Dolby Vision now possible through MP4 Mux.

[RESET_9999]

How I know a movie RPU nits trough your scripts?

Workflow 2-3

[RESET_9999]

Happy New Year.

Just to clarify when I use the DoVi scripts to plot a UHD disc with Profile 7 FEL the graph is using all the Profile 7 FEL layer metadata?

Yes, the values in the plot are for the BL+EL decoded brightness.

[susanstone2022]

Zidoo can save TV edid. Zidoo can set customised edid. If my TV is 2000nits and I set Zidoo edid to 1000nits, would it work?

With a 2000nits TV, you don't need DV for 1000nits movies(and for most of the movies). A 1000nits edid would be a bad idea because then any shot over 1000nits would be tonemapped to 1000nits while your tv is capable of displaying it untouched. HDR content is graded brighter than the MDL sometimes.

Do you mean I should just watch HDR layer instead of DV for the same content? Do I lose anything that DV provides?

I guess what I am trying do is to find a decent external player for P8 cropped content. P8(full frame) can be watched with x800m2. Another way I can think of is to remove cmv4 and use Apple TV. That should give me true TV-led?

[RESET_9999]

Yes, if the content is within your display capabilities, DV doesn't have to tonemap/compress highlights/gamut.
But sometimes they do use the L2 trims to raise the brightness. The latest Mission Impossible flick is a good example.

[azreil24]

@RESET_9999 have you been able to test the color saturation/accuracy on the 23AFTVS4KM?

For DV MKV playback, I've been using my C2 internal player lately. It seems stable and it works very well, at least for the 3 movies I watched so far.
You have to sideload Kodi in developer mode but it's not too complicated to do and its pretty nice to finally have DV MKV support on LG TVs.
https://kodi.wiki/view/HOW-TO:Install_Kodi_for_webOS

Wait wait wait, if I install Kodi through that method, I get DV MKV support on my C2 through the built-in player? Can this tool also be used to enable the limited DTS support? I know there was an option to do so with a command line.

[RESET_9999]

Wait wait wait, if I install Kodi through that method, I get DV MKV support on my C2 through the built-in player?

yep, finally!!

Can this tool also be used to enable the limited DTS support? I know there was an option to do so with a command line.

I'm not sure, I have to test this again but I think DTS and PGS subs are working (probably sent in pcm??)
TrueHD doesn't work and it breaks the app on my end. I have to restart the TV if I want Kodi to work again.

[azreil24]

Wait wait wait, if I install Kodi through that method, I get DV MKV support on my C2 through the built-in player?

yep, finally!!

Can this tool also be used to enable the limited DTS support? I know there was an option to do so with a command line.

I'm not sure, I have to test this again but I think DTS and PGS subs are working (probably sent in pcm??)
TrueHD doesn't work and it breaks the app on my end. I have to restart the TV if I want Kodi to work again.

Does it break TrueHD support or something through this method or is a Kodi thing? As I don't remember having issues with Atmos tracks on my C2 or does it actually drop to the core track although it says it plays the Atmos track?

[RESET_9999]

only on Kodi but I have more tests to do. In my initial test, playing a file with Truehd triggered DV but no sounds and the video froze at some point. Then any other file will freeze too unless you restart the TV.
You cannot even use the exit button in Kodi, it freezes the app(not the TV) but you can use the remote and go back to any other app.

This is using the Plex addon to access my library though, I haven't tried to access my PC directly without plex server, maybe it will behave differently.

[azreil24]

only on Kodi but I have more tests to do. In my initial test, playing a file with Truehd triggered DV but no sounds and the video froze at some point. Then any other file will freeze too unless you restart the TV.
You cannot even use the exit button in Kodi, it freezes the app(not the TV) but you can use the remote and go back to any other app.

This is using the Plex addon to access my library though, I haven't tried to access my PC directly without plex server, maybe it will behave differently.

