AVCapture Video Helper

Protocol-based easy setup for enabling preview of live video from camera on your view, that cna be used for recording or processing

Usage:

Step 1: Confirm your view / view controller to LiveVideoCapture

class ViewController: UIViewController, LiveVideoCapture {}

Step 2: Allow xcode to fill all needed variables and methodes

step 3: add intilizers (if you dont need custom intilizer use the example code)

class ViewController: UIViewController, LiveVideoCapture {
    
    var captureSession: AVCaptureSession?
    var videoPreviewLayer: AVCaptureVideoPreviewLayer?
    var videoDataOutput: AVCaptureVideoDataOutput?

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

step 4: in the view didload or the place were you are plannig to start video playback call prepareForVideoCapture()

    override func viewDidLoad() {
    
        super.viewDidLoad()
        prepareForVideoCapture(on: view)
    }

step 5: if View is getting dissapeared or needs to stop video, call stopSession()

    override func viewWillDisappear(_ animated: Bool) {
    
        super.viewWillDisappear(animated)
        stopSession()
    }

step 6: if video needs to be restarted, call startSession()

    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)
        startSession()
    }

---

On your View

For detailed information on how to add prototcol on view follow sample application VideoView.swift