author | Eckhart Koeppen <eckhart.koppen@nokia.com> |
Thu, 08 Apr 2010 14:19:33 +0300 | |
branch | RCL_3 |
changeset 7 | 3f74d0d4af4c |
child 13 | c0432d11811c |
permissions | -rw-r--r-- |
7
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1 |
/**************************************************************************** |
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2 |
** |
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). |
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4 |
** All rights reserved. |
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** Contact: Nokia Corporation (qt-info@nokia.com) |
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6 |
** |
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** 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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** No Commercial Usage |
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** 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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** contained in the Technology Preview License Agreement accompanying |
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** this package. |
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15 |
** |
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** GNU Lesser General Public License Usage |
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** Alternatively, this file may be used under the terms of the GNU Lesser |
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** General Public License version 2.1 as published by the Free Software |
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** Foundation and appearing in the file LICENSE.LGPL included in the |
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** packaging of this file. Please review the following information to |
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** ensure the GNU Lesser General Public License version 2.1 requirements |
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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** |
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** In addition, as a special exception, Nokia gives you certain additional |
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** rights. These rights are described in the Nokia Qt LGPL Exception |
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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** |
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** If you have questions regarding the use of this file, please contact |
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** Nokia at qt-info@nokia.com. |
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** |
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** |
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** |
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** |
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** |
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** |
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** |
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** |
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** $QT_END_LICENSE$ |
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** |
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****************************************************************************/ |
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|
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#include "qaudio_symbian_p.h" |
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#include <mmffourcc.h> |
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|
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QT_BEGIN_NAMESPACE |
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|
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namespace SymbianAudio { |
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|
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DevSoundCapabilities::DevSoundCapabilities(CMMFDevSound &devsound, |
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QAudio::Mode mode) |
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{ |
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QT_TRAP_THROWING(constructL(devsound, mode)); |
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} |
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|
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DevSoundCapabilities::~DevSoundCapabilities() |
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{ |
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m_fourCC.Close(); |
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} |
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|
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void DevSoundCapabilities::constructL(CMMFDevSound &devsound, |
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QAudio::Mode mode) |
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{ |
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m_caps = devsound.Capabilities(); |
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|
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TMMFPrioritySettings settings; |
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|
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switch (mode) { |
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case QAudio::AudioOutput: |
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settings.iState = EMMFStatePlaying; |
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devsound.GetSupportedInputDataTypesL(m_fourCC, settings); |
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break; |
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|
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case QAudio::AudioInput: |
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settings.iState = EMMFStateRecording; |
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devsound.GetSupportedInputDataTypesL(m_fourCC, settings); |
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break; |
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|
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default: |
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Q_ASSERT_X(false, Q_FUNC_INFO, "Invalid mode"); |
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} |
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} |
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namespace Utils { |
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|
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//----------------------------------------------------------------------------- |
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// Static data |
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//----------------------------------------------------------------------------- |
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// Sample rate / frequency |
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typedef TMMFSampleRate SampleRateNative; |
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typedef int SampleRateQt; |
