AVRCP: player object path

Hello, I'm trying to implement some function of AVRCP protocol. From here:

http://git.kernel.org/cgit/bluetooth/bluez.git/tree/doc/media-api.txt

I don't understand how to retreive the |object path| of my player:

   Object path [variable
   prefix]/{hci0,hci1,...}/dev_XX_XX_XX_XX_XX_XX/playerX

I'm not sure if it is returned from some DBus methods or I have to manually build it using the bluetooth address and the local device.

Thanks!
Marco