DMX OSC Server

DMX OSC Server is a python lib to make it easier to create OSC Servers for the DMX Protocol.

It allows you to register fixtures are the wanted universe, starting address and channels. You will also be able to add an handler which will be called when a message is received for that fixture.

Originally designed for QLC+, but it should work with any program that sends to the /<universe>/dmx/<addr> path

It can receive single argument messages, like /<universe>/dmx/<addr> <value> (so you can set the channels to 3 and do channel 1 for red, 2 for green and 3 for blue)

It can also receive an array argument, like /<universe>/dmx/<addr> [<R>, <G>, <B>]

And it can also receive 3 arguments, like /<universe>/dmx/<addr> <R> <G> <B>

Installation

pip install DmxOscServer

Get Started

To create a simple DMX OSC Server that will listen on 0.0.0.0:9000 you can use this code:

from DmxOscServer import DmxOscServer

server = DmxOscServer()

# Define a 3 channel Fixture at address 0 at universe 0 which will execute my_rgb_handler when called
@server.define_fixture(0, 0, 3)
def my_rgb_handler(fixture, address, *args):
    print ("{} got {}".format(address, args))

server.run()

To make the define more readable, you can use the argument names

# Define a 3 channel Fixture at address 0 at universe 0 which will execute my_rgb_handler when called
@server.define_fixture(universe=0, starting_addr=0, channels=3)
def my_rgb_handler(fixture, address, *args):
    print ("{} has been set to {}".format(address, args))

To change the IP and/or port, you can specify that at the .run() method

server.run("10.10.123.5", 1234) # Will listen on 10.10.123.5:1234

If your addresses receive arrays or multiple args, add the channel_as_array=True argument

# Define a 3 channel array based Fixture at address 0 at universe 0 which will execute my_rgb_handler when called
@server.define_fixture(universe=0, starting_addr=0, channels=3, channel_as_array=True)
def my_rgb_handler(fixture, address, *args):
    print ("{} has been set to {}".format(address, args))

It is also possible to use the Fixture class and the add_fixture method

from DmxOscServer import DmxOscServer, Fixture

def my_rgb_handler(fixture, address, *args):
    print ("{} has been set to {}".format(address, args))

server = DmxOscServer()
server.add_fixture(Fixture(0, 0, 3, my_rgb_handler)) # Register a 3 channel not array based Fixture at address 0 at universe 0
server.add_fixture(Fixture(0, 3, 3, my_rgb_handler, True)) # Register a 3 channel array based Fixture at address 0 at universe 0

And for the add_fixture method, you can also add multiple fixtures at once using:

from DmxOscServer import DmxOscServer, Fixture
server = DmxOscServer()
server.add_fixtures(
    Fixture(0, 0, 3, my_rgb_handler), # Register a 3 channel not array based Fixture at address 0 of universe 0
    Fixture(0, 3, 3, my_rgb_handler, True), # Register a 3 channel array based Fixture at address 3 of universe 0
)

You can use the fixture.values property to see all the current values

@server.define_fixture(0, 0, 3)
def my_rgb_handler(fixture, address, *args):
    print (fixture.values)

The handler

The handler receives a call when a message is received for that fixture Arguments: (fixture, address, *args)

• fixture is the fixture, so you have a reference
• address is the message address (it starts at the starting_address, so use address - fixture.starting_addr if you want to have the internal address)
• *args are the args of the message. It is almost always 1 int going from 0 to 1, so you can just use args[0] in your code and multiply it by your max value

The handler should never receive an address out of its address range, if the fixture is called correctly

More Documentation

More Documentation can be found at https://dmxoscserver.readthedocs.io/en/latest/