100 lines
2.2 KiB
C++
100 lines
2.2 KiB
C++
//
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// Programmer: Craig Stuart Sapp <craig@ccrma.stanford.edu>
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// Creation Date: Thu Jun 29 14:05:26 PDT 2023
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// Last Modified: Thu Jun 29 14:05:31 PDT 2023
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// Filename: tools/midiuniq.cpp
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// URL: https://github.com/craigsapp/midifile/blob/master/tools/midiuniq.cpp
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// Syntax: C++11
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// vim: ts=3
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//
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// Description: When notes attacks for the same pitch occur at
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// the same time, remove one of them.
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//
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#include "MidiFile.h"
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#include "Options.h"
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#include <iostream>
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using namespace std;
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using namespace smf;
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void processFile(MidiFile& midifile, Options& options);
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///////////////////////////////////////////////////////////////////////////
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int main(int argc, char** argv) {
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Options options;
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options.process(argc, argv);
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MidiFile midifile;
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if (options.getArgCount() == 0) {
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midifile.read(cin);
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processFile(midifile, options);
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} else {
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int count = options.getArgCount();
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if (count != 2) {
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cerr << "Usage: << options.getCommand input.mid output.mid" << endl;
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exit(1);
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}
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string filename = options.getArg(1);
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midifile.read(filename);
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processFile(midifile, options);
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midifile.write(options.getArg(2));
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}
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return 0;
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}
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///////////////////////////////////////////////////////////////////////////
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//////////////////////////////
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//
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// processFile --
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//
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void processFile(MidiFile& midifile, Options& options) {
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midifile.linkNotePairs();
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midifile.joinTracks();
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MidiEvent* lastNote = NULL;
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for (int e=0; e<midifile[0].getEventCount(); e++) {
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MidiEvent *curNote = &midifile[0][e];
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if (!curNote->isNoteOn()) {
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continue;
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}
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if (!lastNote) {
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lastNote = curNote;
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continue;
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}
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int tick = curNote->tick;
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if (tick != lastNote->tick) {
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lastNote = curNote;
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continue;
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}
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int pitch = curNote->getKeyNumber();
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if (pitch != lastNote->getKeyNumber()) {
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lastNote = curNote;
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continue;
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}
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// Notes are the same pitch at the same time
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// so remvove the shorter one (maybe enhand to be
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// in the same channel as an option?)
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int cdur = curNote->getTickDuration();
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int odur = lastNote->getTickDuration();
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if (cdur < odur) {
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cerr << "DELETEING CURNOTE" << endl;
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curNote->clear();
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} else {
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cerr << "DELETEING LASTNOTE" << endl;
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lastNote->clear();
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}
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}
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}
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