write_read_test.c

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/*
** Copyright (C) 1999-2004 Erik de Castro Lopo <[e-mail]>
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/

#include "config.h"

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif

#include	<math.h>

#if (defined (WIN32) || defined (_WIN32))
#include	<fcntl.h>
static int truncate (const char *filename, int ignored) ;
#endif

#include	<sndfile.h>

#include	"utils.h"

#define	SAMPLE_RATE			11025
#define	DATA_LENGTH			(1<<12)

#define	SILLY_WRITE_COUNT	(234)

static void	pcm_test_char (const char *str, int format, int long_file_okz) ;
static void	pcm_test_short (const char *str, int format, int long_file_okz) ;
static void	pcm_test_24bit (const char *str, int format, int long_file_okz) ;
static void	pcm_test_int (const char *str, int format, int long_file_okz) ;
static void	pcm_test_float (const char *str, int format, int long_file_okz) ;
static void	pcm_test_double (const char *str, int format, int long_file_okz) ;

static void empty_file_test (const char *filename, int format) ;

static	double	orig_data [DATA_LENGTH] ;
static	double	test_data [DATA_LENGTH] ;

int
main (int argc, char **argv)
{	int		do_all = 0 ;
	int		test_count = 0 ;

	count_open_files () ;

	if (argc != 2)
	{	printf ("Usage : %s <test>\n", argv [0]) ;
		printf ("    Where <test> is one of the following:\n") ;
		printf ("           wav   - test WAV file functions (little endian)\n") ;
		printf ("           aiff  - test AIFF file functions (big endian)\n") ;
		printf ("           au    - test AU file functions\n") ;
		printf ("           avr   - test AVR file functions\n") ;
		printf ("           raw   - test RAW header-less PCM file functions\n") ;
		printf ("           paf   - test PAF file functions\n") ;
		printf ("           svx   - test 8SVX/16SV file functions\n") ;
		printf ("           nist  - test NIST Sphere file functions\n") ;
		printf ("           ircam - test IRCAM file functions\n") ;
		printf ("           voc   - Create Voice file functions\n") ;
		printf ("           w64   - Sonic Foundry's W64 file functions\n") ;
		printf ("           all   - perform all tests\n") ;
		exit (1) ;
		} ;

	do_all = !strcmp (argv [1], "all") ;

	if (do_all || ! strcmp (argv [1], "wav"))
	{	empty_file_test ("empty_char.wav", SF_FORMAT_WAV | SF_FORMAT_PCM_U8) ;
		empty_file_test ("empty_short.wav", SF_FORMAT_WAV | SF_FORMAT_PCM_16) ;
		empty_file_test ("empty_float.wav", SF_FORMAT_WAV | SF_FORMAT_FLOAT) ;

		pcm_test_char	("char.wav"		, SF_FORMAT_WAV | SF_FORMAT_PCM_U8, SF_FALSE) ;
		pcm_test_short	("short.wav"	, SF_FORMAT_WAV | SF_FORMAT_PCM_16, SF_FALSE) ;
		pcm_test_24bit	("24bit.wav"	, SF_FORMAT_WAV | SF_FORMAT_PCM_24, SF_FALSE) ;
		pcm_test_int	("int.wav"		, SF_FORMAT_WAV | SF_FORMAT_PCM_32, SF_FALSE) ;

		pcm_test_24bit	("24bit.wavex"	, SF_FORMAT_WAVEX | SF_FORMAT_PCM_24, SF_FALSE) ;
		pcm_test_int	("int.wavex"	, SF_FORMAT_WAVEX | SF_FORMAT_PCM_32, SF_FALSE) ;

		/* Lite remove start */
		pcm_test_float	("float.wav"	, SF_FORMAT_WAV | SF_FORMAT_FLOAT , SF_FALSE) ;
		pcm_test_double	("double.wav"	, SF_FORMAT_WAV | SF_FORMAT_DOUBLE, SF_FALSE) ;

		pcm_test_float	("float.wavex"	, SF_FORMAT_WAVEX | SF_FORMAT_FLOAT , SF_FALSE) ;
		pcm_test_double	("double.wavex"	, SF_FORMAT_WAVEX | SF_FORMAT_DOUBLE, SF_FALSE) ;
		/* Lite remove end */
		test_count++ ;
		} ;

