2 * RTP streams summary addition for ethereal
6 * Copyright 2003, Alcatel Business Systems
7 * By Lars Ruoff <lars.ruoff@gmx.net>
9 * Ethereal - Network traffic analyzer
10 * By Gerald Combs <gerald@ethereal.com>
11 * Copyright 1998 Gerald Combs
13 * This program is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU General Public License
15 * as published by the Free Software Foundation; either version 2
16 * of the License, or (at your option) any later version.
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, write to the Free Software
25 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
28 #ifndef RTP_STREAM_H_INCLUDED
29 #define RTP_STREAM_H_INCLUDED
36 * @ingroup dialog_group
40 /****************************************************************************/
41 /* type for storing rtp frame information */
42 typedef struct st_rtp_sample_header {
43 guint32 rec_time; /* miliseconds since start of recording */
44 guint16 frame_length; /* number of bytes in *frame */
45 } rtp_sample_header_t;
47 /* type for storing rtp frame information */
48 typedef struct st_rtp_sample {
49 rtp_sample_header_t header; /* date and size */
50 const guint8 *frame; /* data bytes */
53 typedef rtp_sample_t* rtp_sample_p;
56 /* defines an rtp stream */
57 typedef struct _rtp_stream_info {
66 guint32 first_frame_num; /* frame number of first frame */
67 /* start of recording (GMT) of this stream */
68 guint32 start_sec; /* seconds */
69 guint32 start_usec; /* microseconds */
70 gboolean tag_vlan_error;
71 gboolean tag_diffserv_error;
86 /* structure that holds the information about all detected streams */
87 /* struct holding all information of the tap */
88 typedef struct _rtpstream_tapinfo {
89 int nstreams; /* number of streams in the list */
90 GList* strinfo_list; /* list with all streams */
91 int npackets; /* total number of rtp packets of all streams */
92 /* used while tapping. user shouldnt modify these */
94 rtp_stream_info_t* filter_stream_fwd; /* used as filter in some tap modes */
95 rtp_stream_info_t* filter_stream_rev; /* used as filter in some tap modes */
97 guint32 launch_count; /* number of times the tap has been run */
98 gboolean is_registered; /* if the tap listener is currently registered or not */
99 } rtpstream_tapinfo_t;
102 /****************************************************************************/
106 * Registers the rtp_streams tap listener (if not already done).
107 * From that point on, the RTP streams list will be updated with every redissection.
108 * This function is also the entry point for the initialization routine of the tap system.
109 * So whenever rtp_stream.c is added to the list of ETHEREAL_TAP_SRCs, the tap will be registered on startup.
110 * If not, it will be registered on demand by the rtp_streams and rtp_analysis functions that need it.
112 void register_tap_listener_rtp_stream(void);
115 * Removes the rtp_streams tap listener (if not already done)
116 * From that point on, the RTP streams list won't be updated any more.
118 void remove_tap_listener_rtp_stream(void);
121 * Retrieves a constant reference to the unique info structure of the rtp_streams tap listener.
122 * The user should not modify the data pointed to.
124 const rtpstream_tapinfo_t* rtpstream_get_info(void);
127 * Cleans up memory of rtp streams tap.
129 void rtpstream_reset(rtpstream_tapinfo_t *tapinfo);
132 * Scans all packets for RTP streams and updates the RTP streams list.
133 * (redissects all packets)
135 void rtpstream_scan(void);
138 * Saves an RTP stream as raw data stream with timestamp information for later RTP playback.
139 * (redissects all packets)
141 gboolean rtpstream_save(rtp_stream_info_t* stream, const gchar *filename);
144 * Marks all packets belonging to either of stream_fwd or stream_rev.
146 * (redissects all packets)
148 void rtpstream_mark(rtp_stream_info_t* stream_fwd, rtp_stream_info_t* stream_rev);
151 #endif /*RTP_STREAM_H_INCLUDED*/