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Diffstat (limited to 'codecs/ilbc/createCB.h')
-rwxr-xr-x | codecs/ilbc/createCB.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/codecs/ilbc/createCB.h b/codecs/ilbc/createCB.h new file mode 100755 index 000000000..41bbead14 --- /dev/null +++ b/codecs/ilbc/createCB.h @@ -0,0 +1,55 @@ + +/****************************************************************** + + 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 + + |