	if (do_all || ! strcmp (argv [1], "aiff"))
	{	empty_file_test ("empty_char.aiff", SF_FORMAT_AIFF | SF_FORMAT_PCM_U8) ;
		empty_file_test ("empty_short.aiff", SF_FORMAT_AIFF | SF_FORMAT_PCM_16) ;
		empty_file_test ("empty_float.aiff", SF_FORMAT_AIFF | SF_FORMAT_FLOAT) ;

		pcm_test_char	("char_u8.aiff"	, SF_FORMAT_AIFF | SF_FORMAT_PCM_U8, SF_FALSE) ;
		pcm_test_char	("char_s8.aiff"	, SF_FORMAT_AIFF | SF_FORMAT_PCM_S8, SF_FALSE) ;
		pcm_test_short	("short.aiff"	, SF_FORMAT_AIFF | SF_FORMAT_PCM_16, SF_FALSE) ;
		pcm_test_24bit	("24bit.aiff"	, SF_FORMAT_AIFF | SF_FORMAT_PCM_24, SF_FALSE) ;
		pcm_test_int	("int.aiff"		, SF_FORMAT_AIFF | SF_FORMAT_PCM_32, SF_FALSE) ;

		pcm_test_short	("short_sowt.aifc"	, SF_ENDIAN_LITTLE | SF_FORMAT_AIFF | SF_FORMAT_PCM_16, SF_FALSE) ;
		pcm_test_24bit	("24bit_sowt.aifc"	, SF_ENDIAN_LITTLE | SF_FORMAT_AIFF | SF_FORMAT_PCM_24, SF_FALSE) ;
		pcm_test_int	("int_sowt.aifc"	, SF_ENDIAN_LITTLE | SF_FORMAT_AIFF | SF_FORMAT_PCM_32, SF_FALSE) ;

		pcm_test_short	("short_twos.aifc"	, SF_ENDIAN_BIG | SF_FORMAT_AIFF | SF_FORMAT_PCM_16, SF_FALSE) ;
		pcm_test_24bit	("24bit_twos.aifc"	, SF_ENDIAN_BIG | SF_FORMAT_AIFF | SF_FORMAT_PCM_24, SF_FALSE) ;
		pcm_test_int	("int_twos.aifc"	, SF_ENDIAN_BIG | SF_FORMAT_AIFF | SF_FORMAT_PCM_32, SF_FALSE) ;

		/* Lite remove start */
		pcm_test_short	("dwvw16.aifc", SF_FORMAT_AIFF | SF_FORMAT_DWVW_16, SF_TRUE) ;
		pcm_test_24bit	("dwvw24.aifc", SF_FORMAT_AIFF | SF_FORMAT_DWVW_24, SF_TRUE) ;

		pcm_test_float	("float.aifc"	, SF_FORMAT_AIFF | SF_FORMAT_FLOAT , SF_FALSE) ;
		pcm_test_double	("double.aifc"	, SF_FORMAT_AIFF | SF_FORMAT_DOUBLE, SF_FALSE) ;
		/* Lite remove end */
		test_count++ ;
		} ;

	if (do_all || ! strcmp (argv [1], "au"))
	{	pcm_test_char	("char.au"	, SF_FORMAT_AU | SF_FORMAT_PCM_S8, SF_FALSE) ;
		pcm_test_short	("short.au"	, SF_FORMAT_AU | SF_FORMAT_PCM_16, SF_FALSE) ;
		pcm_test_24bit	("24bit.au"	, SF_FORMAT_AU | SF_FORMAT_PCM_24, SF_FALSE) ;
		pcm_test_int	("int.au"	, SF_FORMAT_AU | SF_FORMAT_PCM_32, SF_FALSE) ;
		/* Lite remove start */
		pcm_test_float	("float.au"	, SF_FORMAT_AU | SF_FORMAT_FLOAT , SF_FALSE) ;
		pcm_test_double	("double.au", SF_FORMAT_AU | SF_FORMAT_DOUBLE, SF_FALSE) ;
		/* Lite remove end */

