// Set up the TCP connection with the server and open a UDP socket
public void SetupClicked(string _videoName)
{
// Initialize the rtsp sequence number
rtspModel.ResetSequenceNumber();
rtspModel.UpdateSequenceNumber();
// Initialize the video file name
videoName = _videoName;
// Create an rtp model
rtpModel = new RtpModel();
// Signal the rtp model to create a local udp socket and get the server udp port number
serverUdpPort = rtpModel.CreateUDPSocket(serverIP);
try
{
// Send a setup request to the server
rtspModel.Setup(serverIP.ToString(), serverTcpPort, serverUdpPort, videoName);
// Receive the reply message from the server
string message = rtspModel.ReceiveReply();
// Extract the session number from the reply message
int sessionID = ExtractSessionID(message);
// Set the session ID number in the rtsp model
rtspModel.SetSessionID(sessionID);
// Update the view to display the correct buttons
view.DisplayPlay();
// Update the view to display the server response
view.UpdateServerResponsesTextBox(message);
// Update the view to display the name of the video file
view.UpdateInfoTextBox(videoName);
// Initialize the timer
timer = new System.Timers.Timer();
timer.AutoReset = false;
timer.Interval = 50;
timer.Elapsed += timer_Elapsed;
}
catch (Exception e)
{
MessageBox.Show("An error has occured. The server has likely been terminated, and the connection has been closed.");
// The server no longer exists
// Reset the view
view.Reset();
// Close the RTSP connection
rtspModel.CloseTcpSocket();
}
}
public UsedPortDialog(RtpModel _rtpModel, List <int> _usedPorts)
{
InitializeComponent();
usedPorts = _usedPorts;
rtpModel = _rtpModel;
// Load the ports that have already been used
foreach (int i in usedPorts)
{
textBox1.AppendText(i.ToString());
}
}
