169   WORD32 fac_length = (usac_data->len_subfrm) / 2;  in ixheaacd_tcx_mdct()  local
179     fac_length_prev = fac_length;  in ixheaacd_tcx_mdct()
181   if (fac_length == 96)  in ixheaacd_tcx_mdct()
198   xn = xn_buf + fac_length;  in ixheaacd_tcx_mdct()
203         st->exc_prev[i + fac_length - fac_length_prev + 1] *=  in ixheaacd_tcx_mdct()
207     for (i = 0; i < fac_length - fac_length_prev; i++) {  in ixheaacd_tcx_mdct()
208       st->exc_prev[i + fac_length + fac_length_prev + 1] = 0.0f;  in ixheaacd_tcx_mdct()
260   err = ixheaacd_acelp_mdct_main(usac_data, int_x, int_xn1, (2 * fac_length),  in ixheaacd_tcx_mdct()
261                                  lg - (2 * fac_length), &preshift);  in ixheaacd_tcx_mdct()
264   ixheaacd_fix2float(int_xn1, xn_buf, (lg + (2 * fac_length)), &shiftp,  in ixheaacd_tcx_mdct()
267   ixheaacd_vec_cnst_mul((2.0f / lg), xn_buf, xn_buf, lg + (2 * fac_length));  in ixheaacd_tcx_mdct()
270       gain_tcx * 0.5f * (FLOAT32)sqrt(((FLOAT32)fac_length) / (FLOAT32)lg);  in ixheaacd_tcx_mdct()
272   for (i = 0; i < fac_length / 4; i++)  in ixheaacd_tcx_mdct()
273     st->fac_fd_data[i] = alfd_gains[i * lg / (8 * fac_length)];  in ixheaacd_tcx_mdct()
284     for (i = 0; i < fac_length / 2; i++) {  in ixheaacd_tcx_mdct()
287       x[fac_length / 2 + i] =  in ixheaacd_tcx_mdct()
290               ->fac[frame_index * FAC_LENGTH + fac_length - 2 * i - 1];  in ixheaacd_tcx_mdct()
293     for (i = 0; i < fac_length / 8; i++) {  in ixheaacd_tcx_mdct()
295       x[fac_length - i - 1] *= st->fac_fd_data[2 * i + 1];  in ixheaacd_tcx_mdct()
299     shiftp = ixheaacd_float2fix(x, int_x, fac_length);  in ixheaacd_tcx_mdct()
302         ixheaacd_acelp_mdct(int_x, int_xn1, &preshift, fac_length, ptr_scratch);  in ixheaacd_tcx_mdct()
305     ixheaacd_fix2float(int_xn1, xn1, fac_length, &shiftp, &preshift);  in ixheaacd_tcx_mdct()
307     ixheaacd_vec_cnst_mul((2.0f / (FLOAT32)fac_length), xn1, xn1, fac_length);  in ixheaacd_tcx_mdct()
309     memset(xn1 + fac_length, 0, fac_length * sizeof(FLOAT32));  in ixheaacd_tcx_mdct()
312     ixheaacd_synthesis_tool_float(i_ap, xn1, xn1, 2 * fac_length,  in ixheaacd_tcx_mdct()
313                                   xn1 + fac_length);  in ixheaacd_tcx_mdct()
315     for (i = 0; i < fac_length; i++) {  in ixheaacd_tcx_mdct()
316       temp = st->exc_prev[1 + fac_length + i] * facwindow[fac_length + i] +  in ixheaacd_tcx_mdct()
317              st->exc_prev[fac_length - i] * facwindow[fac_length - 1 - i];  in ixheaacd_tcx_mdct()
322   for (i = 0; i < lg + (2 * fac_length); i++) xn_buf[i] *= gain_tcx;  in ixheaacd_tcx_mdct()
325     xn_buf[i + fac_length - fac_length_prev] *= sine_window_prev[i];  in ixheaacd_tcx_mdct()
327   for (i = 0; i < fac_length - fac_length_prev; i++) xn_buf[i] = 0.0f;  in ixheaacd_tcx_mdct()
330     for (i = fac_length - fac_length_prev; i < (fac_length + fac_length_prev);  in ixheaacd_tcx_mdct()
334     for (i = fac_length - fac_length_prev; i < (fac_length + fac_length_prev);  in ixheaacd_tcx_mdct()
336       xn_buf[i + fac_length] += xn1[i];  in ixheaacd_tcx_mdct()
339   ixheaacd_mem_cpy(xn_buf + lg - 1, st->exc_prev, 1 + (2 * fac_length));  in ixheaacd_tcx_mdct()
341   for (i = 0; i < (2 * fac_length); i++) {  in ixheaacd_tcx_mdct()
342     xn_buf[i + lg] *= sine_window[(2 * fac_length) - 1 - i];  in ixheaacd_tcx_mdct()
346     ixheaacd_mem_cpy(xn_buf + fac_length - fac_length_prev,  in ixheaacd_tcx_mdct()
349     for (i = 0; i < ORDER + fac_length; i++)  in ixheaacd_tcx_mdct()
350       buf[i] = synth[i - ORDER - fac_length] -  in ixheaacd_tcx_mdct()
351                (PREEMPH_FILT_FAC * synth[i - ORDER - fac_length - 1]);  in ixheaacd_tcx_mdct()
354     TTT = fac_length % LEN_SUBFR;  in ixheaacd_tcx_mdct()
356       ixheaacd_residual_tool_float(ptr_a, &buf[ORDER], &exc[-fac_length], TTT,  in ixheaacd_tcx_mdct()
359     loop_count = (fac_length - TTT) / LEN_SUBFR;  in ixheaacd_tcx_mdct()
361                                  &exc[TTT - fac_length], LEN_SUBFR, loop_count);  in ixheaacd_tcx_mdct()