初始化内容

third/midifile/tools/textmidi.cpp

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+//
+// Programmer:    Craig Stuart Sapp <craig@ccrma.stanford.edu>
+// Creation Date: Sat Nov 27 11:43:31 PST 1999
+// Last Modified: Mon Feb  9 21:26:32 PST 2015 Updated for C++11.
+// Filename:      tools/textmidi.cpp
+// URL:           https://github.com/craigsapp/midifile/blob/master/tools/textmidi.cpp
+// Syntax:        C++11
+// vim:           ts=3
+//
+// Description:   Reads a MIDI file and converts data to/from ASCII text.
+//
+
+#include "Options.h"
+#include "MidiFile.h"
+
+#include <iostream>
+
+using namespace std;
+using namespace smf;
+
+#define STYLE_TIME_DELTA      'd'
+#define STYLE_TIME_ABSOLUTE   'a'
+
+
+void  checkOptions    (Options& opts);
+void  example         (void);
+void  usage           (const char* command);
+
+// Global variables:
+int timestyle = STYLE_TIME_DELTA;    // command-line style options (-a | -d)
+
+
+///////////////////////////////////////////////////////////////////////////
+
+int main(int argc, char** argv) {
+	MidiFile  inputfile;
+	Options   options(argc, argv);
+
+	checkOptions(options);
+	for (int i=1; i<=options.getArgCount(); i++) {
+		bool status = inputfile.read(options.getArg(i));
+		if (options.getArgCount() > 1) {
+			cout << "\n\n\n+++ FILE " << i << "++++++++++++++++++++++++++++\n\n";
+		}
+		if (status == true) {
+			switch (timestyle) {
+				case 'd': inputfile.deltaTicks();    break;
+				case 'a': inputfile.absoluteTicks(); break;
+			}
+			cout << inputfile;
+		} else {
+			cout << "Syntax error in file: " << options.getArg(i) << "\n";
+		}
+	}
+
+	return 0;
+}
+
+///////////////////////////////////////////////////////////////////////////
+
+
+//////////////////////////////
+//
+// checkOptions -- handle command-line options.
+//
+
+void checkOptions(Options& opts) {
+	opts.define("a|abs|absolute=b");
+	opts.define("d|delta=b");
+	opts.define("author=b");
+	opts.define("version=b");
+	opts.define("example=b");
+	opts.define("help=b");
+	opts.process();
+
+	if (opts.getBoolean("author")) {
+		cout << "Written by Craig Stuart Sapp, "
+		     << "craig@ccrma.stanford.edu, Nov 1999" << endl;
+		exit(0);
+	}
+	if (opts.getBoolean("version")) {
+		cout << "textmidi version 1.0" << endl;
+		cout << "compiled: " << __DATE__ << endl;
+	}
+	if (opts.getBoolean("help")) {
+		usage(opts.getCommand().c_str());
+		exit(0);
+	}
+	if (opts.getBoolean("example")) {
+		example();
+		exit(0);
+	}
+
+	// can only have one output filename
+	if (opts.getArgCount() == 0) {
+		cout << "Error: need one input MIDI file." << endl;
+		usage(opts.getCommand().c_str());
+		exit(1);
+	}
+
+	if (opts.getBoolean("absolute")) {
+		timestyle = STYLE_TIME_ABSOLUTE;
+	}
+
+}
+
+
+
+//////////////////////////////
+//
+// example -- gives example calls to the textmidi program.
+//
+
+void example(void) {
+	cout <<
+	"# textmidi examples:                                                     \n"
+	"       textmidi -a midifile.mid | more                                   \n"
+	<< endl;
+}
+
+
+
+//////////////////////////////
+//
+// usage -- how to run the textmidi program on the command line.
+//
+
+void usage(const char* command) {
+	cout <<
+	"                                                                         \n"
+	"Creates a printable form of the data in a MIDI File.                     \n"
+	"                                                                         \n"
+	"Usage: " << command << " [-d|-a] midifile[s]                             \n"
+	"                                                                         \n"
+	"Options:                                                                 \n"
+	"   -a = set time values to absolute time                                 \n"
+	"   -d = set time values to delta time                                    \n"
+	"   --options = list of all options, aliases and default values.          \n"
+	"                                                                         \n"
+	"                                                                         \n"
+	<< endl;
+}
+
+
+