processing

Easy OSC

Processing

This piece of code is written in Processing (Java), you could find into oscUDP and oscWS folders all the code needed. To run this code install Processing, then install dependencies oscP5, udp, controlp5 and webSockets (you'll find these dependencies into the libraries folder).

oscP5 Library, udp Library, controlp5 Library and webSockets Library may be found in the libraries directory. Drop the Drop the udp directory, oscP5 directory, webSockets directory and controlP5 directory into $HOME/Documents/Processing/libraries. Then restart processing.

oscUDP

Initialization

import oscP5.*;
import netP5.*;

final int UDP_IN_PORT = 12000;
final int UDP_OUT_PORT = 12001;
final String IP = "127.0.0.1";

OscP5 oscP5;
NetAddress myRemoteLocation;

void setup() {
  oscP5 = new OscP5(this, UDP_IN_PORT);
  myRemoteLocation = new NetAddress(IP, UDP_OUT_PORT);
}

Read

void draw(){   
}

void oscEvent(OscMessage theOscMessage) {
  /* print the address pattern and the typetag of the received OscMessage */
  print("### received an osc message.");
  print(" addrpattern: "+theOscMessage.addrPattern());
  println(" typetag: "+theOscMessage.typetag());
  // theOscMessage.get(0).floatValue() // to get first param as float
  // theOscMessage.get(1).intValue() // to get second param as integer
}

Write

void draw(){
  OscMessage myMessage = new OscMessage("/test");
  myMessage.add(123.0); /* add an float to the osc message */
  myMessage.add(987);   /* add an int to the osc message */
  oscP5.send(myMessage, myRemoteLocation); 
}

oscWS

Initialization

By default oscP5 will run with UDP but we can inject WebSocket message in this object for interpretation. As wll every UDP setup won't be used, neither they are needed.

import java.net.DatagramPacket;
import websockets.*;
import oscP5.*;
import netP5.*;

final int UDP_IN_PORT = 12000; // unused
final int UDP_OUT_PORT = 12001;// unused
final int WS_PORT = 6969; // WebSocket port
final String IP = "127.0.0.1";

OscP5 oscP5;
NetAddress myRemoteLocation;
WebsocketServer ws;

void setup() {
  oscP5 = new OscP5(this, UDP_IN_PORT);
  myRemoteLocation = new NetAddress(IP, UDP_OUT_PORT);
  ws= new WebsocketServer(this, WS_PORT, "/");
}

Read

void draw(){   
}

void webSocketServerEvent(byte[] data, int offset, int length) {
  DatagramPacket myPacket = new DatagramPacket(data, length, myRemoteLocation.inetaddress(), WS_PORT);
  oscP5.process(myPacket, WS_PORT);
}

void oscEvent(OscMessage theOscMessage) {
  /* print the address pattern and the typetag of the received OscMessage */
  print("### received an osc message.");
  print(" addrpattern: "+theOscMessage.addrPattern());
  println(" typetag: "+theOscMessage.typetag());
  // theOscMessage.get(0).floatValue() // to get first param as float
  // theOscMessage.get(1).intValue() // to get second param as integer
}

Write

void draw(){
  OscMessage myMessage = new OscMessage("/test");
  myMessage.add(123); /* add an int to the osc message */ 
  ws.sendMessage(myMessage.getBytes());
}