/** A NoteOff event occured. Find the MidiNote of the corresponding
* NoteOn event, and update the duration of the MidiNote.
*/
public void NoteOff(int channel, int notenumber, int endtime)
{
for (int i = newTrack.Notes.Count - 1; i >= 0; i--)
{
MidiNote note = newTrack.Notes[i];
if (note.Channel == channel && note.Number == notenumber && note.Duration == 0)
{
note.NoteOff(endtime);
return;
}
}
}
/// <summary>
/// Note_on_c = Note on event, but sometimes also a note off
/// </summary>
/// <param name="ar"></param>
private void StartMidiNote(string[] ar)
{
if (ar.Length != 6)
{
throw new ArgumentException("Note On Length");
}
// format of line: Track, Time, Note_on_c, Channel, Note, Velocity
// format of Midinote: starttime, channel, notenumber, duration, velocity, selected
int velocity = Convert.ToInt32(ar[5]);
// velocity > 0 is a note on
if (velocity > 0)
{
n = new MidiNote(Convert.ToInt32(ar[1]), Convert.ToInt32(ar[3]), Convert.ToInt32(ar[4]), 0, velocity, false);
newNotes.Add(n);
}
else
{
// Note_on_c & velocity = 0 can be a note off in some midi files !!!!
MidiNote no;
int ticks = Convert.ToInt32(ar[1]);
int notenumber = Convert.ToInt32(ar[4]);
if (newNotes.Count > 0)
{
for (int i = 0; i < newNotes.Count; i++)
{
no = newNotes[i];
if (no.Duration == 0 && no.Number == notenumber)
{
no.Duration = Convert.ToInt32(ar[1]) - n.StartTime;
track.addNote(no, false);
newNotes.RemoveAt(i);
break;
}
}
}
}
}
private void ParseChannelMessage()
{
if (trackIndex >= trackData.Length)
{
//throw new MidiFileException("End of track unexpectedly reached.");
Console.Write("\nERROR: End of track unexpectedly reached (TrackReader.cs ParseChannelMessage)");
return;
}
cmBuilder.Command = ChannelMessage.UnpackCommand(status);
cmBuilder.MidiChannel = ChannelMessage.UnpackMidiChannel(status);
cmBuilder.Data1 = trackData[trackIndex];
// PROGRAM CHANGE
if (cmBuilder.Command == ChannelCommand.ProgramChange)
{
newTrack.ProgramChange = cmBuilder.Data1;
newTrack.MidiChannel = cmBuilder.MidiChannel;
}
trackIndex++;
if (ChannelMessage.DataBytesPerType(cmBuilder.Command) == 2)
{
if (trackIndex >= trackData.Length)
{
//throw new MidiFileException("End of track unexpectedly reached.");
Console.Write("\nERROR: End of track unexpectedly reached (TrackReader.cs ParseChannelMessage)");
return;
}
// FAB : 07/08/2014
if (trackData[trackIndex] <= 127)
{
cmBuilder.Data2 = trackData[trackIndex];
}
else
{
cmBuilder.Data2 = 127;
}
if (cmBuilder.Data1 == 0x07)
{
// Volume de la piste
newTrack.Volume = cmBuilder.Data2;
}
else if (cmBuilder.Data1 == 0x5B)
{
// Reverb 91
// FAB 2017
newTrack.Reverb = cmBuilder.Data2;
}
else if (cmBuilder.Data1 == 0x0A)
{
// pan 10
// FAB 2017
newTrack.Pan = cmBuilder.Data2;
}
// Collecte des notes
if (cmBuilder.Command == ChannelCommand.NoteOn)
{
newTrack.ContainsNotes = true;
newTrack.Visible = true;
// Data1 = Note number
// Data2 = Velocity
if (ticks >= 0 && cmBuilder.Data2 > 0)
{
// FAB :
// Add a MidiNote to this track. This is called for each NoteOn event */
newTrack.MidiChannel = cmBuilder.MidiChannel;
MidiNote note = new MidiNote(ticks, newTrack.MidiChannel, cmBuilder.Data1, 0, cmBuilder.Data2, false);
newTrack.Notes.Add(note);
}
else
{
// FAB
if (newTrack.Notes.Count > 0)
{
newTrack.MidiChannel = cmBuilder.MidiChannel;
NoteOff(newTrack.MidiChannel, cmBuilder.Data1, ticks);
}
}
}
else if (ticks >= 0 && cmBuilder.Command == ChannelCommand.NoteOff)
{
// FAB
newTrack.ContainsNotes = true;
newTrack.Visible = true;
newTrack.MidiChannel = cmBuilder.MidiChannel;
NoteOff(newTrack.MidiChannel, cmBuilder.Data1, ticks);
}
trackIndex++;
}
cmBuilder.Build();
newTrack.Insert(ticks, cmBuilder.Result);
runningStatus = status;
}
