public ClientModel(int rand, MJPEGVideo video, int port)
{
// passed the port number, make the RTPmodel here
seqNo = 1;
ID = rand;
this.video = video;
_RTSPTimer = new RTSPTimer(rand);
_RTSPTimer.Interval = interv;
this._RTPModel = new RTPmodel(port);
}
public ClientModel(int rand, MJPEGVideo video, RTPmodel _RTPModel)
{
//passed an RTPmodel object
seqNo = 1;
ID = rand;
this.video = video;
_RTSPTimer = new RTSPTimer(rand);
_RTSPTimer.Interval = interv;
this._RTPModel = _RTPModel;
}
private void TimerEventProcessor(Object obj, ElapsedEventArgs args)
{
//Communications.
RTSPTimer time = (RTSPTimer)obj;
//check the ID of the timer Tick event
//create new RTPpacket using getFrame of the MJPEGVideo
for (int i = 0; i < _clientModel.Count; i++)
{
if (_clientModel.ElementAt(i).getId() == time.getId())
//if (time.getId() == _clientModel.getId()) //this instance is the correct timer to perform operation on
{
//Console.Write("Timer elapsed event for: " + _clientModel.getId().ToString() + "\r\n");
_clientModel.ElementAt(i).incrementSeqNo();
RTPmodel rtpModel = _clientModel.ElementAt(i).getRtpModel();
IPEndPoint EP = rtpModel.getIPEP();
//Console.Write("Sending packet to EndPoint: " + EP.ToString() + "\r\n");
MJPEGVideo video = _clientModel.ElementAt(i).getVideo();
//RTPpacket rtpPacket = new RTPpacket(video.GetNextFrame(), seqNo); //create a new RTPpacket
//byte[] someArray = new byte[15000];
byte[] arr = video.GetNextFrame();
RTPpacket rtppacket = new RTPpacket(arr, _clientModel.ElementAt(i).getSeqNo(), arr.Length);
//check if the RTP header should be displayed
if (_view.displayRtpHeader())
{
updateInfoBox(rtppacket.getHeader() + "\r\n");
}
//update the frame number
setFrameBox(_clientModel.ElementAt(i).getSeqNo());
rtpModel.sendStuff(rtppacket.getBytes());
//_RTPModel.getSocket().SendTo(rtppacket.getBytes(), EP);
}
}
//else
//Console.Write("other one is here");
}
private void Communications(object obj)
{
byte[] receiveBuffer = new byte[256];
Socket s = (Socket)obj;
//Console.Write("In Communications");
int rand = 0;
MJPEGVideo video = null;
bool needsSetup = true;
RTPmodel _RTPModel = null;
int n = 0;
ClientModel newClient = null;
try
{
//ClientModel _clientModel = new ClientModel();
while (needsSetup)
{
//byte[] receiveBuffer = new byte[100];
bool getOut = false;
int rc = s.Receive(receiveBuffer);
if (rc == 0)
{
break;
}
string str = System.Text.Encoding.UTF8.GetString(receiveBuffer, 0, rc);
_view.SetClientBox(str);
string cs = System.Text.Encoding.UTF8.GetString(receiveBuffer, 0, 4);
int session = 0;
//if(!needsSetup)
//session = Int32.Parse(System.Text.Encoding.UTF8.GetString(receiveBuffer, rc-13, rc));
if (cs == "SETU" && needsSetup) //if command is SETUP
{
Console.Write("in setup \r\n");
//make RTP object
string[] ss = str.Split(new char[] { '=' });
int port = Int32.Parse(ss[1]);
_RTPModel = new RTPmodel(port);
//create new MJPEGVideo instance
string name = System.Text.Encoding.UTF8.GetString(receiveBuffer, 28, 12);
video = new MJPEGVideo(name);
//generate random number to identify client
rand = GetUniqueRandom();
//_clientModel = new ClientModel(rand, video, port);
newClient = new ClientModel(rand, video, port);
_clientModel.Add(newClient);
n = cnt++;
//update the view server status box
updateInfoBox("The client " + _clientModel.ElementAt(n).getRtpModel().getIPEP().ToString() + " is setting up" + "\r\n");
