99 void mdct_init( H_MDCT hMdct,  in mdct_init()  argument
103   hMdct->overlap.freq = overlap;  in mdct_init()
105   hMdct->prev_fr = 0;  in mdct_init()
106   hMdct->prev_nr = 0;  in mdct_init()
107   hMdct->prev_tl = 0;  in mdct_init()
108   hMdct->ov_size = overlapBufferSize;  in mdct_init()
153         H_MDCT hMdct,  in imdct_drain()  argument
161     buffered_samples = hMdct->ov_offset;  in imdct_drain()
166       FDKmemcpy(output, hMdct->overlap.time, buffered_samples*sizeof(FIXP_DBL));  in imdct_drain()
167       hMdct->ov_offset = 0;  in imdct_drain()
174         H_MDCT hMdct,  in imdct_copy_ov_and_nr()  argument
182   nt = fMin(hMdct->ov_offset, nrSamples);  in imdct_copy_ov_and_nr()
184   nf = fMin(hMdct->prev_nr, nrSamples);  in imdct_copy_ov_and_nr()
186   FDKmemcpy(pTimeData, hMdct->overlap.time, nt*sizeof(FIXP_DBL));  in imdct_copy_ov_and_nr()
189   pOvl = hMdct->overlap.freq + hMdct->ov_size - 1;  in imdct_copy_ov_and_nr()
199 void imdct_adapt_parameters(H_MDCT hMdct, int *pfl, int *pnl, int tl, const FIXP_WTP *wls, int noOu…  in imdct_adapt_parameters()  argument
203   if (hMdct->prev_tl == 0) {  in imdct_adapt_parameters()
204     hMdct->prev_wrs    = wls;  in imdct_adapt_parameters()
205     hMdct->prev_fr     = fl;  in imdct_adapt_parameters()
206     hMdct->prev_nr     = (noOutSamples-fl)>>1;  in imdct_adapt_parameters()
207     hMdct->prev_tl     = noOutSamples;  in imdct_adapt_parameters()
208     hMdct->ov_offset   = 0;  in imdct_adapt_parameters()
212   window_diff = (hMdct->prev_fr - fl)>>1;  in imdct_adapt_parameters()
215   if (hMdct->prev_nr + window_diff > 0) {  in imdct_adapt_parameters()
225     if (fl < hMdct->prev_fr) {  in imdct_adapt_parameters()
236     hMdct->prev_nr += window_diff;  in imdct_adapt_parameters()
237     hMdct->prev_fr = fl;  in imdct_adapt_parameters()
238     hMdct->prev_wrs = wls;  in imdct_adapt_parameters()
241     fl = hMdct->prev_fr;  in imdct_adapt_parameters()
249         H_MDCT hMdct,  in imdct_block()  argument
276   if (hMdct->prev_fr != fl) {  in imdct_block()
277     imdct_adapt_parameters(hMdct, &fl, &nl, tl, wls, noOutSamples);  in imdct_block()
280   pOvl = hMdct->overlap.freq + hMdct->ov_size - 1;  in imdct_block()
284     for (i=0; i<hMdct->ov_offset; i++) {  in imdct_block()
285       *pOut0 = hMdct->overlap.time[i];  in imdct_block()
288     nrSamples = hMdct->ov_offset;  in imdct_block()
289     hMdct->ov_offset = 0;  in imdct_block()
300     pWindow = hMdct->prev_wrs;  in imdct_block()
318       pOut0 = hMdct->overlap.time + hMdct->ov_offset;  in imdct_block()
319       hMdct->ov_offset += hMdct->prev_nr + fl/2;  in imdct_block()
322       nrSamples += hMdct->prev_nr + fl/2;  in imdct_block()
326     for (i=0; i<hMdct->prev_nr; i++) {  in imdct_block()
334       pOut1 = hMdct->overlap.time + hMdct->ov_offset + fl/2 - 1;  in imdct_block()
335       hMdct->ov_offset += fl/2 + nl;  in imdct_block()
368     hMdct->prev_nr = nr;  in imdct_block()
369     hMdct->prev_fr = fr;  in imdct_block()
370     hMdct->prev_tl = tl;  in imdct_block()
371     hMdct->prev_wrs = wrs;  in imdct_block()
376   pOvl = hMdct->overlap.freq + hMdct->ov_size - tl/2;  in imdct_block()
377   FDK_ASSERT(pOvl >= hMdct->overlap.time + hMdct->ov_offset);  in imdct_block()
378   FDK_ASSERT(tl/2 <= hMdct->ov_size);  in imdct_block()