31 if (!num_reuse_blocks)
34 for (i = 0; i < nb_coefs; i++) {
35 uint8_t min_exp = *exp;
36 uint8_t *exp1 = exp + 256;
37 for (blk = 0; blk < num_reuse_blocks; blk++) {
38 uint8_t next_exp = *exp1;
39 if (next_exp < min_exp)
50 for (i = 0; i <
len; i++)
58 uint32_t *src32 = (uint32_t *)src;
59 const uint32_t
mask = ~(((1 << shift) - 1) << 16);
62 for (i = 0; i <
len; i += 8) {
63 src32[i ] = (src32[i ] << shift) & mask;
64 src32[i+1] = (src32[i+1] << shift) & mask;
65 src32[i+2] = (src32[i+2] << shift) & mask;
66 src32[i+3] = (src32[i+3] << shift) & mask;
67 src32[i+4] = (src32[i+4] << shift) & mask;
68 src32[i+5] = (src32[i+5] << shift) & mask;
69 src32[i+6] = (src32[i+6] << shift) & mask;
70 src32[i+7] = (src32[i+7] << shift) & mask;
92 const float scale = 1 << 24;
94 *dst++ =
lrintf(*src++ * scale);
95 *dst++ =
lrintf(*src++ * scale);
96 *dst++ =
lrintf(*src++ * scale);
97 *dst++ =
lrintf(*src++ * scale);
98 *dst++ =
lrintf(*src++ * scale);
99 *dst++ =
lrintf(*src++ * scale);
100 *dst++ =
lrintf(*src++ * scale);
101 *dst++ =
lrintf(*src++ * scale);
108 int snr_offset,
int floor,
109 const uint8_t *bap_tab, uint8_t *bap)
111 int bin, band, band_end;
114 if (snr_offset == -960) {
122 int m = (
FFMAX(mask[band] - snr_offset - floor, 0) & 0x1FE0) + floor;
124 band_end =
FFMIN(band_end, end);
126 for (; bin < band_end; bin++) {
127 int address = av_clip((psd[bin] - m) >> 5, 0, 63);
128 bap[bin] = bap_tab[address];
130 }
while (end > band_end);
137 mant_cnt[bap[
len]]++;
141 0, 0, 0, 3, 0, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 16
151 bits += (mant_cnt[
blk][1] / 3) * 5;
154 bits += ((mant_cnt[
blk][2] / 3) + (mant_cnt[blk][4] >> 1)) * 7;
156 bits += mant_cnt[
blk][3] * 3;
158 for (bap = 5; bap < 16; bap++)
168 for (i = 0; i < nb_coefs; i++) {
169 int v = abs(coef[i]);
170 exp[i] = v ? 23 - av_log2(v) : 24;