		pcm_test_char	("char_le.au"	, SF_ENDIAN_LITTLE | SF_FORMAT_AU | SF_FORMAT_PCM_S8, SF_FALSE) ;
		pcm_test_short	("short_le.au"	, SF_ENDIAN_LITTLE | SF_FORMAT_AU | SF_FORMAT_PCM_16, SF_FALSE) ;
		pcm_test_24bit	("24bit_le.au"	, SF_ENDIAN_LITTLE | SF_FORMAT_AU | SF_FORMAT_PCM_24, SF_FALSE) ;
		pcm_test_int	("int_le.au"	, SF_ENDIAN_LITTLE | SF_FORMAT_AU | SF_FORMAT_PCM_32, SF_FALSE) ;
		/* Lite remove start */
		pcm_test_float	("float_le.au"	, SF_ENDIAN_LITTLE | SF_FORMAT_AU | SF_FORMAT_FLOAT , SF_FALSE) ;
		pcm_test_double	("double_le.au"	, SF_ENDIAN_LITTLE | SF_FORMAT_AU | SF_FORMAT_DOUBLE, SF_FALSE) ;
		/* Lite remove end */
		test_count++ ;
		} ;

	if (do_all || ! strcmp (argv [1], "raw"))
	{	pcm_test_char	("char_s8.raw"	, SF_FORMAT_RAW | SF_FORMAT_PCM_S8, SF_FALSE) ;
		pcm_test_char	("char_u8.raw"	, SF_FORMAT_RAW | SF_FORMAT_PCM_U8, SF_FALSE) ;

		pcm_test_short	("short_le.raw"	, SF_ENDIAN_LITTLE	| SF_FORMAT_RAW | SF_FORMAT_PCM_16, SF_FALSE) ;
		pcm_test_short	("short_be.raw"	, SF_ENDIAN_BIG		| SF_FORMAT_RAW | SF_FORMAT_PCM_16, SF_FALSE) ;
		pcm_test_24bit	("24bit_le.raw"	, SF_ENDIAN_LITTLE	| SF_FORMAT_RAW | SF_FORMAT_PCM_24, SF_FALSE) ;
		pcm_test_24bit	("24bit_be.raw"	, SF_ENDIAN_BIG		| SF_FORMAT_RAW | SF_FORMAT_PCM_24, SF_FALSE) ;
		pcm_test_int	("int_le.raw"	, SF_ENDIAN_LITTLE	| SF_FORMAT_RAW | SF_FORMAT_PCM_32, SF_FALSE) ;
		pcm_test_int	("int_be.raw"	, SF_ENDIAN_BIG		| SF_FORMAT_RAW | SF_FORMAT_PCM_32, SF_FALSE) ;

		/* Lite remove start */
		pcm_test_float	("float_le.raw"	, SF_ENDIAN_LITTLE	| SF_FORMAT_RAW | SF_FORMAT_FLOAT , SF_FALSE) ;
		pcm_test_float	("float_be.raw"	, SF_ENDIAN_BIG		| SF_FORMAT_RAW | SF_FORMAT_FLOAT , SF_FALSE) ;

		pcm_test_double	("double_le.raw", SF_ENDIAN_LITTLE	| SF_FORMAT_RAW | SF_FORMAT_DOUBLE, SF_FALSE) ;
		pcm_test_double	("double_be.raw", SF_ENDIAN_BIG		| SF_FORMAT_RAW | SF_FORMAT_DOUBLE, SF_FALSE) ;
		/* Lite remove end */
		test_count++ ;
		} ;

	/* Lite remove start */
	if (do_all || ! strcmp (argv [1], "paf"))
	{	pcm_test_char	("char_le.paf", SF_ENDIAN_LITTLE	| SF_FORMAT_PAF | SF_FORMAT_PCM_S8, SF_FALSE) ;
		pcm_test_char	("char_be.paf", SF_ENDIAN_BIG		| SF_FORMAT_PAF | SF_FORMAT_PCM_S8, SF_FALSE) ;
		pcm_test_short	("short_le.paf", SF_ENDIAN_LITTLE	| SF_FORMAT_PAF | SF_FORMAT_PCM_16, SF_FALSE) ;
		pcm_test_short	("short_be.paf", SF_ENDIAN_BIG		| SF_FORMAT_PAF | SF_FORMAT_PCM_16, SF_FALSE) ;
		pcm_test_24bit	("24bit_le.paf", SF_ENDIAN_LITTLE	| SF_FORMAT_PAF | SF_FORMAT_PCM_24, SF_TRUE) ;
		pcm_test_24bit	("24bit_be.paf", SF_ENDIAN_BIG		| SF_FORMAT_PAF | SF_FORMAT_PCM_24, SF_TRUE) ;
		test_count++ ;
		} ;

