Osc Backend

OSC: Open Sound Control

OSC is an open protocol slated to replace MIDI.

Summary and Rationale

Add support for OSC. This should allow next generation programs and Monome controllers to work with Mixxx.

Use Cases

DJ Bill has a Monome Ohm and he wants to Mixxx!
Madjester just downloaded TouchOSC and he'd think it'd be k-rad to make his own TouchOSC mapping for Mixxx.
DJ SuperProgrammer decides he wants to hook up Mixxx with Pure Data

Design

OSC works by connecting to URLs. The standard is that conforming machines will send OSC messages to the URLs and the format that the server excepts. I base this assumption on http://www.linuxjournal.com/content/introduction-osc.

As such we could use this simple format:

/Control/[Group]/[Key]

We of course would expect the typical floating point values or integer values.

Therefore an example of many of our controls as OSC URLs:

/Channel1/play
/Channel1/rate
/Channel1/rate_temp_up

We prepend Control in the path so we can separate it from other possible entry points, ie: a direct to MIDI Script connection. This MIDI Script connection would look something like:

/Script/[Channel]/

This would link to a script instance specific to the OSC backend.