/* Generic tables */
-static const uint32_t dca_sample_rates[16] =
-{
- 0, 8000, 16000, 32000, 0, 0, 11025, 22050, 44100, 0, 0,
- 12000, 24000, 48000, 96000, 192000
-};
-
static const uint32_t dca_bit_rates[32] =
{
32000, 56000, 64000, 96000, 112000, 128000,
/* Vector quantization tables */
-static const int8_t high_freq_vq[1024][32] =
+DECLARE_ALIGNED(8, static const int8_t, high_freq_vq)[1024][32] =
{
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
0.01724460535, 0.47964480519, 0.48503074050, 0.01805862412,
};
-/* 10^-(dB/20), with dB being a list of dB values ranging from 0 to -72 */
-/* do a 20*log10(dca_downmix_coeffs) to reconvert the values */
-
-static const float dca_downmix_coeffs[65] = {
- 1.000000000000000, 0.988553094656939, 0.971627951577106, 0.944060876285923, 0.917275935389780, 0.891250938133746,
- 0.865964323360065, 0.841395141645195, 0.817523037943650, 0.794328234724281, 0.771791515585012, 0.749894209332456,
- 0.728618174513228, 0.707945784384138, 0.687859912308808, 0.668343917568615, 0.649381631576211, 0.630957344480193,
- 0.613055792149821, 0.595662143529010, 0.578761988349121, 0.562341325190349, 0.546386549881854, 0.530884444230988,
- 0.515822165072306, 0.501187233627272, 0.446683592150963, 0.398107170553497, 0.354813389233575, 0.316227766016838,
- 0.281838293126445, 0.251188643150958, 0.223872113856834, 0.199526231496888, 0.177827941003892, 0.158489319246111,
- 0.141253754462275, 0.125892541179417, 0.112201845430196, 0.100000000000000, 0.089125093813374, 0.079432823472428,
- 0.070794578438414, 0.063095734448019, 0.053088444423099, 0.044668359215096, 0.037583740428844, 0.031622776601684,
- 0.026607250597988, 0.022387211385683, 0.018836490894898, 0.015848931924611, 0.013335214321633, 0.011220184543020,
- 0.009440608762859, 0.007943282347243, 0.005623413251903, 0.003981071705535, 0.002818382931264, 0.001995262314969,
- 0.001412537544623, 0.001000000000000, 0.000501187233627, 0.000251188643151, 0.000000000000000,
+/*
+ * D.11 Look-up Table for Downmix Scale Factors
+ *
+ * Note that the range of the entries in DmixTable[] is between -60 dB and 0 dB
+ * with addition of -inf (|DMixCoeff| = 0), which is coded with a DmixCode = 0.
+ * Furthermore, the range [-60 to 0] is subdivided into 3 regions, each with a
+ * different grid resolution:
+ *
+ * 1) [-60.000 to -30] with resolution of 0.500 dB
+ * 2) [-29.750 to -15] with resolution of 0.250 dB
+ * 3) [-14.875 to 0] with resolution of 0.125 dB
+ */
+static const float dca_dmixtable[241] = {
+ 0.001000, 0.001059, 0.001122, 0.001189, 0.001259, 0.001334, 0.001413, 0.001496,
+ 0.001585, 0.001679, 0.001778, 0.001884, 0.001995, 0.002113, 0.002239, 0.002371,
+ 0.002512, 0.002661, 0.002818, 0.002985, 0.003162, 0.003350, 0.003548, 0.003758,
+ 0.003981, 0.004217, 0.004467, 0.004732, 0.005012, 0.005309, 0.005623, 0.005957,
+ 0.006310, 0.006683, 0.007079, 0.007499, 0.007943, 0.008414, 0.008913, 0.009441,
+ 0.010000, 0.010593, 0.011220, 0.011885, 0.012589, 0.013335, 0.014125, 0.014962,
+ 0.015849, 0.016788, 0.017783, 0.018836, 0.019953, 0.021135, 0.022387, 0.023714,
+ 0.025119, 0.026607, 0.028184, 0.029854, 0.031623, 0.032546, 0.033497, 0.034475,
+ 0.035481, 0.036517, 0.037584, 0.038681, 0.039811, 0.040973, 0.042170, 0.043401,
+ 0.044668, 0.045973, 0.047315, 0.048697, 0.050119, 0.051582, 0.053088, 0.054639,
+ 0.056234, 0.057876, 0.059566, 0.061306, 0.063096, 0.064938, 0.066834, 0.068786,
