Dolby Vision now possible through MP4 Mux.

[quietvoid]

Could anybody confirm or deny this statement?

My 2018 4K stick hasn't been updated in years but it never could play FEL, blank screen.
The 2021 4K Max behaves the same, with latest firmware.

[johnjon94]

I would love to test a 64 bit build! I'm not sure if its because the Shield isn't compatible with this version, but when I install the Plex addon I just get an endless loading bar with the Plex logo

I've made new builds available here: https://github.com/quietvoid/xbmc/releases/tag/v21-dovi
There are both 32 bits and 64 bits APKs.

The only change from the last build is that the new build also fixes grey letterbox bars when playing cropped Dolby Vision videos for FireTV.

Info thread: https://forum.kodi.tv/showthread.php?tid=371557

Thanks! You said that you don't use Plex for Kodi - what do you generally use to playback Dolby Vision files on Kodi?

[Facakente]

Hi there , I have installed one of nightly master last builds on my firestick 4k and now I get DV when playing a mkv file .

Though when checking color standard output in dev mode in the firestick 4k , i get bt2020_10_hdr10 , when in Disney or Netflix app I get bt2020_10_dovi , which was what I would expect to see also in kodi when playing mkv.

Codec states Dolby vision and my tv gets the flag for DV , however color output in the firestick dev mode looks wrong .

Any thoughts ?

[quietvoid]

Thanks! You said that you don't use Plex for Kodi - what do you generally use to playback Dolby Vision files on Kodi?

I use PlexKodiConnect or a NFS server.

[plex_p8_dovi]

I have installed your latest build on my firestick 4k max and the .ts files p5, p8 and p7 do not work anymore.
When I try to open any of them Kodi closes. Still works with mkv.
Before this update everything worked perfectly.

Thanks, I also get the crash for .ts.
I'll look into it later.

I found the issue, it seems I can't convert the RPU from .ts for now.
The arm-v7a release was updated, I'll do the other later.
It should fix the crash but .ts profile 7 won't be converted.

Hello,

Your kodi build makes me think about a plex plugin that would convert, on the fly, dvhe.07.06 BL+EL+RPU mkv remuxes to p8 ts.

Would it be technically possible ?
If it is the case, it would be a great solution for lg [c8 -> c2] oled tvs.

for lg c8 / c9, dual layer p7 mp4 remuxes are the best solution, in particular for FEL titles.
I'm ok to make those when there is effectively EL content but for RPU only titles, on the fly plex conversion would be very handy.

set PLEX=download/install plex server and get the transcoder from the installation folder (you can uninstall it once you got the files)

in the TOOLS_READ_ME.txt (Dolby-Vision-Scripts @RESET_9999)
doesn't imply the plex plugin I suggest, right ?

[ragico]

Yes working again but not P7 as you said.
Curious because before, everything was working perfectly, including P7 as I said a few posts before.

I doubt it was actually converting, maybe you were just playing MEL files.

Sorry no. All my P7.ts are from Dovi Fel on purpose. None is from a Mel. And I can assure you that they worked and played perfectly. Unfortunately I did not keep that version.

[quietvoid]

Sorry no. All my P7.ts are from Dovi Fel on purpose. None is from a Mel. And I can assure you that they worked and played perfectly. Unfortunately I did not keep that version.

I don't know but it doesn't add up. I tested a version from the day before and it's also crashing with my test files.
You're welcome to try it: https://mega.nz/file/pZln1IhT#QlMIyPOhW ... 6LidHO1Xqg
This one is the old org.xbmc.kodiDV package.

I don't have the 2023-01-23 build anymore.

Anyways, I have to rework the code so that it works for all files.
This is just temporary.

[dwalme]

What is the best way to convert .TS files containing Profile 8 Dolby Vision (converted from Profile 7 MEL) to MKV?

I thought I'd just use MKVToolNix and batch up a bunch of them, but the resulting MKVs only show HDR10 with mediainfo.

If it use tsMuxeR to demux the .TS file first and then use MKVToolNix the resulting MKV files preserve Dolby Vision.

Is this the fastest way to go from a .TS container to an MKV container?

[ragico]

Sorry no. All my P7.ts are from Dovi Fel on purpose. None is from a Mel. And I can assure you that they worked and played perfectly. Unfortunately I did not keep that version.

