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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 8847c1740e78
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 ********************************************************************************
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3 **-------------------------------------------------------------------------**
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4 ** **
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5 ** GSM AMR-NB speech codec R98 Version 7.6.0 December 12, 2001 **
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6 ** R99 Version 3.3.0 **
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7 ** REL-4 Version 4.1.0 **
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8 ** **
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9 **-------------------------------------------------------------------------**
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10 ********************************************************************************
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11 *
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12 * File : vad1.h
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13 * Purpose : Voice Activity Detection (VAD) for AMR (option 1)
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14 *
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15 ********************************************************************************
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16 */
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17 #ifndef vad1_h
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18 #define vad1_h "$Id $"
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19
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20 /*
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21 ********************************************************************************
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22 * INCLUDE FILES
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23 ********************************************************************************
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24 */
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25 #include "typedef.h"
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26 #include "cnst_vad.h"
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27
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28 /*
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29 ********************************************************************************
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30 * LOCAL VARIABLES AND TABLES
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31 ********************************************************************************
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32 */
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33
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34 /*
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35 ********************************************************************************
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36 * DEFINITION OF DATA TYPES
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37 ********************************************************************************
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38 */
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39
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40 /* state variable */
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41 typedef struct {
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42
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43 Word16 bckr_est[COMPLEN]; /* background noise estimate */
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44 Word16 ave_level[COMPLEN]; /* averaged input components for stationary */
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45 /* estimation */
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46 Word16 old_level[COMPLEN]; /* input levels of the previous frame */
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47 Word16 sub_level[COMPLEN]; /* input levels calculated at the end of
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48 a frame (lookahead) */
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49 Word16 a_data5[3][2]; /* memory for the filter bank */
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50 Word16 a_data3[5]; /* memory for the filter bank */
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51
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52 Word16 burst_count; /* counts length of a speech burst */
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53 Word16 hang_count; /* hangover counter */
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54 Word16 stat_count; /* stationary counter */
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55
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56 /* Note that each of the following three variables (vadreg, pitch and tone)
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57 holds 15 flags. Each flag reserves 1 bit of the variable. The newest
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58 flag is in the bit 15 (assuming that LSB is bit 1 and MSB is bit 16). */
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59 Word16 vadreg; /* flags for intermediate VAD decisions */
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60 Word16 pitch; /* flags for pitch detection */
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61 Word16 tone; /* flags for tone detection */
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62 Word16 complex_high; /* flags for complex detection */
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63 Word16 complex_low; /* flags for complex detection */
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64
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65 Word16 oldlag_count, oldlag; /* variables for pitch detection */
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66
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67 Word16 complex_hang_count; /* complex hangover counter, used by VAD */
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68 Word16 complex_hang_timer; /* hangover initiator, used by CAD */
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69
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70 Word16 best_corr_hp; /* FIP filtered value Q15 */
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71
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72 Word16 speech_vad_decision; /* final decision */
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73 Word16 complex_warning; /* complex background warning */
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74
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75 Word16 sp_burst_count; /* counts length of a speech burst incl
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76 HO addition */
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77 Word16 corr_hp_fast; /* filtered value */
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78 } vadState1;
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79
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80 /*
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81 ********************************************************************************
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82 * DECLARATION OF PROTOTYPES
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83 ********************************************************************************
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84 */
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85
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86 void vad1_reset (vadState1 *st);
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87 /* reset of pre processing state (i.e. set state memory to zero)
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88 returns 0 on success
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89 */
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90
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91 void vad_complex_detection_update (vadState1 *st, /* i/o : State struct */
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92 Word16 best_corr_hp /* i : best Corr Q15 */
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93 );
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94
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95 void vad_tone_detection (vadState1 *st, /* i/o : State struct */
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96 Word32 t0, /* i : autocorrelation maxima */
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97 Word32 t1 /* i : energy */
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98 );
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99
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100 void vad_tone_detection_update (
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101 vadState1 *st, /* i/o : State struct */
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102 Word16 one_lag_per_frame /* i : 1 if one open-loop lag is
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103 calculated per each frame,
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104 otherwise 0 */
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105 );
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106
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107 void vad_pitch_detection (vadState1 *st, /* i/o : State struct */
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108 Word16 lags[] /* i : speech encoder open loop lags */
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109 );
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110
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111 Word16 vad1 (vadState1 *st, /* i/o : State struct */
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112 Word16 in_buf[] /* i : samples of the input frame
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113 inbuf[159] is the very last sample,
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114 incl lookahead */
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115 );
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116 #endif