-static void ProcessEQ( float *, float *, float *, unsigned, unsigned, float *, unsigned );
-static void DoWork( aout_instance_t *, aout_filter_t *,
- aout_buffer_t *, aout_buffer_t * );
+static void ProcessEQ( const float *, float *, float *, unsigned, unsigned,
+ const float *, unsigned );
+static block_t *DoWork( filter_t *, block_t * );