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comparison src/CannamMidiFileLoader.cpp @ 2:5581023e0de4

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Added separate CannamMidiFileLoader class to handle the loading in.
author Andrew N Robertson <andrew.robertson@eecs.qmul.ac.uk>
date Fri, 19 Aug 2011 01:26:40 +0100
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children de86d77f2612
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1:1a32ce016bb9 2:5581023e0de4
1 /*
2 * CannamMidiFileLoader.cpp
3 * midi-score-follower
4 *
5 * Created by Andrew on 19/08/2011.
6 * Copyright 2011 QMUL. All rights reserved.
7 *
8 */
9
10 #include "MIDIFileReader.h"
11 #include "CannamMidiFileLoader.h"
12
13 int CannamMidiFileLoader::loadFile(std::string& filename, midiEventHolder& myMidiEvents){
14
15
16 myMidiEvents.clearAllEvents();
17
18 //int main(int argc, char **argv)
19 //{
20 // if (argc != 2) {
21 // cerr << "Usage: midifile <file.mid>" << endl;
22 // return 1;
23 // }
24
25 // std::string filename = midiFileName;//argv[1];
26
27 MIDIFileReader fr(filename);
28
29 if (!fr.isOK()) {
30 std::cerr << "Error: " << fr.getError().c_str() << std::endl;
31 return 1;
32 }
33
34 MIDIComposition c = fr.load();
35
36 switch (fr.getFormat()) {
37 case MIDI_SINGLE_TRACK_FILE: cout << "Format: MIDI Single Track File" << endl; break;
38 case MIDI_SIMULTANEOUS_TRACK_FILE: cout << "Format: MIDI Simultaneous Track File" << endl; break;
39 case MIDI_SEQUENTIAL_TRACK_FILE: cout << "Format: MIDI Sequential Track File" << endl; break;
40 default: cout << "Format: Unknown MIDI file format?" << endl; break;
41 }
42
43 cout << "Tracks: " << c.size() << endl;
44
45 int td = fr.getTimingDivision();
46 if (td < 32768) {
47 cout << "Timing division: " << fr.getTimingDivision() << " ppq" << endl;
48
49 myMidiEvents.pulsesPerQuarternote = fr.getTimingDivision();
50 } else {
51 int frames = 256 - (td >> 8);
52 int subframes = td & 0xff;
53 cout << "SMPTE timing: " << frames << " fps, " << subframes << " subframes" << endl;
54 }
55
56 for (MIDIComposition::const_iterator i = c.begin(); i != c.end(); ++i) {
57
58 cout << "Start of track: " << i->first+1 << endl;
59
60 for (MIDITrack::const_iterator j = i->second.begin(); j != i->second.end(); ++j) {
61
62 unsigned int t = j->getTime();
63 int ch = j->getChannelNumber();
64
65 if (j->isMeta()) {
66 int code = j->getMetaEventCode();
67 string name;
68 bool printable = true;
69 switch (code) {
70
71 case MIDI_END_OF_TRACK:
72 cout << t << ": End of track" << endl;
73 break;
74
75 case MIDI_TEXT_EVENT: name = "Text"; break;
76 case MIDI_COPYRIGHT_NOTICE: name = "Copyright"; break;
77 case MIDI_TRACK_NAME: name = "Track name"; break;
78 case MIDI_INSTRUMENT_NAME: name = "Instrument name"; break;
79 case MIDI_LYRIC: name = "Lyric"; break;
80 case MIDI_TEXT_MARKER: name = "Text marker"; break;
81 case MIDI_SEQUENCE_NUMBER: name = "Sequence number"; printable = false; break;
82 case MIDI_CHANNEL_PREFIX_OR_PORT: name = "Channel prefix or port"; printable = false; break;
83 case MIDI_CUE_POINT: name = "Cue point"; break;
84 case MIDI_CHANNEL_PREFIX: name = "Channel prefix"; printable = false; break;
85 case MIDI_SEQUENCER_SPECIFIC: name = "Sequencer specific"; printable = false; break;
86 case MIDI_SMPTE_OFFSET: name = "SMPTE offset"; printable = false; break;
87
88 case MIDI_SET_TEMPO:
89 {
90 int m0 = j->getMetaMessage()[0];
91 int m1 = j->getMetaMessage()[1];
92 int m2 = j->getMetaMessage()[2];
93 long tempo = (((m0 << 8) + m1) << 8) + m2;
94
95 cout << t << ": Tempo: " << 60000000.0 / double(tempo) << endl;
96 myMidiEvents.tempo = 60000000.0 / double(tempo);
97 myMidiEvents.period = double(tempo)/1000.0;
98
99 printf("period double is %f\n", myMidiEvents.period);
100 }
101 break;
102
103 case MIDI_TIME_SIGNATURE:
104 {
105 int numerator = j->getMetaMessage()[0];
106 int denominator = 1 << (int)j->getMetaMessage()[1];
107
108 cout << t << ": Time signature: " << numerator << "/" << denominator << endl;
109 }
110
111 case MIDI_KEY_SIGNATURE:
112 {
113 int accidentals = j->getMetaMessage()[0];
114 int isMinor = j->getMetaMessage()[1];
115 bool isSharp = accidentals < 0 ? false : true;
116 accidentals = accidentals < 0 ? -accidentals : accidentals;
117 cout << t << ": Key signature: " << accidentals << " "
118 << (isSharp ?
