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After immigrating Swift 4 following function has been stopped being called. I could not find the reason.

  func captureOutput(_ captureOutput: AVCaptureOutput!, didOutputSampleBuffer sampleBuffer: CMSampleBuffer!, from connection: AVCaptureConnection!) {

        Code

 }
Hope
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1 Answers1

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After making Xcode 9 making suggestion by starting writing function 

      func captureOutput(_ output: AVCaptureOutput, didOutput sampleBuffer: CMSampleBuffer, from connection: AVCaptureConnection) {

   code

}

Suggested and I replaced 

            func captureOutput(_ captureOutput: AVCaptureOutput!, didOutputSampleBuffer sampleBuffer: CMSampleBuffer!, from connection: AVCaptureConnection!) {

with 

           func captureOutput(_ output: AVCaptureOutput, didOutput sampleBuffer: CMSampleBuffer, from connection: AVCaptureConnection) {

Now, it has been called.

Hope
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  • The unusual thing was not working function has been excepted even if it was not written in proper format for Swift4. – Hope Sep 30 '17 at 09:26