public async Task PreviewStart()
{
if (!cameraCapture.IsInitialized)
{
await cameraCapture.Initialize(captureElement);
}
if (!cameraCapture.IsPreviewActive)
{
await cameraCapture.Start();
}
IsPreviewActive = cameraCapture.IsPreviewActive;
UpdateProcessing();
}
private async void ButtonPreview_Click(object sender, RoutedEventArgs e)
{
await _cameraCapture.Initialize(CaptureElementPreview);
await InitializeFaceDetection();
if (_cameraCapture.IsInitialized)
{
await UpdatePreviewState();
UpdateUi();
}
else
{
Debug.WriteLine("Video capture device could not be initialized");
}
}
private async Task UpdatePreviewState()
{
await cameraCapture.Initialize(CaptureElementPreview);
if (cameraCapture.IsInitialized)
{
if (!cameraCapture.IsPreviewActive)
{
await cameraCapture.Start();
BeginProcessing();
}
else
{
await cameraCapture.Stop();
}
}
}