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
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
|
/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtMultimedia module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtMultimedia/qaudioengine.h>
QT_BEGIN_NAMESPACE
/*!
\class QAbstractAudioDeviceInfo
\brief The QAbstractAudioDeviceInfo class provides access for QAudioDeviceInfo to access the audio
device provided by the plugin.
\internal
\ingroup multimedia
This class implements the audio functionality for
QAudioDeviceInfo, i.e., QAudioDeviceInfo keeps a
QAbstractAudioDeviceInfo and routes function calls to it. For a
description of the functionality that QAbstractAudioDeviceInfo
implements, you can read the class and functions documentation of
QAudioDeviceInfo.
\sa QAudioDeviceInfo
*/
/*!
\fn virtual QAudioFormat QAbstractAudioDeviceInfo::preferredFormat() const
Returns the nearest settings.
*/
/*!
\fn virtual bool QAbstractAudioDeviceInfo::isFormatSupported(const QAudioFormat& format) const
Returns true if \a format is available from audio device.
*/
/*!
\fn virtual QAudioFormat QAbstractAudioDeviceInfo::nearestFormat(const QAudioFormat& format) const
Returns the nearest settings \a format.
*/
/*!
\fn virtual QString QAbstractAudioDeviceInfo::deviceName() const
Returns the audio device name.
*/
/*!
\fn virtual QStringList QAbstractAudioDeviceInfo::codecList()
Returns the list of currently available codecs.
*/
/*!
\fn virtual QList<int> QAbstractAudioDeviceInfo::frequencyList()
Returns the list of currently available frequencies.
*/
/*!
\fn virtual QList<int> QAbstractAudioDeviceInfo::channelsList()
Returns the list of currently available channels.
*/
/*!
\fn virtual QList<int> QAbstractAudioDeviceInfo::sampleSizeList()
Returns the list of currently available sample sizes.
*/
/*!
\fn virtual QList<QAudioFormat::Endian> QAbstractAudioDeviceInfo::byteOrderList()
Returns the list of currently available byte orders.
*/
/*!
\fn virtual QList<QAudioFormat::SampleType> QAbstractAudioDeviceInfo::sampleTypeList()
Returns the list of currently available sample types.
*/
/*!
\class QAbstractAudioOutput
\brief The QAbstractAudioOutput class provides access for QAudioOutput to access the audio
device provided by the plugin.
\internal
\ingroup multimedia
QAbstractAudioOutput implements audio functionality for
QAudioOutput, i.e., QAudioOutput routes function calls to
QAbstractAudioOutput. For a description of the functionality that
is implemented, see the QAudioOutput class and function
descriptions.
\sa QAudioOutput
*/
/*!
\fn virtual QIODevice* QAbstractAudioOutput::start(QIODevice* device)
Uses the \a device as the QIODevice to transfer data. If \a device is null then the class
creates an internal QIODevice. Returns a pointer to the QIODevice being used to handle
the data transfer. This QIODevice can be used to write() audio data directly. Passing a
QIODevice allows the data to be transfered without any extra code.
*/
/*!
\fn virtual void QAbstractAudioOutput::stop()
Stops the audio output.
*/
/*!
\fn virtual void QAbstractAudioOutput::reset()
Drops all audio data in the buffers, resets buffers to zero.
*/
/*!
\fn virtual void QAbstractAudioOutput::suspend()
Stops processing audio data, preserving buffered audio data.
*/
/*!
\fn virtual void QAbstractAudioOutput::resume()
Resumes processing audio data after a suspend()
*/
/*!
\fn virtual int QAbstractAudioOutput::bytesFree() const
Returns the free space available in bytes in the audio buffer.
*/
/*!
\fn virtual int QAbstractAudioOutput::periodSize() const
Returns the period size in bytes.
*/
/*!
\fn virtual void QAbstractAudioOutput::setBufferSize(int value)
Sets the audio buffer size to \a value in bytes.
*/
/*!
\fn virtual int QAbstractAudioOutput::bufferSize() const
Returns the audio buffer size in bytes.
*/
/*!
\fn virtual void QAbstractAudioOutput::setNotifyInterval(int ms)
Sets the interval for notify() signal to be emitted. This is based on the \a ms
of audio data processed not on actual real-time. The resolution of the timer
is platform specific.
*/
/*!
