/*  The oRTP library is an RTP (Realtime Transport Protocol - rfc1889) 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*/#ifndef RTP_H#define RTP_H#include <ortp/rtpport.h>#define RTP_MAX_RQ_SIZE 100 /* max number of packet allowed to be enqueued */#define IPMAXLEN 20#define UDP_MAX_SIZE 65536#define RTP_FIXED_HEADER_SIZE 12#define RTP_DEFAULT_JITTER_TIME 80	/*miliseconds*/typedef struct rtp_header{#ifdef WORDS_BIGENDIAN	guint16 version:2;	guint16 padbit:1;	guint16 extbit:1;	guint16 cc:4;	guint16 markbit:1;	guint16 paytype:7;#else	guint16 cc:4;	guint16 extbit:1;	guint16 padbit:1;	guint16 version:2;	guint16 paytype:7;	guint16 markbit:1;#endif	guint16 seq_number;	guint32 timestamp;	guint32 ssrc;	guint32 csrc[16];} rtp_header_t;typedef struct rtp_stats{	guint64 packet_sent;	guint64 sent;		/* bytes sent */	guint64 recv; 		/* bytes received and delivered in time to the application */	guint64 hw_recv;		/* bytes of udp packets received */	guint64 packet_recv;	/* number of packets received */	guint64 unavaillable;	/* packets not availlable when they were queried */	guint64 outoftime;		/* number of packets that were received too late */	guint64 skipped;		/* number of packets skipped (that the application never queried 											or that need to be skipped in order to compensate a clock slide (see adaptive jitter control)) */	guint64 cum_packet_loss; /* cumulative number of packet lost */	guint64 bad;			/* packets that did not appear to be RTP */	guint64 discarded;		/* incoming packets discarded because the queue exceeds its max size */} rtp_stats_t;#define RTP_TIMESTAMP_IS_NEWER_THAN(ts1,ts2) \	((guint32)((guint32)(ts1) - (guint32)(ts2))< (guint32)(1<<31))#define RTP_TIMESTAMP_IS_STRICTLY_NEWER_THAN(ts1,ts2) \	( ((guint32)((guint32)(ts1) - (guint32)(ts2))< (guint32)(1<<31)) && (ts1)!=(ts2) )#define TIME_IS_NEWER_THAN(t1,t2) RTP_TIMESTAMP_IS_NEWER_THAN(t1,t2)#define TIME_IS_STRICTLY_NEWER_THAN(t1,t2) RTP_TIMESTAMP_IS_STRICTLY_NEWER_THAN(t1,t2)#endif