rtcp.h

linuxUNIX下跑的一套服务端程序

/* * 
 *  $Id: rtcp.h 2 2004-06-08 15:08:53Z mancho $
 *  
 *  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
 *  
 * */

#ifndef _RTCPH
#define _RTCPH
	
	#include <fenice/rtp.h>
	
	//#define MAX_PKT_SIZE 548 /* 576 - 20 - 8 = Minimum Reassembly Buffer Size - IP datagram header -  UDP header: in octects */
	//#define MAX_SDES_LEN 255 /* in octects */

	/*#define RTCP_MIN_TIME 5.0
	#define RTCP_SENDER_BW_FRACTION 0.25
	#define RTCP_RCVR_BW_FRACTION 0.75
	#define COMPENSATION 1.21828*/ /* e - 1.5 */

	typedef enum {
		SR=200,
		RR=201,
		SDES=202,
		BYE=203,
		APP=204
	} rtcp_pkt_type;

	typedef enum {
		CNAME=1,
		NAME=2,
		EMAIL=3,
		PHONE=4,
		LOC=5,
		TOOL=6,
		NOTE=7,
		PRIV=8		
	} rtcp_info;
		
	typedef struct _RTCP_header {
    		#if (BYTE_ORDER == LITTLE_ENDIAN)
        		unsigned int count:5;    	//SC oppure RC
            		unsigned int padding:1;        	
            		unsigned int version:2;
        	#elif (BYTE_ORDER == BIG_ENDIAN)
            		unsigned int version:2;
            		unsigned int padding:1;
        		unsigned int count:5;		//SC oppure RC
        	#else
    	    		#error Neither big nor little
        	#endif
    		unsigned int pt:8;
		unsigned int length:16;
	} RTCP_header;

	typedef struct _RTCP_header_SR {
		unsigned int ssrc;    	
		unsigned int ntp_timestampH;
		unsigned int ntp_timestampL;
		unsigned int rtp_timestamp;
		unsigned int pkt_count;    		
		unsigned int octet_count;
	} RTCP_header_SR;

	typedef struct _RTCP_header_RR {
		unsigned int ssrc;
	} RTCP_header_RR;	
	
	typedef struct _RTCP_header_SR_report_block {
		unsigned long ssrc;
		unsigned char fract_lost;		
		unsigned char pck_lost[3];
		unsigned int h_seq_no;
		unsigned int jitter;
		unsigned int last_SR;
		unsigned int delay_last_SR;    		
	} RTCP_header_SR_report_block;	
			
	typedef struct _RTCP_header_SDES {
		unsigned int ssrc;
		unsigned char attr_name;
		unsigned char len;		
	} RTCP_header_SDES;

	typedef struct _RTCP_header_BYE {
		unsigned int ssrc;
		unsigned char length;
	} RTCP_header_BYE;
	
	int RTCP_send_packet(RTP_session *session,rtcp_pkt_type type);
	int RTCP_recv_packet(RTP_session *session);
	int RTCP_handler(RTP_session *session);

	int RTCP_get_pkt_lost(RTP_session *session);
        // Quanti pacchetti (RTP) ha perso il client

        float RTCP_get_fract_lost(RTP_session *session);
        // Quanti byte ha perso il client

        unsigned int RTCP_get_jitter(RTP_session *session);
        // Il jitter

        unsigned int RTCP_get_RR_received(RTP_session *session);
        // Quanti pacchetti RR ha ricevuto il server dal client

        unsigned int RTCP_get_total_packet(RTP_session *session);
        // Quanti pacchetti ha spedito il server

        unsigned int RTCP_get_total_payload_octet(RTP_session *session);
        // Quanti byte ha spedito il server

        // int RTCP_parse(char *buff,RTP_session *session);
        // Effettua il parsing di un pacchetto RTCP

        // int RTCP_send_SDES(RTP_session *session);

        int RTCP_get_pkt_lost(RTP_session *session);
        // Quanti pacchetti (RTP) ha perso il client

        float RTCP_get_fract_lost(RTP_session *session);
        // Quanti byte ha perso il client

        unsigned int RTCP_get_jitter(RTP_session *session);
        // Il jitter

        unsigned int RTCP_get_total_packet(RTP_session *session);
        // Quanti pacchetti ha spedito il server

        unsigned int RTCP_get_total_payload_octet(RTP_session *session);
        // Quanti byte ha spedito il server

        // int RTCP_parse(char *buff,RTP_session *session);
        // Effettua il parsing di un pacchetto RTCP

        // int RTCP_send_SDES(RTP_session *session);
        // Spedisce un pacchetto Source DEScription sulla base dei dati in *session.

        // int RTCP_send_SR(RTP_session *session);
        // Spedisce un pacchetto Source Report sulla base dei dati in *session.

	
#endif