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Viewing changes to libspeex/cb_search.h

  • Committer: Bazaar Package Importer
  • Author(s): Mark Purcell
  • Date: 2005-12-07 23:22:21 UTC
  • mfrom: (1.1.1 upstream)
  • Revision ID: james.westby@ubuntu.com-20051207232221-nme7vf9m182p7dpe
Tags: 1.1.11.1-1
New upstream release

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libspeex/cb_search.h
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/* Copyright (C) 2002 Jean-Marc Valin & David Rowe
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   File: cb_search.h
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   Overlapped codebook search
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/* Copyright (C) 2002 Jean-Marc Valin & David Rowe */
 
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/**
 
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   @file cb_search.h
 
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   @brief Overlapped codebook search
 
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*/
 
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/*
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   Redistribution and use in source and binary forms, with or without
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   modification, are permitted provided that the following conditions
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   are met:
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#include <speex/speex_bits.h>
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#include "misc.h"
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/** Split codebook parameters. */
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typedef struct split_cb_params {
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   int     subvect_size;
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   int     nb_subvect;
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void split_cb_search_shape_sign(
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spx_sig_t target[],                     /* target vector */
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spx_coef_t ak[],                        /* LPCs for this subframe */
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spx_coef_t awk1[],                      /* Weighted LPCs for this subframe */
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spx_coef_t awk2[],                      /* Weighted LPCs for this subframe */
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const void *par,                      /* Codebook/search parameters*/
 
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spx_sig_t target[],             /* target vector */
 
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spx_coef_t ak[],                /* LPCs for this subframe */
 
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spx_coef_t awk1[],              /* Weighted LPCs for this subframe */
 
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spx_coef_t awk2[],              /* Weighted LPCs for this subframe */
 
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const void *par,                /* Codebook/search parameters */
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int   p,                        /* number of LPC coeffs */
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int   nsf,                      /* number of samples in subframe */
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spx_sig_t *exc,
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spx_sig_t *r,
 
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spx_word16_t *r,
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SpeexBits *bits,
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char *stack,
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int   complexity
 
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int   complexity,
 
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int   update_target
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);
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void split_cb_shape_sign_unquant(
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spx_sig_t *exc,
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const void *par,                      /* non-overlapping codebook */
 
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const void *par,                /* non-overlapping codebook */
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int   nsf,                      /* number of samples in subframe */
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SpeexBits *bits,
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char *stack
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void noise_codebook_quant(
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spx_sig_t target[],                     /* target vector */
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spx_coef_t ak[],                        /* LPCs for this subframe */
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spx_coef_t awk1[],                      /* Weighted LPCs for this subframe */
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spx_coef_t awk2[],                      /* Weighted LPCs for this subframe */
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const void *par,                      /* Codebook/search parameters*/
 
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spx_sig_t target[],             /* target vector */
 
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spx_coef_t ak[],                /* LPCs for this subframe */
 
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spx_coef_t awk1[],              /* Weighted LPCs for this subframe */
 
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spx_coef_t awk2[],              /* Weighted LPCs for this subframe */
 
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const void *par,                /* Codebook/search parameters */
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int   p,                        /* number of LPC coeffs */
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int   nsf,                      /* number of samples in subframe */
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spx_sig_t *exc,
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spx_sig_t *r,
 
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spx_word16_t *r,
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SpeexBits *bits,
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char *stack,
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int   complexity
 
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int   complexity,
 
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int   update_target
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);
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void noise_codebook_unquant(
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spx_sig_t *exc,
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const void *par,                      /* non-overlapping codebook */
 
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const void *par,                /* non-overlapping codebook */
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int   nsf,                      /* number of samples in subframe */
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SpeexBits *bits,
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char *stack