public bool ConvertFile(string sourceFile, int fileType, int TrackNum, ICollection<MidiNotes> NoteCollection)
{
try
{
//MidiFile midiFile = new MidiFile(sourceFile);
MidiFile midiFile = new MidiFile(sourceFile);
if (fileType == -1)
{
fileType = midiFile.FileFormat;
}
EventRuleArgs eventRuleArgs = new EventRuleArgs(Path.GetFileNameWithoutExtension(sourceFile));
MidiEventCollection outputFileEvents = new MidiEventCollection(fileType, midiFile.DeltaTicksPerQuarterNote);
bool hasNotes = false;
int track = TrackNum;
; IList<MidiEvent> trackEvents = midiFile.Events[track]; // Notes the use of the Track reference, if invalid track is referenced then causes big issues
IList<MidiEvent> outputEvents;
if (fileType == 1 || track == 0)
{
outputEvents = new List<MidiEvent>();
}
else
{
outputEvents = outputFileEvents[0];
}
foreach (MidiEvent midiEvent in InsertEvents)
{
outputEvents.Add(midiEvent);
}
foreach (MidiEvent midiEvent in trackEvents)
{
outputEvents.Add(midiEvent);
NoteOnEvent noteOnEvent = midiEvent as NoteOnEvent;
if (noteOnEvent != null)
{
// Add to the midi collection
if (!MidiEvent.IsNoteOff(noteOnEvent))
{
MidiNotes tempnote = new MidiNotes(noteOnEvent);
NoteCollection.Add(tempnote);
};
//System.Diagnostics.Debug.Assert(noteOnEvent.OffEvent != null);
hasNotes = true;
outputEvents.Add(noteOnEvent.OffEvent);
}
//}
}
// Get the tempo events
foreach (MidiEvent midiEvent in trackEvents)
{
//get the tempo and drop out of that track
if (midiEvent is TempoEvent)
{
//tempo in milliseconds
tempo = (midiEvent as TempoEvent).MicrosecondsPerQuarterNote / 1000;
break;
}
//get the tempo and drop out of that track
if (midiEvent is TimeSignatureEvent)
{
//Time sig
timesig1 = (midiEvent as TimeSignatureEvent).Numerator;
timesig2 = (midiEvent as TimeSignatureEvent).Denominator;
break;
}
}
if (fileType == 1 || track == 0)
{
outputFileEvents.AddTrack(outputEvents);
}
//}
if (hasNotes)
{
//MidiFile.Export(destFile, outputFileEvents);
}
return hasNotes;
}
catch
{
MessageBox.Show("Invalid File or track number");
return false;
}
}
public bool Process(MidiEvent inEvent, EventRuleArgs args)
{
NoteOnEvent noteEvent = inEvent as NoteOnEvent;
// filter note offs - they will be added by their note-on
if (MidiEvent.IsNoteOff(inEvent))
{
return false;
}
// if it is a note event, special processing
if (noteEvent != null)
{
foreach (IEventRule rule in noteRules)
{
if (rule.Apply(inEvent, args))
return true;
}
// an unmatched note event
// TODO: configure to have an option to retain these
return false;
}
// now see if we need to exclude this event
foreach (IEventRule rule in excludeRules)
{
if (rule.Apply(inEvent, args))
{
return false;
}
}
bool updatedEvent = false;
foreach (IEventRule rule in eventRules)
{
updatedEvent |= rule.Apply(inEvent, args);
}
return true; // updatedEvent;
}
