Dolby Vision now possible through MP4 Mux.

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quietvoid
Posts: 373
Joined: Sun Apr 19, 2020 4:15 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by quietvoid »

RESET_9999 wrote:
Wed Jun 08, 2022 11:01 am
all works except L8 (L3 not sure) on internal C8 and x800m2. So does it mean my setup doesnt support cmv4.0?
Yes that's what it means. It doesn't really matter since the content is rare currently, but it's backwards compatible anyways.

RESET_9999 wrote:
Wed Jun 08, 2022 11:01 am
Quite surprised to see the C2 doesnt as well? and no L2??? what the hell?
The C2 supports CMv4.x, it just detects the DM v2 RPU and uses L8 instead of L2.
For actual content it's fine, since L8 is supposed to be present all the time for CM v4.x if there are trims.
You can think of L8 as the equivalent (but better, more flexible) to L2 trims.

So DMv1 (old version, 99.9% of content) still works fine on the C2.
RESET_9999
Posts: 2082
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

quietvoid wrote:
Wed Jun 08, 2022 11:19 am
It doesn't really matter since the content is rare currently, but it's backwards compatible anyways.
right. I checked all my DV content RPU recently and only a few were cmv4.0 (about 10 titles) and one has a lot more L8(IIRC) metadata than the other. I'll try to find it again.
quietvoid wrote:
Wed Jun 08, 2022 11:19 am
The C2 supports CMv4.x, it just detects the DM v2 RPU and uses L8 instead of L2.
For actual content it's fine, since L8 is supposed to be present all the time for CM v4.x if there are trims.
You can think of L8 as the equivalent (but better, more flexible) to L2 trims.
Ha , now I understand. thanks.
Since the firestick 4k max is very recent, I guess there's no hdmi device that supports cmv4.0 yet.
ArArdin
Posts: 194
Joined: Fri Nov 20, 2020 1:40 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by ArArdin »

evilmatcher wrote:
Mon Jun 06, 2022 8:15 pm
I rip the disc from Makemkv v 1.16.7. Should the backup be decrypted?
That depends on whether you check/uncheck the "Decrypt video files" box before back-up.
NiCE77
Posts: 86
Joined: Sat Mar 28, 2020 7:49 am

Re: Dolby Vision now possible through MP4 Mux.

Post by NiCE77 »

quietvoid wrote:
Wed Jun 08, 2022 1:51 am
NiCE77 wrote:
Tue Jun 07, 2022 6:15 am
Maybe the new test file is ready?
Many thanks!
You can try the files here: https://mega.nz/file/xNcAVQhJ#ldoifbK6D ... dXkzw2HYgs

On a DM v1 (CM v2.9) supporting display/device: p81_cmv29_tests, p84_cmv29_tests.
On a DM v2 (CM v4.x) supporting display/device: p81_cmv40_tests, p84_cmv40_tests

LG C2:
- CM v2.9: L1, L2 works
- CM v4.x: L1 works, L2 alone doesn't work. L3 works, L8 works up to clip_trim, the rest makes no difference.

FireTV Stick 4K Max:
- CM v2.9: L1, L2 works
- CM v4.x: L1, L2 works, L3 and L8 don't.

CM v4.x L8 trims are also very different to L2.

There's a bug with the first 3s for HLG since I forgot to add the reshaping.
Many thanks, I've tested, but none of the trims work with Apple TV 4K 2021. I checked both in native and LLDV mode.
I checked it with more players and TVs, and the results are here: https://1drv.ms/x/s!Al2LkV-NKhf6dFuBUJl ... A?e=Kcgdf7
Last edited by NiCE77 on Tue Jun 14, 2022 7:09 am, edited 1 time in total.
RESET_9999
Posts: 2082
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

NiCE77 wrote:
Wed Jun 08, 2022 6:44 pm
Many thanks, I've tested, but none of the trims work with Apple TV 4K 2021. I checked both in native and LLDV mode.
I checked it with more players and TVs, and the results are here: https://onedrive.live.com/view.aspx?res ... Vgr1mbxiSQ
So the appleTV really only supports P5 dynamic metadata...

Do you still have the GTV Chromecast ? is L2 working in LLDV?
You're the second person to say the Shield has no L2 response in LLDV.
NiCE77
Posts: 86
Joined: Sat Mar 28, 2020 7:49 am

Re: Dolby Vision now possible through MP4 Mux.

Post by NiCE77 »

RESET_9999 wrote:
Wed Jun 08, 2022 6:53 pm
NiCE77 wrote:
Wed Jun 08, 2022 6:44 pm
Many thanks, I've tested, but none of the trims work with Apple TV 4K 2021. I checked both in native and LLDV mode.
I checked it with more players and TVs, and the results are here: https://onedrive.live.com/view.aspx?res ... Vgr1mbxiSQ
So the appleTV really only supports P5 dynamic metadata...

Do you still have the GTV Chromecast ? is L2 working in LLDV?
You're the second person to say the Shield has no L2 response in LLDV.
Unfortunately I don't have one, but I'm going to test an Ugoos this weekend, I think it will work similarly because of the Amlogic SoC.
quietvoid
Posts: 373
Joined: Sun Apr 19, 2020 4:15 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by quietvoid »

There's some good info in there. I'm surprised the Shield supports it.
RESET_9999
Posts: 2082
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

must be an LLDV thing because nothing on my Shield for L8 in tv-led DV.
quietvoid
Posts: 373
Joined: Sun Apr 19, 2020 4:15 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by quietvoid »

Well your TV doesn't support it either, so it makes sense.
RESET_9999
Posts: 2082
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

ha yes, because in LLDV the player does the tonemapping. I didnt think of that. Will test again once i get my C2 soonish
deadchip12
Posts: 285
Joined: Thu May 02, 2019 2:49 am

Re: Dolby Vision now possible through MP4 Mux.

Post by deadchip12 »

Do you think this is a good solution to share the external hard drive that contains movie files between the x700 and the pc?

https://www.amazon.com/UGREEN-Selector- ... B01MXXQKGM

Press one button to switch to pc, copy and paste the bmdv folder to root, press the button to switch back to x700, watch the movie. Save the time from the constant unplugging/replugging when you want to change movies.
RESET_9999
Posts: 2082
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 »

sounds like a good idea. let us know if it works.
BadSector81
Posts: 10
Joined: Fri Jul 30, 2021 9:08 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by BadSector81 »

Hi all! Please help me. I'd like to edit L5 for frames between 0-2117 and 2590-4428. Can I make it with one JASON or I should use two? One for 0-2117 and one for 2590-4428? Thanks!
Gatorman
Posts: 79
Joined: Thu Feb 10, 2022 3:47 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by Gatorman »

BadSector81 wrote:
Thu Jun 09, 2022 4:26 pm
Hi all! Please help me. I'd like to edit L5 for frames between 0-2117 and 2590-4428. Can I make it with one JASON or I should use two? One for 0-2117 and one for 2590-4428? Thanks!
I assume all the frames within each group will have the same edits. i.e. 0-2117 0,0,0,0 and 2590-4428 0,0,280,280. If so, yes one .json should work.
More reasons to collect physical media. 2019 Shield TV Pro.
deadchip12
Posts: 285
Joined: Thu May 02, 2019 2:49 am

Re: Dolby Vision now possible through MP4 Mux.

Post by deadchip12 »

RESET_9999 wrote:
Thu Jun 09, 2022 3:51 pm
sounds like a good idea. let us know if it works.
One thing I'm worried is that connecting through the switch may cut down on the usb 2.0 speed and affect the bitrate of the movie. Is there a way to tell if a movie is not playing at maximum bitrate?
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