public Webcam(Messenger messenger, string name, string path)
: base(messenger)
{
_folderPath = path;
Name = name;
RecordVideo = false;
FirstAlarm = true;
}
public void Connect(string address, int port)
{
if (_disposed)
throw new ObjectDisposedException(GetType().FullName);
try
{
_msgr = new Messenger(new TcpClient(address, port));
_msgr.SendMessage("CL:" + ((IPEndPoint)_msgr.TcpClient.Client.LocalEndPoint).Address.ToString());
_msgr.SendMessage("get-list");
_view.Status = "Connected to server " + address;
_view.IsConnected = true;
Listen();
}
catch
{
Disconnect();
_view.Status = "Failed to connect to server";
}
}
public Client(Messenger messenger, DevicePresenter presenter, string name)
: base(messenger)
{
_dvPresenter = presenter;
Name = name;
}
private void StreamVideo(ImageCodecInfo codecInfo, EncoderParameters encoderParams)
{
MemoryStream m = new MemoryStream(20000);
Bitmap image = null;
IntPtr ip = IntPtr.Zero;
Font fontOverlay = new Font("Times New Roman", 14, System.Drawing.FontStyle.Bold,
System.Drawing.GraphicsUnit.Point);
DateTime lastMotion = DateTime.Now;
int interval = 5;
_isRecording = false;
_player = new SoundPlayer();
_player.LoadCompleted += new System.ComponentModel.AsyncCompletedEventHandler((obj, arg) => _player.PlayLooping());
Task.Factory.StartNew(() =>
{
_device.Start();
while (_requested)
{
try
{
// capture image
ip = _device.GetBitMap();
image = new Bitmap(_device.Width, _device.Height, _device.Stride, System.Drawing.Imaging.PixelFormat.Format24bppRgb, ip);
image.RotateFlip(RotateFlipType.RotateNoneFlipY);
_currentSensor.ProcessFrame(ref image);
if (_currentSensor.IsAlarming)
{
if (!_isRecording && (DateTime.Now.Second % interval == 0))
_messenger.SendMessage("record");
lastMotion = DateTime.Now;
}
else
{
if (DateTime.Now.Subtract(lastMotion).Seconds > interval)
{
if (_isRecording)
{
_messenger.SendMessage("stop-record");
_isRecording = false;
}
if (_isAlarming)
{
_player.Stop();
_isAlarming = false;
}
}
}
// add text that displays date time to the image
image.AddText(fontOverlay, 10, 10, DateTime.Now.ToString());
// save it to jpeg using quality options
image.Save(m, codecInfo, encoderParams);
// send the jpeg image if server requests it
if (_messenger != null)
_messenger.SendMessage(m.GetBuffer(), MessageType.Image);
}
catch (SocketException)
{
_messenger.Dispose();
_messenger = null;
_requested = false;
}
catch { }
finally
{
// clean up
m.SetLength(0);
if (image != null)
image.Dispose();
if (ip != IntPtr.Zero)
{
Marshal.FreeCoTaskMem(ip);
ip = IntPtr.Zero;
}
}
}
_device.Pause();
_player.Stop();
_player.Dispose();
fontOverlay.Dispose();
disposeReady.Set();
});
}
private void Listen()
{
Task.Factory.StartNew(() =>
{
_port = _view.Port;
UdpClient client = new UdpClient(_port);
IPEndPoint remoteEP = new IPEndPoint(IPAddress.Any, 0);
_done = false;
while (!_done)
{
try
{
string[] messages = Encoding.ASCII.GetString(client.Receive(ref remoteEP)).Split(' ');
if (messages[0] == "discovery")
{
_messenger = new Messenger(new TcpClient(remoteEP.Address.ToString(), Convert.ToInt32(messages[1])));
_messenger.SendMessage("WC:" + Dns.GetHostName());
_view.Status = "Connected to server " + remoteEP.Address.ToString() + " : " + messages[1];
_requested = true;
StreamVideo(_codecInfo, _encoderParams);
MessageType type;
while (true)
{
byte[] buffer = _messenger.ReceiveMessage(out type);
ProcessMessage(buffer, type);
}
}
}
catch
{
_requested = false;
_messenger.Dispose();
_messenger = null;
_view.Status = "Server has disconnected";
}
}
client.Close();
});
}
public Device(Messenger messenger)
{
_msgr = messenger;
}
public Device(TcpClient client)
{
_msgr = new Messenger(client);
}
private void IdentifyDevice(Messenger msgr)
{
try
{
MessageType type;
msgr.TcpClient.ReceiveTimeout = 30000;
byte[] buffer = msgr.ReceiveMessage(out type);
msgr.TcpClient.ReceiveTimeout = 0;
if (type == MessageType.Command)
{
string id = Encoding.ASCII.GetString(buffer);
Device d = null;
if (id.StartsWith("WC:"))
{
Webcam w = new Webcam(msgr, id, _view.BasePath + @"\" + id.Substring(4));
w.Disconnected += OnDisconnect;
w.MotionDetected += OnMotionDetect;
w.Recorded += (source) => _view.Status = "Webcam " + source.Name + " started recording";
w.MotionStopped += (source) =>
{
((Webcam)source).StopRecording();
_view.Status = "Webcam " + source.Name + " stopped recording";
};
w.AddClient(this);
_view.AddedWebcam = w.Name;
_view.Status = "Webcam " + w.Name + " is now connected";
d = w;
}
else if (id.StartsWith("CL:"))
{
Client c = new Client(msgr, this, id);
c.Disconnected += OnDisconnect;
c.WebcamChanged += (source) => _view.Status = ((Client)source).EventArg;
_view.AddedClient = c.Name;
_view.Status = "Client " + c.Name + " is now connected";
d = c;
}
if (d == null)
msgr.Dispose();
else
{
_devices.AddOrUpdate(id, d, (key, value) =>
{
value.Dispose();
return d;
});
d.Listen();
}
}
}
catch { msgr.Dispose(); }
}
private void AcceptConnections()
{
Task.Factory.StartNew(() =>
{
while (_listening)
{
try
{
Messenger msgr = new Messenger(_listener.AcceptTcpClient());
Task.Factory.StartNew(() => IdentifyDevice(msgr));
}
catch (SocketException ex) { _view.Status = ex.Message; }
}
});
}
