};
#endif
+const float ff_pow_0_7[10] = {
+ 0.700000, 0.490000, 0.343000, 0.240100, 0.168070,
+ 0.117649, 0.082354, 0.057648, 0.040354, 0.028248
+};
+
+const float ff_pow_0_75[10] = {
+ 0.750000, 0.562500, 0.421875, 0.316406, 0.237305,
+ 0.177979, 0.133484, 0.100113, 0.075085, 0.056314
+};
+
+const float ff_pow_0_55[10] = {
+ 0.550000, 0.302500, 0.166375, 0.091506, 0.050328,
+ 0.027681, 0.015224, 0.008373, 0.004605, 0.002533
+};
+
+const float ff_b60_sinc[61] = {
+ 0.898529 , 0.865051 , 0.769257 , 0.624054 , 0.448639 , 0.265289 ,
+ 0.0959167 , -0.0412598 , -0.134338 , -0.178986 , -0.178528 , -0.142609 ,
+-0.0849304 , -0.0205078 , 0.0369568 , 0.0773926 , 0.0955200 , 0.0912781 ,
+ 0.0689392 , 0.0357056 , 0. , -0.0305481 , -0.0504150 , -0.0570068 ,
+-0.0508423 , -0.0350037 , -0.0141602 , 0.00665283, 0.0230713 , 0.0323486 ,
+ 0.0335388 , 0.0275879 , 0.0167847 , 0.00411987, -0.00747681, -0.0156860 ,
+-0.0193481 , -0.0183716 , -0.0137634 , -0.00704956, 0. , 0.00582886 ,
+ 0.00939941, 0.0103760 , 0.00903320, 0.00604248, 0.00238037, -0.00109863 ,
+-0.00366211, -0.00497437, -0.00503540, -0.00402832, -0.00241089, -0.000579834,
+ 0.00103760, 0.00222778, 0.00277710, 0.00271606, 0.00213623, 0.00115967 ,
+ 0.
+};
+
void ff_acelp_fc_pulse_per_track(
int16_t* fc_v,
const uint8_t *tab1,
fc_v[tab2[pulse_indexes]] += (pulse_signs & 1) ? 8191 : -8192;
}
+void ff_decode_10_pulses_35bits(const int16_t *fixed_index,
+ AMRFixed *fixed_sparse,
+ const uint8_t *gray_decode,
+ int half_pulse_count, int bits)
+{
+ int i;
+ int mask = (1 << bits) - 1;
+
+ fixed_sparse->n = 2 * half_pulse_count;
+ for (i = 0; i < half_pulse_count; i++) {
+ const int pos1 = gray_decode[fixed_index[2*i+1] & mask] + i;
+ const int pos2 = gray_decode[fixed_index[2*i ] & mask] + i;
+ const float sign = (fixed_index[2*i+1] & (1 << bits)) ? -1.0 : 1.0;
+ fixed_sparse->x[2*i+1] = pos1;
+ fixed_sparse->x[2*i ] = pos2;
+ fixed_sparse->y[2*i+1] = sign;
+ fixed_sparse->y[2*i ] = pos2 < pos1 ? -sign : sign;
+ }
+}
+
void ff_acelp_weighted_vector_sum(
int16_t* out,
const int16_t *in_a,
*gain_mem = mem;
}
+
+void ff_scale_vector_to_given_sum_of_squares(float *out, const float *in,
+ float sum_of_squares, const int n)
+{
+ int i;
+ float scalefactor = ff_dot_productf(in, in, n);
+ if (scalefactor)
+ scalefactor = sqrt(sum_of_squares / scalefactor);
+ for (i = 0; i < n; i++)
+ out[i] = in[i] * scalefactor;
+}
+
+void ff_set_fixed_vector(float *out, const AMRFixed *in, float scale, int size)
+{
+ int i;
+
+ for (i=0; i < in->n; i++) {
+ int x = in->x[i];
+ float y = in->y[i] * scale;
+ out[x] += y;
+
+ x += in->pitch_lag;
+ while (x < size) {
+ y *= in->pitch_fac;
+ out[x] += y;
+ x += in->pitch_lag;
+ }
+ }
+}
+
+void ff_clear_fixed_vector(float *out, const AMRFixed *in, int size)
+{
+ int i;
+
+ for (i=0; i < in->n; i++) {
+ int x = in->x[i];
+ out[x] = 0.0;
+
+ x += in->pitch_lag;
+ while (x < size) {
+ out[x] = 0.0;
+ x += in->pitch_lag;
+ }
+ }
+}