public static async Task <byte[]> TranscodeImageFile(byte[] data)
{
using (IRandomAccessStream stream = data.AsBuffer().AsStream().AsRandomAccessStream())
{
BitmapDecoder decoder = await BitmapDecoder.CreateAsync(stream);
var memStream = new Windows.Storage.Streams.InMemoryRandomAccessStream();
var outstream = new InMemoryRandomAccessStream();
BitmapEncoder encoder = await BitmapEncoder.CreateForTranscodingAsync(memStream, decoder);
encoder.BitmapTransform.ScaledWidth = 320;
encoder.BitmapTransform.ScaledHeight = 240;
await encoder.FlushAsync();
memStream.Seek(0);
await RandomAccessStream.CopyAsync(memStream, outstream);
memStream.Dispose();
var outbuff = new byte[outstream.Size];
await outstream.WriteAsync(outbuff.AsBuffer());
return(outbuff);
}
}
private async Task WriteImage()
{
if (currentImageIndex == -1)
{
return;
}
try
{
await CreateFolder();
StorageFile outputFile = await projectFolder.CreateFileAsync(filesNames.ElementAt(currentImageIndex), CreationCollisionOption.ReplaceExisting);
var stream = (await outputFile.OpenStreamForWriteAsync()).AsRandomAccessStream();
Guid encoderId;
if (filesNames.ElementAt(currentImageIndex).Contains(".jpg"))
{
encoderId = Windows.Graphics.Imaging.BitmapEncoder.JpegEncoderId;
}
var inputStream = await files.ElementAt(currentImageIndex).OpenStreamForReadAsync();
BitmapDecoder decoder = await BitmapDecoder.CreateAsync(inputStream.AsRandomAccessStream());
var inputProperties = decoder.BitmapProperties;
var memStream = new Windows.Storage.Streams.InMemoryRandomAccessStream();
BitmapEncoder encoder2 = await BitmapEncoder.CreateForTranscodingAsync(memStream, decoder);
WriteImageMetadata(encoder2, inputProperties);
await encoder2.FlushAsync();
memStream.Seek(0);
stream.Seek(0);
stream.Size = 0;
await RandomAccessStream.CopyAsync(memStream, stream);
memStream.Dispose();
stream.Dispose();
inputStream.Dispose();
if (latitude.Text != null)
{
await GeotagHelper.SetGeotagAsync(outputFile, myLocation);
}
}
catch (Exception err)
{
switch (err.HResult)
{
case unchecked ((int)0x88982F41): // WINCODEC_ERR_PROPERTYNOTSUPPORTED
// The file format does not support this property.
break;
default:
break;
}
}
}
public void LoadFromResource(string assemblyName, MvxResourcePath resourceName)
{
//Package.Current.InstalledLocation.GetFileAsync()
var path = resourceName.GetResourcePath(".", true);
// bitmap = new BitmapImage(new Uri("ms-appx:///" + assemblyName + "/" + path, UriKind.RelativeOrAbsolute));
var strm = Assembly.Load(new AssemblyName(assemblyName)).GetManifestResourceStream(path);
byte[] bts = new byte[strm.Length];
strm.Read(bts, 0, (int)strm.Length);
InMemoryRandomAccessStream ras = new InMemoryRandomAccessStream();
ras.GetOutputStreamAt(0).WriteAsync(bts.AsBuffer());
//strm.CopyToAsync(ras.AsStreamForWrite()).Wait();
ras.Seek(0);
bitmap = new BitmapImage();
bitmap.SetSource(ras);
ras.Dispose();
strm.Dispose();
}
// </SnippetCreateSoftwareBitmapFromSurface>
// <SnippetTranscodeImageFile>
private async void TranscodeImageFile(StorageFile imageFile)
{
using (IRandomAccessStream fileStream = await imageFile.OpenAsync(FileAccessMode.ReadWrite))
{
BitmapDecoder decoder = await BitmapDecoder.CreateAsync(fileStream);
var memStream = new Windows.Storage.Streams.InMemoryRandomAccessStream();
BitmapEncoder encoder = await BitmapEncoder.CreateForTranscodingAsync(memStream, decoder);
encoder.BitmapTransform.ScaledWidth = 320;
encoder.BitmapTransform.ScaledHeight = 240;
await encoder.FlushAsync();
memStream.Seek(0);
fileStream.Seek(0);
fileStream.Size = 0;
await RandomAccessStream.CopyAsync(memStream, fileStream);
