-void ff_ac3_bit_alloc_calc_bap(int16_t *mask, int16_t *psd, int start, int end,
- int snr_offset, int floor,
- const uint8_t *bap_tab, uint8_t *bap)
-{
- int bin, band;
-
- /* special case, if snr offset is -960, set all bap's to zero */
- if (snr_offset == -960) {
- memset(bap, 0, AC3_MAX_COEFS);
- return;
- }
-
- bin = start;
- band = bin_to_band_tab[start];
- do {
- int m = (FFMAX(mask[band] - snr_offset - floor, 0) & 0x1FE0) + floor;
- int band_end = FFMIN(band_start_tab[band+1], end);
- for (; bin < band_end; bin++) {
- int address = av_clip((psd[bin] - m) >> 5, 0, 63);
- bap[bin] = bap_tab[address];
- }
- } while (end > band_start_tab[band++]);
-}
-