public static Packet CreateRstPacketFor(ScanningOptions options, ushort targetPort)
{
TcpPacketFactory.RandomizeParameters();
EthernetLayer ethernetLayer = new EthernetLayer
{
Source = options.SourceMac,
Destination = options.TargetMac,
};
IpV4Layer ipV4Layer = new IpV4Layer
{
Source = options.SourceIP,
CurrentDestination = options.TargetIP,
Ttl = TcpPacketFactory.ttl,
Fragmentation = TcpPacketFactory.fragmentation,
Identification = TcpPacketFactory.identification
};
TcpLayer tcpLayer = new TcpLayer
{
SourcePort = sourcePort,
DestinationPort = targetPort,
SequenceNumber = TcpPacketFactory.sequence,
ControlBits = TcpControlBits.Reset,
Window = TcpPacketFactory.windowSize,
};
return(PacketBuilder.Build(DateTime.Now, ethernetLayer, ipV4Layer, tcpLayer));
}
private void DoScan(ScanningOptions options)
{
var masterDb = Sitecore.Configuration.Factory.GetDatabase("master");
ScanItem(options.RootPath);
void ScanItem(string path)
{
var rootContent = masterDb.GetItem(path);
if (rootContent == null)
{
return;
}
rootContent.Fields.ReadAll();
var includedFields = rootContent.Fields.Where(f =>
options.ScanFieldTypes.Contains(f.Type) && !string.IsNullOrEmpty(f.Type) && !f.Name.StartsWith("__")).ToArray();
CustomConsoleLogger.Log($"Reading content {rootContent.Paths.FullPath} found {includedFields.Length} fields", ConsoleColor.DarkMagenta);
var terms = includedFields.Select(f => f.Value).ToArray();
_termsRepository.SaveTerms(terms);
foreach (Item child in rootContent.Children)
{
ScanItem(child.Paths.FullPath);
}
}
Console.Write("Done");
}
/// <summary>
/// TestZXingCommand execute.
/// </summary>
/// <param name="arg"></param>
/// <returns></returns>
private async Task TestZXing(object arg)
{
DateTime creationTime = DateTime.Now;
ScannerPage scannerPage = new ScannerPage(ScanningOptions.ToModel());
scannerPage.Appearing += ScannerPage_Appearing;
scannerPage.Disappearing += ScannerPage_Disappearing;
//Add tap to focus.
TapGestureRecognizer tapToFocusGesture = new TapGestureRecognizer();
tapToFocusGesture.Tapped += (o, e) => scannerPage.SetFocus();
scannerPage.Overlay.GestureRecognizers.Add(tapToFocusGesture);
scannerPage.OnScanResult += (result) =>
{
// Stop scanning
scannerPage.IsScanning = false;
Barcode = result.Text;
BarcodeFormat = result.BarcodeFormat;
DateTime scannedTime = DateTime.Now;
TimeToScan = scannedTime - creationTime;
// Pop the page and show the result
Device.BeginInvokeOnMainThread(async() =>
{
await NavigationHelper.PopAsync();
});
};
// Navigate to our scanner page
await NavigationHelper.PushAsync(scannerPage);
}
public static Packet CreateRequestFor(ScanningOptions options)
{
EthernetLayer ethernetLayer = new EthernetLayer
{
Source = options.SourceMac,
Destination = options.TargetMac,
EtherType = EthernetType.Arp,
};
ArpLayer arpLayer = new ArpLayer
{
ProtocolType = EthernetType.IpV4,
Operation = ArpOperation.Request,
SenderHardwareAddress = options.SourceMac.GetBytesList().AsReadOnly(),
SenderProtocolAddress = options.SourceIP.GetBytesList().AsReadOnly(),
TargetHardwareAddress = options.TargetMac.GetBytesList().AsReadOnly(),
TargetProtocolAddress = options.TargetIP.GetBytesList().AsReadOnly(),
};
PacketBuilder builder = new PacketBuilder(ethernetLayer, arpLayer);
return(builder.Build(DateTime.Now));
}
public static Packet CreateSynPacketFor(ScanningOptions options, ushort targetPort)
{
EthernetLayer ethernetLayer = new EthernetLayer
{
Source = options.SourceMac,
Destination = options.TargetMac,
};
IpV4Layer ipV4Layer = new IpV4Layer
{
Source = options.SourceIP,
CurrentDestination = options.TargetIP,
Ttl = TcpPacketFactory.ttl,
Fragmentation = TcpPacketFactory.fragmentation,
};
TcpLayer tcpLayer = new TcpLayer
{
SourcePort = TcpPacketFactory.sourcePort,
DestinationPort = targetPort,
ControlBits = TcpControlBits.Synchronize,
