初始化内容

third/midifile/tools/shutak.cpp

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+//
+// Programmer:    Craig Stuart Sapp <craig@ccrma.stanford.edu>
+// Creation Date: Tue Feb 10 21:57:42 PST 2015
+// Last Modified: Tue Feb 10 21:57:45 PST 2015
+// Filename:      tools/shutak.cpp
+// URL:           https://github.com/craigsapp/midifile/blob/master/tools/shutak.cpp
+// Syntax:        C++11
+// vim:           ts=3
+//
+// Description:   Convert lines of MIDI note numbers into MIDI files.
+//                Multiple lines will be placed in multiple tracks.
+//                Each note has the duration of one second (quarter notes
+//                at MM60).
+//
+// Each row of input is a set of numbers for MIDI pitches that are
+// played one per second:
+//                77      74      81      69      81      62
+//
+// If there are more than one row, each row is played in parallel
+// with the other:
+//                66      81      63      79      64      62
+//                75      68      66      76      81      66
+//                63      64      75      68      77      73
+// In this case the first three notes that are played together are:
+//     (66, 75, 63)
+//
+
+#include "Options.h"
+#include "MidiFile.h"
+
+#include <cstring>
+#include <iostream>
+#include <sstream>
+#include <string>
+
+using namespace std;
+using namespace smf;
+
+
+void     checkOptions        (Options& opts);
+void     createMidiFile      (const char* filename,
+                              vector<vector<int> >& sequence);
+void     processFile         (const string& filename);
+void     getData             (vector<vector<int> >& sequence,
+                              const string& filename);
+void     example             (void);
+void     usage               (const string& command);
+
+// User interface variables:
+Options  options;            // for command-line processing
+
+
+///////////////////////////////////////////////////////////////////////////
+
+int main(int argc, char** argv) {
+	options.setOptions(argc, argv);
+	checkOptions(options);
+	string line;
+	for (int i=1; i<=options.getArgCount(); i++) {
+		processFile(options.getArg(i));
+	}
+
+	return 0;
+}
+
+///////////////////////////////////////////////////////////////////////////
+
+
+
+//////////////////////////////
+//
+// processFile -- Convert file into a MIDI file.
+//
+
+void processFile(const string& filename) {
+	char buffer[1024] = {0};
+	strncpy(buffer, filename.c_str(),1000);
+	char* ptr = strrchr(buffer, '.');
+	if (ptr != NULL) {
+		*ptr = '\0';
+	}
+	strcat(buffer, ".mid");
+
+	vector<vector<int> > sequence;
+	getData(sequence, filename);
+
+	createMidiFile(buffer, sequence);
+}
+
+
+
+//////////////////////////////
+//
+// createMidiFile --
+//
+
+void createMidiFile(const char* filename, vector<vector<int> >& sequence) {
+	MidiFile midifile;
+	midifile.absoluteTicks();
+	midifile.addTrack(1);
+	int tpq = 120;
+	double beat = 0.0;
+	midifile.setTicksPerQuarterNote(tpq);
+
+
+	MidiEvent tempo;
+	tempo.setMetaTempo(60.0);
+	tempo.track = 0;
+	tempo.tick = 0;
+	midifile.addEvent(tempo);
+
+	int maxlen = 0;
+	int i, j;
+	for (i=0; i<(int)sequence.size(); i++) {
+		if ((int)sequence[i].size() > maxlen) {
+			maxlen = (int)sequence[i].size();
+		}
+	}
+
+	vector<int> notelist;
+	MidiEvent noteon(0x90, 0, 64);
+	MidiEvent noteoff(0x80, 0, 64);
+	noteon.track  = 1;
+	noteoff.track = 1;
+
+	for (i=0; i<maxlen; i++) {
+		notelist.clear();
+		for (j=0; j<(int)sequence.size(); j++) {
+			if (i<(int)sequence[j].size()) {
+				notelist.push_back(sequence[j][i]);
+			}
+		}
+		for (j=0; j<(int)notelist.size(); j++) {
+			noteon[1]  = 0x7f & notelist[j];
+			noteoff[1] = 0x7f & notelist[j];
+			noteon.tick  = (int)(beat * tpq + 0.5);
+			noteoff.tick = (int)(beat * tpq + 1 * tpq + 0.5);
+			midifile.addEvent(noteon);
+			midifile.addEvent(noteoff);
+		}
+		beat += 1.0;
+	}
+
+	midifile.sortTracks();
+	midifile.write(filename);
+}
+
+
+
+//////////////////////////////
+//
+// getData -- Extract MIDI key numbers from input file.
+//
+
+void getData(vector<vector<int> >& sequence, const string& filename) {
+	ifstream infile;
+	infile.open(filename.c_str());
+	string line;
+	int key;
+	stringstream sss;
+	sequence.clear();
+	vector<int> list;
+	while (getline(infile, line)) {
+		cout << "LINE = " << line << "\n";
+		sss.clear();
+		list.clear();
+		sss << line;
+		while (sss >> key) {
+			list.push_back(key);
+		}
+		if (list.size() == 0) {
+			continue;
+		}
+		sequence.push_back(list);
+	}
+	infile.close();
+}
+
+
+
+//////////////////////////////
+//
+// checkOptions --
+//
+
+void checkOptions(Options& opts) {
+	opts.define("author=b",   "author of the program");
+	opts.define("version=b",  "version of the program");
+	opts.define("example=b",  "example useage of the program");
+	opts.define("h|help=b",   "list of options for the program");
+	opts.process();
+
+	if (opts.getBoolean("author")) {
+		cout << "Written by Craig Stuart Sapp, "
+		     << "craig@ccrma.stanford.edu, February 2015" << endl;
+		exit(0);
+	} else if (opts.getBoolean("version")) {
+		cout << "shutak, version 1.0 (10 Feb 2015)\n"
+		     << "compiled: " << __DATE__ << endl;
+		exit(0);
+	} else if (opts.getBoolean("help")) {
+		usage(opts.getCommand());
+		exit(0);
+	} else if (opts.getBoolean("example")) {
+		example();
+		exit(0);
+	}
+
+	if (opts.getArgCount() == 0) {
+		cerr << "Error: One or more input file is required." << endl;
+		exit(1);
+	}
+
+}
+
+
+
+//////////////////////////////
+//
+// example -- shows various command-line option calls to program.
+//
+
+void example(void) {
+	cout <<
+	"\n"
+	<< endl;
+}
+
+
+
+//////////////////////////////
+//
+// usage -- how to run this program from the command-line.
+//
+
+void usage(const string& command) {
+	cout <<
+	"\n"
+	<< endl;
+}
+
+
+