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
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
|
/*
* Copyright (C) 2008-2014 The QXmpp developers
*
* Authors:
* Ian Reinhart Geiser
* Jeremy Lainé
*
* Source:
* https://github.com/jlaine/qxmpp
*
* This file is a part of QXmpp library.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
*/
#include <cstdlib>
#include <cstdio>
#include <QAudioInput>
#include <QAudioOutput>
#include <QCoreApplication>
#include <QDebug>
#include <QHostInfo>
#include "QXmppCallManager.h"
#include "QXmppJingleIq.h"
#include "QXmppRtpChannel.h"
#include "QXmppUtils.h"
#include "example_4_callHandling.h"
xmppClient::xmppClient(QObject *parent)
: QXmppClient(parent)
, m_turnPort(0)
, m_turnFinished(false)
{
bool check;
Q_UNUSED(check);
// add QXmppCallManager extension
callManager = new QXmppCallManager;
addExtension(callManager);
check = connect(this, SIGNAL(connected()),
this, SLOT(slotConnected()));
Q_ASSERT(check);
check = connect(this, SIGNAL(presenceReceived(QXmppPresence)),
this, SLOT(slotPresenceReceived(QXmppPresence)));
Q_ASSERT(check);
check = connect(callManager, SIGNAL(callReceived(QXmppCall*)),
this, SLOT(slotCallReceived(QXmppCall*)));
Q_ASSERT(check);
check = connect(&m_dns, SIGNAL(finished()),
this, SLOT(slotDnsLookupFinished()));
Q_ASSERT(check);
}
void xmppClient::setRecipient(const QString &recipient)
{
m_recipient = recipient;
}
/// The audio mode of a call changed.
void xmppClient::slotAudioModeChanged(QIODevice::OpenMode mode)
{
QXmppCall *call = qobject_cast<QXmppCall*>(sender());
Q_ASSERT(call);
QXmppRtpAudioChannel *channel = call->audioChannel();
// prepare audio format
QAudioFormat format;
format.setFrequency(channel->payloadType().clockrate());
format.setChannels(channel->payloadType().channels());
format.setSampleSize(16);
format.setCodec("audio/pcm");
format.setByteOrder(QAudioFormat::LittleEndian);
format.setSampleType(QAudioFormat::SignedInt);
// the size in bytes of the audio buffers to/from sound devices
// 160 ms seems to be the minimum to work consistently on Linux/Mac/Windows
const int bufferSize = (format.frequency() * format.channels() * (format.sampleSize() / 8) * 160) / 1000;
if (mode & QIODevice::ReadOnly) {
// initialise audio output
QAudioOutput *audioOutput = new QAudioOutput(format, this);
audioOutput->setBufferSize(bufferSize);
audioOutput->start(channel);
}
if (mode & QIODevice::WriteOnly) {
// initialise audio input
QAudioInput *audioInput = new QAudioInput(format, this);
audioInput->setBufferSize(bufferSize);
audioInput->start(channel);
}
}
/// A call was received.
void xmppClient::slotCallReceived(QXmppCall *call)
{
bool check;
Q_UNUSED(check);
qDebug() << "Got call from:" << call->jid();
check = connect(call, SIGNAL(stateChanged(QXmppCall::State)),
this, SLOT(slotCallStateChanged(QXmppCall::State)));
Q_ASSERT(check);
check = connect(call, SIGNAL(audioModeChanged(QIODevice::OpenMode)),
this, SLOT(slotAudioModeChanged(QIODevice::OpenMode)));
Q_ASSERT(check);
// accept call
call->accept();
}
/// A call changed state.
void xmppClient::slotCallStateChanged(QXmppCall::State state)
{
if (state == QXmppCall::ActiveState)
qDebug("Call active");
else if (state == QXmppCall::DisconnectingState)
qDebug("Call disconnecting");
else if (state == QXmppCall::FinishedState)
qDebug("Call finished");
}
void xmppClient::slotConnected()
{
// lookup TURN server
const QString domain = configuration().domain();
debug(QString("Looking up TURN server for domain %1").arg(domain));
m_dns.setType(QDnsLookup::SRV);
m_dns.setName("_turn._udp." + domain);
m_dns.lookup();
}
/// The DNS SRV lookup for TURN completed.
void xmppClient::slotDnsLookupFinished()
{
QString serverName;
if (m_dns.error() == QDnsLookup::NoError && !m_dns.serviceRecords().isEmpty()) {
m_turnPort = m_dns.serviceRecords().first().port();
QHostInfo::lookupHost(m_dns.serviceRecords().first().target(),
this, SLOT(slotHostInfoFinished(QHostInfo)));
} else {
warning("Could not find STUN server for domain " + configuration().domain());
m_turnFinished = true;
startCall();
}
}
void xmppClient::slotHostInfoFinished(const QHostInfo &hostInfo)
{
if (!hostInfo.addresses().isEmpty()) {
info(QString("Found TURN server %1 port %2 for domain %3").arg(hostInfo.addresses().first().toString(), QString::number(m_turnPort), configuration().domain()));
callManager->setTurnServer(hostInfo.addresses().first(), m_turnPort);
callManager->setTurnUser(configuration().user());
callManager->setTurnPassword(configuration().password());
}
m_turnFinished = true;
startCall();
}
/// A presence was received.
void xmppClient::slotPresenceReceived(const QXmppPresence &presence)
{
// if we don't have a recipient, or if the presence is not from the recipient,
// do nothing
if (m_recipient.isEmpty() ||
QXmppUtils::jidToBareJid(presence.from()) != m_recipient ||
presence.type() != QXmppPresence::Available)
return;
// start the call and connect to the its signals
m_recipientFullJid = presence.from();
startCall();
}
void xmppClient::startCall()
{
bool check;
Q_UNUSED(check);
if (!m_turnFinished || m_recipientFullJid.isEmpty())
return;
// start the call and connect to the its signals
QXmppCall *call = callManager->call(m_recipientFullJid);
check = connect(call, SIGNAL(stateChanged(QXmppCall::State)),
this, SLOT(slotCallStateChanged(QXmppCall::State)));
Q_ASSERT(check);
check = connect(call, SIGNAL(audioModeChanged(QIODevice::OpenMode)),
this, SLOT(slotAudioModeChanged(QIODevice::OpenMode)));
Q_ASSERT(check);
}
int main(int argc, char *argv[])
{
QCoreApplication a(argc, argv);
// we want one argument : "send" or "receive"
if (argc != 2 || (strcmp(argv[1], "send") && strcmp(argv[1], "receive")))
{
fprintf(stderr, "Usage: %s send|receive\n", argv[0]);
return EXIT_FAILURE;
}
xmppClient client;
client.logger()->setLoggingType(QXmppLogger::StdoutLogging);
if (!strcmp(argv[1], "send")) {
client.setRecipient("qxmpp.test2@qxmpp.org");
client.connectToServer("qxmpp.test1@qxmpp.org", "qxmpp123");
} else {
client.connectToServer("qxmpp.test2@qxmpp.org", "qxmpp456");
}
return a.exec();
}
|
