
Joined: Thu Oct 08, 2020 5:19 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by Manixx2020beyound »

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For those using resolve 18.1 update can now decode profile 5 clips on the time line.
https://professionalsupport.dolby.com/s ... ntent_type
L11 metadata specs
sw5163
Posts: 143
Joined: Sat Jun 25, 2022 7:28 am

Re: Dolby Vision now possible through MP4 Mux.

Post by sw5163 »

Hi guys, I read something about the new Apple TV 2022 outputs HDR10+ for DV content streaming on Samsung TV (S95B).
Does anyone know if it converts DV->HDR10+ on the fly or they just provide HDR10+ source?
Test file:
https://drive.google.com/drive/folders/ ... Ps8NfU53Ee
uhdiznotenough4mee
Posts: 14
Joined: Mon Aug 30, 2021 9:34 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by uhdiznotenough4mee »

sw5163 wrote:
Wed Nov 16, 2022 5:03 pm
Hi guys, I read something about the new Apple TV 2022 outputs HDR10+ for DV content streaming on Samsung TV (S95B).
Does anyone know if it converts DV->HDR10+ on the fly or they just provide HDR10+ source?
Test file:
https://drive.google.com/drive/folders/ ... Ps8NfU53Ee
https://www.whathifi.com/news/hdr10-sup ... ple-tv-app
dcoke22
Posts: 2613
Joined: Wed Jul 22, 2020 11:25 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by dcoke22 »

I don't think that What Hifi? article really answers the OP's question. Yes, the 2022 AppleTV 4K supports HDR10+. Will it convert Dolby Vision to HDR10+ on the fly? I think that's unlikely, although I have not read an answer to that question.
uhdiznotenough4mee
Posts: 14
Joined: Mon Aug 30, 2021 9:34 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by uhdiznotenough4mee »

dcoke22 wrote:
Wed Nov 16, 2022 9:01 pm
I don't think that What Hifi? article really answers the OP's question. Yes, the 2022 AppleTV 4K supports HDR10+. Will it convert Dolby Vision to HDR10+ on the fly? I think that's unlikely, although I have not read an answer to that question.
Why would it need to convert anything when you can have both HDR10+ and DoVi in one HEVC streamed file and the right one is chosen for you device accordingly?
Last edited by uhdiznotenough4mee on Wed Nov 16, 2022 11:37 pm, edited 1 time in total.
ArArdin
Posts: 187
Joined: Fri Nov 20, 2020 1:40 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by ArArdin »

uhdiznotenough4mee wrote:
Wed Nov 16, 2022 10:29 pm
Why would it need to convert anything when you can have both HDR10+ and DoVi in one HEVC streamed file and the reight one is chosen for you device accordingly?
Well, as a first and most basal of thoughts, maybe because then you don't have to convert the file yourself?
bobbymkV
Posts: 71
Joined: Fri Jun 19, 2020 4:26 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by bobbymkV »

sw5163 wrote:
Wed Nov 16, 2022 5:03 pm
Hi guys, I read something about the new Apple TV 2022 outputs HDR10+ for DV content streaming on Samsung TV (S95B).
Does anyone know if it converts DV->HDR10+ on the fly or they just provide HDR10+ source?
Test file:
https://drive.google.com/drive/folders/ ... Ps8NfU53Ee
HDR10+ source is the correct answer.

Code: Select all

General
Unique ID                                : 66233975591032682789646524526102530206 (0x31D4331F0EDCB2A1BED79B2B025F489E)
Complete name                            : Circuit.Breakers.S01E07.No.Place.LIke.Home.2160p.ATVP.WEB-DL.DDP5.1.Atmos.HDR10+.H.265-SMURF.mkv
Format                                   : Matroska
Format version                           : Version 4
File size                                : 5.38 GiB
Duration                                 : 31 min 8 s
Overall bit rate                         : 24.7 Mb/s
Writing application                      : mkvmerge v71.1.0 ('Fortitude') 64-bit
Writing library                          : libebml v1.4.4 + libmatroska v1.7.1

Video
ID                                       : 1
Format                                   : HEVC
Format/Info                              : High Efficiency Video Coding
Format profile                           : Main 10@L5@High
HDR format                               : SMPTE ST 2094 App 4, Version 1, HDR10+ Profile B compatible

Code: Select all

General
Unique ID                                : 234858304283524647418137905566376502389 (0xB0B01068409B4803F858B4D8C413A475)
Complete name                            : Circuit.Breakers.S01E01.Test.Subject.13.2160p.ATVP.WEB-DL.DDP5.1.Atmos.HDR.H.265-FLUX.mkv
Format                                   : Matroska
Format version                           : Version 4
File size                                : 4.04 GiB
Duration                                 : 23 min 20 s
Overall bit rate                         : 24.8 Mb/s
Writing application                      : mkvmerge v71.1.0 ('Fortitude') 64-bit
Writing library                          : libebml v1.4.4 + libmatroska v1.7.1

Video
ID                                       : 1
Format                                   : HEVC
Format/Info                              : High Efficiency Video Coding
Format profile                           : Main 10@L5@High
HDR format                               : SMPTE ST 2094 App 4, Version 1, HDR10+ Profile B compatible
sw5163
Posts: 143
Joined: Sat Jun 25, 2022 7:28 am

Re: Dolby Vision now possible through MP4 Mux.

Post by sw5163 »

bobbymkV wrote:
Thu Nov 17, 2022 2:27 pm
HDR10+ source is the correct answer.
Thanks!
legosoff
Posts: 42
Joined: Sun Sep 25, 2022 1:43 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by legosoff »

Hi! Crop RPU which mode? Thank you in advance.
sergonnn111
Posts: 12
Joined: Sun Jul 17, 2022 7:32 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by sergonnn111 »

i want to buy DUNE HD REAL VISION 4K , do i get dolby vision from mkv 7profile dolby vision BL+EL+RPU, is it real dolby vision on dune hd real vision 4k, please guys i need your advice ?
ArArdin
Posts: 187
Joined: Fri Nov 20, 2020 1:40 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by ArArdin »

Yes, you'll get Dolby Vision with P7 mkv. However in case of FEL, this layer is disregarded and only BL and RPU will be processed.
RTD1619DR based players simply lack a second HEVC decoder.
Manixx2020beyound
Posts: 127
Joined: Thu Oct 08, 2020 5:19 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by Manixx2020beyound »

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Resolve 18.1
To import profile 5 dv clips into resolve they must have dvh1 flag not dvhe flag, tested this on windows platform, test file glass blowing original iOS p5 4K 59.974.
Converted on resolve timeline then export to yuv 422 10bit, along with a new dv analysis xml.
U can then encode in staxrip to a new 8.1(almost no quality loss ) or encode a 8.1/8.4 in resolve it self.
U can also down convert to 1080p if that’s your desire.
Resolve also decoded any p5 encoded from resolve, testing some dv demos and p5 real mov which has mostly dvhe
Will not work on window unless u have a dv license
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