annotate data/model/NoteModel.h @ 1091:bdebff3265ae simple-fft-model

Simplest naive FFTModel implementation (+ fill in tests)
author Chris Cannam
date Fri, 12 Jun 2015 18:08:57 +0100
parents 57633d605547
children 48e9f538e6e9
rev   line source
Chris@147 1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
Chris@147 2
Chris@147 3 /*
Chris@147 4 Sonic Visualiser
Chris@147 5 An audio file viewer and annotation editor.
Chris@147 6 Centre for Digital Music, Queen Mary, University of London.
Chris@147 7 This file copyright 2006 Chris Cannam.
Chris@147 8
Chris@147 9 This program is free software; you can redistribute it and/or
Chris@147 10 modify it under the terms of the GNU General Public License as
Chris@147 11 published by the Free Software Foundation; either version 2 of the
Chris@147 12 License, or (at your option) any later version. See the file
Chris@147 13 COPYING included with this distribution for more information.
Chris@147 14 */
Chris@147 15
Chris@147 16 #ifndef _NOTE_MODEL_H_
Chris@147 17 #define _NOTE_MODEL_H_
Chris@147 18
Chris@437 19 #include "IntervalModel.h"
Chris@852 20 #include "NoteData.h"
Chris@391 21 #include "base/RealTime.h"
Chris@150 22 #include "base/PlayParameterRepository.h"
Chris@852 23 #include "base/Pitch.h"
Chris@147 24
Chris@147 25 /**
Chris@441 26 * NoteModel -- a concrete IntervalModel for notes.
Chris@441 27 */
Chris@441 28
Chris@441 29 /**
Chris@441 30 * Note type for use in a sparse model. All we mean by a "note" is
Chris@441 31 * something that has an onset time, a single value, a duration, and a
Chris@441 32 * level. Like other points, it can also have a label. With this
Chris@441 33 * point type, the model can be thought of as representing a simple
Chris@441 34 * MIDI-type piano roll, except that the y coordinates (values) do not
Chris@441 35 * have to be discrete integers.
Chris@147 36 */
Chris@147 37
Chris@147 38 struct Note
Chris@147 39 {
Chris@147 40 public:
Chris@1038 41 Note(sv_frame_t _frame) : frame(_frame), value(0.0f), duration(0), level(1.f) { }
Chris@1038 42 Note(sv_frame_t _frame, float _value, sv_frame_t _duration, float _level, QString _label) :
Chris@340 43 frame(_frame), value(_value), duration(_duration), level(_level), label(_label) { }
Chris@147 44
Chris@147 45 int getDimensions() const { return 3; }
Chris@147 46
Chris@1038 47 sv_frame_t frame;
Chris@147 48 float value;
Chris@1038 49 sv_frame_t duration;
Chris@340 50 float level;
Chris@147 51 QString label;
Chris@147 52
Chris@338 53 QString getLabel() const { return label; }
Chris@338 54
Chris@314 55 void toXml(QTextStream &stream,
Chris@314 56 QString indent = "",
Chris@314 57 QString extraAttributes = "") const
Chris@147 58 {
Chris@314 59 stream <<
Chris@340 60 QString("%1<point frame=\"%2\" value=\"%3\" duration=\"%4\" level=\"%5\" label=\"%6\" %7/>\n")
Chris@627 61 .arg(indent).arg(frame).arg(value).arg(duration).arg(level)
Chris@627 62 .arg(XmlExportable::encodeEntities(label)).arg(extraAttributes);
Chris@147 63 }
Chris@147 64
Chris@1060 65 QString toDelimitedDataString(QString delimiter, DataExportOptions opts, sv_samplerate_t sampleRate) const {
Chris@147 66 QStringList list;
Chris@147 67 list << RealTime::frame2RealTime(frame, sampleRate).toString().c_str();