memStream.Dispose();
}
}
private async Task<Image> DataToImage(Tile tile)
{
BitmapImage bitmapImage = new BitmapImage();
if (tile.IsSuccessd)
{
InMemoryRandomAccessStream randomAccessStream = new InMemoryRandomAccessStream();
DataWriter writer = new DataWriter(randomAccessStream.GetOutputStreamAt(0));
writer.WriteBytes(tile.MapImage.Data);
await writer.StoreAsync();
bitmapImage.SetSource(randomAccessStream);
writer.Dispose();
randomAccessStream.Dispose();
}
Image image = new Image()
{
Opacity = 1.0,
Tag = tile,
IsHitTestVisible = false,
Name = tile.TileKey,
Stretch = Stretch.Fill,
Source = bitmapImage
};
double resolution = tile.Resolution;
LayerContainer.SetBounds(image, GetTilesBounds(tile.Column, tile.Row, tile.Resolution));//计算该image的范围
return image;
}
private async void LoadImageFromUriAsync(Uri url)
{
HttpClient httpClient = new HttpClient();
HttpResponseMessage result = httpClient.GetAsync(url).Result;
byte[] array = await result.Content.ReadAsByteArrayAsync();
InMemoryRandomAccessStream inMemoryRandomAccessStream = new InMemoryRandomAccessStream();
DataWriter dataWriter = new DataWriter(inMemoryRandomAccessStream.GetOutputStreamAt(0uL));
dataWriter.WriteBytes(array);
await dataWriter.StoreAsync();
BitmapImage bitmapImage = new BitmapImage();
bitmapImage.SetSource(inMemoryRandomAccessStream);
this._image = bitmapImage;
httpClient.Dispose();
result.Dispose();
array = null;
inMemoryRandomAccessStream.Dispose();
dataWriter.Dispose();
bitmapImage = null;
}
public void Dispose()
{
internalStream.Dispose();
internalStream = null;
}
/// <summary>
/// Perform image capture from mediaCapture object
/// </summary>
/// <param name="cancelToken">
/// The cancel Token.
/// </param>
/// <returns>
/// Decoded barcode string.
/// </returns>
private async Task<Result> GetCameraImage(CancellationToken cancelToken)
{
if (cancelToken.IsCancellationRequested)
{
throw new OperationCanceledException(cancelToken);
}
imageStream = new InMemoryRandomAccessStream();
await capture.CapturePhotoToStreamAsync(encodingProps, imageStream);
await imageStream.FlushAsync();
var decoder = await BitmapDecoder.CreateAsync(imageStream);
byte[] pixels = (await decoder.GetPixelDataAsync(BitmapPixelFormat.Rgba8,
BitmapAlphaMode.Ignore,
new BitmapTransform(),
ExifOrientationMode.IgnoreExifOrientation,
ColorManagementMode.DoNotColorManage)).DetachPixelData();
const BitmapFormat format = BitmapFormat.RGB32;
imageStream.Dispose();
var result =
await
Task.Run(
() => barcodeReader.Decode(pixels, (int)decoder.PixelWidth, (int)decoder.PixelHeight, format),
cancelToken);
return result;
}
private async void wvMain_SendMessage(object sender, System.EventArgs e)
{
//try {
var ea = (ContentViewEventArgs)e;
if (ea.Type == "ContentLoading")
{
if (wvMain.Uri.Contains("about:blank")) return;
//prLoading.IsActive = true;
//ShowHideUriArea(0);
//sbShowLoading.Begin();
}
else if (ea.Type == "NavigationFailed")
{
X.Services.Extensions.ExtensionsService.Instance.SendMessage(ea, ExtensionType.WVNavigationFailed);
}
else if (ea.Type == "DOMContentLoaded")
{
X.Services.Extensions.ExtensionsService.Instance.SendMessage(ea.Uri, ExtensionType.WVDOMContentLoaded);
}
else if (ea.Type == "NavigationCompleted")
{
X.Services.Extensions.ExtensionsService.Instance.SendMessage(ea.Uri, ExtensionType.WVNavigationCompleted);
}
else if (ea.Type == "NavigationStarting")
{
try
{
BrowserVM vm = this.DataContext as BrowserVM;
if (vm.SelectedTab != null) vm.SelectedTab.Uri = ea.Uri.OriginalString;
X.Services.Extensions.ExtensionsService.Instance.SendMessage(ea.Uri, ExtensionType.WVNavigationStarting);