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93 |
|
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94 |
const int SampleRateCount = 12; |
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95 |
|
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96 |
const SampleRateNative SampleRateListNative[SampleRateCount] = { |
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97 |
EMMFSampleRate8000Hz |
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98 |
, EMMFSampleRate11025Hz |
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99 |
, EMMFSampleRate12000Hz |
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100 |
, EMMFSampleRate16000Hz |
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101 |
, EMMFSampleRate22050Hz |
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102 |
, EMMFSampleRate24000Hz |
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103 |
, EMMFSampleRate32000Hz |
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104 |
, EMMFSampleRate44100Hz |
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105 |
, EMMFSampleRate48000Hz |
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106 |
, EMMFSampleRate64000Hz |
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107 |
, EMMFSampleRate88200Hz |
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108 |
, EMMFSampleRate96000Hz |
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109 |
}; |
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110 |
|
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111 |
const SampleRateQt SampleRateListQt[SampleRateCount] = { |
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112 |
8000 |
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113 |
, 11025 |
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114 |
, 12000 |
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115 |
, 16000 |
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116 |
, 22050 |
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117 |
, 24000 |
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118 |
, 32000 |
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119 |
, 44100 |
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120 |
, 48000 |
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121 |
, 64000 |
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122 |
, 88200 |
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123 |
, 96000 |
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124 |
}; |
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125 |
|
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126 |
// Channels |
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127 |
|
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128 |
typedef TMMFMonoStereo ChannelsNative; |
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129 |
typedef int ChannelsQt; |
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130 |
|
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131 |
const int ChannelsCount = 2; |
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132 |
|
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133 |
const ChannelsNative ChannelsListNative[ChannelsCount] = { |
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134 |
EMMFMono |
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135 |
, EMMFStereo |
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136 |
}; |
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137 |
|
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138 |
const ChannelsQt ChannelsListQt[ChannelsCount] = { |
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139 |
1 |
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140 |
, 2 |
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141 |
}; |
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142 |
|
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143 |
// Encoding |
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144 |
|
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145 |
const int EncodingCount = 6; |
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146 |
|
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147 |
const TUint32 EncodingFourCC[EncodingCount] = { |
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148 |
KMMFFourCCCodePCM8 // 0 |
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149 |
, KMMFFourCCCodePCMU8 // 1 |
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150 |
, KMMFFourCCCodePCM16 // 2 |
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151 |
, KMMFFourCCCodePCMU16 // 3 |
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152 |
, KMMFFourCCCodePCM16B // 4 |
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153 |
, KMMFFourCCCodePCMU16B // 5 |
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154 |
}; |
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155 |
|
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156 |
// The characterised DevSound API specification states that the iEncoding |
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157 |
// field in TMMFCapabilities is ignored, and that the FourCC should be used |
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158 |
// to specify the PCM encoding. |
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159 |
// See "SGL.GT0287.102 Multimedia DevSound Baseline Compatibility.doc" in the |
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160 |
// mm_info/mm_docs repository. |
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161 |
const TMMFSoundEncoding EncodingNative[EncodingCount] = { |
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162 |
EMMFSoundEncoding16BitPCM // 0 |
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163 |
, EMMFSoundEncoding16BitPCM // 1 |
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164 |
, EMMFSoundEncoding16BitPCM // 2 |
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165 |
, EMMFSoundEncoding16BitPCM // 3 |
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166 |
, EMMFSoundEncoding16BitPCM // 4 |
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167 |
, EMMFSoundEncoding16BitPCM // 5 |
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168 |
}; |
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169 |
|
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170 |
|
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171 |
const int EncodingSampleSize[EncodingCount] = { |
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172 |
8 // 0 |
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173 |
, 8 // 1 |
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174 |
, 16 // 2 |
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175 |
, 16 // 3 |
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176 |
, 16 // 4 |
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177 |
, 16 // 5 |
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178 |
}; |
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179 |
|
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180 |
const QAudioFormat::Endian EncodingByteOrder[EncodingCount] = { |
