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1 /**************************************************************************** |
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2 ** |
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3 ** Copyright (C) 2009 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 QtMultimedia module 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 <QtCore/qdebug.h> |
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43 #include <QtMultimedia/qaudioengine.h> |
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44 #include <QtMultimedia/qaudioengineplugin.h> |
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45 #include <private/qfactoryloader_p.h> |
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46 #include "qaudiodevicefactory_p.h" |
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47 |
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48 #if defined(Q_OS_WIN) |
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49 #include "qaudiodeviceinfo_win32_p.h" |
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50 #include "qaudiooutput_win32_p.h" |
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51 #include "qaudioinput_win32_p.h" |
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52 #elif defined(Q_OS_MAC) |
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53 #include "qaudiodeviceinfo_mac_p.h" |
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54 #include "qaudiooutput_mac_p.h" |
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55 #include "qaudioinput_mac_p.h" |
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56 #elif defined(HAS_ALSA) |
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57 #include "qaudiodeviceinfo_alsa_p.h" |
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58 #include "qaudiooutput_alsa_p.h" |
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59 #include "qaudioinput_alsa_p.h" |
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60 #endif |
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61 |
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62 QT_BEGIN_NAMESPACE |
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63 |
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64 Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, loader, |
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65 (QAudioEngineFactoryInterface_iid, QLatin1String("/audio"), Qt::CaseInsensitive)) |
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66 |
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67 |
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68 class QNullDeviceInfo : public QAbstractAudioDeviceInfo |
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69 { |
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70 public: |
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71 QAudioFormat preferredFormat() const { qWarning()<<"using null deviceinfo, none available"; return QAudioFormat(); } |
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72 bool isFormatSupported(const QAudioFormat& ) const { return false; } |
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73 QAudioFormat nearestFormat(const QAudioFormat& ) const { return QAudioFormat(); } |
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74 QString deviceName() const { return QString(); } |
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75 QStringList codecList() { return QStringList(); } |
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76 QList<int> frequencyList() { return QList<int>(); } |
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77 QList<int> channelsList() { return QList<int>(); } |
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78 QList<int> sampleSizeList() { return QList<int>(); } |
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79 QList<QAudioFormat::Endian> byteOrderList() { return QList<QAudioFormat::Endian>(); } |
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80 QList<QAudioFormat::SampleType> sampleTypeList() { return QList<QAudioFormat::SampleType>(); } |
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81 }; |
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82 |
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83 class QNullInputDevice : public QAbstractAudioInput |
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84 { |
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85 public: |
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86 QIODevice* start(QIODevice* ) { qWarning()<<"using null input device, none available"; return 0; } |
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87 void stop() {} |
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88 void reset() {} |
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89 void suspend() {} |
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90 void resume() {} |
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91 int bytesReady() const { return 0; } |
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92 int periodSize() const { return 0; } |
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93 void setBufferSize(int ) {} |
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94 int bufferSize() const { return 0; } |
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95 void setNotifyInterval(int ) {} |
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96 int notifyInterval() const { return 0; } |
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97 qint64 totalTime() const { return 0; } |
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98 qint64 clock() const { return 0; } |
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99 QAudio::Error error() const { return QAudio::OpenError; } |
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100 QAudio::State state() const { return QAudio::StopState; } |
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101 QAudioFormat format() const { return QAudioFormat(); } |
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102 }; |
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103 |
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104 class QNullOutputDevice : public QAbstractAudioOutput |
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105 { |
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106 public: |
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107 QIODevice* start(QIODevice* ) { qWarning()<<"using null output device, none available"; return 0; } |
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108 void stop() {} |
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109 void reset() {} |
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110 void suspend() {} |
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111 void resume() {} |
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112 int bytesFree() const { return 0; } |
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113 int periodSize() const { return 0; } |
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114 void setBufferSize(int ) {} |
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115 int bufferSize() const { return 0; } |
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116 void setNotifyInterval(int ) {} |
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117 int notifyInterval() const { return 0; } |
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118 qint64 totalTime() const { return 0; } |
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119 qint64 clock() const { return 0; } |
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120 QAudio::Error error() const { return QAudio::OpenError; } |
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121 QAudio::State state() const { return QAudio::StopState; } |
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122 QAudioFormat format() const { return QAudioFormat(); } |
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123 }; |
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124 |
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125 QList<QAudioDeviceInfo> QAudioDeviceFactory::deviceList(QAudio::Mode mode) |
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126 { |
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127 QList<QAudioDeviceInfo> devices; |
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128 #if (defined(Q_OS_WIN) || defined(Q_OS_MAC) || defined(HAS_ALSA)) |
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129 foreach (const QByteArray &handle, QAudioDeviceInfoInternal::deviceList(mode)) |
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130 devices << QAudioDeviceInfo(QLatin1String("builtin"), handle, mode); |
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131 #endif |
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132 QFactoryLoader* l = loader(); |
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133 |
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134 foreach (QString const& key, l->keys()) { |
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135 QAudioEngineFactoryInterface* plugin = qobject_cast<QAudioEngineFactoryInterface*>(l->instance(key)); |
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136 if (plugin) { |
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137 foreach (QByteArray const& handle, plugin->deviceList(mode)) |
