src/libpocketsphinx/dict2pid.c File Reference

Implementation of dict2pid. More...

#include <string.h>
#include "dict2pid.h"
#include "hmm.h"

Functions
void	compress_table (s3ssid_t uncomp_tab, s3ssid_t com_tab, s3cipid_t *ci_map, int32 n_ci)
int32	get_rc_nssid (dict2pid_t d2p, s3wid_t w, s3dict_t dict)
	ARCHAN, A duplicate of get_rc_npid in ctxt_table.h.
s3cipid_t *	dict2pid_get_rcmap (dict2pid_t d2p, s3wid_t w, s3dict_t dict)
	Get RC map.
dict2pid_t *	dict2pid_build (bin_mdef_t mdef, s3dict_t dict, int32 is_composite, logmath_t *logmath)
	Build the dict2pid structure for the given model/dictionary.
dict2pid_t *	dict2pid_retain (dict2pid_t *d2p)
	Retain a pointer to dict2pid.
int	dict2pid_free (dict2pid_t *d2p)
	Free the memory dict2pid structure.
void	dict2pid_report (dict2pid_t *d2p)
	Report a dict2pid data structure.
void	dict2pid_comsenscr (dict2pid_t d2p, int16 const senscr, int16 *comsenscr)
	Populate composite senone score array.
void	dict2pid_comsseq2sen_active (dict2pid_t d2p, bin_mdef_t mdef, bitvec_t comssid, bitvec_t sen)
	Mark senones active based on a set of active composite senones.
void	dict2pid_dump (FILE fp, dict2pid_t d2p, bin_mdef_t mdef, s3dict_t dict)
	For debugging.

Detailed Description

Implementation of dict2pid.

A general remark, notice "comsseq" sometimes means compressed sequence. It should be understood as differnet thing as composite in the source code.

Definition in file dict2pid.c.

Function Documentation

void compress_table	(	s3ssid_t *	uncomp_tab,
		s3ssid_t *	com_tab,
		s3cipid_t *	ci_map,
		int32	n_ci
	)

Compress this map

Definition at line 376 of file dict2pid.c.

References BAD_S3CIPID, and BAD_S3SSID.

dict2pid_t* dict2pid_build	(	bin_mdef_t *	mdef,
		s3dict_t *	dict,
		int32	is_composite,
		logmath_t *	logmath
	)

Build the dict2pid structure for the given model/dictionary.

This segments of code take care of the initialization of internal[0] and ldiph[b][r][l]

This part will take care of the initialization of internal[pronlen-1] and rdiph[b][l][r]. Notice that this is symmetric to the first part of the code.

Parameters:

	mdef	A model definition
	dict	An initialized dictionary
	is_composite	Whether composite triphones will be built

Definition at line 594 of file dict2pid.c.

References BAD_S3SENID, BAD_S3SSID, dict2pid_t::comsseq, dict2pid_t::comstate, dict2pid_t::comwt, dict2pid_report(), dict2pid_t::internal, dict2pid_t::is_composite, dict2pid_t::ldiph_lc, dict2pid_t::lrdiph_rc, dict2pid_t::lrssid, dict2pid_t::n_ci, bin_mdef_s::n_ciphone, dict2pid_t::n_comsseq, dict2pid_t::n_comstate, dict2pid_t::n_dictsize, bin_mdef_s::n_emit_state, dict2pid_t::rdiph_rc, dict2pid_t::rssid, SENSCR_SHIFT, dict2pid_t::single_lc, WORD_POSN_BEGIN, WORD_POSN_END, WORD_POSN_INTERNAL, and WORD_POSN_SINGLE.

Referenced by ps_reinit().

void dict2pid_comsenscr	(	dict2pid_t *	d2p,
		int16 const *	senscr,
		int16 *	comsenscr
	)

Populate composite senone score array.

Compute composite senone scores from ordinary senone scores (max of component senones).

The composite senone score is the maximum of its component senones' scores, scaled down by the number of component senones.

Parameters:

	d2p	In: a dict2pid_t structure
	senscr	In: Ordinary senone scores
	comsenscr	Out: Composite senone scores

Definition at line 1064 of file dict2pid.c.

References dict2pid_t::comstate, dict2pid_t::comwt, and dict2pid_t::n_comstate.

void dict2pid_comsseq2sen_active	(	dict2pid_t *	d2p,
		bin_mdef_t *	mdef,
		bitvec_t *	comssid,
		bitvec_t *	sen
	)

Mark senones active based on a set of active composite senones.

Mark active senones as indicated by the input array of composite senone-sequence active flags.

Parameters:

	d2p	In: a dict2pid_t structure
	mdef	In: a bin_mdef_t structure
	comssid	In: Active flag for each comssid
	sen	In/Out: Active flags set for senones indicated by the active comssid