/****************************************************************** | |
iLBC Speech Coder ANSI-C Source Code | |
createCB.h | |
Copyright (C) The Internet Society (2004). | |
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 | |