Chris@147 68 list << QString("%1").arg(value);
Chris@340 69 list << RealTime::frame2RealTime(duration, sampleRate).toString().c_str();
Chris@1060 70 if (!(opts & DataExportOmitLevels)) {
Chris@1060 71 list << QString("%1").arg(level);
Chris@1060 72 }
Chris@318 73 if (label != "") list << label;
Chris@147 74 return list.join(delimiter);
Chris@147 75 }
Chris@147 76
Chris@147 77 struct Comparator {
Chris@147 78 bool operator()(const Note &p1,
Chris@147 79 const Note &p2) const {
Chris@147 80 if (p1.frame != p2.frame) return p1.frame < p2.frame;
Chris@147 81 if (p1.value != p2.value) return p1.value < p2.value;
Chris@147 82 if (p1.duration != p2.duration) return p1.duration < p2.duration;
Chris@340 83 if (p1.level != p2.level) return p1.level < p2.level;
Chris@147 84 return p1.label < p2.label;
Chris@147 85 }
Chris@147 86 };
Chris@147 87
Chris@147 88 struct OrderComparator {
Chris@147 89 bool operator()(const Note &p1,
Chris@147 90 const Note &p2) const {
Chris@147 91 return p1.frame < p2.frame;
Chris@147 92 }
Chris@147 93 };
Chris@147 94 };
Chris@147 95
Chris@147 96
Chris@852 97 class NoteModel : public IntervalModel<Note>, public NoteExportable
Chris@147 98 {
Chris@423 99 Q_OBJECT
Chris@423 100
Chris@147 101 public:
Chris@1040 102 NoteModel(sv_samplerate_t sampleRate, int resolution,
Chris@256 103 bool notifyOnAdd = true) :
Chris@437 104 IntervalModel<Note>(sampleRate, resolution, notifyOnAdd),
Chris@256 105 m_valueQuantization(0)
Chris@256 106 {
Chris@391 107 PlayParameterRepository::getInstance()->addPlayable(this);
Chris@256 108 }
Chris@256 109
Chris@1040 110 NoteModel(sv_samplerate_t sampleRate, int resolution,
Chris@147 111 float valueMinimum, float valueMaximum,
Chris@147 112 bool notifyOnAdd = true) :
Chris@437 113 IntervalModel<Note>(sampleRate, resolution,
Chris@437 114 valueMinimum, valueMaximum,
Chris@437 115 notifyOnAdd),
Chris@147 116 m_valueQuantization(0)
Chris@147 117 {
Chris@391 118 PlayParameterRepository::getInstance()->addPlayable(this);
Chris@391 119 }
Chris@391 120
Chris@391 121 virtual ~NoteModel()
Chris@391 122 {
Chris@391 123 PlayParameterRepository::getInstance()->removePlayable(this);
Chris@147 124 }
Chris@147 125
Chris@147 126 float getValueQuantization() const { return m_valueQuantization; }
Chris@147 127 void setValueQuantization(float q) { m_valueQuantization = q; }
Chris@147 128
Chris@345 129 QString getTypeName() const { return tr("Note"); }
Chris@345 130
Chris@391 131 virtual bool canPlay() const { return true; }
Chris@391 132
Chris@866 133 virtual QString getDefaultPlayClipId() const
Chris@391 134 {
Chris@909 135 return "elecpiano";
Chris@391 136 }
Chris@391 137
Chris@288 138 virtual void toXml(QTextStream &out,
Chris@288 139 QString indent = "",
Chris@288 140 QString extraAttributes = "") const
Chris@147 141 {
Chris@318 142 std::cerr << "NoteModel::toXml: extraAttributes = \""
Chris@318 143 << extraAttributes.toStdString() << std::endl;
Chris@318 144
Chris@437 145 IntervalModel<Note>::toXml
Chris@288 146 (out,
Chris@288 147 indent,
Chris@452 148 QString("%1 subtype=\"note\" valueQuantization=\"%2\"")
Chris@147 149 .arg(extraAttributes).arg(m_valueQuantization));
Chris@147 150 }
Chris@147 151
Chris@424 152 /**
Chris@424 153 * TabularModel methods.
