public void handleMessage(ChannelMessage channelMessage, MidiInterpreter midiInterpreter, Score score)
{
if (channelMessage.Data2 > 0)
{
midiInterpreter.CurrentNote = new MidiNoteFactory().create(channelMessage.Data1);
midiInterpreter.StartedNoteIsClosed = false;
}
else if (!midiInterpreter.StartedNoteIsClosed)
{
midiInterpreter.CurrentNote.length = GetNoteLength(
midiInterpreter.PreviousNoteAbsoluteTicks,
midiInterpreter.MidiEvent.AbsoluteTicks,
midiInterpreter.Sequence.Division,
(int)midiInterpreter.timeSignatureLengthNote,
midiInterpreter.beatsPerMessage, out bool dot);
midiInterpreter.CurrentNote.dot = dot;
midiInterpreter.PreviousNoteAbsoluteTicks = midiInterpreter.MidiEvent.AbsoluteTicks;
midiInterpreter.StartedNoteIsClosed = true;
score.staffsInScore.Last().bars.Last().notes.Add(midiInterpreter.CurrentNote);
midiInterpreter.CurrentNote = null;
}
else
{
score.staffsInScore.Last().bars.Last().notes.Add(new Rest()
{
length = midiInterpreter.CurrentNote.length
});
midiInterpreter.StartedNoteIsClosed = false;
}
}
public void handleMessage(MetaMessage metaMessage, MidiInterpreter midi, Score score)
{
byte[] timeSignatureBytes = metaMessage.GetBytes();
var timeSignature = new TimeSignature(timeSignatureBytes[0], (Length)(int)Math.Pow(2, timeSignatureBytes[1]));
midi.beatsPerMessage = timeSignature.beatsPerMeasure;
midi.timeSignatureLengthNote = timeSignature.lengthOfOneBeat;
score.staffsInScore.Last().bars.Last().notes.Add(timeSignature);
}
public void handleMessage(MetaMessage metaMessage, MidiInterpreter midi, Score score)
{
byte[] tempoBytes = metaMessage.GetBytes();
int tempo = (tempoBytes[0] & 0xff) << 16 | (tempoBytes[1] & 0xff) << 8 | (tempoBytes[2] & 0xff);
var bpm = 60000000 / tempo;
var metronome = new Metronome(Length.Quarter, bpm);
score.staffsInScore.Last().bars.Last().notes.Add(metronome);
}
public MidiFileHandler(MidiInterpreter interpreter)
{
this.interpreter = interpreter;
this.fileType = "Midi";
this.possibleExtensions = new List <string> {
".midi", ".mid"
};
CanSave = true;
CanLoad = true;
CanGenerateSequence = true;
}
private void elaborate()
{
machineSequence.Load(machineFileName);
machineTrack = machineSequence[1];
humanSequence.Load(humanFileName);
humanTrack = humanSequence[1];
#region Test area
MidiEvent m = machineTrack.GetMidiEvent(3);
byte[] bytes = m.MidiMessage.GetBytes();
byte firstByte = (byte)(bytes[0] & 0xF0);
byte secondByte = bytes[1];
//MessageBox.Show(Convert.ToString(firstByte, 2) + " note " + secondByte.ToString() + " at " + m.AbsoluteTicks.ToString());
if (m.MidiMessage.GetBytes().Length == 0)
{
// Start or end track! Coded with length 0
}
else
{
if (firstByte == (byte)MidiFirstByte.NoteOff)
{
txtTest.Text = "Note off! ";
}
else if (firstByte == (byte)MidiFirstByte.NoteOn)
{
txtTest.Text = "Note on! ";
}
else
{
txtTest.Text = "Unknown event. ";
}
}
txtTest.Text += " At " + m.AbsoluteTicks.ToString();
#endregion
List <MidiNote> machineNotes = MidiInterpreter.getNotesSequence(machineTrack);
List <MidiNote> humanNotes = MidiInterpreter.getNotesSequence(humanTrack);
List <MidiNote> wrongNotes = MidiInterpreter.getWrongNotes(machineNotes, humanNotes);
List <MidiNote> humanCorrectNotes = MidiInterpreter.getCorrectNotes(machineNotes, humanNotes);
numberHumanNotes = humanNotes.Count();
numberMachineNotes = machineNotes.Count();
numberWrongNotes = wrongNotes.Count();
totalJitter = MidiInterpreter.getTotalJitter(machineNotes, humanCorrectNotes);
avgJitter = totalJitter / machineNotes.Count();
txtNumberMachineNotes.Text = numberMachineNotes.ToString();
txtNumberHumanNotes.Text = numberHumanNotes.ToString();
txtNumberWrongNotes.Text = numberWrongNotes.ToString();
txtTotalJitter.Text = totalJitter.ToString();
txtAverageJitter.Text = avgJitter.ToString();
lstMachineNotes.Items.Clear();
lstMachineNotes.Items.Clear();
lstWrongNotes.Items.Clear();
foreach (MidiNote midiNote in machineNotes)
{
lstMachineNotes.Items.Add(new ListViewItem(midiNote.Key + " at " + midiNote.Time));
}
foreach (MidiNote midiNote in humanNotes)
{
lstHumanNotes.Items.Add(new ListViewItem(midiNote.Key + " at " + midiNote.Time));
}
foreach (MidiNote midiNote in wrongNotes)
{
lstWrongNotes.Items.Add(new ListViewItem(midiNote.Key + " at " + midiNote.Time));
}
}
