0
|
1 |
/****************************************************************************
|
|
2 |
**
|
|
3 |
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
|
|
4 |
** All rights reserved.
|
|
5 |
** Contact: Nokia Corporation (qt-info@nokia.com)
|
|
6 |
**
|
|
7 |
** This file is part of the documentation of the Qt Toolkit.
|
|
8 |
**
|
|
9 |
** $QT_BEGIN_LICENSE:LGPL$
|
|
10 |
** No Commercial Usage
|
|
11 |
** This file contains pre-release code and may not be distributed.
|
|
12 |
** You may use this file in accordance with the terms and conditions
|
|
13 |
** contained in the Technology Preview License Agreement accompanying
|
|
14 |
** this package.
|
|
15 |
**
|
|
16 |
** GNU Lesser General Public License Usage
|
|
17 |
** Alternatively, this file may be used under the terms of the GNU Lesser
|
|
18 |
** General Public License version 2.1 as published by the Free Software
|
|
19 |
** Foundation and appearing in the file LICENSE.LGPL included in the
|
|
20 |
** packaging of this file. Please review the following information to
|
|
21 |
** ensure the GNU Lesser General Public License version 2.1 requirements
|
|
22 |
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
|
|
23 |
**
|
|
24 |
** In addition, as a special exception, Nokia gives you certain additional
|
|
25 |
** rights. These rights are described in the Nokia Qt LGPL Exception
|
|
26 |
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
|
|
27 |
**
|
|
28 |
** If you have questions regarding the use of this file, please contact
|
|
29 |
** Nokia at qt-info@nokia.com.
|
|
30 |
**
|
|
31 |
**
|
|
32 |
**
|
|
33 |
**
|
|
34 |
**
|
|
35 |
**
|
|
36 |
**
|
|
37 |
**
|
|
38 |
** $QT_END_LICENSE$
|
|
39 |
**
|
|
40 |
****************************************************************************/
|
|
41 |
|
|
42 |
//! [0]
|
|
43 |
PushStream::PushStream(QObject *parent)
|
|
44 |
: AbstractMediaStream(parent), m_timer(new QTimer(this))
|
|
45 |
{
|
|
46 |
setStreamSize(getMediaStreamSize());
|
|
47 |
|
|
48 |
connect(m_timer, SIGNAL(timeout()), SLOT(moreData()));
|
|
49 |
m_timer->setInterval(0);
|
|
50 |
}
|
|
51 |
|
|
52 |
void PushStream::moreData()
|
|
53 |
{
|
|
54 |
const QByteArray data = getMediaData();
|
|
55 |
if (data.isEmpty()) {
|
|
56 |
endOfData();
|
|
57 |
} else {
|
|
58 |
writeData(data);
|
|
59 |
}
|
|
60 |
}
|
|
61 |
|
|
62 |
void PushStream::needData()
|
|
63 |
{
|
|
64 |
m_timer->start();
|
|
65 |
moreData();
|
|
66 |
}
|
|
67 |
|
|
68 |
void PushStream::enoughData()
|
|
69 |
{
|
|
70 |
m_timer->stop();
|
|
71 |
}
|
|
72 |
//! [0]
|
|
73 |
|
|
74 |
|
|
75 |
//! [1]
|
|
76 |
PullStream::PullStream(QObject *parent)
|
|
77 |
: AbstractMediaStream(parent)
|
|
78 |
{
|
|
79 |
setStreamSize(getMediaStreamSize());
|
|
80 |
}
|
|
81 |
|
|
82 |
