captureOutput function isn't called using setSampleBufferDelegate

Question

I\'m starting to develop an iOS app and this is my first SO post. I\'m trying to implement a UI view which can show the preview video of the rear camera and process the captured

Answer 1

From Swift 4:

func captureOutput(_ captureOutput: AVCaptureOutput!, 
didOutputMetadataObjects metadataObjects: [Any]!, from connection: 
AVCaptureConnection!)  

won't be called as it no longer exists.

It has been changed to the following :

func metadataOutput(_ output: AVCaptureMetadataOutput, didOutput metadataObjects: [AVMetadataObject], from connection: AVCaptureConnection)