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/*
* Copyright (c) 2012 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.
*/
/*
* lpc_tables.h
*
* header file for coding tables for the LPC coefficients
*
*/
#ifndef MODULES_AUDIO_CODING_CODECS_ISAC_MAIN_SOURCE_LPC_TABLES_H_
#define MODULES_AUDIO_CODING_CODECS_ISAC_MAIN_SOURCE_LPC_TABLES_H_
#include "modules/audio_coding/codecs/isac/main/source/settings.h"
#include "modules/audio_coding/codecs/isac/main/source/structs.h"
#define KLT_STEPSIZE 1.00000000
#define KLT_NUM_AVG_GAIN 0
#define KLT_NUM_AVG_SHAPE 0
#define KLT_NUM_MODELS 3
#define LPC_GAIN_SCALE 4.000f
#define LPC_LOBAND_SCALE 2.100f
#define LPC_LOBAND_ORDER ORDERLO
#define LPC_HIBAND_SCALE 0.450f
#define LPC_HIBAND_ORDER ORDERHI
#define LPC_GAIN_ORDER 2
#define LPC_SHAPE_ORDER (LPC_LOBAND_ORDER + LPC_HIBAND_ORDER)
#define KLT_ORDER_GAIN (LPC_GAIN_ORDER * SUBFRAMES)
#define KLT_ORDER_SHAPE (LPC_SHAPE_ORDER * SUBFRAMES)
/* cdf array for model indicator */
extern const uint16_t WebRtcIsac_kQKltModelCdf[KLT_NUM_MODELS + 1];
/* pointer to cdf array for model indicator */
extern const uint16_t* WebRtcIsac_kQKltModelCdfPtr[1];
/* initial cdf index for decoder of model indicator */
extern const uint16_t WebRtcIsac_kQKltModelInitIndex[1];
/* offset to go from rounded value to quantization index */
extern const short WebRtcIsac_kQKltQuantMinGain[12];
extern const short WebRtcIsac_kQKltQuantMinShape[108];
/* maximum quantization index */
extern const uint16_t WebRtcIsac_kQKltMaxIndGain[12];
extern const uint16_t WebRtcIsac_kQKltMaxIndShape[108];
/* index offset */
extern const uint16_t WebRtcIsac_kQKltOffsetGain[12];
extern const uint16_t WebRtcIsac_kQKltOffsetShape[108];
/* initial cdf index for KLT coefficients */
extern const uint16_t WebRtcIsac_kQKltInitIndexGain[12];
extern const uint16_t WebRtcIsac_kQKltInitIndexShape[108];
/* quantizer representation levels */
extern const double WebRtcIsac_kQKltLevelsGain[392];
extern const double WebRtcIsac_kQKltLevelsShape[578];
/* cdf tables for quantizer indices */
extern const uint16_t WebRtcIsac_kQKltCdfGain[404];
extern const uint16_t WebRtcIsac_kQKltCdfShape[686];
/* pointers to cdf tables for quantizer indices */
extern const uint16_t* WebRtcIsac_kQKltCdfPtrGain[12];
extern const uint16_t* WebRtcIsac_kQKltCdfPtrShape[108];
/* left KLT transforms */
extern const double WebRtcIsac_kKltT1Gain[4];
extern const double WebRtcIsac_kKltT1Shape[324];
/* right KLT transforms */
extern const double WebRtcIsac_kKltT2Gain[36];
extern const double WebRtcIsac_kKltT2Shape[36];
/* means of log gains and LAR coefficients */
extern const double WebRtcIsac_kLpcMeansGain[12];
extern const double WebRtcIsac_kLpcMeansShape[108];
#endif /* MODULES_AUDIO_CODING_CODECS_ISAC_MAIN_SOURCE_LPC_TABLES_H_ */
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