	if (do_all || ! strcmp (argv [1], "svx"))
	{	empty_file_test ("empty_char.svx", SF_FORMAT_SVX | SF_FORMAT_PCM_S8) ;
		empty_file_test ("empty_short.svx", SF_FORMAT_SVX | SF_FORMAT_PCM_16) ;

		pcm_test_char	("char.svx" , SF_FORMAT_SVX | SF_FORMAT_PCM_S8, SF_FALSE) ;
		pcm_test_short	("short.svx", SF_FORMAT_SVX | SF_FORMAT_PCM_16, SF_FALSE) ;
		test_count++ ;
		} ;

	if (do_all || ! strcmp (argv [1], "nist"))
	{	pcm_test_short	("short_le.nist", SF_ENDIAN_LITTLE	| SF_FORMAT_NIST | SF_FORMAT_PCM_16, SF_FALSE) ;
		pcm_test_short	("short_be.nist", SF_ENDIAN_BIG		| SF_FORMAT_NIST | SF_FORMAT_PCM_16, SF_FALSE) ;
		pcm_test_24bit	("24bit_le.nist", SF_ENDIAN_LITTLE	| SF_FORMAT_NIST | SF_FORMAT_PCM_24, SF_FALSE) ;
		pcm_test_24bit	("24bit_be.nist", SF_ENDIAN_BIG		| SF_FORMAT_NIST | SF_FORMAT_PCM_24, SF_FALSE) ;
		pcm_test_int	("int_le.nist"	, SF_ENDIAN_LITTLE	| SF_FORMAT_NIST | SF_FORMAT_PCM_32, SF_FALSE) ;
		pcm_test_int 	("int_be.nist"	, SF_ENDIAN_BIG		| SF_FORMAT_NIST | SF_FORMAT_PCM_32, SF_FALSE) ;
		test_count++ ;
		} ;

	if (do_all || ! strcmp (argv [1], "ircam"))
	{	pcm_test_short	("short_be.ircam"	, SF_ENDIAN_BIG	| SF_FORMAT_IRCAM | SF_FORMAT_PCM_16, SF_FALSE) ;
		pcm_test_short	("short_le.ircam"	, SF_ENDIAN_LITTLE	| SF_FORMAT_IRCAM | SF_FORMAT_PCM_16, SF_FALSE) ;
		pcm_test_int	("int_be.ircam"		, SF_ENDIAN_BIG	| SF_FORMAT_IRCAM | SF_FORMAT_PCM_32, SF_FALSE) ;
		pcm_test_int 	("int_le.ircam"		, SF_ENDIAN_LITTLE	| SF_FORMAT_IRCAM | SF_FORMAT_PCM_32, SF_FALSE) ;
		pcm_test_float	("float_be.ircam"	, SF_ENDIAN_BIG	| SF_FORMAT_IRCAM | SF_FORMAT_FLOAT , SF_FALSE) ;
		pcm_test_float	("float_le.ircam"	, SF_ENDIAN_LITTLE	| SF_FORMAT_IRCAM | SF_FORMAT_FLOAT , SF_FALSE) ;
		test_count++ ;
		} ;

	if (do_all || ! strcmp (argv [1], "voc"))
	{	pcm_test_char 	("char.voc" , SF_FORMAT_VOC | SF_FORMAT_PCM_U8, SF_FALSE) ;
		pcm_test_short	("short.voc", SF_FORMAT_VOC | SF_FORMAT_PCM_16, SF_FALSE) ;

		test_count++ ;
		} ;

	if (do_all || ! strcmp (argv [1], "mat4"))
	{	empty_file_test ("empty_short.mat4", SF_FORMAT_MAT4 | SF_FORMAT_PCM_16) ;
		empty_file_test ("empty_float.mat4", SF_FORMAT_MAT4 | SF_FORMAT_FLOAT) ;

