/*  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*//* this program shows how to send streams in paralel using the SessionSet api 	and two threads only. */#include <ortp/ortp.h>#include <signal.h>#include <stdlib.h>#include <stdio.h>#ifndef _WIN32 #include <sys/types.h>#include <sys/time.h>#endifint runcond=1;void stophandler(int signum){	runcond=0;}static char *help="usage: mrtpsend	filename ip port nstreams [--packet-size size] [--ts-inc value]\n";#define STREAMS_COUNT 1000int main(int argc, char *argv[]){	RtpSession *session[STREAMS_COUNT];	unsigned char *buffer;	int packet_size=160;	int ts_inc=160;	int i;	FILE *infile;	char *ssrc;	int port;	uint32_t user_ts=0;	int channels;	SessionSet *set;		if (argc<5){		printf(help);		return -1;	}		channels=atoi(argv[4]);	if (channels==0){		printf(help);		return -1;	}		/* look at command line options */	for (i=5;i<argc;i++)	{		if (strcmp(argv[i],"--packet-size")==0)		{			if ( i+1 < argc ){				packet_size=atoi(argv[i+1]);			}			else {				printf(help);				return -1;			}			if (packet_size==0) {				printf("Packet size can't be %s.\n",argv[i+1]);				return -1;			}			i+=1;					}		else if (strcmp(argv[i],"--ts-inc")==0)		{			if ( i+1 < argc ){				ts_inc=atoi(argv[i+1]);			}			else {				printf(help);				return -1;			}			if (ts_inc==0) {				printf("Timestanp increment can't be %s.\n",argv[i+1]);				return -1;			}			i+=1;					}	}	printf("Timestamp increment will be %i\n",ts_inc);	printf("Packet size will be %i\n",packet_size);	buffer=ortp_malloc(packet_size);	ortp_init();	ortp_scheduler_init();	printf("scheduler initialized\n");	ssrc=getenv("SSRC");	port=atoi(argv[3]);	for (i=0;i<channels;i++){		printf("channel %d\n", i);		session[i]=rtp_session_new(RTP_SESSION_SENDONLY);			rtp_session_set_scheduling_mode(session[i],1);		rtp_session_set_blocking_mode(session[i],0);		rtp_session_set_remote_addr(session[i],argv[2],port);		rtp_session_set_payload_type(session[i],0);		if (ssrc!=NULL) rtp_session_set_ssrc(session[i],atoi(ssrc));		port+=2;	}		#ifndef _WIN32	infile=fopen(argv[1],"r");	#else	infile=fopen(argv[1],"rb");	#endif	if (infile==NULL) {		perror("Cannot open file");		return -1;	}	printf("open file\n");	signal(SIGINT,stophandler);	/* create a set */	set=session_set_new();	while( ((i=fread(buffer,1,packet_size,infile))>0) && (runcond) )	{		int k;		//ortp_message("Sending packet.");		for (k=0;k<channels;k++){				/* add the session to the set */			session_set_set(set,session[k]);		}		/* and then suspend the process by selecting() */		session_set_select(NULL,set,NULL);		for (k=0;k<channels;k++){			/* this is stupid to do this test, because all session work the same way,			as the same user_ts is used for all sessions, here. */			if (session_set_is_set(set,session[k])){				rtp_session_send_with_ts(session[k],buffer,i,user_ts);				//ortp_message("packet sended !");			}		}		user_ts+=ts_inc;	}	fclose(infile);	printf("close file\n");	/*sleep a little to wait last packets to be sent */	#ifndef _WIN32	sleep(1);	#else	Sleep(1);	#endif	for (i=0;i<channels;i++)		rtp_session_destroy(session[i]);	session_set_destroy(set);	ortp_free(buffer);	ortp_exit();	ortp_global_stats_display();	return 0;}