/*  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 <sys/types.h>#ifndef _WIN32#include <sys/time.h>#else#include <time.h>#endif#include <stdio.h>int runcond=1;void stophandler(int signum){	runcond=0;}static char *help="usage: test_tevsend	filename dest_ip4addr dest_port\n";int main(int argc, char *argv[]){	RtpSession *session;	unsigned char buffer[160];	int i;	FILE *infile;	char *ssrc;	uint32_t user_ts=0;	int tel=0;		if (argc<4){            	printf("%s",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_SENDONLY);		rtp_session_set_scheduling_mode(session,1);	rtp_session_set_blocking_mode(session,1);	rtp_session_set_remote_addr(session,argv[2],atoi(argv[3]));	rtp_session_set_send_payload_type(session,0);		ssrc=getenv("SSRC");	if (ssrc!=NULL) {		printf("using SSRC=%i.\n",atoi(ssrc));		rtp_session_set_ssrc(session,atoi(ssrc));	}			infile=fopen(argv[1],"rb");	if (infile==NULL) {		perror("Cannot open file");		return -1;	}	signal(SIGINT,stophandler);	while( ((i=fread(buffer,1,160,infile))>0) && (runcond) )	{		//ortp_message("Sending packet.");		rtp_session_send_with_ts(session,buffer,i,user_ts);		user_ts+=160;		tel++;		if (tel==50){			tel=0;			ortp_message("Sending telephony event packet.");			rtp_session_send_dtmf(session,'*',user_ts);			user_ts+=160+160+160; /* the duration of the dtmf */		}	}	fclose(infile);	rtp_session_destroy(session);	ortp_exit();	ortp_global_stats_display();	return 0;}