andrew@2: /*
andrew@2:  *  CannamMidiFileLoader.cpp
andrew@2:  *  midi-score-follower
andrew@2:  *
andrew@2:  *  Created by Andrew on 19/08/2011.
andrew@2:  *  Copyright 2011 QMUL. All rights reserved.
andrew@2:  *
andrew@2:  */
andrew@2: 
andrew@2: #include "MIDIFileReader.h"
andrew@2: #include "CannamMidiFileLoader.h"
andrew@2: 
andrew@3: CannamMidiFileLoader::CannamMidiFileLoader(){
andrew@17: 	chopBeginning = true;
andrew@3: }
andrew@3: 
andrew@2: int CannamMidiFileLoader::loadFile(std::string& filename, midiEventHolder& myMidiEvents){
andrew@2: 		
andrew@3: 		noteOnIndex = 0;
andrew@2: 		myMidiEvents.clearAllEvents();
andrew@2: 		
andrew@2: 		//int main(int argc, char **argv)
andrew@2: 		//{
andrew@2: 		//	if (argc != 2) {
andrew@2: 		//		cerr << "Usage: midifile <file.mid>" << endl;
andrew@2: 		//		return 1;
andrew@2: 		//	}
andrew@2: 		
andrew@2: 	//	std::string filename = midiFileName;//argv[1];
andrew@2: 		
andrew@2: 		MIDIFileReader fr(filename);
andrew@2: 	
andrew@2: 		if (!fr.isOK()) {
andrew@2: 			std::cerr << "Error: " << fr.getError().c_str() << std::endl;
andrew@2: 			return 1;
andrew@2: 		}
andrew@2: 		
andrew@2: 		MIDIComposition c = fr.load();
andrew@2: 		
andrew@2: 		switch (fr.getFormat()) {
andrew@2: 			case MIDI_SINGLE_TRACK_FILE: cout << "Format: MIDI Single Track File" << endl; break;
andrew@2: 			case MIDI_SIMULTANEOUS_TRACK_FILE: cout << "Format: MIDI Simultaneous Track File" << endl; break;
andrew@2: 			case MIDI_SEQUENTIAL_TRACK_FILE: cout << "Format: MIDI Sequential Track File" << endl; break;
andrew@2: 			default: cout << "Format: Unknown MIDI file format?" << endl; break;
andrew@2: 		}
andrew@2: 		
andrew@2: 		cout << "Tracks: " << c.size() << endl;
andrew@2: 		
andrew@2: 		int td = fr.getTimingDivision();
andrew@2: 		if (td < 32768) {
andrew@2: 			cout << "Timing division: " << fr.getTimingDivision() << " ppq" << endl;
andrew@2: 			myMidiEvents.pulsesPerQuarternote = fr.getTimingDivision();
andrew@2: 		} else {
andrew@2: 			int frames = 256 - (td >> 8);
andrew@2: 			int subframes = td & 0xff;
andrew@2: 			cout << "SMPTE timing: " << frames << " fps, " << subframes << " subframes" << endl;
andrew@2: 		}
andrew@2: 		
andrew@2: 		for (MIDIComposition::const_iterator i = c.begin(); i != c.end(); ++i) {
andrew@2: 			
andrew@2: 			cout << "Start of track: " << i->first+1 << endl;
andrew@2: 			
andrew@2: 			for (MIDITrack::const_iterator j = i->second.begin(); j != i->second.end(); ++j) {
andrew@2: 				
andrew@2: 				unsigned int t = j->getTime();
andrew@2: 				int ch = j->getChannelNumber();
andrew@2: 				
andrew@2: 				if (j->isMeta()) {
