ccrtptest.cpp

// test ccRTP functionality
// Copyright (C) 2004 Federico Montesino Pouzols <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


class PacketsPattern
{
public:
        inline const InetHostAddress&
        getDestinationAddress() const
        { return destinationAddress; }

        inline const tpport_t
        getDestinationPort() const
        { return destinationPort; }

        uint32
        getPacketsNumber() const
        { return packetsNumber; }

        const unsigned char*
        getPacketData(uint32 i)
        { return data; }
        
        const size_t
        getPacketSize(uint32 i)
        { return packetsSize; }

private:
        static const InetHostAddress destinationAddress;
        static const uint16 destinationPort = 34566;
        static const uint32 packetsNumber = 100;
        static const uint32 packetsSize = 100;
        static unsigned char data[65535];
};

const InetHostAddress PacketsPattern::destinationAddress = 
InetHostAddress("localhost");
unsigned char PacketsPattern::data[65535];

PacketsPattern pattern;

class
Test
{
public:
        virtual int
        doTest() = 0;
};

class
SendPacketTransmissionTest : public Test, public Thread, public TimerPort
{
public:
        void
        run()
        {
                doTest();
        }

        int doTest()
        {
                // should be valid?
                //RTPSession tx();
                RTPSession tx(InetHostAddress("localhost"));
                tx.setSchedulingTimeout(10000);
                tx.setExpireTimeout(1000000);
                
                tx.startRunning();
                
                tx.setPayloadFormat(StaticPayloadFormat(sptPCMU));
                if ( !tx.addDestination(pattern.getDestinationAddress(),
                                        pattern.getDestinationPort()) ) {
                return 1;
                }
                
                // 50 packets per second (packet duration of 20ms)
                uint32 period = 20;
                uint16 inc = tx.getCurrentRTPClockRate()/50;
                TimerPort::setTimer(period);
                for ( uint32 i = 0; i < pattern.getPacketsNumber(); i++ ) {
                        tx.putData(i*inc,
                                   pattern.getPacketData(i),
                                   pattern.getPacketSize(i));
                        Thread::sleep(TimerPort::getTimer());
                        TimerPort::incTimer(period);
                }
                return 0;
        }
};


class
RecvPacketTransmissionTest : public Test, public Thread
{
public:
        void
        run()
        {
                doTest();
        }

        int
        doTest()
        {               
                RTPSession rx(pattern.getDestinationAddress(),
                              pattern.getDestinationPort());

                rx.setSchedulingTimeout(10000);
                rx.setExpireTimeout(1000000);
                
                rx.startRunning();
                rx.setPayloadFormat(StaticPayloadFormat(sptPCMU));
                // arbitrary number of loops
                for ( int i = 0; i < 500 ; i++ ) {
                        const AppDataUnit* adu;
                        while ( (adu = rx.getData(rx.getFirstTimestamp())) ) {

                                delete adu;
                        }
                        Thread::sleep(7);
                }
                return 0;
        }
};

class
MiscTest : public Test, public Thread, public TimerPort
{
        void
        run()
        {
                doTest();
        }

        int
        doTest()
        {
                const uint32 NSESSIONS = 10;
                RTPSession rx(pattern.getDestinationAddress(),pattern.getDestinationPort());
                RTPSession **tx = new RTPSession* [NSESSIONS];
                for ( uint32 i = 0; i < NSESSIONS; i++ ) {
                        tx[i] = new RTPSession(InetHostAddress("localhost"));
                }
                for ( uint32 i = 0; i  < NSESSIONS; i++) {
                        tx[i]->setSchedulingTimeout(10000);
                        tx[i]->setExpireTimeout(1000000);
                        tx[i]->setPayloadFormat(StaticPayloadFormat(sptPCMU));
                        if ( !tx[i]->addDestination(pattern.getDestinationAddress(),
                                                    pattern.getDestinationPort()) ) {
                                return 1;
                        }
                }

                rx.setPayloadFormat(StaticPayloadFormat(sptPCMU));
                rx.setSchedulingTimeout(5000);
                rx.setExpireTimeout(10000000); // 10 seconds!
                rx.startRunning();

                for ( uint32 i = 0; i  < NSESSIONS; i++) {
                        tx[i]->startRunning();
                }
                uint32 period = 20;
                TimerPort::setTimer(period);
                for ( uint32 i = 0; i < pattern.getPacketsNumber(); i++ ) {
                        if ( i == 70 ) {
                                RTPApplication &app = defaultApplication();
                                app.setSDESItem(SDESItemTypeCNAME,"foo@bar");
                        }
                        for ( uint32 s = 0; s  < NSESSIONS; s++) {
                        // 50 packets per second (packet duration of 20ms)
                                uint16 inc = 
                                        tx[s]->getCurrentRTPClockRate()/50;
                                tx[s]->putData(i*inc,
                                               pattern.getPacketData(i),
                                               pattern.getPacketSize(i));
                        }
                        Thread::sleep(TimerPort::getTimer());
                        TimerPort::incTimer(period);
                }

                Thread::sleep(5000);
                for ( uint32 i = 0; i < NSESSIONS; i++ ) {
                        delete tx[i];
                }
                RTPSession::SyncSourcesIterator it;
                cout << "Sources of synchronization:" << endl;
                for (it = rx.begin() ; it != rx.end(); it++) {
                        const SyncSource &s = *it;
                        cout << s.getID();
                        if ( s.isSender() ) 
                                cout << " (sender) ";
                        cout << s.getNetworkAddress() << ":" <<
                                s.getControlTransportPort() << "/" <<
                                s.getDataTransportPort();
                        Participant *p = s.getParticipant();
                        cout << " (" << 
                                p->getSDESItem(SDESItemTypeCNAME)
                             << ") " << endl;
                }
                RTPApplication &app = defaultApplication();
                RTPApplication::ParticipantsIterator ai;
                cout << "Participants:" << endl;
                for ( ai = app.begin(); ai != app.end(); ai++ ) {
                        const Participant &p = *ai;
                        cout << p.getSDESItem(SDESItemTypeCNAME) << endl;
                        //cout << p.getPRIVPrefix();
                }
                delete tx;
                return 0;
        }
};

// class TestPacketHeaders { }
// header extension

// class TestRTCPTransmission { }

// class TestMiscellaneous { }

// Things that should be tested:
// extreme values (0 - big) for putData
// segmentation (setMaxSendSegmentSize())
// performance: packets/second (depending on packet size and # of participants)
int main(int argc, char *argv[])
{
        int result = 0;
        bool send = false;
        bool recv = false;

        RecvPacketTransmissionTest *rx;
        SendPacketTransmissionTest *tx;

        // accept as parameter if must run as --send or --recv

        // run several tests in parallel threads
        if ( send ) {
                tx = new SendPacketTransmissionTest();
                tx->start();
                tx->join();
        } else  if ( recv ) {
                rx = new RecvPacketTransmissionTest();
                rx->start();
                rx->join();
        } else {
                MiscTest m;
                m.start();
                m.join();
        }
        exit(result);
}


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