Window = TcpPacketFactory.windowSize,
};
return(PacketBuilder.Build(DateTime.Now, ethernetLayer, ipV4Layer, tcpLayer));
}
public async Task StartScanningAsync(Action <ZXing.Result> scanCallback, MobileBarcodeScanningOptions options = null)
{
if (stopping)
{
var error = "Camera is closing";
OnScannerError?.Invoke(new[] { error });
return;
}
displayRequest.RequestActive();
isAnalyzing = true;
ScanCallback = scanCallback;
ScanningOptions = options ?? MobileBarcodeScanningOptions.Default;
topText.Text = TopText ?? string.Empty;
bottomText.Text = BottomText ?? string.Empty;
if (UseCustomOverlay)
{
gridCustomOverlay.Children.Clear();
if (CustomOverlay != null)
{
gridCustomOverlay.Children.Add(CustomOverlay);
}
gridCustomOverlay.Visibility = Visibility.Visible;
gridDefaultOverlay.Visibility = Visibility.Collapsed;
}
else
{
gridCustomOverlay.Visibility = Visibility.Collapsed;
gridDefaultOverlay.Visibility = Visibility.Visible;
}
// Find which device to use
var preferredCamera = await GetFilteredCameraOrDefaultAsync(ScanningOptions);
if (preferredCamera == null)
{
var error = "No camera available";
System.Diagnostics.Debug.WriteLine(error);
isMediaCaptureInitialized = false;
OnScannerError?.Invoke(new[] { error });
return;
}
if (preferredCamera.EnclosureLocation == null || preferredCamera.EnclosureLocation.Panel == Windows.Devices.Enumeration.Panel.Unknown)
{
// No information on the location of the camera, assume it's an external camera, not integrated on the device.
externalCamera = true;
}
else
{
// Camera is fixed on the device.
externalCamera = false;
// Only mirror the preview if the camera is on the front panel.
mirroringPreview = preferredCamera.EnclosureLocation.Panel == Windows.Devices.Enumeration.Panel.Front;
}
mediaCapture = new MediaCapture();
// Initialize the capture with the settings above
try
{
await mediaCapture.InitializeAsync(new MediaCaptureInitializationSettings
{
StreamingCaptureMode = StreamingCaptureMode.Video,
VideoDeviceId = preferredCamera.Id
});
isMediaCaptureInitialized = true;
}
catch (UnauthorizedAccessException)
{
System.Diagnostics.Debug.WriteLine("Denied access to the camera");
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine("Exception when init MediaCapture: {0}", ex);
}
if (!isMediaCaptureInitialized)
{
var error = "Unexpected error on Camera initialisation";
OnScannerError?.Invoke(new[] { error });
return;
}
// Set the capture element's source to show it in the UI
captureElement.Source = mediaCapture;
captureElement.FlowDirection = mirroringPreview ? FlowDirection.RightToLeft : FlowDirection.LeftToRight;
try
{
// Start the preview
await mediaCapture.StartPreviewAsync();
}
catch (Exception ex)
{
var error = "Unexpected error on Camera initialisation";
OnScannerError?.Invoke(new[] { error });
return;
}
if (mediaCapture.CameraStreamState == CameraStreamState.Streaming)
{
OnCameraInitialized?.Invoke();
}
// Get all the available resolutions for preview
var availableProperties = mediaCapture.VideoDeviceController.GetAvailableMediaStreamProperties(MediaStreamType.VideoPreview);
var availableResolutions = new List <CameraResolution>();
foreach (var ap in availableProperties)
{
var vp = (VideoEncodingProperties)ap;
System.Diagnostics.Debug.WriteLine("Camera Preview Resolution: {0}x{1}", vp.Width, vp.Height);
availableResolutions.Add(new CameraResolution {
Width = (int)vp.Width, Height = (int)vp.Height
});
}
CameraResolution previewResolution = null;
if (ScanningOptions.CameraResolutionSelector != null)
{
previewResolution = ScanningOptions.CameraResolutionSelector(availableResolutions);
}
if (availableResolutions == null || availableResolutions.Count < 1)
{
var error = "Camera is busy. Try to close all applications that use camera.";
OnScannerError?.Invoke(new[] { error });
return;
}
