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annotate libtwamr/ph_disp.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 bde9f5804670
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 : ph_disp.h
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11 * Purpose : Phase dispersion of excitation signal
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12 *
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13 ********************************************************************************
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14 */
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15
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16 #ifndef ph_disp_h
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17 #define ph_disp_h "$Id $"
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18
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19 /*
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20 ********************************************************************************
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21 * INCLUDE FILES
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22 ********************************************************************************
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23 */
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24 #include "tw_amr.h"
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25 #include "typedef.h"
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26
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27 /*
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28 ********************************************************************************
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29 * LOCAL VARIABLES AND TABLES
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30 ********************************************************************************
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31 */
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32 #define PHDGAINMEMSIZE 5
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33 #define PHDTHR1LTP 9830 /* 0.6 in Q14 */
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34 #define PHDTHR2LTP 14746 /* 0.9 in Q14 */
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35 #define ONFACTPLUS1 16384 /* 2.0 in Q13 */
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36 #define ONLENGTH 2
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37 /*
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38 ********************************************************************************
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39 * DEFINITION OF DATA TYPES
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40 ********************************************************************************
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41 */
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42 typedef struct {
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43 Word16 gainMem[PHDGAINMEMSIZE];
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44 Word16 prevState;
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45 Word16 prevCbGain;
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46 Word16 lockFull;
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47 Word16 onset;
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48 } ph_dispState;
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49
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50 /*
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51 ********************************************************************************
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52 * DECLARATION OF PROTOTYPES
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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 *
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58 * Function: ph_disp_reset
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59 * Purpose: Initializes state memory
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60 *
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61 **************************************************************************
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62 */
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63 void ph_disp_reset (ph_dispState *state);
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64
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65 /*************************************************************************
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66 *
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67 * Function: ph_disp_lock
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68 * Purpose: mark phase dispersion as locked in state struct
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69 *
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70 **************************************************************************
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71 */
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72 void ph_disp_lock (ph_dispState *state);
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73
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74 /*************************************************************************
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75 *
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76 * Function: ph_disp_release
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77 * Purpose: mark phase dispersion as unlocked in state struct
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78 *
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79 **************************************************************************
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80 */
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81 void ph_disp_release (ph_dispState *state);
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82
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83 /*************************************************************************
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84 *
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85 * Function: ph_disp
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86 * Purpose: perform phase dispersion according to the specified codec
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87 * mode and computes total excitation for synthesis part
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88 * if decoder
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89 *
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90 **************************************************************************
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91 */
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92 void ph_disp (
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93 ph_dispState *state, /* i/o : State struct */
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94 enum Mode mode, /* i : codec mode */
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95 Word16 x[], /* i/o Q0 : in: LTP excitation signal */
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96 /* out: total excitation signal */
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97 Word16 cbGain, /* i Q1 : Codebook gain */
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98 Word16 ltpGain, /* i Q14 : LTP gain */
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99 Word16 inno[], /* i Q13 : Innovation vector (Q12 for 12.2) */
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100 Word16 pitch_fac, /* i Q14 : pitch factor used to scale the
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101 LTP excitation (Q13 for 12.2) */
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102 Word16 tmp_shift /* i Q0 : shift factor applied to sum of
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103 scaled LTP ex & innov. before
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104 rounding */
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105 );
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106
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107 #endif