Added _D(()) macro, decoder_private field, and changed read() method from  returning an (int) to returning a (Uint32).
Added _D(()) macro, decoder_private field, and changed read() method from
 returning an (int) to returning a (Uint32).

nemomobile-packages/libsdl-sound,nemomobile-packages/libsdl-sound,nemomobile-packages/libsdl-sound