FreeCalypso > hg > gsm-net-reveng

annotate trau-decode/parse-amr.c @ 89:865b104ffbab

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trau-parse: AMR 4k75 CRC
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 05 Mar 2025 00:33:45 +0000
parents cec24988550a
children 31e17dd64fc1
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1 /*
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2 * Here we implement parsing/decoding of AMR frames as in 3GPP TS 48.060
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3 * section 5.5.1.2, striving to decode and display as much as we can.
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4 */
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5
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6 #include <stdio.h>
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7 #include <stdint.h>
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8 #include <stdlib.h>
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9 #include <string.h>
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10 #include <strings.h>
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11 #include "osmo_bits.h"
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12
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13 /*
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14 * AMR TRAU parity (same as EFR)
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15 *
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16 * g(x) = x^3 + x^1 + 1
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17 */
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18 static const struct osmo_crc8gen_code gsm0860_amr_crc3 = {
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19 .bits = 3,
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20 .poly = 0x3,
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21 .init = 0x0,
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22 .remainder = 0x7,
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23 };
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24
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25 static int saved_mode, saved_mode_valid;
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26
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27 static char *fclass_names[4] = {
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28 "No_Speech", "Speech_Bad", "Speech_Degraded", "Speech_Good"
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29 };
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30
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31 static char *nospch_class_names[8] = {
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32 "No_Data", "invalid", "invalid", "invalid",
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33 "Sid_Bad", "Sid_Update", "Onset", "Sid_First"
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34 };
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35
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36 static unsigned
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37 bits_to_num(bits, nbits)
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38 ubit_t *bits;
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39 unsigned nbits;
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40 {
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41 unsigned accum;
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42 unsigned n;
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43
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44 accum = 0;
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45 for (n = 0; n < nbits; n++) {
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46 accum <<= 1;
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47 if (*bits)
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48 accum |= 1;
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49 bits++;
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50 }
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51 return accum;
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52 }
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53
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54 static void
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55 decode_mode_0(c_bits, d_bits)
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56 ubit_t *c_bits, *d_bits;
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57 {
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58 ubit_t crc_collect[56];
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59 int crc1, crc2, crc3, crc4;
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60
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61 bcopy(c_bits, crc_collect, 25);
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62 bcopy(d_bits + 44, crc_collect + 25, 16);
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63 bcopy(d_bits + 61, crc_collect + 41, 2);
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64 bcopy(d_bits + 64, crc_collect + 43, 9);
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65 bcopy(d_bits + 88, crc_collect + 52, 4);
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66 crc1 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 56,
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67 d_bits + 92);
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68 crc2 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, d_bits + 95, 2,
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69 d_bits + 108);
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70 bcopy(d_bits + 111, crc_collect, 2);
