/* * Copyright (c) 2004 Maxim Sobolev * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright *    notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright *    notice, this list of conditions and the following disclaimer in the *    documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $Id: rtp.h,v 1.1 2005/03/06 19:03:52 sobomax Exp $ * */#ifndef _RTP_H_#define _RTP_H_#include <sys/types.h>/* * RTP payload types */typedef enum {    RTP_PCMU = 0,    RTP_G723 = 4,    RTP_PCMA = 8,    RTP_CN = 13,    RTP_G729 = 18,    RTP_TSE = 100,    RTP_TSE_CISCO = 101} rtp_type_t;/* * RTP data header */typedef struct {#if BYTE_ORDER == BIG_ENDIAN    unsigned int version:2;	/* protocol version */    unsigned int p:1;		/* padding flag */    unsigned int x:1;		/* header extension flag */    unsigned int cc:4;		/* CSRC count */    unsigned int m:1;		/* marker bit */    unsigned int pt:7;		/* payload type */#else    unsigned int cc:4;		/* CSRC count */    unsigned int x:1;		/* header extension flag */    unsigned int p:1;		/* padding flag */    unsigned int version:2;	/* protocol version */    unsigned int pt:7;		/* payload type */    unsigned int m:1;		/* marker bit */#endif    unsigned int seq:16;	/* sequence number */    uint32_t ts;		/* timestamp */    uint32_t ssrc;		/* synchronization source */    uint32_t csrc[0];		/* optional CSRC list */} rtp_hdr_t;#define	RTP_HDR_LEN(rhp)	(sizeof(*(rhp)) + ((rhp)->cc * sizeof((rhp)->csrc[0])))#endif