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Diffstat (limited to 'media/pocketsphinx/src/allphone_search.h')
| -rw-r--r-- | media/pocketsphinx/src/allphone_search.h | 179 |
1 files changed, 0 insertions, 179 deletions
diff --git a/media/pocketsphinx/src/allphone_search.h b/media/pocketsphinx/src/allphone_search.h deleted file mode 100644 index 2658e87c2..000000000 --- a/media/pocketsphinx/src/allphone_search.h +++ /dev/null @@ -1,179 +0,0 @@ -/* -*- c-basic-offset:4; indent-tabs-mode: nil -*- */ -/* ==================================================================== - * Copyright (c) 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 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. - * - * ==================================================================== - * - */ - -/* - * allphone_search.h -- Search structures for phoneme decoding. - */ - - -#ifndef __ALLPHONE_SEARCH_H__ -#define __ALLPHONE_SEARCH_H__ - - -/* SphinxBase headers. */ -#include <sphinxbase/glist.h> -#include <sphinxbase/cmd_ln.h> -#include <sphinxbase/ngram_model.h> -#include <sphinxbase/bitvec.h> - -/* Local headers. */ -#include "pocketsphinx_internal.h" -#include "blkarray_list.h" -#include "hmm.h" - -/** - * Models a single unique <senone-sequence, tmat> pair. - * Can represent several different triphones, but all with the same parent basephone. - * (NOTE: Word-position attribute of triphone is ignored.) - */ -typedef struct phmm_s { - hmm_t hmm; /**< Base HMM structure */ - s3pid_t pid; /**< Phone id (temp. during init.) */ - s3cipid_t ci; /**< Parent basephone for this PHMM */ - bitvec_t *lc; /**< Set (bit-vector) of left context phones seen for this PHMM */ - bitvec_t *rc; /**< Set (bit-vector) of right context phones seen for this PHMM */ - struct phmm_s *next; /**< Next unique PHMM for same parent basephone */ - struct plink_s *succlist; /**< List of predecessor PHMM nodes */ -} phmm_t; - -/** - * List of links from a PHMM node to its successors; one link per successor. - */ -typedef struct plink_s { - phmm_t *phmm; /**< Successor PHMM node */ - struct plink_s *next; /**< Next link for parent PHMM node */ -} plink_t; - -/** - * History (paths) information at any point in allphone Viterbi search. - */ -typedef struct history_s { - phmm_t *phmm; /**< PHMM ending this path */ - int32 score; /**< Path score for this path */ - int32 tscore; /**< Transition score for this path */ - frame_idx_t ef; /**< End frame */ - int32 hist; /**< Previous history entry */ -} history_t; - -/** - * Phone level segmentation information - */ -typedef struct phseg_s { - s3cipid_t ci; /* CI-phone id */ - frame_idx_t sf, ef; /* Start and end frame for this phone occurrence */ - int32 score; /* Acoustic score for this segment of alignment */ - int32 tscore; /* Transition ("LM") score for this segment */ -} phseg_t; - -/** - * Segment iterator over list of phseg - */ -typedef struct phseg_iter_s { - ps_seg_t base; - glist_t seg; -} phseg_iter_t; - -/** - * Implementation of allphone search structure. - */ -typedef struct allphone_search_s { - ps_search_t base; - - hmm_context_t *hmmctx; /**< HMM context. */ - ngram_model_t *lm; /**< Ngram model set */ - int32 ci_only; /**< Use context-independent phones for decoding */ - phmm_t **ci_phmm; /**< PHMM lists (for each CI phone) */ - int32 *ci2lmwid; /**< Mapping of CI phones to LM word IDs */ - - int32 beam, pbeam; /**< Effective beams after applying beam_factor */ - int32 lw, inspen; /**< Language weights */ - - frame_idx_t frame; /**< Current frame. */ - float32 ascale; /**< Acoustic score scale for posterior probabilities. */ - - int32 n_tot_frame; /**< Total number of frames processed */ - int32 n_hmm_eval; /**< Total HMMs evaluated this utt */ - int32 n_sen_eval; /**< Total senones evaluated this utt */ - - /* Backtrace information */ - blkarray_list_t *history; /**< List of history nodes allocated in each frame */ - /* Hypothesis DAG */ - glist_t segments; - - ptmr_t perf; /**< Performance counter */ - -} allphone_search_t; - -/** - * Create, initialize and return a search module. - */ -ps_search_t *allphone_search_init(ngram_model_t * lm, - cmd_ln_t * config, - acmod_t * acmod, - dict_t * dict, dict2pid_t * d2p); - -/** - * Deallocate search structure. - */ -void allphone_search_free(ps_search_t * search); - -/** - * Update allphone search module. - */ -int allphone_search_reinit(ps_search_t * search, dict_t * dict, - dict2pid_t * d2p); - -/** - * Prepare the allphone search structure for beginning decoding of the next - * utterance. - */ -int allphone_search_start(ps_search_t * search); - -/** - * Step one frame forward through the Viterbi search. - */ -int allphone_search_step(ps_search_t * search, int frame_idx); - -/** - * Windup and clean the allphone search structure after utterance. - */ -int allphone_search_finish(ps_search_t * search); - -/** - * Get hypothesis string from the allphone search. - */ -char const *allphone_search_hyp(ps_search_t * search, int32 * out_score, - int32 * out_is_final); - -#endif /* __ALLPHONE_SEARCH_H__ */ |