private async Task StartPreviewAsync()
{
try
{
m_mediaCapture = new MediaCapture();
m_mediaCapture.Failed += OnMediaCaptureFailed;
_displayRequest.RequestActive();
// Populate orientation variables with the current state
m_displayOrientation = m_displayInformation.CurrentOrientation;
RegisterEventHandlers();
m_mediaCapture.RecordLimitationExceeded += OnMediaCaptureRecordLimitationExceeded;
var devInfo = await FindCameraDeviceByPanelAsync(m_desiredCameraPanel);
var id = devInfo != null ? devInfo.Id : string.Empty;
var settings = new MediaCaptureInitializationSettings();
settings.VideoDeviceId = id;
settings.MediaCategory = MediaCategory.Communications;
await m_mediaCapture.InitializeAsync(settings);
m_mediaCapture.SetEncoderProperty(MediaStreamType.VideoPreview, new Guid("9C27891A-ED7A-40e1-88E8-B22727A024EE"), PropertyValue.CreateUInt32(1));
var resolutionMax = GetHighestResolution();
ImageWidth = resolutionMax.Width;
ImageHeight = resolutionMax.Height;
await m_mediaCapture.VideoDeviceController.SetMediaStreamPropertiesAsync(MediaStreamType.VideoPreview, resolutionMax);
m_PreviewVideoElement.Source = m_mediaCapture;
await AddEffectsAsync();
await m_mediaCapture.StartPreviewAsync();
await SetPreviewRotationAsync();
IsCaptureEnabled = true;
UpdateButtonState();
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
}
}
