164 lines
4.1 KiB
C++
Executable File
164 lines
4.1 KiB
C++
Executable File
/*
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This is a variation of example1.cpp, using the OnValidatedRTPPacket
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callback to process a packet.
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*/
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#include "rtpsession.h"
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#include "rtpudpv4transmitter.h"
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#include "rtpipv4address.h"
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#include "rtpsessionparams.h"
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#include "rtperrors.h"
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#include "rtplibraryversion.h"
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#include "rtpsourcedata.h"
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#include <stdlib.h>
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#include <stdio.h>
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#include <iostream>
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#include <string>
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using namespace jrtplib;
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//
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// This function checks if there was a RTP error. If so, it displays an error
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// message and exists.
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//
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void checkerror(int rtperr)
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{
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if (rtperr < 0)
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{
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std::cout << "ERROR: " << RTPGetErrorString(rtperr) << std::endl;
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exit(-1);
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}
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}
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// In an RTPSession derived class, we're going to overload OnValidatedRTPPacket
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// to process the incoming packets and OnRTCPSDESItem to show the SDES items that
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// are being received
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class MyRTPSession : public RTPSession
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{
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protected:
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void OnValidatedRTPPacket(RTPSourceData *srcdat, RTPPacket *rtppack, bool isonprobation, bool *ispackethandled)
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{
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printf("Got packet in OnValidatedRTPPacket from source 0x%04x!\n", srcdat->GetSSRC());
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DeletePacket(rtppack);
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*ispackethandled = true;
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}
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void OnRTCPSDESItem(RTPSourceData *srcdat, RTCPSDESPacket::ItemType t, const void *itemdata, size_t itemlength)
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{
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char msg[1024];
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memset(msg, 0, sizeof(msg));
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if (itemlength >= sizeof(msg))
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itemlength = sizeof(msg)-1;
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memcpy(msg, itemdata, itemlength);
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printf("SSRC %x: Received SDES item (%d): %s", (unsigned int)srcdat->GetSSRC(), (int)t, msg);
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}
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};
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//
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// The main routine
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//
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int main(void)
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{
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#ifdef RTP_SOCKETTYPE_WINSOCK
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WSADATA dat;
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WSAStartup(MAKEWORD(2,2),&dat);
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#endif // RTP_SOCKETTYPE_WINSOCK
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MyRTPSession sess;
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uint16_t portbase,destport;
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uint32_t destip;
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std::string ipstr;
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int status,i,num;
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std::cout << "Using version " << RTPLibraryVersion::GetVersion().GetVersionString() << std::endl;
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// First, we'll ask for the necessary information
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std::cout << "Enter local portbase:" << std::endl;
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std::cin >> portbase;
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std::cout << std::endl;
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std::cout << "Enter the destination IP address" << std::endl;
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std::cin >> ipstr;
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destip = inet_addr(ipstr.c_str());
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if (destip == INADDR_NONE)
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{
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std::cerr << "Bad IP address specified" << std::endl;
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return -1;
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}
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// The inet_addr function returns a value in network byte order, but
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// we need the IP address in host byte order, so we use a call to
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// ntohl
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destip = ntohl(destip);
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std::cout << "Enter the destination port" << std::endl;
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std::cin >> destport;
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std::cout << std::endl;
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std::cout << "Number of packets you wish to be sent:" << std::endl;
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std::cin >> num;
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// Now, we'll create a RTP session, set the destination, send some
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// packets and poll for incoming data.
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RTPUDPv4TransmissionParams transparams;
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RTPSessionParams sessparams;
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// IMPORTANT: The local timestamp unit MUST be set, otherwise
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// RTCP Sender Report info will be calculated wrong
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// In this case, we'll be sending 10 samples each second, so we'll
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// put the timestamp unit to (1.0/10.0)
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sessparams.SetOwnTimestampUnit(1.0/10.0);
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sessparams.SetAcceptOwnPackets(true);
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transparams.SetPortbase(portbase);
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// Let's also use RTCP multiplexing for this example
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transparams.SetRTCPMultiplexing(true);
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status = sess.Create(sessparams,&transparams);
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checkerror(status);
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// We're assuming that the destination is also using RTCP multiplexing
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// ('true' means that the same port will be used for RTCP)
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RTPIPv4Address addr(destip,destport,true);
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status = sess.AddDestination(addr);
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checkerror(status);
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for (i = 1 ; i <= num ; i++)
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{
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printf("\nSending packet %d/%d\n",i,num);
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// send the packet
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status = sess.SendPacket((void *)"1234567890",10,0,false,10);
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checkerror(status);
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// Either the background thread or the poll function itself will
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// cause the OnValidatedRTPPacket and OnRTCPSDESItem functions to
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// be called, so in this loop there's not much left to do.
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#ifndef RTP_SUPPORT_THREAD
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status = sess.Poll();
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checkerror(status);
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#endif // RTP_SUPPORT_THREAD
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RTPTime::Wait(RTPTime(1,0));
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}
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sess.BYEDestroy(RTPTime(10,0),0,0);
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#ifdef RTP_SOCKETTYPE_WINSOCK
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WSACleanup();
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#endif // RTP_SOCKETTYPE_WINSOCK
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return 0;
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}
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