Dolby Vision now possible through MP4 Mux.

Please post here for issues related to UHD discs
Ibuprofen
Posts: 2
Joined: Tue Sep 27, 2022 3:00 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by Ibuprofen »

For MEL discs I have been using this to discard the EL layer and create a base RPU for mp4 encoding.

Code: Select all

dovi_tool -m 2 convert --discard video.hevc 
This thread says that FEL discs need an additional step to remove_mapping that strips out the additional EL processing.
https://github.com/quietvoid/dovi_tool/discussions/168

Can anyone confirm this is needed on FEL discs?

Code: Select all

fel_to_p81.json 
{
"mode": 2,
"remove_mapping": true
}

dovi_tool --edit-config fel_to_p81.json mux --bl bl.hevc --el el.hevc --discard 
I ran both approaches (discard vs remove_mapping) on a FEL disc and the json metadata was quite different.
RESET_9999
Posts: 1183
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

legosoff wrote:
Tue Sep 27, 2022 8:26 am
bluray disc folder yes. 7-4-2 or 7-4-3 excellent. no problem.
But one mkv problem dvhe.08.06, BL+RPU, Blu-ray compatible / SMPTE ST 2086, HDR10 7-4-4 after that, the green screen again. How do I fix it on profile 7? Thank you.
mapping removal is only for Profile 7 input. When input is P8, my script assumes that the mapping was already removed.
I'll check if i can add support for p8 that still have the mapping
Please forgive my English.
Sony x800m2 ----> Denon AVR ----> LG OLED C2 77"
Dolby Vision Stuff
RESET_9999
Posts: 1183
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

Ibuprofen wrote:
Tue Sep 27, 2022 3:12 pm

Can anyone confirm this is needed on FEL discs?
.
yes thats correct and you should always remove the mapping for FEL to p8
Please forgive my English.
Sony x800m2 ----> Denon AVR ----> LG OLED C2 77"
Dolby Vision Stuff
legosoff
Posts: 27
Joined: Sun Sep 25, 2022 1:43 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by legosoff »

RESET_9999 wrote:
Tue Sep 27, 2022 3:45 pm
legosoff wrote:
Tue Sep 27, 2022 8:26 am
bluray disc folder yes. 7-4-2 or 7-4-3 excellent. no problem.
But one mkv problem dvhe.08.06, BL+RPU, Blu-ray compatible / SMPTE ST 2086, HDR10 7-4-4 after that, the green screen again. How do I fix it on profile 7? Thank you.
mapping removal is only for Profile 7 input. When input is P8, my script assumes that the mapping was already removed.
I'll check if i can add support for p8 that still have the mapping
I get you, you're right. These films of his were ready on 08.06, BL + RU, apparently there is a problem, and the other films that are there are working fine. It's most dvh.08.06, BL+RU someone did it wrong. I decide to download the Blu-ray disc, solely trusting myself.
sw5163
Posts: 116
Joined: Sat Jun 25, 2022 7:28 am

Re: Dolby Vision now possible through MP4 Mux.

Post by sw5163 »

legosoff wrote:
Tue Sep 27, 2022 4:04 pm
It's most dvh.08.06, BL+RU someone did it wrong. I decide to download the Blu-ray disc, solely trusting myself.
You can just manually remove those additional mapping in that p8 file, saves the redownloading time.
Sometimes I find it difficult to remux Blu-ray disc when there is a single video stream that consists of multiple m2ts files.
So I actually prefer FEL remux version.
Ibuprofen wrote:
Tue Sep 27, 2022 3:12 pm
This thread says that FEL discs need an additional step to remove_mapping that strips out the additional EL processing.
https://github.com/quietvoid/dovi_tool/discussions/168
Only the first part and remove_mapping of that post is useful, the rest part regarding MMR and polynomial mapping discussion is just me being stupid, please ignore. But I would like to express my thanks to @quietvoid and @RESET_9999 and you all, really teach me a lot. :)
RESET_9999
Posts: 1183
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

