AVCamBarcode.CameraViewController.ConfigureSession C# (CSharp) Метод

		void ConfigureSession ()
		{
			if (setupResult != SessionSetupResult.Success)
				return;

			session.BeginConfiguration ();

			var videoDevice = DeviceWithMediaType (AVMediaType.Video, AVCaptureDevicePosition.Back);
			NSError err;
			var vDeviceInput = AVCaptureDeviceInput.FromDevice (videoDevice, out err);
			if (err != null) {
				Console.WriteLine ($"Could not create video device input: ${err}");
				setupResult = SessionSetupResult.ConfigurationFailed;
				session.CommitConfiguration ();
				return;
			}

			if (session.CanAddInput (vDeviceInput)) {
				session.AddInput (vDeviceInput);
				videoDeviceInput = vDeviceInput;
			} else {
				Console.WriteLine ("Could not add video device input to the session");
				setupResult = SessionSetupResult.ConfigurationFailed;
				session.CommitConfiguration ();
				return;
			}

			// Add metadata output.
			if (session.CanAddOutput (metadataOutput)) {
				session.AddOutput (metadataOutput);

				// Set this view controller as the delegate for metadata objects.
				metadataOutput.SetDelegate (this, metadataObjectsQueue);
				metadataOutput.MetadataObjectTypes = metadataOutput.AvailableMetadataObjectTypes; // Use all metadata object types by default.
				metadataOutput.RectOfInterest = CGRect.Empty;
			} else {
				Console.WriteLine ("Could not add metadata output to the session");
				setupResult = SessionSetupResult.ConfigurationFailed;
				session.CommitConfiguration ();
				return;
			}

			session.CommitConfiguration ();
		}