int _set_session_mode(_session_mode_e mode);
-int _make_pa_connection_and_register_focus(sound_stream_info_s *stream_h, sound_stream_focus_state_changed_cb callback, void *user_data);
+int _make_pa_connection_and_register_focus(sound_stream_info_s *stream_h, bool is_for_session, sound_stream_focus_state_changed_cb callback, void *user_data);
int _destroy_pa_connection_and_unregister_focus(sound_stream_info_s *stream_h);