FreeCalypso > hg > gsm-codec-lib

annotate libtwamr/ec_gains.c @ 555:62943a1ad64e

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doc/FR1-Rx-DTX-detail: grammar fix
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 11 Oct 2024 00:22:47 +0000
parents 9cbd1b5d061f
children
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9cbd1b5d061f libtwamr: integrate ec_gains.c
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1 /*
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2 ********************************************************************************
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3 *
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4 * GSM AMR-NB speech codec R98 Version 7.6.0 December 12, 2001
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5 * R99 Version 3.3.0
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6 * REL-4 Version 4.1.0
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7 *
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8 ********************************************************************************
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9 *
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10 * File : ec_gains.c
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11 * Purpose: : Error concealment for pitch and codebook gains
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12 *
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13 ********************************************************************************
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14 */
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15
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16 /*
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17 ********************************************************************************
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18 * MODULE INCLUDE FILE AND VERSION ID
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19 ********************************************************************************
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20 */
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21 #include "namespace.h"
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22 #include "ec_gains.h"
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23
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24 /*
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25 ********************************************************************************
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26 * INCLUDE FILES
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27 ********************************************************************************
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28 */
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29 #include "typedef.h"
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30 #include "basic_op.h"
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31 #include "oper_32b.h"
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32 #include "no_count.h"
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33 #include "cnst.h"
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34 #include "gmed_n.h"
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35 #include "gc_pred.h"
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36 #include "gains_tab.h"
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37
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38 /*
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39 ********************************************************************************
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40 * PUBLIC PROGRAM CODE
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41 ********************************************************************************
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42 */
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43
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44 /*
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45 **************************************************************************
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46 *
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47 * Function : ec_gain_code_reset
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48 * Purpose : Resets state memory
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49 *
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50 **************************************************************************
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51 */
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52 void ec_gain_code_reset (ec_gain_codeState *state)
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53 {
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54 Word16 i;
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55
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56 for ( i = 0; i < 5; i++)
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57 state->gbuf[i] = 1;
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58 state->past_gain_code = 0;
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59 state->prev_gc = 1;
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60 }
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61
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62 /*
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63 **************************************************************************
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64 *
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65 * Function : ec_gain_code
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66 * Purpose : conceal the codebook gain
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67 * Call this function only in BFI (instead of normal gain
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68 * decoding function)
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69 *
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70 **************************************************************************
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71 */
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72 void ec_gain_code (
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73 ec_gain_codeState *st, /* i/o : State struct */
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74 gc_predState *pred_state, /* i/o : MA predictor state */
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75 Word16 state, /* i : state of the state machine */
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76 Word16 *gain_code /* o : decoded innovation gain */
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77 )
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78 {
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79 static const Word16 cdown[7] =
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80 {
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81 32767, 32112, 32112, 32112,
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82 32112, 32112, 22937
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83 };
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84
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85 Word16 tmp;
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86 Word16 qua_ener_MR122;
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87 Word16 qua_ener;
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88
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89 /* calculate median of last five gain values */
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90 tmp = gmed_n (st->gbuf,5); move16 ();
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91
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92 /* new gain = minimum(median, past_gain) * cdown[state] */
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93 test ();
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94 if (sub (tmp, st->past_gain_code) > 0)
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95 {
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96 tmp = st->past_gain_code; move16 ();
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97 }
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98 tmp = mult (tmp, cdown[state]);
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99 *gain_code = tmp; move16 ();
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100
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101 /* update table of past quantized energies with average of
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102 * current values
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103 */
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104 gc_pred_average_limited(pred_state, &qua_ener_MR122, &qua_ener);
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105 gc_pred_update(pred_state, qua_ener_MR122, qua_ener);
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106 }
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107
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108 /*
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109 **************************************************************************
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110 *
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111 * Function : ec_gain_code_update
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112 * Purpose : update the codebook gain concealment state;
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113 * limit gain_code if the previous frame was bad
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114 * Call this function always after decoding (or concealing)
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115 * the gain
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116 *
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117 **************************************************************************
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118 */
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119 void ec_gain_code_update (
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120 ec_gain_codeState *st, /* i/o : State struct */
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121 Word16 bfi, /* i : flag: frame is bad */
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122 Word16 prev_bf, /* i : flag: previous frame was bad */
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123 Word16 *gain_code /* i/o : decoded innovation gain */
