Accessing the iOS device’s camera stream using a web application

Question

My goal is to have access to the camera stream of the iOS device and transfer it to the server in real time. The important point is that I am not trying to access the photo / video library, I am not taking photos / videos. (e.g. using <input type="file" accept="video/*" capture="camera">)

I am trying to access a video stream in a Safari browser. For other modern browsers, I can use WebRTC, but it is not suitable for Safari, as well as for Flash. Is there another way to capture the camera stream of an iOS device in a web application in real time? (What is the equivalent of Flash / WebRTC?)