Save Video Using AVFoundation Swift

Question

Hi I followed a course by Jared Davidson to create a custom camera view and save pictures using AVFoundation. https://www.youtube.com/watch?v=w0O3ZGUS3pk

However I would

Answer 1

after if (device as AnyObject).position == AVCaptureDevicePosition.front{

add

// Audio Input
                let audioInputDevice = AVCaptureDevice.defaultDevice(withMediaType: AVMediaTypeAudio)

                do
                {
                    let audioInput = try AVCaptureDeviceInput(device: audioInputDevice)

                    // Add Audio Input
                    if captureSession.canAddInput(audioInput)
                    {
                        captureSession.addInput(audioInput)
                    }
                    else
                    {
                        NSLog("Can't Add Audio Input")
                    }
                }
                catch let error
                {
                    NSLog("Error Getting Input Device: \(error)")
                }

Thanks