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
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
|
/* SPDX-License-Identifier: GPL-3.0-or-later
* Copyright © 2016-2018 The TokTok team.
* Copyright © 2013-2015 Tox project.
*/
#ifndef C_TOXCORE_TOXAV_MSI_H
#define C_TOXCORE_TOXAV_MSI_H
#include "audio.h"
#include "video.h"
#include "../toxcore/Messenger.h"
#include "../toxcore/logger.h"
#include <inttypes.h>
#include <pthread.h>
/**
* Error codes.
*/
typedef enum MSIError {
MSI_E_NONE,
MSI_E_INVALID_MESSAGE,
MSI_E_INVALID_PARAM,
MSI_E_INVALID_STATE,
MSI_E_STRAY_MESSAGE,
MSI_E_SYSTEM,
MSI_E_HANDLE,
MSI_E_UNDISCLOSED, /* NOTE: must be last enum otherwise parsing will not work */
} MSIError;
/**
* Supported capabilities
*/
typedef enum MSICapabilities {
MSI_CAP_S_AUDIO = 4, /* sending audio */
MSI_CAP_S_VIDEO = 8, /* sending video */
MSI_CAP_R_AUDIO = 16, /* receiving audio */
MSI_CAP_R_VIDEO = 32, /* receiving video */
} MSICapabilities;
/**
* Call state identifiers.
*/
typedef enum MSICallState {
MSI_CALL_INACTIVE, /* Default */
MSI_CALL_ACTIVE,
MSI_CALL_REQUESTING, /* when sending call invite */
MSI_CALL_REQUESTED, /* when getting call invite */
} MSICallState;
/**
* Callbacks ids that handle the states
*/
typedef enum MSICallbackID {
MSI_ON_INVITE, /* Incoming call */
MSI_ON_START, /* Call (RTP transmission) started */
MSI_ON_END, /* Call that was active ended */
MSI_ON_ERROR, /* On protocol error */
MSI_ON_PEERTIMEOUT, /* Peer timed out; stop the call */
MSI_ON_CAPABILITIES, /* Peer requested capabilities change */
} MSICallbackID;
/**
* The call struct. Please do not modify outside msi.c
*/
typedef struct MSICall_s {
struct MSISession_s *session; /* Session pointer */
MSICallState state;
uint8_t peer_capabilities; /* Peer capabilities */
uint8_t self_capabilities; /* Self capabilities */
uint16_t peer_vfpsz; /* Video frame piece size */
uint32_t friend_number; /* Index of this call in MSISession */
MSIError error; /* Last error */
struct ToxAVCall_s *av_call; /* Pointer to av call handler */
struct MSICall_s *next;
struct MSICall_s *prev;
} MSICall;
/**
* Expected return on success is 0, if any other number is
* returned the call is considered errored and will be handled
* as such which means it will be terminated without any notice.
*/
typedef int msi_action_cb(void *av, MSICall *call);
/**
* Control session struct. Please do not modify outside msi.c
*/
typedef struct MSISession_s {
/* Call handlers */
MSICall **calls;
uint32_t calls_tail;
uint32_t calls_head;
void *av;
Messenger *messenger;
pthread_mutex_t mutex[1];
msi_action_cb *callbacks[7];
} MSISession;
/**
* Start the control session.
*/
MSISession *msi_new(Messenger *m);
/**
* Terminate control session. NOTE: all calls will be freed
*/
int msi_kill(MSISession *session, const Logger *log);
/**
* Callback setter.
*/
void msi_register_callback(MSISession *session, msi_action_cb *callback, MSICallbackID id);
/**
* Send invite request to friend_number.
*/
int msi_invite(MSISession *session, MSICall **call, uint32_t friend_number, uint8_t capabilities);
/**
* Hangup call. NOTE: 'call' will be freed
*/
int msi_hangup(MSICall *call);
/**
* Answer call request.
*/
int msi_answer(MSICall *call, uint8_t capabilities);
/**
* Change capabilities of the call.
*/
int msi_change_capabilities(MSICall *call, uint8_t capabilities);
#endif // C_TOXCORE_TOXAV_MSI_H
|
