onDataReceived method
Implementation
@override
void onDataReceived(pigeon.MidiPacket packet) {
final sourceDevice = packet.device ?? pigeon.MidiHostDevice();
final midiDevice = _fromHostDevice(sourceDevice);
_rxStreamController.add(
MidiPacket(
packet.data ?? Uint8List(0),
packet.timestamp ?? 0,
midiDevice,
),
);
}