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91 lines
4.8 KiB
91 lines
4.8 KiB
//==========================================================================;
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//
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// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
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// KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
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// PURPOSE.
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//
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// Copyright (C) Microsoft Corporation, 1997 - 1999 All Rights Reserved.
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//
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//--------------------------------------------------------------------------;
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//
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// g711.h
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//
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// Description:
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// This file contains encode and decode tables for
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// CCITT Rec. G.711 (u-law).
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//
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//==========================================================================;
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const short UlawToPCM16Table[256] =
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{
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-32124, -31100, -30076, -29052, -28028, -27004, -25980, -24956,
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-23932, -22908, -21884, -20860, -19836, -18812, -17788, -16764,
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-15996, -15484, -14972, -14460, -13948, -13436, -12924, -12412,
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-11900, -11388, -10876, -10364, -9852, -9340, -8828, -8316,
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-7932, -7676, -7420, -7164, -6908, -6652, -6396, -6140,
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-5884, -5628, -5372, -5116, -4860, -4604, -4348, -4092,
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-3900, -3772, -3644, -3516, -3388, -3260, -3132, -3004,
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-2876, -2748, -2620, -2492, -2364, -2236, -2108, -1980,
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-1884, -1820, -1756, -1692, -1628, -1564, -1500, -1436,
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-1372, -1308, -1244, -1180, -1116, -1052, -988, -924,
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-876, -844, -812, -780, -748, -716, -684, -652,
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-620, -588, -556, -524, -492, -460, -428, -396,
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-372, -356, -340, -324, -308, -292, -276, -260,
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-244, -228, -212, -196, -180, -164, -148, -132,
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-120, -112, -104, -96, -88, -80, -72, -64,
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-56, -48, -40, -32, -24, -16, -8, 0,
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32124, 31100, 30076, 29052, 28028, 27004, 25980, 24956,
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23932, 22908, 21884, 20860, 19836, 18812, 17788, 16764,
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15996, 15484, 14972, 14460, 13948, 13436, 12924, 12412,
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11900, 11388, 10876, 10364, 9852, 9340, 8828, 8316,
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7932, 7676, 7420, 7164, 6908, 6652, 6396, 6140,
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5884, 5628, 5372, 5116, 4860, 4604, 4348, 4092,
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3900, 3772, 3644, 3516, 3388, 3260, 3132, 3004,
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2876, 2748, 2620, 2492, 2364, 2236, 2108, 1980,
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1884, 1820, 1756, 1692, 1628, 1564, 1500, 1436,
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1372, 1308, 1244, 1180, 1116, 1052, 988, 924,
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876, 844, 812, 780, 748, 716, 684, 652,
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620, 588, 556, 524, 492, 460, 428, 396,
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372, 356, 340, 324, 308, 292, 276, 260,
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244, 228, 212, 196, 180, 164, 148, 132,
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120, 112, 104, 96, 88, 80, 72, 64,
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56, 48, 40, 32, 24, 16, 8, 0,
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};
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const BYTE UlawToPCM8Table[256] =
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{
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3, 7, 11, 15, 19, 23, 27, 31,
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35, 39, 43, 47, 51, 55, 59, 63,
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66, 68, 70, 72, 74, 76, 78, 80,
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82, 84, 86, 88, 90, 92, 94, 96,
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97, 98, 99, 100, 101, 102, 103, 104,
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105, 106, 107, 108, 109, 110, 111, 112,
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113, 114, 114, 115, 115, 116, 116, 117,
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117, 118, 118, 119, 119, 120, 120, 121,
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121, 121, 122, 122, 122, 122, 123, 123,
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123, 123, 124, 124, 124, 124, 125, 125,
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125, 125, 125, 125, 126, 126, 126, 126,
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126, 126, 126, 126, 127, 127, 127, 127,
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127, 127, 127, 127, 127, 127, 127, 127,
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128, 128, 128, 128, 128, 128, 128, 128,
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128, 128, 128, 128, 128, 128, 128, 128,
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128, 128, 128, 128, 128, 128, 128, 128,
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253, 249, 245, 241, 237, 233, 229, 225,
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221, 217, 213, 209, 205, 201, 197, 193,
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190, 188, 186, 184, 182, 180, 178, 176,
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174, 172, 170, 168, 166, 164, 162, 160,
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159, 158, 157, 156, 155, 154, 153, 152,
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151, 150, 149, 148, 147, 146, 145, 144,
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143, 142, 142, 141, 141, 140, 140, 139,
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139, 138, 138, 137, 137, 136, 136, 135,
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135, 135, 134, 134, 134, 134, 133, 133,
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133, 133, 132, 132, 132, 132, 131, 131,
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131, 131, 131, 131, 130, 130, 130, 130,
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130, 130, 130, 130, 129, 129, 129, 129,
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129, 129, 129, 129, 129, 129, 129, 129,
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128, 128, 128, 128, 128, 128, 128, 128,
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128, 128, 128, 128, 128, 128, 128, 128,
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128, 128, 128, 128, 128, 128, 128, 128,
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};
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