}
catch
{
X.Services.Extensions.ExtensionsService.Instance.SendMessage(ea.Uri, ExtensionType.WVNavigationFailed);
}
}
else if (ea.Type == "NewWindowRequested")
{
X.Services.Extensions.ExtensionsService.Instance.SendMessage(ea.Uri, ExtensionType.WVNewWindowRequest);
//args.Handled = true;
}
else if (ea.Type == "LongRunningScriptDetected")
{
X.Services.Extensions.ExtensionsService.Instance.SendMessage(null, ExtensionType.WVLongRunningScriptDetected);
}
else if (ea.Type == "ScriptNotify")
{
X.Services.Extensions.ExtensionsService.Instance.SendMessage(ea.CallingUri, ExtensionType.WVScriptNotify);
}
else if (ea.Type == "FoundFavicon")
{
BrowserVM vm = this.DataContext as BrowserVM;
vm.SelectedTab.FaviconUri = ea.Favicon.Replace(".svg", ".ico");
vm.SelectedTab.ExternalRaisePropertyChanged("FaviconUri");
//vm.ExposedRaisePropertyChanged("SelectedTab");
////and update local storage
//try
//{
// //App.DataService.Storage.UpdateFieldByUid(vm.SelectedTab.Uid.ToString(), "WebPageModel", "FaviconUri", ea.Favicon);
// var found = App.DataService.Storage.RetrieveByUid(vm.SelectedTab.Uid.ToString());
// var foundItem = found[0];
// foundItem.FaviconUri = ea.Favicon;
// App.DataService.Storage.Update(foundItem);
//}
//catch { }
}
else if (ea.Type == "LoadTimedout")
{
//sbHideLoading.Begin();
}
else if (ea.Type == "LoadCompleted")
{
X.Services.Extensions.ExtensionsService.Instance.SendMessage(ea.Uri, ExtensionType.WVLoadCompleted);
BrowserVM vm = this.DataContext as BrowserVM;
//todo: work out if this is necessary as this is causing a double postback
//if (vm.SelectedTab != null && vm.SelectedTab.Uri != e.Uri.AbsoluteUri) vm.UpdateSelectedTabManually(e.Uri);
if (vm.SelectedTab == null) return;
var uriHash = FlickrNet.UtilityMethods.MD5Hash(vm.SelectedTab.OriginalUri); // e.Uri);
if (!isCapturingImage) {
isCapturingImage = true;
await Task.Delay(1000);
if (vm.SelectedTab != null) {
//capture screenshot
using (InMemoryRandomAccessStream ms = new InMemoryRandomAccessStream())
{
//todo :drive this from the x.webview
await wvMain.Renderer?.CaptureThumbnail(ms);
//await wvMain.CapturePreviewToStreamAsync(ms);
//img: Banner 400 width
//ms.Seek(0);
await X.Services.Image.Service.Instance.GenerateResizedImageAsync(400, wvMain.ActualWidth, wvMain.ActualHeight, ms, uriHash + ".png", X.Services.Image.Service.location.MediumFolder);
//img: Thumbnail
ms.Seek(0);
await X.Services.Image.Service.Instance.GenerateResizedImageAsync(180, wvMain.ActualWidth, wvMain.ActualHeight, ms, uriHash + ".png", X.Services.Image.Service.location.ThumbFolder);
//img: Tile
ms.Seek(0);
await X.Services.Image.Service.Instance.GenerateResizedImageAsync(71, wvMain.ActualWidth, wvMain.ActualHeight, ms, uriHash + ".png", X.Services.Image.Service.location.TileFolder, 71);
ms.Seek(0);
await X.Services.Image.Service.Instance.GenerateResizedImageAsync(150, wvMain.ActualWidth, wvMain.ActualHeight, ms, uriHash + "-150x150.png", X.Services.Image.Service.location.TileFolder, 150);
ms.Seek(0);
await X.Services.Image.Service.Instance.GenerateResizedImageAsync(310, wvMain.ActualWidth, wvMain.ActualHeight, ms, uriHash + "-310x150.png", X.Services.Image.Service.location.TileFolder, 150);
ms.Seek(0);
await X.Services.Image.Service.Instance.GenerateResizedImageAsync(310, wvMain.ActualWidth, wvMain.ActualHeight, ms, uriHash + "-310x310.png", X.Services.Image.Service.location.TileFolder, 310);
//update tile
//var sxxxxx = Windows.Storage.ApplicationData.Current.LocalFolder;
X.Services.Tile.Service.UpdatePrimaryTile("X.Browser",
"ms-appdata:///local/tile/" + uriHash + "-150x150.png",