_clientModel.ElementAt(n).getTimer().Elapsed += TimerEventProcessor;
needsSetup = false;
//response
//create lines of message
string requestLine = "RTSP/1.0 200 OK\r\n";
string cseqLine = "CSeq: 1\r\n";
string sessionLine = "Session: " + _clientModel.ElementAt(n).getId() + "\r\n";
string message = requestLine + cseqLine + sessionLine;
byte[] messageBytes = System.Text.Encoding.ASCII.GetBytes(message);
s.Send(messageBytes);
}
//else if (_clientModel.getId() == session) //otherwise the command is not SETUP
while (!needsSetup)
{
int rc2 = s.Receive(receiveBuffer);
if (rc == 0)
{
break;
}
string str2 = System.Text.Encoding.UTF8.GetString(receiveBuffer, 0, rc);
_view.SetClientBox(str2);
string cs2 = System.Text.Encoding.UTF8.GetString(receiveBuffer, 0, 4);
switch (cs2)
{
case "PLAY":
Console.Write("in play for client: " + _clientModel.ElementAt(n).getId() + "\r\n");
//send response FIRST
string requestLine2 = "RTSP/1.0 200 OK\r\n";
string cseqLine2 = "CSeq: 1\r\n";
string sessionLine2 = "Session: " + _clientModel.ElementAt(n).getId() + "\r\n";
string message2 = requestLine2 + cseqLine2 + sessionLine2;
byte[] message2Bytes = System.Text.Encoding.ASCII.GetBytes(message2);
s.Send(message2Bytes);
//update the view server status box
updateInfoBox("The client " + _clientModel.ElementAt(n).getRtpModel().getIPEP().ToString() + " is playing " + video.getName() + "\r\n");
//start client model's timer
_clientModel.ElementAt(n).startTimer();
break;
case "PAUS":
Console.Write("in pause for client: " + _clientModel.ElementAt(n).getId() + "\r\n");
//send response FIRST
string requestLine3 = "RTSP/1.0 200 OK\r\n";
string cseqLine3 = "CSeq: 1\r\n";
string sessionLine3 = "Session: " + rand + "\r\n";
string message3 = requestLine3 + cseqLine3 + sessionLine3;
byte[] message3Bytes = System.Text.Encoding.ASCII.GetBytes(message3);
s.Send(message3Bytes);
//update the view server status box
updateInfoBox("The client " + _clientModel.ElementAt(n).getRtpModel().getIPEP().ToString() + " paused " + video.getName() + "\r\n");
//stop timer
_clientModel.ElementAt(n).stopTimer();
break;
case "TEAR":
Console.Write("in teardown for client: " + _clientModel.ElementAt(n).getId() + "\r\n");
//send response FIRST
string requestLine4 = "RTSP/1.0 200 OK\r\n";
string cseqLine4 = "CSeq: 1\r\n";
string sessionLine4 = "Session: " + rand + "\r\n";
string message4 = requestLine4 + cseqLine4 + sessionLine4;
byte[] message4Bytes = System.Text.Encoding.ASCII.GetBytes(message4);
s.Send(message4Bytes);
//update the view server status box
updateInfoBox("The client " + _clientModel.ElementAt(n).getRtpModel().getIPEP().ToString() + " is tearing down " + video.getName() + "\r\n");
//stop timer
_clientModel.ElementAt(n).stopTimer();
//delete mjpeg instance
_clientModel.ElementAt(n).getVideo().disposeVideo();
this.usedIds.Remove(_clientModel.ElementAt(n).getId());
//_clientModel.RemoveAt(n);
needsSetup = true;
break;
default: //should never reach here
break;
}
}
if (getOut)
{
break;
}
//inside while loop
//receiveBuffer = new byte[128];
}
}
catch (SocketException err)
{
//MessageBox.Show("Error occurred on accepted socket: {0}",err.Message);
if (s != null)
{
s.Close();
}
}
finally
{
//if(rand == _clientModel.getId())
_clientModel.ElementAt(n).stopTimer();
s.Close();
}
}