private void ItcClean(string msg)
{
try
{
MessageComing?.Invoke(msg, true);
if (uhat != null)
{
uhat.Stop();
}
if (iTcpClient != null)
{
if (iNetworkStream != null)
{
//set session stat to 0
byte[] sendBytes = Encoding.Default.GetBytes("session set " + sessionId + "\tSTAT=0");
iNetworkStream.Write(sendBytes, 0, sendBytes.Length);
iNetworkStream.Flush();
byte[] recvBytes = new byte[iTcpClient.ReceiveBufferSize];
int numBytesRecv = iNetworkStream.Read(recvBytes, 0, iTcpClient.ReceiveBufferSize);
string recvStr = Encoding.Default.GetString(recvBytes, 0, numBytesRecv);
//remove session
sendBytes = Encoding.Default.GetBytes("session rm " + sessionId);
iNetworkStream.Write(sendBytes, 0, sendBytes.Length);
iNetworkStream.Flush();
recvBytes = new byte[iTcpClient.ReceiveBufferSize];
numBytesRecv = iNetworkStream.Read(recvBytes, 0, iTcpClient.ReceiveBufferSize);
recvStr = Encoding.Default.GetString(recvBytes, 0, numBytesRecv);
//quit
sendBytes = Encoding.Default.GetBytes("quit");
iNetworkStream.Write(sendBytes, 0, sendBytes.Length);
iNetworkStream.Flush();
iTcpClient.Close();
iNetworkStream.Close();
}
else
{
iTcpClient.Close();
}
}
if (iFileStream != null)
{
iFileStream.Close();
}
if (iUdpClient != null)
{
iUdpClient.Close();
}
}
catch { }
}
private void ItcPrepare()
{
try
{
//initiate the tcp connection
iTcpClient = new TcpClient(_ipAddr, 8000);
iNetworkStream = iTcpClient.GetStream();
iNetworkStream.ReadTimeout = 1000;
iNetworkStream.WriteTimeout = 1000;
iFileStream = new FileStream(_filePath, FileMode.Open, FileAccess.Read);
iUdpClient = new UdpClient(_ipAddr, 15001);
AnalyzeMp3File(ref iFileStream, out frameSize, out int frameLength);
if (frameSize < 1 || frameLength < 1)
{
throw new Exception("Invalid mp3 file.");
}
string recvStr = "";
recvStr = TcpRequest("logon 0\t" + _username + Convert.ToChar("\t") + _password);
if (recvStr != "000 1\n" && recvStr != "000 0\n")
{
throw new Exception("Authentication failed.");
}
//get service stat
recvStr = TcpRequest("service stat");
if (recvStr != "000 1\n" && recvStr != "000 0\n")
{
throw new Exception("Unknown service status.");
}
//create an session
recvStr = TcpRequest("session new test\t65794\t400\t1");
//000 XXXX\n
if (!recvStr.StartsWith("000 ") || !recvStr.EndsWith("\n"))
{
throw new Exception("Request session id failed.");
}
sessionId = recvStr.Split(new char[] { Convert.ToChar(" "), Convert.ToChar("\n") })[1];
Debug.Print("Session ID = " + sessionId);
//add _terminals to the session
recvStr = TcpRequest("session add_term " + sessionId + "," + _terminals);
if (recvStr != "000 \n")
{
throw new Exception("Unexpected reply while adding _terminals.");
}
//set the session stat to 1
recvStr = TcpRequest("session set " + sessionId + "\tSTAT=1");
if (recvStr != "000 \n")
{
throw new Exception("Unexpected reply while enabling session.");
}
//set the _volume of session
recvStr = TcpRequest("session playvol " + sessionId + "," + _volume.ToString() + ",");
if (recvStr != "000 \n")
{
throw new Exception("Unexpected reply while setting _volume.");
}
InitUdpBuffHead(sessionId);
//set up udp timer
uhat = new UltraHighAccurateTimer
{
Interval = frameLength
};
uhat.tick += UdpClock_Elapsed;
uhat.Start();
MessageComing?.Invoke("OK: Playing...", false);
}
catch (SocketException)
{
ItcClean("Not Ready: Connection error.");
}
catch (Exception ex)
{
ItcClean("Not Ready: " + ex.Message);
}
}
