// Run runs the command from command-line arguments.
func (list *ListMIDI) Run(args []string) error {
fmt.Println(h1)
fmt.Println(h2)
for i := 0; i < portmidi.CountDevices(); i++ {
info := portmidi.GetDeviceInfo(portmidi.DeviceId(i))
fmt.Printf(row, i, info.Interface, info.Name, info.IsInputAvailable, info.IsOutputAvailable)
}
return nil
}
// ListenMIDI listens for MIDI events.
func (poly *Poly) ListenMIDI() error {
did := portmidi.DeviceId(poly.midi)
midiInput, err := portmidi.NewInputStream(did, midiBufferSize)
if err != nil {
return err
}
for events, err := midiInput.Read(1024); err == nil; events, err = midiInput.Read(1024) {
for _, event := range events {
if err := poly.HandleMIDI(event); err != nil {
_ = midiInput.Close() // Best effort.
return err
}
}
}
return midiInput.Close()
}