/// <summary>
/// Initialze MediaCapture
/// </summary>
/// <param name="panel"></param>
/// <returns></returns>
public async Task InitializeCapture(Windows.Devices.Enumeration.Panel panel = Windows.Devices.Enumeration.Panel.Back)
{
mediaCapture = new MediaCapture();
this.currentPanel = panel;
MediaCaptureInitializationSettings setting = await InitializeSettings(panel);
if (setting != null)
{
await mediaCapture.InitializeAsync(setting);
}
else
{
await mediaCapture.InitializeAsync();
}
var resolutions = this.mediaCapture.VideoDeviceController.GetAvailableMediaStreamProperties(MediaStreamType.Photo);
if (resolutions.Count >= 1)
{
var hires = resolutions.OrderByDescending(item => ((VideoEncodingProperties)item).Width).First();
await mediaCapture.VideoDeviceController.SetMediaStreamPropertiesAsync(MediaStreamType.Photo, hires);
}
if (!this.isExternalCamera)
{
var previewRotation = (this.currentPanel == Windows.Devices.Enumeration.Panel.Back) ? VideoRotation.Clockwise90Degrees : VideoRotation.Clockwise270Degrees;
try
{
mediaCapture.SetPreviewRotation(previewRotation);
mediaCapture.SetRecordRotation(previewRotation);
}
catch (Exception e)
{
Debug.WriteLine(e.Message);
}
}
}
public async Task <MediaCapture> Initialize()
{
var cameraDeviceInfos = (await DeviceInformation.FindAllAsync(DeviceClass.VideoCapture)).Where(d => d.IsEnabled && d.EnclosureLocation != null);
var frontCamDeviceInfo = cameraDeviceInfos.FirstOrDefault(d => d.EnclosureLocation.Panel == Panel.Front);
var mediaCaptureInitialization = new MediaCaptureInitializationSettings
{
PhotoCaptureSource = PhotoCaptureSource.Photo,
AudioDeviceId = string.Empty,
VideoDeviceId = frontCamDeviceInfo.Id,
};
mediaCapture = new MediaCapture();
await mediaCapture.InitializeAsync(mediaCaptureInitialization);
mediaCapture.VideoDeviceController.PrimaryUse = CaptureUse.Photo;
mediaCapture.SetPreviewRotation(VideoRotation.Clockwise270Degrees);
mediaCapture.SetRecordRotation(VideoRotation.Clockwise270Degrees);
// Create photo encoding properties as JPEG and set the size that should be used for photo capturing
imgEncodingProperties = ImageEncodingProperties.CreateJpeg();
imgEncodingProperties.Height = 480;
imgEncodingProperties.Width = 640;
return(mediaCapture);
}
private void DisplayInfo_OrientationChanged(DisplayInformation sender, object args)
{
if (mediaCapture != null)
{
rotation = VideoRotationLookup(sender.CurrentOrientation, false);
mediaCapture.SetPreviewRotation(rotation);
mediaCapture.SetRecordRotation(rotation);
}
}
public async Task InitializeCameraAsync()
{
try
{
if (_mediaCapture == null)
{
_mediaCapture = new MediaCapture();
_mediaCapture.Failed += MediaCapture_Failed;
_cameraDevices = await DeviceInformation.FindAllAsync(DeviceClass.VideoCapture);
if (_cameraDevices == null || !_cameraDevices.Any())
{
throw new NotSupportedException();
}
var device = _cameraDevices.FirstOrDefault(camera => camera.EnclosureLocation?.Panel == Panel);
var cameraId = device?.Id ?? _cameraDevices.First().Id;
await _mediaCapture.InitializeAsync(new MediaCaptureInitializationSettings { VideoDeviceId = cameraId });
if (Panel == Panel.Back)
{
_mediaCapture.SetRecordRotation(VideoRotation.Clockwise90Degrees);
_mediaCapture.SetPreviewRotation(VideoRotation.Clockwise90Degrees);
_mirroringPreview = false;
}
else
{
_mirroringPreview = true;
}
IsInitialized = true;
CanSwitch = _cameraDevices?.Count > 1;
RegisterOrientationEventHandlers();
await StartPreviewAsync();
}
}
catch (UnauthorizedAccessException)
{
errorMessage.Text = "Camera_Exception_UnauthorizedAccess".GetLocalized();
}
catch (NotSupportedException)
{
errorMessage.Text = "Camera_Exception_NotSupported".GetLocalized();
}
catch (TaskCanceledException)
{
errorMessage.Text = "Camera_Exception_InitializationCanceled".GetLocalized();
}
catch (Exception)
{
errorMessage.Text = "Camera_Exception_InitializationError".GetLocalized();
}
}
private void DisplayInfo_OrientationChanged(DisplayInformation sender, object args)
{
if (_mediaCapture == null)
{
return;
}