"ms-appdata:///local/tile/" + uriHash + "-310x150.png",
"ms-appdata:///local/tile/" + uriHash + "-310x310.png",
"ms-appdata:///local/tile/" + uriHash + ".png"
);
ms.Dispose();
}
//update thumb in VM
var fullUriHash = string.Concat(X.Services.Image.Service.Instance.MediumLocation, "\\", uriHash, ".png");
//if (!vm.SelectedTab.ThumbUri.Equals(fullUriHash)) {
vm.SelectedTab.ThumbUri = fullUriHash + "?v=" + Guid.NewGuid().ToString();
vm.SelectedTab.ExternalRaisePropertyChanged("ThumbUri");
//}
vm.SelectedTab.LastRefreshedDate = DateTime.UtcNow;
}
isCapturingImage = false;
}
}
else if (ea.Type == "SnapViewer")
{
if (!isCapturingImage) {
isCapturingImage = true;
var uriHash = FlickrNet.UtilityMethods.MD5Hash(vm.SelectedTab.OriginalUri); // e.Uri);
using (InMemoryRandomAccessStream ms = new InMemoryRandomAccessStream())
{
await wvMain.Renderer?.CaptureThumbnail(ms);
//img: Banner 400 width
//ms.Seek(0);
await X.Services.Image.Service.Instance.GenerateResizedImageAsync(400, wvMain.ActualWidth, wvMain.ActualHeight, ms, uriHash + ".png", X.Services.Image.Service.location.MediumFolder);
//img: Thumbnail
ms.Seek(0);
await X.Services.Image.Service.Instance.GenerateResizedImageAsync(180, wvMain.ActualWidth, wvMain.ActualHeight, ms, uriHash + ".png", X.Services.Image.Service.location.ThumbFolder);
//img: Tile
ms.Seek(0);
await X.Services.Image.Service.Instance.GenerateResizedImageAsync(71, wvMain.ActualWidth, wvMain.ActualHeight, ms, uriHash + ".png", X.Services.Image.Service.location.TileFolder, 71);
ms.Seek(0);
await X.Services.Image.Service.Instance.GenerateResizedImageAsync(150, wvMain.ActualWidth, wvMain.ActualHeight, ms, uriHash + "-150x150.png", X.Services.Image.Service.location.TileFolder, 150);
ms.Seek(0);
await X.Services.Image.Service.Instance.GenerateResizedImageAsync(310, wvMain.ActualWidth, wvMain.ActualHeight, ms, uriHash + "-310x150.png", X.Services.Image.Service.location.TileFolder, 150);
ms.Seek(0);
await X.Services.Image.Service.Instance.GenerateResizedImageAsync(310, wvMain.ActualWidth, wvMain.ActualHeight, ms, uriHash + "-310x310.png", X.Services.Image.Service.location.TileFolder, 310);
//update tile
//var sxxxxx = Windows.Storage.ApplicationData.Current.LocalFolder;
X.Services.Tile.Service.UpdatePrimaryTile("X.Browser",
"ms-appdata:///local/tile/" + uriHash + "-150x150.png",
"ms-appdata:///local/tile/" + uriHash + "-310x150.png",
"ms-appdata:///local/tile/" + uriHash + "-310x310.png",
"ms-appdata:///local/tile/" + uriHash + ".png"
);
ms.Dispose();
}
isCapturingImage = false;
}
}
//}
//catch (Exception ex){
// //todo : handle this BUT need to work out why this happens
//}
}
private async void Run()
{
await _HubConnection.Start();
var cam = new MediaCapture();
await cam.InitializeAsync(new MediaCaptureInitializationSettings()
{
MediaCategory = MediaCategory.Media,
StreamingCaptureMode = StreamingCaptureMode.Video
});
_Sensor.MotionDetected += async (int pinNum) =>
{
var stream = new InMemoryRandomAccessStream();
Stream imageStream = null;
try
{
await Task.Factory.StartNew(async () =>
{
_Sensor.IsActive = false;
await cam.CapturePhotoToStreamAsync(ImageEncodingProperties.CreateJpeg(), stream);
stream.Seek(0);
imageStream = stream.AsStream();
imageStream.Seek(0, SeekOrigin.Begin);
string imageUrl = await NotificationHelper.UploadImageAsync(imageStream);
switch (await OxfordHelper.IdentifyAsync(imageUrl))
{
case AuthenticationResult.IsOwner:
// open the door
MotorController.PWM(26);
break;
case AuthenticationResult.Unkown:
// send notification to the owner
NotificationHelper.NotifyOwnerAsync(imageUrl);
break;
