FreeCalypso > hg > gsm-codec-lib

annotate libgsmefr/d_homing.c @ 108:3b64f255689a

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libgsmfrp: factor out PRNG into its own module, in preparation for using it as part of speech muting too
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 28 Nov 2022 04:00:18 +0000
parents d80e9f12a1d1
children cc08498ed21b
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1 /**************************************************************************
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2 *
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3 * File Name: d_homing.c
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4 *
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5 * Purpose:
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6 * This file contains the following functions:
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7 *
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8 * decoder_homing_frame_test() checks if a frame of input speech
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9 * parameters matches the Decoder Homing
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10 * Frame pattern.
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11 *
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12 * decoder_reset() called by reset_dec() to reset all of
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13 * the state variables for the decoder
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14 *
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15 * reset_dec() calls functions to reset the state
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16 * variables for the decoder, and for
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17 * the receive DTX and Comfort Noise.
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18 *
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19 **************************************************************************/
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20
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21 #include "gsm_efr.h"
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22 #include "typedef.h"
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23 #include "namespace.h"
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24 #include "cnst.h"
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25 #include "dtx.h"
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26 #include "codec.h"
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27 #include "memops.h"
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28 #include "dec_state.h"
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29 #include "d_homing.h"
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30 #include "q_plsf_5.tab"
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31
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32 #define PRM_NO 57
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33
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34 /***************************************************************************
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35 *
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36 * FUNCTION NAME: decoder_homing_frame_test
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37 *
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38 * PURPOSE:
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39 * Checks if a frame of input speech parameters matches the Decoder
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40 * Homing Frame pattern, which is:
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41 *
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42 * parameter decimal value hexidecimal value
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43 * --------- ------------- -----------------
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44 * LPC 1 4 0x0004
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45 * LPC 2 47 0x002F
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46 * LPC 3 180 0x00B4
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47 * LPC 4 144 0x0090
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48 * LPC 5 62 0x003E
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49 * LTP-LAG 1 342 0x0156
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50 * LTP-GAIN 1 11 0x000B
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51 * PULSE1_1 0 0x0000
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101 *
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102 * INPUT:
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103 * parm[] one frame of speech parameters in parallel format
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104 *
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105 * nbr_of_params
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106 * the number of consecutive parameters in parm[] to match
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107 *
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108 * OUTPUT:
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109 * None
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110 *
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111 * RETURN:
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112 * 0 input frame does not match the Decoder Homing Frame pattern.
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113 * 1 input frame matches the Decoder Homing Frame pattern.
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114 *
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115 **************************************************************************/
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116
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117 Word16 decoder_homing_frame_test (const Word16 parm[], Word16 nbr_of_params)
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118 {
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119 static const Word16 dhf_mask[PRM_NO] =
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120 {
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121 0x0004, /* LPC 1 */
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122 0x002f, /* LPC 2 */
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123 0x00b4, /* LPC 3 */
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diff changeset
124 0x0090, /* LPC 4 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
125 0x003e, /* LPC 5 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
126
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
127 0x0156, /* LTP-LAG 1 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
128 0x000b, /* LTP-GAIN 1 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
129 0x0000, /* PULSE 1_1 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
130 0x0001, /* PULSE 1_2 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
131 0x000f, /* PULSE 1_3 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
132 0x0001, /* PULSE 1_4 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
133 0x000d, /* PULSE 1_5 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
