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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 Qt Mobility Components. |
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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 // |
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43 // W A R N I N G |
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44 // ------------- |
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45 // |
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46 // This file is not part of the Qt API. It exists for the convenience |
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47 // of other Qt classes. This header file may change from version to |
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48 // version without notice, or even be removed. |
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49 // |
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50 // We mean it. |
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51 // |
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52 |
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53 #include <QtCore/qstringlist.h> |
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54 #include <QtCore/qlist.h> |
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55 #include <QtCore/qbytearray.h> |
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56 #include <QtCore/qdatastream.h> |
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57 #include <QtCore/qdebug.h> |
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58 #include <private/qcore_mac_p.h> |
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59 |
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60 #include <qaudiodeviceinfo.h> |
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61 #include "qaudio_mac_p.h" |
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62 #include "qaudiodeviceinfo_mac_p.h" |
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63 |
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64 |
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65 |
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66 QT_BEGIN_NAMESPACE |
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67 |
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68 |
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69 QAudioDeviceInfoInternal::QAudioDeviceInfoInternal(QByteArray const& handle, QAudio::Mode) |
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70 { |
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71 QDataStream ds(handle); |
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72 quint32 did, tm; |
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73 |
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74 ds >> did >> tm >> name; |
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75 deviceId = AudioDeviceID(did); |
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76 mode = QAudio::Mode(tm); |
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77 } |
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78 |
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79 bool QAudioDeviceInfoInternal::isFormatSupported(const QAudioFormat& format) const |
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80 { |
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81 return format.codec() == QString::fromLatin1("audio/pcm"); |
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82 } |
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83 |
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84 QAudioFormat QAudioDeviceInfoInternal::preferredFormat() const |
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85 { |
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86 QAudioFormat rc; |
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87 |
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88 UInt32 propSize = 0; |
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89 |
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90 if (AudioDeviceGetPropertyInfo(deviceId, |
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91 0, |
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92 mode == QAudio::AudioInput, |
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93 kAudioDevicePropertyStreams, |
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94 &propSize, |
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95 0) == noErr) { |
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96 |
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97 const int sc = propSize / sizeof(AudioStreamID); |
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98 |
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99 if (sc > 0) { |
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100 AudioStreamID* streams = new AudioStreamID[sc]; |
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101 |
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102 if (AudioDeviceGetProperty(deviceId, |
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103 0, |
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104 mode == QAudio::AudioInput, |
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105 kAudioDevicePropertyStreams, |
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106 &propSize, |
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107 streams) == noErr) { |
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108 |
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109 for (int i = 0; i < sc; ++i) { |
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110 if (AudioStreamGetPropertyInfo(streams[i], |
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111 0, |
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112 kAudioStreamPropertyPhysicalFormat, |
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113 &propSize, |
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114 0) == noErr) { |
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115 |
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116 AudioStreamBasicDescription sf; |
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117 |
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118 if (AudioStreamGetProperty(streams[i], |
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119 0, |
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120 kAudioStreamPropertyPhysicalFormat, |
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121 &propSize, |
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122 &sf) == noErr) { |
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123 rc = toQAudioFormat(sf); |
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124 break; |
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125 } |
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126 } |
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127 } |
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128 } |
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129 |
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130 delete streams; |
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131 } |
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132 } |
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133 |
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134 return rc; |
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135 } |
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136 |
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137 QString QAudioDeviceInfoInternal::deviceName() const |
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138 { |
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139 return name; |
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140 } |
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141 |
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142 QStringList QAudioDeviceInfoInternal::supportedCodecs() |
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143 { |
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144 return QStringList() << QString::fromLatin1("audio/pcm"); |
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145 } |
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146 |
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147 QList<int> QAudioDeviceInfoInternal::supportedSampleRates() |
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148 { |
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149 QSet<int> rc; |
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150 |
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151 // Add some common frequencies |
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152 rc << 8000 << 11025 << 22050 << 44100; |
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153 |
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154 // |
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155 UInt32 propSize = 0; |
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156 |
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157 if (AudioDeviceGetPropertyInfo(deviceId, |
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158 0, |
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159 mode == QAudio::AudioInput, |
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160 kAudioDevicePropertyAvailableNominalSampleRates, |
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161 &propSize, |
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162 0) == noErr) { |
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163 |
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164 const int pc = propSize / sizeof(AudioValueRange); |
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165 |
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166 if (pc > 0) { |
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167 AudioValueRange* vr = new AudioValueRange[pc]; |
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168 |
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169 if (AudioDeviceGetProperty(deviceId, |
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170 0, |
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171 mode == QAudio::AudioInput, |
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172 kAudioDevicePropertyAvailableNominalSampleRates, |
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173 &propSize, |
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174 vr) == noErr) { |
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175 |
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176 for (int i = 0; i < pc; ++i) |
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177 rc << vr[i].mMaximum; |
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178 } |
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179 |
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180 delete vr; |
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181 } |
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182 } |
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183 |
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184 return rc.toList(); |
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185 } |
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186 |
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187 QList<int> QAudioDeviceInfoInternal::supportedChannelCounts() |
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188 { |
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189 QList<int> rc; |
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190 |
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191 // Can mix down to 1 channel |