andrew@2: 					int code = j->getMetaEventCode();
andrew@2: 					string name;
andrew@2: 					bool printable = true;
andrew@2: 					switch (code) {
andrew@2: 							
andrew@2: 						case MIDI_END_OF_TRACK:
andrew@2: 							cout << t << ": End of track" << endl;
andrew@2: 							break;
andrew@2: 							
andrew@2: 						case MIDI_TEXT_EVENT: name = "Text"; break;
andrew@2: 						case MIDI_COPYRIGHT_NOTICE: name = "Copyright"; break;
andrew@2: 						case MIDI_TRACK_NAME: name = "Track name"; break;
andrew@2: 						case MIDI_INSTRUMENT_NAME: name = "Instrument name"; break;
andrew@2: 						case MIDI_LYRIC: name = "Lyric"; break;
andrew@2: 						case MIDI_TEXT_MARKER: name = "Text marker"; break;
andrew@2: 						case MIDI_SEQUENCE_NUMBER: name = "Sequence number"; printable = false; break;
andrew@2: 						case MIDI_CHANNEL_PREFIX_OR_PORT: name = "Channel prefix or port"; printable = false; break;
andrew@2: 						case MIDI_CUE_POINT: name = "Cue point"; break;
andrew@2: 						case MIDI_CHANNEL_PREFIX: name = "Channel prefix"; printable = false; break;
andrew@2: 						case MIDI_SEQUENCER_SPECIFIC: name = "Sequencer specific"; printable = false; break;
andrew@2: 						case MIDI_SMPTE_OFFSET: name = "SMPTE offset"; printable = false; break;
andrew@2: 							
andrew@2: 						case MIDI_SET_TEMPO:
andrew@2: 						{
andrew@2: 							int m0 = j->getMetaMessage()[0];
andrew@2: 							int m1 = j->getMetaMessage()[1];
andrew@2: 							int m2 = j->getMetaMessage()[2];
andrew@2: 							long tempo = (((m0 << 8) + m1) << 8) + m2;
andrew@2: 							
andrew@2: 							cout << t << ": Tempo: " << 60000000.0 / double(tempo) << endl;
andrew@2: 							myMidiEvents.tempo = 60000000.0 / double(tempo);
andrew@2: 							myMidiEvents.period = double(tempo)/1000.0;
andrew@2: 							
andrew@2: 							printf("period double is %f\n", myMidiEvents.period);
andrew@2: 						}
andrew@2: 							break;
andrew@2: 							
andrew@2: 						case MIDI_TIME_SIGNATURE:
andrew@2: 						{
andrew@2: 							int numerator = j->getMetaMessage()[0];
andrew@2: 							int denominator = 1 << (int)j->getMetaMessage()[1];
andrew@2: 							
andrew@2: 							cout << t << ": Time signature: " << numerator << "/" << denominator << endl;
andrew@2: 						}
andrew@2: 							
andrew@2: 						case MIDI_KEY_SIGNATURE:
andrew@2: 						{
andrew@2: 							int accidentals = j->getMetaMessage()[0];
andrew@2: 							int isMinor = j->getMetaMessage()[1];
andrew@2: 							bool isSharp = accidentals < 0 ? false : true;
andrew@2: 							accidentals = accidentals < 0 ? -accidentals : accidentals;
andrew@2: 							cout << t << ": Key signature: " << accidentals << " "
andrew@2: 							<< (isSharp ?
