public static Message getChannelMessage(int msgtype, int channel, int b1, int b2)
{
Message msg = null;
switch (msgtype)
{
case 0x8:
msg = new NoteOffMessage(channel, b1, b2);
break;
case 0x9:
msg = new NoteOnMessage(channel, b1, b2);
break;
case 0xa:
msg = new AftertouchMessage(channel, b1, b2);
break;
case 0xb:
msg = new ControllerMessage(channel, b1, b2);
break;
case 0xc:
msg = new PatchChangeMessage(channel, b1);
break;
case 0xd:
msg = new ChannelPressureMessage(channel, b1);
break;
case 0xe:
int wheelamt = ((b1 % 128) * 128) + (b2 % 128);
msg = new PitchWheelMessage(channel, wheelamt);
break;
default:
break;
}
//convert noteon msg w/ vel = 0 to noteoff msg
if (msg is NoteOnMessage)
{
NoteOnMessage noteOn = (NoteOnMessage)msg;
if (noteOn.velocity == 0)
{
NoteOffMessage noteOff = new NoteOffMessage(noteOn.channel, noteOn.noteNumber, 0);
msg = noteOff;
}
}
return(msg);
}
public static void finalizeTrack(Track track)
{
bool haveName = false;
bool seenNoteOn = false;
for (int i = 0; i < track.events.Count; i++)
{
if (!haveName && (track.events[i] is TrackNameEvent))
{
track.setName(((TrackNameEvent)track.events[i]).trackName);
haveName = true;
}
//scan events for these values only before the first note on event
if ((!seenNoteOn) && (track.events[i] is MessageEvent))
{
Message msg = ((MessageEvent)track.events[i]).msg;
if (msg is NoteOnMessage)
{
track.setOutputChannel(((NoteOnMessage)msg).channel);
seenNoteOn = true;
}
if (msg is PatchChangeMessage)
{
track.setPatchNum(((PatchChangeMessage)msg).patchNumber);
}
if (msg is ControllerMessage)
{
ControllerMessage ctrlMsg = (ControllerMessage)msg;
if (ctrlMsg.ctrlNumber == 7)
{
track.setVolume(ctrlMsg.ctrlValue);
}
if (ctrlMsg.ctrlNumber == 10)
{
track.setPan(ctrlMsg.ctrlValue);
}
}
}
if (haveName && seenNoteOn)
{
break;
}
}
}