I don't know but it doesn't add up. I tested a version from the day before and it's also crashing with my test files.
You're welcome to try it: https://mega.nz/file/pZln1IhT#QlMIyPOhW ... 6LidHO1Xqg
This one is the old org.xbmc.kodiDV package.

I don't have the 2023-01-23 build anymore.

Anyways, I have to rework the code so that it works for all files.
This is just temporary.

Tried and it crashes as you said.
Will wait for the code reworked version.
Thanks a lot.

[quietvoid]

What is the best way to convert .TS files containing Profile 8 Dolby Vision (converted from Profile 7 MEL) to MKV?

I thought I'd just use MKVToolNix and batch up a bunch of them, but the resulting MKVs only show HDR10 with mediainfo.

If it use tsMuxeR to demux the .TS file first and then use MKVToolNix the resulting MKV files preserve Dolby Vision.

Is this the fastest way to go from a .TS container to an MKV container?

MKVToolNix only supports muxing the Dolby Vision config for MP4/MKV (copied from source) and ES (raw bitstream) which is parsed to create the config.
.TS is not supported, you could always make a feature request at the GitLab.

Alternatively, you can try FFmpeg as well.

[dwalme]

MKVToolNix only supports muxing the Dolby Vision config for MP4/MKV (copied from source) and ES (raw bitstream) which is parsed to create the config.
.TS is not supported, you could always make a feature request at the GitLab.

Alternatively, you can try FFmpeg as well.

FFmpeg did the trick. Thank you.

EDIT: Spoke too soon. MediaInfo reports the correct information, but the files only play in HDR.

[DylanValenti]

Forgive me if this is a dumb question but what does MDL mismatch mean? Is there a way of fixing it? I noticed a lot of the incompatible web-dls on your spreadsheet cite “MDL mismatch”, but a lot of the compatible ones do as well @RESET_9999

[RESET_9999]

Forgive me if this is a dumb question but what does MDL mismatch mean? Is there a way of fixing it? I noticed a lot of the incompatible web-dls on your spreadsheet cite “MDL mismatch”, but a lot of the compatible ones do as well @RESET_9999

MDL = mastering display luminance, in other words, this is the monitor brightness they used to grade the movie.

Some are in the "green" section because of the L1 plot comparison that clearly show that they are the same brightness. Why is there MDL mismatch? I dont know but studios are probably stupid, i doubt they did exactly the same grade on two different monitors so one value must be an error. Same goes for Bt2020 vs P3 of the MD, sometimes the same movie have different value depending on the streaming services but they are exactly the same grade.

But the thing is that MDL is defined in L6 metadata which has no effect on the image in DV but its also defined in the "source max PQ" which has a direct impact on the brightness in DV, see:
https://www.youtube.com/watch?v=sl_wopsmdmc
https://www.youtube.com/watch?v=56y0svpsTMw

so three options:
1- be 100% safe and never mux web and bd that have a MDL mismatch
2- if L1 plot is close enough, edit "source max pq" to what makes more sense(by looking at the grade brightness) and hope it's accurate.
3- if L1 plot is close enough, leave "source max pq" untouched and hope it's accurate.

I use option 2 FYI.

There are also some MA web-dl that have the first two frames MDL 1000nits but all the other frames have MDL 4000nits (Puss in boots 2 / Tar)

[powdeau]

So what's your latest opinion on L1 in real world content on the x700/x800m2. I can see the issues on the test patterns but want to know how much it really affects actual films.I personally have a 5.1.4 atmos setup so dont really wanna sacrifice audio and use the internal player on my cx but if T1 issues are truly causing perceptible issues with DV then maybe the trade off is worthwhile. Are you still personally exclusively using your c8/c2 over the x800m2? Thanks.

since most movies have l2 trim passes, not much difference. The problem seem to be with L1 high max_pq values that have no effect.

What if the movie has only 100 nits or only 600 nits trim pass, would that be a problem?

[RESET_9999]

What if the movie has only 100 nits or only 600 nits trim pass, would that be a problem?

100nits = AFAIK it's not used in DV playback but it is used with Windows 10 Movies&TV app when tone mapped to SDR. So when the movies only has 100nits trim, its the same has no trims for DV playback.
600nits= definitely has an effect on my C2, in fact, all the trims work together at the same time. I used to think that only one trim was selected but it's not the case at all.
pattern to see what I'm talking about:
https://drive.google.com/file/d/1wgph-I ... share_link