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] >> 2;  in dct_II()
309       tmp[L - 1 - i] = pDat[2 * i + 1] >> 2;  in dct_II()
340     pDat[L - i] = -accu3;  in dct_II()
341     pDat[i] = accu4;  in dct_II()
345     pDat[M + i] = -accu3;  in dct_II()
346     pDat[M - i] = accu4;  in dct_II()
358   pDat[L - (M / 2)] = accu2;  in dct_II()
359   pDat[M / 2] = accu1;  in dct_II()
361   pDat[0] = tmp[0] + tmp[1];  in dct_II()
362   pDat[M] = fMult(tmp[0] - tmp[1],  in dct_II()
371 void dct_IV(FIXP_DBL *pDat, int L, int *pDat_e) {  in dct_IV()  argument
385     FIXP_DBL *RESTRICT pDat_0 = &pDat[0];  in dct_IV()
386     FIXP_DBL *RESTRICT pDat_1 = &pDat[L - 2];  in dct_IV()
419   fft(M, pDat, pDat_e);  in dct_IV()
422     FIXP_DBL *RESTRICT pDat_0 = &pDat[0];  in dct_IV()
423     FIXP_DBL *RESTRICT pDat_1 = &pDat[L - 2];  in dct_IV()
468 void dst_IV(FIXP_DBL *pDat, int L, int *pDat_e) {  in dst_IV()  argument
482     FIXP_DBL *RESTRICT pDat_0 = &pDat[0];  in dst_IV()
483     FIXP_DBL *RESTRICT pDat_1 = &pDat[L - 2];  in dst_IV()
516   fft(M, pDat, pDat_e);  in dst_IV()
524     pDat_0 = &pDat[0];  in dst_IV()
525     pDat_1 = &pDat[L - 2];  in dst_IV()