FreeCalypso > hg > gsm-codec-lib

annotate amrconv/param_asm.c @ 282:9ee8ad3d4d30

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frtest: rm gsmfr-hand-test and gsmfr-max-out utils These hack programs were never properly documented and were written only as part of a debug chase, in pursuit of a bug that ultimately turned out to be in our then-hacky patch to osmo-bts-sysmo, before beginning of proper patches in Osmocom. These hack programs need to be dropped from the present sw package because they depend on old libgsm, and we are eliminating that dependency.
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 14 Apr 2024 05:44:47 +0000
parents 78d1a6513393
children
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211
78d1a6513393 amrconv: new program amr-cod-parse
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1 /*
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2 * This C module is common between amr-cod-parse and amr-ietf-parse
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3 * utilities. It contains the function that takes an array of bits
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4 * in the codec's natural order and reassembles these bits into
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5 * an array of codec parameters.
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6 */
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7
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8 #include <stdint.h>
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9 #include "amr_defs.h"
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10
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11 /* parameter sizes (# of bits), one table per mode */
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12
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13 static const uint8_t bitno_MR475[PRMNO_MR475] = {
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14 8, 8, 7, /* LSP VQ */
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15 8, 7, 2, 8, /* first subframe */
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16 4, 7, 2, /* second subframe */
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17 4, 7, 2, 8, /* third subframe */
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18 4, 7, 2, /* fourth subframe */
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19 };
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20
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21 static const uint8_t bitno_MR515[PRMNO_MR515] = {
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22 8, 8, 7, /* LSP VQ */
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23 8, 7, 2, 6, /* first subframe */
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24 4, 7, 2, 6, /* second subframe */
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25 4, 7, 2, 6, /* third subframe */
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26 4, 7, 2, 6, /* fourth subframe */
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27 };
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28
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29 static const uint8_t bitno_MR59[PRMNO_MR59] = {
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30 8, 9, 9, /* LSP VQ */
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31 8, 9, 2, 6, /* first subframe */
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32 4, 9, 2, 6, /* second subframe */
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33 8, 9, 2, 6, /* third subframe */
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34 4, 9, 2, 6, /* fourth subframe */
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35 };
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36
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37 static const uint8_t bitno_MR67[PRMNO_MR67] = {
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38 8, 9, 9, /* LSP VQ */
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39 8, 11, 3, 7, /* first subframe */
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40 4, 11, 3, 7, /* second subframe */
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41 8, 11, 3, 7, /* third subframe */
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42 4, 11, 3, 7, /* fourth subframe */
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43 };
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44
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45 static const uint8_t bitno_MR74[PRMNO_MR74] = {
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46 8, 9, 9, /* LSP VQ */
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47 8, 13, 4, 7, /* first subframe */
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48 5, 13, 4, 7, /* second subframe */
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49 8, 13, 4, 7, /* third subframe */
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50 5, 13, 4, 7, /* fourth subframe */
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51 };
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52
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53 static const uint8_t bitno_MR795[PRMNO_MR795] = {
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54 9, 9, 9, /* LSP VQ */
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55 8, 13, 4, 4, 5, /* first subframe */
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56 6, 13, 4, 4, 5, /* second subframe */
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57 8, 13, 4, 4, 5, /* third subframe */
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58 6, 13, 4, 4, 5, /* fourth subframe */
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59 };
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60
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61 static const uint8_t bitno_MR102[PRMNO_MR102] = {
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62 8, 9, 9, /* LSP VQ */
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63 8, 1, 1, 1, 1, 10, 10, 7, 7, /* first subframe */
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64 5, 1, 1, 1, 1, 10, 10, 7, 7, /* second subframe */
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65 8, 1, 1, 1, 1, 10, 10, 7, 7, /* third subframe */
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66 5, 1, 1, 1, 1, 10, 10, 7, 7, /* fourth subframe */
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67 };
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68
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69 static const uint8_t bitno_MR122[PRMNO_MR122] = {
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70 7, 8, 9, 8, 6, /* LSP VQ */
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71 9, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 5, /* first subframe */
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72 6, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 5, /* second subframe */
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73 9, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 5, /* third subframe */
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74 6, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 5 /* fourth subframe */
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75 };
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76
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77 static const uint8_t bitno_MRDTX[PRMNO_MRDTX] = {
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78 3,
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79 8, 9, 9,
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80 6
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81 };
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82
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83 static void
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84 bits_to_params(bits, params, table, nparam)
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85 const uint8_t *bits;
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86 uint16_t *params;
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87 const uint8_t *table;
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88 unsigned nparam;
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89 {
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90 const uint8_t *p = bits;
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91 const uint8_t *t = table;
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92 unsigned n, m, acc;
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93
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94 for (n = 0; n < nparam; n++) {
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95 acc = 0;
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96 for (m = 0; m < *t; m++) {
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97 acc <<= 1;
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98 if (*p)
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99 acc |= 1;
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100 p++;
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101 }
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102 params[n] = acc;
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103 t++;
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104 }
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105 }
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106
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107 reassemble_amr_params(bits, params, mode)
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108 const uint8_t *bits;
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109 uint16_t *params;
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110 unsigned mode;
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111 {
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112 switch (mode) {
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113 case MR475:
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114 bits_to_params(bits, params, bitno_MR475, PRMNO_MR475);
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115 return(0);
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116 case MR515:
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117 bits_to_params(bits, params, bitno_MR515, PRMNO_MR515);
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118 return(0);
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119 case MR59:
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120 bits_to_params(bits, params, bitno_MR59, PRMNO_MR59);
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121 return(0);
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122 case MR67:
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123 bits_to_params(bits, params, bitno_MR67, PRMNO_MR67);
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124 return(0);
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125 case MR74:
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126 bits_to_params(bits, params, bitno_MR74, PRMNO_MR74);
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127 return(0);
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128 case MR795:
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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129 bits_to_params(bits, params, bitno_MR795, PRMNO_MR795);
78d1a6513393 amrconv: new program amr-cod-parse
Mychaela Falconia <falcon@freecalypso.org>
parents:
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130 return(0);
78d1a6513393 amrconv: new program amr-cod-parse
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
131 case MR102:
78d1a6513393 amrconv: new program amr-cod-parse
Mychaela Falconia <falcon@freecalypso.org>
parents:
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132 bits_to_params(bits, params, bitno_MR102, PRMNO_MR102);
78d1a6513393 amrconv: new program amr-cod-parse
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
133 return(0);
78d1a6513393 amrconv: new program amr-cod-parse
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
134 case MR122:
78d1a6513393 amrconv: new program amr-cod-parse
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
135 bits_to_params(bits, params, bitno_MR122, PRMNO_MR122);
78d1a6513393 amrconv: new program amr-cod-parse
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
136 return(0);
78d1a6513393 amrconv: new program amr-cod-parse
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
137 case MRDTX:
78d1a6513393 amrconv: new program amr-cod-parse
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
138 bits_to_params(bits, params, bitno_MRDTX, PRMNO_MRDTX);
78d1a6513393 amrconv: new program amr-cod-parse
Mychaela Falconia <falcon@freecalypso.org>
parents:
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139 return(0);
78d1a6513393 amrconv: new program amr-cod-parse
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
140 default:
78d1a6513393 amrconv: new program amr-cod-parse
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141 return(-1);
78d1a6513393 amrconv: new program amr-cod-parse
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
142 }
78d1a6513393 amrconv: new program amr-cod-parse
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
143 }