_mediaCapture.SetPreviewRotation(_cam
? VideoRotationLookup(sender.CurrentOrientation, true)
: VideoRotationLookup(sender.CurrentOrientation, false));
var rotation = VideoRotationLookup(sender.CurrentOrientation, false);
_mediaCapture.SetRecordRotation(rotation);
}
/// <summary>
/// Initializes the MediaCapture, registers events, gets camera device information for mirroring and rotating, starts preview and unlocks the UI
/// </summary>
/// <returns>Task</returns>
private async Task InitializeCameraAsync()
{
if (_mediaCapture == null)
{
_mediaCapture = new MediaCapture();
_mediaCapture.Failed += MediaCapture_Failed;
_cameraDevices = await DeviceInformation.FindAllAsync(DeviceClass.VideoCapture);
if (_cameraDevices == null)
{
throw new NotSupportedException();
}
try
{
var device = _cameraDevices.FirstOrDefault(camera => camera.EnclosureLocation?.Panel == Panel);
var cameraId = device != null ? device.Id : _cameraDevices.First().Id;
await _mediaCapture.InitializeAsync(new MediaCaptureInitializationSettings { VideoDeviceId = cameraId });
if (Panel == Panel.Back)
{
_mediaCapture.SetRecordRotation(VideoRotation.Clockwise90Degrees);
_mediaCapture.SetPreviewRotation(VideoRotation.Clockwise90Degrees);
_mirroringPreview = false;
}
else
{
_mirroringPreview = true;
}
IsInitialized = true;
}
catch (UnauthorizedAccessException ex)
{
throw ex;
}
if (IsInitialized)
{
CanSwitch = _cameraDevices?.Count > 1;
PreviewControl.Source = _mediaCapture;
RegisterOrientationEventHandlers();
await StartPreviewAsync();
}
}
}
/// <summary>
/// Invoked when this page is about to be displayed in a Frame.
/// </summary>
/// <param name="e">Event data that describes how this page was reached.
/// This parameter is typically used to configure the page.</param>
protected override async void OnNavigatedTo(NavigationEventArgs e)
{
var myArgs = (ImageCapturePageArguments)e.Parameter;
_project = myArgs.Project;
_targetFrame = myArgs.TargetFrame;
await _mediaCapture.InitializeAsync();
_imageCapture.Source = _mediaCapture;
_mediaCapture.SetPreviewRotation(VideoRotation.Clockwise90Degrees);
_mediaCapture.SetRecordRotation(VideoRotation.Clockwise90Degrees);
await _mediaCapture.StartPreviewAsync();
HardwareButtons.BackPressed += (sender, args) => Frame.Navigate(typeof(FramingPage), _project);
}
private async Task InitializeQrCode()
{
string error = null;
try
{
//if (_mediaCapture == null)
//{
// Find all available webcams
DeviceInformationCollection webcamList = await DeviceInformation.FindAllAsync(DeviceClass.VideoCapture);
// Get the proper webcam (default one)
DeviceInformation backWebcam = (from webcam in webcamList where webcam.IsEnabled select webcam).FirstOrDefault();
// Initializing MediaCapture
_mediaCapture = new MediaCapture();
await _mediaCapture.InitializeAsync(new MediaCaptureInitializationSettings
{
VideoDeviceId = backWebcam.Id,
AudioDeviceId = "",
StreamingCaptureMode = StreamingCaptureMode.Video,
PhotoCaptureSource = PhotoCaptureSource.VideoPreview
});
// Adjust camera rotation for Phone
_mediaCapture.SetPreviewRotation(VideoRotation.Clockwise90Degrees);
_mediaCapture.SetRecordRotation(VideoRotation.Clockwise90Degrees);
// Set the source of CaptureElement to MediaCapture
captureElement.Source = _mediaCapture;
await _mediaCapture.StartPreviewAsync();
// _mediaCapture.FocusChanged += _mediaCapture_FocusChanged; // ToDo:
// Seetting Focus & Flash(if Needed)
var torch = _mediaCapture.VideoDeviceController.TorchControl;
if (torch.Supported)
{
torch.Enabled = true;
}
await _mediaCapture.VideoDeviceController.FocusControl.UnlockAsync();
var focusSettings = new FocusSettings();
focusSettings.AutoFocusRange = AutoFocusRange.FullRange;
focusSettings.Mode = FocusMode.Continuous;
focusSettings.WaitForFocus = true;
focusSettings.DisableDriverFallback = false;
_mediaCapture.VideoDeviceController.FocusControl.Configure(focusSettings);
await _mediaCapture.VideoDeviceController.FocusControl.FocusAsync();
//}
}
catch (Exception ex)
{
dialog = new MessageDialog("Error: " + ex.Message);
dialog.ShowAsync();
}
}