Cross Reference: /external/webrtc/src/modules/audio_coding/codecs/isac/main/source/fft.c

Lines Matching refs:Re
50  * int WebRtcIsac_Fftn (int ndim, const int dims[], REAL Re[], REAL Im[],
71  * tri-variate transform with Re[n1][n2][n3], Im[n1][n2][n3]
74  * WebRtcIsac_Fftn (3, dims, Re, Im, 1, scaling);
77  * int WebRtcIsac_Fftradix (REAL Re[], REAL Im[], size_t nTotal, size_t nPass,
93  * tri-variate transform with Re[n1][n2][n3], Im[n1][n2][n3]
95  * WebRtcIsac_Fftradix (Re, Im, n1*n2*n3, n1,       n1, 1, maxf, maxp);
96  * WebRtcIsac_Fftradix (Re, Im, n1*n2*n3, n2,    n1*n2, 1, maxf, maxp);
97  * WebRtcIsac_Fftradix (Re, Im, n1*n2*n3, n3, n1*n2*n3, 1, maxf, maxp);
102  * WebRtcIsac_Fftradix (Re, Im, n, n, n, 1, maxf, maxp);
135 WebRtcIsac_Fftradix (double Re[], double Im[],
160                      double Re[],
231     ret = FFTRADIX (Re, Im, nTotal, nSpan, nPass, iSign,
251       Re [i] *= scaling;
265 static int   FFTRADIX (REAL Re[],
445             ak = Re [k2];
447             Re [k2] = Re [kk] - ak;
449             Re [kk] += ak;
464                 ak = Re [kk] - Re [k2];
466                 Re [kk] += Re [k2];
468                 Re [k2] = c1 * ak - s1 * bk;
500               akp = Re [kk] + Re [k2];
501               akm = Re [kk] - Re [k2];
502               ajp = Re [k1] + Re [k3];
503               ajm = Re [k1] - Re [k3];
508               Re [kk] = akp + ajp;
525                 Re [k1] = akp;
526                 Re [k2] = ajp;
527                 Re [k3] = akm;
532                 Re [k1] = akp * c1 - bkp * s1;
533                 Re [k2] = ajp * c2 - bjp * s2;
534                 Re [k3] = akm * c3 - bkm * s3;
576                 ak = Re [kk];
578                 aj = Re [k1] + Re [k2];
580                 Re [kk] = ak + aj;
584                 aj = (Re [k1] - Re [k2]) * s60;
586                 Re [k1] = ak - bj;
587                 Re [k2] = ak + bj;
605                 akp = Re [k1] + Re [k4];
606                 akm = Re [k1] - Re [k4];
609                 ajp = Re [k2] + Re [k3];
610                 ajm = Re [k2] - Re [k3];
613                 aa = Re [kk];
615                 Re [kk] = aa + akp + ajp;
621                 Re [k1] = ak - bj;
622                 Re [k4] = ak + bj;
629                 Re [k2] = ak - bj;
630                 Re [k3] = ak + bj;
664                 ak = aa = Re [kk];
671                   Rtmp [j - 1] = Re [k1] + Re [k2];
676                   Rtmp [j - 1] = Re [k1] - Re [k2];
680                 Re [kk] = ak;
707                   Re [k1] = ak - bj;
709                   Re [k2] = ak + bj;
733                 ak = Re [kk];
734                 Re [kk] = c2 * ak - s2 * Im [kk];
785             /* swap Re [kk] <> Re [k2], Im [kk] <> Im [k2] */
786             ak = Re [kk]; Re [kk] = Re [k2]; Re [k2] = ak;
815         /* swap Re [kk] <> Re [k2], Im [kk] <> Im [k2] */
816         ak = Re [kk]; Re [kk] = Re [k2]; Re [k2] = ak;
917           Rtmp [k2 - 1] = Re [k1];
926             Re [k1] = Re [k2];
937           Re [k1] = Rtmp [k2 - 1];