120   const FIXP_DBL *pReBuf;  in autoCorr2nd_real()  local
130   pReBuf = realBuf - 2;  in autoCorr2nd_real()
132       ((fMultDiv2(pReBuf[0], pReBuf[2]) + fMultDiv2(pReBuf[1], pReBuf[3])) >>  in autoCorr2nd_real()
134   pReBuf++;  in autoCorr2nd_real()
137   accu1 = fPow2Div2(pReBuf[0]) >> len_scale;  in autoCorr2nd_real()
138   accu3 = fMultDiv2(pReBuf[0], pReBuf[1]) >> len_scale;  in autoCorr2nd_real()
139   pReBuf++;  in autoCorr2nd_real()
141   for (j = (len - 2) >> 1; j != 0; j--, pReBuf += 2) {  in autoCorr2nd_real()
142     accu1 += ((fPow2Div2(pReBuf[0]) + fPow2Div2(pReBuf[1])) >> len_scale);  in autoCorr2nd_real()
145         ((fMultDiv2(pReBuf[0], pReBuf[1]) + fMultDiv2(pReBuf[1], pReBuf[2])) >>  in autoCorr2nd_real()
149         ((fMultDiv2(pReBuf[0], pReBuf[2]) + fMultDiv2(pReBuf[1], pReBuf[3])) >>  in autoCorr2nd_real()
196   const FIXP_DBL *pReBuf, *pImBuf;  in autoCorr2nd_cplx()  local
211   pReBuf = realBuf - 2, pImBuf = imagBuf - 2;  in autoCorr2nd_cplx()
213       ((fMultDiv2(pReBuf[2], pReBuf[0]) + fMultDiv2(pImBuf[2], pImBuf[0])) >>  in autoCorr2nd_cplx()
216       ((fMultDiv2(pImBuf[2], pReBuf[0]) - fMultDiv2(pReBuf[2], pImBuf[0])) >>  in autoCorr2nd_cplx()
219   pReBuf = realBuf - 1, pImBuf = imagBuf - 1;  in autoCorr2nd_cplx()
220   for (j = (len - 1); j != 0; j--, pReBuf++, pImBuf++) {  in autoCorr2nd_cplx()
221     accu1 += ((fPow2Div2(pReBuf[0]) + fPow2Div2(pImBuf[0])) >> len_scale);  in autoCorr2nd_cplx()
223         ((fMultDiv2(pReBuf[0], pReBuf[1]) + fMultDiv2(pImBuf[0], pImBuf[1])) >>  in autoCorr2nd_cplx()
226         ((fMultDiv2(pImBuf[1], pReBuf[0]) - fMultDiv2(pReBuf[1], pImBuf[0])) >>  in autoCorr2nd_cplx()
229         ((fMultDiv2(pReBuf[2], pReBuf[0]) + fMultDiv2(pImBuf[2], pImBuf[0])) >>  in autoCorr2nd_cplx()
232         ((fMultDiv2(pImBuf[2], pReBuf[0]) - fMultDiv2(pReBuf[2], pImBuf[0])) >>  in autoCorr2nd_cplx()