public void ConvertToMidiFilesByRegionAndTrack(String outputPath)
{
if (this.Header.FormatType != TrackFormatType.MetaAndChannel)
{
throw new ApplicationException("cannot split file");
}
List <MidiFile> midiFiles = new List <MidiFile>();
foreach (TrackChunk origTrack in this.Tracks)
{
/// do conversion in this order. by doing these conversions we also remove any
/// overlapping notes.
origTrack.MakeAllNotesSameKey(60); //good for drums where we want the same note for all drum hits. this also means we will clear a lot more duplicate notes.
origTrack.MakeAllNotesSameLength(240);
origTrack.RemoveNotesThatDoNotLieCompletelyWithinARegion();
origTrack.RemoveDuplicateNotes();
origTrack.CombineOverlappingNotes();
//origTrack.ApplyScaleToNotesRandomly(5, NoteMap.C, NoteMap.CSharp, NoteMap.F, NoteMap.G, NoteMap.GSharp, NoteMap.A); //C, C#, F, G, G#, A
//origTrack.ApplyScaleToNotesInSequence(5, 0, true, NoteMap.C, NoteMap.CSharp, NoteMap.F, NoteMap.G, NoteMap.GSharp, NoteMap.A); //C, C#, F, G, G#, A
TrackChunk newTrack = null;
MidiFile newFile = null;
Region currentRegion = null;
Note lastNote = null;
foreach (var note in origTrack.Notes)
{
if (note.AveragePosition.Region != currentRegion)
{
currentRegion = note.StartPosition.Region;
newFile = new MidiFile();
//String temp = origTrack.TrackName.Text.Substring(0, 2);
//if (temp.StartsWith("0"))
// temp = temp.Substring(1);
String fileNameNoExt = Path.GetFileNameWithoutExtension(this.FileNameAndPath);
String newTrackName = "R" + note.StartPosition.Region.Ordinal.ToString().PadLeft(2, '0') + " - " + origTrack.TrackName.Text + " - " + fileNameNoExt;
newFile.FileNameAndPath = outputPath + Path.DirectorySeparatorChar + newTrackName + ".mid";
newFile.Header.NumberOfTracks = 1;
newFile.Header.FormatType = TrackFormatType.Single;
newFile.Header.PulsesPerQuarterNote = this.Header.PulsesPerQuarterNote;
midiFiles.Add(newFile);
newTrack = new TrackChunk();
newTrack.TrackName = new TrackNameEvent(newTrackName);
newTrack.TimeSignature = new TimeSignatureEvent(origTrack.TimeSignature.Numerator, origTrack.TimeSignature.Denominator, origTrack.TimeSignature.MetronomePulse, origTrack.TimeSignature.ThirtySecondNotes);
newTrack.Tempo = new TempoEvent(origTrack.Tempo.MicroSecondsPerQuarterNote, origTrack.TimeSignature.Denominator);
newTrack.CopyrightNotice = new CopyrightNoticeEvent("Joe Bacon 2013");
newTrack.DeviceName = new DeviceNameEvent("MIDI-Bacon");
newFile.Tracks.Add(newTrack);
lastNote = null;
}
uint deltaTime = 0;
if (lastNote == null)
{
deltaTime = note.StartPosition.GetAsTotalTicks() - currentRegion.Start.GetAsTotalTicks(this.Header.PulsesPerQuarterNote, origTrack.TimeSignature); //occurs on first note of measure
}
else
{
deltaTime = note.StartPosition.GetAsTotalTicks() - lastNote.EndPosition.GetAsTotalTicks();
}
ChannelMidiEvent noteOnEvent = ChannelMidiEvent.CreateNoteOnChannelMidiEvent(0, note.NoteNumber, note.Velocity, deltaTime);
newTrack.ChannelEvents.Add(noteOnEvent);
ChannelMidiEvent noteOffEvent = ChannelMidiEvent.CreateNoteOffChannelMidiEvent(0, note.NoteNumber, note.Length);
newTrack.ChannelEvents.Add(noteOffEvent);
lastNote = note;
}
}
foreach (MidiFile mf in midiFiles)
{
mf.Export(mf.FileNameAndPath);
}
}
public void ConvertToMidiFilesByRegionAndBarAndTrack(String outputPath)
{
if (this.Header.FormatType != TrackFormatType.MetaAndChannel)
{
throw new ApplicationException("cannot split file");
}
List <MidiFile> midiFiles = new List <MidiFile>();
foreach (TrackChunk origTrack in this.Tracks)
{
/// do conversion in this order. by doing these conversions we also remove any
/// overlapping notes.
