read_binhmm.c File Reference

Read a binary HMM definition file. More...

#include <sent/stddefs.h>
#include <sent/htk_param.h>
#include <sent/htk_hmm.h>

Include dependency graph for read_binhmm.c:

Go to the source code of this file.

Functions
static void	rdn (FILE *fp, void *buf, size_t unitbyte, int unitnum)
static char *	rdn_str (FILE *fp)
static boolean	rd_header (FILE *fp)
static void	rd_opt (FILE *fp, HTK_HMM_Options *opt)
static void	rd_type (FILE *fp, HTK_HMM_INFO *hmm)
static void	rd_trans (FILE *fp, HTK_HMM_INFO *hmm)
	Read a sequence of transition matrix data for tr_num.
static void	rd_var (FILE *fp, HTK_HMM_INFO *hmm)
	Read a sequence of variance vector for vr_num.
static void	rd_dens (FILE *fp, HTK_HMM_INFO *hmm)
	Read a sequence of mixture densities for dens_num.
static void	rd_tmix (FILE *fp, HTK_HMM_INFO *hmm)
	Read a sequence of mixture codebook for tm_num.
static void	rd_state (FILE *fp, HTK_HMM_INFO *hmm)
	Read a sequence of state data for st_num.
static void	rd_data (FILE *fp, HTK_HMM_INFO *hmm)
	Read a sequence of HMM models.
boolean	read_binhmm (FILE *fp, HTK_HMM_INFO *hmm)
Variables
static char	buf [MAXLINELEN]
	Local work are for text handling.
static char *	binhmm_header = BINHMM_HEADER
	Header string.
static HTK_HMM_Trans **	tr_index
	Map transition matrix id to its pointer.
static unsigned int	tr_num
	Length of above.
static HTK_HMM_Var **	vr_index
	Map variance id to its pointer.
static unsigned int	vr_num
	Length of above.
static HTK_HMM_Dens **	dens_index
	Map density id to its pointer.
static unsigned int	dens_num
	Length of above.
static GCODEBOOK **	tm_index
	Map codebook id to its pointer.
static unsigned int	tm_num
	Length of above.
static HTK_HMM_State **	st_index
	Map state id to its pointer.
static unsigned int	st_num
	Length of above.

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Detailed Description

Read a binary HMM definition file.

Author:

Akinobu LEE

Date:

Wed Feb 16 05:23:59 2005

Julius supports a binary format of HMM definition file. The tool "mkbinhmm" can convert the ascii format HTK HMM definition file to this format. Please note that this binary format is not compatible with the HTK binary format.

Revision

1.2

Definition in file read_binhmm.c.

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Function Documentation

static void rdn (  FILE *  fp, void *  buf, size_t  unitbyte, int  unitnum )  [static]

Binary read function with byte swaping (assume file is BIG ENDIAN) Parameters: fp  [in] file pointer buf  [out] read data unitbyte  [in] size of a unit in bytes unitnum  [in] number of unit to be read Definition at line 48 of file read_binhmm.c. Referenced by check_header(), ngram_read_bin(), rd_data(), rd_dens(), rd_opt(), rd_state(), rd_tmix(), rd_trans(), rd_type(), and rd_var().

static char* rdn_str (  FILE *  fp  )  [static]

Read a string till NULL. Parameters: fp  [in] file pointer Returns: pointer to a newly allocated buffer that contains the read string. Definition at line 73 of file read_binhmm.c. Referenced by rd_data(), rd_dens(), rd_header(), rd_state(), rd_tmix(), rd_trans(), and rd_var().

static boolean rd_header (  FILE *  fp  )  [static]

Read header string of binary HMM file. Parameters: fp  [in] file pointer Returns: TRUE if a correct header was read, FALSE if header string does not match the current version. Definition at line 104 of file read_binhmm.c. Referenced by read_binhmm().

static void rd_opt (  FILE *  fp, HTK_HMM_Options *  opt )  [static]

Read HMM option specifications. Parameters: fp  [in] file pointer opt  [out] pointer to the HMM option structure to hold the read values. Definition at line 126 of file read_binhmm.c. Referenced by read_binhmm().

static void rd_type (  FILE *  fp, HTK_HMM_INFO *  hmm )  [static]

Read HMM type of mixture tying. Parameters: fp  [in] file pointer hmm  [out] pointer to HMM definition data to store the values. Definition at line 143 of file read_binhmm.c. Referenced by read_binhmm().

static void rd_trans (  FILE *  fp, HTK_HMM_INFO *  hmm )  [static]

Read a sequence of transition matrix data for tr_num. The transition matrixes are stored into hmm, and their pointers are also stored in tr_index for later data mapping operation from upper structure (state etc.). Parameters: fp  [in] file pointer hmm  [out] HMM definition structure to hold the read transitions. Definition at line 165 of file read_binhmm.c. Referenced by read_binhmm().

static void rd_var (  FILE *  fp, HTK_HMM_INFO *  hmm )  [static]

Read a sequence of variance vector for vr_num. The variance vectors are stored into hmm, and their pointers are also stored in vr_index for later data mapping operation from upper structure (density etc.). Parameters: fp  [in] file pointer hmm  [out] HMM definition structure to hold the read variance. Definition at line 211 of file read_binhmm.c. Referenced by read_binhmm().

static void rd_dens (  FILE *  fp, HTK_HMM_INFO *  hmm )  [static]

Read a sequence of mixture densities for dens_num. The mixture densities are stored into hmm, and their references to lower structure (variance etc.) are recovered from the id-to-pointer index. Their pointers are also stored in dens_index for later data mapping operation from upper structure (state etc.). Parameters: fp  [in] file pointer hmm  [out] HMM definition structure to hold the read densities. Definition at line 252 of file read_binhmm.c. Referenced by read_binhmm().

static void rd_tmix (  FILE *  fp, HTK_HMM_INFO *  hmm )  [static]

Read a sequence of mixture codebook for tm_num. The mixture codebook data are stored into hmm, and their references to lower structure (mixtures etc.) are recovered from the id-to-pointer index. Their pointers are also stored in tm_index for later data mapping operation from upper structure (state etc.). Parameters: fp  [in] file pointer hmm  [out] HMM definition structure to hold the read codebooks. Definition at line 298 of file read_binhmm.c. Referenced by read_binhmm().

static void rd_state (  FILE *  fp, HTK_HMM_INFO *  hmm )  [static]

Read a sequence of state data for st_num. The state data are stored into hmm, and their references to lower structure (mixture, codebook, etc.) are recovered from the id-to-pointer index. Their pointers are also stored in st_index for later data mapping operation from upper structure (models etc.). Parameters: fp  [in] file pointer hmm  [out] HMM definition structure to hold the read states. Definition at line 351 of file read_binhmm.c. Referenced by read_binhmm().

static void rd_data (  FILE *  fp, HTK_HMM_INFO *  hmm )  [static]

Read a sequence of HMM models. The models are stored into hmm. Their references to lower structures (state, transition, etc.) are stored in schalar ID, and are recovered from the previously built id-to-pointer index. when reading the sub structures. Parameters: fp  [in] file pointer hmm  [out] HMM definition structure to hold the read models. Definition at line 408 of file read_binhmm.c. Referenced by read_binhmm().

boolean read_binhmm (  FILE *  fp, HTK_HMM_INFO *  hmm )

Top function to read a binary HMM file from fp. Parameters: fp  [in] file pointer hmm  [out] HMM definition structure to hold the read models. Returns: TRUE on success, FALSE on failure. Definition at line 454 of file read_binhmm.c. Referenced by init_hmminfo().

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