| /* |
| * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| /* |
| * spectrum_ar_model_tables.c |
| * |
| * This file contains tables with AR coefficients, Gain coefficients |
| * and cosine tables. |
| * |
| */ |
| |
| #include "spectrum_ar_model_tables.h" |
| #include "settings.h" |
| |
| /********************* AR Coefficient Tables ************************/ |
| |
| /* cdf for quantized reflection coefficient 1 */ |
| const WebRtc_UWord16 WebRtcIsacfix_kRc1Cdf[12] = { |
| 0, 2, 4, 129, 7707, 57485, 65495, 65527, 65529, 65531, |
| 65533, 65535 |
| }; |
| |
| /* cdf for quantized reflection coefficient 2 */ |
| const WebRtc_UWord16 WebRtcIsacfix_kRc2Cdf[12] = { |
| 0, 2, 4, 7, 531, 25298, 64525, 65526, 65529, 65531, |
| 65533, 65535 |
| }; |
| |
| /* cdf for quantized reflection coefficient 3 */ |
| const WebRtc_UWord16 WebRtcIsacfix_kRc3Cdf[12] = { |
| 0, 2, 4, 6, 620, 22898, 64843, 65527, 65529, 65531, |
| 65533, 65535 |
| }; |
| |
| /* cdf for quantized reflection coefficient 4 */ |
| const WebRtc_UWord16 WebRtcIsacfix_kRc4Cdf[12] = { |
| 0, 2, 4, 6, 35, 10034, 60733, 65506, 65529, 65531, |
| 65533, 65535 |
| }; |
| |
| /* cdf for quantized reflection coefficient 5 */ |
| const WebRtc_UWord16 WebRtcIsacfix_kRc5Cdf[12] = { |
| 0, 2, 4, 6, 36, 7567, 56727, 65385, 65529, 65531, |
| 65533, 65535 |
| }; |
| |
| /* cdf for quantized reflection coefficient 6 */ |
| const WebRtc_UWord16 WebRtcIsacfix_kRc6Cdf[12] = { |
| 0, 2, 4, 6, 14, 6579, 57360, 65409, 65529, 65531, |
| 65533, 65535 |
| }; |
| |
| /* representation levels for quantized reflection coefficient 1 */ |
| const WebRtc_Word16 WebRtcIsacfix_kRc1Levels[11] = { |
| -32104, -29007, -23202, -15496, -9279, -2577, 5934, 17535, 24512, 29503, 32104 |
| }; |
| |
| /* representation levels for quantized reflection coefficient 2 */ |
| const WebRtc_Word16 WebRtcIsacfix_kRc2Levels[11] = { |
| -32104, -29503, -23494, -15261, -7309, -1399, 6158, 16381, 24512, 29503, 32104 |
| }; |
| |
| /* representation levels for quantized reflection coefficient 3 */ |
| const WebRtc_Word16 WebRtcIsacfix_kRc3Levels[11] = { |
| -32104, -29503, -23157, -15186, -7347, -1359, 5829, 17535, 24512, 29503, 32104 |
| }; |
| |
| /* representation levels for quantized reflection coefficient 4 */ |
| const WebRtc_Word16 WebRtcIsacfix_kRc4Levels[11] = { |
| -32104, -29503, -24512, -15362, -6665, -342, 6596, 14585, 24512, 29503, 32104 |
| }; |
| |
| /* representation levels for quantized reflection coefficient 5 */ |
| const WebRtc_Word16 WebRtcIsacfix_kRc5Levels[11] = { |
| -32104, -29503, -24512, -15005, -6564, -106, 7123, 14920, 24512, 29503, 32104 |
| }; |
| |
| /* representation levels for quantized reflection coefficient 6 */ |
| const WebRtc_Word16 WebRtcIsacfix_kRc6Levels[11] = { |
| -32104, -29503, -24512, -15096, -6656, -37, 7036, 14847, 24512, 29503, 32104 |
| }; |
| |
| /* quantization boundary levels for reflection coefficients */ |
| const WebRtc_Word16 WebRtcIsacfix_kRcBound[12] = { |
| -32768, -31441, -27566, -21458, -13612, -4663, |
| 4663, 13612, 21458, 27566, 31441, 32767 |
| }; |
| |
| /* initial index for AR reflection coefficient quantizer and cdf table search */ |
| const WebRtc_UWord16 WebRtcIsacfix_kRcInitInd[6] = { |
| 5, 5, 5, 5, 5, 5 |
| }; |
| |
| /* pointers to AR cdf tables */ |
| const WebRtc_UWord16 *WebRtcIsacfix_kRcCdfPtr[AR_ORDER] = { |
| WebRtcIsacfix_kRc1Cdf, |
| WebRtcIsacfix_kRc2Cdf, |
| WebRtcIsacfix_kRc3Cdf, |
| WebRtcIsacfix_kRc4Cdf, |
| WebRtcIsacfix_kRc5Cdf, |
| WebRtcIsacfix_kRc6Cdf |
| }; |
| |
| /* pointers to AR representation levels tables */ |
