// This method does almost everything.
void run(void) {
// redefined from Thread.
// Before using ccRTP you should learn something about other
// CommonC++ classes. We need InetHostAddress...
// Construct loopback address
InetHostAddress local_ip;
local_ip = "127.0.0.1";
// Is that correct?
if( ! local_ip ){
// this is equivalent to `! local_ip.isInetAddress()'
cerr << ": IP address is not correct!" << endl;
exit();
}
cout << local_ip.getHostname() <<
" is going to transmit audio to perself through " <<
local_ip << "..." << endl;
// ____Here comes the real RTP stuff____
// Construct the RTP socket.
socket = new RTPSession(local_ip,TRANSMITTER_BASE);
// Set up connection
socket->setSchedulingTimeout(10000);
if( !socket->addDestination(local_ip,RECEIVER_BASE) )
cerr << "I could not connect.";
socket->setPayloadFormat(StaticPayloadFormat(sptPCMU));
socket->startRunning();
cout << "The RTP queue service thread is ";
if( socket->isActive() )
cout << "active." << endl;
else
cerr << "not active." << endl;
cout << "Transmitting " << PACKET_SIZE
<< " octects long packets "
<< "every " << PERIOD << " milliseconds..." << endl;
unsigned char buffer[PACKET_SIZE];
int count=PACKET_SIZE;
// This will be useful for periodic execution
TimerPort::setTimer(PERIOD);
setCancel(cancelImmediate);
// This is the main loop, where packets are transmitted.
for( int i = 0 ; (!sendingfile || count > 0) ; i++ ){
count = ::read(audioinput,buffer,PACKET_SIZE);
if( count > 0 ){
// send an RTP packet, providing timestamp,
// payload type and payload.
socket->putData(PACKET_SIZE*i,buffer,
PACKET_SIZE);
}
cout << "." << flush;
// Let's wait for the next cycle
Thread::sleep(TimerPort::getTimer());
TimerPort::incTimer(PERIOD);
}
cout << endl << "I have got no more data to send. " <<endl;
}
