gistfile1.swift

  func videoOrientation() {
    let previewConn = self.previewLayer?.connection
    let orientation = UIApplication.sharedApplication().statusBarOrientation

    switch orientation {
    case UIInterfaceOrientation.LandscapeLeft:
      previewConn!.videoOrientation = AVCaptureVideoOrientation.LandscapeLeft
    case UIInterfaceOrientation.LandscapeRight:
      previewConn!.videoOrientation = AVCaptureVideoOrientation.LandscapeRight
    case UIInterfaceOrientation.Portrait:
      previewConn!.videoOrientation = AVCaptureVideoOrientation.Portrait
    case UIInterfaceOrientation.PortraitUpsideDown:
      previewConn!.videoOrientation = AVCaptureVideoOrientation.PortraitUpsideDown
    default:
      previewConn!.videoOrientation = AVCaptureVideoOrientation.LandscapeRight
    }
  }