| const WebRtc_Word16 *WebRtcIsacfix_kRcLevPtr[AR_ORDER] = { |
| WebRtcIsacfix_kRc1Levels, |
| WebRtcIsacfix_kRc2Levels, |
| WebRtcIsacfix_kRc3Levels, |
| WebRtcIsacfix_kRc4Levels, |
| WebRtcIsacfix_kRc5Levels, |
| WebRtcIsacfix_kRc6Levels |
| }; |
| |
| |
| /******************** GAIN Coefficient Tables ***********************/ |
| |
| /* cdf for Gain coefficient */ |
| const WebRtc_UWord16 WebRtcIsacfix_kGainCdf[19] = { |
| 0, 2, 4, 6, 8, 10, 12, 14, 16, 1172, |
| 11119, 29411, 51699, 64445, 65527, 65529, 65531, 65533, 65535 |
| }; |
| |
| /* representation levels for quantized squared Gain coefficient */ |
| const WebRtc_Word32 WebRtcIsacfix_kGain2Lev[18] = { |
| 128, 128, 128, 128, 128, 215, 364, 709, 1268, |
| 1960, 3405, 6078, 11286, 17827, 51918, 134498, 487432, 2048000 |
| }; |
| |
| /* quantization boundary levels for squared Gain coefficient */ |
| const WebRtc_Word32 WebRtcIsacfix_kGain2Bound[19] = { |
| 0, 21, 35, 59, 99, 166, 280, 475, 815, 1414, |
| 2495, 4505, 8397, 16405, 34431, 81359, 240497, 921600, 0x7FFFFFFF |
| }; |
| |
| /* pointers to Gain cdf table */ |
| const WebRtc_UWord16 *WebRtcIsacfix_kGainPtr[1] = { |
| WebRtcIsacfix_kGainCdf |
| }; |
| |
| /* gain initial index for gain quantizer and cdf table search */ |
| const WebRtc_UWord16 WebRtcIsacfix_kGainInitInd[1] = { |
| 11 |
| }; |
| |
| |
| /************************* Cosine Tables ****************************/ |
| |
| /* cosine table */ |
| const WebRtc_Word16 WebRtcIsacfix_kCos[6][60] = { |
| { 512, 512, 511, 510, 508, 507, 505, 502, 499, 496, |
| 493, 489, 485, 480, 476, 470, 465, 459, 453, 447, |
| 440, 433, 426, 418, 410, 402, 394, 385, 376, 367, |
| 357, 348, 338, 327, 317, 306, 295, 284, 273, 262, |
| 250, 238, 226, 214, 202, 190, 177, 165, 152, 139, |
| 126, 113, 100, 87, 73, 60, 47, 33, 20, 7 }, |
| { 512, 510, 508, 503, 498, 491, 483, 473, 462, 450, |
| 437, 422, 406, 389, 371, 352, 333, 312, 290, 268, |
| 244, 220, 196, 171, 145, 120, 93, 67, 40, 13, |
| -13, -40, -67, -93, -120, -145, -171, -196, -220, -244, |
| -268, -290, -312, -333, -352, -371, -389, -406, -422, -437, |
| -450, -462, -473, -483, -491, -498, -503, -508, -510, -512 }, |
| { 512, 508, 502, 493, 480, 465, 447, 426, 402, 376, |
| 348, 317, 284, 250, 214, 177, 139, 100, 60, 20, |
| -20, -60, -100, -139, -177, -214, -250, -284, -317, -348, |
| -376, -402, -426, -447, -465, -480, -493, -502, -508, -512, |
| -512, -508, -502, -493, -480, -465, -447, -426, -402, -376, |
| -348, -317, -284, -250, -214, -177, -139, -100, -60, -20 }, |
| { 511, 506, 495, 478, 456, 429, 398, 362, 322, 279, |
| 232, 183, 133, 80, 27, -27, -80, -133, -183, -232, |
| -279, -322, -362, -398, -429, -456, -478, -495, -506, -511, |
| -511, -506, -495, -478, -456, -429, -398, -362, -322, -279, |
| -232, -183, -133, -80, -27, 27, 80, 133, 183, 232, |
| 279, 322, 362, 398, 429, 456, 478, 495, 506, 511 }, |
| { 511, 502, 485, 459, 426, 385, 338, 284, 226, 165, |
| 100, 33, -33, -100, -165, -226, -284, -338, -385, -426, |
| -459, -485, -502, -511, -511, -502, -485, -459, -426, -385, |
| -338, -284, -226, -165, -100, -33, 33, 100, 165, 226, |
| 284, 338, 385, 426, 459, 485, 502, 511, 511, 502, |
| 485, 459, 426, 385, 338, 284, 226, 165, 100, 33 }, |
| { 510, 498, 473, 437, 389, 333, 268, 196, 120, 40, |
| -40, -120, -196, -268, -333, -389, -437, -473, -498, -510, |
| -510, -498, -473, -437, -389, -333, -268, -196, -120, -40, |
| 40, 120, 196, 268, 333, 389, 437, 473, 498, 510, |
| 510, 498, 473, 437, 389, 333, 268, 196, 120, 40, |
| -40, -120, -196, -268, -333, -389, -437, -473, -498, -510 } |
| }; |
