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Diffstat (limited to 'media/pocketsphinx/src/kws_search.h')
| -rw-r--r-- | media/pocketsphinx/src/kws_search.h | 136 |
1 files changed, 0 insertions, 136 deletions
diff --git a/media/pocketsphinx/src/kws_search.h b/media/pocketsphinx/src/kws_search.h deleted file mode 100644 index d8cb7c85e..000000000 --- a/media/pocketsphinx/src/kws_search.h +++ /dev/null @@ -1,136 +0,0 @@ -/* -*- c-basic-offset: 4; indent-tabs-mode: nil -*- */ -/* ==================================================================== - * Copyright (c) 2013 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 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. - * - * ==================================================================== - * - */ - -/* - * kws_search.h -- Search structures for keyword spotting. - */ - -#ifndef __KWS_SEARCH_H__ -#define __KWS_SEARCH_H__ - -/* SphinxBase headers. */ -#include <sphinxbase/glist.h> -#include <sphinxbase/cmd_ln.h> - -/* Local headers. */ -#include "pocketsphinx_internal.h" -#include "kws_detections.h" -#include "hmm.h" - -/** - * Segmentation "iterator" for KWS history. - */ -typedef struct kws_seg_s { - ps_seg_t base; /**< Base structure. */ - gnode_t *detection; /**< Keyword detection correspondent to segment. */ -} kws_seg_t; - -typedef struct kws_keyword_s { - char* word; - int32 threshold; - hmm_t* hmms; - int32 n_hmms; -} kws_keyword_t; - -/** - * Implementation of KWS search structure. - */ -typedef struct kws_search_s { - ps_search_t base; - - hmm_context_t *hmmctx; /**< HMM context. */ - - kws_detections_t *detections; /**< Keyword spotting history */ - kws_keyword_t* keyphrases; /**< Keyphrases to spot */ - int n_keyphrases; /**< Keyphrases amount */ - frame_idx_t frame; /**< Frame index */ - - int32 beam; - - int32 plp; /**< Phone loop probability */ - int32 bestscore; /**< For beam pruning */ - int32 def_threshold; /**< default threshold for p(hyp)/p(altern) ratio */ - - int32 n_pl; /**< Number of CI phones */ - hmm_t *pl_hmms; /**< Phone loop hmms - hmms of CI phones */ - -} kws_search_t; - -/** - * Create, initialize and return a search module. Gets keywords either - * from keyphrase or from a keyphrase file. - */ -ps_search_t *kws_search_init(const char *keyphrase, - const char *keyfile, - cmd_ln_t * config, - acmod_t * acmod, - dict_t * dict, dict2pid_t * d2p); - -/** - * Deallocate search structure. - */ -void kws_search_free(ps_search_t * search); - -/** - * Update KWS search module for new key phrase. - */ -int kws_search_reinit(ps_search_t * kwss, dict_t * dict, dict2pid_t * d2p); - -/** - * Prepare the KWS search structure for beginning decoding of the next - * utterance. - */ -int kws_search_start(ps_search_t * search); - -/** - * Step one frame forward through the Viterbi search. - */ -int kws_search_step(ps_search_t * search, int frame_idx); - -/** - * Windup and clean the KWS search structure after utterance. - */ -int kws_search_finish(ps_search_t * search); - -/** - * Get hypothesis string from the KWS search. - */ -char const *kws_search_hyp(ps_search_t * search, int32 * out_score, - int32 * out_is_final); -/** - * Get active keyphrases - */ -char* kws_search_get_keywords(ps_search_t * search); - -#endif /* __KWS_SEARCH_H__ */ |