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annotate libtwamr/d_plsf_3.c @ 585:3c6bf0d26ee7 default tip

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TW-TS-005 reader: fix maximum line length bug TW-TS-005 section 4.1 states: The maximum allowed length of each line is 80 characters, not including the OS-specific newline encoding. The implementation of this line length limit in the TW-TS-005 hex file reader function in the present suite was wrong, such that lines of the full maximum length could not be read. Fix it. Note that this bug affects comment lines too, not just actual RTP payloads. Neither Annex A nor Annex B features an RTP payload format that goes to the maximum of 40 bytes, but if a comment line goes to the maximum allowed length of 80 characters not including the terminating newline, the bug will be triggered, necessitating the present fix.
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 25 Feb 2025 07:49:28 +0000
parents 05a46720af0f
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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05a46720af0f libtwamr: integrate d_plsf_3.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 : d_plsf_3.c
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11 * Purpose : Decodes the LSP parameters using the received
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12 * quantization indices. 1st order MA prediction and
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13 * split by 3 vector quantization (split-VQ)
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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 /*
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19 ********************************************************************************
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20 * MODULE INCLUDE FILE AND VERSION ID
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21 ********************************************************************************
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22 */
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23 #include "namespace.h"
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24 #include "d_plsf.h"
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25
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26 /*
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27 ********************************************************************************
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28 * INCLUDE FILES
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29 ********************************************************************************
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30 */
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31 #include "typedef.h"
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32 #include "basic_op.h"
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33 #include "no_count.h"
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34 #include "lsp_lsf.h"
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35 #include "reorder.h"
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36 #include "memops.h"
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37 #include "q_plsf3_tab.h"
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38
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39 /*
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40 ********************************************************************************
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41 * LOCAL VARIABLES AND TABLES
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42 ********************************************************************************
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43 */
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44
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45 /* ALPHA -> 0.9 */
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46 /* ONE_ALPHA-> (1.0-ALPHA) */
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47
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48 #define ALPHA 29491
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49 #define ONE_ALPHA 3277
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50
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51 /*
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52 ********************************************************************************
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53 * PUBLIC PROGRAM CODE
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54 ********************************************************************************
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55 */
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56 /*************************************************************************
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57 *
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58 * FUNCTION: D_plsf_3()
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59 *
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60 * PURPOSE: Decodes the LSP parameters using the received quantization
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61 * indices.1st order MA prediction and split by 3 vector
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62 * quantization (split-VQ)
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63 *
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64 *************************************************************************/
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65
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66 void D_plsf_3(
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67 D_plsfState *st, /* i/o: State struct */
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68 enum Mode mode, /* i : coder mode */
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69 Word16 bfi, /* i : bad frame indicator (set to 1 if a */
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70 /* bad frame is received) */
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71 Word16 * indice, /* i : quantization indices of 3 submatrices, Q0 */
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72 Word16 * lsp1_q /* o : quantized 1st LSP vector, Q15 */
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73 )
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74 {
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75 Word16 i, index;
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76 const Word16 *p_cb1, *p_cb2, *p_cb3, *p_dico;
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77 Word16 temp;
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78 Word16 lsf1_r[M];
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79 Word16 lsf1_q[M];
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80
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81 test ();
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82 if (bfi != 0) /* if bad frame */
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83 {
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84 /* use the past LSFs slightly shifted towards their mean */
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85
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86 for (i = 0; i < M; i++)
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87 {
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88 /* lsfi_q[i] = ALPHA*past_lsf_q[i] + ONE_ALPHA*mean_lsf3[i]; */
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89
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90 lsf1_q[i] = add(mult(st->past_lsf_q[i], ALPHA),
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91 mult(mean_lsf3[i], ONE_ALPHA));
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92 move16 ();
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93 }
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94
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95 /* estimate past quantized residual to be used in next frame */
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96 test();
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97 if (sub(mode, MRDTX) != 0) {
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98 for (i = 0; i < M; i++) {
