Tells the receiver to start running.
- iOS 4.0+
- macOS 10.7+
- Mac Catalyst 13.0+
This method is used to start the flow of data from the inputs to the outputs connected to the
AVCapture instance that is the receiver. This method is synchronous and blocks until the receiver has either completely started running or failed to start running. If an error occurs during this process and the receiver fails to start running, you receive an