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/****************************************************************** 
 
    iLBC Speech Coder ANSI-C Source Code 
 
    createCB.h 
 
    Copyright (c) 2001, 
    Global IP Sound AB. 
    All rights reserved. 
 
******************************************************************/ 
 
#ifndef __iLBC_CREATECB_H 
#define __iLBC_CREATECB_H 
 
void filteredCBvecs( 
    float *cbvectors,   /* (o) Codebook vector for the  
                               higher section */ 
    float *mem,         /* (i) Buffer to create codebook  
                               vectors from */ 
    int lMem        /* (i) Length of buffer */ 
); 
 
void searchAugmentedCB( 
    int low,        /* (i) Start index for the search */ 
    int high,           /* (i) End index for the search */ 
    int stage,          /* (i) Current stage */ 
    int startIndex,     /* (i) CB index for the first  
                               augmented vector */ 
    float *target,      /* (i) Target vector for encoding */ 
    float *buffer,      /* (i) Pointer to the end of the  
                               buffer for augmented codebook  
                               construction */ 
    float *max_measure, /* (i/o) Currently maximum measure */ 
    int *best_index,/* (o) Currently the best index */ 
    float *gain,    /* (o) Currently the best gain */ 
    float *energy,      /* (o) Energy of augmented  
                               codebook vectors */ 
    float *invenergy/* (o) Inv energy of aug codebook  
                               vectors */ 
); 
 
void createAugmentedVec( 
    int index,          /* (i) Index for the aug vector  
                               to be created */ 
    float *buffer,      /* (i) Pointer to the end of the  
                               buffer for augmented codebook  
                               construction */ 
    float *cbVec    /* (o) The construced codebook vector */ 
); 
 
#endif