Dolby Vision now possible through MP4 Mux.

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dom61
Posts: 46
Joined: Sun Oct 25, 2009 4:54 pm
Location: Italy

Re: Dolby Vision now possible through MP4 Mux.

#9556 Post by dom61 » Tue Jan 16, 2024 7:53 am

Interesting article I found.
"With HDR, the important thing is not brightness."
https://www.dday.it/redazione/48155/i-c ... luminosita

Video demonstrating peak brightness measurement in amateur filming.
https://www.youtube.com/watch?v=PRSm2v7bfVo
Zidoo Z9X | HiMedia Q5 Pro and Q10 Pro | ZDMC 20.1 | Remote WeChip | Splitter HDMI HDFury AVR-KEY | Display LG 65B6V | Audio processor Yamaha RX-V775 | Rotel RMB-1075 | Storage Qnap Ts-431K +TL-D800C
My PC Ryzen 7950X

afarvvik
Posts: 14
Joined: Mon Jan 23, 2023 8:16 pm

Re: Dolby Vision now possible through MP4 Mux.

#9557 Post by afarvvik » Tue Jan 16, 2024 10:18 am

RESET_9999 wrote:
Mon Jan 15, 2024 8:49 pm


solution:
encode DDP at 1024kbps and configure kodi to always select the track with the ''default'' flag. This has been 100% stable on my end (video + audio).


CPU usage seems fine but the memory usage is very high (80% +). I'm not sure if it's normal or fine. I never checked the ram usage using plex.
thanks for the reply.. so it seems it may not be a great alternative to emby as you still have to reencode files? what about if the files already have DDP with bitrate lower than 1024kbps? are they ok or does it have to be exactly that number?

it would be great if you ever got the chance to compare the CPU/RAM usage of kodi vs the other players.

would you know how they are able to process DV MKV files when it is seemingly incompatible with the TV OS?

RESET_9999
Posts: 1964
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

#9558 Post by RESET_9999 » Tue Jan 16, 2024 12:15 pm

DDP with bitrate lower than 1024kbps? are they ok or does it have to be exactly that number?
no, any bitrate under 1024
would you know how they are able to process DV MKV files when it is seemingly incompatible with the TV OS?
I don't know and it doesn't really matter as long as its not fake.
No TV can passthrough TrueHD/DTS-HD from internal app player to receiver/soundbar right?
some can

azreil24
Posts: 45
Joined: Mon Dec 14, 2020 3:28 pm

Re: Dolby Vision now possible through MP4 Mux.

#9559 Post by azreil24 » Tue Jan 16, 2024 6:41 pm

Would transferring the EL from a release to another be possible and if so would it be feasible?

RESET_9999
Posts: 1964
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

#9560 Post by RESET_9999 » Tue Jan 16, 2024 8:16 pm

possible, yes i guess but i would not do that.

azreil24
Posts: 45
Joined: Mon Dec 14, 2020 3:28 pm

Re: Dolby Vision now possible through MP4 Mux.

#9561 Post by azreil24 » Tue Jan 16, 2024 9:32 pm

Asking for the same movie, but different encoding. One has HDR10 only and another has DV, EL+RPU, just that the RPU on it is not proper and though if I'm going to replace the RPU with the one from you, maybe I could have the EL 'transplanted' to another version which also has a better encode of the transfer.

Also, have you ever tested your Z9X for SDR output when you had it? I could swear that even in SDR this thing is not as good as the internal player. I got a Z9X Pro and this thing is buggy as hell, worse than nVidia drivers. The Z9X looks as if transcoded, as it looks the same when the same content is transcoded through Plex, although on the Z9X I'm playing it directly through the built-in player which technically is direct play.

RESET_9999
Posts: 1964
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

#9562 Post by RESET_9999 » Tue Jan 16, 2024 10:39 pm

Well, I think the BL is encoded a specific way when it's meant for FEL DV so I guess it would work but it might cause issues.

Zidoo: SDR and HDR10 were fine when I tested it.

azreil24
Posts: 45
Joined: Mon Dec 14, 2020 3:28 pm

Re: Dolby Vision now possible through MP4 Mux.

#9563 Post by azreil24 » Tue Jan 16, 2024 11:06 pm

I will try it, but first will have to see the RPU syncing steps, as I'm not to clear on that, as the two editions do not perfectly line-up, there is a few hundred milliseconds difference between the 'donor' and the 'patient' :D

RESET_9999
Posts: 1964
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

#9564 Post by RESET_9999 » Tue Jan 16, 2024 11:10 pm

I show how to resync the rpu in my P8 hybrid tutorial video on YouTube.
You can't really resync FEL though.

https://www.youtube.com/watch?v=hVWZpat34oc

afarvvik
Posts: 14
Joined: Mon Jan 23, 2023 8:16 pm

Re: Dolby Vision now possible through MP4 Mux.

#9565 Post by afarvvik » Wed Jan 17, 2024 12:18 am

@RESET_9999

is there a workflow or script which can simply convert a mkv file to mp4 without encoding or demuxing & remuxing etc? I currently use tsmuxer to do that as it converts mkv to m2ts on the fly so I only need about 110% of the original file as free space, whereas if I were to demux it, then convert/encode it and then remux it I would need 3x the free space.

RESET_9999
Posts: 1964
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

#9566 Post by RESET_9999 » Wed Jan 17, 2024 12:27 am

I think ffmpeg can do that but I dont know the command.

afarvvik
Posts: 14
Joined: Mon Jan 23, 2023 8:16 pm

Re: Dolby Vision now possible through MP4 Mux.

#9567 Post by afarvvik » Wed Jan 17, 2024 2:21 am

RESET_9999 wrote:
Wed Jan 17, 2024 12:27 am
I think ffmpeg can do that but I dont know the command.
ok, thank you :)

azreil24
Posts: 45
Joined: Mon Dec 14, 2020 3:28 pm

Re: Dolby Vision now possible through MP4 Mux.

#9568 Post by azreil24 » Wed Jan 17, 2024 6:44 pm

RESET_9999 wrote:
Tue Jan 16, 2024 11:10 pm
I show how to resync the rpu in my P8 hybrid tutorial video on YouTube.
You can't really resync FEL though.

https://www.youtube.com/watch?v=hVWZpat34oc
Yeah, but seems I am not able to fix this one. I have MadVR installed, Lav filters and all.

"Could not retrieve IMeasureHDR interface."

RESET_9999
Posts: 1964
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

#9569 Post by RESET_9999 » Wed Jan 17, 2024 8:05 pm

which movie is it?
Yeah, but seems I am not able to fix this one. I have MadVR installed, Lav filters and all.

"Could not retrieve IMeasureHDR interface."
you're talking about 6-2 madvr measure?
check your lavfilters settings

Image

azreil24
Posts: 45
Joined: Mon Dec 14, 2020 3:28 pm

Re: Dolby Vision now possible through MP4 Mux.

#9570 Post by azreil24 » Wed Jan 17, 2024 8:32 pm

Yep, 6-2, got the same lavfilters settings, same error.

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