Cross Reference: /external/aac/libFDK/src/mdct.cpp

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