int _mmcamcorder_video_average_framerate(MMHandleType handle);
/* sound focus related function */
-void __mmcamcorder_force_stop(mmf_camcorder_t *hcamcorder);
+void __mmcamcorder_force_stop(mmf_camcorder_t *hcamcorder, int state_change_by_system);
void _mmcamcorder_sound_focus_cb(int id, mm_sound_focus_type_e focus_type,
mm_sound_focus_state_e focus_state, const char *reason_for_change,
int option, const char *additional_info, void *user_data);