case AuthenticationResult.None:
default:
break;
}
_Sensor.IsActive = true;
});
}
finally
{
if (stream != null)
stream.Dispose();
if (imageStream != null)
imageStream.Dispose();
}
};
}
private async Task LoadImageFromHttpResponse(HttpResponseMessage response, BitmapImage bitmap, string cacheKey)
{
if (response.IsSuccessStatusCode)
{
var stream = new InMemoryRandomAccessStream();
using (var content = response.Content)
{
await content.WriteToStreamAsync(stream);
}
await stream.FlushAsync();
stream.Seek(0);
await bitmap.Dispatcher.RunAsync(CoreDispatcherPriority.Low, async () =>
{
try
{
await bitmap.SetSourceAsync(stream);
// cache image asynchronously, after successful decoding
var task = Task.Run(async () =>
{
var buffer = new Windows.Storage.Streams.Buffer((uint)stream.Size);
stream.Seek(0);
await stream.ReadAsync(buffer, buffer.Capacity, InputStreamOptions.None);
stream.Dispose();
await Cache.SetAsync(cacheKey, buffer);
});
}
catch (Exception ex)
{
Debug.WriteLine("{0}: {1}", response.RequestMessage.RequestUri, ex.Message);
stream.Dispose();
}
});
}
else
{
Debug.WriteLine("{0}: {1}", response.RequestMessage.RequestUri, response.StatusCode);
}
}
/// <summary>
/// 문자열 이미지 uri를 받아서 이미지를 로컬에 저장하고 BitmapImage로 반환한다.
/// </summary>
/// <param name="imageUri"></param>
/// <returns></returns>
public async Task<BitmapImage> UriImageSaveLocalAsync(string imageUri, bool retry = true)
{
if (string.IsNullOrEmpty(imageUri) == true) return null;
//폴더 초기화 될때까지 대기
while (files == null)
{
await TaskEx.Delay(500);
}
//Stream
var iuri = new Uri(imageUri, UriKind.Absolute);
string filename = System.IO.Path.GetFileName(iuri.LocalPath);
//메모리 내용확인
var mbi = GetImage(filename);
if (mbi != null)
{
return mbi;
}
Stream imageStream = null; //기본 스트림
//IRandomAccessStream
InMemoryRandomAccessStream ras = new InMemoryRandomAccessStream();
//create bitmap
BitmapImage bi = new BitmapImage();
//폴더에 파일 존재 확인
if (files.Any(p => p.Name == filename))
{
var localFile = files.First(p => p.Name == filename);
bi.UriSource = new Uri(Path.Combine(ApplicationData.Current.TemporaryFolder.Path, localFile.Name));
AddImage(filename, bi);
//try
//{
// imageStream = await localFile.OpenStreamForReadAsync();
//}
//catch (Exception)
//{
// //파일 열때 에러가 발생하면, 파일이 존재하지 않기 때문일 수 있는..
// UpdateFolder();
// bi.UriSource = new Uri(imageUri);
// if (imageStream != null) imageStream.Dispose();
// if (ras != null) ras.Dispose();
// return bi;
//}
//await imageStream.CopyToAsync(ras.AsStreamForWrite());
//if (ras.Size > 0)
//{
// ras.Seek(0);
// await bi.SetSourceAsync(ras);
// //메모리에 저장
// AddImage(filename, bi);
//}
//else
//{
// //파일 이상인듯
// await localFile.DeleteAsync();
// UpdateFolder();
// //재귀호출
// if (retry == false)
// {
// if (imageStream != null) imageStream.Dispose();
// if (ras != null) ras.Dispose();
// return await UriImageSaveLocalAsync(imageUri, true);
// }
// else
// {
// bi.UriSource = new Uri(imageUri);
// if (imageStream != null) imageStream.Dispose();
// if (ras != null) ras.Dispose();
// return bi;
// }
//}
}
else
{
using (HttpClient hc = new HttpClient())
{
try
{
imageStream = await hc.GetStreamAsync(imageUri);
}
catch (Exception)
{
//네트워크 상태가 끊어졌을 때
bi.UriSource = new Uri(imageUri);
if (imageStream != null) imageStream.Dispose();
if (ras != null) ras.Dispose();
return bi;
}
//Stream -> IRandomAccessStream
await imageStream.CopyToAsync(ras.AsStreamForWrite());
if (ras.Size > 0)
{
try
{
BitmapDecoder decoder = await BitmapDecoder.CreateAsync(ras);
BitmapFrame frame = await decoder.GetFrameAsync(0);
//파일로 저장
var bitmap = new WriteableBitmap((int)frame.PixelWidth, (int)frame.PixelHeight);