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71 bcopy(d_bits + 128, crc_collect + 2, 4);
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72 crc3 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 6,
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73 d_bits + 132);
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74 crc4 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, d_bits + 135, 2,
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75 d_bits + 148);
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76 printf(" CRC %s %s %s %s\n",
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77 crc1 ? "bad" : "good", crc2 ? "bad" : "good",
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78 crc3 ? "bad" : "good", crc4 ? "bad" : "good");
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79 }
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80
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81 static void
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82 decode_mode_1(c_bits, d_bits)
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83 ubit_t *c_bits, *d_bits;
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84 {
88
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85 ubit_t crc_collect[57];
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86 int crc1, crc2, crc3, crc4;
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87
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88 bcopy(c_bits, crc_collect, 25);
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89 bcopy(d_bits + 46, crc_collect + 25, 16);
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90 bcopy(d_bits + 64, crc_collect + 41, 11);
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91 bcopy(d_bits + 87, crc_collect + 52, 5);
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92 crc1 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 57,
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93 d_bits + 92);
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94 bcopy(d_bits + 95, crc_collect, 2);
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95 bcopy(d_bits + 109, crc_collect + 2, 5);
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96 crc2 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 7,
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97 d_bits + 114);
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98 bcopy(d_bits + 117, crc_collect, 2);
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99 bcopy(d_bits + 131, crc_collect + 2, 5);
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100 crc3 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 7,
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101 d_bits + 136);
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102 bcopy(d_bits + 139, crc_collect, 2);
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103 bcopy(d_bits + 153, crc_collect + 2, 5);
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104 crc4 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 7,
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105 d_bits + 158);
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106 printf(" CRC %s %s %s %s\n",
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107 crc1 ? "bad" : "good", crc2 ? "bad" : "good",
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108 crc3 ? "bad" : "good", crc4 ? "bad" : "good");
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109 }
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110
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111 static void
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112 decode_mode_2(c_bits, d_bits)
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113 ubit_t *c_bits, *d_bits;
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114 {
87
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115 ubit_t crc_collect[54];
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116 int crc1, crc2, crc3, crc4;
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117
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118 bcopy(c_bits, crc_collect, 25);
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119 bcopy(d_bits + 41, crc_collect + 25, 17);
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120 bcopy(d_bits + 67, crc_collect + 42, 8);
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121 bcopy(d_bits + 88, crc_collect + 50, 4);
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122 crc1 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 54,
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123 d_bits + 92);
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124 bcopy(d_bits + 95, crc_collect, 3);
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125 bcopy(d_bits + 112, crc_collect + 3, 4);
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126 crc2 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 7,
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127 d_bits + 116);
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parents: 86
diff changeset
128 bcopy(d_bits + 119, crc_collect, 8);
9cd468f6872c trau-parse: AMR 5k90 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 86
diff changeset
129 bcopy(d_bits + 140, crc_collect + 8, 4);
9cd468f6872c trau-parse: AMR 5k90 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 86
diff changeset
130 crc3 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 12,
9cd468f6872c trau-parse: AMR 5k90 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 86
diff changeset
131 d_bits + 144);
9cd468f6872c trau-parse: AMR 5k90 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 86
