Lines Matching refs:ac
113 autoCorr2nd_real (ACORR_COEFS *ac, /*!< Pointer to autocorrelation coeffs */
168 ac->r11r = accu1 << mScale;
169 ac->r22r = accu2 << mScale;
170 ac->r01r = accu3 << mScale;
171 ac->r12r = accu4 << mScale;
172 ac->r02r = accu5 << mScale;
174 ac->det = (fMultDiv2(ac->r11r,ac->r22r) - fMultDiv2(ac->r12r,ac->r12r)) ;
175 mScale = CountLeadingBits(fAbs(ac->det));
177 ac->det <<= mScale;
178 ac->det_scale = mScale - 1;
187 autoCorr2nd_cplx (ACORR_COEFS *ac, /*!< Pointer to autocorrelation coeffs */
256 ac->r00r = (FIXP_DBL)accu0 << mScale;
257 ac->r11r = (FIXP_DBL)accu1 << mScale;
258 ac->r22r = (FIXP_DBL)accu2 << mScale;
259 ac->r01r = (FIXP_DBL)accu3 << mScale;
260 ac->r12r = (FIXP_DBL)accu4 << mScale;
261 ac->r01i = (FIXP_DBL)accu5 << mScale;
262 ac->r12i = (FIXP_DBL)accu6 << mScale;
263 ac->r02r = (FIXP_DBL)accu7 << mScale;
264 ac->r02i = (FIXP_DBL)accu8 << mScale;
266 ac->det = ( fMultDiv2(ac->r11r,ac->r22r) >> 1 ) -
267 ( (fMultDiv2(ac->r12r,ac->r12r) + fMultDiv2(ac->r12i,ac->r12i)) >> 1 );
268 mScale = CountLeadingBits(fAbs(ac->det));
270 ac->det <<= mScale;
271 ac->det_scale = mScale - 2;