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138 devices << QAudioDeviceInfo(key, handle, mode); |
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139 } |
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140 |
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141 delete plugin; |
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142 } |
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143 |
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144 return devices; |
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145 } |
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146 |
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147 QAudioDeviceInfo QAudioDeviceFactory::defaultInputDevice() |
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148 { |
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149 QAudioEngineFactoryInterface* plugin = qobject_cast<QAudioEngineFactoryInterface*>(loader()->instance(QLatin1String("default"))); |
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150 |
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151 if (plugin) { |
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152 QList<QByteArray> list = plugin->deviceList(QAudio::AudioInput); |
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153 if (list.size() > 0) |
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154 return QAudioDeviceInfo(QLatin1String("default"), list.at(0), QAudio::AudioInput); |
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155 } |
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156 #if (defined(Q_OS_WIN) || defined(Q_OS_MAC) || defined(HAS_ALSA)) |
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157 return QAudioDeviceInfo(QLatin1String("builtin"), QAudioDeviceInfoInternal::defaultInputDevice(), QAudio::AudioInput); |
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158 #endif |
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159 return QAudioDeviceInfo(); |
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160 } |
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161 |
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162 QAudioDeviceInfo QAudioDeviceFactory::defaultOutputDevice() |
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163 { |
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164 QAudioEngineFactoryInterface* plugin = qobject_cast<QAudioEngineFactoryInterface*>(loader()->instance(QLatin1String("default"))); |
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165 |
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166 if (plugin) { |
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167 QList<QByteArray> list = plugin->deviceList(QAudio::AudioOutput); |
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168 if (list.size() > 0) |
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169 return QAudioDeviceInfo(QLatin1String("default"), list.at(0), QAudio::AudioOutput); |
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170 } |
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171 #if (defined(Q_OS_WIN) || defined(Q_OS_MAC) || defined(HAS_ALSA)) |
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172 return QAudioDeviceInfo(QLatin1String("builtin"), QAudioDeviceInfoInternal::defaultOutputDevice(), QAudio::AudioOutput); |
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173 #endif |
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174 return QAudioDeviceInfo(); |
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175 } |
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176 |
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177 QAbstractAudioDeviceInfo* QAudioDeviceFactory::audioDeviceInfo(const QString &realm, const QByteArray &handle, QAudio::Mode mode) |
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178 { |
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179 QAbstractAudioDeviceInfo *rc = 0; |
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180 |
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181 #if (defined(Q_OS_WIN) || defined(Q_OS_MAC) || defined(HAS_ALSA)) |
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182 if (realm == QLatin1String("builtin")) |
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183 return new QAudioDeviceInfoInternal(handle, mode); |
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184 #endif |
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185 QAudioEngineFactoryInterface* plugin = |
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186 qobject_cast<QAudioEngineFactoryInterface*>(loader()->instance(realm)); |
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187 |
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188 if (plugin) |
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189 rc = plugin->createDeviceInfo(handle, mode); |
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190 |
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191 return rc == 0 ? new QNullDeviceInfo() : rc; |
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192 } |
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193 |
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194 QAbstractAudioInput* QAudioDeviceFactory::createDefaultInputDevice(QAudioFormat const &format) |
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195 { |
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196 return createInputDevice(defaultInputDevice(), format); |
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197 } |
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198 |
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199 QAbstractAudioOutput* QAudioDeviceFactory::createDefaultOutputDevice(QAudioFormat const &format) |
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200 { |
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201 return createOutputDevice(defaultOutputDevice(), format); |
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202 } |
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203 |
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204 QAbstractAudioInput* QAudioDeviceFactory::createInputDevice(QAudioDeviceInfo const& deviceInfo, QAudioFormat const &format) |
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205 { |
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206 if (deviceInfo.isNull()) |
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207 return new QNullInputDevice(); |
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208 #if (defined(Q_OS_WIN) || defined(Q_OS_MAC) || defined(HAS_ALSA)) |
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209 if (deviceInfo.realm() == QLatin1String("builtin")) |
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210 return new QAudioInputPrivate(deviceInfo.handle(), format); |
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211 #endif |
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212 QAudioEngineFactoryInterface* plugin = |
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213 qobject_cast<QAudioEngineFactoryInterface*>(loader()->instance(deviceInfo.realm())); |
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214 |
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215 if (plugin) |
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216 return plugin->createInput(deviceInfo.handle(), format); |
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217 |
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218 return new QNullInputDevice(); |
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219 } |
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220 |
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221 QAbstractAudioOutput* QAudioDeviceFactory::createOutputDevice(QAudioDeviceInfo const& deviceInfo, QAudioFormat const &format) |
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222 { |
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223 if (deviceInfo.isNull()) |
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224 return new QNullOutputDevice(); |
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225 #if (defined(Q_OS_WIN) || defined(Q_OS_MAC) || defined(HAS_ALSA)) |
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226 if (deviceInfo.realm() == QLatin1String("builtin")) |
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227 return new QAudioOutputPrivate(deviceInfo.handle(), format); |
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228 #endif |
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229 QAudioEngineFactoryInterface* plugin = |
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230 qobject_cast<QAudioEngineFactoryInterface*>(loader()->instance(deviceInfo.realm())); |
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231 |
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232 if (plugin) |
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233 return plugin->createOutput(deviceInfo.handle(), format); |
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234 |
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235 return new QNullOutputDevice(); |
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236 } |
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237 |
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238 QT_END_NAMESPACE |
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239 |