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Re: Dolby Vision now possible through MP4 Mux.
Posted: Fri Sep 13, 2024 4:31 pm
by morbius
that would explain why my conversion of Thor looks a touch dark, according to MediaInfo the MDL is 4000. For some titles MediaInfo reports values of MaxCLL but based on a first check, with Batman Begins, the value is nowhere near correct. So presumably should ignore MediaInfo fir this key parameter?
Re: Dolby Vision now possible through MP4 Mux.
Posted: Fri Sep 13, 2024 4:41 pm
by RESET_9999
yes I always ignore mediainfo metadata.
Re: Dolby Vision now possible through MP4 Mux.
Posted: Fri Sep 13, 2024 10:33 pm
by jayper
When creating hybrids, what is the recommendation with respect to editing L6 or not?
I primarily watch my hybrids in Dolby Vision, but in some cases I am limited to HDR10. What should I so, update L6 or not?
Thanks!
Re: Dolby Vision now possible through MP4 Mux.
Posted: Sat Sep 14, 2024 12:02 am
by RESET_9999
there might be some devices that use L6 when they decode DV as HDR10 but otherwise, it's pretty much useless.
Re: Dolby Vision now possible through MP4 Mux.
Posted: Sun Sep 15, 2024 1:21 am
by jayper
RESET_9999 wrote: Sat Sep 14, 2024 12:02 am
there might be some devices that use L6 when they decode DV as HDR10 but otherwise, it's pretty much useless.
Thanks very much!
Re: Dolby Vision now possible through MP4 Mux.
Posted: Sun Sep 15, 2024 4:54 pm
by jayper
RESET_9999 wrote: Sat Sep 14, 2024 12:02 am
there might be some devices that use L6 when they decode DV as HDR10 but otherwise, it's pretty much useless.
Sorry, follow-up question. If you're watching DV content, with updated L6, on an HDR10-only device. Does it even matter? Or is it only something that a DV device can use? And if you are on a DV-capable device, and playing back in DR10, is it better to update the L6 or not? Sorry... I clearly need to do more reading on L6.
Appreciate the guidance!
Re: Dolby Vision now possible through MP4 Mux.
Posted: Mon Sep 16, 2024 12:49 am
by RESET_9999
If you're watching DV content, with updated L6, on an HDR10-only device. Does it even matter?
if the device sends the static L6 metadata to the TV, yes. For example, on the ugoos, unless you specify an HDR10 string in the menu, it sends LLDV in HDR10 without static metadata which is not ideal. Preferably, you want to send a maxcll or MDL value that matches your EDID target so the TV can use the best static tone mapping curve for the image brightness it receives.
However, it also depends on whether your TV uses MDL or maxcll for HDR10.
Re: Dolby Vision now possible through MP4 Mux.
Posted: Mon Sep 16, 2024 8:50 pm
by staknhalo
Here's a DV profile 4? (SDR HEVC BL?) file I came across from someone linking on Plex forums:
https://mega.nz/file/QGRwQQQB#_3ErgcM5Y ... UTE8eau8Tc
Re: Dolby Vision now possible through MP4 Mux.
Posted: Fri Sep 20, 2024 12:33 am
by DylanValenti
Trying to export FEL screenshots without an nvidia gpu but it's not working. It says that it exports the screenshots but the folder doesn't have any in it. I downloaded the latest tool pack and ffms2 is in it, so any idea what's going on here?
Re: Dolby Vision now possible through MP4 Mux.
Posted: Fri Sep 20, 2024 2:42 am
by RESET_9999
Re: Dolby Vision now possible through MP4 Mux.
Posted: Fri Sep 20, 2024 6:12 am
by DylanValenti
Yep. Just reinstalled to verify. Still no screenshots
Re: Dolby Vision now possible through MP4 Mux.
Posted: Fri Sep 20, 2024 11:04 am
by RESET_9999
idk , works fine for me. Try in manual mode, go into the temp folder and try to play the .avs script in avspmod, it will tell you the error.
Re: Dolby Vision now possible through MP4 Mux.
Posted: Fri Sep 20, 2024 4:11 pm
by DylanValenti
It says "Cannot load file 'Z:/01DoVi/tools/avs_libplacebo.dll'. Platform returned code 126: The specified module could not be found. (Z:\01DoVi\temp.folder25\9_FEL.avs, line 2)"
I checked my tools folder and avs_libplacebo.dll is indeed in the root. Any suggestions?
Re: Dolby Vision now possible through MP4 Mux.
Posted: Fri Sep 20, 2024 4:45 pm
by RESET_9999
no idea, works fine for me but i just noticed that there is an issue with the HDR10 Base layer SDR tone-mapped screenshots in that workflow which is unrelated to your issue and is now fixed in latest beta. Anyway, I dont see the point in comparing HDR images in SDR(this is not lossless). The script outputs proper HDR metadata for the HDR screenshots which can be viewed in HDR (or mapped to SDR) on Chrome/Edge/Opera browser. EG:
https://slow.pics/c/bTBjYZuB Also, ffms2 for my screenshots workflow (7-1) is quite slow so not really usable IMO. When you encode in 8-2-1, it's fine.

Re: Dolby Vision now possible through MP4 Mux.
Posted: Fri Sep 20, 2024 5:52 pm
by staknhalo
I'm removing this, MEGA started throttling my account ever since I posted it lol - I can't download my 8K movie trailers that get posted to MEGA because of 'account usage'
Edit: It's from here - the 'LG' one IIRC -
https://www.demolandia.net/4k-video-tes ... age-2.html