![Jörg Mayer](/assets/img/avatar_default.png)
This looses the last checkin to gtk, will add this manually back. svn path=/trunk/; revision=40518
132 lines
3.5 KiB
C
132 lines
3.5 KiB
C
/* rtp_analysis.h
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* RTP analysis addition for Wireshark
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*
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* $Id$
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*
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* Copyright 2003, Alcatel Business Systems
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* By Lars Ruoff <lars.ruoff@gmx.net>
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*
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* based on tap_rtp.c
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* Copyright 2003, Iskratel, Ltd, Kranj
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* By Miha Jemec <m.jemec@iskratel.si>
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program 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_ANALYSIS_H__
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#define __RTP_ANALYSIS_H__
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#include <glib.h>
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#include <epan/address.h>
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#include <epan/packet_info.h>
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/** @file
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* ???
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* @todo what's this?
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*/
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void rtp_analysis(
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address *ip_src_fwd,
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guint16 port_src_fwd,
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address *ip_dst_fwd,
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guint16 port_dst_fwd,
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guint32 ssrc_fwd,
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address *ip_src_rev,
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guint16 port_src_rev,
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address *ip_dst_rev,
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guint16 port_dst_rev,
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guint32 ssrc_rev
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);
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/****************************************************************************/
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/* structure that holds the information about the forward and reversed direction */
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typedef struct _bw_history_item {
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double time;
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guint32 bytes;
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} bw_history_item;
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#define BUFF_BW 300
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typedef struct _tap_rtp_stat_t {
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gboolean first_packet; /* do not use in code that is called after rtp_packet_analyse */
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/* use (flags & STAT_FLAG_FIRST) instead */
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/* all of the following fields will be initialized after
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* rtp_packet_analyse has been called
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*/
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guint32 flags; /* see STAT_FLAG-defines below */
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guint16 seq_num;
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guint32 timestamp;
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guint32 first_timestamp;
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guint32 delta_timestamp;
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double bandwidth;
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bw_history_item bw_history[BUFF_BW];
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guint16 bw_start_index;
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guint16 bw_index;
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guint32 total_bytes;
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guint32 clock_rate;
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double delta;
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double jitter;
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double diff;
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double skew;
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double sumt;
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double sumTS;
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double sumt2;
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double sumtTS;
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double time; /* Unit is ms */
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double start_time;
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double lastnominaltime;
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double max_delta;
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double max_jitter;
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double max_skew;
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double mean_jitter;
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guint32 max_nr;
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guint16 start_seq_nr;
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guint16 stop_seq_nr;
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guint32 total_nr;
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guint32 sequence;
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gboolean under;
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gint cycles;
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guint16 pt;
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int reg_pt;
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} tap_rtp_stat_t;
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#define PT_UNDEFINED -1
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/* status flags for the flags parameter in tap_rtp_stat_t */
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#define STAT_FLAG_FIRST 0x001
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#define STAT_FLAG_MARKER 0x002
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#define STAT_FLAG_WRONG_SEQ 0x004
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#define STAT_FLAG_PT_CHANGE 0x008
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#define STAT_FLAG_PT_CN 0x010
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#define STAT_FLAG_FOLLOW_PT_CN 0x020
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#define STAT_FLAG_REG_PT_CHANGE 0x040
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#define STAT_FLAG_WRONG_TIMESTAMP 0x080
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#define STAT_FLAG_PT_T_EVENT 0x100
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/* forward */
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struct _rtp_info;
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/* function for analysing an RTP packet. Called from rtp_analysis and rtp_streams */
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extern int rtp_packet_analyse(tap_rtp_stat_t *statinfo,
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packet_info *pinfo,
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const struct _rtp_info *rtpinfo);
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#endif /* __RTP_ANALYSIS_H__ */
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