libsent/src/anlz/wrwav.c File Reference

Write waveform data to WAV file. More...

#include <sent/stddefs.h>
#include <sent/speech.h>

Include dependency graph for wrwav.c:

Go to the source code of this file.

Defines
#define	MYWRITE(A, B, C, D)   if (!mywrite(A, B, C, D)) {j_printerr("wrwav_open: write failed\n"); fclose_writefile(fp); return NULL;}
	Function macro to mywrite() with error handling.
Functions
static boolean	mywrite (void *buf, size_t unitbyte, int unitnum, FILE *fp)
FILE *	wrwav_open (char *filename, int sfreq)
	Open/create a WAVE file and write header.
boolean	wrwav_data (FILE *fp, SP16 *buf, int len)
boolean	wrwav_close (FILE *fp)
	Close the file.
Variables
static int	totallen
	Total number of samples written to the file.

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Detailed Description

Write waveform data to WAV file.

Author:

Akinobu LEE

Date:

Tue Feb 15 01:02:18 2005

Revision

1.3

Definition in file wrwav.c.

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Function Documentation

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

Write speech data in little endian.

Parameters:

	buf	[in] speech data
	unitbyte	[in] unit size in bytes
	unitnum	[in] number of units to be written
	fp	[in] file pointer

Returns:

TRUE on success (specified number of data has been written), FALSE on failure.

Definition at line 40 of file wrwav.c.

Referenced by CMN_save_to_file(), wrwav_close(), and wrwav_data().

FILE* wrwav_open	(	char *	filename,
		int	sfreq
	)

Open/create a WAVE file and write header.

Open or creat a new WAV file and prepare for later data writing. The frame length written here is dummy, and will be overwritten when closed by wrwav_close().

Parameters:

	filename	[in] file name
	sfreq	[in] sampling frequency of the data you are going to write

Returns:

the file pointer.

Definition at line 73 of file wrwav.c.

Referenced by record_sample_open().

boolean wrwav_data	(	FILE *	fp,
		SP16 *	buf,
		int	len
	)

Write speech samples.

Parameters:

	fp	[in] file descriptor
	buf	[in] speech data to be written
	len	[in] length of above

Returns:

actual number of written samples.

Definition at line 126 of file wrwav.c.

Referenced by record_sample_write().

boolean wrwav_close

(

FILE *

fp

)

Close the file.

The frame length in the header part is overwritten by the actual value before file close.

Parameters:

fp

[in] file pointer to close, previously opened by wrwav_open().

Returns:

TRUE on success, FALSE on failure.

Definition at line 146 of file wrwav.c.

Referenced by record_sample_close().

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