1 /* 2 * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 /* 12 * spectrum_ar_model_tables.h 13 * 14 * This file contains definitions of tables with AR coefficients, 15 * Gain coefficients and cosine tables. 16 * 17 */ 18 19 #ifndef MODULES_AUDIO_CODING_CODECS_ISAC_FIX_SOURCE_SPECTRUM_AR_MODEL_TABLES_H_ 20 #define MODULES_AUDIO_CODING_CODECS_ISAC_FIX_SOURCE_SPECTRUM_AR_MODEL_TABLES_H_ 21 22 #include <stdint.h> 23 24 #include "modules/audio_coding/codecs/isac/fix/source/settings.h" 25 26 /********************* AR Coefficient Tables ************************/ 27 /* cdf for quantized reflection coefficient 1 */ 28 extern const uint16_t WebRtcIsacfix_kRc1Cdf[12]; 29 30 /* cdf for quantized reflection coefficient 2 */ 31 extern const uint16_t WebRtcIsacfix_kRc2Cdf[12]; 32 33 /* cdf for quantized reflection coefficient 3 */ 34 extern const uint16_t WebRtcIsacfix_kRc3Cdf[12]; 35 36 /* cdf for quantized reflection coefficient 4 */ 37 extern const uint16_t WebRtcIsacfix_kRc4Cdf[12]; 38 39 /* cdf for quantized reflection coefficient 5 */ 40 extern const uint16_t WebRtcIsacfix_kRc5Cdf[12]; 41 42 /* cdf for quantized reflection coefficient 6 */ 43 extern const uint16_t WebRtcIsacfix_kRc6Cdf[12]; 44 45 /* representation levels for quantized reflection coefficient 1 */ 46 extern const int16_t WebRtcIsacfix_kRc1Levels[11]; 47 48 /* representation levels for quantized reflection coefficient 2 */ 49 extern const int16_t WebRtcIsacfix_kRc2Levels[11]; 50 51 /* representation levels for quantized reflection coefficient 3 */ 52 extern const int16_t WebRtcIsacfix_kRc3Levels[11]; 53 54 /* representation levels for quantized reflection coefficient 4 */ 55 extern const int16_t WebRtcIsacfix_kRc4Levels[11]; 56 57 /* representation levels for quantized reflection coefficient 5 */ 58 extern const int16_t WebRtcIsacfix_kRc5Levels[11]; 59 60 /* representation levels for quantized reflection coefficient 6 */ 61 extern const int16_t WebRtcIsacfix_kRc6Levels[11]; 62 63 /* quantization boundary levels for reflection coefficients */ 64 extern const int16_t WebRtcIsacfix_kRcBound[12]; 65 66 /* initial indices for AR reflection coefficient quantizer and cdf table search 67 */ 68 extern const uint16_t WebRtcIsacfix_kRcInitInd[AR_ORDER]; 69 70 /* pointers to AR cdf tables */ 71 extern const uint16_t* WebRtcIsacfix_kRcCdfPtr[AR_ORDER]; 72 73 /* pointers to AR representation levels tables */ 74 extern const int16_t* WebRtcIsacfix_kRcLevPtr[AR_ORDER]; 75 76 /******************** GAIN Coefficient Tables ***********************/ 77 /* cdf for Gain coefficient */ 78 extern const uint16_t WebRtcIsacfix_kGainCdf[19]; 79 80 /* representation levels for quantized Gain coefficient */ 81 extern const int32_t WebRtcIsacfix_kGain2Lev[18]; 82 83 /* squared quantization boundary levels for Gain coefficient */ 84 extern const int32_t WebRtcIsacfix_kGain2Bound[19]; 85 86 /* pointer to Gain cdf table */ 87 extern const uint16_t* WebRtcIsacfix_kGainPtr[1]; 88 89 /* Gain initial index for gain quantizer and cdf table search */ 90 extern const uint16_t WebRtcIsacfix_kGainInitInd[1]; 91 92 /************************* Cosine Tables ****************************/ 93 /* Cosine table */ 94 extern const int16_t WebRtcIsacfix_kCos[6][60]; 95 96 #endif /* MODULES_AUDIO_CODING_CODECS_ISAC_FIX_SOURCE_SPECTRUM_AR_MODEL_TABLES_H_ \ 97 */ 98