+ 0.070795, 0.072862, 0.074989, 0.077179, 0.079433, 0.081752, 0.084140, 0.086596,
+ 0.089125, 0.091728, 0.094406, 0.097163, 0.100000, 0.102920, 0.105925, 0.109018,
+ 0.112202, 0.115478, 0.118850, 0.122321, 0.125893, 0.129569, 0.133352, 0.137246,
+ 0.141254, 0.145378, 0.149624, 0.153993, 0.158489, 0.163117, 0.167880, 0.172783,
+ 0.177828, 0.180406, 0.183021, 0.185674, 0.188365, 0.191095, 0.193865, 0.196675,
+ 0.199526, 0.202418, 0.205353, 0.208329, 0.211349, 0.214412, 0.217520, 0.220673,
+ 0.223872, 0.227117, 0.230409, 0.233749, 0.237137, 0.240575, 0.244062, 0.247600,
+ 0.251189, 0.254830, 0.258523, 0.262271, 0.266073, 0.269929, 0.273842, 0.277811,
+ 0.281838, 0.285924, 0.290068, 0.294273, 0.298538, 0.302866, 0.307256, 0.311709,
+ 0.316228, 0.320812, 0.325462, 0.330179, 0.334965, 0.339821, 0.344747, 0.349744,
+ 0.354813, 0.359956, 0.365174, 0.370467, 0.375837, 0.381285, 0.386812, 0.392419,
+ 0.398107, 0.403878, 0.409732, 0.415671, 0.421697, 0.427809, 0.434010, 0.440301,
+ 0.446684, 0.453158, 0.459727, 0.466391, 0.473151, 0.480010, 0.486968, 0.494026,
+ 0.501187, 0.508452, 0.515822, 0.523299, 0.530884, 0.538580, 0.546387, 0.554307,
+ 0.562341, 0.570493, 0.578762, 0.587151, 0.595662, 0.604296, 0.613056, 0.621942,
+ 0.630957, 0.640103, 0.649382, 0.658795, 0.668344, 0.678032, 0.687860, 0.697831,
+ 0.707107, 0.718208, 0.728618, 0.739180, 0.749894, 0.760764, 0.771792, 0.782979,
+ 0.794328, 0.805842, 0.817523, 0.829373, 0.841395, 0.853591, 0.865964, 0.878517,
+ 0.891251, 0.904170, 0.917276, 0.930572, 0.944061, 0.957745, 0.971628, 0.985712,
+ 1.000000,
};
-static const uint8_t dca_default_coeffs[16][5][2] = {
- { { 13, 13 }, },
- { { 0, 64 }, { 64, 0 }, },
- { { 0, 64 }, { 64, 0 }, },
- { { 0, 64 }, { 64, 0 }, },
- { { 0, 64 }, { 64, 0 }, },
- { { 6, 6 }, { 0, 25 }, { 25, 0 }, },
- { { 0, 25 }, { 25, 0 }, { 13, 13 }, },
- { { 6, 6 }, { 0, 25 }, { 25, 0 }, { 13, 13 }, },
- { { 0, 25 }, { 25, 0 }, { 0, 13 }, { 13, 0 }, },
- { { 6, 6 }, { 0, 25 }, { 25, 0 }, { 0, 13 }, { 13, 0 }, },
+static const float dca_default_coeffs[10][6][2] = {
+ { { 0.707107, 0.707107 }, { 0.000000, 0.000000 }, }, // A [LFE]
+ { { 1.000000, 0.000000 }, { 0.000000, 1.000000 }, { 0.000000, 0.000000 }, }, // A + B (dual mono) [LFE]
+ { { 1.000000, 0.000000 }, { 0.000000, 1.000000 }, { 0.000000, 0.000000 }, }, // L + R (stereo) [LFE]
+ { { 1.000000, 0.000000 }, { 0.000000, 1.000000 }, { 0.000000, 0.000000 }, }, // (L+R) + (L-R) (sum-difference) [LFE]
+ { { 1.000000, 0.000000 }, { 0.000000, 1.000000 }, { 0.000000, 0.000000 }, }, // LT + RT (left and right total) [LFE]
+ { { 0.501187, 0.501187 }, { 0.707107, 0.000000 }, { 0.000000, 0.707107 }, { 0.000000, 0.000000 }, }, // C + L + R [LFE]
+ { { 0.707107, 0.000000 }, { 0.000000, 0.707107 }, { 0.501187, 0.501187 }, { 0.000000, 0.000000 }, }, // L + R + S [LFE]
+ { { 0.501187, 0.501187 }, { 0.707107, 0.000000 }, { 0.000000, 0.707107 }, { 0.501187, 0.501187 }, { 0.000000, 0.000000 }, }, // C + L + R + S [LFE]
+ { { 0.707107, 0.000000 }, { 0.000000, 0.707107 }, { 0.501187, 0.000000 }, { 0.000000, 0.501187 }, { 0.000000, 0.000000 }, }, // L + R + SL + SR [LFE]
+ { { 0.501187, 0.501187 }, { 0.707107, 0.000000 }, { 0.000000, 0.707107 }, { 0.501187, 0.000000 }, { 0.000000, 0.501187 }, { 0.000000, 0.000000 }, }, // C + L + R + SL + SR [LFE]
};
/* downmix coeffs
projects / ffmpeg / blobdiff