Chris@424 154 */
Chris@424 155
Chris@424 156 virtual int getColumnCount() const
Chris@424 157 {
Chris@424 158 return 6;
Chris@424 159 }
Chris@424 160
Chris@424 161 virtual QString getHeading(int column) const
Chris@424 162 {
Chris@424 163 switch (column) {
Chris@424 164 case 0: return tr("Time");
Chris@424 165 case 1: return tr("Frame");
Chris@424 166 case 2: return tr("Pitch");
Chris@424 167 case 3: return tr("Duration");
Chris@424 168 case 4: return tr("Level");
Chris@424 169 case 5: return tr("Label");
Chris@424 170 default: return tr("Unknown");
Chris@424 171 }
Chris@424 172 }
Chris@424 173
Chris@424 174 virtual QVariant getData(int row, int column, int role) const
Chris@424 175 {
Chris@437 176 if (column < 4) {
Chris@437 177 return IntervalModel<Note>::getData(row, column, role);
Chris@425 178 }
Chris@425 179
Chris@606 180 PointListConstIterator i = getPointListIteratorForRow(row);
Chris@424 181 if (i == m_points.end()) return QVariant();
Chris@424 182
Chris@424 183 switch (column) {
Chris@424 184 case 4: return i->level;
Chris@424 185 case 5: return i->label;
Chris@424 186 default: return QVariant();
Chris@424 187 }
Chris@424 188 }
Chris@424 189
Chris@424 190 virtual Command *getSetDataCommand(int row, int column, const QVariant &value, int role)
Chris@424 191 {
Chris@437 192 if (column < 4) {
Chris@437 193 return IntervalModel<Note>::getSetDataCommand
Chris@425 194 (row, column, value, role);
Chris@425 195 }
Chris@425 196
Chris@740 197 if (role != Qt::EditRole) return 0;
Chris@606 198 PointListConstIterator i = getPointListIteratorForRow(row);
Chris@740 199 if (i == m_points.end()) return 0;
Chris@424 200 EditCommand *command = new EditCommand(this, tr("Edit Data"));
Chris@424 201
Chris@424 202 Point point(*i);
Chris@424 203 command->deletePoint(point);
Chris@424 204
Chris@424 205 switch (column) {
Chris@1038 206 case 4: point.level = float(value.toDouble()); break;
Chris@424 207 case 5: point.label = value.toString(); break;
Chris@424 208 }
Chris@424 209
Chris@424 210 command->addPoint(point);
Chris@424 211 return command->finish();
Chris@424 212 }
Chris@424 213
Chris@424 214 virtual SortType getSortType(int column) const
Chris@424 215 {
Chris@424 216 if (column == 5) return SortAlphabetical;
Chris@424 217 return SortNumeric;
Chris@424 218 }
Chris@424 219
Chris@852 220 /**
Chris@852 221 * NoteExportable methods.
Chris@852 222 */
Chris@852 223
Chris@852 224 NoteList getNotes() const {
Chris@929 225 return getNotesWithin(getStartFrame(), getEndFrame());
Chris@852 226 }
Chris@852 227
Chris@1038 228 NoteList getNotesWithin(sv_frame_t startFrame, sv_frame_t endFrame) const {
Chris@852 229
Chris@852 230 PointList points = getPoints(startFrame, endFrame);
Chris@852 231 NoteList notes;
Chris@852 232
Chris@852 233 for (PointList::iterator pli =
Chris@852 234 points.begin(); pli != points.end(); ++pli) {
Chris@852 235
Chris@1038 236 sv_frame_t duration = pli->duration;
Chris@852 237 if (duration == 0 || duration == 1) {
Chris@1040 238 duration = sv_frame_t(getSampleRate() / 20);
Chris@852 239 }
Chris@852 240
Chris@1038 241 int pitch = int(lrintf(pli->value));
Chris@852 242
Chris@852 243 int velocity = 100;
Chris@852 244 if (pli->level > 0.f && pli->level <= 1.f) {
Chris@1038 245 velocity = int(lrintf(pli->level * 127));
Chris@852 246 }
Chris@852 247
Chris@852 248 NoteData note(pli->frame, duration, pitch, velocity);
Chris@852 249
Chris@852 250 if (getScaleUnits() == "Hz") {
Chris@852 251 note.frequency = pli->value;
Chris@852 252 note.midiPitch = Pitch::getPitchForFrequency(note.frequency);
Chris@852 253 note.isMidiPitchQuantized = false;
Chris@852 254 }
Chris@852 255
Chris@852 256 notes.push_back(note);
Chris@852 257 }
Chris@852 258
Chris@852 259 return notes;
Chris@852 260 }
Chris@852 261
Chris@147 262 protected:
Chris@147 263 float m_valueQuantization;
Chris@147 264 };
Chris@147 265
Chris@147 266 #endif