// If the user did not specify a resolution, let's try and find a suitable one
if (previewResolution == null)
{
// Loop through all supported sizes
foreach (var sps in availableResolutions)
{
// Find one that's >= 640x360 but <= 1000x1000
// This will likely pick the *smallest* size in that range, which should be fine
if (sps.Width >= 640 && sps.Width <= 1000 && sps.Height >= 360 && sps.Height <= 1000)
{
previewResolution = new CameraResolution
{
Width = sps.Width,
Height = sps.Height
};
break;
}
}
}
if (previewResolution == null)
{
previewResolution = availableResolutions.LastOrDefault();
}
if (previewResolution == null)
{
System.Diagnostics.Debug.WriteLine("No preview resolution available. Camera may be in use by another application.");
return;
}
MobileBarcodeScanner.Log("Using Preview Resolution: {0}x{1}", previewResolution.Width, previewResolution.Height);
// Find the matching property based on the selection, again
var chosenProp = availableProperties.FirstOrDefault(ap => ((VideoEncodingProperties)ap).Width == previewResolution.Width && ((VideoEncodingProperties)ap).Height == previewResolution.Height);
// Pass in the requested preview size properties
// so we can set them at the same time as the preview rotation
// to save an additional set property call
await SetPreviewRotationAsync(chosenProp);
// *after* the preview is setup, set this so that the UI layout happens
// otherwise the preview gets stuck in a funny place on screen
captureElement.Stretch = Stretch.UniformToFill;
await SetupAutoFocus();
var zxing = ScanningOptions.BuildBarcodeReader();
timerPreview = new Timer(async(state) =>
{
var delay = ScanningOptions.DelayBetweenAnalyzingFrames;
if (stopping || processing || !isAnalyzing ||
(mediaCapture == null || mediaCapture.CameraStreamState != Windows.Media.Devices.CameraStreamState.Streaming))
{
timerPreview.Change(delay, Timeout.Infinite);
return;
}
processing = true;
SoftwareBitmapLuminanceSource luminanceSource = null;
try
{
// Get preview
var frame = await mediaCapture.GetPreviewFrameAsync(videoFrame);
// Create our luminance source
luminanceSource = new SoftwareBitmapLuminanceSource(frame.SoftwareBitmap);
}
catch (Exception ex)
{
MobileBarcodeScanner.Log("GetPreviewFrame Failed: {0}", ex);
}
ZXing.Result result = null;
try
{
// Try decoding the image
if (luminanceSource != null)
{
result = zxing.Decode(luminanceSource);
}
}
catch (Exception ex)
{
MobileBarcodeScanner.Log("Warning: zxing.Decode Failed: {0}", ex);
}
// Check if a result was found
if (result != null && !string.IsNullOrEmpty(result.Text))
{
if (!ContinuousScanning)
{
delay = Timeout.Infinite;
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, async() => { await StopScanningAsync(); });
}
else
{
delay = ScanningOptions.DelayBetweenContinuousScans;
}
LastScanResult = result;
ScanCallback(result);
}
processing = false;
timerPreview.Change(delay, Timeout.Infinite);
}, null, ScanningOptions.InitialDelayBeforeAnalyzingFrames, Timeout.Infinite);
}
public async Task StartScanningAsync(Action <ZXing.Result> scanCallback, MobileBarcodeScanningOptions options = null)
{
if (stopping)
{
return;
}
isAnalyzing = true;
ScanCallback = scanCallback;
ScanningOptions = options ?? MobileBarcodeScanningOptions.Default;
topText.Text = TopText ?? string.Empty;
bottomText.Text = BottomText ?? string.Empty;
if (UseCustomOverlay)
{
gridCustomOverlay.Children.Clear();
if (CustomOverlay != null)
{
gridCustomOverlay.Children.Add(CustomOverlay);
}
gridCustomOverlay.Visibility = Visibility.Visible;
gridDefaultOverlay.Visibility = Visibility.Collapsed;
}
else
{
gridCustomOverlay.Visibility = Visibility.Collapsed;
gridDefaultOverlay.Visibility = Visibility.Visible;
}
// Find which device to use
var preferredCamera = await this.GetFilteredCameraOrDefaultAsync(ScanningOptions);
mediaCapture = new MediaCapture();