legosoff wrote:
Tue Sep 27, 2022 4:04 pm
I decide to download the Blu-ray disc, solely trusting myself.
You could manually fix it as @sw5163 said but starting from the original untouched disc is always the best workflow.
sw5163 wrote:
Tue Sep 27, 2022 5:19 pm
Sometimes I find it difficult to remux Blu-ray disc when there is a single video stream that consists of multiple m2ts files.
So I actually prefer FEL remux version.
Well, that's a bad idea because most of the remux from seamless branching discs on torrent are done incorrectly with makemkv or mkvtoolnix.
The only way to properly remux seamless disc is with DGdemux or Tsmuxer.

btw in my script, you won't even know when the disc is seamless branching, the whole process is automated regardless of the disc.
Please forgive my English.
Sony x800m2 ----> Denon AVR ----> LG OLED C2 77"
Dolby Vision Stuff
sw5163
Posts: 116
Joined: Sat Jun 25, 2022 7:28 am

Re: Dolby Vision now possible through MP4 Mux.

Post by sw5163 »

RESET_9999 wrote:
Tue Sep 27, 2022 5:56 pm
Well, that's a bad idea because most of the remux from seamless branching discs on torrent are done incorrectly with makemkv or mkvtoolnix.
The only way to properly remux seamless disc is with DGdemux or Tsmuxer.

btw in my script, you won't even know when the disc is seamless branching, the whole process is automated regardless of the disc.
Interesting, will look into that, thanks!
dcoke22
Posts: 1382
Joined: Wed Jul 22, 2020 11:25 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by dcoke22 »

RESET_9999 wrote:
Tue Sep 27, 2022 5:56 pm
Well, that's a bad idea because most of the remux from seamless branching discs on torrent are done incorrectly with makemkv or mkvtoolnix.
The only way to properly remux seamless disc is with DGdemux or Tsmuxer.
What do you mean by that? Are you suggesting that the way MakeMKV mashes segments together is wrong in some way?
RESET_9999
Posts: 1183
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

dcoke22 wrote:
Tue Sep 27, 2022 6:31 pm
What do you mean by that? Are you suggesting that the way MakeMKV mashes segments together is wrong in some way?
yes unless makemkv was updated, It doesnt remove the gap in the lossless audio track which can cause some playback problems.
Please forgive my English.
Sony x800m2 ----> Denon AVR ----> LG OLED C2 77"
Dolby Vision Stuff
legosoff
Posts: 27
Joined: Sun Sep 25, 2022 1:43 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by legosoff »

RESET_9999 wrote:
Tue Sep 27, 2022 5:56 pm
legosoff wrote:
Tue Sep 27, 2022 4:04 pm
I decide to download the Blu-ray disc, solely trusting myself.
You could manually fix it as @sw5163 said but starting from the original untouched disc is always the best workflow.
Yes, it has already been done, 7 profile is being executed after 7/4/4, the green screen is still again.
RESET_9999
Posts: 1183
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

legosoff wrote:
Tue Sep 27, 2022 7:23 pm
Yes, it has already been done, 7 profile is being executed after 7/4/4, the green screen is still again.
then the problem is something else... what movie is it?
also at this point, a sample would be useful
Last edited by RESET_9999 on Tue Sep 27, 2022 9:35 pm, edited 1 time in total.
Please forgive my English.
Sony x800m2 ----> Denon AVR ----> LG OLED C2 77"
Dolby Vision Stuff
sw5163
Posts: 116
Joined: Sat Jun 25, 2022 7:28 am

Re: Dolby Vision now possible through MP4 Mux.

