tpTrunk.cxx
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- /* ====================================================================
- * The Vovida Software License, Version 1.0
- *
- * Copyright (c) 2000 Vovida Networks, Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. The names "VOCAL", "Vovida Open Communication Application Library",
- * and "Vovida Open Communication Application Library (VOCAL)" must
- * not be used to endorse or promote products derived from this
- * software without prior written permission. For written
- * permission, please contact vocal@vovida.org.
- *
- * 4. Products derived from this software may not be called "VOCAL", nor
- * may "VOCAL" appear in their name, without prior written
- * permission of Vovida Networks, Inc.
- *
- * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND
- * NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL VOVIDA
- * NETWORKS, INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT DAMAGES
- * IN EXCESS OF $1,000, NOR FOR ANY INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
- * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
- * DAMAGE.
- *
- * ====================================================================
- *
- * This software consists of voluntary contributions made by Vovida
- * Networks, Inc. and many individuals on behalf of Vovida Networks,
- * Inc. For more information on Vovida Networks, Inc., please see
- * <http://www.vovida.org/>.
- *
- */
- static const char* const tpTrunk_cxx_Version =
- "$Id: tpTrunk.cxx,v 1.5 2000/12/18 23:44:52 bko Exp $";
- // --- Authors ---------------------------------------------------- //
- // Kim Le, July 1999
- // ---------------------------------------------------------------- //
- #include <stdlib.h>
- #include <stdio.h>
- #include <unistd.h>
- #include <fstream>
- #include <iostream>
- #include <sys/socket.h>
- #include <sys/ioctl.h>
- #include <sys/time.h>
- #include <sys/types.h>
- #include <fcntl.h>
- #include <netinet/in.h>
- #include <arpa/inet.h>
- #include <netdb.h>
- #include <unistd.h>
- #include <errno.h>
- #include <syslog.h>
- #include "rtpTypes.h"
- #include "RtpSession.hxx"
- #include "ixjuser.h"
- #define ULAW_PAYLOAD 240
- int main (int argc, char *argv[])
- {
- RtpPayloadType payloadType = rtpPayloadPCMU;
- const int residRate = 240;
- const int trunkRate = 160;
- if (argc != 4)
- {
- cerr << "Usage: tpTrunk host rtp_tran_port rtp_recv_portn";
- return 1;
- }
- // open quicknet card
- // char* szDevice = "/dev/ixj0";
- char* szDevice = "/dev/phone0";
- printf("Opening Phone Jack (%s)n", szDevice);
- int ixj = open(szDevice, O_RDWR);
- if (ixj < 0)
- {
- perror("Error opening voice card");
- return -1;
- }
- // open RTP stack
- RtpSession audioStack (argv[1], atoi(argv[2]), atoi(argv[3]),
- atoi(argv[2]) + 1, atoi(argv[3]) + 1,
- payloadType, -1);
- RtpPacket* outPacket = audioStack.createPacket (160);
- RtpPacket* inPacket = NULL;
- char* inBuffer = new char [480];
- int inPos = 0;
- int playPos = 0;
- char* outBuffer = new char [480];
- int outPos = 0;
- int recPos = 0;
- // setup file descriptor
- fd_set fileDescriptor;
- int selMax = ixj;
- ++selMax;
- struct timeval timeout;
- int selret = 0;
- // open audio path
- ioctl(ixj, IXJCTL_PLAY_CODEC, ULAW);
- ioctl(ixj, IXJCTL_REC_CODEC, ULAW);
- ioctl(ixj, IXJCTL_REC_START);
- ioctl(ixj, IXJCTL_PLAY_START);
- ioctl(ixj, IXJCTL_AEC_START);
- // continue audio path
- cerr << "Starting audion";
- while (ioctl(ixj, IXJCTL_HOOKSTATE))
- {
- // set up file descriptor
- FD_ZERO (&fileDescriptor);
- FD_SET (ixj, &fileDescriptor);
- timeout.tv_sec = 0;
- timeout.tv_usec = 0;
- // read packet into inBuffer
- inPacket = audioStack.receive();
- if (inPacket)
- {
- if (inPacket->getPayloadUsage() != trunkRate)
- cerr << "Trunk read err " << inPacket->getPayloadUsage()
- << "instead of " << trunkRate << endl;
- else
- {
- //cerr <<"Reading from net "<<inPos<<endl; // debug
- memcpy (inBuffer + inPos, inPacket->getPayloadLoc(),
- inPacket->getPayloadUsage());
- inPos += inPacket->getPayloadUsage();
- }
- }
- // play packet from inBuffer
- if (inPos >= playPos + residRate)
- {
- //cerr <<"Writing to ixj "<<playPos<<endl; // debug
- write (ixj, inBuffer + playPos, residRate);
- playPos += residRate;
- }
- // resync positions
- if (inPos == playPos)
- {
- inPos = 0;
- playPos = 0;
- }
- // read packet into outBuffer
- selret = select (selMax, &fileDescriptor, NULL, NULL, &timeout);
- if (selret <= 0)
- {
- // check if select error
- if (selret < 0) perror ("select error");
- }
- else if (FD_ISSET(ixj, &fileDescriptor) && outPos < 480)
- {
- //cerr <<"Reading from ixj "<<outPos<<endl; // debug
- int cc = read (ixj, outBuffer + outPos, residRate);
- if (cc != residRate)
- cerr << "IXJ read err " << cc << " instead of " << residRate;
- else
- outPos += residRate;
- }
- // send packet from outBuffer
- if (outPos >= recPos + trunkRate)
- {
- //cerr <<"Sending to net "<<recPos<<endl; // debug
- memcpy (outPacket->getPayloadLoc(), outBuffer + recPos,
- trunkRate);
- outPacket->setPayloadUsage (trunkRate);
- outPacket->setRtpTime (audioStack.getPrevRtpTime() +
- trunkRate);
- audioStack.transmit (outPacket);
- recPos += trunkRate;
- }
- // resync positions
- if (outPos == recPos)
- {
- outPos = 0;
- recPos = 0;
- }
- }
- audioStack.transmitRTCPBYE();
- ioctl(ixj, IXJCTL_REC_STOP);
- ioctl(ixj, IXJCTL_PLAY_STOP);
- ioctl(ixj, IXJCTL_AEC_STOP);
- close(ixj);
- return 0;
- }