ras.Seek(0);
await bitmap.SetSourceAsync(ras);
var saveImage = await bitmap.SaveToFile(ApplicationData.Current.TemporaryFolder, filename, CreationCollisionOption.OpenIfExists);
UpdateFolder();
//UriSource로 이미지 넣어주고
bi.UriSource = new Uri(Path.Combine(ApplicationData.Current.TemporaryFolder.Path, saveImage.Name));
//이미지로 변환
//ras.Seek(0);
//await bi.SetSourceAsync(ras);
//메모리에 저장
AddImage(filename, bi);
}
catch (Exception)
{
//이미지가 너무 커서 저장할 수 없을 경우 그냥 이미지 uri를 넣어서 던짐
bi.UriSource = new Uri(imageUri);
if (imageStream != null) imageStream.Dispose();
if (ras != null) ras.Dispose();
return bi;
}
}
else
{
//재귀호출
if (retry == false)
{
if (imageStream != null) imageStream.Dispose();
if (ras != null) ras.Dispose();
return await UriImageSaveLocalAsync(imageUri, true);
}
else
{
bi.UriSource = new Uri(imageUri);
if (imageStream != null) imageStream.Dispose();
if (ras != null) ras.Dispose();
return bi;
}
}
}
}
if(imageStream != null) imageStream.Dispose();
if(ras != null) ras.Dispose();
return bi;
}
private async Task ShowVehicleLocations()
{
var vehicleLocations = await searchVm.GetBusLocations();
while (vehicleCounter > 0)
{
SearchMap.MapElements.RemoveAt(SearchMap.MapElements.Count - 1);
vehicleCounter--;
}
var inboundBM = new WriteableBitmap(40, 40);
await inboundBM.SetSourceAsync(await RandomAccessStreamReference.CreateFromUri(new Uri("ms-appx:///Assets/Inbound.png")).OpenReadAsync());
var outboundBM = new WriteableBitmap(40, 40);
await outboundBM.SetSourceAsync(await RandomAccessStreamReference.CreateFromUri(new Uri("ms-appx:///Assets/Outbound.png")).OpenReadAsync());
foreach (Bus bus in vehicleLocations)
{
if (bus.direction.Equals("inbound"))
{
var rotatedImage = inboundBM.RotateFree(bus.busHeading, false);
var stream = new InMemoryRandomAccessStream();
await rotatedImage.ToStream(stream, BitmapEncoder.PngEncoderId);
var busMarker = new MapIcon
{
Image = RandomAccessStreamReference.CreateFromStream(stream),
CollisionBehaviorDesired = MapElementCollisionBehavior.RemainVisible,
Location = new Geopoint(new BasicGeoposition { Latitude = bus.latitude, Longitude = bus.longitude }),
NormalizedAnchorPoint = new Point(0.5, 0.5),
ZIndex = 99
};
SearchMap.MapElements.Add(busMarker);
await stream.FlushAsync();
stream.Dispose();
rotatedImage = null;
}
else if (bus.direction.Equals("outbound"))
{
var rotatedImage = outboundBM.RotateFree(bus.busHeading, false);
var stream = new InMemoryRandomAccessStream();
await rotatedImage.ToStream(stream, BitmapEncoder.PngEncoderId);
var busMarker = new MapIcon
{
Image = RandomAccessStreamReference.CreateFromStream(stream),
CollisionBehaviorDesired = MapElementCollisionBehavior.RemainVisible,
Location = new Geopoint(new BasicGeoposition { Latitude = bus.latitude, Longitude = bus.longitude }),
NormalizedAnchorPoint = new Point(0.5, 0.5),
ZIndex = 99
};
SearchMap.MapElements.Add(busMarker);
await stream.FlushAsync();
stream.Dispose();
rotatedImage = null;
}
vehicleCounter++;
}
inboundBM = null;
outboundBM = null;
}
private async void ScanButton(object sender, object e)
{
string result = null;
try
{
Waiter(true);
var tcs = new TaskCompletionSource<object>();
StackPanel sp = new StackPanel() { Margin = new Thickness(20) };
#if WINDOWS_PHONE
if (Device == null)
{
Windows.Foundation.Size initialResolution = new Windows.Foundation.Size(640, 480);
wbm = new WriteableBitmap(640, 480);
Device = await PhotoCaptureDevice.OpenAsync(CameraSensorLocation.Back, initialResolution);
Device.SetProperty(KnownCameraGeneralProperties.EncodeWithOrientation,
Device.SensorLocation == CameraSensorLocation.Back ?
