rtcp_handler.c

linuxUNIX下跑的一套服务端程序

/* * 
 *  $Id: RTCP_handler.c 164 2005-06-06 11:53:36Z federico $
 *  
 *  This file is part of Fenice
 *
 *  Fenice -- Open Media Server
 *
 *  Copyright (C) 2004 by
 *  	
 *	- Giampaolo Mancini	<[e-mail]>
 *	- Francesco Varano	<[e-mail]>
 *	- Marco Penno		<[e-mail]>
 *	- Federico Ridolfo	<[e-mail]>
 *	- Eugenio Menegatti 	<[e-mail]>
 *	- Stefano Cau
 *	- Giuliano Emma
 *	- Stefano Oldrini
 * 
 *  Fenice 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.
 *
 *  Fenice 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 Fenice; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *  
 * */

#include <fenice/eventloop.h>
#include <fenice/rtcp.h>
#include <fenice/rtp.h>
#include <fenice/utils.h>
#include <fenice/fnc_log.h>

int RTCP_handler(RTP_session *session)
{
	fd_set wset;
	struct timeval t;

	if (session->rtcp_stats[i_server].pkt_count%20==0) {
		if (session->rtcp_stats[i_server].pkt_count==0) 
			RTCP_send_packet(session,RR);
		else 
			RTCP_send_packet(session,SR);
		RTCP_send_packet(session,SDES);
		/*---------------SEND PKT-------------------------*/
		/*---------------SEE eventloop/rtsp_server.c-------*/
		FD_ZERO(&wset);
       		t.tv_sec=0;
       		t.tv_usec=100000;

		if (session->rtcp_outsize>0) 
    			FD_SET(session->rtcp_fd_out,&wset);
		if (select(MAX_FDS,0,&wset,0,&t)<0) {		
    			fnc_log(FNC_LOG_ERR,"select error\n");
			/*send_reply(500, NULL, rtsp);*/
			return ERR_GENERIC; //errore interno al server
    		}

		if (FD_ISSET(session->rtcp_fd_out,&wset)) {
        		if (sendto(session->rtcp_fd_out,session->rtcp_outbuffer,session->rtcp_outsize,0,&(session->rtcp_out_peer),sizeof(session->rtcp_out_peer))<0) 
        			fnc_log(FNC_LOG_VERBOSE,"RTCP Packet Lost\n");
      		  	    		
        		session->rtcp_outsize=0;
	       		fnc_log(FNC_LOG_VERBOSE,"OUT RTCP\n");         	
		}
		/*------------------------------------------------*/
	}
	return ERR_NOERROR;
}