Dolby Vision now possible through MP4 Mux.

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quietvoid
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Re: Dolby Vision now possible through MP4 Mux.

Post by quietvoid »

RESET_9999 wrote:
Wed Mar 08, 2023 3:06 am
yes it is how it works... Each trims are edited manually after the analysis to make sure the desired look is preserved.
Dolby vision is not just an algorithm.
I'm only clarifying your statement that the trim passes are done two times (L8 + L2), because it's not true.

If you even did a little research, you would've found that L2 is always autogenerated.
So the trim passes are what creates the L8, not the L2. At least in a CM v4.0 workflow.

For CM v2.9, of course the trims are done once and they result in the L2.
RESET_9999 wrote:
Wed Mar 08, 2023 3:06 am
As I told you in PM, take the spears and munsil, generate cmv4.0 metadata and compare on cmv2.9 and 4.0 devices. I'm sure you will agree.
That's not at all the same situation. It would only be comparing different algorithms.
RESET_9999
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Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

quietvoid wrote:
Wed Mar 08, 2023 3:17 am
If you even did a little research, you would've found that L2 is always autogenerated.
LOL I know very well that the dv analysis generates L2/L8 automatically, I literally asked you by pm how to overwrite them in my script because they have a too strong effect....
My point is that the trims are edited manually after the analysis. They are NOT just the result of an algorithm.
I'm only clarifying your statement that the trim passes are done two times (L8 + L2), because it's not true.
The metadata in L2 and L8 works quite differently as you know, so i disagree with you here.
If they do L2 and L8 trims they must go through each of them but then we learned that the studios can be very lazy so who knows how much work they really put in the trims.
That's not at all the same situation. It would only be comparing different algorithms.
huh? please do some tests and then come at me again :)
Sorry for my English.
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dom61
Posts: 49
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Re: Dolby Vision now possible through MP4 Mux.

Post by dom61 »

RESET_9999 wrote:
Tue Mar 07, 2023 11:06 pm
dom61 wrote:
Tue Mar 07, 2023 11:03 pm
Thank you for the confirmation
I went ahead in the procedure and when I am processing the file "DV.xml", it is prompted to enter a value of enter a value of CANVAS_WIDTH
mediainfo is used to read and set the input resolution. So your path to mediainfo might not be right??
I solved it by downloading the correct version

After processing a movie with DaVinci, I performed the export of Dolby Vision metadata (DV.xml), following the tutorial on Youtube as reference.
I ask if it is possible to inject only Dolby Vision metadata (DV.xml)
to get Mediainfo similar to this.
Thank you very much

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RESET_9999
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Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

dom61 wrote:
Wed Mar 08, 2023 6:54 am
After processing a movie with DaVinci, I performed the export of Dolby Vision metadata (DV.xml), following the tutorial on Youtube as reference.
I ask if it is possible to inject only Dolby Vision metadata (DV.xml)
to get Mediainfo similar to this.
Thank you very much

No, you can only create single layer files. In order to create a P7 dual-layer file, you must have/create an enhancement layer (EL) which is currently not possible.
It might be possible to make a blank EL in the future though but i believe the BL has to be encoded a certain way also.
Sorry for my English.
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dom61
Posts: 49
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Re: Dolby Vision now possible through MP4 Mux.

Post by dom61 »

RESET_9999 wrote:
Wed Mar 08, 2023 11:59 am
No, you can only create single layer files. In order to create a P7 dual-layer file, you must have/create an enhancement layer (EL) which is currently not possible.
It might be possible to make a blank EL in the future though but i believe the BL has to be encoded a certain way also.
I finally managed to import DV metadata, ask for confirmation if the procedure is correct.
I performed the procedure only for Dolby Vision, launched DoVi_Scripts 1>1 Drag & Drop MKV file and DV.xml file

Image


And only the ".hevc" file is generated. , then I enter the file in MKVToolNix to create the mkv file which has these characteristics.
The "RPU.bin" file is not generated as in the videotutorial

Image

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RESET_9999
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Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

dom61 wrote:
Wed Mar 08, 2023 4:04 pm

And only the ".hevc" file is generated. , then I enter the file in MKVToolNix to create the mkv file which has these characteristics.
The "RPU.bin" file is not generated as in the videotutorial
yes by default no rpu is exported.. you must edit line 35 set keep_rpu=NO

Also, you must have turned off the muxing(line 21) because the script is supposed to mux to MKV.

Image
Sorry for my English.
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dom61
Posts: 49
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Re: Dolby Vision now possible through MP4 Mux.

Post by dom61 »

RESET_9999 wrote:
Wed Mar 08, 2023 4:48 pm
yes by default no rpu is exported.. you must edit line 35 set keep_rpu=NO

Also, you must have turned off the muxing(line 21) because the script is supposed to mux to MKV.
OK line 39 has been changed, but line 21 is active.

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sultanmehmet
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Re: Dolby Vision now possible through MP4 Mux.

Post by sultanmehmet »

RESET_9999 wrote:
Tue Mar 07, 2023 2:22 am
sultanmehmet wrote:
Tue Mar 07, 2023 1:42 am
Can somebody confirm if I can just copy the 'raw' m2ts file to my HDD?
No, you'll get "fake" DV if you do that. You must remux to TS/M2TS or BDMV with the nightly tsmuxer.