void PullStream::needData()
|
|
83 |
{
|
|
84 |
const QByteArray data = getMediaData();
|
|
85 |
if (data.isEmpty()) {
|
|
86 |
endOfData();
|
|
87 |
} else {
|
|
88 |
writeData(data);
|
|
89 |
}
|
|
90 |
}
|
|
91 |
//! [1]
|
|
92 |
|
|
93 |
|
|
94 |
//! [2]
|
|
95 |
seekStream(0);
|
|
96 |
//! [2]
|
|
97 |
|
|
98 |
|
|
99 |
//! [3]
|
|
100 |
MediaObject m;
|
|
101 |
QString fileName("/home/foo/bar.ogg");
|
|
102 |
QUrl url("http://www.example.com/stream.mp3");
|
|
103 |
QBuffer *someBuffer;
|
|
104 |
m.setCurrentSource(fileName);
|
|
105 |
m.setCurrentSource(url);
|
|
106 |
m.setCurrentSource(someBuffer);
|
|
107 |
m.setCurrentSource(Phonon::Cd);
|
|
108 |
//! [3]
|
|
109 |
|
|
110 |
|
|
111 |
//! [4]
|
|
112 |
VideoPlayer *player = new VideoPlayer(Phonon::VideoCategory, parentWidget);
|
|
113 |
connect(player, SIGNAL(finished()), player, SLOT(deleteLater()));
|
|
114 |
player->play(url);
|
|
115 |
//! [4]
|
|
116 |
|
|
117 |
|
|
118 |
//! [5]
|
|
119 |
audioPlayer->load(url);
|
|
120 |
audioPlayer->play();
|
|
121 |
//! [5]
|
|
122 |
|
|
123 |
|
|
124 |
//! [6]
|
|
125 |
media = new MediaObject(this);
|
|
126 |
connect(media, SIGNAL(finished()), SLOT(slotFinished());
|
|
127 |
media->setCurrentSource("/home/username/music/filename.ogg");
|
|
128 |
|
|
129 |
...
|
|
130 |
|
|
131 |
media->play();
|
|
132 |
//! [6]
|
|
133 |
|
|
134 |
|
|
135 |
//! [7]
|
|
136 |
media->setCurrentSource(":/sounds/startsound.ogg");
|
|
137 |
media->enqueue("/home/username/music/song.mp3");
|
|
138 |
media->enqueue(":/sounds/endsound.ogg");
|
|
139 |
//! [7]
|
|
140 |
|
|
141 |
|
|
142 |
//! [8]
|
|
143 |
media->setCurrentSource(":/sounds/startsound.ogg");
|
|
144 |
connect(media, SIGNAL(aboutToFinish()), SLOT(enqueueNextSource()));
|
|
145 |
}
|
|
146 |
|
|
147 |
void enqueueNextSource()
|
|
148 |
{
|
|
149 |
media->enqueue("/home/username/music/song.mp3");
|
|
150 |
}
|
|
151 |
//! [8]
|
|
152 |
|
|
153 |
|
|
154 |
//! [9]
|
|
155 |
int x = 200;
|
|
156 |
media->setTickInterval(x);
|
|
157 |
Q_ASSERT(x == producer->tickInterval());
|
|
158 |
//! [9]
|
|
159 |
|
|
160 |
|
|
161 |
//! [10]
|
|
162 |
int x = 200;
|
|
163 |
media->setTickInterval(x);
|
|
164 |
Q_ASSERT(x >= producer->tickInterval() &&
|
|
165 |
x <= 2producer->tickInterval());
|
|
166 |
//! [10]
|
|
167 |
|
|
168 |
|
|
169 |
//! [11]
|
|
170 |
connect(media, SIGNAL(hasVideoChanged(bool)), hasVideoChanged(bool));
|
|
171 |
media->setCurrentSource("somevideo.avi");
|
|
172 |
media->hasVideo(); // returns false;
|
|
173 |
}
|
|
174 |
|
|
175 |
void hasVideoChanged(bool b)
|
|
176 |
{
|
|
177 |
// b == true
|
|
178 |
media->hasVideo(); // returns true;
|
|
179 |
}
|
|
180 |
//! [11]
|
|
181 |
|
|
182 |
|
|
183 |
//! [12]
|
|
184 |
connect(media, SIGNAL(hasVideoChanged(bool)), hasVideoChanged(bool));