		pcm_test_short	("short_be.mat4"	, SF_ENDIAN_BIG	| SF_FORMAT_MAT4 | SF_FORMAT_PCM_16, SF_FALSE) ;
		pcm_test_short	("short_le.mat4"	, SF_ENDIAN_LITTLE	| SF_FORMAT_MAT4 | SF_FORMAT_PCM_16, SF_FALSE) ;
		pcm_test_int	("int_be.mat4"		, SF_ENDIAN_BIG	| SF_FORMAT_MAT4 | SF_FORMAT_PCM_32, SF_FALSE) ;
		pcm_test_int 	("int_le.mat4"		, SF_ENDIAN_LITTLE	| SF_FORMAT_MAT4 | SF_FORMAT_PCM_32, SF_FALSE) ;
		pcm_test_float	("float_be.mat4"	, SF_ENDIAN_BIG	| SF_FORMAT_MAT4 | SF_FORMAT_FLOAT , SF_FALSE) ;
		pcm_test_float	("float_le.mat4"	, SF_ENDIAN_LITTLE	| SF_FORMAT_MAT4 | SF_FORMAT_FLOAT , SF_FALSE) ;
		pcm_test_double	("double_be.mat4"	, SF_ENDIAN_BIG	| SF_FORMAT_MAT4 | SF_FORMAT_DOUBLE, SF_FALSE) ;
		pcm_test_double	("double_le.mat4"	, SF_ENDIAN_LITTLE	| SF_FORMAT_MAT4 | SF_FORMAT_DOUBLE, SF_FALSE) ;
		test_count++ ;
		} ;

	if (do_all || ! strcmp (argv [1], "mat5"))
	{	increment_open_file_count () ;

		empty_file_test ("empty_char.mat5", SF_FORMAT_MAT5 | SF_FORMAT_PCM_U8) ;
		empty_file_test ("empty_short.mat5", SF_FORMAT_MAT5 | SF_FORMAT_PCM_16) ;
		empty_file_test ("empty_float.mat5", SF_FORMAT_MAT5 | SF_FORMAT_FLOAT) ;

		pcm_test_char 	("char_be.mat5"		, SF_ENDIAN_BIG	| SF_FORMAT_MAT5 | SF_FORMAT_PCM_U8, SF_FALSE) ;
		pcm_test_char 	("char_le.mat5"		, SF_ENDIAN_LITTLE	| SF_FORMAT_MAT5 | SF_FORMAT_PCM_U8, SF_FALSE) ;
		pcm_test_short	("short_be.mat5"	, SF_ENDIAN_BIG	| SF_FORMAT_MAT5 | SF_FORMAT_PCM_16, SF_FALSE) ;
		pcm_test_short	("short_le.mat5"	, SF_ENDIAN_LITTLE	| SF_FORMAT_MAT5 | SF_FORMAT_PCM_16, SF_FALSE) ;
		pcm_test_int	("int_be.mat5"		, SF_ENDIAN_BIG	| SF_FORMAT_MAT5 | SF_FORMAT_PCM_32, SF_FALSE) ;
		pcm_test_int 	("int_le.mat5"		, SF_ENDIAN_LITTLE	| SF_FORMAT_MAT5 | SF_FORMAT_PCM_32, SF_FALSE) ;
		pcm_test_float	("float_be.mat5"	, SF_ENDIAN_BIG	| SF_FORMAT_MAT5 | SF_FORMAT_FLOAT , SF_FALSE) ;
		pcm_test_float	("float_le.mat5"	, SF_ENDIAN_LITTLE	| SF_FORMAT_MAT5 | SF_FORMAT_FLOAT , SF_FALSE) ;
		pcm_test_double	("double_be.mat5"	, SF_ENDIAN_BIG	| SF_FORMAT_MAT5 | SF_FORMAT_DOUBLE, SF_FALSE) ;
		pcm_test_double	("double_le.mat5"	, SF_ENDIAN_LITTLE	| SF_FORMAT_MAT5 | SF_FORMAT_DOUBLE, SF_FALSE) ;
		test_count++ ;
		} ;

	if (do_all || ! strcmp (argv [1], "pvf"))
	{	pcm_test_char 	("char.pvf"	, SF_FORMAT_PVF | SF_FORMAT_PCM_S8, SF_FALSE) ;
		pcm_test_short	("short.pvf", SF_FORMAT_PVF | SF_FORMAT_PCM_16, SF_FALSE) ;
		pcm_test_int	("int.pvf"	, SF_FORMAT_PVF | SF_FORMAT_PCM_32, SF_FALSE) ;
		test_count++ ;
		} ;

	if (do_all || ! strcmp (argv [1], "htk"))
	{	pcm_test_short	("short.htk", SF_FORMAT_HTK | SF_FORMAT_PCM_16, SF_FALSE) ;
		test_count++ ;
		} ;

	if (do_all || ! strcmp (argv [1], "avr"))
	{	pcm_test_char 	("char_u8.avr"	, SF_FORMAT_AVR | SF_FORMAT_PCM_U8, SF_FALSE) ;
		pcm_test_char 	("char_s8.avr"	, SF_FORMAT_AVR | SF_FORMAT_PCM_S8, SF_FALSE) ;
		pcm_test_short	("short.avr"	, SF_FORMAT_AVR | SF_FORMAT_PCM_16, SF_FALSE) ;
		test_count++ ;
		} ;
	/* Lite remove end */