diff changeset
132 bcopy(d_bits + 147, crc_collect, 3);
9cd468f6872c trau-parse: AMR 5k90 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 86
diff changeset
133 bcopy(d_bits + 164, crc_collect + 3, 4);
9cd468f6872c trau-parse: AMR 5k90 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 86
diff changeset
134 crc4 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 7,
9cd468f6872c trau-parse: AMR 5k90 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 86
diff changeset
135 d_bits + 168);
9cd468f6872c trau-parse: AMR 5k90 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 86
diff changeset
136 printf(" CRC %s %s %s %s\n",
9cd468f6872c trau-parse: AMR 5k90 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 86
diff changeset
137 crc1 ? "bad" : "good", crc2 ? "bad" : "good",
9cd468f6872c trau-parse: AMR 5k90 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 86
diff changeset
138 crc3 ? "bad" : "good", crc4 ? "bad" : "good");
79
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
139 }
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
140
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
141 static void
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
142 decode_mode_3(c_bits, d_bits)
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
143 ubit_t *c_bits, *d_bits;
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
144 {
86
8b7ba6f4a85e trau-parse: AMR 6k70 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 85
diff changeset
145 ubit_t crc_collect[57];
8b7ba6f4a85e trau-parse: AMR 6k70 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 85
diff changeset
146 int crc1, crc2, crc3, crc4;
8b7ba6f4a85e trau-parse: AMR 6k70 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 85
diff changeset
147
8b7ba6f4a85e trau-parse: AMR 6k70 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 85
diff changeset
148 bcopy(c_bits, crc_collect, 25);
8b7ba6f4a85e trau-parse: AMR 6k70 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 85
diff changeset
149 bcopy(d_bits + 37, crc_collect + 25, 17);
8b7ba6f4a85e trau-parse: AMR 6k70 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 85
diff changeset
150 crc_collect[42] = d_bits[56];
8b7ba6f4a85e trau-parse: AMR 6k70 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 85
diff changeset
151 crc_collect[43] = d_bits[60];
8b7ba6f4a85e trau-parse: AMR 6k70 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 85
diff changeset
152 bcopy(d_bits + 63, crc_collect + 44, 8);
8b7ba6f4a85e trau-parse: AMR 6k70 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 85
diff changeset
153 bcopy(d_bits + 85, crc_collect + 52, 5);
8b7ba6f4a85e trau-parse: AMR 6k70 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 85
diff changeset
154 crc1 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 57,
8b7ba6f4a85e trau-parse: AMR 6k70 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 85
diff changeset
155 d_bits + 92);
8b7ba6f4a85e trau-parse: AMR 6k70 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 85
diff changeset
156 bcopy(d_bits + 95, crc_collect, 4);
8b7ba6f4a85e trau-parse: AMR 6k70 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 85
diff changeset
157 bcopy(d_bits + 113, crc_collect + 4, 5);
8b7ba6f4a85e trau-parse: AMR 6k70 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 85
diff changeset
158 crc2 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 9,
8b7ba6f4a85e trau-parse: AMR 6k70 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 85
diff changeset
159 d_bits + 120);
8b7ba6f4a85e trau-parse: AMR 6k70 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 85
diff changeset
160 bcopy(d_bits + 123, crc_collect, 8);
8b7ba6f4a85e trau-parse: AMR 6k70 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 85
diff changeset
161 bcopy(d_bits + 145, crc_collect + 8, 5);
8b7ba6f4a85e trau-parse: AMR 6k70 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 85
diff changeset
162 crc3 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 13,
8b7ba6f4a85e trau-parse: AMR 6k70 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 85
diff changeset
163 d_bits + 152);
8b7ba6f4a85e trau-parse: AMR 6k70 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 85
diff changeset
164 bcopy(d_bits + 155, crc_collect, 4);
8b7ba6f4a85e trau-parse: AMR 6k70 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 85
diff changeset
165 bcopy(d_bits + 173, crc_collect + 4, 5);
8b7ba6f4a85e trau-parse: AMR 6k70 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 85
diff changeset
166 crc4 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 9,
8b7ba6f4a85e trau-parse: AMR 6k70 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 85
diff changeset
167 d_bits + 180);
8b7ba6f4a85e trau-parse: AMR 6k70 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 85
diff changeset
168 printf(" CRC %s %s %s %s\n",
8b7ba6f4a85e trau-parse: AMR 6k70 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 85
diff changeset
169 crc1 ? "bad" : "good", crc2 ? "bad" : "good",
8b7ba6f4a85e trau-parse: AMR 6k70 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 85
diff changeset
170 crc3 ? "bad" : "good", crc4 ? "bad" : "good");
79
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
171 }
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
172
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
173 static void
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
174 decode_mode_4(c_bits, d_bits)
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
175 ubit_t *c_bits, *d_bits;
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
176 {
83
