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74 lines
2.2 KiB
74 lines
2.2 KiB
/*
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* $Id: rtp.h,v 1.3 2003/11/25 16:19:19 rco Exp $
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*
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* Copyright (C) 2002-2003 Fhg Fokus
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*
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* This file is part of sems, a free SIP media server.
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*
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* sems is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* For a license to use the sems software under conditions
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* other than those described here, or to purchase support for this
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* software, please contact iptel.org by e-mail at the following addresses:
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* info@iptel.org
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*
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* sems is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef RTP_H
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#define RTP_H
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/*
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* rtp.h -- RTP header file (RFC 1889)
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*/
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#include <sys/types.h>
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/*
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* The type definitions below are valid for 32-bit architectures and
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* may have to be adjusted for 16- or 64-bit architectures.
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*/
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typedef unsigned short u_int16;
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typedef unsigned int u_int32;
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/*
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* Current protocol version.
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*/
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#define RTP_VERSION 2
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/*
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* RTP data header
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*/
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typedef struct {
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#if BYTE_ORDER == BIG_ENDIAN
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u_int16 version:2; /* protocol version */
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u_int16 p:1; /* padding flag */
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u_int16 x:1; /* header extension flag */
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u_int16 cc:4; /* CSRC count */
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u_int16 m:1; /* marker bit */
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u_int16 pt:7; /* payload type */
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#else
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u_int16 cc:4; /* CSRC count */
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u_int16 x:1; /* header extension flag */
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u_int16 p:1; /* padding flag */
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u_int16 version:2; /* protocol version */
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u_int16 pt:7; /* payload type */
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u_int16 m:1; /* marker bit */
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#endif
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u_int16 seq; /* sequence number */
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u_int32 ts; /* timestamp */
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u_int32 ssrc; /* synchronization source */
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} rtp_hdr_t;
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#endif
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