I have a problem with this line which is ok in swift 2 but not in swift 3
let videoOutput = AVCaptureVideoDataOutput()
videoOutput.setSampleBufferDelegate(self, queue: dispatch_queue_create("sample buffer delegate", DISPATCH_QUEUE_SERIAL))
It doesn't work in Swift 3 - error : Cannot convert value of type '()' to expected argument type '__OS_dispatch_queue_attr?
Does anyone know how to fix it ?