private void UpdateImage(CameraImageContext context, Image image)
{
if (!context.ImageSourceNeedsUpdate)
{
return;
}
var setImageTask = image.Dispatcher.RunAsync(
CoreDispatcherPriority.Normal,
async() =>
{
if (context.ImageDataUpdateInProgress)
{
return;
}
context.ImageDataUpdateInProgress = true;
context.ConvertedImage = SoftwareBitmap.Convert(
context.RawImage,
BitmapPixelFormat.Bgra8,
BitmapAlphaMode.Premultiplied);
context.ImageSourceNeedsUpdate = false;
var imageSource = new SoftwareBitmapSource();
await imageSource.SetBitmapAsync(
context.ConvertedImage);
image.Source = imageSource;
context.ImageDataUpdateInProgress = false;
});
}
public MainPage()
{
this.InitializeComponent();
_vlcLeftLeftContext = new CameraImageContext(BitmapPixelFormat.Gray8, 640, 480, true /* needsConversion */);
_vlcLeftFrontContext = new CameraImageContext(BitmapPixelFormat.Gray8, 640, 480, true /* needsConversion */);
_vlcRightFrontContext = new CameraImageContext(BitmapPixelFormat.Gray8, 640, 480, true /* needsConversion */);
_vlcRightRightContext = new CameraImageContext(BitmapPixelFormat.Gray8, 640, 480, true /* needsConversion */);
UpdateImages();
}