// Initialize the capture with the settings above
await mediaCapture.InitializeAsync(new MediaCaptureInitializationSettings()
{
StreamingCaptureMode = StreamingCaptureMode.Video,
VideoDeviceId = preferredCamera.Id
});
// Set the capture element's source to show it in the UI
captureElement.Source = mediaCapture;
// Start the preview
await mediaCapture.StartPreviewAsync();
// Get all the available resolutions for preview
var availableProperties = mediaCapture.VideoDeviceController.GetAvailableMediaStreamProperties(MediaStreamType.VideoPreview);
var availableResolutions = new List <CameraResolution>();
foreach (var ap in availableProperties)
{
var vp = (VideoEncodingProperties)ap;
System.Diagnostics.Debug.WriteLine("Camera Preview Resolution: {0}x{1}", vp.Width, vp.Height);
availableResolutions.Add(new CameraResolution {
Width = (int)vp.Width, Height = (int)vp.Height
});
}
CameraResolution previewResolution = null;
if (ScanningOptions.CameraResolutionSelector != null)
{
previewResolution = ScanningOptions.CameraResolutionSelector(availableResolutions);
}
// If the user did not specify a resolution, let's try and find a suitable one
if (previewResolution == null)
{
// Loop through all supported sizes
foreach (var sps in availableResolutions)
{
// Find one that's >= 640x360 but <= 1000x1000
// This will likely pick the *smallest* size in that range, which should be fine
if (sps.Width >= 640 && sps.Width <= 1000 && sps.Height >= 360 && sps.Height <= 1000)
{
previewResolution = new CameraResolution
{
Width = sps.Width,
Height = sps.Height
};
break;
}
}
}
if (previewResolution == null)
{
previewResolution = availableResolutions.LastOrDefault();
}
System.Diagnostics.Debug.WriteLine("Using Preview Resolution: {0}x{1}", previewResolution.Width, previewResolution.Height);
// Find the matching property based on the selection, again
var chosenProp = availableProperties.FirstOrDefault(ap => ((VideoEncodingProperties)ap).Width == previewResolution.Width && ((VideoEncodingProperties)ap).Height == previewResolution.Height);
// Set the selected resolution
await mediaCapture.VideoDeviceController.SetMediaStreamPropertiesAsync(MediaStreamType.VideoPreview, chosenProp);
await SetPreviewRotationAsync();
captureElement.Stretch = Stretch.UniformToFill;
// Get our preview properties
var previewProperties = mediaCapture.VideoDeviceController.GetMediaStreamProperties(MediaStreamType.VideoPreview) as VideoEncodingProperties;
// Setup a frame to use as the input settings
var destFrame = new VideoFrame(Windows.Graphics.Imaging.BitmapPixelFormat.Bgra8, (int)previewProperties.Width, (int)previewProperties.Height);
var zxing = ScanningOptions.BuildBarcodeReader();
timerPreview = new Timer(async(state) => {
var delay = ScanningOptions.DelayBetweenAnalyzingFrames;
if (stopping || processing || !isAnalyzing ||
(mediaCapture == null || mediaCapture.CameraStreamState != Windows.Media.Devices.CameraStreamState.Streaming))
{
timerPreview.Change(delay, Timeout.Infinite);
return;
}
processing = true;
SoftwareBitmapLuminanceSource luminanceSource = null;
try
{
// Get preview
var frame = await mediaCapture.GetPreviewFrameAsync(destFrame);
// Create our luminance source
luminanceSource = new SoftwareBitmapLuminanceSource(frame.SoftwareBitmap);
} catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine("GetPreviewFrame Failed: {0}", ex);
}
ZXing.Result result = null;
try
{
// Try decoding the image
if (luminanceSource != null)
{
result = zxing.Decode(luminanceSource);
}
}
catch (Exception ex)
{
}
// Check if a result was found
if (result != null && !string.IsNullOrEmpty(result.Text))
{
if (!ContinuousScanning)
{
delay = Timeout.Infinite;
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, async() => { await StopScanningAsync(); });
}
else
{