Device.SensorRotationInDegrees : -Device.SensorRotationInDegrees);
Device.SetProperty(KnownCameraGeneralProperties.AutoFocusRange, AutoFocusRange.Macro);
Device.SetProperty(KnownCameraPhotoProperties.SceneMode, CameraSceneMode.Macro);
Device.SetProperty(KnownCameraPhotoProperties.FocusIlluminationMode, FocusIlluminationMode.Off);
}
Rectangle previewRect = new Rectangle() { Height = 480, Width = 360 };
VideoBrush previewVideo = new VideoBrush();
previewVideo.RelativeTransform = new CompositeTransform()
{
CenterX = 0.5,
CenterY = 0.5,
Rotation = (Device.SensorLocation == CameraSensorLocation.Back ?
Device.SensorRotationInDegrees : -Device.SensorRotationInDegrees)
};
previewVideo.SetSource(Device);
previewRect.Fill = previewVideo;
Grid combiner = new Grid() { Height = previewRect.Height, Width = previewRect.Width };
combiner.Children.Add(previewRect);
Grid.SetColumnSpan(previewRect, 3);
Grid.SetRowSpan(previewRect, 3);
int windowSize = 100;
combiner.RowDefinitions.Add(new RowDefinition() { Height = new GridLength(previewRect.Height / 2 - windowSize) });
combiner.RowDefinitions.Add(new RowDefinition() { Height = new GridLength(windowSize) });
combiner.RowDefinitions.Add(new RowDefinition() { Height = new GridLength(previewRect.Height / 2 - windowSize) });
combiner.ColumnDefinitions.Add(new ColumnDefinition() { Width = new GridLength(previewRect.Width / 2 - windowSize) });
combiner.ColumnDefinitions.Add(new ColumnDefinition() { Width = new GridLength(windowSize) });
combiner.ColumnDefinitions.Add(new ColumnDefinition() { Width = new GridLength(previewRect.Width / 2 - windowSize) });
var maskBrush = new SolidColorBrush(Color.FromArgb(80, 0, 0, 0));
Canvas v1 = new Canvas() { Background = maskBrush };
Canvas v2 = new Canvas() { Background = maskBrush };
Canvas v3 = new Canvas() { Background = maskBrush };
Canvas v4 = new Canvas() { Background = maskBrush };
combiner.Children.Add(v1); Grid.SetRow(v1, 0); Grid.SetColumnSpan(v1, 3);
combiner.Children.Add(v2); Grid.SetRow(v2, 2); Grid.SetColumnSpan(v2, 3);
combiner.Children.Add(v3); Grid.SetRow(v3, 1); Grid.SetColumn(v3, 0);
combiner.Children.Add(v4); Grid.SetRow(v4, 1); Grid.SetColumn(v4, 2);
sp.Children.Add(combiner);
BackgroundWorker bw = new BackgroundWorker();
DateTime last = DateTime.Now;
bw.WorkerSupportsCancellation = true;
bw.DoWork += async (s2, e2) =>
{
var reader = new BarcodeReader();
while (!bw.CancellationPending)
{
if (DateTime.Now.Subtract(last).TotalSeconds > 2)
{
await Device.FocusAsync();
last = DateTime.Now;
}
try
{
Device.GetPreviewBufferArgb(wbm.Pixels);
Debug.WriteLine(DateTime.Now.Millisecond);
var codeVal = reader.Decode(wbm);
if (codeVal != null)
{
result = codeVal.Text;
e2.Cancel = true;
tcs.TrySetResult(null);
}
}
catch (Exception ex)
{
Debug.WriteLine(ex.ToString());
}
}
};
bw.RunWorkerAsync();
#else
var cameras = await DeviceInformation.FindAllAsync(DeviceClass.VideoCapture);
if (cameras.Count < 1)
{
return;
}
var settings = new MediaCaptureInitializationSettings { VideoDeviceId = cameras.Last().Id };
var imageSource = new MediaCapture();
await imageSource.InitializeAsync(settings);
CaptureElement previewRect = new CaptureElement() { Width = 640, Height = 360 };
previewRect.Source = imageSource;
sp.Children.Add(previewRect);
await imageSource.StartPreviewAsync();
bool keepGoing = true;
Action a = null;
a = async () =>
{
if (!keepGoing) return;
var stream = new InMemoryRandomAccessStream();
await imageSource.CapturePhotoToStreamAsync(ImageEncodingProperties.CreateJpeg(), stream);
stream.Seek(0);
var tmpBmp = new WriteableBitmap(1, 1);
await tmpBmp.SetSourceAsync(stream);
var writeableBmp = new WriteableBitmap(tmpBmp.PixelWidth, tmpBmp.PixelHeight);
