| /*---------------------------------------------------------------------------* |
| * mulaw.h * |
| * * |
| * Copyright 2007, 2008 Nuance Communciations, Inc. * |
| * * |
| * Licensed under the Apache License, Version 2.0 (the 'License'); * |
| * you may not use this file except in compliance with the License. * |
| * * |
| * You may obtain a copy of the License at * |
| * http://www.apache.org/licenses/LICENSE-2.0 * |
| * * |
| * Unless required by applicable law or agreed to in writing, software * |
| * distributed under the License is distributed on an 'AS IS' BASIS, * |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * |
| * See the License for the specific language governing permissions and * |
| * limitations under the License. * |
| * * |
| *---------------------------------------------------------------------------*/ |
| |
| /* |
| ** The mu-law decoding table |
| ** Published internally by Alan Christie, Dragon UK. |
| */ |
| |
| #ifdef SET_RCSID |
| static const char mulaw_h[] = "$Id: mulaw.h,v 1.2.10.3 2007/08/31 17:44:52 dahan Exp $"; |
| #endif |
| |
| static const short u_law[256] = |
| { |
| -8031, -7775, -7519, -7263, -7007, -6751, -6495, -6239, /* u-Law Table */ |
| -5983, -5727, -5471, -5215, -4959, -4703, -4447, -4191, |
| -3999, -3871, -3743, -3615, -3487, -3359, -3231, -3103, /* To Convert */ |
| -2975, -2847, -2719, -2591, -2463, -2335, -2207, -2079, /* PEB Data to */ |
| -1983, -1919, -1855, -1791, -1727, -1663, -1599, -1535, /* Linear for */ |
| -1471, -1407, -1343, -1279, -1215, -1151, -1087, -1023, /* Subsequent */ |
| -975, -943, -911, -879, -847, -815, -783, -751, /* Processing */ |
| -719, -687, -655, -623, -591, -559, -527, -495, |
| -471, -455, -439, -423, -407, -391, -375, -359, |
| -343, -327, -311, -295, -279, -263, -247, -231, |
| -219, -211, -203, -195, -187, -179, -171, -163, |
| -155, -147, -139, -131, -123, -115, -107, -99, |
| -93, -89, -85, -81, -77, -73, -69, -65, |
| -61, -57, -53, -49, -45, -41, -37, -33, |
| -30, -28, -26, -24, -22, -20, -18, -16, |
| -14, -12, -10, -8, -6, -4, -2, 0, |
| 8031, 7775, 7519, 7263, 7007, 6751, 6495, 6239, |
| 5983, 5727, 5471, 5215, 4959, 4703, 4447, 4191, |
| 3999, 3871, 3743, 3615, 3487, 3359, 3231, 3103, |
| 2975, 2847, 2719, 2591, 2463, 2335, 2207, 2079, |
| 1983, 1919, 1855, 1791, 1727, 1663, 1599, 1535, |
| 1471, 1407, 1343, 1279, 1215, 1151, 1087, 1023, |
| 975, 943, 911, 879, 847, 815, 783, 751, |
| 719, 687, 655, 623, 591, 559, 527, 495, |
| 471, 455, 439, 423, 407, 391, 375, 359, |
| 343, 327, 311, 295, 279, 263, 247, 231, |
| 219, 211, 203, 195, 187, 179, 171, 163, |
| 155, 147, 139, 131, 123, 115, 107, 99, |
| 93, 89, 85, 81, 77, 73, 69, 65, |
| 61, 57, 53, 49, 45, 41, 37, 33, |
| 30, 28, 26, 24, 22, 20, 18, 16, |
| 14, 12, 10, 8, 6, 4, 2, 0 |
| }; |
| |
| #define MULAW_TO_LINEAR(X) u_law[(X)] |
