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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
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+/* -*- c-basic-offset: 4; indent-tabs-mode: nil -*- */
+/* ====================================================================
+ * Copyright (c) 1999-2014 Carnegie Mellon University. All rights
+ * reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. 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.
+ *
+ * This work was supported in part by funding from the Defense Advanced
+ * Research Projects Agency and the National Science Foundation of the
+ * United States of America, and the CMU Sphinx Speech Consortium.
+ *
+ * THIS SOFTWARE IS PROVIDED BY CARNEGIE MELLON UNIVERSITY ``AS IS'' AND
+ * ANY EXPRESSED 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 CARNEGIE MELLON UNIVERSITY
+ * NOR ITS EMPLOYEES 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 _S3_DICT2PID_H_
+#define _S3_DICT2PID_H_
+
+/* System headers. */
+#include <stdio.h>
+
+/* SphinxBase headers. */
+#include <sphinxbase/logmath.h>
+#include <sphinxbase/bitvec.h>
+
+/* Local headers. */
+#include "s3types.h"
+#include "bin_mdef.h"
+#include "dict.h"
+
+/** \file dict2pid.h
+ * \brief Building triphones for a dictionary.
+ *
+ * This is one of the more complicated parts of a cross-word
+ * triphone model decoder. The first and last phones of each word
+ * get their left and right contexts, respectively, from other
+ * words. For single-phone words, both its contexts are from other
+ * words, simultaneously. As these words are not known beforehand,
+ * life gets complicated.
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \struct xwdssid_t
+ * \brief cross word triphone model structure
+ */
+
+typedef struct {
+ s3ssid_t *ssid; /**< Senone Sequence ID list for all context ciphones */
+ s3cipid_t *cimap; /**< Index into ssid[] above for each ci phone */
+ int32 n_ssid; /**< #Unique ssid in above, compressed ssid list */
+} xwdssid_t;
+
+/**
+ \struct dict2pid_t
+ \brief Building composite triphone (as well as word internal triphones) with the dictionary.
+*/
+
+typedef struct {
+ int refcount;
+
+ bin_mdef_t *mdef; /**< Model definition, used to generate
+ internal ssids on the fly. */
+ dict_t *dict; /**< Dictionary this table refers to. */
+
+ /*Notice the order of the arguments */
+ /* FIXME: This is crying out for compression - in Mandarin we have
+ * 180 context independent phones, which makes this an 11MB
+ * array. */
+ s3ssid_t ***ldiph_lc; /**< For multi-phone words, [base][rc][lc] -> ssid; filled out for
+ word-initial base x rc combinations in current vocabulary */
+
+
+ xwdssid_t **rssid; /**< Right context state sequence id table
+ First dimension: base phone,
+ Second dimension: left context.
+ */
+
+
+ s3ssid_t ***lrdiph_rc; /**< For single-phone words, [base][lc][rc] -> ssid; filled out for
+ single-phone base x lc combinations in current vocabulary */
+
+ xwdssid_t **lrssid; /**< Left-Right context state sequence id table
+ First dimension: base phone,
+ Second dimension: left context.
+ */
+} dict2pid_t;
+
+/** Access macros; not designed for arbitrary use */
+#define dict2pid_rssid(d,ci,lc) (&(d)->rssid[ci][lc])
+#define dict2pid_ldiph_lc(d,b,r,l) ((d)->ldiph_lc[b][r][l])
+#define dict2pid_lrdiph_rc(d,b,l,r) ((d)->lrdiph_rc[b][l][r])
+
+/**
+ * Build the dict2pid structure for the given model/dictionary
+ */
+dict2pid_t *dict2pid_build(bin_mdef_t *mdef, /**< A model definition*/
+ dict_t *dict /**< An initialized dictionary */
+ );
+
+/**
+ * Retain a pointer to dict2pid
+ */
+dict2pid_t *dict2pid_retain(dict2pid_t *d2p);
+
+/**
+ * Free the memory dict2pid structure
+ */
+int dict2pid_free(dict2pid_t *d2p /**< In: the d2p */
+ );
+
+/**
+ * Return the senone sequence ID for the given word position.
+ */
+s3ssid_t dict2pid_internal(dict2pid_t *d2p,
+ int32 wid,
+ int pos);
+
+/**
+ * Add a word to the dict2pid structure (after adding it to dict).
+ */
+int dict2pid_add_word(dict2pid_t *d2p,
+ int32 wid);
+
+/**
+ * For debugging
+ */
+void dict2pid_dump(FILE *fp, /**< In: a file pointer */
+ dict2pid_t *d2p /**< In: a dict2pid_t structure */
+ );
+
+/** Report a dict2pid data structure */
+void dict2pid_report(dict2pid_t *d2p /**< In: a dict2pid_t structure */
+ );
+
+/**
+ * Get number of rc
+ */
+int32 get_rc_nssid(dict2pid_t *d2p, /**< In: a dict2pid */
+ s3wid_t w /**< In: a wid */
+ );
+
+/**
+ * Get RC map
+ */
+s3cipid_t* dict2pid_get_rcmap(dict2pid_t *d2p, /**< In: a dict2pid */
+ s3wid_t w /**< In: a wid */
+ );
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif