/*  The oRTP LinPhone RTP library intends to provide basics for a RTP stack.  Copyright (C) 2001  Simon MORLAT simon.morlat@linphone.org  This library is free software; you can redistribute it and/or  modify it under the terms of the GNU Lesser General Public  License as published by the Free Software Foundation; either  version 2.1 of the License, or (at your option) any later version.  This library 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  Lesser General Public License for more details.  You should have received a copy of the GNU Lesser General Public  License along with this library; if not, write to the Free Software  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA*/#include <ortp/ortp.h>#include <ortp/telephonyevents.h>#include <signal.h>#include <stdlib.h>#include <assert.h>#include <sys/types.h>#ifndef _WIN32#include <sys/time.h>#else#include <time.h>#endif#include <stdio.h>int runcond=1;static int dtmf_tab[16]={'0','1','2','3','4','5','6','7','8','9','*','#','A','B','C','D'};void stophandler(int signum){	runcond=0;}static char *help="usage: test_tevrecv	filename loc_port\n";int dtmf_count=0;void recv_tev_cb(RtpSession *session,int type,long user_data){	printf("Receiving telephony event:%i\n",type);	if (type<16) printf("This is dtmf %c\n",dtmf_tab[type]);	dtmf_count++;}int main(int argc, char *argv[]){	RtpSession *session;	unsigned char buffer[160];	int err;	FILE *outfile;	uint32_t ts=0;	int have_more;	if (argc<3){		printf(help);		return -1;	}	ortp_init();	ortp_scheduler_init();		/* set the telephony event payload type to 96 in the av profile.*/	rtp_profile_set_payload(&av_profile,96,&payload_type_telephone_event);		session=rtp_session_new(RTP_SESSION_RECVONLY);			rtp_session_set_scheduling_mode(session,1);	rtp_session_set_blocking_mode(session,1);	rtp_session_set_local_addr(session,"0.0.0.0",atoi(argv[2]));	rtp_session_set_payload_type(session,0);		/* register for telephony events */	rtp_session_signal_connect(session,"telephone-event",(RtpCallback)recv_tev_cb,0);			outfile=fopen(argv[1],"wb");	if (outfile==NULL) {		perror("Cannot open file");		return -1;	}	signal(SIGINT,stophandler);	while(runcond)	{		have_more=1;		while (have_more){			err=rtp_session_recv_with_ts(session,buffer,160,ts,&have_more);			if (err>0) {				size_t ret = fwrite(buffer,1,err,outfile);				assert( ret == err );			}		}		ts+=160;		//ortp_message("Receiving packet.");	}	fclose(outfile);	rtp_session_destroy(session);	ortp_exit();	ortp_global_stats_display();	printf("Total dtmf events received: %i\n",dtmf_count);	return 0;}