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1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
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2
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3 /*
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4 Sonic Visualiser
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5 An audio file viewer and annotation editor.
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6 Centre for Digital Music, Queen Mary, University of London.
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7
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8 This program is free software; you can redistribute it and/or
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9 modify it under the terms of the GNU General Public License as
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10 published by the Free Software Foundation; either version 2 of the
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11 License, or (at your option) any later version. See the file
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12 COPYING included with this distribution for more information.
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13 */
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14
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15 #include "AudioRecordTarget.h"
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16
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17 #include "base/ViewManagerBase.h"
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18 #include "base/TempDirectory.h"
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19
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20 #include "data/model/WritableWaveFileModel.h"
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21
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22 #include <bqaudioio/SystemRecordSource.h>
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23
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24 #include <QDir>
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25
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26 AudioRecordTarget::AudioRecordTarget(ViewManagerBase *manager,
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27 QString clientName) :
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28 m_viewManager(manager),
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29 m_source(0),
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30 m_clientName(clientName.toUtf8().data()),
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31 m_recording(false),
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32 m_recordSampleRate(44100),
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33 m_frameCount(0),
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34 m_model(0)
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35 {
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36 }
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37
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38 AudioRecordTarget::~AudioRecordTarget()
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39 {
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40 QMutexLocker locker(&m_mutex);
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41 }
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42
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43 void
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44 AudioRecordTarget::setSystemRecordBlockSize(int)
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45 {
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46 }
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47
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48 void
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49 AudioRecordTarget::setSystemRecordSampleRate(int n)
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50 {
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51 m_recordSampleRate = n;
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52 }
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53
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54 void
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55 AudioRecordTarget::setSystemRecordLatency(int)
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56 {
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57 }
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58
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59 void
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60 AudioRecordTarget::putSamples(int nframes, float **samples)
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61 {
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62 bool secChanged = false;
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63 sv_frame_t frameToEmit = 0;
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64
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65 {
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66 QMutexLocker locker(&m_mutex); //!!! bad here
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67 if (!m_recording) return;
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68
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69 m_model->addSamples(samples, nframes);
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70
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71 sv_frame_t priorFrameCount = m_frameCount;
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72 m_frameCount += nframes;
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73
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74 RealTime priorRT = RealTime::frame2RealTime
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75 (priorFrameCount, m_recordSampleRate);
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76 RealTime postRT = RealTime::frame2RealTime
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77 (m_frameCount, m_recordSampleRate);
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78
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79 secChanged = (postRT.sec > priorRT.sec);
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80 if (secChanged) frameToEmit = m_frameCount;
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81 }
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82
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83 if (secChanged) {
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84 emit recordDurationChanged(frameToEmit, m_recordSampleRate);
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85 }
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86 }
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87
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88 void
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89 AudioRecordTarget::setInputLevels(float, float)
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90 {
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91 }
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92
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93 void
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94 AudioRecordTarget::modelAboutToBeDeleted()
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95 {
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96 QMutexLocker locker(&m_mutex);
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97 if (sender() == m_model) {
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98 m_model = 0;
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99 m_recording = false;
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100 }
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101 }
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102
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103 QString
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104 AudioRecordTarget::getRecordFolder()
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105 {
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106 QDir parent(TempDirectory::getInstance()->getContainingPath());
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107 QString subdirname = "recorded"; //!!! tr?
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108 if (!parent.mkpath(subdirname)) {
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109 cerr << "ERROR: AudioRecordTarget::getRecordFolder: Failed to create recorded dir in \"" << parent.canonicalPath() << "\"" << endl;
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110 return "";
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111 } else {
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112 return parent.filePath(subdirname);
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113 }
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114 }
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115
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116 WritableWaveFileModel *
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117 AudioRecordTarget::startRecording()
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118 {
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119 {
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120 QMutexLocker locker(&m_mutex);
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121
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122 if (m_recording) {
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123 cerr << "WARNING: AudioRecordTarget::startRecording: We are already recording" << endl;
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124 return 0;
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125 }
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126
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127 m_model = 0;
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128 m_frameCount = 0;
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129
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130 QString folder = getRecordFolder();
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131 if (folder == "") return 0;
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132 QDir recordedDir(folder);
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133
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134 QDateTime now = QDateTime::currentDateTime();
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135
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136 // Don't use QDateTime::toString(Qt::ISODate) as the ":" character
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137 // isn't permitted in filenames on Windows
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138 QString filename = QString("recorded-%1.wav")
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139 .arg(now.toString("yyyyMMdd-HHmmss-zzz"));
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140
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141 m_audioFileName = recordedDir.filePath(filename);
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142
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143 m_model = new WritableWaveFileModel(m_recordSampleRate, 2, m_audioFileName);
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144
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145 if (!m_model->isOK()) {
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146 cerr << "ERROR: AudioRecordTarget::startRecording: Recording failed"
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147 << endl;
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148 //!!! and throw?
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149 delete m_model;
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150 m_model = 0;
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151 return 0;
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152 }
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153
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154 m_recording = true;
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155 }
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156
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157 emit recordStatusChanged(true);
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158 return m_model;
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159 }
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160
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161 void
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162 AudioRecordTarget::stopRecording()
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163 {
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164 {
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165 QMutexLocker locker(&m_mutex);
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166 if (!m_recording) {
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167 cerr << "WARNING: AudioRecordTarget::startRecording: Not recording" << endl;
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168 return;
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169 }
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170
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171 m_model->writeComplete();
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172 m_model = 0;
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173 m_recording = false;
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174 }
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175
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176 emit recordStatusChanged(false);
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177 emit recordCompleted();
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178 }
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179
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180
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