source: trunk/examples/multimedia/audiodevices/audiodevices.cpp

Last change on this file was 846, checked in by Dmitry A. Kuminov, 14 years ago

trunk: Merged in qt 4.7.2 sources from branches/vendor/nokia/qt.
  • Property svn:eol-style set to native
File size: 10.9 KB
Line 
1/****************************************************************************
2**
3** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
4** All rights reserved.
5** Contact: Nokia Corporation ([email protected])
6**
7** This file is part of the examples of the Qt Toolkit.
8**
9** $QT_BEGIN_LICENSE:BSD$
10** You may use this file under the terms of the BSD license as follows:
11**
12** "Redistribution and use in source and binary forms, with or without
13** modification, are permitted provided that the following conditions are
14** met:
15** * Redistributions of source code must retain the above copyright
16** notice, this list of conditions and the following disclaimer.
17** * Redistributions in binary form must reproduce the above copyright
18** notice, this list of conditions and the following disclaimer in
19** the documentation and/or other materials provided with the
20** distribution.
21** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
22** the names of its contributors may be used to endorse or promote
23** products derived from this software without specific prior written
24** permission.
25**
26** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
27** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
28** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
29** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
30** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
31** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
32** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
33** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
34** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
35** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
36** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
37** $QT_END_LICENSE$
38**
39****************************************************************************/
40
41
42#include <QAudioDeviceInfo>
43
44#include "audiodevices.h"
45
46// Utility functions for converting QAudioFormat fields into text
47
48QString toString(QAudioFormat::SampleType sampleType)
49{
50 QString result("Unknown");
51 switch (sampleType) {
52 case QAudioFormat::SignedInt:
53 result = "SignedInt";
54 break;
55 case QAudioFormat::UnSignedInt:
56 result = "UnSignedInt";
57 break;
58 case QAudioFormat::Float:
59 result = "Float";
60 break;
61 case QAudioFormat::Unknown:
62 break;
63 }
64 return result;
65}
66
67QString toString(QAudioFormat::Endian endian)
68{
69 QString result("Unknown");
70 switch (endian) {
71 case QAudioFormat::LittleEndian:
72 result = "LittleEndian";
73 break;
74 case QAudioFormat::BigEndian:
75 result = "BigEndian";
76 break;
77 }
78 return result;
79}
80
81
82AudioDevicesBase::AudioDevicesBase(QWidget *parent, Qt::WFlags f)
83 : QMainWindow(parent, f)
84{
85 setupUi(this);
86}
87
88AudioDevicesBase::~AudioDevicesBase() {}
89
90
91AudioTest::AudioTest(QWidget *parent, Qt::WFlags f)
92 : AudioDevicesBase(parent, f)
93{
94 mode = QAudio::AudioOutput;
95
96 connect(testButton, SIGNAL(clicked()), SLOT(test()));
97 connect(modeBox, SIGNAL(activated(int)), SLOT(modeChanged(int)));
98 connect(deviceBox, SIGNAL(activated(int)), SLOT(deviceChanged(int)));
99 connect(frequencyBox, SIGNAL(activated(int)), SLOT(freqChanged(int)));
100 connect(channelsBox, SIGNAL(activated(int)), SLOT(channelChanged(int)));
101 connect(codecsBox, SIGNAL(activated(int)), SLOT(codecChanged(int)));
102 connect(sampleSizesBox, SIGNAL(activated(int)), SLOT(sampleSizeChanged(int)));
103 connect(sampleTypesBox, SIGNAL(activated(int)), SLOT(sampleTypeChanged(int)));
104 connect(endianBox, SIGNAL(activated(int)), SLOT(endianChanged(int)));
105 connect(populateTableButton, SIGNAL(clicked()), SLOT(populateTable()));
106
107 modeBox->setCurrentIndex(0);
108 modeChanged(0);
109 deviceBox->setCurrentIndex(0);
110 deviceChanged(0);
111}
112
113AudioTest::~AudioTest()
114{
115}
116
117void AudioTest::test()
118{
119 // tries to set all the settings picked.
