FreeCalypso > hg > gsm-codec-lib

annotate libgsmfr2/xmaxc_mean.c @ 417:f17e42c63058

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libtwamr: integrate ol_ltp.c
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 07 May 2024 03:21:14 +0000
parents a33edf624061
children
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6ac547f0b903 libgsmfrp: yet another invalid SID logic change, for 1.0.2
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1 /*
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2 * The function implemented in this module computes a mean Xmaxc
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3 * for comfort noise generation from the 4 subframe Xmaxc parameters
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4 * extracted from an input frame.
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5 */
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6
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7 #include <stdint.h>
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a33edf624061 libgsmfr2: start with API definition and port of libgsmfrp code
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8 #include "tw_gsmfr.h"
a33edf624061 libgsmfr2: start with API definition and port of libgsmfrp code
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9 #include "pp_internal.h"
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10
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11 static const uint16_t dequant_table[64] = {
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12 0, 1, 2, 3, 4, 5, 6, 7,
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13 8, 9, 10, 11, 12, 13, 14, 15,
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14 16, 18, 20, 22, 24, 26, 28, 30,
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15 32, 36, 40, 44, 48, 52, 56, 60,
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16 64, 72, 80, 88, 96, 104, 112, 120,
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17 128, 144, 160, 176, 192, 208, 224, 240,
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18 256, 288, 320, 352, 384, 416, 448, 480,
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19 512, 576, 640, 704, 768, 832, 896, 960,
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20 };
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21
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22 static const uint8_t requant_table[1024] = {
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23 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
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24 16, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21, 21, 22, 22, 23, 23,
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25 24, 24, 24, 24, 25, 25, 25, 25, 26, 26, 26, 26, 27, 27, 27, 27,
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26 28, 28, 28, 28, 29, 29, 29, 29, 30, 30, 30, 30, 31, 31, 31, 31,
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27 32, 32, 32, 32, 32, 32, 32, 32, 33, 33, 33, 33, 33, 33, 33, 33,
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28 34, 34, 34, 34, 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, 35, 35,
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29 36, 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, 37, 37, 37, 37, 37,
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30 38, 38, 38, 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, 39, 39, 39,
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31 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40,
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32 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41,
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33 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42,
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34 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43,
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35 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44,
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36 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45,
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37 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46,
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38 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
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39 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48,
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40 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48,
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41 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
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42 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
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43 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50,
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44 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50,
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45 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51,
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46 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51,
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47 52, 52, 52, 52, 52, 52, 52, 52, 52, 52, 52, 52, 52, 52, 52, 52,
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48 52, 52, 52, 52, 52, 52, 52, 52, 52, 52, 52, 52, 52, 52, 52, 52,
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49 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53,
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50 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53,
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51 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54,
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52 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54,
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53 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55,
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54 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55,
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55 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56,
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56 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56,
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57 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56,
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58 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56,
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59 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57,
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60 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57,
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61 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57,
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62 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57,
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63 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58,
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64 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58,
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65 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58,
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66 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58,
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67 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59,
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68 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59,
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69 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59,
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70 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59,
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71 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60,
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72 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60,
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73 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60,
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74 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60,
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75 61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 61,
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76 61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 61,
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77 61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 61,
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78 61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 61,
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79 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62,
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80 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62,
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81 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62,
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82 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62,
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83 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63,
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84 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63,
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85 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63,
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86 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63,
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87 };
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88
256
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89 uint8_t gsmfr_preproc_xmaxc_mean(const uint8_t *frame)
248
6ac547f0b903 libgsmfrp: yet another invalid SID logic change, for 1.0.2
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90 {
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91 unsigned sub, xmaxc, sum;
6ac547f0b903 libgsmfrp: yet another invalid SID logic change, for 1.0.2
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92
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93 sum = 0;
6ac547f0b903 libgsmfrp: yet another invalid SID logic change, for 1.0.2
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94 for (sub = 0; sub < 4; sub++) {
6ac547f0b903 libgsmfrp: yet another invalid SID logic change, for 1.0.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
95 xmaxc = ((frame[sub*7+6] & 0x1F) << 1) | (frame[sub*7+7] >> 7);
6ac547f0b903 libgsmfrp: yet another invalid SID logic change, for 1.0.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
96 sum += dequant_table[xmaxc];
6ac547f0b903 libgsmfrp: yet another invalid SID logic change, for 1.0.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
97 }
6ac547f0b903 libgsmfrp: yet another invalid SID logic change, for 1.0.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
98 xmaxc = requant_table[sum >> 2];
6ac547f0b903 libgsmfrp: yet another invalid SID logic change, for 1.0.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
99 return xmaxc;
6ac547f0b903 libgsmfrp: yet another invalid SID logic change, for 1.0.2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
100 }