// Set the recording state: display the video on the viewfinder.
private void StartVideoPreview()
{
ThreadPool.QueueUserWorkItem(state =>
{
Thread.Sleep(100);
Deployment.Current.Dispatcher.BeginInvoke(() =>
{
try
{
// Display the video on the viewfinder.
if (_captureSource.VideoCaptureDevice != null &&
_captureSource.State == CaptureState.Stopped)
{
// Add _captureSource to videoBrush.
//ViewfinderBrush = new VideoBrush();
//ViewfinderBrush.Transform = new CompositeTransform { CenterX = 0.5, CenterY = 0.5 };
ViewfinderBrush.SetSource(_captureSource);
// Add videoBrush to the visual tree.
//Viewfinder.Fill = ViewfinderBrush;
_captureSource.Start();
// Set the button states and the message.
UpdateUI(ButtonState.Ready, AppResources.ReadyToRecord);
}
}
// If preview fails, display an error.
catch (Exception e)
{
DebugText.Text = AppResources.Error.ToUpperInvariant() + ": " + e.Message;
}
});
});
}
private void Initialize()
{
// Initialize camera
var rotation = App.Camera.SensorLocation == CameraSensorLocation.Back ?
App.Camera.SensorRotationInDegrees : -App.Camera.SensorRotationInDegrees;
ViewfinderBrush.SetSource(App.Camera);
ViewfinderBrushTransform.Rotation = rotation;
// Setup image processing pipeline
_source = new CameraPreviewImageSource(App.Camera);
_rotationFilter = new RotationFilter(rotation);
_chromaKeyFilter = new ChromaKeyFilter();
_filters = new List <IFilter> {
_rotationFilter, _chromaKeyFilter
};
_effect = new FilterEffect(_source)
{
Filters = _filters
};
_bitmap = new WriteableBitmap((int)App.Camera.PreviewResolution.Width, (int)App.Camera.PreviewResolution.Height);
_renderer = new WriteableBitmapRenderer(_effect, _bitmap, OutputOption.Stretch);
FilteredImage.Source = _bitmap;
_color = Color.FromArgb(0xFF, 0xFF, 0xFF, 0xFF);
ColorBorder.Background = new SolidColorBrush(_color);
// Start rendering timer
_timer = new DispatcherTimer {
Interval = TimeSpan.FromMilliseconds(10)
};
_timer.Tick += DispatcherTimer_Tick;
_timer.Start();
_initialized = true;
}
public CameraPage()
{
InitializeComponent();
CameraButtons.ShutterKeyPressed += OnButtonFullPress;
if (PhotoCamera.IsCameraTypeSupported(CameraType.Primary))
{
myCam = new PhotoCamera(CameraType.Primary);
ViewfinderCanvas.Height = myCam.Resolution.Height;
ViewfinderCanvas.Width = myCam.Resolution.Width;
ViewfinderBrush.SetSource(myCam);
//myCam.Initialized += cam_Initialized;
myCam.CaptureCompleted += myCam_CaptureCompleted;
}
else
{
MessageBox.Show("A Camera is not available on this device.", "Error!", MessageBoxButton.OK);
}
}
public void InitializeVideoRecorder()
{
if (_captureSource == null)
{
// Create the VideoRecorder objects.
_captureSource = new CaptureSource();
_captureSource.VideoCaptureDevice.DesiredFormat = GetDesiredFormat();
_fileSink = new FileSink();
_videoCaptureDevice = CaptureDeviceConfiguration.GetDefaultVideoCaptureDevice();
// Add eventhandlers for _captureSource.
_captureSource.CaptureFailed += OnCaptureFailed;
_captureSource.CaptureImageCompleted += OnThumbCompleted;
// Initialize the camera if it exists on the device.
if (_videoCaptureDevice != null)
{
// Create the VideoBrush for the viewfinder.
//ViewfinderBrush = new VideoBrush();
//ViewfinderBrush.Transform = new CompositeTransform{CenterX = 0.5, CenterY = 0.5};
ViewfinderBrush.SetSource(_captureSource);
// Display the viewfinder image on the rectangle.
Viewfinder.Fill = ViewfinderBrush;
// Start video capture and display it on the viewfinder.
_captureSource.Start();
// Set the button state and the message.
UpdateUI(ButtonState.Initialized, AppResources.TapRecordToStartRecording);
}
else
{
// Disable buttons when the camera is not supported by the device.
UpdateUI(ButtonState.CameraNotSupported, AppResources.ACameraIsNotSupportedOnThisDevice);
}
}
}
private void SetCameraType(CameraType cameraType)
{
_camera = new PhotoCamera(CurrentCameraMode = cameraType);
switch (cameraType)
{
case CameraType.FrontFacing:
ViewfinderBrush.RelativeTransform =
new CompositeTransform {
CenterX = 0.5, CenterY = 0.5, Rotation = -90
};
break;
case CameraType.Primary:
ViewfinderBrush.RelativeTransform =
new CompositeTransform {
CenterX = 0.5, CenterY = 0.5, Rotation = 90
};
break;
}
ViewfinderBrush.SetSource(_camera);
}