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192 rc << 1; |
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193 |
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194 UInt32 propSize = 0; |
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195 int channels = 0; |
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196 |
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197 if (AudioDeviceGetPropertyInfo(deviceId, |
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198 0, |
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199 mode == QAudio::AudioInput, |
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200 kAudioDevicePropertyStreamConfiguration, |
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201 &propSize, |
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202 0) == noErr) { |
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203 |
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204 AudioBufferList* audioBufferList = static_cast<AudioBufferList*>(qMalloc(propSize)); |
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205 |
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206 if (audioBufferList != 0) { |
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207 if (AudioDeviceGetProperty(deviceId, |
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208 0, |
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209 mode == QAudio::AudioInput, |
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210 kAudioDevicePropertyStreamConfiguration, |
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211 &propSize, |
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212 audioBufferList) == noErr) { |
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213 |
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214 for (int i = 0; i < int(audioBufferList->mNumberBuffers); ++i) { |
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215 channels += audioBufferList->mBuffers[i].mNumberChannels; |
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216 rc << channels; |
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217 } |
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218 } |
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219 |
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220 qFree(audioBufferList); |
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221 } |
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222 } |
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223 |
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224 return rc; |
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225 } |
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226 |
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227 QList<int> QAudioDeviceInfoInternal::supportedSampleSizes() |
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228 { |
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229 return QList<int>() << 8 << 16 << 24 << 32 << 64; |
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230 } |
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231 |
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232 QList<QAudioFormat::Endian> QAudioDeviceInfoInternal::supportedByteOrders() |
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233 { |
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234 return QList<QAudioFormat::Endian>() << QAudioFormat::LittleEndian << QAudioFormat::BigEndian; |
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235 } |
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236 |
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237 QList<QAudioFormat::SampleType> QAudioDeviceInfoInternal::supportedSampleTypes() |
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238 { |
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239 return QList<QAudioFormat::SampleType>() << QAudioFormat::SignedInt << QAudioFormat::UnSignedInt << QAudioFormat::Float; |
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240 } |
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241 |
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242 static QByteArray get_device_info(AudioDeviceID audioDevice, QAudio::Mode mode) |
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243 { |
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244 UInt32 size; |
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245 QByteArray device; |
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246 QDataStream ds(&device, QIODevice::WriteOnly); |
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247 AudioStreamBasicDescription sf; |
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248 CFStringRef name; |
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249 Boolean isInput = mode == QAudio::AudioInput; |
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250 |
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251 // Id |
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252 ds << quint32(audioDevice); |
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253 |
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254 // Mode |
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255 size = sizeof(AudioStreamBasicDescription); |
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256 if (AudioDeviceGetProperty(audioDevice, 0, isInput, kAudioDevicePropertyStreamFormat, |
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257 &size, &sf) != noErr) { |
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258 return QByteArray(); |
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259 } |
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260 ds << quint32(mode); |
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261 |
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262 // Name |
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263 size = sizeof(CFStringRef); |
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264 if (AudioDeviceGetProperty(audioDevice, 0, isInput, kAudioObjectPropertyName, |
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265 &size, &name) != noErr) { |
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266 qWarning() << "QAudioDeviceInfo: Unable to find device name"; |
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267 } |
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268 ds << QCFString::toQString(name); |
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269 |
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270 CFRelease(name); |
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271 |
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272 return device; |
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273 } |
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274 |
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275 QByteArray QAudioDeviceInfoInternal::defaultInputDevice() |
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276 { |
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277 AudioDeviceID audioDevice; |
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278 UInt32 size = sizeof(audioDevice); |
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279 |
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280 if (AudioHardwareGetProperty(kAudioHardwarePropertyDefaultInputDevice, &size, |
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281 &audioDevice) != noErr) { |
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282 qWarning() << "QAudioDeviceInfo: Unable to find default input device"; |
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283 return QByteArray(); |
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284 } |
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285 |
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286 return get_device_info(audioDevice, QAudio::AudioInput); |
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287 } |
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288 |
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289 QByteArray QAudioDeviceInfoInternal::defaultOutputDevice() |
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290 { |
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291 AudioDeviceID audioDevice; |
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292 UInt32 size = sizeof(audioDevice); |
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293 |
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294 if (AudioHardwareGetProperty(kAudioHardwarePropertyDefaultOutputDevice, &size, |
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295 &audioDevice) != noErr) { |
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296 qWarning() << "QAudioDeviceInfo: Unable to find default output device"; |
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297 return QByteArray(); |
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298 } |
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299 |
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300 return get_device_info(audioDevice, QAudio::AudioOutput); |
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301 } |
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302 |
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303 QList<QByteArray> QAudioDeviceInfoInternal::availableDevices(QAudio::Mode mode) |
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304 { |
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305 QList<QByteArray> devices; |
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306 |
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307 UInt32 propSize = 0; |
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308 |
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309 if (AudioHardwareGetPropertyInfo(kAudioHardwarePropertyDevices, &propSize, 0) == noErr) { |
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310 |
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311 const int dc = propSize / sizeof(AudioDeviceID); |
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312 |
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313 if (dc > 0) { |
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314 AudioDeviceID* audioDevices = new AudioDeviceID[dc]; |
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315 |
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316 if (AudioHardwareGetProperty(kAudioHardwarePropertyDevices, &propSize, audioDevices) == noErr) { |
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317 for (int i = 0; i < dc; ++i) { |
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318 QByteArray info = get_device_info(audioDevices[i], mode); |
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319 if (!info.isNull()) |
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320 devices << info; |
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321 } |
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322 } |
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323 |
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324 delete audioDevices; |
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325 } |
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326 } |
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327 |
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328 return devices; |
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329 } |
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330 |
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331 |
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332 QT_END_NAMESPACE |
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333 |