5e2ecfd45fc3 trau-parse: AMR 7k40 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 82
diff changeset
177 ubit_t crc_collect[59];
5e2ecfd45fc3 trau-parse: AMR 7k40 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 82
diff changeset
178 int crc1, crc2, crc3, crc4;
5e2ecfd45fc3 trau-parse: AMR 7k40 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 82
diff changeset
179
5e2ecfd45fc3 trau-parse: AMR 7k40 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 82
diff changeset
180 bcopy(c_bits, crc_collect, 25);
5e2ecfd45fc3 trau-parse: AMR 7k40 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 82
diff changeset
181 bcopy(d_bits + 34, crc_collect + 25, 20);
5e2ecfd45fc3 trau-parse: AMR 7k40 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 82
diff changeset
182 bcopy(d_bits + 55, crc_collect + 45, 3);
5e2ecfd45fc3 trau-parse: AMR 7k40 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 82
diff changeset
183 bcopy(d_bits + 60, crc_collect + 48, 6);
5e2ecfd45fc3 trau-parse: AMR 7k40 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 82
diff changeset
184 bcopy(d_bits + 85, crc_collect + 54, 2);
5e2ecfd45fc3 trau-parse: AMR 7k40 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 82
diff changeset
185 bcopy(d_bits + 88, crc_collect + 56, 3);
5e2ecfd45fc3 trau-parse: AMR 7k40 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 82
diff changeset
186 crc1 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 59,
5e2ecfd45fc3 trau-parse: AMR 7k40 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 82
diff changeset
187 d_bits + 92);
5e2ecfd45fc3 trau-parse: AMR 7k40 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 82
diff changeset
188 bcopy(d_bits + 95, crc_collect, 3);
5e2ecfd45fc3 trau-parse: AMR 7k40 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 82
diff changeset
189 bcopy(d_bits + 117, crc_collect + 3, 2);
5e2ecfd45fc3 trau-parse: AMR 7k40 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 82
diff changeset
190 bcopy(d_bits + 120, crc_collect + 5, 3);
5e2ecfd45fc3 trau-parse: AMR 7k40 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 82
diff changeset
191 crc2 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 8,
5e2ecfd45fc3 trau-parse: AMR 7k40 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 82
diff changeset
192 d_bits + 124);
5e2ecfd45fc3 trau-parse: AMR 7k40 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 82
diff changeset
193 bcopy(d_bits + 127, crc_collect, 6);
5e2ecfd45fc3 trau-parse: AMR 7k40 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 82
diff changeset
194 bcopy(d_bits + 152, crc_collect + 6, 2);
5e2ecfd45fc3 trau-parse: AMR 7k40 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 82
diff changeset
195 bcopy(d_bits + 155, crc_collect + 8, 3);
5e2ecfd45fc3 trau-parse: AMR 7k40 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 82
diff changeset
196 crc3 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 11,
5e2ecfd45fc3 trau-parse: AMR 7k40 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 82
diff changeset
197 d_bits + 159);
5e2ecfd45fc3 trau-parse: AMR 7k40 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 82
diff changeset
198 bcopy(d_bits + 162, crc_collect, 3);
5e2ecfd45fc3 trau-parse: AMR 7k40 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 82
diff changeset
199 bcopy(d_bits + 184, crc_collect + 3, 2);
5e2ecfd45fc3 trau-parse: AMR 7k40 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 82
diff changeset
200 bcopy(d_bits + 187, crc_collect + 5, 2);
5e2ecfd45fc3 trau-parse: AMR 7k40 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 82
diff changeset
201 crc4 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 7,
5e2ecfd45fc3 trau-parse: AMR 7k40 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 82
diff changeset
202 d_bits + 191);
5e2ecfd45fc3 trau-parse: AMR 7k40 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 82
diff changeset
203 printf(" CRC %s %s %s %s\n",
5e2ecfd45fc3 trau-parse: AMR 7k40 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 82
diff changeset
204 crc1 ? "bad" : "good", crc2 ? "bad" : "good",
5e2ecfd45fc3 trau-parse: AMR 7k40 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 82
diff changeset
205 crc3 ? "bad" : "good", crc4 ? "bad" : "good");
79
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
206 }
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
207
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
208 static void
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
209 decode_mode_5(c_bits, d_bits)
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
210 ubit_t *c_bits, *d_bits;
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
211 {
82
31a8d34b71ed trau-parse: AMR 7k95 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 81
diff changeset
212 ubit_t crc_collect[64];
31a8d34b71ed trau-parse: AMR 7k95 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 81
diff changeset
213 int crc1, crc2, crc3, crc4;
31a8d34b71ed trau-parse: AMR 7k95 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 81
diff changeset
214
31a8d34b71ed trau-parse: AMR 7k95 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 81
diff changeset
215 bcopy(c_bits, crc_collect, 25);
31a8d34b71ed trau-parse: AMR 7k95 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 81
diff changeset
216 bcopy(d_bits + 31, crc_collect + 25, 35);
31a8d34b71ed trau-parse: AMR 7k95 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 81
diff changeset
217 bcopy(d_bits + 83, crc_collect + 60, 2);
31a8d34b71ed trau-parse: AMR 7k95 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 81
diff changeset