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99 /* temp = mean_lsf3[i] + past_r2_q[i] * PRED_FAC; */
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100
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101 temp = add(mean_lsf3[i], mult(st->past_r_q[i], pred_fac[i]));
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102
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103 st->past_r_q[i] = sub(lsf1_q[i], temp); move16 ();
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104 }
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105 } else {
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106 for (i = 0; i < M; i++) {
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107 /* temp = mean_lsf3[i] + past_r2_q[i]; */
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108
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109 temp = add(mean_lsf3[i], st->past_r_q[i]);
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110 st->past_r_q[i] = sub(lsf1_q[i], temp); move16 ();
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111 }
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112 }
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113 }
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114 else /* if good LSFs received */
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115 {
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116 test (); test ();
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117 if (sub (mode, MR475) == 0 || sub (mode, MR515) == 0)
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118 { /* MR475, MR515 */
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119 p_cb1 = dico1_lsf3; move16 ();
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120 p_cb2 = dico2_lsf3; move16 ();
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121 p_cb3 = mr515_3_lsf; move16 ();
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122 }
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123 else if (sub (mode, MR795) == 0)
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124 { /* MR795 */
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125 test();
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126 p_cb1 = mr795_1_lsf; move16 ();
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127 p_cb2 = dico2_lsf3; move16 ();
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
128 p_cb3 = dico3_lsf3; move16 ();
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
129 }
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
130 else
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
131 { /* MR59, MR67, MR74, MR102, MRDTX */
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
132 test();
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
133 p_cb1 = dico1_lsf3; move16 ();
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
134 p_cb2 = dico2_lsf3; move16 ();
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
135 p_cb3 = dico3_lsf3; move16 ();
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
136 }
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
137
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
138 /* decode prediction residuals from 3 received indices */
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
139
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
140 index = *indice++; move16 ();
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141 p_dico = &p_cb1[add(index, add(index, index))]; move16 ();
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
142 lsf1_r[0] = *p_dico++; move16 ();
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
143 lsf1_r[1] = *p_dico++; move16 ();
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
144 lsf1_r[2] = *p_dico++; move16 ();
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
145
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
146 index = *indice++; move16 ();
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
147
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
148 test (); test ();
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
149 if ((sub (mode, MR475) == 0) || (sub (mode, MR515) == 0))
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
150 { /* MR475, MR515 only using every second entry */
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
151 index = shl(index,1);
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
152 }
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
153
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
154 p_dico = &p_cb2[add(index, add(index, index))]; move16 ();
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
155 lsf1_r[3] = *p_dico++; move16 ();
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
156 lsf1_r[4] = *p_dico++; move16 ();
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
157 lsf1_r[5] = *p_dico++; move16 ();
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
158
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
159 index = *indice++; move16 ();
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
160 p_dico = &p_cb3[shl(index, 2)]; move16 ();
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
161 lsf1_r[6] = *p_dico++; move16 ();
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
162 lsf1_r[7] = *p_dico++; move16 ();
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
163 lsf1_r[8] = *p_dico++; move16 ();
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
164 lsf1_r[9] = *p_dico++; move16 ();
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
165
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
166 /* Compute quantized LSFs and update the past quantized residual */
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
167
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
168 if (sub(mode, MRDTX) != 0)
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
169 for (i = 0; i < M; i++) {
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
170 temp = add(mean_lsf3[i], mult(st->past_r_q[i], pred_fac[i]));
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
171 lsf1_q[i] = add(lsf1_r[i], temp); move16 ();
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
172 st->past_r_q[i] = lsf1_r[i]; move16 ();
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
173 }
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
174 else
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
175 for (i = 0; i < M; i++) {
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
176 temp = add(mean_lsf3[i], st->past_r_q[i]);
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
177 lsf1_q[i] = add(lsf1_r[i], temp); move16 ();
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
178 st->past_r_q[i] = lsf1_r[i]; move16 ();
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
179 }
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
180 }
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
181
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
182 /* verification that LSFs has minimum distance of LSF_GAP Hz */
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
183
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
184 Reorder_lsf(lsf1_q, LSF_GAP, M);
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
185
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
186 Copy (lsf1_q, st->past_lsf_q, M);
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
187
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
188 /* convert LSFs to the cosine domain */
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
189
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
190 Lsf_lsp(lsf1_q, lsp1_q, M);
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
191
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
192 return;
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
193 }
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
194
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
195 void Init_D_plsf_3(D_plsfState *st, /* i/o: State struct */
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
196 Word16 index /* i : past_rq_init[] index [0, 7] */)
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
197 {
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
198 Copy(&past_rq_init[index * M], st->past_r_q, M);
05a46720af0f libtwamr: integrate d_plsf_3.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
199 }