private void StartFaceDetection(MediaCapture capture)
{
if (capture == null)
{
throw new ArgumentNullException();
}
if (_faceDetectionCancellationTokenSource != null)
{
return;
}
_faceDetectionCancellationTokenSource = new CancellationTokenSource();
var token = _faceDetectionCancellationTokenSource.Token;
_faceDetectionTask = Task.Factory.StartNew(async() =>
{
try
{
FaceDetector detector = new FaceDetector();
detector.Initialize(new FaceDetectorInitializationData()
{
FaceData = Package.Current.InstalledLocation.Path + "\\" + FacePredictorFileName
});
while (!token.IsCancellationRequested)
{
await FaceDetectAsync(detector, capture, token);
}
}
catch (OperationCanceledException) { }
catch (Exception e)
{
Debug.WriteLine("Face detection failed.");
Debug.WriteLine(e.Message);
}
}, token);
}