218 crc_collect[62] = d_bits[87];
31a8d34b71ed trau-parse: AMR 7k95 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 81
diff changeset
219 crc_collect[63] = d_bits[90];
31a8d34b71ed trau-parse: AMR 7k95 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 81
diff changeset
220 crc1 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 64,
31a8d34b71ed trau-parse: AMR 7k95 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 81
diff changeset
221 d_bits + 92);
31a8d34b71ed trau-parse: AMR 7k95 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 81
diff changeset
222 bcopy(d_bits + 95, crc_collect, 4);
31a8d34b71ed trau-parse: AMR 7k95 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 81
diff changeset
223 bcopy(d_bits + 118, crc_collect + 4, 2);
31a8d34b71ed trau-parse: AMR 7k95 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 81
diff changeset
224 bcopy(d_bits + 122, crc_collect + 6, 4);
31a8d34b71ed trau-parse: AMR 7k95 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 81
diff changeset
225 crc2 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 10,
31a8d34b71ed trau-parse: AMR 7k95 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 81
diff changeset
226 d_bits + 127);
31a8d34b71ed trau-parse: AMR 7k95 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 81
diff changeset
227 bcopy(d_bits + 130, crc_collect, 8);
31a8d34b71ed trau-parse: AMR 7k95 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 81
diff changeset
228 bcopy(d_bits + 155, crc_collect + 8, 2);
31a8d34b71ed trau-parse: AMR 7k95 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 81
diff changeset
229 bcopy(d_bits + 159, crc_collect + 10, 4);
31a8d34b71ed trau-parse: AMR 7k95 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 81
diff changeset
230 crc3 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 14,
31a8d34b71ed trau-parse: AMR 7k95 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 81
diff changeset
231 d_bits + 164);
31a8d34b71ed trau-parse: AMR 7k95 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 81
diff changeset
232 bcopy(d_bits + 167, crc_collect, 4);
31a8d34b71ed trau-parse: AMR 7k95 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 81
diff changeset
233 bcopy(d_bits + 190, crc_collect + 4, 2);
31a8d34b71ed trau-parse: AMR 7k95 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 81
diff changeset
234 bcopy(d_bits + 194, crc_collect + 6, 4);
31a8d34b71ed trau-parse: AMR 7k95 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 81
diff changeset
235 crc4 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 10,
31a8d34b71ed trau-parse: AMR 7k95 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 81
diff changeset
236 d_bits + 199);
31a8d34b71ed trau-parse: AMR 7k95 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 81
diff changeset
237 printf(" CRC %s %s %s %s\n",
31a8d34b71ed trau-parse: AMR 7k95 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 81
diff changeset
238 crc1 ? "bad" : "good", crc2 ? "bad" : "good",
31a8d34b71ed trau-parse: AMR 7k95 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 81
diff changeset
239 crc3 ? "bad" : "good", crc4 ? "bad" : "good");
79
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
240 }
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
241
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
242 static void
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
243 decode_mode_6(c_bits, d_bits)
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
244 ubit_t *c_bits, *d_bits;
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
245 {
81
9eff2af191d5 trau-parse: AMR 10k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 80
diff changeset
246 ubit_t crc_collect[82];
9eff2af191d5 trau-parse: AMR 10k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 80
diff changeset
247 int crc1, crc2, crc3, crc4;
9eff2af191d5 trau-parse: AMR 10k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 80
diff changeset
248
9eff2af191d5 trau-parse: AMR 10k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 80
diff changeset
249 bcopy(c_bits, crc_collect, 25);
9eff2af191d5 trau-parse: AMR 10k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 80
diff changeset
250 bcopy(d_bits, crc_collect + 25, 45);
9eff2af191d5 trau-parse: AMR 10k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 80
diff changeset
251 bcopy(d_bits + 46, crc_collect + 70, 8);
9eff2af191d5 trau-parse: AMR 10k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 80
diff changeset
252 bcopy(d_bits + 85, crc_collect + 78, 2);
9eff2af191d5 trau-parse: AMR 10k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 80
diff changeset
253 bcopy(d_bits + 88, crc_collect + 80, 2);
9eff2af191d5 trau-parse: AMR 10k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 80
diff changeset
254 crc1 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 82,
9eff2af191d5 trau-parse: AMR 10k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 80
diff changeset
255 d_bits + 92);
9eff2af191d5 trau-parse: AMR 10k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 80
diff changeset
256 bcopy(d_bits + 95, crc_collect, 4);
9eff2af191d5 trau-parse: AMR 10k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 80
diff changeset
257 bcopy(d_bits + 131, crc_collect + 4, 2);
9eff2af191d5 trau-parse: AMR 10k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 80
diff changeset
258 bcopy(d_bits + 134, crc_collect + 6, 2);
9eff2af191d5 trau-parse: AMR 10k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 80
diff changeset
259 crc2 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 8,
9eff2af191d5 trau-parse: AMR 10k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 80
