34   double factor;   /* strech factor. 1.0 means copy. */  member
65   p->factor = 1.0; /* default is no change */  in getopts()
68   if (argc > 0 && !sscanf(argv[0], "%lf", &p->factor)) {  in getopts()
90   p->shift = (p->factor <= 1.0) ?  in getopts()
105   if (p->factor < 1.0)  in getopts()
106     p->fading = 1.0 - (p->factor * p->shift);  in getopts()
133   if (p->factor == 1)  in start()
145   if (p->factor < 1.0) {  in start()
147     p->oshift = p->factor * p->ishift;  in start()
150     p->ishift = p->oshift / p->factor;  in start()
180       p->factor, p->window, p->shift, p->fading, p->state,  in start()