FreeCalypso > hg > gsmhr-codec-ref

annotate vad.h @ 0:9008dbc8ca74

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import original C code from GSM 06.06
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 14 Jun 2024 23:27:16 +0000
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children
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0
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
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1 #ifndef __VAD
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2 #define __VAD
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3
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4 #include "typedefs.h"
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5
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6
9008dbc8ca74 import original C code from GSM 06.06
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7 /*_________________________________________________________________________
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8 | |
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9 | Function Prototypes |
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10 |_________________________________________________________________________|
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11 */
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12
9008dbc8ca74 import original C code from GSM 06.06
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13 void vad_reset(void);
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14
9008dbc8ca74 import original C code from GSM 06.06
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15 void vad_algorithm
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16 (
9008dbc8ca74 import original C code from GSM 06.06
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17 Longword pL_acf[9],
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18 Shortword swScaleAcf,
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19 Shortword pswRc[4],
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20 Shortword swPtch,
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21 Shortword *pswVadFlag
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22 );
9008dbc8ca74 import original C code from GSM 06.06
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23
9008dbc8ca74 import original C code from GSM 06.06
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24 void energy_computation
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25 (
9008dbc8ca74 import original C code from GSM 06.06
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26 Longword pL_acf[],
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27 Shortword swScaleAcf,
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28 Shortword pswRvad[],
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29 Shortword swNormRvad,
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30 Shortword *pswM_pvad,
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31 Shortword *pswE_pvad,
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32 Shortword *pswM_acf0,
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33 Shortword *pswE_acf0
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34 );
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35
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36
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
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37 void average_acf
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38 (
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39 Longword pL_acf[],
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40 Shortword swScaleAcf,
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41 Longword pL_av0[],
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42 Longword pL_av1[]
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43 );
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44
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45 void predictor_values
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46 (
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47 Longword pL_av1[],
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48 Shortword pswRav1[],
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49 Shortword *pswNormRav1
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50 );
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51
9008dbc8ca74 import original C code from GSM 06.06
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52 void schur_recursion
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53 (
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54 Longword pL_av1[],
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55 Shortword pswVpar[]
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56 );
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57
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58 void step_up
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59 (
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60 Shortword swNp,
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61 Shortword pswVpar[],
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62 Shortword pswAav1[]
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63 );
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64
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65 void compute_rav1
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66 (
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67 Shortword pswAav1[],
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68 Shortword pswRav1[],
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69 Shortword *pswNormRav1
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70 );
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71
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72 void spectral_comparison
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73 (
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74 Shortword pswRav1[],
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75 Shortword swNormRav1,
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76 Longword pL_av0[],
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77 Shortword *pswStat
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78 );
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79
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80 void tone_detection
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81 (
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82 Shortword pswRc[4],
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83 Shortword *pswTone
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84 );
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85
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86
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87 void threshold_adaptation
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88 (
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89 Shortword swStat,
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90 Shortword swPtch,
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91 Shortword swTone,
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92 Shortword pswRav1[],
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93 Shortword swNormRav1,
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94 Shortword swM_pvad,
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95 Shortword swE_pvad,
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96 Shortword swM_acf0,
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97 Shortword swE_acf0,
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98 Shortword pswRvad[],
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99 Shortword *pswNormRvad,
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100 Shortword *pswM_thvad,
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101 Shortword *pswE_thvad
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102 );
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103
9008dbc8ca74 import original C code from GSM 06.06
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104 void vad_decision
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105 (
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106 Shortword swM_pvad,
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107 Shortword swE_pvad,
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108 Shortword swM_thvad,
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109 Shortword swE_thvad,
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110 Shortword *pswVvad
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111 );
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112
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113 void vad_hangover
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114 (
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115 Shortword swVvad,
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116 Shortword *pswVadFlag
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117 );
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118
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119 void periodicity_update
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120 (
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121 Shortword pswLags[4],
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122 Shortword *pswPtch
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123 );
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124
9008dbc8ca74 import original C code from GSM 06.06
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125 #endif