diff changeset
260 d_bits + 138);
9eff2af191d5 trau-parse: AMR 10k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 80
diff changeset
261 bcopy(d_bits + 141, crc_collect, 8);
9eff2af191d5 trau-parse: AMR 10k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 80
diff changeset
262 bcopy(d_bits + 180, crc_collect + 8, 2);
9eff2af191d5 trau-parse: AMR 10k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 80
diff changeset
263 bcopy(d_bits + 183, crc_collect + 10, 2);
9eff2af191d5 trau-parse: AMR 10k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 80
diff changeset
264 crc3 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 12,
9eff2af191d5 trau-parse: AMR 10k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 80
diff changeset
265 d_bits + 187);
9eff2af191d5 trau-parse: AMR 10k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 80
diff changeset
266 bcopy(d_bits + 190, crc_collect, 4);
9eff2af191d5 trau-parse: AMR 10k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 80
diff changeset
267 bcopy(d_bits + 226, crc_collect + 4, 2);
9eff2af191d5 trau-parse: AMR 10k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 80
diff changeset
268 bcopy(d_bits + 229, crc_collect + 6, 2);
9eff2af191d5 trau-parse: AMR 10k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 80
diff changeset
269 bcopy(d_bits + 233, crc_collect + 8, 20);
9eff2af191d5 trau-parse: AMR 10k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 80
diff changeset
270 crc4 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 28,
9eff2af191d5 trau-parse: AMR 10k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 80
diff changeset
271 d_bits + 253);
9eff2af191d5 trau-parse: AMR 10k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 80
diff changeset
272 printf(" CRC %s %s %s %s\n",
9eff2af191d5 trau-parse: AMR 10k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 80
diff changeset
273 crc1 ? "bad" : "good", crc2 ? "bad" : "good",
9eff2af191d5 trau-parse: AMR 10k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 80
diff changeset
274 crc3 ? "bad" : "good", crc4 ? "bad" : "good");
79
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
275 }
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
276
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
277 static void
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
278 decode_mode_7(c_bits, d_bits)
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
279 ubit_t *c_bits, *d_bits;
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
280 {
80
58dfdb2fc6df trau-parse: AMR 12k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
281 ubit_t crc_collect[69];
58dfdb2fc6df trau-parse: AMR 12k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
282 int crc1, crc2, crc3, crc4;
58dfdb2fc6df trau-parse: AMR 12k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
283
58dfdb2fc6df trau-parse: AMR 12k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
284 bcopy(c_bits, crc_collect, 25);
58dfdb2fc6df trau-parse: AMR 12k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
285 bcopy(d_bits, crc_collect + 25, 29);
58dfdb2fc6df trau-parse: AMR 12k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
286 bcopy(d_bits + 38, crc_collect + 54, 12);
58dfdb2fc6df trau-parse: AMR 12k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
287 bcopy(d_bits + 86, crc_collect + 66, 3);
58dfdb2fc6df trau-parse: AMR 12k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
288 crc1 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 69,
58dfdb2fc6df trau-parse: AMR 12k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
289 d_bits + 91);
58dfdb2fc6df trau-parse: AMR 12k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
290 bcopy(d_bits + 94, crc_collect, 9);
58dfdb2fc6df trau-parse: AMR 12k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
291 bcopy(d_bits + 139, crc_collect + 9, 3);
58dfdb2fc6df trau-parse: AMR 12k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
292 crc2 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 12,
58dfdb2fc6df trau-parse: AMR 12k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
293 d_bits + 144);
58dfdb2fc6df trau-parse: AMR 12k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
294 bcopy(d_bits + 147, crc_collect, 12);
58dfdb2fc6df trau-parse: AMR 12k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
295 bcopy(d_bits + 195, crc_collect + 12, 3);
58dfdb2fc6df trau-parse: AMR 12k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
296 crc3 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 15,
58dfdb2fc6df trau-parse: AMR 12k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
297 d_bits + 200);
58dfdb2fc6df trau-parse: AMR 12k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
298 bcopy(d_bits + 203, crc_collect, 5);
58dfdb2fc6df trau-parse: AMR 12k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
299 bcopy(d_bits + 209, crc_collect + 5, 3);
58dfdb2fc6df trau-parse: AMR 12k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
300 bcopy(d_bits + 248, crc_collect + 8, 3);
58dfdb2fc6df trau-parse: AMR 12k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
301 crc4 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 11,
58dfdb2fc6df trau-parse: AMR 12k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
302 d_bits + 253);
58dfdb2fc6df trau-parse: AMR 12k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
303 printf(" CRC %s %s %s %s\n",
58dfdb2fc6df trau-parse: AMR 12k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
304 crc1 ? "bad" : "good", crc2 ? "bad" : "good",
58dfdb2fc6df trau-parse: AMR 12k2 CRC
