rtpSimple.cxx
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上传日期:2013-07-25
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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 $1,000, NOR FOR ANY INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
- * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
- * DAMAGE.
- *
- * ====================================================================
- *
- * This software consists of voluntary contributions made by Vovida
- * Networks, Inc. and many individuals on behalf of Vovida Networks,
- * Inc. For more information on Vovida Networks, Inc., please see
- * <http://www.vovida.org/>.
- *
- */
- static const char* const rtpSimple_cxx_Version =
- "$Id: rtpSimple.cxx,v 1.10 2001/06/29 21:02:42 bko Exp $";
- #include <unistd.h>
- #include <fstream>
- #include "rtpTypes.h"
- #include "Rtp.hxx"
- #include "Rtcp.hxx"
- #include "RtpSession.hxx"
- #ifdef __vxworks
- #include "VThread.hxx"
- #endif
- #include <sys/types.h>
- #include <sys/stat.h>
- #include <fcntl.h>
- #include <errno.h>
- #include <deque>
- #include "SessionData.hxx"
- #include "support.hxx"
- class MultiSession
- {
- public:
- MultiSession();
- void processControl();
- void periodicProcess();
- int setFds(fd_set* fdSet);
- void processFds(fd_set* fdSet);
- private:
- deque < SessionData* > sessionList;
- string cmdBuf;
- };
- MultiSession::MultiSession()
- {
- SessionData* session;
- session = new SessionData;
- sessionList.push_back(session);
- }
- bool cmd_verify(const split_t& command_list,
- const char* cmd_name,
- unsigned int args)
- {
- if (command_list.size() == args)
- {
- if ((command_list[0] == cmd_name))
- {
- return true;
- }
- }
- return false;
- }
- void MultiSession::processControl()
- {
- cout << "got bytes" << endl;
- // this should do something
- char buf[1024];
- int bytesRead = read(0, buf, 1023);
- buf[bytesRead] = ' ';
- cmdBuf += buf;
- // chomp out to the n
- SessionData* session = sessionList.front();
- while (1)
- {
- string::size_type pos = cmdBuf.find("n");
- if (pos != string::npos)
- {
- // this is a command
- string cmd;
- cmd = cmdBuf.substr(0, pos);
- split_t myCmd = split(cmd, " ");
- if (cmd_verify(myCmd, "n", 4))
- {
- cout << "new handle" << endl;
- session->newStack(myCmd[1], myCmd[2], myCmd[3]);
- }
- if (myCmd[0] == "v")
- {
- // voice mail mode:
- // play first filename (greeting)
- // play second filename (beep)
- // record third filename
- split_t::iterator i = myCmd.begin();
- i++;
- while (i != myCmd.end())
- {
- session->addQueue(*i);
- i++;
- }
- session->shouldUseQueue(true);
- }
- if (cmd_verify(myCmd, "r", 2))
- {
- session->setRecordFile(myCmd[1]);
- }
- if (cmd_verify(myCmd, "sr", 1))
- {
- session->stopRecord();
- }
- if (cmd_verify(myCmd, "p", 2))
- {
- // play file
- session->setPlayFile(myCmd[1]);
- }
- if (cmd_verify(myCmd, "d", 1))
- {
- // delete stack
- session->closeStack();
- }
- if (cmd_verify(myCmd, "s", 2))
- {
- session->setPktSize(atoi(myCmd[1].c_str()));
- }
- if (myCmd[0] == "q")
- {
- session->closeStack();
- exit(0);
- }
- if ((pos + 1) < cmdBuf.length())
- {
- cmdBuf
- = cmdBuf.substr(pos + 1,
- cmdBuf.length() - (pos + 1));
- }
- else
- {
- cmdBuf = "";
- }
- }
- else
- {
- // no more cmd -- skip
- break;
- }
- }
- }
- void MultiSession::periodicProcess()
- {
- SessionData* session = sessionList.front();
- session->periodicProcess();
- }
- int MultiSession::setFds(fd_set* fdSet)
- {
- int maxFd = 0;
- FD_SET(0, fdSet); // stdin -- needed for stuff
- SessionData* session = sessionList.front();
- int sessionFd = session->getFd();
- if (sessionFd >= 0)
- {
- FD_SET(sessionFd, fdSet);
- maxFd = sessionFd;
- }
- return maxFd;
- }
- void MultiSession::processFds(fd_set* fdSet)
- {
- if (FD_ISSET(0, fdSet))
- {
- processControl();
- }
- SessionData* session = sessionList.front();
- int sessionFd = session->getFd();
- if (sessionFd >= 0)
- {
- // handle selects
- if (FD_ISSET(sessionFd, fdSet))
- {
- session->receivePacket();
- }
- }
- }
- void mainAudioLoop()
- {
- MultiSession mySession;
- // in the audio stack, handle appropriate stuff
- while (1)
- {
- fd_set readfds;
- struct timeval tv;
- int retval;
- int maxFd = 0;
- // reset file descriptor
- FD_ZERO(&readfds);
- maxFd = mySession.setFds(&readfds);
- maxFd++;
- tv.tv_sec = 0;
- tv.tv_usec = 1000;
- retval = select(maxFd, &readfds, 0, 0, &tv);
- if (retval < 0)
- {
- cout << "select() returned with an errorn";
- return ;
- }
- if (retval > 0)
- {
- mySession.processFds(&readfds);
- }
- // check for too much time elapsing -- do I need to send a packet?
- mySession.periodicProcess();
- }
- }
- int main (int argc, char *argv[])
- {
- mainAudioLoop();
- // stack.transmitRTCPBYE();
- // RtpTransmitter* tran = stack.getRtpTran();
- return 0;
- }