void ProcessMidi()
{
VideoTrack destVideoTrack = new VideoTrack(0, "destVideoTrack");
AudioTrack destAudioTrack = new AudioTrack(0, "destAudioTrack");
vegas.Project.Tracks.Add(destAudioTrack);
vegas.Project.Tracks.Add(destVideoTrack);
MidiFile midi = new MidiFile(midiFilePath);
Dictionary <string, double> onNotes = new Dictionary <string, double>();
TempoEvent lastTempoEvent = new TempoEvent(0, 0);
double lastTempoEventTime = 0;
for (int i = 0; i < midi.Events.Count(); i++)
{
foreach (MidiEvent midiEvent in midi.Events[i])
{
if (midiEvent is TempoEvent)
{
lastTempoEvent = (midiEvent as TempoEvent);
lastTempoEventTime = ((double)(midiEvent.AbsoluteTime - lastTempoEvent.AbsoluteTime) / midi.DeltaTicksPerQuarterNote) * lastTempoEvent.MicrosecondsPerQuarterNote + lastTempoEventTime;
}
else if (midiEvent is NoteEvent && midiEvent.Channel == midiReadLayer)
{
NoteEvent noteEvent = midiEvent as NoteEvent;
double usTime = ((double)(noteEvent.AbsoluteTime - lastTempoEvent.AbsoluteTime) / midi.DeltaTicksPerQuarterNote) * lastTempoEvent.MicrosecondsPerQuarterNote + lastTempoEventTime;
double msTime = usTime / 1000;
int velocity = noteEvent.Velocity;
if (noteEvent.CommandCode == MidiCommandCode.NoteOn)
{
onNotes[noteEvent.NoteName] = msTime;
}
else if (noteEvent.CommandCode == MidiCommandCode.NoteOff)
{
if (onNotes.ContainsKey(noteEvent.NoteName))
{
double noteStartTime = onNotes[noteEvent.NoteName];
double noteEndTime = msTime;
int blipNum = GetBlipFromPitch(noteEvent.NoteName);
if (blipNum == -1)
{
//note not found in pitchBlipMap
continue;
}
onNotes.Remove(noteEvent.NoteName);
//Map the MIDI note to a video/audio event
VideoEvent videoEvent = selectedVideoEvent.Copy(destVideoTrack, selectedVideoEvent.Start) as VideoEvent;
AudioEvent audioEvent = selectedAudioEvent.Copy(destAudioTrack, selectedAudioEvent.Start) as AudioEvent;
Timecode clipDurationMillis = new Timecode(noteEndTime - noteStartTime + noteEndOffset);
Timecode globalClipStartLocation = new Timecode(selectedVideoEvent.Start.ToMilliseconds() + (blips[blipNum].locationInMicroseconds / 1000) + blipStartOffset);
TrackEvent tmpTrackEvent = videoEvent;
util.TrimEvent(ref tmpTrackEvent, globalClipStartLocation, clipDurationMillis);
videoEvent = tmpTrackEvent as VideoEvent;
tmpTrackEvent = audioEvent;
util.TrimEvent(ref tmpTrackEvent, globalClipStartLocation, clipDurationMillis);
audioEvent = tmpTrackEvent as AudioEvent;
audioEvent.FadeIn.Length = new Timecode(fadeInLength);
audioEvent.FadeOut.Length = new Timecode(fadeOutLength);
videoEvent.Start = new Timecode(noteStartTime);
audioEvent.Start = new Timecode(noteStartTime);
}
}
}
}
}
}