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
305 crc3 ? "bad" : "good", crc4 ? "bad" : "good");
79
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
306 }
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
307
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
308 static void (*per_mode_decode[8])() = {
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
309 decode_mode_0,
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
310 decode_mode_1,
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
311 decode_mode_2,
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
312 decode_mode_3,
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
313 decode_mode_4,
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
314 decode_mode_5,
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
315 decode_mode_6,
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
316 decode_mode_7
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
317 };
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
318
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
319 static void
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
320 decode_speech_frame(c_bits, d_bits, cm_hdr)
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
321 ubit_t *c_bits, *d_bits;
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
322 unsigned cm_hdr;
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
323 {
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
324 unsigned mode;
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
325
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
326 if (c_bits[11]) {
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
327 if (!saved_mode_valid) {
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
328 printf(" Mode unknown, cannot decode\n");
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
329 return;
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
330 }
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
331 mode = saved_mode;
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
332 saved_mode_valid = 0;
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
333 } else {
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
334 mode = cm_hdr;
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
335 saved_mode = mode;
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
336 saved_mode_valid = 1;
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
337 }
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
338 printf(" Decoding per speech mode %u\n", mode);
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
339 per_mode_decode[mode](c_bits, d_bits);
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
340 }
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
341
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
342 static void
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
343 decode_nospeech_frame(c_bits, d_bits)
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
344 ubit_t *c_bits, *d_bits;
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
345 {
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
346 ubit_t crc_collect[25 + 61];
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
347 int crc_stat;
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
348
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
349 printf(" No_Spch_Class=%u%u%u (%s) CMI=%u CMR=%u\n",
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
350 d_bits[31], d_bits[32], d_bits[33],
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
351 nospch_class_names[bits_to_num(d_bits + 31, 3)],
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
352 bits_to_num(d_bits + 34, 3), bits_to_num(d_bits + 37, 3));
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
353 printf(" PAB=%u TAE=%u%u\n", d_bits[40], d_bits[41], d_bits[42]);
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
354 bcopy(c_bits, crc_collect, 25);
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
355 bcopy(d_bits + 31, crc_collect + 25, 61);
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
356 crc_stat = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect,
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
357 25 + 61, d_bits + 92);
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
358 printf(" CRC %s\n", crc_stat ? "bad" : "good");
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
359 if (crc_stat) {
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
360 saved_mode_valid = 0;
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
361 } else {
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
362 saved_mode = bits_to_num(d_bits + 34, 3);
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
363 saved_mode_valid = 1;
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
364 }
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
365 }
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
366
78
00fd38c7c8fe trau-decode: factor out parse-amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents: 77
diff changeset
367 void
00fd38c7c8fe trau-decode: factor out parse-amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents: 77
diff changeset
368 print_amr_frame(frame_bits)
00fd38c7c8fe trau-decode: factor out parse-amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents: 77
diff changeset
369 uint8_t *frame_bits;
0
131e0f1972bb beginning of trau-parse program
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
370 {
79
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
371 ubit_t c_bits[25], d_bits[256];