|
|
185 |
media->setCurrentSource("somevideo.avi");
|
|
186 |
media->hasVideo(); // returns false;
|
|
187 |
}
|
|
188 |
|
|
189 |
void hasVideoChanged(bool b)
|
|
190 |
{
|
|
191 |
// b == true
|
|
192 |
media->hasVideo(); // returns true;
|
|
193 |
}
|
|
194 |
//! [12]
|
|
195 |
|
|
196 |
|
|
197 |
//! [13]
|
|
198 |
setMetaArtist(media->metaData("ARTIST"));
|
|
199 |
setMetaAlbum(media->metaData("ALBUM"));
|
|
200 |
setMetaTitle(media->metaData("TITLE"));
|
|
201 |
setMetaDate(media->metaData("DATE"));
|
|
202 |
setMetaGenre(media->metaData("GENRE"));
|
|
203 |
setMetaTrack(media->metaData("TRACKNUMBER"));
|
|
204 |
setMetaComment(media->metaData("DESCRIPTION"));
|
|
205 |
//! [13]
|
|
206 |
|
|
207 |
|
|
208 |
//! [14]
|
|
209 |
QUrl url("http://www.example.com/music.ogg");
|
|
210 |
media->setCurrentSource(url);
|
|
211 |
//! [14]
|
|
212 |
|
|
213 |
|
|
214 |
//! [15]
|
|
215 |
progressBar->setRange(0, 100); // this is the default
|
|
216 |
connect(media, SIGNAL(bufferStatus(int)), progressBar, SLOT(setValue(int)));
|
|
217 |
//! [15]
|
|
218 |
|
|
219 |
|
|
220 |
//! [16]
|
|
221 |
QObject::connect(BackendCapabilities::notifier(), SIGNAL(capabilitiesChanged()), ...
|
|
222 |
//! [16]
|
|
223 |
|
|
224 |
|
|
225 |
//! [17]
|
|
226 |
QComboBox *cb = new QComboBox(parentWidget);
|
|
227 |
ObjectDescriptionModel *model = new ObjectDescriptionModel(cb);
|
|
228 |
model->setModelData(BackendCapabilities::availableAudioOutputDevices());
|
|
229 |
cb->setModel(model);
|
|
230 |
cb->setCurrentIndex(0); // select first entry
|
|
231 |
//! [17]
|
|
232 |
|
|
233 |
|
|
234 |
//! [18]
|
|
235 |
int cbIndex = cb->currentIndex();
|
|
236 |
AudioOutputDevice selectedDevice = model->modelData(cbIndex);
|
|
237 |
//! [18]
|
|
238 |
|
|
239 |
|
|
240 |
//! [19]
|
|
241 |
Path path = Phonon::createPath(...);
|
|
242 |
Effect *effect = new Effect(this);
|
|
243 |
path.insertEffect(effect);
|
|
244 |
//! [19]
|
|
245 |
|
|
246 |
|
|
247 |
//! [20]
|
|
248 |
MediaObject *media = new MediaObject;
|
|
249 |
AudioOutput *output = new AudioOutput(Phonon::MusicCategory);
|
|
250 |
Path path = Phonon::createPath(media, output);
|
|
251 |
Q_ASSERT(path.isValid()); // for this simple case the path should always be
|
|
252 |
//valid - there are unit tests to ensure it
|
|
253 |
// insert an effect
|
|
254 |
QList<EffectDescription> effectList = BackendCapabilities::availableAudioEffects();
|
|
255 |
if (!effectList.isEmpty()) {
|
|
256 |
Effect *effect = path.insertEffect(effectList.first());
|
|
257 |
}
|
|
258 |
//! [20]
|
|
259 |
|
|
260 |
|
|
261 |
//! [21]
|
|
262 |
MediaObject *media = new MediaObject(parent);
|
|
263 |
VideoWidget *vwidget = new VideoWidget(parent);
|
|
264 |
Phonon::createPath(media, vwidget);
|
|
265 |
//! [21]
|