public void loop()
{
bool done = false;
try
{
while (!done)
{
byte[] bytes = listener.Receive(ref inPoint);
//Console.WriteLine("Received Multicast from {0} : length {1}\n", listenAddress.ToString(), bytes.Length);
//Lets get to buisness now
rtp _rtp = new rtp(bytes, bytes.Length);
if (_rtp.RTP_verify())
{
//_rtp.RTP_check();
byte[] RTPPayload = _rtp.RTP_process();
TCPServer _tcp = new TCPServer("192.168.88.12", 1234, RTPPayload);
//Console.WriteLine("RTP Packet Length: " + bytes.Length);
//Console.WriteLine("RTP Payload Length: " + RTPPayload.Length);
}
//Lets get to buisness now
}
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
}
finally
{
listener.Close();
//sender.Close();
}
}
const byte P_MPGTS = 0x21; /* MPEG TS */
public bool RTP_check()
{
//int error = 9;
rtp _rtp = new rtp();
/* check if the buffer is an RTP packet
*
* @param buf buffer to analyze
* @len size of the buffer
* @param is_rtp variable to set to 1 if data is an RTP packet
*
* @return True if there was no error, False otherwise
*/
int rtp_version = 0;
int rtp_payload_type = 0;
if (len < RTP_MIN_SIZE)
{
Console.WriteLine("RTP_check: buffer size {0} is less than minimum {1}\n", (long)len, (long)RTP_MIN_SIZE);
return(false);
}
/* initial assumption: is NOT RTP */
_rtp.is_rtp = 0;
if (MPEG_TS_SIG == buf[0])
{
Console.WriteLine("MPEG-TS stream detected\n");
return(true);
}
rtp_version = (buf[0] & 0xC0) >> 6;
Debug.WriteLine("RTP Version: " + rtp_version);
if (RTP_VER2 != rtp_version)
{
Console.WriteLine("RTP_check: wrong RTP version {0} must be {1}\n", (int)rtp_version, (int)RTP_VER2);
return(false);
}
if (len < RTP_HDR_SIZE)
{
Console.WriteLine("RTP_check: header size is too small {0}\n", (long)len);
return(false);
}
_rtp.is_rtp = 1;
rtp_payload_type = (buf[1] & 0x7F);
Debug.WriteLine("RTP Payload Type: " + rtp_payload_type);
switch (rtp_payload_type)
{
case P_MPGA:
Console.WriteLine("RTP_check: {0} MPEG audio stream\n", (int)rtp_payload_type);
break;
case P_MPGV:
Console.WriteLine("RTP_check: {0} MPEG video stream\n", (int)rtp_payload_type);
break;
case P_MPGTS:
Console.WriteLine("RTP_check: {0} MPEG TS stream\n", (int)rtp_payload_type);
break;
default:
Console.WriteLine("RTP_check: unsupported RTP payload type {0}\n", (int)rtp_payload_type);
return(false);
}
return(true);
}
