private Task QueueFrameCapture(MediaCapture capture)
{
if (capture != this.mediaCapture)
{
return(Task.FromCanceled(new System.Threading.CancellationToken(true)));
}
var previewProperties = mediaCapture.VideoDeviceController.GetMediaStreamProperties(MediaStreamType.VideoPreview) as VideoEncodingProperties;
var videoFrame = new VideoFrame(BitmapPixelFormat.Bgra8, (int)previewProperties.Width, (int)previewProperties.Height);
return(mediaCapture.GetPreviewFrameAsync(videoFrame).AsTask().ContinueWith(preview => {
var currentFrame = preview.Result;
SoftwareBitmap previewFrame = currentFrame.SoftwareBitmap;
return this.Counter.CountItems(previewFrame).ContinueWith(count => {
return Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () => {
if (count.IsFaulted)
{
Debug.WriteLine("Unable to count items in frame.");
return;
}
LabelCount record = new LabelCount();
record.TimeStamp = DateTime.UtcNow;
record.Label = "Car";
record.Count = count.Result;
this.LabelCountDAO.Save(record).ContinueWith(t => { Debug.WriteLine($"Complete: Image count of {count.Result} sent to DB."); });
this.lblName.Text = count.Result.ToString();
}).AsTask().ContinueWith(display => {
return QueueFrameCapture(capture);
});
});
}));
}
public async Task Save(LabelCount labelCount)
{
Uri baseUri = new Uri(@"http://localhost:5000/leapvision/api/v1.0/labeled_objects");
var content = new StringContent(JsonConvert.SerializeObject(labelCount), Encoding.UTF8, "application/json");
try
{
var client = httpHandler.Value;
using (var message = await client.PostAsync(baseUri, content))
{
if (message != null)
{
message.EnsureSuccessStatusCode();
Debug.Write(message.StatusCode);
var response = await message.Content.ReadAsStringAsync();
}
}
}
catch (Exception e)
{
Debug.Write(e.InnerException.InnerException);
}
}