Open Sound Control Library

Overview

Open Sound Control (OSC) is an open, transport-independent, message-based protocol developed for communication among computers, sound synthesizers and other multimedia devices.

This library aims to provide the OSC 1.0 protocol to any defold application.
It's a pure lua implementation, there's no platform dependent librarie.

Installation

You can use OSC in your own project by adding this project as a Defold Library dependency. Open your game.project file and in the dependencies field under project add:

https://github.com/Brun0oO/defold-osc/archive/master.zip

Or point to the ZIP file of a specific OSC release.

Basic usage

Receiving of messages

Create a script with the following code, add it to a game object:

local osc = require('osc.init')
local plugin = require('osc.plugins.udp-socket-non-blocking')

function init(self)
	-- Initialize the osc mechanism
	local udp = plugin.new {
		recvAddr = 'localhost',
		recvPort = 9000,
		ignore_late = true, -- ignore late bundles
	}
	self.osc = osc.new {plugin = udp}
	
	-- Bind the receipt of a message to a dedicated callback
	self.osc:add_handler('/foo/bar', function(data)
		local msg = data.message
		print('Received OscMessage  => address: ' .. msg.address, 'timestamp: ' .. data.timestamp)
		for index, argument in ipairs(msg) do
			print('  arg index: ' .. index, ' value: ' .. argument)
		end
	end)
	
	self.osc:open()
end

-- Very important call to handle sockect reading and the receipt of messages !!
function update(self, dt)
	self.osc:update() 
end

Have a look to the example folder !o)

Sending of messages

Create a script with the following code, add it to a game object:

local osc = require('osc.init')
local plugin = require('osc.plugins.udp-socket-non-blocking')

function init(self)
    -- Initialize the osc mechanism
	local udp = plugin.new {
		recvAddr = 'localhost',
		recvPort = 9000,
		ignore_late = true, -- ignore late bundles
	}
	self.osc = osc.new {plugin = udp}
	
	-- Create a message
	local message = osc.new_message {
	  address = '/foo/bar',
	  types = 'ifsb',
	  123, 1.234, 'hi', 'blobdata'
	}

	-- Send it over UDP
	self.osc:send(message)
end

Contributing

There are probably bugs. Please report them!
Did you improve some of the code? Have a look to CONTRIBUTE.md for details about how to contribute to this project.

Credits

• OSC 1.0 implementation for lua and luajit from davidgranstrom/losc