[fandangos]

Hi @fandangos,

I am still having sporadic problems with movies (P7 FEL and P7 Mel) not starting. I see the Kodi spinning wheel. But I recognized that it's always possible to start the P81 file from the makeMKV testfiles. It also "repairs" a faulty P7 FEL/MEL start. You do not need to restart Kodi or the Shield, if you start this file. After that you can start a P7 file again. If the P7 FEL / MEL file doesn't start, start the P81 file again.  

https://www.makemkv.com/download/dvtest/

Maybe this helps to find a relevant difference... What do you think about it?

My hardware / software:
 

• Nvidia Shield 2019 Pro: 8.2.1
  
• LG OLED65C97LA: 05.00.10
  
• Sonos Arc: 12.2.2
  
  
• Kodi: kodiapp-arm64-v8a-debug-dhv1-v2.apk
  

My Kodi settings
 

• Settings - Player - Videos - Adjust display refresh rate -> On start / stop
  
• Settings - System - Display - Resolution 3840x2160p
  
• Settings - System - Display - Refresh Rate -> 50.00
  
• Settings - System - Display - Delay after change of refresh rate -> 1.0 seconds (also tried 4 seconds, makes no difference)
  
• Settings - System - Display - Whitelist:
  -> 3840x2160p 60.00Hz
  -> 3840x2160p 59.94Hz
  -> 3840x2160p 50.00Hz
  -> 3840x2160p 24.00Hz
  -> 3840x2160p 23.98Hz
  -> 1920x1080p 120.00Hz
  -> 1920x1080p 60.00Hz
  -> 1920x1080p 59.94Hz
  -> 1920x1080p 50.00Hz
  -> 1920x1080p 24.00Hz
  -> 1920x1080p 23.98Hz
  
• Settings - System - Display - Allow double refresh rates -> activated
  
• Settings - System - Audio - Number of channels -> 5.1
  
• Settings - System - Audio - Allow passthrough -> activated
  
• Settings - System - Audio - Allow passthrough:
  -> AC3
  -> E-AC3
  -> True-HD
  -> My Sonos Arc doesn't support DTS or DTS-HD, but it gives me PCM/LPCM instead.
  

Do you see any configuration mistake? What is different to your configuration? What do I miss?


I recognized another issue. With the latest Kodi master Dolby Vision mp4 files work as expected, but with your build the colors are wrong. 

Regards Hoppel

It would be a good idea to test if amc-hevc is needed for some dolby vision files, and amc-dvh1 for others, or even dvhe. 

The idea would be having 3 different builds, (you can find 2 of mine one with amc-hevc and one with amc-dvh1) and do the following:
Play the all the dv files you use for testing and take note. 
Do the same with amc-dvh1. 

If a Dolby Vision profile makes a difference we can separate those. 

Now about mp4, this really should not happen. There's an if statement that holds it all:
if (m_bMatroska)
This declares everything, so the MKBETAG for Dolby Vision is only declared after it, and selecting the renderer happens only with the MKBETAG. 

So, unless this has something to do with FFmpeg (which shouldn't) I don't see how this affects mp4. 

It would be a good idea to check if other builds show the same problem. 
Also I would avoid whitelisting resolutions, unless you have some fancy upscaling equipement like the Envy.