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

If previous answers cannot solve your problem for swift 4 and newer, correct the function name by add public can fix the problem.

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