public Frame(PendingItem item, List <InterestingObject> interesting)
{
Timestamp = item.TimeEnqueued; // handy to have it
Item = item;
Interesting = interesting;
}
// This function is used by the (semi) live data, not the UI
public async Task <AIResult> DetectObjectsAsync(Stream stream, PendingItem pending)
{
List <ImageObject> objects = null;
AIResult aiResult = new AIResult
{
ObjectsFound = objects,
Item = pending
};
using (HttpClient client = new HttpClient())
{
using (StreamContent content = new StreamContent(stream))
{
using (var request = new MultipartFormDataContent
{
{ content, "image", pending.PendingFile }
})
{
string url = string.Format("http://{0}:{1}/v1/vision/detection", _AILocation, _AIPort);
HttpResponseMessage output = null;
try
{
DateTime startPost = DateTime.Now;
pending.TimeDispatched = startPost;
output = await client.PostAsync(new Uri(url), request).ConfigureAwait(false);
pending.TimeProcessingByAI();
TimeSpan postTime = DateTime.Now - startPost;
}
catch (AggregateException ex)
{
throw new AiNotFoundException(url);
}
catch (Exception ex)
{
throw new AiNotFoundException(url);
}
if (!output.IsSuccessStatusCode)
{
throw new AiNotFoundException(url);
}
var jsonString = await output.Content.ReadAsStringAsync().ConfigureAwait(false);
output.Dispose();
TimeSpan processTime = pending.TimeProcessingByAI();
// Console.WriteLine("Process Time: " + processTime.TotalMilliseconds.ToString());
Response response = JsonConvert.DeserializeObject <Response>(jsonString);
if (response.Predictions != null && response.Predictions.Length > 0)
{
foreach (var result in response.Predictions)
{
if (objects == null)
{
objects = new List <ImageObject>();
}
result.Success = true;
// Windows likes Rectangles, so it is easier to create one now
result.ObjectRectangle = Rectangle.FromLTRB(result.X_min, result.Y_min, result.X_max, result.Y_max);
result.ID = Guid.NewGuid();
objects.Add(result);
string o = string.Format("{0}\t{1}\t{2}\t{3}\t{4}\t{5}", result.Label, result.Confidence, result.X_min, result.Y_min, result.X_max, result.Y_max);
Dbg.Trace(o);
}
}
// DebugWriter.Write(jsonString);
}
}
}
aiResult.ObjectsFound = objects;
return(aiResult);
}