175 void dct_III(FIXP_DBL *pDat, /*!< pointer to input/output */  in dct_III()  argument
198     cplxMultDiv2(&accu2, &accu1, pDat[L - i], pDat[i], sin_twiddle[i * inc]);  in dct_III()
199     cplxMultDiv2(&accu4, &accu3, pDat[M + i], pDat[M - i],  in dct_III()
231   xr = fMultDiv2(pDat[M], sin_twiddle[M * inc].v.re); /* cos((PI/(2*L))*M); */  in dct_III()
232   tmp[0] = ((pDat[0] >> 1) + xr) >> 1;  in dct_III()
233   tmp[1] = ((pDat[0] >> 1) - xr) >> 1;  in dct_III()
235   cplxMultDiv2(&accu2, &accu1, pDat[L - (M / 2)], pDat[M / 2],  in dct_III()
251     *pDat++ = tmp1;  in dct_III()
252     *pDat++ = tmp3;  in dct_III()
253     *pDat++ = tmp2;  in dct_III()
254     *pDat++ = tmp4;  in dct_III()
260 void dst_III(FIXP_DBL *pDat, /*!< pointer to input/output */  in dst_III()  argument
273     t = pDat[i];  in dst_III()
274     pDat[i] = pDat[L - 1 - i];  in dst_III()
275     pDat[L - 1 - i] = t;  in dst_III()
279   dct_III(pDat, tmp, L, pDat_e);  in dst_III()
282   for (i = 1; i < L; i += 2) pDat[i] = -pDat[i];  in dst_III()
289     FIXP_DBL *pDat, /*!< pointer to input/output */  in dct_II()  argument
308       tmp[i] = pDat[2 * i] >> 1; /* dit_fft expects 1 bit scaled input values */  in dct_II()
310           pDat[2 * i + 1] >> 1; /* dit_fft expects 1 bit scaled input values */  in dct_II()
342     pDat[L - i] = accu4;  in dct_II()
343     pDat[i] = accu3;  in dct_II()
347     pDat[M + i] = accu4;  in dct_II()
348     pDat[M - i] = accu3;  in dct_II()
360   pDat[L - (M / 2)] = accu2;  in dct_II()
361   pDat[M / 2] = accu1;  in dct_II()
363   pDat[0] = (tmp[0] >> 1) + (tmp[1] >> 1);  in dct_II()
364   pDat[M] = fMult(((tmp[0] >> 1) - (tmp[1] >> 1)),  in dct_II()
373 void dct_IV(FIXP_DBL *pDat, int L, int *pDat_e) {  in dct_IV()  argument
387     FIXP_DBL *RESTRICT pDat_0 = &pDat[0];  in dct_IV()
388     FIXP_DBL *RESTRICT pDat_1 = &pDat[L - 2];  in dct_IV()
421   fft(M, pDat, pDat_e);  in dct_IV()
424     FIXP_DBL *RESTRICT pDat_0 = &pDat[0];  in dct_IV()
425     FIXP_DBL *RESTRICT pDat_1 = &pDat[L - 2];  in dct_IV()
470 void dst_IV(FIXP_DBL *pDat, int L, int *pDat_e) {  in dst_IV()  argument
484     FIXP_DBL *RESTRICT pDat_0 = &pDat[0];  in dst_IV()
485     FIXP_DBL *RESTRICT pDat_1 = &pDat[L - 2];  in dst_IV()
518   fft(M, pDat, pDat_e);  in dst_IV()
526     pDat_0 = &pDat[0];  in dst_IV()
527     pDat_1 = &pDat[L - 2];  in dst_IV()