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124 )
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125 {
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126 Word16 i;
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127
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128 /* limit gain_code by previous good gain if previous frame was bad */
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129 test ();
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130 if (bfi == 0)
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131 {
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132 test ();
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133 if (prev_bf != 0)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
134 {
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
135 test ();
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
136 if (sub (*gain_code, st->prev_gc) > 0)
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
137 {
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
138 *gain_code = st->prev_gc; move16 ();
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
139 }
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
140 }
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141 st->prev_gc = *gain_code; move16 ();
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
142 }
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
143
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
144 /* update EC states: previous gain, gain buffer */
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
145 st->past_gain_code = *gain_code; move16 ();
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
146
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
147 for (i = 1; i < 5; i++)
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
148 {
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
149 st->gbuf[i - 1] = st->gbuf[i]; move16 ();
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
150 }
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
151 st->gbuf[4] = *gain_code; move16 ();
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
152
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
153 return;
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
154 }
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
155
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
156 /*
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
157 **************************************************************************
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
158 *
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
159 * Function: ec_gain_pitch_reset
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
160 * Purpose: Resets state memory
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
161 *
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
162 **************************************************************************
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
163 */
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
164 void ec_gain_pitch_reset (ec_gain_pitchState *state)
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
165 {
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
166 Word16 i;
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
167
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
168 for(i = 0; i < 5; i++)
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
169 state->pbuf[i] = 1640;
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
170 state->past_gain_pit = 0;
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
171 state->prev_gp = 16384;
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
172 }
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
173
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
174 /*
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
175 **************************************************************************
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
176 *
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
177 * Function : ec_gain_pitch
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
178 * Purpose : conceal the pitch gain
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
179 * Call this function only in BFI (instead of normal gain
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
180 * decoding function)
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
181 *
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
182 **************************************************************************
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
183 */
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
184 void ec_gain_pitch (
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
185 ec_gain_pitchState *st, /* i/o : state variables */
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
186 Word16 state, /* i : state of the state machine */
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
187 Word16 *gain_pitch /* o : pitch gain (Q14) */
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
188 )
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
189 {
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
190 static const Word16 pdown[7] =
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
191 {
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
192 32767, 32112, 32112, 26214,
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
193 9830, 6553, 6553
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
194 };
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
195
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
196 Word16 tmp;
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
197
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
198 /* calculate median of last five gains */
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
199 tmp = gmed_n (st->pbuf, 5); move16 ();
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
200
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
201 /* new gain = minimum(median, past_gain) * pdown[state] */
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
202 test ();
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
203 if (sub (tmp, st->past_gain_pit) > 0)
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
204 {
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
205 tmp = st->past_gain_pit; move16 ();
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
206 }
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
207 *gain_pitch = mult (tmp, pdown[state]);
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
208 }
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
209
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
210 /*
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
211 **************************************************************************
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
212 *
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
213 * Function : ec_gain_pitch_update
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
214 * Purpose : update the pitch gain concealment state;
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
215 * limit gain_pitch if the previous frame was bad
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
216 * Call this function always after decoding (or concealing)
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
217 * the gain
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
218 *
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
219 **************************************************************************
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
220 */
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
221 void ec_gain_pitch_update (
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
222 ec_gain_pitchState *st, /* i/o : state variables */
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
223 Word16 bfi, /* i : flag: frame is bad */
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
224 Word16 prev_bf, /* i : flag: previous frame was bad */
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
225 Word16 *gain_pitch /* i/o : pitch gain */
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
226 )
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
227 {
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
228 Word16 i;
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
229
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
230 test ();
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
231 if (bfi == 0)
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
232 {
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
233 test ();
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
234 if (prev_bf != 0)
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
235 {
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
236 test ();
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
237 if (sub (*gain_pitch, st->prev_gp) > 0)
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
238 {
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
239 *gain_pitch = st->prev_gp;
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
240 }
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
241 }
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
242 st->prev_gp = *gain_pitch; move16 ();
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
243 }
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
244
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
245 st->past_gain_pit = *gain_pitch; move16 ();
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
246
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
247 test ();
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
248 if (sub (st->past_gain_pit, 16384) > 0) /* if (st->past_gain_pit > 1.0) */
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
249 {
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
250 st->past_gain_pit = 16384; move16 ();
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
251 }
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
252 for (i = 1; i < 5; i++)
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
253 {
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
254 st->pbuf[i - 1] = st->pbuf[i]; move16 ();
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
255 }
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
256 st->pbuf[4] = st->past_gain_pit; move16 ();
9cbd1b5d061f libtwamr: integrate ec_gains.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
257 }