FreeCalypso > hg > gsm-codec-lib
annotate miscutil/pcm8-to-pcm16.c @ 449:2af2b5c12268
Library-versions: libtwamr is officially version 1.0.0
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Fri, 10 May 2024 01:43:05 +0000 |
parents | 8710c94df334 |
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rev | line source |
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miscutil: new program pcm8-to-pcm16
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1 /* |
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2 * This program reads an 8-bit PCM recording in either A-law or mu-law |
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3 * encoding (needs to be specified on the command line) and converts it |
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4 * to 16-bit linear PCM. Both input and output file formats are raw binary; |
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5 * the output format is robe by default or can be changed to LE via |
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6 * an additional command line argument. |
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7 * |
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8 * The expansion tables for A-law and mu-law have been generated by |
8710c94df334
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9 * developer aid programs in the ../dev directory. |
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10 */ |
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11 |
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12 #include <stdio.h> |
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13 #include <stdint.h> |
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14 #include <stdlib.h> |
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15 #include <string.h> |
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16 #include <strings.h> |
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17 |
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18 uint16_t pcma_decode_table[256] = { |
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19 60032, 60288, 59520, 59776, 61056, 61312, 60544, 60800, |
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20 57984, 58240, 57472, 57728, 59008, 59264, 58496, 58752, |
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21 62784, 62912, 62528, 62656, 63296, 63424, 63040, 63168, |
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22 61760, 61888, 61504, 61632, 62272, 62400, 62016, 62144, |
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23 43520, 44544, 41472, 42496, 47616, 48640, 45568, 46592, |
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24 35328, 36352, 33280, 34304, 39424, 40448, 37376, 38400, |
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25 54528, 55040, 53504, 54016, 56576, 57088, 55552, 56064, |
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26 50432, 50944, 49408, 49920, 52480, 52992, 51456, 51968, |
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27 65192, 65208, 65160, 65176, 65256, 65272, 65224, 65240, |
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28 65064, 65080, 65032, 65048, 65128, 65144, 65096, 65112, |
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29 65448, 65464, 65416, 65432, 65512, 65528, 65480, 65496, |
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30 65320, 65336, 65288, 65304, 65384, 65400, 65352, 65368, |
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31 64160, 64224, 64032, 64096, 64416, 64480, 64288, 64352, |
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32 63648, 63712, 63520, 63584, 63904, 63968, 63776, 63840, |
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33 64848, 64880, 64784, 64816, 64976, 65008, 64912, 64944, |
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34 64592, 64624, 64528, 64560, 64720, 64752, 64656, 64688, |
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35 5504, 5248, 6016, 5760, 4480, 4224, 4992, 4736, |
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36 7552, 7296, 8064, 7808, 6528, 6272, 7040, 6784, |
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37 2752, 2624, 3008, 2880, 2240, 2112, 2496, 2368, |
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38 3776, 3648, 4032, 3904, 3264, 3136, 3520, 3392, |
8710c94df334
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39 22016, 20992, 24064, 23040, 17920, 16896, 19968, 18944, |
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40 30208, 29184, 32256, 31232, 26112, 25088, 28160, 27136, |
8710c94df334
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41 11008, 10496, 12032, 11520, 8960, 8448, 9984, 9472, |
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42 15104, 14592, 16128, 15616, 13056, 12544, 14080, 13568, |
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43 344, 328, 376, 360, 280, 264, 312, 296, |
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44 472, 456, 504, 488, 408, 392, 440, 424, |
8710c94df334
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45 88, 72, 120, 104, 24, 8, 56, 40, |
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46 216, 200, 248, 232, 152, 136, 184, 168, |
8710c94df334
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47 1376, 1312, 1504, 1440, 1120, 1056, 1248, 1184, |
8710c94df334
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48 1888, 1824, 2016, 1952, 1632, 1568, 1760, 1696, |
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49 688, 656, 752, 720, 560, 528, 624, 592, |
8710c94df334
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50 944, 912, 1008, 976, 816, 784, 880, 848, |
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51 }; |
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52 |
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53 uint16_t pcmu_decode_table[256] = { |
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54 33412, 34436, 35460, 36484, 37508, 38532, 39556, 40580, |
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55 41604, 42628, 43652, 44676, 45700, 46724, 47748, 48772, |
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56 49540, 50052, 50564, 51076, 51588, 52100, 52612, 53124, |
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57 53636, 54148, 54660, 55172, 55684, 56196, 56708, 57220, |
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58 57604, 57860, 58116, 58372, 58628, 58884, 59140, 59396, |
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59 59652, 59908, 60164, 60420, 60676, 60932, 61188, 61444, |
8710c94df334
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60 61636, 61764, 61892, 62020, 62148, 62276, 62404, 62532, |
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61 62660, 62788, 62916, 63044, 63172, 63300, 63428, 63556, |