delay = ScanningOptions.DelayBetweenContinuousScans;
}
LastScanResult = result;
ScanCallback(result);
}
processing = false;
timerPreview.Change(delay, Timeout.Infinite);
}, null, ScanningOptions.InitialDelayBeforeAnalyzingFrames, Timeout.Infinite);
}
bool SetupCaptureSession()
{
var started = DateTime.UtcNow;
var availableResolutions = new List <CameraResolution> ();
var consideredResolutions = new Dictionary <NSString, CameraResolution> {
{ AVCaptureSession.Preset352x288, new CameraResolution {
Width = 352, Height = 288
} },
{ AVCaptureSession.PresetMedium, new CameraResolution {
Width = 480, Height = 360
} }, //480x360
{ AVCaptureSession.Preset640x480, new CameraResolution {
Width = 640, Height = 480
} },
{ AVCaptureSession.Preset1280x720, new CameraResolution {
Width = 1280, Height = 720
} },
{ AVCaptureSession.Preset1920x1080, new CameraResolution {
Width = 1920, Height = 1080
} }
};
// configure the capture session for low resolution, change this if your code
// can cope with more data or volume
session = new AVCaptureSession()
{
SessionPreset = AVCaptureSession.Preset640x480
};
// create a device input and attach it to the session
// var captureDevice = AVCaptureDevice.DefaultDeviceWithMediaType (AVMediaType.Video);
AVCaptureDevice captureDevice = null;
var devices = AVCaptureDevice.DevicesWithMediaType(AVMediaType.Video);
foreach (var device in devices)
{
captureDevice = device;
if (ScanningOptions.UseFrontCameraIfAvailable.HasValue &&
ScanningOptions.UseFrontCameraIfAvailable.Value &&
device.Position == AVCaptureDevicePosition.Front)
{
break; //Front camera successfully set
}
else if (device.Position == AVCaptureDevicePosition.Back && (!ScanningOptions.UseFrontCameraIfAvailable.HasValue || !ScanningOptions.UseFrontCameraIfAvailable.Value))
{
break; //Back camera succesfully set
}
}
if (captureDevice == null)
{
Console.WriteLine("No captureDevice - this won't work on the simulator, try a physical device");
if (overlayView != null)
{
this.AddSubview(overlayView);
this.BringSubviewToFront(overlayView);
}
return(false);
}
CameraResolution resolution = null;
// Find resolution
// Go through the resolutions we can even consider
foreach (var cr in consideredResolutions)
{
// Now check to make sure our selected device supports the resolution
// so we can add it to the list to pick from
if (captureDevice.SupportsAVCaptureSessionPreset(cr.Key))
{
availableResolutions.Add(cr.Value);
}
}
resolution = ScanningOptions.GetResolution(availableResolutions);
// See if the user selected a resolution
if (resolution != null)
{
// Now get the preset string from the resolution chosen
var preset = (from c in consideredResolutions
where c.Value.Width == resolution.Width &&
c.Value.Height == resolution.Height
select c.Key).FirstOrDefault();
// If we found a matching preset, let's set it on the session
if (!string.IsNullOrEmpty(preset))
{
session.SessionPreset = preset;
}
}
var input = AVCaptureDeviceInput.FromDevice(captureDevice);
if (input == null)
{
Console.WriteLine("No input - this won't work on the simulator, try a physical device");
if (overlayView != null)
{
this.AddSubview(overlayView);
this.BringSubviewToFront(overlayView);
}
return(false);
}
else
{
session.AddInput(input);
}
var startedAVPreviewLayerAlloc = PerformanceCounter.Start();
previewLayer = new AVCaptureVideoPreviewLayer(session);
PerformanceCounter.Stop(startedAVPreviewLayerAlloc, "Alloc AVCaptureVideoPreviewLayer took {0} ms.");
// //Framerate set here (15 fps)
// if (UIDevice.CurrentDevice.CheckSystemVersion (7, 0))
// {
// var perf1 = PerformanceCounter.Start ();
// NSError lockForConfigErr = null;
// captureDevice.LockForConfiguration (out lockForConfigErr);
// if (lockForConfigErr == null)
// {
// captureDevice.ActiveVideoMinFrameDuration = new CMTime (1, 10);
// captureDevice.UnlockForConfiguration ();
