private void StartSessionCompleted(IAsyncResult a)
{
try
{
if (a.AsyncState.Equals(1))
{
phoneService.EndStartSession(a);
cam.PreviewFrameAvailable += cam_PreviewFrameAvailable;
}
else
{
phoneService.BeginStartSession(DateTime.UtcNow.GetUnixTimestamp() - App.TimeDifference,
(int)resolution.Width, (int)resolution.Height, StartSessionCompleted, 1);
}
}
catch (Exception e)
{
Dispatcher.BeginInvoke(new Func <Exception, string>(exc => txtDebug.Text = exc.Message), e);
}
}
//Code for initialization, capture completed, image availability events; also setting the source for the viewfinder.
protected async override void OnNavigatedTo(NavigationEventArgs e) //当页面变为框架中的活动页面时调用。
{
var resolutions = PhotoCaptureDevice.GetAvailableCaptureResolutions(CameraSensorLocation.Back);
resolution = resolutions.Aggregate((x, y) => x.Height * x.Width < y.Height * y.Width ? x : y);
resolutionsListBox.ItemsSource = resolutions;
EndpointAddress address;
if (App.LocalAddress.StartsWith("192.168"))
{
address = new EndpointAddress("http://192.168.173.1:8000/phone");
}
else
{
address = new EndpointAddress("http://desk.gqqnbig.me:8000/phone");
}
factory = new ChannelFactory <IPhoneService>(new BasicHttpBinding(), address);
//factory.Opened += factory_Opened;
phoneService = factory.CreateChannel(address);
imageSeqeuenceNumber = 0;
if (PhotoCaptureDevice.AvailableSensorLocations.Contains(CameraSensorLocation.Back))
{
cam = await PhotoCaptureDevice.OpenAsync(CameraSensorLocation.Back, resolution);
phoneService.BeginStartSession(DateTime.UtcNow.GetUnixTimestamp() - App.TimeDifference, (int)resolution.Width, (int)resolution.Height,
StartSessionCompleted, 0);
cam.SetProperty(KnownCameraPhotoProperties.FlashMode, FlashState.Off);
//cam.SetProperty(KnownCameraPhotoProperties.SceneMode, CameraSceneMode.Landscape);
cam.SetProperty(KnownCameraGeneralProperties.AutoFocusRange, AutoFocusRange.Infinity);
cam.SetProperty(KnownCameraPhotoProperties.LockedAutoFocusParameters, AutoFocusParameters.Focus);
await cam.SetPreviewResolutionAsync(resolution);
viewfinderBrush.SetSource(cam);
//CameraButtons.ShutterKeyPressed += ShutterButton_Click;
}
else
{
MessageBox.Show("Camera is not available. Exiting...");
Application.Current.Terminate();
return;
}
//var videoCaptureDevice = await AudioVideoCaptureDevice.OpenAsync(CameraSensorLocation.Back, AudioVideoCaptureDevice.GetAvailableCaptureResolutions(CameraSensorLocation.Back).First());
//videoCaptureDevice.SetProperty(KnownCameraAudioVideoProperties.VideoTorchMode, VideoTorchMode.On);
//videoCaptureDevice.sta
PhoneApplicationService.Current.ApplicationIdleDetectionMode = IdleDetectionMode.Disabled;
//timer = new DispatcherTimer();
//timer.Interval = TimeSpan.FromSeconds(0.2);
//timer.Tick += (sender, e1) =>
//{
// ShutterButton_Click(null, null);
//};
//timer.Start();
}