stream.Seek(0);
await writeableBmp.SetSourceAsync(stream);
Result _result = null;
var barcodeReader = new BarcodeReader
{
// TryHarder = true,
AutoRotate = true
};
try
{
_result = barcodeReader.Decode(writeableBmp);
}
catch (Exception ex)
{
Debug.WriteLine(ex.ToString());
}
stream.Dispose();
if (_result != null)
{
result = _result.Text;
Debug.WriteLine(_result.Text);
keepGoing = false;
tcs.TrySetResult(null);
}
else
{
var x = RunOnUIThread(a);
}
};
await RunOnUIThread(a);
#endif
CustomMessageBox messageBox = new CustomMessageBox()
{
Title = "Scan Tag",
Message = "",
Content = sp,
LeftButtonContent = "OK",
RightButtonContent = "Cancel",
IsFullScreen = false,
};
messageBox.Unloaded += (s2, e2) =>
{
tcs.TrySetResult(null);
};
messageBox.Show();
await tcs.Task;
messageBox.Dismiss();
#if WINDOWS_PHONE
bw.CancelAsync();
#else
keepGoing = false;
await imageSource.StopPreviewAsync();
#endif
Debug.WriteLine("result: '" + result + "'");
string loc = null;
string building = null;
string floor = null;
string room = null;
if (!string.IsNullOrEmpty(result))
{
var s = result.Split(new char[] { '?' }, 2);
if (s.Length == 2)
{
var paramList = s[1].Split('&')
.Select(p => p.Split(new char[] { '=' }, 2))
.Where(p => p.Length == 2);
loc = pick(paramList, "cp");
building = pick(paramList, "bld");
floor = pick(paramList, "flr");
room = pick(paramList, "rm");
}
}
GeoCoord? locVal = GeoCoord.Parse(loc);
if (!string.IsNullOrEmpty(building) && !string.IsNullOrEmpty(floor))
{
await ShowMap(RoomInfo.Parse(building + "/" + (room == null ? floor : room)), locVal);
}
}
finally
{
Waiter(false);
}
}
private async void Stream_Click1(object sender, RoutedEventArgs e)
{
byte[] startSequence = { 0, 0, 0, 1, 0x27, 0x4d };
var options = new PropertySet();
//options.Add("framerate", "25");
//options.Add("vcodec", "copy");
_ws = new StreamWebSocket();
await _ws.ConnectAsync(new Uri(wsuri.Text, UriKind.Absolute));
bool isStarted = false;
bool isCreated = false;
var stream = new Windows.Storage.Streams.InMemoryRandomAccessStream();
var output = stream.GetOutputStreamAt(0);
var writer = new DataWriter(output);
int maxdelay = 10;
int delay = maxdelay;
int index = 0;
DataReader reader = new DataReader(_ws.InputStream);
do
{
var loaded = await reader.LoadAsync(10 * 1024);
var buf = reader.ReadBuffer(loaded);
if (!isStarted)
{
isStarted = true;
var signature = buf.ToArray();
index = Helpers.FindSequence(signature, 0, startSequence);
if (index == -1)
{
Debug.WriteLine("signature not found, continuing");
continue;
}
buf = signature.AsBuffer(index, signature.Length - index);
Debug.WriteLine("buffer created");
//await output.WriteAsync(buf);
writer.WriteBuffer(buf);
}
else
{
//await output.WriteAsync(buf);
//await output.FlushAsync();
writer.WriteBuffer(buf);
}
await writer.StoreAsync();
if (delay > 0)
{
delay--;
Debug.Write("B");
//Debug.WriteLine(stream.Position);
continue;
}
//delay = maxdelay;
//Debug.Write(".");
try
{
//await output.WriteAsync(buf);
if (!isCreated)
{
isCreated = true;
//stream.Seek((ulong)0);
var decoder = FFmpegInterop.FFmpegInteropMSS.CreateFFmpegInteropMSSFromStream(
stream, false, false, options);
if (decoder == null)
{
Debug.WriteLine("decoder was null, will retry");
continue;
}
var source = decoder.GetMediaStreamSource();
source.Closed += Source_Closed;
source.Starting += Source_Starting;
source.SampleRequested += Source_SampleRequested;
source.SampleRendered += Source_SampleRendered;
//source.BufferTime = TimeSpan.FromSeconds(0.2);
media.SetMediaStreamSource(source);
media.Play();
}
}
catch (Exception err)
{
Debug.WriteLine(err.ToString());
stream.Dispose();
reader.Dispose();
return;
}
}while (true);
}
