DCP-o-matic

Another desired feature is to be able to pass multiple DKDMs for KDM generation instead of just 1

Is this because more than one DKDM is needed to decrypt a particular DCP?

I think it's better to leave the time zone in the database and just offer to override it (or choose daylight saving) in the KDM creation dialog. So (playing Devil's advocate) if I choose two cinemas with different time zones, then make KDMs for both at the same time, what happens with the "ove...

I suspect it's all rather dependent on the source material and how far apart the speakers are from each other, but I don't know for sure.

The current "mid side decoder" does

centre = (left_in + right_in) / 2
left_out = left_in - mid = (left_in - right_in) / 2
right_out = right_in - mid = (right_in - left_in) / 2

Still no luck with reproducing it - do you still have those files that you sent before? I don't think I ever downloaded them unfortunately. Just the metadata.xml from the project would be an interesting start.

Let me try again to reproduce. I added a bug to the tracker.

I made a build adding a new "Centre channel creator" processor which does what I think you are expecting (left is left, right is right, centre is the average of left and right).

https://dcpomatic.com/build/make-centre/86c39b8

Let me know how you get on if you try it in a cinema.

You will probably get away with it, but it's strange that DCP-o-matic made a DCP with those errors. What version are you using?

Can you send the file from the DCP that starts with cpl_ and ends with .xml? Either here or to carl@dcpomatic.com

Great! First I'd like to try "Dr. MinGW", for which I think you need to follow these steps: Download the software . Unpack it somewhere. Open a command window with administrator privileges and go into the unpacked folder. Type drmingw -i to install. Then crash DCP-o-matic again and see if ...

I haven't heard of problems with & (and I just tried it quickly and it seemed OK).

Sadly DCP-o-matic's crash logging on Windows is quite poor, but if you have time we can try adding some tools to find out more about the crash. Would you be able to do a debugging session over Zoom (or similar)?