Post by sw5163 »

legosoff wrote:
Tue Sep 27, 2022 7:23 pm
the green screen is still again.
Strange, is it only showing green screen on Apple or is it green on all DV capable device?
Ibuprofen
Posts: 2
Joined: Tue Sep 27, 2022 3:00 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by Ibuprofen »

Thank you both for confirming this is needed for all FEL discs. Time to reprocess again.
RESET_9999 wrote:
Tue Sep 27, 2022 3:46 pm
Ibuprofen wrote:
Tue Sep 27, 2022 3:12 pm

Can anyone confirm this is needed on FEL discs?
.
yes thats correct and you should always remove the mapping for FEL to p8
sw5163 wrote:
Tue Sep 27, 2022 5:19 pm
legosoff wrote:
Tue Sep 27, 2022 4:04 pm
It's most dvh.08.06, BL+RU someone did it wrong. I decide to download the Blu-ray disc, solely trusting myself.
You can just manually remove those additional mapping in that p8 file, saves the redownloading time.
Sometimes I find it difficult to remux Blu-ray disc when there is a single video stream that consists of multiple m2ts files.
So I actually prefer FEL remux version.
Ibuprofen wrote:
Tue Sep 27, 2022 3:12 pm
This thread says that FEL discs need an additional step to remove_mapping that strips out the additional EL processing.
https://github.com/quietvoid/dovi_tool/discussions/168
Only the first part and remove_mapping of that post is useful, the rest part regarding MMR and polynomial mapping discussion is just me being stupid, please ignore. But I would like to express my thanks to @quietvoid and @RESET_9999 and you all, really teach me a lot. :)
legosoff
Posts: 27
Joined: Sun Sep 25, 2022 1:43 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by legosoff »

RESET_9999 wrote:
Tue Sep 27, 2022 7:54 pm
legosoff wrote:
Tue Sep 27, 2022 7:23 pm
Yes, it has already been done, 7 profile is being executed after 7/4/4, the green screen is still again.
then the problem is something else... what movie is it?
also at this point, a sample would be useful

Valerian.and.the.City.of.a.Thousand.Planets.2017.2160p.UHD.DV.BDRemux.mkv
Format : Matroska
Format version : Version 4
File size : 72.9 GiB
Duration : 2 h 17 min
Overall bit rate mode : Variable
Overall bit rate : 76.2 Mb/s
Movie name : Valerian and the City of a Thousand Planets (2017)
Encoded date : UTC 2022-09-06 10:28:44
Writing application : mkvmerge v69.0.0 ('Day And Age') 64-bit
Writing library : libebml v1.4.2 + libmatroska v1.6.4
Cover : Yes
Attachments : cover.jpg

Video
ID : 1
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main 10@L5.1@High
HDR format : Dolby Vision, Version 1.0, dvhe.08.06, BL+RPU, HDR10 compatible / SMPTE ST 2086, HDR10 compatible
Codec ID : V_MPEGH/ISO/HEVC
Duration : 2 h 17 min
Bit rate : 44.7 Mb/s
Width : 3 840 pixels
Height : 2 160 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 23.976 (24000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0 (Type 2)
Bit depth : 10 bits
Bits/(Pixel*Frame) : 0.224
Stream size : 42.6 GiB (58%)
Language : English
Default : Yes
Forced : No
Color range : Limited
Color primaries : BT.2020
Transfer characteristics : PQ
Matrix coefficients : BT.2020 non-constant
Mastering display color pri : Display P3
Mastering display luminance : min: 0.0050 cd/m2, max: 1000 cd/m2
Maximum Content Light Level : 632 cd/m2
Maximum Frame-Average Light : 298 cd/m2

Here, it's not mine, someone made it apparently a problem. So it's better for me to have a Blu-ray Disk or remux m2ts sure calmly.
legosoff
Posts: 27
Joined: Sun Sep 25, 2022 1:43 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by legosoff »

sw5163 wrote:
Tue Sep 27, 2022 8:49 pm
legosoff wrote:
Tue Sep 27, 2022 7:23 pm
the green screen is still again.
Strange, is it only showing green screen on Apple or is it green on all DV capable device?
No, my LG 1C DV works fine, and Apple only has a green screen. Here is a Blu-Ray Disk on 7/4/2 excellent Apple.
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