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181 |
QAudioFormat::LittleEndian // 0 |
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, QAudioFormat::LittleEndian // 1 |
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, QAudioFormat::LittleEndian // 2 |
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, QAudioFormat::LittleEndian // 3 |
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, QAudioFormat::BigEndian // 4 |
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, QAudioFormat::BigEndian // 5 |
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}; |
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|
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const QAudioFormat::SampleType EncodingSampleType[EncodingCount] = { |
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QAudioFormat::SignedInt // 0 |
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, QAudioFormat::UnSignedInt // 1 |
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, QAudioFormat::SignedInt // 2 |
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, QAudioFormat::UnSignedInt // 3 |
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, QAudioFormat::SignedInt // 4 |
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, QAudioFormat::UnSignedInt // 5 |
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}; |
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197 |
|
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198 |
|
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//----------------------------------------------------------------------------- |
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// Private functions |
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//----------------------------------------------------------------------------- |
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202 |
|
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// Helper functions for implementing parameter conversions |
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204 |
|
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template<typename Input> |
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bool findValue(const Input *inputArray, int length, Input input, int &index) { |
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bool result = false; |
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for (int i=0; !result && i<length; ++i) |
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if (inputArray[i] == input) { |
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index = i; |
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result = true; |
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} |
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return result; |
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} |
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215 |
|
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template<typename Input, typename Output> |
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bool convertValue(const Input *inputArray, const Output *outputArray, |
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int length, Input input, Output &output) { |
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int index; |
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const bool result = findValue<Input>(inputArray, length, input, index); |
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if (result) |
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output = outputArray[index]; |
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return result; |
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224 |
} |
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225 |
|
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226 |
/** |
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* Macro which is used to generate the implementation of the conversion |
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* functions. The implementation is just a wrapper around the templated |
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* convertValue function, e.g. |
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230 |
* |
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* CONVERSION_FUNCTION_IMPL(SampleRate, Qt, Native) |
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232 |
* |
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* expands to |
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* |
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* bool SampleRateQtToNative(int input, TMMFSampleRate &output) { |
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* return convertValue<SampleRateQt, SampleRateNative> |
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* (SampleRateListQt, SampleRateListNative, SampleRateCount, |
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* input, output); |
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239 |
* } |
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240 |
*/ |
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241 |
#define CONVERSION_FUNCTION_IMPL(FieldLc, Field, Input, Output) \ |
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bool FieldLc##Input##To##Output(Field##Input input, Field##Output &output) { \ |
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return convertValue<Field##Input, Field##Output>(Field##List##Input, \ |
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Field##List##Output, Field##Count, input, output); \ |
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} |
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246 |
|
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//----------------------------------------------------------------------------- |
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// Local helper functions |
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//----------------------------------------------------------------------------- |
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250 |
|
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CONVERSION_FUNCTION_IMPL(sampleRate, SampleRate, Qt, Native) |
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CONVERSION_FUNCTION_IMPL(sampleRate, SampleRate, Native, Qt) |
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CONVERSION_FUNCTION_IMPL(channels, Channels, Qt, Native) |
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CONVERSION_FUNCTION_IMPL(channels, Channels, Native, Qt) |
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255 |
|
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bool sampleInfoQtToNative(int inputSampleSize, |
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QAudioFormat::Endian inputByteOrder, |
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QAudioFormat::SampleType inputSampleType, |
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259 |
TUint32 &outputFourCC, |
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TMMFSoundEncoding &outputEncoding) { |
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261 |
|
