73 lines
2.2 KiB
Python
73 lines
2.2 KiB
Python
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import rtmidi
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import time
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class HostsSync:
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def __init__(self):
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self.host_id = None
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self.available_ports = None
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self.midi_out = rtmidi.MidiOut()
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self.opened_ports = []
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def midi_input_callback(self, event, data_pack):
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message, deltatime = event
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status = message[0]
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host_id, midi_in = data_pack
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# Check if the status byte is 0xFA (250 in decimal) or 0xFF (255 in decimal),
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# which indicate MIDI Start and Stop messages respectively
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if status in [250, 255]:
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print(f"MIDI message received from device {host_id}: {message}")
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self.host_id = host_id
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self.midi_output_called(message)
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def midi_output_called(self, message):
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if self.host_id is None:
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return
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for i, port in enumerate(self.available_ports):
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if i != self.host_id:
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if i not in self.opened_ports:
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self.midi_out.open_port(i)
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self.opened_ports.append(i)
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print(f"Opened MIDI output port: {self.available_ports[i]}")
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self.midi_out.send_message(message)
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def main(self):
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midi_ins = []
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self.available_ports = rtmidi.MidiIn().get_ports()
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if not self.available_ports:
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print("No MIDI input ports available.")
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return
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print("Available MIDI input ports:")
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for i, port in enumerate(self.available_ports):
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print(f"{i}: {port}")
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try:
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for i, port in enumerate(self.available_ports):
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midi_in = rtmidi.MidiIn()
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midi_in.open_port(i)
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midi_in.set_callback(self.midi_input_callback, (i, midi_in))
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midi_ins.append(midi_in)
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print(f"Listening for MIDI messages on input port: {port}")
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# Keep the script running to listen for MIDI messages
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while True:
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time.sleep(1)
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except KeyboardInterrupt:
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print("\nExiting...")
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finally:
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for midi_in in midi_ins:
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midi_in.close_port()
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self.midi_out.close_port()
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if __name__ == "__main__":
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HostsSync().main()
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