// }
// PerformanceCounter.Stop (perf1, "PERF: ActiveVideoMinFrameDuration Took {0} ms");
// }
// else
// previewLayer.Connection.VideoMinFrameDuration = new CMTime(1, 10);
var perf2 = PerformanceCounter.Start();
#if __UNIFIED__
previewLayer.VideoGravity = AVLayerVideoGravity.ResizeAspectFill;
#else
previewLayer.LayerVideoGravity = AVLayerVideoGravity.ResizeAspectFill;
#endif
previewLayer.Frame = new CGRect(0, 0, this.Frame.Width, this.Frame.Height);
previewLayer.Position = new CGPoint(this.Layer.Bounds.Width / 2, (this.Layer.Bounds.Height / 2));
layerView = new UIView(new CGRect(0, 0, this.Frame.Width, this.Frame.Height));
layerView.AutoresizingMask = UIViewAutoresizing.FlexibleWidth | UIViewAutoresizing.FlexibleHeight;
layerView.Layer.AddSublayer(previewLayer);
this.AddSubview(layerView);
ResizePreview(UIApplication.SharedApplication.StatusBarOrientation);
if (overlayView != null)
{
this.AddSubview(overlayView);
this.BringSubviewToFront(overlayView);
//overlayView.LayoutSubviews ();
}
PerformanceCounter.Stop(perf2, "PERF: Setting up layers took {0} ms");
var perf3 = PerformanceCounter.Start();
session.StartRunning();
PerformanceCounter.Stop(perf3, "PERF: session.StartRunning() took {0} ms");
var perf4 = PerformanceCounter.Start();
var videoSettings = NSDictionary.FromObjectAndKey(new NSNumber((int)CVPixelFormatType.CV32BGRA),
CVPixelBuffer.PixelFormatTypeKey);
// create a VideoDataOutput and add it to the sesion
output = new AVCaptureVideoDataOutput {
WeakVideoSettings = videoSettings
};
// configure the output
queue = new DispatchQueue("ZxingScannerView"); // (Guid.NewGuid().ToString());
var barcodeReader = ScanningOptions.BuildBarcodeReader();
outputRecorder = new OutputRecorder(this, img =>
{
var ls = img;
if (!IsAnalyzing)
{
return(false);
}
try
{
var perfDecode = PerformanceCounter.Start();
if (shouldRotatePreviewBuffer)
{
ls = ls.rotateCounterClockwise();
}
var result = barcodeReader.Decode(ls);
PerformanceCounter.Stop(perfDecode, "Decode Time: {0} ms");
if (result != null)
{
resultCallback(result);
return(true);
}
}
catch (Exception ex)
{
Console.WriteLine("DECODE FAILED: " + ex);
}
return(false);
});
output.AlwaysDiscardsLateVideoFrames = true;
output.SetSampleBufferDelegate(outputRecorder, queue);
PerformanceCounter.Stop(perf4, "PERF: SetupCamera Finished. Took {0} ms.");
session.AddOutput(output);
//session.StartRunning ();
var perf5 = PerformanceCounter.Start();
NSError err = null;
if (captureDevice.LockForConfiguration(out err))
{
if (ScanningOptions.DisableAutofocus)
{
captureDevice.FocusMode = AVCaptureFocusMode.Locked;
}
else
{
if (captureDevice.IsFocusModeSupported(AVCaptureFocusMode.ContinuousAutoFocus))
{
captureDevice.FocusMode = AVCaptureFocusMode.ContinuousAutoFocus;
}
else if (captureDevice.IsFocusModeSupported(AVCaptureFocusMode.AutoFocus))
{
captureDevice.FocusMode = AVCaptureFocusMode.AutoFocus;
}
}
if (captureDevice.IsExposureModeSupported(AVCaptureExposureMode.ContinuousAutoExposure))
{
captureDevice.ExposureMode = AVCaptureExposureMode.ContinuousAutoExposure;
}
else if (captureDevice.IsExposureModeSupported(AVCaptureExposureMode.AutoExpose))
{
captureDevice.ExposureMode = AVCaptureExposureMode.AutoExpose;
}
if (captureDevice.IsWhiteBalanceModeSupported(AVCaptureWhiteBalanceMode.ContinuousAutoWhiteBalance))
{
captureDevice.WhiteBalanceMode = AVCaptureWhiteBalanceMode.ContinuousAutoWhiteBalance;
}
else if (captureDevice.IsWhiteBalanceModeSupported(AVCaptureWhiteBalanceMode.AutoWhiteBalance))
{
captureDevice.WhiteBalanceMode = AVCaptureWhiteBalanceMode.AutoWhiteBalance;
}
if (UIDevice.CurrentDevice.CheckSystemVersion(7, 0) && captureDevice.AutoFocusRangeRestrictionSupported)
{
captureDevice.AutoFocusRangeRestriction = AVCaptureAutoFocusRangeRestriction.Near;
}
if (captureDevice.FocusPointOfInterestSupported)
