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diff --git a/media/pocketsphinx/src/state_align_search.h b/media/pocketsphinx/src/state_align_search.h
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+/* -*- c-basic-offset: 4; indent-tabs-mode: nil -*- */
+/* ====================================================================
+ * Copyright (c) 2010 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.
+ *
+ * ====================================================================
+ *
+ */
+
+/**
+ * @file state_align_search.h State (and phone and word) alignment search.
+ */
+
+#ifndef __STATE_ALIGN_SEARCH_H__
+#define __STATE_ALIGN_SEARCH_H__
+
+/* SphinxBase headers. */
+#include <sphinxbase/prim_type.h>
+
+/* Local headers. */
+#include "pocketsphinx_internal.h"
+#include "ps_alignment.h"
+#include "hmm.h"
+
+/**
+ * Phone loop search structure.
+ */
+struct state_align_search_s {
+    ps_search_t base;       /**< Base search structure. */
+    hmm_context_t *hmmctx;  /**< HMM context structure. */
+    ps_alignment_t *al;     /**< Alignment structure being operated on. */
+    hmm_t *hmms;            /**< Vector of HMMs corresponding to phone level. */
+    int n_phones;	    /**< Number of HMMs (phones). */
+
+    int frame;              /**< Current frame being processed. */
+    int32 best_score;       /**< Best score in current frame. */
+
+    int n_emit_state;       /**< Number of emitting states (tokens per frame) */
+    uint16 *tokens;         /**< Tokens (backpointers) for state alignment. */
+    int n_fr_alloc;         /**< Number of frames of tokens allocated. */
+};
+typedef struct state_align_search_s state_align_search_t;
+
+ps_search_t *state_align_search_init(cmd_ln_t *config,
+                                     acmod_t *acmod,
+                                     ps_alignment_t *al);
+
+#endif /* __STATE_ALIGN_SEARCH_H__ */