private async Task <bool> Init(IProgress <ManualRecogProgress> progress)
{
var initialized = true;
_progress = progress;
if (_camCts == null)
{
_camCts = new CancellationTokenSource();
}
if (_camEnumerator == null)
{
_camEnumerator = _captureService.CaptureFrames(_camCts.Token).GetAsyncEnumerator(_camCts.Token);
}
if (!_algService.Alghorithm.ManualRecog)
{
initialized = await _algService.Alghorithm.StartManualFaceRecog();
}
return(initialized);
}
private async Task StartInitFaceStep()
{
_camCts = new CancellationTokenSource();
var camEnumerator = _captureService.CaptureFrames(_camCts.Token).GetAsyncEnumerator(_camCts.Token);
Task?stepEndTask = null;
while (await camEnumerator.MoveNextAsync())
{
using var frame = camEnumerator.Current;
Application.Current.Dispatcher.Invoke(() => _vm.CallOnFrameChanged(frame.ToBitmapImage()));
var rects = _faceDetection.DetectFrontalThenProfileFaces(frame);
if (_startStep)
{
if (rects.Length == 1)
{
Application.Current.Dispatcher.Invoke(() =>
{
_vm.HideOverlay();
_vm.StepStarted = true;
});
stepEndTask = await _profileInitService.InitFace(_authenticationService.User, camEnumerator,
_camCts.Token);
_startStep = false;
}
else
{
if (!_stepCompleted)
{
Application.Current.Dispatcher.Invoke(() =>
_vm.ShowOverlay(rects.Length > 1 ? "More than 1 face detected" : "Face not detected"));
}
}
}
if (rects.Length == 1)
{
Application.Current.Dispatcher.Invoke(() =>
{
_vm.HideOverlay();
_vm.CallOnFaceDetected(rects.First());
});
}
else
{
if (!_stepCompleted)
{
Application.Current.Dispatcher.Invoke(() =>
{
_vm.ShowOverlay(rects.Length > 1 ? "More than 1 face detected" : "Face not detected");
_vm.CallOnNoFaceDetected();
});
}
}
}
if (stepEndTask != null)
{
await stepEndTask;
}
}