private async Task <bool> InitTorchControl()
{
var cameraId = await _systemService.GetCameraIdAsync(Panel.Back);
_mediaCapture?.Dispose();
_mediaCapture = new MediaCapture();
await _mediaCapture.InitializeAsync(new MediaCaptureInitializationSettings
{
VideoDeviceId = cameraId.Id
});
var videoDeviceController = _mediaCapture.VideoDeviceController;
_torchControl = videoDeviceController.TorchControl;
this.TorchSupported = _torchControl.Supported;
if (this.TorchSupported && _torchControl.PowerSupported)
{
this.FlashPowerValue = SettingsHelper.GetValueOrDefault("flashPowerValue", 0.5);
}
RaisePropertyChanged(nameof(FlashPowerSupported));
return(true);
}
private async void Torch_Click(object sender, RoutedEventArgs e)
{
CaptureElement captureUI = new CaptureElement();
try
{
MediaCapture mediaCapture = new MediaCapture();
var cam = await GetCam();
await mediaCapture.InitializeAsync(new MediaCaptureInitializationSettings
{
VideoDeviceId = cam.Id,
AudioDeviceId = string.Empty,
StreamingCaptureMode = StreamingCaptureMode.Video,
PhotoCaptureSource = PhotoCaptureSource.VideoPreview
});
captureUI.Source = mediaCapture;
await mediaCapture.StartPreviewAsync();
torchControl = mediaCapture.VideoDeviceController.TorchControl;
if (torchControl.Supported)
{
Debug.WriteLine("Вспышка поддерживается");
}
else
{
Debug.WriteLine("Вспышка не поддерживается");
}
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
}
}
private async void Initialize()
{
try
{
var mediaCapture = new MediaCapture();
await mediaCapture.InitializeAsync();
var file = await ApplicationData.Current.LocalFolder.CreateFileAsync(Guid.NewGuid() + ".mp4",
CreationCollisionOption.ReplaceExisting);
await mediaCapture.StartRecordToStorageFileAsync(MediaEncodingProfile.CreateMp4(VideoEncodingQuality.Wvga), file);
var videoDev = mediaCapture.VideoDeviceController;
videoDev.TorchControl.Enabled = true;
_torchControl = videoDev.TorchControl;
TorchSupported = _torchControl.Supported;
TorchPowerSupported = _torchControl.PowerSupported;
if (TorchPowerSupported)
_torchControl.PowerPercent = PercentValue;
if (TorchSupported)
_torchControl.Enabled = IsOn;
_isInitialized = true;
_toggleTorchCommand.RaiseCanExecuteChanged();
}
catch (Exception ex)
{
ErrorMessage = "Etwas unerwartetes ist passiert. Entschuldige!";
}
}
