extern int otb_6s_iapialbe_(
  otb_6s_integer *pild,
  otb_6s_doublereal *pxlt,
  otb_6s_doublereal *prl,
  otb_6s_doublereal *ptl,
  otb_6s_doublereal *prs,
  otb_6s_integer *pihs,
  otb_6s_doublereal *pc,
  otb_6s_doublereal *brdfalb
  );
