External USB or GigE Camera on an iPhone

Question

I'm working on a vision project that is capturing videos with a dedicated app on an iPhone. Since the footage was only used to replay and watch, the rolling shutter effect was no issue.

Now the idea is to use the footage for computer vision. So a global shutter camera is a requirement now. I'm asking for tips and hints on connecting industrial USB or GigE cameras to iPhones. The idea is to still use all the functionality of the app and 'just' add the option to use external USB or GigE ethernet cameras.

I was not able to find any information regarding AVFoundation and GigE

This is my reasearch so far:

OpenCV(no mention for external cameras)

AVFoundation (refering to internal cameras as well)

AVcapturedevice (this should pick up any connected devices, but there is no mention about suported devices or GigE)

Im happy for any suggestions and/or experiences.

Julian