origTrack.MakeAllNotesSameKey(48); //good for drums where we want the same note for all drum hits
origTrack.MakeAllNotesSameLength(10); //smallest unit that wont overlap after cleaning duplicates
//origTrack.ConstrainNotesToMeasureBoundaries(); //makes it easy to put the notes into 'measure' files
//origTrack.RemoveNotesNotInMeasure();
origTrack.RemoveNotesWhereNoteStartIsNotWithinMeasure();
//origTrack.RemoveDuplicateNotes();
origTrack.RemoveDuplicateNotes();
//uint currentMeasure = 0;
uint currentRegionMeasure = 0;
TrackChunk newTrack = null;
MidiFile newFile = null;
Region currentRegion = null;
MidiTime currentMeasureStart = null;
Note lastNote = null;
foreach (var note in origTrack.Notes)
{
if (note.StartPosition.Region == null)
{
Debug.WriteLine(origTrack.TrackName.Text + " null region @" + note.StartPosition);
//Debug.WriteLine(note.ToString());
continue;
}
if (note.StartPosition.Region != currentRegion)
{
///the first note in a new region
///
currentRegion = note.StartPosition.Region;
currentRegionMeasure = 0; //reset
}
if (currentMeasureStart == null || note.StartPosition.Measures != currentMeasureStart.Measures)
{
currentRegionMeasure++;
///the first note in a new measure
///
newFile = new MidiFile();
String temp = origTrack.TrackName.Text.Substring(0, 2);
//if (temp.StartsWith("0"))
// temp = temp.Substring(1);
String newTrackName = note.StartPosition.Region.ID + "-B" + currentRegionMeasure + "-T" + temp;
newFile.FileNameAndPath = outputPath + Path.DirectorySeparatorChar + newTrackName + ".mid";
newFile.Header.NumberOfTracks = 1;
newFile.Header.FormatType = TrackFormatType.Single;
newFile.Header.PulsesPerQuarterNote = this.Header.PulsesPerQuarterNote;
midiFiles.Add(newFile);
newTrack = new TrackChunk();
newTrack.TrackName = new TrackNameEvent(newTrackName);
newTrack.TimeSignature = new TimeSignatureEvent(origTrack.TimeSignature.Numerator, origTrack.TimeSignature.Denominator, origTrack.TimeSignature.MetronomePulse, origTrack.TimeSignature.ThirtySecondNotes);
newTrack.Tempo = new TempoEvent(origTrack.Tempo.MicroSecondsPerQuarterNote, origTrack.TimeSignature.Denominator);
newTrack.CopyrightNotice = new CopyrightNoticeEvent("Joe Bacon 2013");
newTrack.DeviceName = new DeviceNameEvent("MIDI-Bacon");
newFile.Tracks.Add(newTrack);
currentMeasureStart = new MidiTime(this, note.StartPosition.Measures, 1, 0, origTrack.TimeSignature);
lastNote = null;
}
uint deltaTime = 0;
if (lastNote == null)
{
deltaTime = note.StartPosition.GetAsTotalTicks() - currentMeasureStart.GetAsTotalTicks(); //occurs on first note of measure
}
else
{
deltaTime = note.StartPosition.GetAsTotalTicks() - lastNote.EndPosition.GetAsTotalTicks();
}
ChannelMidiEvent noteOnEvent = ChannelMidiEvent.CreateNoteOnChannelMidiEvent(0, note.NoteNumber, note.Velocity, deltaTime);
newTrack.ChannelEvents.Add(noteOnEvent);
ChannelMidiEvent noteOffEvent = ChannelMidiEvent.CreateNoteOffChannelMidiEvent(0, note.NoteNumber, note.Length);
newTrack.ChannelEvents.Add(noteOffEvent);
lastNote = note;
}
}
foreach (MidiFile mf in midiFiles)
{
mf.Export(mf.FileNameAndPath);
}
}
private static void ReadFileTest(String pathAndFilename)
{
MidiFile mf = new MidiFile();
mf.Import(pathAndFilename);
}
