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Diffstat (limited to 'ui/tap-rtp-analysis.h')
-rw-r--r-- | ui/tap-rtp-analysis.h | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/ui/tap-rtp-analysis.h b/ui/tap-rtp-analysis.h new file mode 100644 index 0000000..0ad6d9b --- /dev/null +++ b/ui/tap-rtp-analysis.h @@ -0,0 +1,124 @@ +/** @file + * + * RTP analysis addition for Wireshark + * + * Copyright 2003, Alcatel Business Systems + * By Lars Ruoff <lars.ruoff@gmx.net> + * + * based on tap_rtp.c + * Copyright 2003, Iskratel, Ltd, Kranj + * By Miha Jemec <m.jemec@iskratel.si> + * + * Wireshark - Network traffic analyzer + * By Gerald Combs <gerald@wireshark.org> + * Copyright 1998 Gerald Combs + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#ifndef __TAP_RTP_ANALYSIS_H__ +#define __TAP_RTP_ANALYSIS_H__ + +#include <epan/address.h> +#include <epan/packet_info.h> + +/** @file + * ??? + * @todo what's this? + */ + +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ + +/****************************************************************************/ +/* structure that holds the information about the forward and reversed direction */ +typedef struct _bw_history_item { + double time; + guint32 bytes; +} bw_history_item; + +#define BUFF_BW 300 + +typedef struct _tap_rtp_stat_t { + gboolean first_packet; /**< do not use in code that is called after rtppacket_analyse */ + /* use (flags & STAT_FLAG_FIRST) instead */ + /* all of the following fields will be initialized after + * rtppacket_analyse has been called + */ + guint32 flags; /* see STAT_FLAG-defines below */ + guint16 seq_num; + guint32 timestamp; + guint32 seq_timestamp; + guint32 first_timestamp; + double bandwidth; + bw_history_item bw_history[BUFF_BW]; + guint16 bw_start_index; + guint16 bw_index; + guint32 total_bytes; + guint32 clock_rate; + double delta; + double jitter; + double diff; + double skew; + double sumt; + double sumTS; + double sumt2; + double sumtTS; + double time; /**< Unit is ms */ + double start_time; /**< Unit is ms */ + double lastnominaltime; + double lastarrivaltime; + double min_delta; + double max_delta; + double mean_delta; + double min_jitter; + double max_jitter; + double max_skew; + double mean_jitter; + guint32 max_nr; + guint16 start_seq_nr; + guint16 stop_seq_nr; + guint32 total_nr; + guint32 sequence; + gboolean under; + gint seq_cycles; + guint16 pt; + int reg_pt; + guint32 first_packet_num; + guint last_payload_len; +} tap_rtp_stat_t; + +typedef struct _tap_rtp_save_data_t { + guint32 timestamp; + unsigned int payload_type; + size_t payload_len; +} tap_rtp_save_data_t; + +#define PT_UNDEFINED -1 + +/* status flags for the flags parameter in tap_rtp_stat_t */ +#define STAT_FLAG_FIRST 0x001 +#define STAT_FLAG_MARKER 0x002 +#define STAT_FLAG_WRONG_SEQ 0x004 +#define STAT_FLAG_PT_CHANGE 0x008 +#define STAT_FLAG_PT_CN 0x010 +#define STAT_FLAG_FOLLOW_PT_CN 0x020 +#define STAT_FLAG_REG_PT_CHANGE 0x040 +#define STAT_FLAG_WRONG_TIMESTAMP 0x080 +#define STAT_FLAG_PT_T_EVENT 0x100 +#define STAT_FLAG_DUP_PKT 0x200 + +/* forward */ +struct _rtp_info; + +/* function for analysing an RTP packet. Called from rtp_analysis and rtp_streams */ +extern void rtppacket_analyse(tap_rtp_stat_t *statinfo, + const packet_info *pinfo, + const struct _rtp_info *rtpinfo); + +#ifdef __cplusplus +} +#endif /* __cplusplus */ + +#endif /* __TAP_RTP_ANALYSIS_H__ */ |