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/*
* 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.
*/
#include "modules/audio_coding/codecs/isac/main/source/spectrum_ar_model_tables.h"
#include "modules/audio_coding/codecs/isac/main/source/settings.h"
/********************* AR Coefficient Tables ************************/
/* cdf for quantized reflection coefficient 1 */
const uint16_t WebRtcIsac_kQArRc1Cdf[NUM_AR_RC_QUANT_BAUNDARY] = {
0, 2, 4, 129, 7707, 57485, 65495, 65527, 65529, 65531,
65533, 65535};
/* cdf for quantized reflection coefficient 2 */
const uint16_t WebRtcIsac_kQArRc2Cdf[NUM_AR_RC_QUANT_BAUNDARY] = {
0, 2, 4, 7, 531, 25298, 64525, 65526, 65529, 65531,
65533, 65535};
/* cdf for quantized reflection coefficient 3 */
const uint16_t WebRtcIsac_kQArRc3Cdf[NUM_AR_RC_QUANT_BAUNDARY] = {
0, 2, 4, 6, 620, 22898, 64843, 65527, 65529, 65531,
65533, 65535};
/* cdf for quantized reflection coefficient 4 */
const uint16_t WebRtcIsac_kQArRc4Cdf[NUM_AR_RC_QUANT_BAUNDARY] = {
0, 2, 4, 6, 35, 10034, 60733, 65506, 65529, 65531,
65533, 65535};
/* cdf for quantized reflection coefficient 5 */
const uint16_t WebRtcIsac_kQArRc5Cdf[NUM_AR_RC_QUANT_BAUNDARY] = {
0, 2, 4, 6, 36, 7567, 56727, 65385, 65529, 65531,
65533, 65535};
/* cdf for quantized reflection coefficient 6 */
const uint16_t WebRtcIsac_kQArRc6Cdf[NUM_AR_RC_QUANT_BAUNDARY] = {
0, 2, 4, 6, 14, 6579, 57360, 65409, 65529, 65531,
65533, 65535};
/* representation levels for quantized reflection coefficient 1 */
const int16_t WebRtcIsac_kQArRc1Levels[NUM_AR_RC_QUANT_BAUNDARY - 1] = {
-32104, -29007, -23202, -15496, -9279, -2577, 5934, 17535, 24512, 29503, 32104
};
/* representation levels for quantized reflection coefficient 2 */
const int16_t WebRtcIsac_kQArRc2Levels[NUM_AR_RC_QUANT_BAUNDARY - 1] = {
-32104, -29503, -23494, -15261, -7309, -1399, 6158, 16381, 24512, 29503, 32104
};
/* representation levels for quantized reflection coefficient 3 */
const int16_t WebRtcIsac_kQArRc3Levels[NUM_AR_RC_QUANT_BAUNDARY - 1] = {
-32104, -29503, -23157, -15186, -7347, -1359, 5829, 17535, 24512, 29503, 32104
};
/* representation levels for quantized reflection coefficient 4 */
const int16_t WebRtcIsac_kQArRc4Levels[NUM_AR_RC_QUANT_BAUNDARY - 1] = {
-32104, -29503, -24512, -15362, -6665, -342, 6596, 14585, 24512, 29503, 32104
};
/* representation levels for quantized reflection coefficient 5 */
const int16_t WebRtcIsac_kQArRc5Levels[NUM_AR_RC_QUANT_BAUNDARY - 1] = {
-32104, -29503, -24512, -15005, -6564, -106, 7123, 14920, 24512, 29503, 32104
};
/* representation levels for quantized reflection coefficient 6 */
const int16_t WebRtcIsac_kQArRc6Levels[NUM_AR_RC_QUANT_BAUNDARY - 1] = {
-32104, -29503, -24512, -15096, -6656, -37, 7036, 14847, 24512, 29503, 32104
};
/* quantization boundary levels for reflection coefficients */
const int16_t WebRtcIsac_kQArBoundaryLevels[NUM_AR_RC_QUANT_BAUNDARY] = {
-32768, -31441, -27566, -21458, -13612, -4663, 4663, 13612, 21458, 27566, 31441,
32767
};
/* initial index for AR reflection coefficient quantizer and cdf table search */
const uint16_t WebRtcIsac_kQArRcInitIndex[6] = {
5, 5, 5, 5, 5, 5};
/* pointers to AR cdf tables */
const uint16_t *WebRtcIsac_kQArRcCdfPtr[AR_ORDER] = {
WebRtcIsac_kQArRc1Cdf, WebRtcIsac_kQArRc2Cdf, WebRtcIsac_kQArRc3Cdf,
WebRtcIsac_kQArRc4Cdf, WebRtcIsac_kQArRc5Cdf, WebRtcIsac_kQArRc6Cdf
};
/* pointers to AR representation levels tables */
const int16_t *WebRtcIsac_kQArRcLevelsPtr[AR_ORDER] = {
WebRtcIsac_kQArRc1Levels, WebRtcIsac_kQArRc2Levels, WebRtcIsac_kQArRc3Levels,
WebRtcIsac_kQArRc4Levels, WebRtcIsac_kQArRc5Levels, WebRtcIsac_kQArRc6Levels
};
/******************** GAIN Coefficient Tables ***********************/
/* cdf for Gain coefficient */
const uint16_t WebRtcIsac_kQGainCdf[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 int32_t WebRtcIsac_kQGain2Levels[18] = {
// 17, 28, 46, 76, 128, 215, 364, 709, 1268, 1960, 3405, 6078, 11286, 17827, 51918, 134498, 487432, 2048000};
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 int32_t WebRtcIsac_kQGain2BoundaryLevels[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 uint16_t *WebRtcIsac_kQGainCdf_ptr[1] = {WebRtcIsac_kQGainCdf};
/* Gain initial index for gain quantizer and cdf table search */
const uint16_t WebRtcIsac_kQGainInitIndex[1] = {11};
/************************* Cosine Tables ****************************/
/* Cosine table */
const int16_t WebRtcIsac_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}
};
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