VideoCapture "Changed waitThread to realtime priority!"

Python
,
1

the video capture window shows three blue loading dots permanently, the terminal reads the following:

  1. Changed waitThread to realtime priority! Asked for all format descriptions… Asked for all format descriptions… [setting] Setting kCMIODevicePropertyDeviceMaster to 1740 [setting] Setting kCMIOStreamPropertyFormatDescription Got new format : 1920x1080 Asked for all format descriptions… [setting] Setting kCMIODevicePropertyDeviceMaster to -1 [setting] Setting kCMIODevicePropertyDeviceMaster to 1740 [setting] Setting kCMIODevicePropertyDeviceMaster to -1 Asked for all format descriptions… [RemoteFrameSource] Releasing RemoteFrameSource

I’m on a mac and this only started being an issue after I recently updated, but there’s nothing else that I changed that instigated this. Please help! This is for my senior project!

2

what did you update, from what to what version? can you downgrade that?

what exactly do you do to reproduce this? please provide a minimal reproducible example.

please investigate all “permissions” stuff that MacOS requires.

investigate all available video devices. MacOS possibly provides more than just a webcam.

3

It was working on mac monterey 12.2.1, but I updated to 12.3.1. I’m currently backing up my mac and will try to downgrade after. I have no idea how to reproduce this. I’ve tried uninstalling opencv and reinstalling it, which was unsuccessful. Other opencv functions work, it’s just the videocapture that causes problems.