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sems/core/plug-in/echo/Echo.cpp

102 lines
2.5 KiB

/*
* $Id$
*
* Copyright (C) 2002-2003 Fhg Fokus
*
* This file is part of sems, a free SIP media server.
*
* sems 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.
*
* For a license to use the sems software under conditions
* other than those described here, or to purchase support for this
* software, please contact iptel.org by e-mail at the following addresses:
* info@iptel.org
*
* sems 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 "AmApi.h"
#include "AmSession.h"
#include "AmConfig.h"
#include "AmAudio.h"
#include "log.h"
#include "Echo.h"
#include "AmAudioEcho.h"
#include "AmPlugIn.h"
EXPORT_SESSION_FACTORY(EchoFactory,"echo");
#define STAR_SWITCHES_PLAYOUTBUFFER
EchoFactory::EchoFactory(const string& _app_name)
: AmSessionFactory(_app_name),
session_timer_f(0)
{}
int EchoFactory::onLoad()
{
session_timer_f = AmPlugIn::instance()->getFactory4Seh("session_timer");
DBG("session_timer_f == 0x%.16lX\n",(unsigned long)session_timer_f);
return (session_timer_f == NULL);
}
AmSession* EchoFactory::onInvite(const AmSipRequest& req)
{
AmSession* s = new EchoDialog();
s->addHandler(session_timer_f->getHandler(s));
return s;
}
EchoDialog::EchoDialog()
: playout_type(SIMPLE_PLAYOUT)
{
}
EchoDialog::~EchoDialog()
{
}
void EchoDialog::onSessionStart(const AmSipRequest& req)
{
setInOut(&echo,&echo);
}
void EchoDialog::onBye(const AmSipRequest& req)
{
setStopped();
}
void EchoDialog::onDtmf(int event, int duration)
{
#ifdef STAR_SWITCHES_PLAYOUTBUFFER
if (event == 10) {
const char* pt = "simple (fifo) playout buffer";
if (playout_type == SIMPLE_PLAYOUT) {
playout_type = ADAPTIVE_PLAYOUT;
pt = "adaptive playout buffer";
} else if (playout_type == ADAPTIVE_PLAYOUT) {
pt = "adaptive jitter buffer";
playout_type = JB_PLAYOUT;
} else
playout_type = SIMPLE_PLAYOUT;
DBG("received *. set playout technique to %s.\n", pt);
rtp_str.setPlayoutType(playout_type);
}
#endif
}