MIDI and RtMidi driver fixes

include/midi.hpp

@@ -102,6 +102,7 @@ struct MidiIO {
 
 
 struct MidiInput : MidiIO {
+	MidiInput();
 	~MidiInput();
 
 	std::vector<int> getDeviceIds() override;

src/midi.cpp

@@ -118,6 +118,12 @@ void MidiIO::fromJson(json_t *rootJ) {
 // MidiInput
 ////////////////////
 
+MidiInput::MidiInput() {
+	if (driverIds.size() >= 1) {
+		setDriverId(driverIds[0]);
+	}
+}
+
 MidiInput::~MidiInput() {
 	setDriverId(-1);
 }
@@ -138,8 +144,8 @@ std::string MidiInput::getDeviceName(int deviceId) {
 
 void MidiInput::setDeviceId(int deviceId) {
 	// Destroy device
-	if (driver && deviceId >= 0) {
-		driver->unsubscribeInputDevice(deviceId, this);
+	if (driver && this->deviceId >= 0) {
+		driver->unsubscribeInputDevice(this->deviceId, this);
 	}
 	this->deviceId = -1;
 

src/rtmidi.cpp

@@ -27,6 +27,7 @@ RtMidiInputDevice::RtMidiInputDevice(int driverId, int deviceId) {
 	assert(rtMidiIn);
 	rtMidiIn->ignoreTypes(false, false, false);
 	rtMidiIn->setCallback(midiInputCallback, this);
+	rtMidiIn->openPort(deviceId, "VCV Rack input");
 }
 
 RtMidiInputDevice::~RtMidiInputDevice() {