andrew@2: 								(accidentals > 1 ? "sharps" : "sharp") :
andrew@2: 								(accidentals > 1 ? "flats" : "flat"))
andrew@2: 							<< (isMinor ? ", minor" : ", major") << endl;
andrew@2: 						}
andrew@2: 							
andrew@2: 					}
andrew@2: 					
andrew@2: 					
andrew@2: 					if (name != "") {
andrew@2: 						if (printable) {
andrew@2: 							cout << t << ": File meta event: code " << code
andrew@2: 							<< ": " << name << ": \"" << j->getMetaMessage()
andrew@2: 							<< "\"" << endl;
andrew@2: 						} else {
andrew@2: 							cout << t << ": File meta event: code " << code
andrew@2: 							<< ": " << name << ": ";
andrew@2: 							for (int k = 0; k < j->getMetaMessage().length(); ++k) {
andrew@2: 								cout << (int)j->getMetaMessage()[k] << " ";
andrew@2: 							}
andrew@2: 						}
andrew@2: 					}
andrew@2: 					continue;
andrew@2: 				}
andrew@2: 				
andrew@2: 				switch (j->getMessageType()) {
andrew@2: 						
andrew@2: 					case MIDI_NOTE_ON:
andrew@14: 						cout << t << ": Note: channel " << ch
andrew@2: 						<< " duration " << j->getDuration()
andrew@2: 						<< " pitch " << j->getPitch()
andrew@2: 						<< " velocity " << j->getVelocity() 
andrew@2: 						<< "event time " << myMidiEvents.getEventTimeMillis(t) << endl;
andrew@14: 				
andrew@3: 						
andrew@3: 						if (noteOnIndex == 0){
andrew@3: 							firstTickTime = t;
andrew@3: 						}
andrew@3: 						
andrew@3: 						noteOnIndex++;
andrew@3: 						
andrew@2: 						v.clear();
andrew@3: 						
andrew@3: 						if (!chopBeginning)
andrew@3: 							v.push_back(t);
andrew@3: 						else
andrew@3: 							v.push_back(t - firstTickTime);
andrew@3: 						
andrew@2: 						v.push_back(j->getPitch());
andrew@2: 						v.push_back(j->getVelocity());
andrew@2: 						v.push_back(j->getDuration());
andrew@2: 						myMidiEvents.recordedNoteOnMatrix.push_back(v);
andrew@3: 						
andrew@5: 						myMidiEvents.noteOnMatches.push_back(false);
andrew@5: 						
andrew@2: 						break;
andrew@2: 						
andrew@2: 					case MIDI_POLY_AFTERTOUCH:
andrew@2: 						cout << t << ": Polyphonic aftertouch: channel " << ch
andrew@2: 						<< " pitch " << j->getPitch()
andrew@2: 						<< " pressure " << j->getData2() << endl;
andrew@2: 						break;
andrew@2: 						
andrew@2: 					case MIDI_CTRL_CHANGE:
andrew@2: 					{
andrew@2: 						int controller = j->getData1();
andrew@2: 						string name;
andrew@2: 						switch (controller) {
andrew@2: 							case MIDI_CONTROLLER_BANK_MSB: name = "Bank select MSB"; break;
andrew@2: 							case MIDI_CONTROLLER_VOLUME: name = "Volume"; break;
andrew@2: 							case MIDI_CONTROLLER_BANK_LSB: name = "Bank select LSB"; break;
andrew@2: 							case MIDI_CONTROLLER_MODULATION: name = "Modulation wheel"; break;
andrew@2: 							case MIDI_CONTROLLER_PAN: name = "Pan"; break;
andrew@2: 							case MIDI_CONTROLLER_SUSTAIN: name = "Sustain"; break;
andrew@2: 							case MIDI_CONTROLLER_RESONANCE: name = "Resonance"; break;
andrew@2: 							case MIDI_CONTROLLER_RELEASE: name = "Release"; break;
andrew@2: 							case MIDI_CONTROLLER_ATTACK: name = "Attack"; break;
andrew@2: 							case MIDI_CONTROLLER_FILTER: name = "Filter"; break;
andrew@2: 							case MIDI_CONTROLLER_REVERB: name = "Reverb"; break;
andrew@2: 							case MIDI_CONTROLLER_CHORUS: name = "Chorus"; break;