{
captureDevice.FocusPointOfInterest = new PointF(0.5f, 0.5f);
}
if (captureDevice.ExposurePointOfInterestSupported)
{
captureDevice.ExposurePointOfInterest = new PointF(0.5f, 0.5f);
}
captureDevice.UnlockForConfiguration();
}
else
{
Console.WriteLine("Failed to Lock for Config: " + err.Description);
}
PerformanceCounter.Stop(perf5, "PERF: Setup Focus in {0} ms.");
return(true);
}
public void Start(ScanningOptions options)
{
CustomConsoleLogger.Log("Content Reader Started", ConsoleColor.Green);
DoScan(options);
}
bool SetupCaptureSession()
{
var started = DateTime.UtcNow;
// configure the capture session for low resolution, change this if your code
// can cope with more data or volume
session = new AVCaptureSession()
{
SessionPreset = AVCaptureSession.PresetPhoto
};
// create a device input and attach it to the session
// var captureDevice = AVCaptureDevice.DefaultDeviceWithMediaType (AVMediaType.Video);
captureDevice = null;
var devices = AVCaptureDevice.DevicesWithMediaType(AVMediaType.Video);
foreach (var device in devices)
{
captureDevice = device;
if (ScanningOptions.UseFrontCameraIfAvailable.HasValue &&
ScanningOptions.UseFrontCameraIfAvailable.Value &&
device.Position == AVCaptureDevicePosition.Front)
{
break; //Front camera successfully set
}
else if (device.Position == AVCaptureDevicePosition.Back && (!ScanningOptions.UseFrontCameraIfAvailable.HasValue || !ScanningOptions.UseFrontCameraIfAvailable.Value))
{
break; //Back camera succesfully set
}
}
if (captureDevice == null)
{
Console.WriteLine("No captureDevice - this won't work on the simulator, try a physical device");
if (overlayView != null)
{
this.AddSubview(overlayView);
this.BringSubviewToFront(overlayView);
}
return(false);
}
var input = AVCaptureDeviceInput.FromDevice(captureDevice);
if (input == null)
{
Console.WriteLine("No input - this won't work on the simulator, try a physical device");
if (overlayView != null)
{
this.AddSubview(overlayView);
this.BringSubviewToFront(overlayView);
}
return(false);
}
else
{
session.AddInput(input);
}
var startedAVPreviewLayerAlloc = PerformanceCounter.Start();
previewLayer = new AVCaptureVideoPreviewLayer(session);
PerformanceCounter.Stop(startedAVPreviewLayerAlloc, "Alloc AVCaptureVideoPreviewLayer took {0} ms.");
var perf2 = PerformanceCounter.Start();
#if __UNIFIED__
previewLayer.VideoGravity = AVLayerVideoGravity.ResizeAspectFill;
#else
previewLayer.LayerVideoGravity = AVLayerVideoGravity.ResizeAspectFill;
#endif
previewLayer.Frame = new CGRect(0, 0, this.Frame.Width, this.Frame.Height);
previewLayer.Position = new CGPoint(this.Layer.Bounds.Width / 2, (this.Layer.Bounds.Height / 2));
layerView = new UIView(new CGRect(0, 0, this.Frame.Width, this.Frame.Height));
layerView.AutoresizingMask = UIViewAutoresizing.FlexibleWidth | UIViewAutoresizing.FlexibleHeight;
layerView.Layer.AddSublayer(previewLayer);
this.AddSubview(layerView);
ResizePreview(UIApplication.SharedApplication.StatusBarOrientation);
if (overlayView != null)
{
this.AddSubview(overlayView);
this.BringSubviewToFront(overlayView);
//overlayView.LayoutSubviews ();
}
PerformanceCounter.Stop(perf2, "PERF: Setting up layers took {0} ms");
var perf3 = PerformanceCounter.Start();
session.StartRunning();
PerformanceCounter.Stop(perf3, "PERF: session.StartRunning() took {0} ms");
var perf4 = PerformanceCounter.Start();
var videoSettings = NSDictionary.FromObjectAndKey(new NSNumber((int)CVPixelFormatType.CV32BGRA),
CVPixelBuffer.PixelFormatTypeKey);
// create a VideoDataOutput and add it to the sesion
output = new AVCaptureVideoDataOutput {
WeakVideoSettings = videoSettings
};
// configure the output
queue = new DispatchQueue("ZxingScannerView"); // (Guid.NewGuid().ToString());
var barcodeReader = ScanningOptions.BuildBarcodeReader();
