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DuerOS-Light-SDK-v1.1.0/duer-os-light/external/speex/libspeex/cb_search.h@47:9e361da97763, 2017-07-18 (annotated)

Committer:
TMBOY
Date:
Tue Jul 18 16:54:45 2017 +0800
Revision:
47:9e361da97763
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Who changed what in which revision?

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TMBOY 47:9e361da97763 1 /* Copyright (C) 2002 Jean-Marc Valin & David Rowe */
TMBOY 47:9e361da97763 2 /**
TMBOY 47:9e361da97763 3 @file cb_search.h
TMBOY 47:9e361da97763 4 @brief Overlapped codebook search
TMBOY 47:9e361da97763 5 */
TMBOY 47:9e361da97763 6 /*
TMBOY 47:9e361da97763 7 Redistribution and use in source and binary forms, with or without
TMBOY 47:9e361da97763 8 modification, are permitted provided that the following conditions
TMBOY 47:9e361da97763 9 are met:
TMBOY 47:9e361da97763 10
TMBOY 47:9e361da97763 11 - Redistributions of source code must retain the above copyright
TMBOY 47:9e361da97763 12 notice, this list of conditions and the following disclaimer.
TMBOY 47:9e361da97763 13
TMBOY 47:9e361da97763 14 - Redistributions in binary form must reproduce the above copyright
TMBOY 47:9e361da97763 15 notice, this list of conditions and the following disclaimer in the
TMBOY 47:9e361da97763 16 documentation and/or other materials provided with the distribution.
TMBOY 47:9e361da97763 17
TMBOY 47:9e361da97763 18 - Neither the name of the Xiph.org Foundation nor the names of its
TMBOY 47:9e361da97763 19 contributors may be used to endorse or promote products derived from
TMBOY 47:9e361da97763 20 this software without specific prior written permission.
TMBOY 47:9e361da97763 21
TMBOY 47:9e361da97763 22 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
TMBOY 47:9e361da97763 23 ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
TMBOY 47:9e361da97763 24 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
TMBOY 47:9e361da97763 25 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
TMBOY 47:9e361da97763 26 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
TMBOY 47:9e361da97763 27 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
TMBOY 47:9e361da97763 28 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
TMBOY 47:9e361da97763 29 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
TMBOY 47:9e361da97763 30 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
TMBOY 47:9e361da97763 31 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
TMBOY 47:9e361da97763 32 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
TMBOY 47:9e361da97763 33 */
TMBOY 47:9e361da97763 34
TMBOY 47:9e361da97763 35 #ifndef CB_SEARCH_H
TMBOY 47:9e361da97763 36 #define CB_SEARCH_H
TMBOY 47:9e361da97763 37
TMBOY 47:9e361da97763 38 #include <speex/speex_bits.h>
TMBOY 47:9e361da97763 39 #include "misc.h"
TMBOY 47:9e361da97763 40
TMBOY 47:9e361da97763 41 /** Split codebook parameters. */
TMBOY 47:9e361da97763 42 typedef struct split_cb_params {
TMBOY 47:9e361da97763 43 int subvect_size;
TMBOY 47:9e361da97763 44 int nb_subvect;
TMBOY 47:9e361da97763 45 const signed char *shape_cb;
TMBOY 47:9e361da97763 46 int shape_bits;
TMBOY 47:9e361da97763 47 int have_sign;
TMBOY 47:9e361da97763 48 } split_cb_params;
TMBOY 47:9e361da97763 49
TMBOY 47:9e361da97763 50
TMBOY 47:9e361da97763 51 void split_cb_search_shape_sign(
TMBOY 47:9e361da97763 52 spx_word16_t target[], /* target vector */
TMBOY 47:9e361da97763 53 spx_coef_t ak[], /* LPCs for this subframe */
TMBOY 47:9e361da97763 54 spx_coef_t awk1[], /* Weighted LPCs for this subframe */
TMBOY 47:9e361da97763 55 spx_coef_t awk2[], /* Weighted LPCs for this subframe */
TMBOY 47:9e361da97763 56 const void *par, /* Codebook/search parameters */
TMBOY 47:9e361da97763 57 int p, /* number of LPC coeffs */
TMBOY 47:9e361da97763 58 int nsf, /* number of samples in subframe */
TMBOY 47:9e361da97763 59 spx_sig_t *exc,
TMBOY 47:9e361da97763 60 spx_word16_t *r,
TMBOY 47:9e361da97763 61 SpeexBits *bits,
TMBOY 47:9e361da97763 62 char *stack,
TMBOY 47:9e361da97763 63 int complexity,
TMBOY 47:9e361da97763 64 int update_target
TMBOY 47:9e361da97763 65 );
TMBOY 47:9e361da97763 66
TMBOY 47:9e361da97763 67 void split_cb_shape_sign_unquant(
TMBOY 47:9e361da97763 68 spx_sig_t *exc,
TMBOY 47:9e361da97763 69 const void *par, /* non-overlapping codebook */
TMBOY 47:9e361da97763 70 int nsf, /* number of samples in subframe */
TMBOY 47:9e361da97763 71 SpeexBits *bits,
TMBOY 47:9e361da97763 72 char *stack,
TMBOY 47:9e361da97763 73 spx_int32_t *seed
TMBOY 47:9e361da97763 74 );
TMBOY 47:9e361da97763 75
TMBOY 47:9e361da97763 76
TMBOY 47:9e361da97763 77 void noise_codebook_quant(
TMBOY 47:9e361da97763 78 spx_word16_t target[], /* target vector */
TMBOY 47:9e361da97763 79 spx_coef_t ak[], /* LPCs for this subframe */
TMBOY 47:9e361da97763 80 spx_coef_t awk1[], /* Weighted LPCs for this subframe */
TMBOY 47:9e361da97763 81 spx_coef_t awk2[], /* Weighted LPCs for this subframe */
TMBOY 47:9e361da97763 82 const void *par, /* Codebook/search parameters */
TMBOY 47:9e361da97763 83 int p, /* number of LPC coeffs */
TMBOY 47:9e361da97763 84 int nsf, /* number of samples in subframe */
TMBOY 47:9e361da97763 85 spx_sig_t *exc,
TMBOY 47:9e361da97763 86 spx_word16_t *r,
TMBOY 47:9e361da97763 87 SpeexBits *bits,
TMBOY 47:9e361da97763 88 char *stack,
TMBOY 47:9e361da97763 89 int complexity,
TMBOY 47:9e361da97763 90 int update_target
TMBOY 47:9e361da97763 91 );
TMBOY 47:9e361da97763 92
TMBOY 47:9e361da97763 93
TMBOY 47:9e361da97763 94 void noise_codebook_unquant(
TMBOY 47:9e361da97763 95 spx_sig_t *exc,
TMBOY 47:9e361da97763 96 const void *par, /* non-overlapping codebook */
TMBOY 47:9e361da97763 97 int nsf, /* number of samples in subframe */
TMBOY 47:9e361da97763 98 SpeexBits *bits,
TMBOY 47:9e361da97763 99 char *stack,
TMBOY 47:9e361da97763 100 spx_int32_t *seed
TMBOY 47:9e361da97763 101 );
TMBOY 47:9e361da97763 102
TMBOY 47:9e361da97763 103 #endif