DCP-o-matic Player Dropping Frames on HEDT

[dhl]

Hello,

I'm having trouble with DCP-o-matic Player. It drops frames and throws up this error message even though my DCP is valid (tested and confirmed good at a local theater) and my machine is more than powerful enough to play the file:

Screen Shot 2022-04-10 at 11.14.52 AM.png

I'm using DCP-o-matic Player 2 version 2.16.8 git ef7540b74

macOS 10.15.7
Hacintosh build:
Intel Core i9 7980XE
Radeon VII
128Gb RAM

My machine can edit 8K Red RAW and is plenty fast enough to play a 2K flat DCP

Any idea what's going on here?

DCP-o-matic 2 worked great for creating the DCP. Would love to be able to use the player to validate.

Many thanks for your help!

best,
--David

[Carsten]

my machine is more than powerful enough to play the file

How do you know that, if it doesn't?


Try to reduce playback resolution, or try OpenGL mode.

[dhl]

my machine is more than powerful enough to play the file

How do you know that, if it doesn't?


Try to reduce playback resolution, or try OpenGL mode.

I know because I can open the audio and video .mxf streams in both Premiere Pro and VLC and they play flawlessly with the machine essentially idling.

This error was at quarter resolution playback. I assure you, my machine can is plenty fast enough to play a 2K flat .mxf with 5.1 sound.

How do I enable OpenGL mode? It doesn't appear to be on and I don't see any menu items to turn it on. Perhaps that's the problem? Thanks!

Screen Shot 2022-04-11 at 11.36.17 AM.png

[carl]

It's in the player preferences, "video display mode". It might also be interesting to specify a debug log file in that same preferences tab, play a DCP, then attach the log file.

[dhl]

It's in the player preferences, "video display mode". It might also be interesting to specify a debug log file in that same preferences tab, play a DCP, then attach the log file.

Found it, and success!

With OpenGL enabled, it's seeing my GPU and playback is perfect at full resolution and full screen.

Many thanks for your help!

[Ron]

I was having the same problem with too many frame-dropouts on playback and so I adjusted the setting to <OpenGL mode> as suggested above but now the player doesn't even load. It just flashes the name <DoM player> and then the player doesn't load at all.

Should I reinstall the player?

[carl]

That probably won't help. Is this on mac or Windows?

[Ron]

I'm on macOS 10.15.7 using DoM 10...

Ps.
I just tried to load DoM and the same thing happened... might be something to do with my Imac.

I rebooted in case it had something to do with the mac and both DoM & Player don't load

[carl]

The player and main DoM both use the same renderer, so if one is failing the other one will too.

The easy way to reset the setting would be to delete

Code: Select all

/Users/your_user_Name/Library/Preferences/com.dcpomatic/2

... although that will destroy your settings, certificates etc. A more gentle solution would be to edit

Code: Select all

/Users/your_user_Name/Library/Preferences/com.dcpomatic/2/2.16/config.xml

in a text editor and look for <VideoViewType>opengl</VideoViewType> and change the opengl to simple

[Ron]

Thanks Carl...

I couldn't find the file you indicated ... So I deleted DoM from the application folder and reinstalled the last version. I was then able to load the DoM.

I don't know if changing the settings on the player was the cause but whatever it was it stopped DoM & the player from loading at all.