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bool found = false; |
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263 |
|
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264 |
for (int i=0; i<EncodingCount && !found; ++i) { |
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if ( EncodingSampleSize[i] == inputSampleSize |
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&& EncodingByteOrder[i] == inputByteOrder |
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&& EncodingSampleType[i] == inputSampleType) { |
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outputFourCC = EncodingFourCC[i]; |
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outputEncoding = EncodingNative[i]; // EMMFSoundEncoding16BitPCM |
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found = true; |
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} |
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} |
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273 |
|
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return found; |
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275 |
} |
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276 |
|
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277 |
//----------------------------------------------------------------------------- |
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278 |
// Public functions |
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279 |
//----------------------------------------------------------------------------- |
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280 |
|
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281 |
void capabilitiesNativeToQt(const DevSoundCapabilities &caps, |
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282 |
QList<int> &frequencies, |
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283 |
QList<int> &channels, |
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284 |
QList<int> &sampleSizes, |
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285 |
QList<QAudioFormat::Endian> &byteOrders, |
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286 |
QList<QAudioFormat::SampleType> &sampleTypes) { |
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287 |
|
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frequencies.clear(); |
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289 |
sampleSizes.clear(); |
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290 |
byteOrders.clear(); |
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291 |
sampleTypes.clear(); |
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292 |
channels.clear(); |
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293 |
|
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for (int i=0; i<SampleRateCount; ++i) |
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if (caps.caps().iRate & SampleRateListNative[i]) |
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frequencies += SampleRateListQt[i]; |
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297 |
|
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298 |
for (int i=0; i<ChannelsCount; ++i) |
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299 |
if (caps.caps().iChannels & ChannelsListNative[i]) |
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channels += ChannelsListQt[i]; |
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301 |
|
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302 |
for (int i=0; i<EncodingCount; ++i) { |
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303 |
if (caps.fourCC().Find(EncodingFourCC[i]) != KErrNotFound) { |
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304 |
sampleSizes += EncodingSampleSize[i]; |
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305 |
byteOrders += EncodingByteOrder[i]; |
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sampleTypes += EncodingSampleType[i]; |
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307 |
} |
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308 |
} |
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309 |
|
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310 |
} |
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311 |
|
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312 |
bool isFormatSupported(const QAudioFormat &formatQt, |
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313 |
const DevSoundCapabilities &caps) { |
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314 |
TMMFCapabilities formatNative; |
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315 |
TUint32 fourCC; |
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316 |
|
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317 |
bool result = false; |
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318 |
if (formatQt.codec() == "audio/pcm" && |
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319 |
formatQtToNative(formatQt, fourCC, formatNative)) { |
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320 |
result = |
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321 |
(formatNative.iRate & caps.caps().iRate) |
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322 |
&& (formatNative.iChannels & caps.caps().iChannels) |
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323 |
&& (caps.fourCC().Find(fourCC) != KErrNotFound); |
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324 |
} |
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325 |
return result; |
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326 |
} |
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327 |
|
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|
328 |
bool formatQtToNative(const QAudioFormat &inputFormat, |
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329 |
TUint32 &outputFourCC, |
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330 |
TMMFCapabilities &outputFormat) { |
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331 |
|
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332 |
bool result = false; |
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|
333 |
|
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|
334 |
// Need to use temporary variables because TMMFCapabilities fields are all |
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|
335 |
// TInt, rather than MMF enumerated types. |
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|
336 |
TMMFSampleRate outputSampleRate; |
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|
337 |
TMMFMonoStereo outputChannels; |
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|
338 |
TMMFSoundEncoding outputEncoding; |
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|
339 |
|
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|
340 |
if (inputFormat.codec() == "audio/pcm") { |
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|
341 |
result = |
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|
342 |
sampleRateQtToNative(inputFormat.frequency(), outputSampleRate) |
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|
343 |
&& channelsQtToNative(inputFormat.channels(), outputChannels) |
