e_sgn             201 libavutil/eval.c         case e_sgn:    return e->value * FFDIFFSIGN(eval_expr(p, e->param[0]), 0);
e_sgn             475 libavutil/eval.c     else if (strmatch(next, "sgn"   )) d->type = e_sgn;
e_sgn             665 libavutil/eval.c         case e_sgn: