// // Not strictly necessary, but the movie might be very large, so we might // as well help the system by disposing before the GC kicks-in // protected override void Dispose(bool disposing) { if (captureSession != null) { captureSession.StopRunning(); } if (captureInput != null && captureInput.Device != null && captureInput.Device.IsOpen) { captureInput.Device.Close(); } if (disposing) { movie.Dispose(); captureSession.Dispose(); captureInput.Dispose(); decompressedVideo.Dispose(); } base.Dispose(disposing); }
public override void WindowControllerDidLoadNib(NSWindowController windowController) { base.WindowControllerDidLoadNib(windowController); // A reference to the window controller must be kept on the managed side // to keep the object from being GC'd so that the delegates below resolve. // Don't remove unless the framework is updated to track the reference. this.windowController = windowController; NSError err; windowController.Window.WillClose += delegate { if (captureSession != null) { captureSession.StopRunning(); } var dev = captureInput.Device; if (dev.IsOpen) { dev.Close(); } }; // Create a movie, and store the information in memory on an NSMutableData movie = new QTMovie(new NSMutableData(1), out err); if (movie == null) { NSAlert.WithError(err).RunModal(); return; } movieView.Movie = movie; // Find video device captureSession = new QTCaptureSession(); var device = QTCaptureDevice.GetDefaultInputDevice(QTMediaType.Video); if (!device.Open(out err)) { NSAlert.WithError(err).RunModal(); return; } // Add device input captureInput = new QTCaptureDeviceInput(device); if (!captureSession.AddInput(captureInput, out err)) { NSAlert.WithError(err).RunModal(); return; } // Create decompressor for video output, to get raw frames decompressedVideo = new QTCaptureDecompressedVideoOutput(); decompressedVideo.DidOutputVideoFrame += delegate(object sender, QTCaptureVideoFrameEventArgs e) { lock (this){ currentImage = e.VideoFrame; } }; if (!captureSession.AddOutput(decompressedVideo, out err)) { NSAlert.WithError(err).RunModal(); return; } // Activate preview captureView.CaptureSession = captureSession; // Start running. captureSession.StartRunning(); }