public Task <List <DetectionResult> > VerifyFacesAsync(string facesDir)
{
return(Task.Run(() =>
{
var client = new FaceServiceClient(FaceApiSubscriptionKey);
var originFace = GetOriginFaceId(client);
var faceFiles = Directory.GetFiles(facesDir);
List <DetectionResult> detectionResults = new List <DetectionResult>();
foreach (var faceFile in faceFiles)
{
Logable.WriteLog("Verifying " + faceFile);
try
{
var result = VerifyFace(client, originFace, faceFile);
if (result != null)
{
detectionResults.Add(result);
Logable.WriteLog("OK! " + result.Confidence);
}
else
{
Logable.WriteLog("NOT!");
}
}
catch (Exception ex)
{
Logable.WriteLog(ex.Message);
}
}
return detectionResults;
}));
}
private IEnumerable <FrameHighlight> DetectFaces(string subscriptionKey, string filePath)
{
Logable.WriteLog("Start face tracking");
VideoServiceClient client = new VideoServiceClient(subscriptionKey);
client.Timeout = TimeSpan.FromMinutes(10);
using (FileStream originalStream = new FileStream(filePath, FileMode.Open, FileAccess.Read))
{
// Creates a video operation of face tracking
Logable.WriteLog("Start uploading video");
Operation operation = client.CreateOperationAsync(originalStream, new FaceDetectionOperationSettings()).Result;
Logable.WriteLog("Uploading video done");
// Starts querying service status
OperationResult result = client.GetOperationResultAsync(operation).Result;
while (result.Status != OperationStatus.Succeeded && result.Status != OperationStatus.Failed)
{
Logable.WriteLog(string.Format("Server status: {0}, wait {1} seconds...", result.Status, QueryWaitTime.TotalSeconds));
Task.Delay(QueryWaitTime).Wait();
result = client.GetOperationResultAsync(operation).Result;
}
Logable.WriteLog("Finish processing with server status: " + result.Status);
// Processing finished, checks result
if (result.Status == OperationStatus.Succeeded)
{
// Gets output JSON
Logable.WriteLog("Downloading result done");
Debug.WriteLine(JsonHelper.FormatJson <FaceTracking>(result.ProcessingResult));
var frameHighlights = GetHighlights(result.ProcessingResult).ToList();
return(frameHighlights);
}
else
{
// Failed
Logable.WriteLog("Fail reason: " + result.Message);
}
}
return(null);
}