134 0x0000, /* PULSE 1_6 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
135 0x0003, /* PULSE 1_7 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
136 0x0000, /* PULSE 1_8 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
137 0x0003, /* PULSE 1_9 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
138 0x0000, /* PULSE 1_10 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
139 0x0003, /* FCB-GAIN 1 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
140
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141 0x0036, /* LTP-LAG 2 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
142 0x0001, /* LTP-GAIN 2 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
143 0x0008, /* PULSE 2_1 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
144 0x0008, /* PULSE 2_2 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
145 0x0005, /* PULSE 2_3 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
146 0x0008, /* PULSE 2_4 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
147 0x0001, /* PULSE 2_5 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
148 0x0000, /* PULSE 2_6 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
149 0x0000, /* PULSE 2_7 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
150 0x0001, /* PULSE 2_8 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
151 0x0001, /* PULSE 2_9 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
152 0x0000, /* PULSE 2_10 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
153 0x0000, /* FCB-GAIN 2 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
154
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
155 0x0156, /* LTP-LAG 3 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
156 0x0000, /* LTP-GAIN 3 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
157 0x0000, /* PULSE 3_1 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
158 0x0000, /* PULSE 3_2 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
159 0x0000, /* PULSE 3_3 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
160 0x0000, /* PULSE 3_4 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
161 0x0000, /* PULSE 3_5 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
162 0x0000, /* PULSE 3_6 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
163 0x0000, /* PULSE 3_7 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
164 0x0000, /* PULSE 3_8 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
165 0x0000, /* PULSE 3_9 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
166 0x0000, /* PULSE 3_10 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
167 0x0000, /* FCB-GAIN 3 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
168
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
169 0x0036, /* LTP-LAG 4 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
170 0x000b, /* LTP-GAIN 4 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
171 0x0000, /* PULSE 4_1 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
172 0x0000, /* PULSE 4_2 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
173 0x0000, /* PULSE 4_3 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
174 0x0000, /* PULSE 4_4 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
175 0x0000, /* PULSE 4_5 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
176 0x0000, /* PULSE 4_6 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
177 0x0000, /* PULSE 4_7 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
178 0x0000, /* PULSE 4_8 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
179 0x0000, /* PULSE 4_9 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
180 0x0000, /* PULSE 4_10 */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
181 0x0000 /* FCB-GAIN 4 */ };
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
182
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
183 Word16 i, j;
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
184
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
185 for (i = 0; i < nbr_of_params; i++)
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
186 {
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
187 j = parm[i] ^ dhf_mask[i];
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
188
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
189 if (j)
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
190 break;
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
191 }
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
192
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
193 return !j;
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
194 }
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
195
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
196 /***************************************************************************
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
197 *
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
198 * FUNCTION NAME: decoder_reset
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
199 *
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
200 * PURPOSE:
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
201 * resets all of the state variables for the decoder
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
202 *
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
203 * INPUT:
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
204 * None
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
205 *
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
206 * OUTPUT:
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
207 * None
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
208 *
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
209 * RETURN:
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
210 * None
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
211 *
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
212 **************************************************************************/
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
213
62
c87ccddf3fd1 libgsmefr: d_homing.c compiles
Mychaela Falconia <falcon@freecalypso.org>
parents: 53
diff changeset
214 void decoder_reset (struct EFR_decoder_state *st)
53
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
215 {
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
216 Word16 i;
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
217
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
218 /* reset all the decoder state variables */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
219 /* ------------------------------------- */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
220
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
221 /* Variable in decoder.c: */
62
c87ccddf3fd1 libgsmefr: d_homing.c compiles
Mychaela Falconia <falcon@freecalypso.org>
parents: 53
diff changeset
222 Set_zero (st->synth_buf, M);
53
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
223
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
224 /* Variables in dec_12k2.c: */
62
c87ccddf3fd1 libgsmefr: d_homing.c compiles
Mychaela Falconia <falcon@freecalypso.org>
parents: 53
diff changeset
225 Init_Decoder_12k2 (st);
53
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
