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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 07f936338de1
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 : b_cn_cod.h
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11 * Purpose : Contains function for comfort noise generation.
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12 *
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13 ********************************************************************************
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14 */
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15 #ifndef b_cn_cod_h
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16 #define b_cn_cod_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 "typedef.h"
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24
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25 /*
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26 ********************************************************************************
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27 * DEFINITION OF DATA TYPES
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28 ********************************************************************************
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29 */
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30
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31 /*
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32 ********************************************************************************
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33 * DECLARATION OF PROTOTYPES
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34 ********************************************************************************
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35 */
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36
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37 /*************************************************************************
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38 *
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39 * FUNCTION NAME: pseudonoise
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40 *
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41 * PURPOSE: Generate a random integer value to use in comfort noise
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42 * generation. The algorithm uses polynomial x^31 + x^3 + 1
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43 * (length of PN sequence is 2^31 - 1).
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44 *
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45 * INPUTS: *shift_reg Old CN generator shift register state
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46 *
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47 *
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48 * OUTPUTS: *shift_reg Updated CN generator shift register state
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49 *
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50 * RETURN VALUE: Generated random integer value
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51 *
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52 *************************************************************************/
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53
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54 Word16 pseudonoise (
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55 Word32 *shift_reg, /* i/o : Old CN generator shift register state */
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56 Word16 no_bits /* i : Number of bits */
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57 );
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58
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59 /*************************************************************************
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60 *
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61 * FUNCTION NAME: build_CN_code
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62 *
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63 * PURPOSE: Compute the comfort noise fixed codebook excitation. The
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64 * gains of the pulses are always +/-1.
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65 *
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66 * INPUTS: *seed Old CN generator shift register state
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67 *
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68 * OUTPUTS: cod[0..39] Generated comfort noise fixed codebook vector
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69 * *seed Updated CN generator shift register state
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70 *
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71 * RETURN VALUE: none
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72 *
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73 *************************************************************************/
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74 void build_CN_code (
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75 Word32 *seed, /* i/o : Old CN generator shift register state */
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76 Word16 cod[] /* o : Generated CN fixed codebook vector */
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77 );
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78
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79 /*************************************************************************
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80 *
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81 * FUNCTION NAME: build_CN_param
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82 *
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83 * PURPOSE: Randomize the speech parameters. So that they
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84 * do not produce tonal artifacts if used by ECU.
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85 *
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86 * INPUTS: *seed Old CN generator shift register state
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87 * n_param, Number of parameters to randomize
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88 * parm_size_table,
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89 *
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90 *
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91 * OUTPUTS: parm CN Generated Parameters
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92 * *seed Updated CN generator shift register state
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93 *
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94 * RETURN VALUE: none
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95 *
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96 *************************************************************************/
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97 void build_CN_param (
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98 Word16 *seed, /* i/o : Old CN generator shift register state */
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99 const Word16 n_param, /* i : number of params */
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100 const Word16 param_size_table[], /* i : size of params */
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101 Word16 parm[] /* o : CN Generated Params*/
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102 );
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103
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104 #endif