Hermes/AutoSyncHost
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bklronin 2024-06-26 15:05:42 +02:00
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72
main_direct.py
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import rtmidi
import time
class HostsSync:
def __init__(self):
self.host_id = None
self.available_ports = None
self.midi_out = rtmidi.MidiOut()
self.opened_ports = []
def midi_input_callback(self, event, data_pack):
message, deltatime = event
status = message[0]
host_id, midi_in = data_pack
# Check if the status byte is 0xFA (250 in decimal) or 0xFF (255 in decimal),
# which indicate MIDI Start and Stop messages respectively
if status in [250, 255]:
print(f"MIDI message received from device {host_id}: {message}")
self.host_id = host_id
self.midi_output_called(message)
def midi_output_called(self, message):
if self.host_id is None:
return
for i, port in enumerate(self.available_ports):
if i != self.host_id:
if i not in self.opened_ports:
self.midi_out.open_port(i)
self.opened_ports.append(i)
print(f"Opened MIDI output port: {self.available_ports[i]}")
self.midi_out.send_message(message)
def main(self):
midi_ins = []
self.available_ports = rtmidi.MidiIn().get_ports()
if not self.available_ports:
print("No MIDI input ports available.")
return
print("Available MIDI input ports:")
for i, port in enumerate(self.available_ports):
print(f"{i}: {port}")
try:
for i, port in enumerate(self.available_ports):
midi_in = rtmidi.MidiIn()
midi_in.open_port(i)
midi_in.set_callback(self.midi_input_callback, (i, midi_in))
midi_ins.append(midi_in)
print(f"Listening for MIDI messages on input port: {port}")
# Keep the script running to listen for MIDI messages
while True:
time.sleep(1)
except KeyboardInterrupt:
print("\nExiting...")
finally:
for midi_in in midi_ins:
midi_in.close_port()
self.midi_out.close_port()
if __name__ == "__main__":
HostsSync().main()

9
readme.md
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# AutoSyncHost
## Description
### An automatic midi host application that send midi sync commands to other MIDI devices connected via USB.
### An automatic midi host application that sends midi sync commands to other MIDI devices connected via USB.
This python scrtipt is intended to run headless on a raspbery pi but can run on any other python able device as well.
This python script is intended to run headless on a raspberry pi but can run on any other python able device as well.
The output is filtered so the host deosnt receive sync signals from the members and thus not causing midi loops.
The output is filtered so the host doesn´t receive sync signals from the members and thus not causing midi loops.
*Notes,CCs and other messages are not handled currently.*
## Installation
- pull from repository with `git clone https://git.raise-uav.com/Hermes/AutoSyncHost.git`
- `pip install mido`
- `pip install python-rtmidi`