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|
344 |
&& sampleInfoQtToNative(inputFormat.sampleSize(), |
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|
345 |
inputFormat.byteOrder(), |
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|
346 |
inputFormat.sampleType(), |
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|
347 |
outputFourCC, |
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|
348 |
outputEncoding); |
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|
349 |
} |
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|
350 |
|
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|
351 |
if (result) { |
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|
352 |
outputFormat.iRate = outputSampleRate; |
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|
353 |
outputFormat.iChannels = outputChannels; |
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|
354 |
outputFormat.iEncoding = outputEncoding; |
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|
355 |
} |
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|
356 |
|
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|
357 |
return result; |
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|
358 |
} |
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|
359 |
|
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|
360 |
QAudio::State stateNativeToQt(State nativeState, |
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|
361 |
QAudio::State initializingState) |
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|
362 |
{ |
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363 |
switch (nativeState) { |
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qt:70947f0f93d948bc89b3b43d00da758a51f1ef84
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364 |
case ClosedState: |
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qt:70947f0f93d948bc89b3b43d00da758a51f1ef84
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365 |
return QAudio::StoppedState; |
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366 |
case InitializingState: |
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qt:70947f0f93d948bc89b3b43d00da758a51f1ef84
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changeset
|
367 |
return initializingState; |
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qt:70947f0f93d948bc89b3b43d00da758a51f1ef84
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changeset
|
368 |
case ActiveState: |
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qt:70947f0f93d948bc89b3b43d00da758a51f1ef84
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369 |
return QAudio::ActiveState; |
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|
370 |
case IdleState: |
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qt:70947f0f93d948bc89b3b43d00da758a51f1ef84
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changeset
|
371 |
return QAudio::IdleState; |
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qt:70947f0f93d948bc89b3b43d00da758a51f1ef84
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changeset
|
372 |
case SuspendedState: |
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qt:70947f0f93d948bc89b3b43d00da758a51f1ef84
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changeset
|
373 |
return QAudio::SuspendedState; |
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changeset
|
374 |
default: |
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qt:70947f0f93d948bc89b3b43d00da758a51f1ef84
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changeset
|
375 |
Q_ASSERT_X(false, Q_FUNC_INFO, "Invalid state"); |
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qt:70947f0f93d948bc89b3b43d00da758a51f1ef84
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changeset
|
376 |
return QAudio::StoppedState; // suppress compiler warning |
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qt:70947f0f93d948bc89b3b43d00da758a51f1ef84
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changeset
|
377 |
} |
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qt:70947f0f93d948bc89b3b43d00da758a51f1ef84
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changeset
|
378 |
} |
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qt:70947f0f93d948bc89b3b43d00da758a51f1ef84
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changeset
|
379 |
|
3f74d0d4af4c
qt:70947f0f93d948bc89b3b43d00da758a51f1ef84
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changeset
|
380 |
qint64 bytesToSamples(const QAudioFormat &format, qint64 length) |
3f74d0d4af4c
qt:70947f0f93d948bc89b3b43d00da758a51f1ef84
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changeset
|
381 |
{ |
3f74d0d4af4c
qt:70947f0f93d948bc89b3b43d00da758a51f1ef84
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parents:
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changeset
|
382 |
return length / ((format.sampleSize() / 8) * format.channels()); |
3f74d0d4af4c
qt:70947f0f93d948bc89b3b43d00da758a51f1ef84
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parents:
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changeset
|
383 |
} |
3f74d0d4af4c
qt:70947f0f93d948bc89b3b43d00da758a51f1ef84
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parents:
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changeset
|
384 |
|
3f74d0d4af4c
qt:70947f0f93d948bc89b3b43d00da758a51f1ef84
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changeset
|
385 |
qint64 samplesToBytes(const QAudioFormat &format, qint64 samples) |
3f74d0d4af4c
qt:70947f0f93d948bc89b3b43d00da758a51f1ef84
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changeset
|
386 |
{ |
3f74d0d4af4c
qt:70947f0f93d948bc89b3b43d00da758a51f1ef84
Eckhart Koeppen <eckhart.koppen@nokia.com>
parents:
diff
changeset
|
387 |
return samples * (format.sampleSize() / 8) * format.channels(); |
3f74d0d4af4c
qt:70947f0f93d948bc89b3b43d00da758a51f1ef84
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parents:
diff
changeset
|
388 |
} |
3f74d0d4af4c
qt:70947f0f93d948bc89b3b43d00da758a51f1ef84
Eckhart Koeppen <eckhart.koppen@nokia.com>
parents:
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changeset
|
389 |
|
3f74d0d4af4c
qt:70947f0f93d948bc89b3b43d00da758a51f1ef84
Eckhart Koeppen <eckhart.koppen@nokia.com>
parents:
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changeset
|
390 |
} // namespace Utils |
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changeset
|
391 |
} // namespace SymbianAudio |
3f74d0d4af4c
qt:70947f0f93d948bc89b3b43d00da758a51f1ef84
Eckhart Koeppen <eckhart.koppen@nokia.com>
parents:
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changeset
|
392 |
|
3f74d0d4af4c
qt:70947f0f93d948bc89b3b43d00da758a51f1ef84
Eckhart Koeppen <eckhart.koppen@nokia.com>
parents:
diff
changeset
|
393 |
QT_END_NAMESPACE |
3f74d0d4af4c
qt:70947f0f93d948bc89b3b43d00da758a51f1ef84
Eckhart Koeppen <eckhart.koppen@nokia.com>
parents:
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changeset
|
394 |
|
3f74d0d4af4c
qt:70947f0f93d948bc89b3b43d00da758a51f1ef84
Eckhart Koeppen <eckhart.koppen@nokia.com>
parents:
diff
changeset
|
395 |