FreeCalypso > hg > gsmhr-codec-ref

annotate sp_rom.h @ 6:9cbb19619a9f default tip

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README: punctuation fix
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 20 Aug 2024 19:00:23 +0000
parents 9008dbc8ca74
children
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1 /***************************************************************************
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2 *
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3 * Purpose: Define the structure of the Global Constants
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4 *
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5 **************************************************************************/
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6
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7 #ifndef ___ROM
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8 #define ___ROM
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9
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10 #include "typedefs.h"
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11 #include "mathhalf.h"
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12 #include "mathdp31.h"
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13
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14 /*_________________________________________________________________________
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15 | |
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16 | Data Types |
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17 |_________________________________________________________________________|
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18 */
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19
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20 /* gsp0 vector quantizer */
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21 /*-----------------------*/
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22 #define GSP0_NUM_OF_TABLES 4
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23 #define GSP0_NUM 32
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24 #define GSP0_VECTOR_SIZE 5
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25
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26 extern ShortwordRom pppsrGsp0
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27 [GSP0_NUM_OF_TABLES][GSP0_NUM][GSP0_VECTOR_SIZE];
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29
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30 /* unvoiced code vectors */
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31 /*-----------------------*/
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32 #define UVCODEVEC_NUM_OF_CODE_BOOKS 2
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33 #define UVCODEVEC_NUM_OF_CODE_BITS 7
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34
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35 extern ShortwordRom pppsrUvCodeVec
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36 [UVCODEVEC_NUM_OF_CODE_BOOKS][UVCODEVEC_NUM_OF_CODE_BITS][S_LEN];
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37
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38
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39 /* voiced code vectors */
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40 /*---------------------*/
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41 #define VCDCODEVEC_NUM_OF_CODE_BOOKS 1
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42 #define VCDCODEVEC_NUM_OF_CODE_BITS 9
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43
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44 extern ShortwordRom pppsrVcdCodeVec
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45 [VCDCODEVEC_NUM_OF_CODE_BOOKS][VCDCODEVEC_NUM_OF_CODE_BITS][S_LEN];
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46
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47
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48 /* vector quantizer tables */
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49 /*-------------------------*/
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50 #define QUANT_NUM_OF_TABLES 3
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51
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52 #define QUANT1_NUM_OF_BITS 11
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53 #define QUANT1_NUM_OF_ROWS (1 << QUANT1_NUM_OF_BITS)
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54 #define QUANT1_NUM_OF_STAGES 3
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55 #define QUANT1_NUM_OF_WORDS (QUANT1_NUM_OF_ROWS*QUANT1_NUM_OF_STAGES/2)
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56
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57 #define QUANT2_NUM_OF_BITS 9
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58 #define QUANT2_NUM_OF_ROWS (1 << QUANT2_NUM_OF_BITS)
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59 #define QUANT2_NUM_OF_STAGES 3
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60 #define QUANT2_NUM_OF_WORDS (QUANT2_NUM_OF_ROWS*QUANT2_NUM_OF_STAGES/2)
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61
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62 #define QUANT3_NUM_OF_BITS 8
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63 #define QUANT3_NUM_OF_ROWS (1 << QUANT3_NUM_OF_BITS)
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64 #define QUANT3_NUM_OF_STAGES 4
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65 #define QUANT3_NUM_OF_WORDS (QUANT3_NUM_OF_ROWS*QUANT3_NUM_OF_STAGES/2)
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66
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67 extern ShortwordRom psrQuant1[QUANT1_NUM_OF_WORDS];
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68
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69 extern ShortwordRom psrQuant2[QUANT2_NUM_OF_WORDS];
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70
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71 extern ShortwordRom psrQuant3[QUANT3_NUM_OF_WORDS];
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72
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73
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74 /* lpc pre-quantizer */
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75 /*-------------------*/
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76 #define PREQ1_NUM_OF_BITS 6
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77 #define PREQ1_NUM_OF_ROWS (1 << PREQ1_NUM_OF_BITS)
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78 #define PREQ1_NUM_OF_STAGES 3
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79 #define PREQ1_NUM_OF_WORDS (PREQ1_NUM_OF_ROWS*PREQ1_NUM_OF_STAGES/2)
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80
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81 #define PREQ2_NUM_OF_BITS 5
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82 #define PREQ2_NUM_OF_ROWS (1 << PREQ2_NUM_OF_BITS)
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83 #define PREQ2_NUM_OF_STAGES 3
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84 #define PREQ2_NUM_OF_WORDS (PREQ2_NUM_OF_ROWS*PREQ2_NUM_OF_STAGES/2)
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85
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86 #define PREQ3_NUM_OF_BITS 4
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87 #define PREQ3_NUM_OF_ROWS (1 << PREQ3_NUM_OF_BITS)
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88 #define PREQ3_NUM_OF_STAGES 4
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89 #define PREQ3_NUM_OF_WORDS (PREQ3_NUM_OF_ROWS*PREQ3_NUM_OF_STAGES/2)
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90
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91 extern ShortwordRom psrPreQ1[PREQ1_NUM_OF_WORDS];
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92
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93 extern ShortwordRom psrPreQ2[PREQ2_NUM_OF_WORDS];
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94