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62 63652, 63716, 63780, 63844, 63908, 63972, 64036, 64100, |
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Mychaela Falconia <falcon@freecalypso.org>
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63 64164, 64228, 64292, 64356, 64420, 64484, 64548, 64612, |
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64 64660, 64692, 64724, 64756, 64788, 64820, 64852, 64884, |
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65 64916, 64948, 64980, 65012, 65044, 65076, 65108, 65140, |
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66 65164, 65180, 65196, 65212, 65228, 65244, 65260, 65276, |
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67 65292, 65308, 65324, 65340, 65356, 65372, 65388, 65404, |
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68 65416, 65424, 65432, 65440, 65448, 65456, 65464, 65472, |
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69 65480, 65488, 65496, 65504, 65512, 65520, 65528, 0, |
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70 32124, 31100, 30076, 29052, 28028, 27004, 25980, 24956, |
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71 23932, 22908, 21884, 20860, 19836, 18812, 17788, 16764, |
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72 15996, 15484, 14972, 14460, 13948, 13436, 12924, 12412, |
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73 11900, 11388, 10876, 10364, 9852, 9340, 8828, 8316, |
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74 7932, 7676, 7420, 7164, 6908, 6652, 6396, 6140, |
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75 5884, 5628, 5372, 5116, 4860, 4604, 4348, 4092, |
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76 3900, 3772, 3644, 3516, 3388, 3260, 3132, 3004, |
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77 2876, 2748, 2620, 2492, 2364, 2236, 2108, 1980, |
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78 1884, 1820, 1756, 1692, 1628, 1564, 1500, 1436, |
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79 1372, 1308, 1244, 1180, 1116, 1052, 988, 924, |
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80 876, 844, 812, 780, 748, 716, 684, 652, |
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81 620, 588, 556, 524, 492, 460, 428, 396, |
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82 372, 356, 340, 324, 308, 292, 276, 260, |
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83 244, 228, 212, 196, 180, 164, 148, 132, |
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84 120, 112, 104, 96, 88, 80, 72, 64, |
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85 56, 48, 40, 32, 24, 16, 8, 0, |
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86 }; |
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87 |
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88 main(argc, argv) |
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89 char **argv; |
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90 { |
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91 uint16_t *exp_table; |
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92 int little_endian; |
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93 FILE *inf, *outf; |
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94 int inp; |
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95 unsigned out; |
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96 |
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97 if (argc < 4 || argc > 5) { |
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98 usage: fprintf(stderr, |
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99 "usage: %s alaw|ulaw input.pcm8 output.pcm16 [le]\n", |
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100 argv[0]); |
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101 exit(1); |
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102 } |
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103 if (!strcmp(argv[1], "alaw")) |
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104 exp_table = pcma_decode_table; |
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105 else if (!strcmp(argv[1], "ulaw")) |
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106 exp_table = pcmu_decode_table; |
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107 else |
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108 goto usage; |
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109 if (argc == 4) |
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110 little_endian = 0; |
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111 else { |
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112 if (strcmp(argv[4], "le")) |
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113 goto usage; |
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114 little_endian = 1; |
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115 } |
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116 inf = fopen(argv[2], "r"); |
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117 if (!inf) { |
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118 perror(argv[2]); |
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119 exit(1); |
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120 } |
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121 outf = fopen(argv[3], "w"); |
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122 if (!outf) { |
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123 perror(argv[3]); |
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124 exit(1); |
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125 } |
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126 for (;;) { |
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127 inp = getc(inf); |
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128 if (inp == EOF) |
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129 break; |
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130 out = exp_table[inp]; |
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131 if (little_endian) { |
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132 putc(out & 0xFF, outf); |
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133 putc((out >> 8) & 0xFF, outf); |
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134 } else { |
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135 putc((out >> 8) & 0xFF, outf); |
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136 putc(out & 0xFF, outf); |
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137 } |
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138 } |
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139 fclose(outf); |
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140 exit(0); |
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141 } |