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huff_code.h
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/* -*- c-basic-offset: 4; indent-tabs-mode: nil -*- */
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/* ====================================================================
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* Copyright (c) 2009 Carnegie Mellon University. All rights
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* reserved.
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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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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* This work was supported in part by funding from the Defense Advanced
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* Research Projects Agency and the National Science Foundation of the
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* United States of America, and the CMU Sphinx Speech Consortium.
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*
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* THIS SOFTWARE IS PROVIDED BY CARNEGIE MELLON UNIVERSITY ``AS IS'' AND
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* ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY
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* NOR ITS EMPLOYEES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* ====================================================================
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*
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*/
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#ifndef __HUFF_CODE_H__
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#define __HUFF_CODE_H__
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#include <stdio.h>
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#include <sphinxbase/sphinxbase_export.h>
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#include <
sphinxbase/prim_type.h
>
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#include <
sphinxbase/cmd_ln.h
>
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typedef
struct
huff_code_s
huff_code_t
;
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SPHINXBASE_EXPORT
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huff_code_t
*
huff_code_build_int
(int32
const
*values, int32
const
*frequencies,
int
nvals);
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SPHINXBASE_EXPORT
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huff_code_t
*
huff_code_build_str
(
char
*
const
*values, int32
const
*frequencies,
int
nvals);
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SPHINXBASE_EXPORT
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huff_code_t
*
huff_code_read
(FILE *infh);
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SPHINXBASE_EXPORT
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int
huff_code_write
(
huff_code_t
*hc, FILE *outfh);
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SPHINXBASE_EXPORT
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int
huff_code_dump
(
huff_code_t
*hc, FILE *dumpfh);
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SPHINXBASE_EXPORT
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huff_code_t
*
huff_code_retain
(
huff_code_t
*hc);
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SPHINXBASE_EXPORT
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int
huff_code_free
(
huff_code_t
*hc);
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SPHINXBASE_EXPORT
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FILE *
huff_code_attach
(
huff_code_t
*hc, FILE *fh,
char
const
*mode);
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SPHINXBASE_EXPORT
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FILE *
huff_code_detach
(
huff_code_t
*hc);
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SPHINXBASE_EXPORT
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int
huff_code_encode_int
(
huff_code_t
*hc, int32 sym, uint32 *outcw);
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SPHINXBASE_EXPORT
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int
huff_code_encode_str
(
huff_code_t
*hc,
char
const
*sym, uint32 *outcw);
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SPHINXBASE_EXPORT
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int
huff_code_decode_int
(
huff_code_t
*hc,
int
*outval,
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char
const
**inout_data,
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size_t
*inout_data_len,
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int
*inout_offset);
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SPHINXBASE_EXPORT
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char
const
*
huff_code_decode_str
(
huff_code_t
*hc,
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char
const
**inout_data,
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size_t
*inout_data_len,
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int
*inout_offset);
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#endif
/* __HUFF_CODE_H__ */
include
sphinxbase
huff_code.h
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