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annotate libtwamr/dtx_enc.h @ 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 5a1d18542f8a
children
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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 : dtx_enc.h
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11 * Purpose : DTX mode computation of SID parameters
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12 *
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13 ********************************************************************************
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14 */
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15 #ifndef dtx_enc_h
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16 #define dtx_enc_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 "q_plsf.h"
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27 #include "gc_pred.h"
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28 #include "dtx_common.h"
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29
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30 /*
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31 ********************************************************************************
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32 * DEFINITION OF DATA TYPES
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33 ********************************************************************************
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34 */
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35 typedef struct {
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36 Word16 lsp_hist[M * DTX_HIST_SIZE];
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37 Word16 log_en_hist[DTX_HIST_SIZE];
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38 Word16 hist_ptr;
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39 Word16 log_en_index;
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40 Word16 init_lsf_vq_index;
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41 Word16 lsp_index[3];
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42
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43 /* DTX handler stuff */
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44 Word16 dtxHangoverCount;
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45 Word16 decAnaElapsedCount;
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46
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47 } dtx_encState;
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48 /*
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49 ********************************************************************************
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50 * DECLARATION OF PROTOTYPES
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51 ********************************************************************************
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52 */
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53
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54 /*
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55 **************************************************************************
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56 *
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57 * Function : dtx_enc_reset
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58 * Purpose : Resets state memory
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59 * Returns : 0 on success
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60 *
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61 **************************************************************************
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62 */
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63 void dtx_enc_reset (dtx_encState *st);
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64
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65 /*
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66 **************************************************************************
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67 *
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68 * Function : dtx_enc
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69 * Purpose :
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70 * Description :
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71 *
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72 **************************************************************************
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73 */
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74 int dtx_enc(dtx_encState *st, /* i/o : State struct */
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75 Word16 computeSidFlag, /* i : compute SID */
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76 Q_plsfState *qSt, /* i/o : Qunatizer state struct */
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77 gc_predState* predState, /* i/o : State struct */
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78 Word16 **anap /* o : analysis parameters */
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79 );
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80
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81 /*
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82 **************************************************************************
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83 *
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84 * Function : dtx_buffer
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85 * Purpose : handles the DTX buffer
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86 *
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87 **************************************************************************
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88 */
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89 int dtx_buffer(dtx_encState *st, /* i/o : State struct */
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90 Word16 lsp_new[], /* i : LSP vector */
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91 Word16 speech[] /* i : speech samples */
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92 );
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93
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94 /*
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95 **************************************************************************
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96 *
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97 * Function : tx_dtx_handler
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98 * Purpose : adds extra speech hangover to analyze speech on the decoding side.
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99 * Description : returns 1 when a new SID analysis may be made
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100 * otherwise it adds the appropriate hangover after a sequence
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101 * with out updates of SID parameters .
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102 *
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103 **************************************************************************
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104 */
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105 Word16 tx_dtx_handler(dtx_encState *st, /* i/o : State struct */
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106 Word16 vadFlag, /* i : vad control variable */
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107 enum Mode *usedMode /* o : mode changed or not */
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108 );
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109
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110 #endif