protected override async void OnNavigatedTo(NavigationEventArgs e)
{
InitModel();
await CameraPreview.StartAsync();
CameraPreview.CameraHelper.FrameArrived += CameraHelper_FrameArrived;
}
public async void OnXamlRendered(FrameworkElement control)
{
// Using a semaphore lock for synchronization.
// This method gets called multiple times when accessing the page from Latest Pages
// and creates unused duplicate references to Camera and memory leaks.
await semaphoreSlim.WaitAsync();
var cameraHelper = _cameraPreviewControl?.CameraHelper;
UnsubscribeFromEvents();
_cameraPreviewControl = control.FindChild <CameraPreview>();
if (_cameraPreviewControl != null)
{
_cameraPreviewControl.PreviewFailed += CameraPreviewControl_PreviewFailed;
await _cameraPreviewControl.StartAsync(cameraHelper);
_cameraPreviewControl.CameraHelper.FrameArrived += CameraPreviewControl_FrameArrived;
}
_imageControl = control.FindDescendantByName("CurrentFrameImage") as Image;
if (_imageControl != null)
{
_softwareBitmapSource = new SoftwareBitmapSource();
_imageControl.Source = _softwareBitmapSource;
}
_errorMessageText = control.FindDescendantByName("ErrorMessage") as TextBlock;
semaphoreSlim.Release();
}
private async void Application_Resuming(object sender, object e)
{
var cameraHelper = _cameraPreviewControl?.CameraHelper;
_cameraPreviewControl.PreviewFailed += CameraPreviewControl_PreviewFailed;
await _cameraPreviewControl.StartAsync(cameraHelper);
_cameraPreviewControl.CameraHelper.FrameArrived += CameraPreviewControl_FrameArrived;
}
protected override async void OnNavigatedTo(NavigationEventArgs e)
{
_model = await LearningModelYolo.CreateFromStreamAsync();
_cameraModel = new CameraModel().GetCameraSize(CameraPreview);
await CameraPreview.StartAsync();
CameraPreview.CameraHelper.FrameArrived += CameraHelper_FrameArrived;
}
protected override async void OnNavigatedTo(NavigationEventArgs e)
{
LoadYoloOnnxModel();
Window.Current.SizeChanged += Current_SizeChanged;
await CameraPreview.StartAsync();
CameraPreview.CameraHelper.FrameArrived += CameraHelper_FrameArrived;
}
protected override async void OnNavigatedTo(NavigationEventArgs e)
{
// Load the model
await LoadModelAsync();
GetCameraSize();
Window.Current.SizeChanged += Current_SizeChanged;
await CameraPreview.StartAsync();
CameraPreview.CameraHelper.FrameArrived += CameraHelper_FrameArrived;
}
protected override async void OnNavigatedTo(NavigationEventArgs e)
{
_softwareBitmapSource = new SoftwareBitmapSource();
CurrentFrameImage.Source = _softwareBitmapSource;
GetCameraSize();
Window.Current.SizeChanged += Current_SizeChanged;
await CameraPreview.StartAsync();
CameraPreview.CameraHelper.FrameArrived += CameraHelper_FrameArrived;
}
