/* packet-rtp.h
 *
 * Routines for RTP dissection
 * RTP = Real time Transport Protocol
 *
 * $Id: packet-rtp.h 13941 2005-03-27 21:14:48Z etxrab $
 *
 * Copyright 2000, Philips Electronics N.V.
 * Written by Andreas Sikkema <andreas.sikkema@philips.com>
 *
 * Ethereal - Network traffic analyzer
 * By Gerald Combs <gerald@ethereal.com>
 * Copyright 1998 Gerald Combs
 *
 * This program 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.
 *
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

struct _rtp_info {
	unsigned int  info_version;
	gboolean      info_padding_set;
	gboolean      info_marker_set;
	unsigned int  info_payload_type;
	unsigned int  info_padding_count;
	guint16       info_seq_num;
	guint32       info_timestamp;
	guint32       info_sync_src;
	guint         info_data_len;       /* length of raw rtp data as reported */
	gboolean      info_all_data_present; /* FALSE if data is cut off */
	guint         info_payload_offset; /* start of payload relative to info_data */
	guint         info_payload_len;    /* length of payload (incl padding) */
	guint32		  info_setup_frame_num; /* the frame num of the packet that set this RTP connection */
	const guint8* info_data;           /* pointer to raw rtp data */
	/*
	* info_data: pointer to raw rtp data = header + payload incl. padding.
	* That should be safe because the "epan_dissect_t" constructed for the packet
	*  has not yet been freed when the taps are called.
	* (destroying the "epan_dissect_t" will end up freeing all the tvbuffs
	*  and hence invalidating pointers to their data).
	* See "add_packet_to_packet_list()" for details.
	*/
};

/* Info to save in RTP conversation / packet-info */
#define MAX_RTP_SETUP_METHOD_SIZE 7
struct _rtp_conversation_info
{
	gchar   method[MAX_RTP_SETUP_METHOD_SIZE + 1];
	guint32 frame_number;
	GHashTable *rtp_dyn_payload;   /* a hash table with the dynamic RTP payload */
};

/* Add an RTP conversation with the given details */
void rtp_add_address(packet_info *pinfo,
                     address *addr, int port,
                     int other_port,
                     gchar *setup_method, 
					 guint32 setup_frame_number,
					 GHashTable *rtp_dyn_payload);

/* Free and destroy the dyn_payload hash table */
void rtp_free_hash_dyn_payload(GHashTable *rtp_dyn_payload);