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95 extern ShortwordRom psrPreQ3[PREQ3_NUM_OF_WORDS];
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96
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97
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98 /* size of the vq subset in the kth segment */
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99 /*------------------------------------------*/
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100 extern ShortwordRom psrQuantSz[QUANT_NUM_OF_TABLES];
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101
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102
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103 /* pre-quantizer size */
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104 /*--------------------*/
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105 extern ShortwordRom psrPreQSz[QUANT_NUM_OF_TABLES];
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106
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107
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108 /* reflection coeff scalar quantizer */
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109 /*-----------------------------------*/
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110 #define SQUANT_NUM_OF_BITS 8
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111 #define SQUANT_NUM_OF_ROWS (1 << SQUANT_NUM_OF_BITS)
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112
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113 extern ShortwordRom psrSQuant[SQUANT_NUM_OF_ROWS];
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114
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115
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116 /* index structure for LPC Vector Quantizer */
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117 /*------------------------------------------*/
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118 struct IsubLHn
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119 { /* index structure for LPC Vector
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120 * Quantizer */
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121 ShortwordRom l; /* lowest index index range
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122 * from 1..NP */
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123 ShortwordRom h; /* highest index */
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124 ShortwordRom len; /* h-l+1 */
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125 };
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126
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127
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128 extern struct IsubLHn psvqIndex[QUANT_NUM_OF_TABLES];
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129
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130
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131 /* square root of p0 table */
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132 /*-------------------------*/
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133 #define SQRTP0_NUM_OF_BITS 5
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134 #define SQRTP0_NUM_OF_ROWS (1 << SQRTP0_NUM_OF_BITS)
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135 #define SQRTP0_NUM_OF_MODES 3
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136
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137 extern ShortwordRom ppsrSqrtP0[SQRTP0_NUM_OF_MODES][SQRTP0_NUM_OF_ROWS];
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138
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139
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140 /* interpolation filter used for C and G */
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141 /*---------------------------------------*/
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142 #define CGINTFILT_MACS 6
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143
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144 extern ShortwordRom ppsrCGIntFilt[CGINTFILT_MACS][OS_FCTR];
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145
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146
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147 /* interpolation filter used pitch */
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148 /*---------------------------------*/
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149 #define PVECINTFILT_MACS 10
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150
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151 extern ShortwordRom ppsrPVecIntFilt[PVECINTFILT_MACS][OS_FCTR];
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152
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153
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154 /* fractional pitch lag table lag*OS_FCTR */
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155 /*----------------------------------------*/
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156 #define LAGTBL_NUM_OF_ROWS 256
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157
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158 extern ShortwordRom psrLagTbl[LAGTBL_NUM_OF_ROWS];
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159
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160
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161 /* R0 decision value table defines range (not the levels themselves */
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162 /*------------------------------------------------------------------*/
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163
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164 #define R0DECTBL_NUM_OF_R0BITS 5
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165 #define R0DECTBL_NUM_OF_ROWS ((1 << R0DECTBL_NUM_OF_R0BITS)*2 - 1)
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166
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167 extern ShortwordRom psrR0DecTbl[R0DECTBL_NUM_OF_ROWS];
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168
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169
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170 /* high pass filter coefficients */
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171 /*-------------------------------*/
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172 #define HPFCOEFS_NUM_OF_CODES 10
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173
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174 extern ShortwordRom psrHPFCoefs[HPFCOEFS_NUM_OF_CODES];
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175
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176
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177 /* spectral smoothing coefficients */
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178 /*---------------------------------*/
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179 #define NWCOEFS_NUM_OF_CODES 20
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180
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181 extern ShortwordRom psrNWCoefs[NWCOEFS_NUM_OF_CODES];
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182
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183
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184 /* spectral smoothing coefficients for FLAT */
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185 /*------------------------------------------*/
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186 #define FLATSSTCOEFS_NUM_OF_CODES 10
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187
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188 extern LongwordRom pL_rFlatSstCoefs[FLATSSTCOEFS_NUM_OF_CODES];
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189
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190 extern ShortwordRom psrOldCont[4];
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191 extern ShortwordRom psrNewCont[4];
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192
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193 #endif