226
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
227 /* Variable in agc.c: */
62
c87ccddf3fd1 libgsmefr: d_homing.c compiles
Mychaela Falconia <falcon@freecalypso.org>
parents: 53
diff changeset
228 st->past_gain = 4096;
53
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
229
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
230 /* Variables in d_gains.c: */
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
231 for (i = 0; i < 5; i++)
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
232 {
62
c87ccddf3fd1 libgsmefr: d_homing.c compiles
Mychaela Falconia <falcon@freecalypso.org>
parents: 53
diff changeset
233 st->pbuf[i] = 410; /* Error concealment */
c87ccddf3fd1 libgsmefr: d_homing.c compiles
Mychaela Falconia <falcon@freecalypso.org>
parents: 53
diff changeset
234 st->gbuf[i] = 1; /* Error concealment */
53
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
235 }
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
236
62
c87ccddf3fd1 libgsmefr: d_homing.c compiles
Mychaela Falconia <falcon@freecalypso.org>
parents: 53
diff changeset
237 st->past_gain_pit = 0; /* Error concealment */
c87ccddf3fd1 libgsmefr: d_homing.c compiles
Mychaela Falconia <falcon@freecalypso.org>
parents: 53
diff changeset
238 st->prev_gp = 4096; /* Error concealment */
c87ccddf3fd1 libgsmefr: d_homing.c compiles
Mychaela Falconia <falcon@freecalypso.org>
parents: 53
diff changeset
239 st->past_gain_code = 0; /* Error concealment */
c87ccddf3fd1 libgsmefr: d_homing.c compiles
Mychaela Falconia <falcon@freecalypso.org>
parents: 53
diff changeset
240 st->prev_gc = 1; /* Error concealment */
c87ccddf3fd1 libgsmefr: d_homing.c compiles
Mychaela Falconia <falcon@freecalypso.org>
parents: 53
diff changeset
241 st->gcode0_CN = 0; /* CNI */
c87ccddf3fd1 libgsmefr: d_homing.c compiles
Mychaela Falconia <falcon@freecalypso.org>
parents: 53
diff changeset
242 st->gain_code_old_CN = 0; /* CNI */
c87ccddf3fd1 libgsmefr: d_homing.c compiles
Mychaela Falconia <falcon@freecalypso.org>
parents: 53
diff changeset
243 st->gain_code_new_CN = 0; /* CNI */
c87ccddf3fd1 libgsmefr: d_homing.c compiles
Mychaela Falconia <falcon@freecalypso.org>
parents: 53
diff changeset
244 st->gain_code_muting_CN = 0; /* CNI */
53
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
245
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
246 for (i = 0; i < 4; i++)
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
247 {
62
c87ccddf3fd1 libgsmefr: d_homing.c compiles
Mychaela Falconia <falcon@freecalypso.org>
parents: 53
diff changeset
248 st->past_qua_en[i] = -2381; /* past quantized energies */
53
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
249 }
49dd1ac8e75b libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
250
62
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251 st->pred[0] = 44; /* MA prediction coeff */
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252 st->pred[1] = 37; /* MA prediction coeff */
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253 st->pred[2] = 22; /* MA prediction coeff */
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254 st->pred[3] = 12; /* MA prediction coeff */
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255
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256 /* Variables in d_plsf_5.c: */
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257 for (i = 0; i < M; i++)
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258 {
62
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259 st->past_r2_q[i] = 0; /* Past quantized prediction error */
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260 st->past_lsf_q[i] = mean_lsf[i]; /* Past dequantized lsfs */
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261 st->lsf_p_CN[i] = mean_lsf[i]; /* CNI */
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262 st->lsf_new_CN[i] = mean_lsf[i]; /* CNI */
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263 st->lsf_old_CN[i] = mean_lsf[i]; /* CNI */
53
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264 }
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265
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266 /* Variable in dec_lag6.c: */
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267 st->old_T0 = 40; /* Old integer lag */
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268
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269 /* Variable in preemph.c: */
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270 st->mem_pre = 0; /* Filter memory */
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271
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272 /* Variables in pstfilt2.c: */
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273 Init_Post_Filter (st);
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274
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275 return;
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276 }
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277
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278 /***************************************************************************
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279 *
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280 * FUNCTION NAME: reset_dec
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281 *
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282 * PURPOSE:
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283 * resets all of the state variables for the decoder, and for the
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284 * receive DTX and Comfort Noise.
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285 *
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286 * INPUT:
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287 * None
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288 *
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289 * OUTPUT:
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290 * None
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291 *
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292 * RETURN:
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293 * None
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294 *
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295 **************************************************************************/
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296
62
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297 void EFR_decoder_reset (struct EFR_decoder_state *st)
53
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298 {
62
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299 st->reset_flag_old = 1;
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300
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301 decoder_reset (st); /* reset all the state variables in the speech decoder*/
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302 reset_rx_dtx (st); /* reset all the receive DTX and CN state variables */
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303
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304 return;
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305 }