1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
|
/*
* This file is part of the Nice GLib ICE library.
*
* (C) 2006, 2007 Collabora Ltd.
* Contact: Dafydd Harries
* (C) 2006, 2007 Nokia Corporation. All rights reserved.
* Contact: Kai Vehmanen
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is the Nice GLib ICE library.
*
* The Initial Developers of the Original Code are Collabora Ltd and Nokia
* Corporation. All Rights Reserved.
*
* Contributors:
* Dafydd Harries, Collabora Ltd.
* Kai Vehmanen, Nokia
*
* Alternatively, the contents of this file may be used under the terms of the
* the GNU Lesser General Public License Version 2.1 (the "LGPL"), in which
* case the provisions of LGPL are applicable instead of those above. If you
* wish to allow use of your version of this file only under the terms of the
* LGPL and not to allow others to use your version of this file under the
* MPL, indicate your decision by deleting the provisions above and replace
* them with the notice and other provisions required by the LGPL. If you do
* not delete the provisions above, a recipient may use your version of this
* file under either the MPL or the LGPL.
*/
#ifndef _NICE_COMPONENT_H
#define _NICE_COMPONENT_H
#include <glib.h>
#include "agent.h"
#include "candidate.h"
G_BEGIN_DECLS
/* (ICE ยง4.1.1.1, ID-19) ""For RTP-based media streams, the RTP itself has a component
* ID of 1, and RTCP a component ID of 2. If an agent is using RTCP it MUST
* obtain a candidate for it. If an agent is using both RTP and RTCP, it
* would end up with 2*K host candidates if an agent has K interfaces.""
*/
typedef struct _Component Component;
typedef struct _CandidatePair CandidatePair;
typedef struct _IncomingCheck IncomingCheck;
struct _CandidatePair
{
NiceCandidate *local;
NiceCandidate *remote;
guint64 priority; /**< candidate pair priority */
};
struct _IncomingCheck
{
NiceAddress from;
NiceUDPSocket *local_socket;
uint32_t priority;
gboolean use_candidate;
};
struct _Component
{
NiceComponentType type;
guint id; /**< component id */
NiceComponentState state;
GSList *local_candidates; /**< list of Candidate objs */
GSList *remote_candidates; /**< list of Candidate objs */
GSList *sockets; /**< list of NiceUDPSocket objs */
GSList *gsources; /**< list of GSource objs */
GSList *incoming_checks; /**< list of IncomingCheck objs */
CandidatePair selected_pair; /**< independent from checklists,
see ICE 11.1. "Sending Media" (ID-19) */
gboolean media_after_tick; /**< true if media received since last
keepalive tick */
NiceCandidate *restart_candidate; /**< for storing active remote candidate during a restart */
};
Component *
component_new (
G_GNUC_UNUSED
guint component_id);
void
component_free (Component *cmp);
NiceUDPSocket *
component_find_udp_socket_by_fd (Component *component, guint fd);
gboolean
component_find_pair (Component *cmp, NiceAgent *agent, const gchar *lfoundation, const gchar *rfoundation, CandidatePair *pair);
gboolean
component_restart (Component *cmp);
void
component_update_selected_pair (Component *component, const CandidatePair *pair);
NiceCandidate *
component_find_remote_candidate (const Component *component, const NiceAddress *addr, NiceCandidateTransport transport);
G_END_DECLS
#endif /* _NICE_COMPONENT_H */
|
