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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 This file copyright 2006 Chris Cannam.
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8
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9 This program is free software; you can redistribute it and/or
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10 modify it under the terms of the GNU General Public License as
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11 published by the Free Software Foundation; either version 2 of the
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12 License, or (at your option) any later version. See the file
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13 COPYING included with this distribution for more information.
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14 */
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15
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16 #ifndef SV_SPARSE_ONE_DIMENSIONAL_MODEL_H
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17 #define SV_SPARSE_ONE_DIMENSIONAL_MODEL_H
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18
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19 #include "SparseModel.h"
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20 #include "NoteData.h"
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21 #include "base/PlayParameterRepository.h"
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22 #include "base/RealTime.h"
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23
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24 #include <QStringList>
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25
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26 struct OneDimensionalPoint
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27 {
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28 public:
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29 OneDimensionalPoint(sv_frame_t _frame) : frame(_frame) { }
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30 OneDimensionalPoint(sv_frame_t _frame, QString _label) : frame(_frame), label(_label) { }
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31
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32 int getDimensions() const { return 1; }
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33
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34 sv_frame_t frame;
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35 QString label;
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36
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37 QString getLabel() const { return label; }
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38
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39 void toXml(QTextStream &stream,
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40 QString indent = "",
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41 QString extraAttributes = "") const
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42 {
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43 stream << QString("%1<point frame=\"%2\" label=\"%3\" %4/>\n")
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44 .arg(indent).arg(frame).arg(XmlExportable::encodeEntities(label))
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45 .arg(extraAttributes);
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46 }
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47
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48 QString toDelimitedDataString(QString delimiter, DataExportOptions, sv_samplerate_t sampleRate) const
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49 {
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50 QStringList list;
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51 list << RealTime::frame2RealTime(frame, sampleRate).toString().c_str();
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52 if (label != "") list << label;
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53 return list.join(delimiter);
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54 }
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55
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56 struct Comparator {
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57 bool operator()(const OneDimensionalPoint &p1,
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58 const OneDimensionalPoint &p2) const {
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59 if (p1.frame != p2.frame) return p1.frame < p2.frame;
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60 return p1.label < p2.label;
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61 }
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62 };
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63
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64 struct OrderComparator {
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65 bool operator()(const OneDimensionalPoint &p1,
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66 const OneDimensionalPoint &p2) const {
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67 return p1.frame < p2.frame;
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68 }
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69 };
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70 };
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71
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72
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73 class SparseOneDimensionalModel : public SparseModel<OneDimensionalPoint>,
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74 public NoteExportable
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75 {
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76 Q_OBJECT
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77
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78 public:
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79 SparseOneDimensionalModel(sv_samplerate_t sampleRate, int resolution,
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80 bool notifyOnAdd = true) :
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81 SparseModel<OneDimensionalPoint>(sampleRate, resolution, notifyOnAdd)
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82 {
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83 PlayParameterRepository::getInstance()->addPlayable(this);
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84 }
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85
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86 virtual ~SparseOneDimensionalModel()
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87 {
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88 PlayParameterRepository::getInstance()->removePlayable(this);
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89 }
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90
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91 bool canPlay() const override { return true; }
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92
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93 QString getDefaultPlayClipId() const override
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94 {
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95 return "tap";
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96 }
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97
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98 int getIndexOf(const Point &point)
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99 {
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100 // slow
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101 int i = 0;
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102 Point::Comparator comparator;
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103 for (PointList::const_iterator j = m_points.begin();
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104 j != m_points.end(); ++j, ++i) {
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105 if (!comparator(*j, point) && !comparator(point, *j)) return i;
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106 }
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107 return -1;
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108 }
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109
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110 QString getTypeName() const override { return tr("Sparse 1-D"); }
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111
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112 /**
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113 * TabularModel methods.
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114 */
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115
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116 int getColumnCount() const override
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117 {
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118 return 3;
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119 }
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120
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121 QString getHeading(int column) const override
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122 {
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123 switch (column) {
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124 case 0: return tr("Time");
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125 case 1: return tr("Frame");
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126 case 2: return tr("Label");
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127 default: return tr("Unknown");
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128 }
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129 }
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130
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131 QVariant getData(int row, int column, int role) const override
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132 {
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133 if (column < 2) {
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134 return SparseModel<OneDimensionalPoint>::getData
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135 (row, column, role);
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136 }
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137
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138 PointListConstIterator i = getPointListIteratorForRow(row);
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139 if (i == m_points.end()) return QVariant();
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140
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141 switch (column) {
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142 case 2: return i->label;
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143 default: return QVariant();
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144 }
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145 }
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146
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147 Command *getSetDataCommand(int row, int column, const QVariant &value, int role) override
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148 {
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149 if (column < 2) {
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150 return SparseModel<OneDimensionalPoint>::getSetDataCommand
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151 (row, column, value, role);
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152 }
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153
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154 if (role != Qt::EditRole) return 0;
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155 PointListConstIterator i = getPointListIteratorForRow(row);
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156 if (i == m_points.end()) return 0;
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157 EditCommand *command = new EditCommand(this, tr("Edit Data"));
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158
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159 Point point(*i);
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160 command->deletePoint(point);
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161
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162 switch (column) {
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163 case 2: point.label = value.toString(); break;
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164 }
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165
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166 command->addPoint(point);
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167 return command->finish();
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168 }
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169
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170
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171 bool isColumnTimeValue(int column) const override
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172 {
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173 return (column < 2);
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174 }
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175
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176 SortType getSortType(int column) const override
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177 {
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178 if (column == 2) return SortAlphabetical;
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179 return SortNumeric;
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180 }
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181
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182 /**
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183 * NoteExportable methods.
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184 */
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185
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186 NoteList getNotes() const override {
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187 return getNotesWithin(getStartFrame(), getEndFrame());
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188 }
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189
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190 NoteList getNotesWithin(sv_frame_t startFrame, sv_frame_t endFrame) const override {
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191
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192 PointList points = getPoints(startFrame, endFrame);
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193 NoteList notes;
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194
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195 for (PointList::iterator pli =
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196 points.begin(); pli != points.end(); ++pli) {
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197
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198 notes.push_back
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199 (NoteData(pli->frame,
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200 sv_frame_t(getSampleRate() / 6), // arbitrary short duration
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201 64, // default pitch
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202 100)); // default velocity
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203 }
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204
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205 return notes;
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206 }
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207 };
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208
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209 #endif
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210
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211
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212
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