\fn virtual int QAbstractAudioOutput::notifyInterval() const
Returns the notify interval in milliseconds.
*/
/*!
\fn virtual qint64 QAbstractAudioOutput::processedUSecs() const
Returns the amount of audio data processed since start() was called in milliseconds.
*/
/*!
\fn virtual qint64 QAbstractAudioOutput::elapsedUSecs() const
Returns the milliseconds since start() was called, including time in Idle and suspend states.
*/
/*!
\fn virtual QAudio::Error QAbstractAudioOutput::error() const
Returns the error state.
*/
/*!
\fn virtual QAudio::State QAbstractAudioOutput::state() const
Returns the state of audio processing.
*/
/*!
\fn virtual QAudioFormat QAbstractAudioOutput::format() const
Returns the QAudioFormat being used.
*/
/*!
\fn QAbstractAudioOutput::stateChanged(QAudio::State state)
This signal is emitted when the device \a state has changed.
*/
/*!
\fn QAbstractAudioOutput::notify()
This signal is emitted when x ms of audio data has been processed
the interval set by setNotifyInterval(x).
*/
/*!
\class QAbstractAudioInput
\brief The QAbstractAudioInput class provides access for QAudioInput to access the audio
device provided by the plugin.
\internal
\ingroup multimedia
QAudioDeviceInput keeps an instance of QAbstractAudioInput and
routes calls to functions of the same name to QAbstractAudioInput.
This means that it is QAbstractAudioInput that implements the
audio functionality. For a description of the functionality, see
the QAudioInput class description.
\sa QAudioInput
*/
/*!
\fn virtual QIODevice* QAbstractAudioInput::start(QIODevice* device)
Uses the \a device as the QIODevice to transfer data. If \a device is null
then the class creates an internal QIODevice. Returns a pointer to the
QIODevice being used to handle the data transfer. This QIODevice can be used to
read() audio data directly. Passing a QIODevice allows the data to be transfered
without any extra code.
*/
/*!
\fn virtual void QAbstractAudioInput::stop()
Stops the audio input.
*/
/*!
\fn virtual void QAbstractAudioInput::reset()
Drops all audio data in the buffers, resets buffers to zero.
*/
/*!
\fn virtual void QAbstractAudioInput::suspend()
Stops processing audio data, preserving buffered audio data.
*/
/*!
\fn virtual void QAbstractAudioInput::resume()
Resumes processing audio data after a suspend().
*/
/*!
\fn virtual int QAbstractAudioInput::bytesReady() const
Returns the amount of audio data available to read in bytes.
*/
/*!
\fn virtual int QAbstractAudioInput::periodSize() const
Returns the period size in bytes.
*/
/*!
\fn virtual void QAbstractAudioInput::setBufferSize(int value)
Sets the audio buffer size to \a value in milliseconds.
*/
/*!
\fn virtual int QAbstractAudioInput::bufferSize() const
Returns the audio buffer size in milliseconds.
*/
/*!
\fn virtual void QAbstractAudioInput::setNotifyInterval(int ms)
Sets the interval for notify() signal to be emitted. This is based
on the \a ms of audio data processed not on actual real-time.
The resolution of the timer is platform specific.
*/
/*!
\fn virtual int QAbstractAudioInput::notifyInterval() const
Returns the notify interval in milliseconds.
*/
/*!
\fn virtual qint64 QAbstractAudioInput::processedUSecs() const
Returns the amount of audio data processed since start() was called in milliseconds.
*/
/*!
\fn virtual qint64 QAbstractAudioInput::elapsedUSecs() const
Returns the milliseconds since start() was called, including time in Idle and suspend states.
*/
/*!
\fn virtual QAudio::Error QAbstractAudioInput::error() const
Returns the error state.
*/
/*!
\fn virtual QAudio::State QAbstractAudioInput::state() const
Returns the state of audio processing.
*/
/*!
\fn virtual QAudioFormat QAbstractAudioInput::format() const
Returns the QAudioFormat being used
*/
/*!
\fn QAbstractAudioInput::stateChanged(QAudio::State state)
This signal is emitted when the device \a state has changed.
*/
/*!
\fn QAbstractAudioInput::notify()
This signal is emitted when x ms of audio data has been processed
the interval set by setNotifyInterval(x).
*/
QT_END_NAMESPACE
|
