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+/* Copyright (C) 2002 Jean-Marc Valin & David Rowe */
+/**
+ @file cb_search.h
+ @brief Overlapped codebook search
+*/
+/*
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions
+ are met:
+
+ - Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+
+ - Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+
+ - Neither the name of the Xiph.org Foundation nor the names of its
+ contributors may be used to endorse or promote products derived from
+ this software without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
+ CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef CB_SEARCH_H
+#define CB_SEARCH_H
+
+#include <speex/speex_bits.h>
+#include "arch.h"
+
+/** Split codebook parameters. */
+typedef struct split_cb_params {
+ int subvect_size;
+ int nb_subvect;
+ const signed char *shape_cb;
+ int shape_bits;
+ int have_sign;
+} split_cb_params;
+
+
+void split_cb_search_shape_sign(
+spx_word16_t target[], /* target vector */
+spx_coef_t ak[], /* LPCs for this subframe */
+spx_coef_t awk1[], /* Weighted LPCs for this subframe */
+spx_coef_t awk2[], /* Weighted LPCs for this subframe */
+const void *par, /* Codebook/search parameters */
+int p, /* number of LPC coeffs */
+int nsf, /* number of samples in subframe */
+spx_sig_t *exc,
+spx_word16_t *r,
+SpeexBits *bits,
+char *stack,
+int complexity,
+int update_target
+);
+
+void split_cb_shape_sign_unquant(
+spx_sig_t *exc,
+const void *par, /* non-overlapping codebook */
+int nsf, /* number of samples in subframe */
+SpeexBits *bits,
+char *stack,
+spx_int32_t *seed
+);
+
+
+void noise_codebook_quant(
+spx_word16_t target[], /* target vector */
+spx_coef_t ak[], /* LPCs for this subframe */
+spx_coef_t awk1[], /* Weighted LPCs for this subframe */
+spx_coef_t awk2[], /* Weighted LPCs for this subframe */
+const void *par, /* Codebook/search parameters */
+int p, /* number of LPC coeffs */
+int nsf, /* number of samples in subframe */
+spx_sig_t *exc,
+spx_word16_t *r,
+SpeexBits *bits,
+char *stack,
+int complexity,
+int update_target
+);
+
+
+void noise_codebook_unquant(
+spx_sig_t *exc,
+const void *par, /* non-overlapping codebook */
+int nsf, /* number of samples in subframe */
+SpeexBits *bits,
+char *stack,
+spx_int32_t *seed
+);
+
+#endif