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//
// Copyright (c) Microsoft. All rights reserved.
// Licensed under the MIT license.
//
// Microsoft Cognitive Services: http://www.microsoft.com/cognitive
//
// Microsoft Cognitive Services Github:
// https://github.com/Microsoft/Cognitive
//
// Copyright (c) Microsoft Corporation
// All rights reserved.
//
// MIT License:
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED ""AS IS"", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using VideoFrameAnalyzer;
using Microsoft.ProjectOxford.Face;
using Microsoft.ProjectOxford.Face.Contract;
namespace BasicConsoleSample
{
internal class Program
{
private static void Main(string[] args)
{
// Create grabber.
FrameGrabber<Face[]> grabber = new FrameGrabber<Face[]>();
// Create Face API Client.
FaceServiceClient faceClient = new FaceServiceClient("<subscription key>");
// Set up a listener for when we acquire a new frame.
grabber.NewFrameProvided += (s, e) =>
{
Console.WriteLine("New frame acquired at {0}", e.Frame.Metadata.Timestamp);
};
// Set up Face API call.
grabber.AnalysisFunction = async frame =>
{
Console.WriteLine("Submitting frame acquired at {0}", frame.Metadata.Timestamp);
// Encode image and submit to Face API.
return await faceClient.DetectAsync(frame.Image.ToMemoryStream(".jpg"));
};
// Set up a listener for when we receive a new result from an API call.
grabber.NewResultAvailable += (s, e) =>
{
if (e.TimedOut)
Console.WriteLine("API call timed out.");
else if (e.Exception != null)
Console.WriteLine("API call threw an exception.");
else
Console.WriteLine("New result received for frame acquired at {0}. {1} faces detected", e.Frame.Metadata.Timestamp, e.Analysis.Length);
};
// Tell grabber when to call API.
// See also TriggerAnalysisOnPredicate
grabber.TriggerAnalysisOnInterval(TimeSpan.FromMilliseconds(3000));
// Start running in the background.
grabber.StartProcessingCameraAsync().Wait();
// Wait for keypress to stop
Console.WriteLine("Press any key to stop...");
Console.ReadKey();
// Stop, blocking until done.
grabber.StopProcessingAsync().Wait();
}
}
}