// rtpsend
// Send RTP packets using ccRTP.
// Copyright (C) 2001,2002  Federico Montesino <fedemp@altern.org>
//  
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//  
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//  
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

#include <cstdlib>
#include <ccrtp/rtp.h>

#ifdef  CCXX_NAMESPACES
using namespace ost;
using namespace std;
#endif

/**
 * @brief This class sends an RTP Packet
 **/
class Sender: public RTPSession, public TimerPort {
public:
	Sender(const unsigned char* data, const InetHostAddress& ia, 
	       tpport_t port, uint32 tstamp, uint16 count):
		RTPSession(InetHostAddress("0.0.0.0")),
		packetsPerSecond(10)
	{
		uint32 timestamp = tstamp? tstamp : 0;
		
		cout << "My SSRC identifier is: " 
		     << hex << (int)getLocalSSRC() << endl;

		defaultApplication().setSDESItem(SDESItemTypeTOOL,
						 "rtpsend demo app.");
		setSchedulingTimeout(10000);
		setExpireTimeout(1000000);
		
		if ( !addDestination(ia,port) ) {
			cerr << "Could not connect" << endl;
			exit();
		}
		
		setPayloadFormat(StaticPayloadFormat(sptPCMU));
		startRunning();

		uint16 tstampInc = getCurrentRTPClockRate()/packetsPerSecond;
		uint32 period = 1000/packetsPerSecond;
		TimerPort::setTimer(period);
		for ( int i = 0; i < count ; i++ ) {
			putData(timestamp + i*tstampInc,
				data,strlen((char *)data) + 1);
			Thread::sleep(TimerPort::getTimer());
			TimerPort::incTimer(period);
		}
	}

private:
	const uint16 packetsPerSecond;
};

int
main(int argc, char *argv[])
{
	cout << "rtpsend..." << endl;

	if (argc != 6) { 
		cerr << "Syntax: " << "data host port timestamp count" << endl;
		exit(1);
	}

	Sender sender((unsigned char *)argv[1], InetHostAddress(argv[2]),
		      atoi(argv[3]), atoi(argv[4]), atoi(argv[5]));
	
	cout << "I have sent " << argv[5] 
	     << " RTP packets containing \"" << argv[1]
	     << "\", with timestamp " << argv[4]
	     << " to " << argv[2] << ":" << argv[3]
	     << endl;
	return 0;
}

/** EMACS **
 * Local variables:
 * mode: c++
 * c-basic-offset: 8
 * End:
 */