if(!avifileinfo) return;
static void updateAll(void){                        if (!video_body->updateVideoInfo (avifileinfo))                        {                                GUI_Error_HIG ("OOPS","Something bad happened when executing that script");                        }                        frameStart=0;                        if(avifileinfo->nb_frames)                                frameEnd=avifileinfo->nb_frames-1;                        else                                frameEnd=0;}