120 testResult->clear();
121
122 if (!deviceInfo.isNull()) {
123 if (deviceInfo.isFormatSupported(settings)) {
124 testResult->setText(tr("Success"));
125 nearestFreq->setText("");
126 nearestChannel->setText("");
127 nearestCodec->setText("");
128 nearestSampleSize->setText("");
129 nearestSampleType->setText("");
130 nearestEndian->setText("");
131 } else {
132 QAudioFormat nearest = deviceInfo.nearestFormat(settings);
133 testResult->setText(tr("Failed"));
134 nearestFreq->setText(QString("%1").arg(nearest.frequency()));
135 nearestChannel->setText(QString("%1").arg(nearest.channels()));
136 nearestCodec->setText(nearest.codec());
137 nearestSampleSize->setText(QString("%1").arg(nearest.sampleSize()));
138 nearestSampleType->setText(toString(nearest.sampleType()));
139 nearestEndian->setText(toString(nearest.byteOrder()));
140 }
141 }
142 else
143 testResult->setText(tr("No Device"));
144}
145
146void AudioTest::modeChanged(int idx)
147{
148 testResult->clear();
149
150 // mode has changed
151 if (idx == 0)
152 mode = QAudio::AudioInput;
153 else
154 mode = QAudio::AudioOutput;
155
156 deviceBox->clear();
157 foreach (const QAudioDeviceInfo &deviceInfo, QAudioDeviceInfo::availableDevices(mode))
158 deviceBox->addItem(deviceInfo.deviceName(), qVariantFromValue(deviceInfo));
159
160 deviceBox->setCurrentIndex(0);
161 deviceChanged(0);
162}
163
164void AudioTest::deviceChanged(int idx)
165{
166 testResult->clear();
167
168 if (deviceBox->count() == 0)
169 return;
170
171 // device has changed
172 deviceInfo = deviceBox->itemData(idx).value<QAudioDeviceInfo>();
173
174 frequencyBox->clear();
175 QList<int> freqz = deviceInfo.supportedFrequencies();
176 for(int i = 0; i < freqz.size(); ++i)
177 frequencyBox->addItem(QString("%1").arg(freqz.at(i)));
178 if(freqz.size())
179 settings.setFrequency(freqz.at(0));
180
181 channelsBox->clear();
182 QList<int> chz = deviceInfo.supportedChannels();
183 for(int i = 0; i < chz.size(); ++i)
184 channelsBox->addItem(QString("%1").arg(chz.at(i)));
185 if(chz.size())
186 settings.setChannels(chz.at(0));
187
188 codecsBox->clear();
189 QStringList codecz = deviceInfo.supportedCodecs();
190 for (int i = 0; i < codecz.size(); ++i)
191 codecsBox->addItem(QString("%1").arg(codecz.at(i)));
192 if (codecz.size())
193 settings.setCodec(codecz.at(0));
194 // Add false to create failed condition!
