How to pass cameraStream so as not to require repeated permissions to use the webcam

[didinium]

Hello all. I am trying to make an application that will take a series of gifs from one long webcam stream, but am not able to figure out how to do so without repeatedly asking for permission to use the webcam. It seems that the way to do this is to call a callback function with the existing cameraStream, but I do not know how to access this cameraStream media object and am really tearing my hair out trying to figure it out.

How would you do such a thing?