andrew@2: 							case MIDI_CONTROLLER_NRPN_1: name = "NRPN 1"; break;
andrew@2: 							case MIDI_CONTROLLER_NRPN_2: name = "NRPN 2"; break;
andrew@2: 							case MIDI_CONTROLLER_RPN_1: name = "RPN 1"; break;
andrew@2: 							case MIDI_CONTROLLER_RPN_2: name = "RPN 2"; break;
andrew@2: 							case MIDI_CONTROLLER_SOUNDS_OFF: name = "All sounds off"; break;
andrew@2: 							case MIDI_CONTROLLER_RESET: name = "Reset"; break;
andrew@2: 							case MIDI_CONTROLLER_LOCAL: name = "Local"; break;
andrew@2: 							case MIDI_CONTROLLER_ALL_NOTES_OFF: name = "All notes off"; break;
andrew@2: 						}
andrew@2: 						cout << t << ": Controller change: channel " << ch
andrew@2: 						<< " controller " << j->getData1();
andrew@2: 						if (name != "") cout << " (" << name << ")";
andrew@2: 						cout << " value " << j->getData2() << endl;
andrew@2: 					}
andrew@2: 						break;
andrew@2: 						
andrew@2: 					case MIDI_PROG_CHANGE:
andrew@2: 						cout << t << ": Program change: channel " << ch
andrew@2: 						<< " program " << j->getData1() << endl;
andrew@2: 						break;
andrew@2: 						
andrew@2: 					case MIDI_CHNL_AFTERTOUCH:
andrew@2: 						cout << t << ": Channel aftertouch: channel " << ch
andrew@2: 						<< " pressure " << j->getData1() << endl;
andrew@2: 						break;
andrew@2: 						
andrew@2: 					case MIDI_PITCH_BEND:
andrew@2: 						cout << t << ": Pitch bend: channel " << ch
andrew@2: 						<< " value " << (int)j->getData2() * 128 + (int)j->getData1() << endl;
andrew@2: 						break;
andrew@2: 						
andrew@2: 					case MIDI_SYSTEM_EXCLUSIVE:
andrew@2: 						cout << t << ": System exclusive: code "
andrew@2: 						<< (int)j->getMessageType() << " message length " <<
andrew@2: 						j->getMetaMessage().length() << endl;
andrew@2: 						break;
andrew@2: 						
andrew@2: 						
andrew@2: 				}
andrew@2: 				
andrew@2: 				
andrew@2: 			}
andrew@2: 			
andrew@2: 			
andrew@2: 		}
andrew@16: 	
andrew@17: 	myMidiEvents.printRecordedEvents();
andrew@16: 	printf("|||||||||||||||||||||| \n\n\n\n\n\n\n");
andrew@16: 	myMidiEvents.reorderMatrixFromNoteTimes(myMidiEvents.recordedNoteOnMatrix);
andrew@16: 	myMidiEvents.correctTiming(myMidiEvents.recordedNoteOnMatrix);
andrew@17: 	myMidiEvents.doublecheckOrder(myMidiEvents.recordedNoteOnMatrix);
andrew@16: 
andrew@17: 	createEventTiming(myMidiEvents);
andrew@17: 	
andrew@17: 	myMidiEvents.printRecordedEvents();		
andrew@17: 	
andrew@17: }//end cannam midi main
andrew@17: 	
andrew@17: 
andrew@17: void CannamMidiFileLoader::createEventTiming( midiEventHolder& myMidiEvents){
andrew@16: 	
andrew@16: 	long t;
andrew@16: 	t = myMidiEvents.recordedNoteOnMatrix[0][0];
andrew@16: 	firstNoteTime = myMidiEvents.getEventTimeMillis(t);
andrew@16: 	
andrew@16: 	for (int i = 0; i < myMidiEvents.recordedNoteOnMatrix.size();i++){
andrew@16: 		t = myMidiEvents.recordedNoteOnMatrix[i][0];
andrew@2: 		
andrew@16: 		if (!chopBeginning)
andrew@16: 			myMidiEvents.recordedEventTimes.push_back(myMidiEvents.getEventTimeMillis(t));
andrew@16: 		else {
andrew@16: 			myMidiEvents.recordedEventTimes.push_back(myMidiEvents.getEventTimeMillis(t) - firstNoteTime);
andrew@17: 			
andrew@16: 		}
andrew@16: 	}
andrew@16: 	
andrew@17: }
andrew@2: 	
andrew@2: 
andrew@2: