public ImageProcessDataflow(Camera camera, int width, int height, IPEndPoint udpEndpoint, CancellationToken token)
{
var faceModelParams = new FaceModelParameters(AppDomain.CurrentDomain.BaseDirectory, true, false, false);
frameProducer = camera.CameraType == CameraType.Webcam
? new WebcamFrameProducer(int.Parse(camera.Id), width, height)
: (FrameProducer) new DirectShowFrameProducer(camera.Id, width, height);
cameraFps = new FpsDetector(token);
landmarkFps = new FpsDetector(token);
detectedFps = new FpsDetector(token);
udpSender = new UdpSender(udpEndpoint);
landmarkExtractor = new LandmarkExtractor(faceModelParams);
dataExtractor = new DataExtractor(faceModelParams);
var cancellationDataFlowOptions = new DataflowBlockOptions {
CancellationToken = token
};
DetectedDataBroadcast = new BroadcastBlock <DetectedData>(f => f, cancellationDataFlowOptions);
LandmarkDataBroadcast = new BroadcastBlock <LandmarkData>(f => f, cancellationDataFlowOptions);
BitmapBroadcast = new BroadcastBlock <WriteableBitmap>(f => f, cancellationDataFlowOptions);
FrameDataBroadcast = new BroadcastBlock <FrameData>(f => f, cancellationDataFlowOptions);
var bitmapBlock = new TransformBlock <FrameData, WriteableBitmap>(frm => bitmapTransformer.ConvertToWritableBitmap(frm.Frame), new ExecutionDataflowBlockOptions
{
CancellationToken = token,
BoundedCapacity = 1,
TaskScheduler = TaskScheduler.FromCurrentSynchronizationContext()
});
var landmarkBlock = new TransformBlock <FrameData, LandmarkData>(x => landmarkExtractor.DetectLandmarks(x), new ExecutionDataflowBlockOptions
{
CancellationToken = token,
BoundedCapacity = 1,
});
var dataDetectorBlock = new TransformBlock <LandmarkData, DetectedData>(ld => dataExtractor.ExtractData(ld), new ExecutionDataflowBlockOptions
{
CancellationToken = token,
BoundedCapacity = 1
});
var udpBlock = new ActionBlock <DetectedData>(d => udpSender.SendPoseData(d.Pose), new ExecutionDataflowBlockOptions
{
CancellationToken = token,
BoundedCapacity = 1
});
var executionDataFlowOptions = new ExecutionDataflowBlockOptions {
CancellationToken = token
};
var cameraFpsBlock = new ActionBlock <FrameData>(_ => cameraFps.AddFrame(), executionDataFlowOptions);
var landmarkFpsBlock = new ActionBlock <LandmarkData>(_ => landmarkFps.AddFrame(), executionDataFlowOptions);
var detectedFpsBlock = new ActionBlock <DetectedData>(_ => detectedFps.AddFrame(), executionDataFlowOptions);
FrameDataBroadcast.LinkTo(bitmapBlock);
FrameDataBroadcast.LinkTo(cameraFpsBlock);
bitmapBlock.LinkTo(BitmapBroadcast);
FrameDataBroadcast.LinkTo(landmarkBlock);
landmarkBlock.LinkTo(LandmarkDataBroadcast);
LandmarkDataBroadcast.LinkTo(landmarkFpsBlock);
LandmarkDataBroadcast.LinkTo(dataDetectorBlock, l => l.DetectionSucceeded);
dataDetectorBlock.LinkTo(DetectedDataBroadcast);
DetectedDataBroadcast.LinkTo(detectedFpsBlock);
DetectedDataBroadcast.LinkTo(udpBlock);
//Start producing frames
Task.Factory.StartNew(() => frameProducer.ReadFrames(FrameDataBroadcast), token,
TaskCreationOptions.LongRunning, TaskScheduler.Default);
}