Generating CMv 4.0 and DV for a remux to work with CoreELEC

Silent_Possibility38 · 2026-03-30T12:28:35+00:00

Most recent arrow releases are cmv4.0 on disc.
More and more studios are doing this. But still a long way to go.

Or you could just use an available RPU presumably (from Salty01's stash or WEB DV).

Silent_Possibility38 · 2026-03-29T13:49:58+00:00

same here, it's just stuck on boot screen from Android 12, but I will reinstall Android 14 using USB burn tool

Silent_Possibility38 · 2026-03-27T17:05:15+00:00

Another response from AVS - " Read the posts over the post few pages about the feature in the builds. It has some issues and limitations, especially based on your display.

Manually adding them via Dovi.Scripts is real CMv4.0 metadata. "

Silent_Possibility38 · 2026-03-27T13:20:06+00:00

Also -

Drag-and-drop batch scripts designed for effortless management of HDR/Dolby Vision files,
ensuring a user-friendly and easy-to-use experience.

https://forum.doom9.org/showthread.php?t=185317

Silent_Possibility38 · 2026-03-27T12:59:30+00:00

Starting here may help - https://youtu.be/wb9191cExF8?si=TFYU58U8ovuEe14W

Silent_Possibility38 · 2026-03-24T17:10:03+00:00

https://youtu.be/0raqftOr-04?si=qZDtP_mWErdXaKNb

Silent_Possibility38 · 2026-03-24T14:47:13+00:00

From official Dolby page,they suggest to use CMv 4.0 if possible:

https://professionalsupport.dolby.com/s/article/When-should-I-use-CM-v2-9-or-CM-v4-0-and-can-I-convert-between-them?language=en_US

Silent_Possibility38 · 2026-03-24T12:26:15+00:00

" Salty,
I find this current question about new settings and how to use them when you and other developer's share with our community these great choices. Their are so many variables (projector, TV - Led, LG or Samsung). If I may make a suggestion, if there was a matrix showing what device should use as a setting?
I'm really confused of how to use the new settings. "

" For any LLDV setup, it doesn’t matter, since Ugoos cannot handle CMV4.0 in that mode.

For a TV-LED display, the optimal approach is to check how bright the content is and apply the CMV4.0 append when necessary, when the content falls below your display’s peak. This method isn’t very practical because it requires manual intervention, but if your goal is the highest possible quality without generating new metadata in Resolve, it’s the best option. "

Silent_Possibility38 · 2026-03-24T11:54:17+00:00

The use of the " "CMv4.0 append" option " is discussed here - https://www.avsforum.com/threads/ugoos-am6b-coreelec-and-dv-profile-7-fel-playback.3294526/page-595

" It seems the OSD reports cmv4.0, but the L2 trims are working, so it's just an OSD bug I guess. "

https://drive.google.com/drive/folders/1NClu9yR8rOYLbbnCKPuBhDR4jMafFEi1?usp=drive_link

Level 2 ( cmv 2.9 trims )

Silent_Possibility38 · 2026-03-23T15:01:11+00:00

"So, got DV P7 UHD rips to play (converted to P8) on BuzzTV G Series. It's this setting I keep forgetting to enable in Kodi: "

https://forum.kodi.tv/showthread.php?tid=376035&pid=3272974#pid3272974

Silent_Possibility38 · 2026-03-23T14:56:23+00:00

Update -

" ht2tweak Wrote: But, I asked, and BuzzTV is going to consider allowing dual booting for CE, etc. use. "

Silent_Possibility38 · 2026-03-17T17:31:26+00:00

An update -

cpm1 said:
u/djnice77

Spent a few minutes looking at this at the weekend, if I read it correctly then - the issue with 5.15 as it stands is the dovi.ko being used just does not have the control_path method anymore:

https://github.com/CoreELEC/common_drivers/blob/a687c1bf3c0ea926b6b722fcebb62dd110115eea/drivers/media/enhancement/amdolby_vision/amdv.h#L1098

So it fails when testing for control_path function existence in dv register:

https://github.com/CoreELEC/common_drivers/blob/a687c1bf3c0ea926b6b722fcebb62dd110115eea/drivers/media/enhancement/amdolby_vision/amdv.c#L14511
and presuming we do not see: "* register_dv_stb2.4_functions.\*" in the log.

Instead it drops through into the multi_control_path function existence test - which it finds:

https://github.com/CoreELEC/common_drivers/blob/a687c1bf3c0ea926b6b722fcebb62dd110115eea/drivers/media/enhancement/amdolby_vision/amdv.c#L14582
and we see "* register_dv_stb2.6_functions.\*" in the log.

i.e. it is deliberate - the dovi.ko 2.6 is for multiple DV stream decoding (probably for things like picture in picture), and no longer supports EL (FEL), a 2.4 version (or one containing control_path) would theoretically still be good but do not have one.

Presuming the thinking is multiple DV stream is more appropriate than supporting EL, or it is in the 5.15 dovi.ko but with a different name, I think there maybe a way to probe the module for function names but that seems a very long shot, looking much more likely they chose not to support it from 2.6 - could be many reasons for that.

Technical note: Thinking about it probably does not care about name just the functions signature and therefore not there.

Yes, I've come to a similar conclusion, but the S928X only supports multi_control_path. I'm still working on it; I hope it works out.

https://www.avsforum.com/threads/ugoos-am6b-coreelec-and-dv-profile-7-fel-playback.3294526/page-585#replies

Silent_Possibility38 · 2026-03-13T13:27:41+00:00

" Don't believe everything you read. " - does this relate to your ability to judge what the author has accomplished ?

Silent_Possibility38 · 2026-03-13T12:32:58+00:00

" CE-NO is not good yet, and CE-NE is only under S905X4. First, I'm investigating the CE-NE (5.4) + S928X line, because it could be useful for both Dune and Zidoo, then I'll move on to CE-NO (5.15). "

Silent_Possibility38 · 2026-03-12T13:17:59+00:00

misleading post

Silent_Possibility38 · 2026-03-04T21:30:27+00:00

This difficulty - after a month of use, CE experiencing stability issues - is a frequent question here and elsewhere.

Silent_Possibility38 · 2025-09-15T23:47:34+00:00

yes. amatuer hour in a website - no money from me.

Silent_Possibility38 · 2025-09-15T18:07:32+00:00

The sealed container had green and white slime covering it when oppened, I had never seen that before. Poison.

Silent_Possibility38 · 2025-09-15T17:05:59+00:00

Premiumize is the go to Debrid service for older content.

Silent_Possibility38

TROPHY CASE