119 (accidentals > 1 ? "sharps" : "sharp") :
120 (accidentals > 1 ? "flats" : "flat"))
121 << (isMinor ? ", minor" : ", major") << endl;
122 }
123
124 }
125
126
127 if (name != "") {
128 if (printable) {
129 cout << t << ": File meta event: code " << code
130 << ": " << name << ": \"" << j->getMetaMessage()
131 << "\"" << endl;
132 } else {
133 cout << t << ": File meta event: code " << code
134 << ": " << name << ": ";
135 for (int k = 0; k < j->getMetaMessage().length(); ++k) {
136 cout << (int)j->getMetaMessage()[k] << " ";
137 }
138 }
139 }
140 continue;
141 }
142
143 switch (j->getMessageType()) {
144
145 case MIDI_NOTE_ON:
146 cout << t << ": Note: channel " << ch
147 << " duration " << j->getDuration()
148 << " pitch " << j->getPitch()
149 << " velocity " << j->getVelocity()
150 << "event time " << myMidiEvents.getEventTimeMillis(t) << endl;
151 v.clear();
152 v.push_back(t);
153 v.push_back(j->getPitch());
154 v.push_back(j->getVelocity());
155 v.push_back(j->getDuration());
156 myMidiEvents.recordedNoteOnMatrix.push_back(v);
157 myMidiEvents.recordedEventTimes.push_back(myMidiEvents.getEventTimeMillis(t));
158 break;
159
160 case MIDI_POLY_AFTERTOUCH:
161 cout << t << ": Polyphonic aftertouch: channel " << ch
162 << " pitch " << j->getPitch()
163 << " pressure " << j->getData2() << endl;
164 break;
165
166 case MIDI_CTRL_CHANGE:
167 {
168 int controller = j->getData1();
169 string name;
170 switch (controller) {
171 case MIDI_CONTROLLER_BANK_MSB: name = "Bank select MSB"; break;
172 case MIDI_CONTROLLER_VOLUME: name = "Volume"; break;
173 case MIDI_CONTROLLER_BANK_LSB: name = "Bank select LSB"; break;
174 case MIDI_CONTROLLER_MODULATION: name = "Modulation wheel"; break;
175 case MIDI_CONTROLLER_PAN: name = "Pan"; break;
176 case MIDI_CONTROLLER_SUSTAIN: name = "Sustain"; break;
177 case MIDI_CONTROLLER_RESONANCE: name = "Resonance"; break;
178 case MIDI_CONTROLLER_RELEASE: name = "Release"; break;
179 case MIDI_CONTROLLER_ATTACK: name = "Attack"; break;
180 case MIDI_CONTROLLER_FILTER: name = "Filter"; break;
181 case MIDI_CONTROLLER_REVERB: name = "Reverb"; break;
182 case MIDI_CONTROLLER_CHORUS: name = "Chorus"; break;
183 case MIDI_CONTROLLER_NRPN_1: name = "NRPN 1"; break;
184 case MIDI_CONTROLLER_NRPN_2: name = "NRPN 2"; break;
185 case MIDI_CONTROLLER_RPN_1: name = "RPN 1"; break;
186 case MIDI_CONTROLLER_RPN_2: name = "RPN 2"; break;
187 case MIDI_CONTROLLER_SOUNDS_OFF: name = "All sounds off"; break;
188 case MIDI_CONTROLLER_RESET: name = "Reset"; break;
189 case MIDI_CONTROLLER_LOCAL: name = "Local"; break;
190 case MIDI_CONTROLLER_ALL_NOTES_OFF: name = "All notes off"; break;
191 }
192 cout << t << ": Controller change: channel " << ch
193 << " controller " << j->getData1();
194 if (name != "") cout << " (" << name << ")";
195 cout << " value " << j->getData2() << endl;
196 }
197 break;
198
199 case MIDI_PROG_CHANGE:
200 cout << t << ": Program change: channel " << ch
201 << " program " << j->getData1() << endl;
202 break;
203
204 case MIDI_CHNL_AFTERTOUCH:
205 cout << t << ": Channel aftertouch: channel " << ch
206 << " pressure " << j->getData1() << endl;
207 break;
208
209 case MIDI_PITCH_BEND:
210 cout << t << ": Pitch bend: channel " << ch
211 << " value " << (int)j->getData2() * 128 + (int)j->getData1() << endl;
212 break;
213
214 case MIDI_SYSTEM_EXCLUSIVE:
215 cout << t << ": System exclusive: code "
216 << (int)j->getMessageType() << " message length " <<
217 j->getMetaMessage().length() << endl;
218 break;
219
220
221 }
222
223
224 }
225
226
227 }
228
229
230
231
232 }//end cannam midi main
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