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372 uint8_t fclass, cm_hdr;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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373
79
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374 bcopy(frame_bits + 17, c_bits, 15);
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375 bcopy(frame_bits + 33, c_bits + 15, 10);
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parents: 78
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376 bcopy(frame_bits + 43, d_bits, 5);
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parents: 78
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377 bcopy(frame_bits + 49, d_bits + 5, 15);
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parents: 78
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378 bcopy(frame_bits + 65, d_bits + 20, 15);
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Mychaela Falconia <falcon@freecalypso.org>
parents: 78
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379 bcopy(frame_bits + 81, d_bits + 35, 15);
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Mychaela Falconia <falcon@freecalypso.org>
parents: 78
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380 bcopy(frame_bits + 97, d_bits + 50, 15);
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Mychaela Falconia <falcon@freecalypso.org>
parents: 78
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381 bcopy(frame_bits + 113, d_bits + 65, 15);
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parents: 78
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382 bcopy(frame_bits + 129, d_bits + 80, 15);
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Mychaela Falconia <falcon@freecalypso.org>
parents: 78
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383 bcopy(frame_bits + 145, d_bits + 95, 15);
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Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
384 bcopy(frame_bits + 161, d_bits + 110, 15);
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Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
385 bcopy(frame_bits + 177, d_bits + 125, 15);
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Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
386 bcopy(frame_bits + 193, d_bits + 140, 15);
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
387 bcopy(frame_bits + 209, d_bits + 155, 15);
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
388 bcopy(frame_bits + 225, d_bits + 170, 15);
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Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
389 bcopy(frame_bits + 241, d_bits + 185, 15);
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
390 bcopy(frame_bits + 257, d_bits + 200, 15);
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
391 bcopy(frame_bits + 273, d_bits + 215, 15);
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Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
392 bcopy(frame_bits + 289, d_bits + 230, 15);
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
393 bcopy(frame_bits + 305, d_bits + 245, 11);
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Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
394
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Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
395 printf(" C6-C11: %u\n", bits_to_num(c_bits + 5, 6));
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53f6a04dc472 trau-parse AMR: C13 is UFE
Mychaela Falconia <falcon@freecalypso.org>
parents: 83
diff changeset
396 printf(" RIF=%u UFE=%u Config_Prot=%u%u%u Msg_No=%u%u\n",
79
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Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
397 c_bits[11], c_bits[12], c_bits[13], c_bits[14], c_bits[15],
8c1f20e845a1 trau-parse: more thorough AMR decoding
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parents: 78
diff changeset
398 c_bits[16], c_bits[17]);
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parents: 78
diff changeset
399 fclass = bits_to_num(c_bits + 20, 2);
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
400 cm_hdr = bits_to_num(c_bits + 22, 3);
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
401 printf(" DTXd=%u TFOE=%u FClass=%u%u (%s) %s=%u\n",
8c1f20e845a1 trau-parse: more thorough AMR decoding
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parents: 78
diff changeset
402 c_bits[18], c_bits[19], c_bits[20], c_bits[21],
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
403 fclass_names[fclass], c_bits[11] ? "CMR" : "CMI", cm_hdr);
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Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
404 if (fclass)
8c1f20e845a1 trau-parse: more thorough AMR decoding
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parents: 78
diff changeset
405 decode_speech_frame(c_bits, d_bits, cm_hdr);
8c1f20e845a1 trau-parse: more thorough AMR decoding
Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
406 else
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Mychaela Falconia <falcon@freecalypso.org>
parents: 78
diff changeset
407 decode_nospeech_frame(c_bits, d_bits);
78
00fd38c7c8fe trau-decode: factor out parse-amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents: 77
diff changeset
408 printf(" T1=%u T2=%u T3=%u T4=%u\n", frame_bits[316],
00fd38c7c8fe trau-decode: factor out parse-amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents: 77
diff changeset
409 frame_bits[317], frame_bits[318], frame_bits[319]);
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131e0f1972bb beginning of trau-parse program
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parents:
diff changeset
410 }