/* Copyright (C) 2002 Jean-Marc Valin */
/**
   @file quant_lsp.h
   @brief LSP vector quantization
*/
/*
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   are met:
   
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   notice, this list of conditions and the following disclaimer.
   
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   notice, this list of conditions and the following disclaimer in the
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   contributors may be used to endorse or promote products derived from
   this software without specific prior written permission.
   
   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
   CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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*/

#ifndef QUANT_LSP_H
#define QUANT_LSP_H

#include <speex/speex_bits.h>
#include "misc.h"

#define MAX_LSP_SIZE 20

#define NB_CDBK_SIZE 64
#define NB_CDBK_SIZE_LOW1 64
#define NB_CDBK_SIZE_LOW2 64
#define NB_CDBK_SIZE_HIGH1 64
#define NB_CDBK_SIZE_HIGH2 64

/*Narrowband codebooks*/
extern const signed char cdbk_nb[];
extern const signed char cdbk_nb_low1[];
extern const signed char cdbk_nb_low2[];
extern const signed char cdbk_nb_high1[];
extern const signed char cdbk_nb_high2[];

/* Quantizes narrowband LSPs with 30 bits */
void lsp_quant_nb(spx_lsp_t *lsp, spx_lsp_t *qlsp, int order, SpeexBits *bits);

/* Decodes quantized narrowband LSPs */
void lsp_unquant_nb(spx_lsp_t *lsp, int order, SpeexBits *bits);

/* Quantizes low bit-rate narrowband LSPs with 18 bits */
void lsp_quant_lbr(spx_lsp_t *lsp, spx_lsp_t *qlsp, int order, SpeexBits *bits);

/* Decodes quantized low bit-rate narrowband LSPs */
void lsp_unquant_lbr(spx_lsp_t *lsp, int order, SpeexBits *bits);

/* Quantizes high-band LSPs with 12 bits */
void lsp_quant_high(spx_lsp_t *lsp, spx_lsp_t *qlsp, int order, SpeexBits *bits);

/* Decodes high-band LSPs */
void lsp_unquant_high(spx_lsp_t *lsp, int order, SpeexBits *bits);

#ifdef EPIC_48K
/* Quantizes narrowband LSPs with 14 bits */
void lsp_quant_48k(spx_lsp_t *lsp, spx_lsp_t *qlsp, int order, SpeexBits *bits);

/* Decodes quantized narrowband LSPs (14 bits) */
void lsp_unquant_48k(spx_lsp_t *lsp, int order, SpeexBits *bits);
#endif


#endif