outputRecorder = new OutputRecorder(this, img =>
{
var ls = img;
if (!IsAnalyzing)
{
return(false);
}
try
{
var perfDecode = PerformanceCounter.Start();
if (shouldRotatePreviewBuffer)
{
ls = ls.rotateCounterClockwise();
}
var result = barcodeReader.Decode(ls);
PerformanceCounter.Stop(perfDecode, "Decode Time: {0} ms");
if (result != null)
{
resultCallback(result);
return(true);
}
}
catch (Exception ex)
{
Console.WriteLine("DECODE FAILED: " + ex);
}
return(false);
});
output.AlwaysDiscardsLateVideoFrames = true;
output.SetSampleBufferDelegate(outputRecorder, queue);
PerformanceCounter.Stop(perf4, "PERF: SetupCamera Finished. Took {0} ms.");
session.AddOutput(output);
//session.StartRunning ();
var perf5 = PerformanceCounter.Start();
NSError err = null;
if (captureDevice.LockForConfiguration(out err))
{
if (ScanningOptions.DisableAutofocus)
{
captureDevice.FocusMode = AVCaptureFocusMode.Locked;
}
else
{
if (captureDevice.IsFocusModeSupported(AVCaptureFocusMode.ContinuousAutoFocus))
{
captureDevice.FocusMode = AVCaptureFocusMode.ContinuousAutoFocus;
}
else if (captureDevice.IsFocusModeSupported(AVCaptureFocusMode.AutoFocus))
{
captureDevice.FocusMode = AVCaptureFocusMode.AutoFocus;
}
}
if (captureDevice.IsExposureModeSupported(AVCaptureExposureMode.ContinuousAutoExposure))
{
captureDevice.ExposureMode = AVCaptureExposureMode.ContinuousAutoExposure;
}
else if (captureDevice.IsExposureModeSupported(AVCaptureExposureMode.AutoExpose))
{
captureDevice.ExposureMode = AVCaptureExposureMode.AutoExpose;
}
if (captureDevice.IsWhiteBalanceModeSupported(AVCaptureWhiteBalanceMode.ContinuousAutoWhiteBalance))
{
captureDevice.WhiteBalanceMode = AVCaptureWhiteBalanceMode.ContinuousAutoWhiteBalance;
}
else if (captureDevice.IsWhiteBalanceModeSupported(AVCaptureWhiteBalanceMode.AutoWhiteBalance))
{
captureDevice.WhiteBalanceMode = AVCaptureWhiteBalanceMode.AutoWhiteBalance;
}
if (UIDevice.CurrentDevice.CheckSystemVersion(7, 0) && captureDevice.AutoFocusRangeRestrictionSupported)
{
captureDevice.AutoFocusRangeRestriction = AVCaptureAutoFocusRangeRestriction.Near;
}
if (captureDevice.FocusPointOfInterestSupported)
{
captureDevice.FocusPointOfInterest = new PointF(0.5f, 0.5f);
}
if (captureDevice.ExposurePointOfInterestSupported)
{
captureDevice.ExposurePointOfInterest = new PointF(0.5f, 0.5f);
}
captureDevice.UnlockForConfiguration();
}
else
{
Console.WriteLine("Failed to Lock for Config: " + err.Description);
}
PerformanceCounter.Stop(perf5, "PERF: Setup Focus in {0} ms.");
return(true);
}
private static void Main(string[] args)
{
options = new ScanningOptions();
SynPortScanner scanner = new SynPortScanner();
bool exit = false;
while (!exit)
{
Console.WriteLine("1 - Setup scanning options;");
Console.WriteLine(!scanner.IsBusy ?
"2 - Start scanning;" :
"2 - Stop scanning;");
Console.WriteLine("3 - Exit.");
int command = GetIntFromConsole(x => x >= 1 && x <= 3);
switch (command)
{
case 1:
PrintDevices();
int deviceNum = GetIntFromConsole(num => (num >= 1) && (num <= LivePacketDevice.AllLocalMachine.Count));
options.Device = LivePacketDevice.AllLocalMachine[deviceNum - 1];
Console.Write("IP address:");
options.TargetIP = GetIPFromConsole();
Console.Write("From port:");
options.StartPort = (ushort)GetIntFromConsole(x => x > 0 && x <= 65535);
Console.Write("To port:");
options.EndPort = (ushort)GetIntFromConsole(x => x > 0 && x <= 65535);
Console.WriteLine("Press Enter to continue...");
break;
case 2:
try
{
if (!scanner.IsBusy)
{
scanner.Scan(options);
}
else
{
scanner.StopCurrentScanning();
}
}
catch (ArgumentException exc)
{
Console.WriteLine(exc.Message);
}
break;
case 3:
exit = true;
Console.WriteLine("Bye-bye!");
break;
default:
Console.WriteLine("Wrong comand!");
break;
}
Console.ReadLine();
Console.Clear();
}
Console.WriteLine("Press Enter to close the application...");
}
