FreeCalypso > hg > gsm-codec-lib
annotate libtwamr/dec_amr.h @ 585:3c6bf0d26ee7 default tip
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> |
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date | Tue, 25 Feb 2025 07:49:28 +0000 |
parents | 7bef001cd8b8 |
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rev | line source |
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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 : dec_amr.h |
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11 * Purpose : Speech decoder routine. |
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12 * |
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13 ***************************************************************************** |
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14 */ |
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15 #ifndef dec_amr_h |
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16 #define dec_amr_h "$Id $" |
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17 |
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18 /* |
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19 ***************************************************************************** |
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20 * INCLUDE FILES |
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21 ***************************************************************************** |
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22 */ |
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23 #include "tw_amr.h" |
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24 #include "typedef.h" |
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25 #include "cnst.h" |
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26 #include "dtx_dec.h" |
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27 #include "d_plsf.h" |
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28 #include "gc_pred.h" |
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29 #include "ec_gains.h" |
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30 #include "ph_disp.h" |
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31 #include "c_g_aver.h" |
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32 #include "bgnscd.h" |
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33 #include "lsp_avg.h" |
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34 |
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35 /* |
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36 ***************************************************************************** |
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37 * LOCAL VARIABLES AND TABLES |
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38 ***************************************************************************** |
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39 */ |
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40 /*---------------------------------------------------------------* |
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41 * Postfilter constant parameters (defined in "cnst.h") * |
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42 *---------------------------------------------------------------* |
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43 * L_FRAME : Frame size. * |
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44 * PIT_MAX : Maximum pitch lag. * |
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45 * L_INTERPOL : Length of filter for interpolation. * |
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46 * M : LPC order. * |
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47 *---------------------------------------------------------------*/ |
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48 |
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49 /* |
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50 ***************************************************************************** |
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51 * DEFINITION OF DATA TYPES |
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52 ***************************************************************************** |
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53 */ |
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54 typedef struct{ |
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55 /* Excitation vector */ |
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56 Word16 old_exc[L_SUBFR + PIT_MAX + L_INTERPOL]; |
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57 Word16 *exc; |
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58 |
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59 /* Lsp (Line spectral pairs) */ |
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60 /* Word16 lsp[M]; */ /* Used by CN codec */ |
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61 Word16 lsp_old[M]; |
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62 |
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63 /* Filter's memory */ |
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64 Word16 mem_syn[M]; |
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65 |
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66 /* pitch sharpening */ |
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67 Word16 sharp; |
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68 Word16 old_T0; |
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69 |
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70 /* Memories for bad frame handling */ |
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71 Word16 prev_bf; |
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72 Word16 prev_pdf; |
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73 Word16 state; |
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74 Word16 excEnergyHist[9]; |
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75 |
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76 /* Variable holding received ltpLag, used in background noise and BFI */ |
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77 Word16 T0_lagBuff; |
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78 |
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79 /* Variables for the source characteristic detector (SCD) */ |
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80 Word16 inBackgroundNoise; |
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81 Word16 voicedHangover; |
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82 Word16 ltpGainHistory[9]; |
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83 |
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84 Bgn_scdState background_state; |
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85 Word16 nodataSeed; |
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86 |
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87 Cb_gain_averageState Cb_gain_averState; |
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88 lsp_avgState lsp_avg_st; |
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89 |
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90 D_plsfState lsfState; |
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91 ec_gain_pitchState ec_gain_p_st; |
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92 ec_gain_codeState ec_gain_c_st; |
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93 gc_predState pred_state; |
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94 ph_dispState ph_disp_st; |
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95 dtx_decState dtxDecoderState; |
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96 } Decoder_amrState; |
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97 |
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98 |
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99 /* |
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100 ***************************************************************************** |
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101 * DECLARATION OF PROTOTYPES |
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102 ***************************************************************************** |
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103 */ |
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104 |
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105 /* |
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106 ************************************************************************** |
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107 * |
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108 * Function : Decoder_amr_reset |
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109 * Purpose : Resets state memory |
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110 * Returns : 0 on success |
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111 * |
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112 ************************************************************************** |
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113 */ |
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114 void Decoder_amr_reset (Decoder_amrState *st, Flag dtx_partial_reset); |
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115 |
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116 /* |
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117 ************************************************************************** |
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118 * |
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119 * Function : Decoder_amr |
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120 * Purpose : Speech decoder routine. |
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121 * Returns : 0 |
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122 * |
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123 ************************************************************************** |
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124 */ |
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125 int Decoder_amr ( |
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126 Decoder_amrState *st, /* i/o : State variables */ |
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127 enum Mode mode, /* i : AMR mode */ |
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128 Word16 parm[], /* i : vector of synthesis parameters |
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129 (PRM_SIZE) */ |
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130 enum RXFrameType frame_type, /* i : received frame type */ |
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131 Word16 synth[], /* o : synthesis speech (L_FRAME) */ |
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132 Word16 A_t[] /* o : decoded LP filter in 4 subframes |
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133 (AZ_SIZE) */ |
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134 ); |
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135 |
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136 #endif |