It sounds like you're using the very old tsmuxer. I use this version (had issues with the latest ones)...
https://github.com/justdan96/tsMuxer/re ... 2-02-15-09
Thanks man, that did the trick! I don't know how I didn't download that version as I thought I just went on google a couple of days ago and downloaded the lastest one. But it worked and I got my x700 in the mail today and tested it out. It played in hdr10 at first but I noticed that DV was turned off in the settings, so after I turned it on it worked like a charm! Its funny how even though this x700 feels like a cheap piece of plastic it plays back DV so effortlessly.
caelar900
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Joined: Mon Jan 23, 2023 11:44 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by caelar900 »

Finally got the script working and started converting most of my duplicate p5 files to p8 only to realize about 60 odd films in that p8 has the red push issue on shield -_- Looks like Apple TV with infuse doesn't work quite right either from some of the test patterns I was looking at. Oh well guess I'll be sticking with P5 for plex files and x800 for all my p7's.
Draco1544
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Joined: Sun Dec 18, 2022 12:32 am

Re: Dolby Vision now possible through MP4 Mux.

Post by Draco1544 »

@RESET_9999 Hi, where I can fine the DoVi_mp4_DVH1.exe required by your script for mp4 workflow ?
RESET_9999
Posts: 2406
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Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

Draco1544 wrote:
Fri Mar 10, 2023 9:01 pm
@RESET_9999 Hi, where I can fine the DoVi_mp4_DVH1.exe required by your script for mp4 workflow ?
here: https://github.com/rixtox/mp4dovi/releases/tag/v0.1.1
sorry, I should stop renaming the tools I'm using...

this is only needed when you use 7-1-1 and input a Profile 5 video. Some movies anywhere profile 5 web-dl produce corrupted video in mp4box.

BTW, latest beta can make MP4 with 7.1 EC3 audio. It can also now mux up to 40 subtitles and 10 audio.
caelar900 wrote:
Wed Mar 08, 2023 9:35 pm
Looks like Apple TV with infuse doesn't work quite right either from some of the test patterns I was looking at. Oh well guess I'll be sticking with P5 for plex files and x800 for all my p7's.
ATV Infuse should work as long as your P8/P5 mp4 file is HEV1 / DVH1.
Sorry for my English.
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LV8HD
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Re: Dolby Vision now possible through MP4 Mux.

Post by LV8HD »

Hi y'all, this doesn't necessary fit in the "Dolby Vision world", but I think it's quite interesting and inherent to this forum.

let's say I have 2 sources for the same movie -> 1st source US UHD Blu-ray
2nd source ITA UHD Blu-ray

The US UHD Blu-ray video is better than ITA, but US UHD has some hardsubs scenes that I don't like, while ITA UHD doesn't have any. What I would like to do in this case would be to extract the specific frames (corresponding to the one on the US
UHD containing hardsubs) from the ITA UHD and replace part of the US video with these non-hardsubbed scenes.
But before doing that I'd have to let's say "change" the ITA UHD frames HDR metadata to fit the US UHD ones.

How is it possible to do all of that? the first tools that come to my mind are of course MadVR and ffmpeg but I don't practically know how use them for this. Is there anybody who has any idea?

EDIT: forgot to mention I absolutely don't want to re-encode the video in any way.
jorgen
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Re: Dolby Vision now possible through MP4 Mux.

Post by jorgen »

Is it possible to convert a UHD movie to mkv using makemkv and then reversing the process using TSMuxer to create a new BDMV without losing any Dolby Vision information? (I understand that Bluray menues will be removed etc., but I'm interested in knowing if a ripped mkv with DV is future proof and can be converted back to BDMV lossless). Thanks!
quietvoid
Posts: 377
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Re: Dolby Vision now possible through MP4 Mux.

Post by quietvoid »

jorgen wrote:
Sat Mar 11, 2023 3:55 pm
Is it possible to convert a UHD movie to mkv using makemkv and then reversing the process using TSMuxer to create a new BDMV without losing any Dolby Vision information? (I understand that Bluray menues will be removed etc., but I'm interested in knowing if a ripped mkv with DV is future proof and can be converted back to BDMV lossless). Thanks!
There's a bug in MakeMKV when ripping from TSMuxer BDMV: viewtopic.php?f=12&t=23962&p=122050&hil ... er#p122050
So unless that is fixed, you would have a hard time ripping again.

It's probably better to archive the original disc backup instead.
jorgen
Posts: 3
Joined: Fri Feb 10, 2023 3:19 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by jorgen »

quietvoid wrote:
Sun Mar 12, 2023 3:46 pm
There's a bug in MakeMKV when ripping from TSMuxer BDMV: viewtopic.php?f=12&t=23962&p=122050&hil ... er#p122050
So unless that is fixed, you would have a hard time ripping again.

It's probably better to archive the original disc backup instead.
I'm not interested in converting from back from BDMV with TSMuxer to mkv.

The process I'm interested in is this:
- Rip retail UHD disc to mkv and store on NAS
- Keep mkv file on NAS
- Create temporary BDMV structure with TSMuxer from mkv to watch movie on Oppo player (with best DV support)
- Delete BDMV files

Question is if keeping a mkv backup is future proof. The bug I understand is converting the other way, from BDMV structure with TSMuxer to mkv again?

Thanks in advance.
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