Julius: libsent/src/hmminfo/read_binhmm.c File Reference

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Defines
#define	rdn(A, B, C, D) if (rdnfunc(A,B,C,D) == FALSE) return FALSE
#define	rdn_str(A, B, C) if ((C = rdn_strfunc(A,B)) == NULL) return FALSE
Functions
static boolean	rdnfunc (FILE fp, void buf, size_t unitbyte, int unitnum)
	Binary read function with byte swaping (assume file is BIG ENDIAN).
static char *	rdn_strfunc (FILE fp, HTK_HMM_INFO hmm)
	Read a string till NULL.
static boolean	rd_para (FILE fp, Value para)
	Read acoustic analysis configration parameters from header of binary HMM.
static boolean	rd_header (FILE fp, HTK_HMM_INFO hmm, Value *para)
	Read header string of binary HMM file.
static boolean	rd_opt (FILE fp, HTK_HMM_Options opt)
	Read HMM option specifications.
static boolean	rd_type (FILE fp, HTK_HMM_INFO hmm)
	Read HMM type of mixture tying.
static boolean	rd_trans (FILE fp, HTK_HMM_INFO hmm)
	Read a sequence of transition matrix data for tr_num.
static boolean	rd_var (FILE fp, HTK_HMM_INFO hmm)
	Read a sequence of variance vector for vr_num.
static boolean	rd_dens (FILE fp, HTK_HMM_INFO hmm)
	Read a sequence of mixture densities for dens_num.
static boolean	rd_tmix (FILE fp, HTK_HMM_INFO hmm)
	Read a sequence of mixture codebook for tm_num.
static boolean	rd_state (FILE fp, HTK_HMM_INFO hmm)
	Read a sequence of state data for st_num.
static boolean	rd_data (FILE fp, HTK_HMM_INFO hmm)
	Read a sequence of HMM models.
boolean	read_binhmm (FILE fp, HTK_HMM_INFO hmm, boolean gzfile_p, Value *para)
	Top function to read a binary HMM file from fp.
Variables
static boolean	gzfile
	TRUE when opened by fopen_readfile.
static char	buf [MAXLINELEN]
	Local work are for text handling.
static char	nostr = '\0'
static char *	binhmm_header = BINHMM_HEADER
	Header string.
static char *	binhmm_header_v2 = BINHMM_HEADER_V2
	Header string for V2.
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.

Detailed Description

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.

Function Documentation

static boolean rdnfunc	(	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 54 of file read_binhmm.c.

static char* rdn_strfunc	(	FILE *	fp,
		HTK_HMM_INFO *	hmm
	)			`[static]`

Read a string till NULL.

Parameters:

	fp	[in] file pointer
	hmm	[out] pointer to HMM definition data to store the values.

Returns:: pointer to a newly allocated buffer that contains the read string.

Definition at line 85 of file read_binhmm.c.

static boolean rd_para	(	FILE *	fp,
		Value *	para
	)			`[static]`

Read acoustic analysis configration parameters from header of binary HMM.

Parameters:

	fp	[in] file pointer
	para	[out] acoustic analysis configration parameters

Definition at line 122 of file read_binhmm.c.

Referenced by rd_header().

static boolean rd_header	(	FILE *	fp,
		HTK_HMM_INFO *	hmm,
		Value *	para
	)			`[static]`

Read header string of binary HMM file.

Parameters:

	fp	[in] file pointer
	hmm	[out] pointer to HMM definition data to store the values.
	para	[out] store embedded acoustic parameters if any (V2)

Returns:: TRUE if a correct header was read, FALSE if header string does not match the current version.

Definition at line 173 of file read_binhmm.c.

Referenced by read_binhmm().

static boolean 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 232 of file read_binhmm.c.

Referenced by read_binhmm().

static boolean 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 251 of file read_binhmm.c.

Referenced by read_binhmm().

static boolean 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 274 of file read_binhmm.c.

Referenced by read_binhmm().

static boolean 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 323 of file read_binhmm.c.

Referenced by read_binhmm().

static boolean 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 367 of file read_binhmm.c.

Referenced by read_binhmm().

static boolean 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 416 of file read_binhmm.c.

Referenced by read_binhmm().

static boolean 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 472 of file read_binhmm.c.

Referenced by read_binhmm().

static boolean 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 532 of file read_binhmm.c.

Referenced by read_binhmm().

boolean read_binhmm	(	FILE *	fp,
		HTK_HMM_INFO *	hmm,
		boolean	gzfile_p,
		Value *	para
	)

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.
	gzfile_p	[in] TRUE if the file pointer points to a gzip file
	para	[out] store acoustic parameters if embedded in binhmm (V2)

Returns:: TRUE on success, FALSE on failure.

Definition at line 583 of file read_binhmm.c.

Referenced by init_hmminfo().

libsent/src/hmminfo/read_binhmm.c File Reference

Defines

Functions

Variables

Detailed Description

Function Documentation