195 codecsBox->addItem("audio/test");
196
197 sampleSizesBox->clear();
198 QList<int> sampleSizez = deviceInfo.supportedSampleSizes();
199 for (int i = 0; i < sampleSizez.size(); ++i)
200 sampleSizesBox->addItem(QString("%1").arg(sampleSizez.at(i)));
201 if (sampleSizez.size())
202 settings.setSampleSize(sampleSizez.at(0));
203
204 sampleTypesBox->clear();
205 QList<QAudioFormat::SampleType> sampleTypez = deviceInfo.supportedSampleTypes();
206
207 for (int i = 0; i < sampleTypez.size(); ++i)
208 sampleTypesBox->addItem(toString(sampleTypez.at(i)));
209 if (sampleTypez.size())
210 settings.setSampleType(sampleTypez.at(0));
211
212 endianBox->clear();
213 QList<QAudioFormat::Endian> endianz = deviceInfo.supportedByteOrders();
214 for (int i = 0; i < endianz.size(); ++i)
215 endianBox->addItem(toString(endianz.at(i)));
216 if (endianz.size())
217 settings.setByteOrder(endianz.at(0));
218
219 allFormatsTable->clearContents();
220}
221
222void AudioTest::populateTable()
223{
224 int row = 0;
225
226 QAudioFormat format;
227 foreach (QString codec, deviceInfo.supportedCodecs()) {
228 format.setCodec(codec);
229 foreach (int frequency, deviceInfo.supportedFrequencies()) {
230 format.setFrequency(frequency);
231 foreach (int channels, deviceInfo.supportedChannels()) {
232 format.setChannels(channels);
233 foreach (QAudioFormat::SampleType sampleType, deviceInfo.supportedSampleTypes()) {
234 format.setSampleType(sampleType);
235 foreach (int sampleSize, deviceInfo.supportedSampleSizes()) {
236 format.setSampleSize(sampleSize);
237 foreach (QAudioFormat::Endian endian, deviceInfo.supportedByteOrders()) {
238 format.setByteOrder(endian);
239 if (deviceInfo.isFormatSupported(format)) {
240 allFormatsTable->setRowCount(row + 1);
241
242 QTableWidgetItem *codecItem = new QTableWidgetItem(format.codec());
243 allFormatsTable->setItem(row, 0, codecItem);
244
245 QTableWidgetItem *frequencyItem = new QTableWidgetItem(QString("%1").arg(format.frequency()));
246 allFormatsTable->setItem(row, 1, frequencyItem);
247
248 QTableWidgetItem *channelsItem = new QTableWidgetItem(QString("%1").arg(format.channels()));
249 allFormatsTable->setItem(row, 2, channelsItem);
250
251 QTableWidgetItem *sampleTypeItem = new QTableWidgetItem(toString(format.sampleType()));
252 allFormatsTable->setItem(row, 3, sampleTypeItem);
253
254 QTableWidgetItem *sampleSizeItem = new QTableWidgetItem(QString("%1").arg(format.sampleSize()));
255 allFormatsTable->setItem(row, 4, sampleSizeItem);
256
257 QTableWidgetItem *byteOrderItem = new QTableWidgetItem(toString(format.byteOrder()));
258 allFormatsTable->setItem(row, 5, byteOrderItem);
259
260 ++row;
261 }
262 }
263 }
264 }
265 }
266 }
267 }
268}
269
270void AudioTest::freqChanged(int idx)
271{
272 // freq has changed
273 settings.setFrequency(frequencyBox->itemText(idx).toInt());
274}
275
276void AudioTest::channelChanged(int idx)
277{
278 settings.setChannels(channelsBox->itemText(idx).toInt());
279}
280
281void AudioTest::codecChanged(int idx)
282{
283 settings.setCodec(codecsBox->itemText(idx));
284}
285
286void AudioTest::sampleSizeChanged(int idx)
287{
288 settings.setSampleSize(sampleSizesBox->itemText(idx).toInt());
289}
290
291void AudioTest::sampleTypeChanged(int idx)
292{
293 switch (sampleTypesBox->itemText(idx).toInt()) {
294 case QAudioFormat::SignedInt:
295 settings.setSampleType(QAudioFormat::SignedInt);
296 break;
297 case QAudioFormat::UnSignedInt:
298 settings.setSampleType(QAudioFormat::UnSignedInt);
299 break;
300 case QAudioFormat::Float:
301 settings.setSampleType(QAudioFormat::Float);
302 }
303}
304
305void AudioTest::endianChanged(int idx)
306{
307 switch (endianBox->itemText(idx).toInt()) {
308 case QAudioFormat::LittleEndian:
309 settings.setByteOrder(QAudioFormat::LittleEndian);
310 break;
311 case QAudioFormat::BigEndian:
312 settings.setByteOrder(QAudioFormat::BigEndian);
313 }
314}
Note: See TracBrowser for help on using the repository browser.