0, 0, 0, 0, 0, 0, 0, 0, 8, 8, 8, 8, 16, 16, 16, 21, 21, 24, 29, 34, 36
};
+/* Positive - increased freqeuency resolution (only possible on transients)
+ * Negative - increased time resolution */
const int8_t ff_celt_tf_select[4][2][2][2] = {
- { { { 0, -1 }, { 0, -1 } }, { { 0, -1 }, { 0, -1 } } },
- { { { 0, -1 }, { 0, -2 } }, { { 1, 0 }, { 1, -1 } } },
- { { { 0, -2 }, { 0, -3 } }, { { 2, 0 }, { 1, -1 } } },
- { { { 0, -2 }, { 0, -3 } }, { { 3, 0 }, { 1, -1 } } }
+ /* OFF ON Transient frame */
+ /* OFF ON OFF ON TF select flag */
+ /* OFF ON OFF ON OFF ON OFF ON TF change flag */
+ { { { 0, -1 }, { 0, -1 } }, { { 0, -1 }, { 0, -1 } } }, /* 120 */
+ { { { 0, -1 }, { 0, -2 } }, { { 1, 0 }, { 1, -1 } } }, /* 240 */
+ { { { 0, -2 }, { 0, -3 } }, { { 2, 0 }, { 1, -1 } } }, /* 480 */
+ { { { 0, -2 }, { 0, -3 } }, { { 3, 0 }, { 1, -1 } } } /* 960 */
};
const float ff_celt_mean_energy[] = {
29440.0f/32768.0f, 26112.0f/32768.0f, 21248.0f/32768.0f, 16384.0f/32768.0f
};
-const float ff_celt_beta_coef[] = { /* TODO: precompute 1 minus this if the code ends up neater */
- 30147.0f/32768.0f, 22282.0f/32768.0f, 12124.0f/32768.0f, 6554.0f/32768.0f
+const float ff_celt_beta_coef[] = {
+ 1.0f - (30147.0f/32768.0f), 1.0f - (22282.0f/32768.0f), 1.0f - (12124.0f/32768.0f), 1.0f - (6554.0f/32768.0f),
};
const uint8_t ff_celt_coarse_energy_dist[4][2][42] = {
1409933619
};
-DECLARE_ALIGNED(32, const float, ff_celt_window)[120] = {
+const float ff_celt_postfilter_taps[3][3] = {
+ { 0.3066406250f, 0.2170410156f, 0.1296386719f },
+ { 0.4638671875f, 0.2680664062f, 0.0 },
+ { 0.7998046875f, 0.1000976562f, 0.0 }
+};
+
+DECLARE_ALIGNED(32, static const float, ff_celt_window_padded)[136] = {
+ 0.00000000f, 0.00000000f, 0.00000000f, 0.00000000f,
+ 0.00000000f, 0.00000000f, 0.00000000f, 0.00000000f,
6.7286966e-05f, 0.00060551348f, 0.0016815970f, 0.0032947962f, 0.0054439943f,
0.0081276923f, 0.011344001f, 0.015090633f, 0.019364886f, 0.024163635f,
0.029483315f, 0.035319905f, 0.041668911f, 0.048525347f, 0.055883718f,
0.99499004f, 0.99592297f, 0.99672162f, 0.99739874f, 0.99796667f,
0.99843728f, 0.99882195f, 0.99913147f, 0.99937606f, 0.99956527f,
0.99970802f, 0.99981248f, 0.99988613f, 0.99993565f, 0.99996697f,
- 0.99998518f, 0.99999457f, 0.99999859f, 0.99999982f, 1.0000000f,
+ 0.99998518f, 0.99999457f, 0.99999859f, 0.99999982f, 1.00000000f,
+ 1.00000000f, 1.00000000f, 1.00000000f, 1.00000000f, 1.00000000f,
+ 1.00000000f, 1.00000000f, 1.00000000f,
};
+const float *ff_celt_window = &ff_celt_window_padded[8];
+
/* square of the window, used for the postfilter */
const float ff_celt_window2[120] = {
4.5275357e-09f, 3.66647e-07f, 2.82777e-06f, 1.08557e-05f, 2.96371e-05f, 6.60594e-05f,