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1 /**************************************************************************** |
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2 ** |
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3 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). |
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4 ** All rights reserved. |
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5 ** Contact: Nokia Corporation (qt-info@nokia.com) |
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6 ** |
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7 ** This file is part of the test suite of the Qt Toolkit. |
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8 ** |
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9 ** $QT_BEGIN_LICENSE:LGPL$ |
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10 ** No Commercial Usage |
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11 ** This file contains pre-release code and may not be distributed. |
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12 ** You may use this file in accordance with the terms and conditions |
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13 ** contained in the Technology Preview License Agreement accompanying |
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14 ** this package. |
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15 ** |
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16 ** GNU Lesser General Public License Usage |
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17 ** Alternatively, this file may be used under the terms of the GNU Lesser |
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18 ** General Public License version 2.1 as published by the Free Software |
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19 ** Foundation and appearing in the file LICENSE.LGPL included in the |
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20 ** packaging of this file. Please review the following information to |
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21 ** ensure the GNU Lesser General Public License version 2.1 requirements |
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22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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23 ** |
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24 ** In addition, as a special exception, Nokia gives you certain additional |
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25 ** rights. These rights are described in the Nokia Qt LGPL Exception |
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26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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27 ** |
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28 ** If you have questions regarding the use of this file, please contact |
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29 ** Nokia at qt-info@nokia.com. |
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30 ** |
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31 ** |
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32 ** |
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33 ** |
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34 ** |
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35 ** |
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36 ** |
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37 ** |
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38 ** $QT_END_LICENSE$ |
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39 ** |
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40 ****************************************************************************/ |
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41 |
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42 #include <QtGui> |
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43 |
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44 #include <QAudioOutput> |
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45 #include <QAudioDeviceInfo> |
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46 #include <QAudioInput> |
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47 |
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48 class Window2 : public QWidget |
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49 { |
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50 Q_OBJECT |
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51 |
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52 public slots: |
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53 //![0] |
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54 void stateChanged(QAudio::State newState) |
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55 { |
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56 switch(newState) { |
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57 case QAudio::StopState: |
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58 if (input->error() != QAudio::NoError) { |
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59 // Error handling |
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60 } else { |
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61 |
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62 } |
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63 break; |
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64 //![0] |
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65 default: |
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66 ; |
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67 } |
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68 } |
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69 |
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70 private: |
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71 QAudioInput *input; |
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72 |
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73 }; |
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74 |
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75 class Window : public QWidget |
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76 { |
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77 Q_OBJECT |
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78 |
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79 public: |
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80 Window() |
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81 { |
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82 output = new QAudioOutput; |
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83 connect(output, SIGNAL(stateChanged(QAudio::State)), |
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84 this, SLOT(stateChanged(QAudio::State))); |
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85 } |
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86 |
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87 private: |
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88 void setupFormat() |
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89 { |
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90 //![1] |
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91 QAudioFormat format; |
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92 format.setFrequency(44100); |
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93 //![1] |
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94 format.setChannels(2); |
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95 format.setSampleSize(16); |
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96 format.setCodec("audio/pcm"); |
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97 format.setByteOrder(QAudioFormat::LittleEndian); |
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98 //![2] |
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99 format.setSampleType(QAudioFormat::SignedInt); |
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100 |
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101 QAudioDeviceInfo info(QAudioDeviceInfo::defaultOutputDevice()); |
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102 |
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103 if (!info.isFormatSupported(format)) |
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104 format = info.nearestFormat(format); |
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105 //![2] |
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106 } |
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107 |
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108 public slots: |
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109 //![3] |
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110 void stateChanged(QAudio::State newState) |
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111 { |
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112 switch (newState) { |
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113 case QAudio::StopState: |
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114 if (output->error() != QAudio::NoError) { |
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115 // Perform error handling |
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116 } else { |
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117 // Normal stop |
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118 } |
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119 break; |
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120 //![3] |
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121 |
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122 // Handle |
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123 case QAudio::ActiveState: |
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124 // Handle active state... |
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125 break; |
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126 break; |
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127 default: |
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128 ; |
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129 } |
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130 } |
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131 |
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132 private: |
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133 QAudioOutput *output; |
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134 }; |
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135 |
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136 int main(int argv, char **args) |
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137 { |
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138 QApplication app(argv, args); |
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139 |
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140 Window window; |
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141 window.show(); |
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142 |
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143 return app.exec(); |
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144 } |
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145 |
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146 |
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147 #include "main.moc" |
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148 |