Got it. Will give it a go later today. Mine is not even rooted yet. Many thanks!

[RESET_9999]

yea, i tried again and DTSHD is working on my end (kodi set to best match). My AVR reports PCM multi-channels and plex EC3.
This is much better than plex where it fallback to HDR10 when input has DTS.

[azreil24]

yea, i tried again and DTSHD is working on my end (kodi set to best match). My AVR reports PCM multi-channels and plex EC3.
This is much better than plex where it fallback to HDR10 when input has DTS.

Is this with the DTS enabling on the C2 mod?

Also, from the screenshot it seems it drops to EAC3, it does not play DTS.

[RESET_9999]

Is this with the DTS enabling on the C2 mod?

whats the C2 mod???
I did not root my TV to enable DTS support if that is what you are referring to.

Also, from the screenshot it seems it drops to EAC3, it does not play DTS.

as I said, my AVR reports PCM multi-channels and plex EC3

But I suspect I'm only getting 2.0 channels PCM because the C2 doesn't support 5.1 pcm.

Code: Select all

  Audio Data Block:
    Linear PCM:
      Max channels: 2
      Supported sample rates (kHz): 192 96 48 44.1 32
      Supported sample sizes (bits): 24 20 16
    AC-3:
      Max channels: 6
      Supported sample rates (kHz): 48 44.1 32
      Maximum bit rate: 640 kb/s
    Enhanced AC-3 (DD+):
      Max channels: 8
      Supported sample rates (kHz): 48 44.1 32
      Supports Joint Object Coding
    MAT (MLP):
      Max channels: 8
      Supported sample rates (kHz): 48
      Supports Dolby TrueHD, object audio PCM and channel-based PCM
      Hash calculation not required for object audio PCM or channel-based PCM

[RESET_9999]

ok, I did more tests...

My previous picture was reporting EC3 because PLEX was configured to play the EC3 track while kodi was playing the DTSHD track. So I removed the DDP+ track just to be sure and now plex reports DTSHD and my AVR PCM and it sounds like 5.1 audio.

But one problem, if I play any DD DD+ track in bitstreaming, then my AVR get stuck in that mode and DTSHD no longer play.(I have to restart the AVR). This might have to do with the ''best match'' vs ''optimized'' kodi audio settings. And the FFMPEG EAC3 1536kbps tracks stutter just like on my x800 7.1 EAE encoded tracks are fine.

One more issue I think. Kodi also allows P7 ST rip to trigger DV but the RPU is ignored with my test file...
https://drive.google.com/file/d/1OyBr60 ... drive_link

[comorla45]

Hello, I stumbled upon issue, maybe someone here might be able to help me.

I want to convert 4K DV+HDR10 MKV into lower bitrate MP4 to play DV on my LG Plex.

Normally, when I only want to change the container from MKV to MP4 I just use

Code: Select all

ffmpeg.exe -i "source.mkv" -map 0 -c copy -c:s mov_text -strict unofficial "output.mp4" 

and all is nice and dandy. It triggers DV on my LG, but preservers the HDR10 metadata also, so all is OKay.

When I want to convert video stream I use:

Code: Select all

ffmpeg.exe -i "source.mkv" -map 0 -c copy -c:0 hevc_nvenc -cq 32 -preset p5 -c:s mov_text -strict unofficial "output.mp4" 

and it also copy all DV/HDR metadata, it even triggers Dolby Vision playback on TV (DV logo appears in the top right) but brightness is like in SD material. MediaInfoGUI claims all is okay. I lose HDR10+ but I do not care for that.

First is original MKV file:

converted MP4:


Any ideas whit it triggers DV but plays in low brightness?

[ragico]

How I know a movie RPU nits trough your scripts?

Workflow 2-3

Very useful . I checked my almost 500 DV P8 movies and found that about 40% are Rpu 4000. Therefore I have created separate folders for them to be watched on the boxes mentioned earlier in this thread,
Thank you