Comment 1 for bug 624958

Details on the "Sound Menu" spec can be found at: https://wiki.ubuntu.com/SoundMenu (Assuming you can call it a spec).

Details on exactly how to register a player (in this case Pithos) can be found specifically at: https://wiki.ubuntu.com/SoundMenu#Registration%20process. These process seems to have code available in both Python and C, so should be easily compatible with Pithos.

I may not be familiar enough with the Pithos code to make this happen, but I can do someone's leg work for them.