	if (do_all || ! strcmp (argv [1], "w64"))
	{	empty_file_test ("empty_char.w64", SF_FORMAT_W64 | SF_FORMAT_PCM_U8) ;
		empty_file_test ("empty_short.w64", SF_FORMAT_W64 | SF_FORMAT_PCM_16) ;
		empty_file_test ("empty_float.w64", SF_FORMAT_W64 | SF_FORMAT_FLOAT) ;

		pcm_test_char	("char.w64"		, SF_FORMAT_W64 | SF_FORMAT_PCM_U8, SF_FALSE) ;
		pcm_test_short	("short.w64"	, SF_FORMAT_W64 | SF_FORMAT_PCM_16, SF_FALSE) ;
		pcm_test_24bit	("24bit.w64"	, SF_FORMAT_W64 | SF_FORMAT_PCM_24, SF_FALSE) ;
		pcm_test_int	("int.w64"		, SF_FORMAT_W64 | SF_FORMAT_PCM_32, SF_FALSE) ;
		/* Lite remove start */
		pcm_test_float	("float.w64"	, SF_FORMAT_W64 | SF_FORMAT_FLOAT , SF_FALSE) ;
		pcm_test_double	("double.w64"	, SF_FORMAT_W64 | SF_FORMAT_DOUBLE, SF_FALSE) ;
		/* Lite remove end */
		test_count++ ;
		} ;

	if (do_all || ! strcmp (argv [1], "sds"))
	{	pcm_test_char	("char.sds"		, SF_FORMAT_SDS | SF_FORMAT_PCM_S8, SF_TRUE) ;
		pcm_test_short	("short.sds"	, SF_FORMAT_SDS | SF_FORMAT_PCM_16, SF_TRUE) ;
		pcm_test_24bit	("24bit.sds"	, SF_FORMAT_SDS | SF_FORMAT_PCM_24, SF_TRUE) ;
		test_count++ ;
		} ;

	if (do_all || ! strcmp (argv [1], "sd2"))
	{	pcm_test_char	("char.sd2"		, SF_FORMAT_SD2 | SF_FORMAT_PCM_S8, SF_TRUE) ;
		pcm_test_short	("short.sd2"	, SF_FORMAT_SD2 | SF_FORMAT_PCM_16, SF_TRUE) ;
		pcm_test_24bit	("24bit.sd2"	, SF_FORMAT_SD2 | SF_FORMAT_PCM_24, SF_TRUE) ;
		test_count++ ;
		} ;

	if (test_count == 0)
	{	printf ("Mono : ************************************\n") ;
		printf ("Mono : *  No '%s' test defined.\n", argv [1]) ;
		printf ("Mono : ************************************\n") ;
		return 1 ;
		} ;

	/* Only open file descriptors should be stdin, stdout and stderr. */
	check_open_file_count_or_die (__LINE__) ;

	return 0 ;
} /* main */

/*============================================================================================
**	Helper functions and macros.
*/

static void	create_short_file (const char *filename) ;

#define	CHAR_ERROR(x,y)		(abs ((x) - (y)) > 255)
#define	INT_ERROR(x,y)		(((x) - (y)) != 0)
#define	TRIBYTE_ERROR(x,y)	(abs ((x) - (y)) > 255)
#define	FLOAT_ERROR(x,y)	(fabs ((x) - (y)) > 1e-5)

#define CONVERT_DATA(k,len,new,orig)					\
			{	for ((k) = 0 ; (k) < (len) ; (k) ++)	\
					(new) [k] = (orig) [k] ;			\
				}


/*======================================================================================
*/

static void
pcm_test_char (const char *filename, int format, int long_file_ok)
{	SNDFILE		*file ;
	SF_INFO		sfinfo ;
	short		*orig, *test ;
	sf_count_t	count ;
	int			k, items, frames, pass, allow_fd ;

	/* Sd2 files cannot be opened from an existing file descriptor. */
	allow_fd = ((format & SF_FORMAT_TYPEMASK) == SF_FORMAT_SD2) ? SF_FALSE : SF_TRUE ;

	print_test_name ("pcm_test_char", filename) ;

	sfinfo.samplerate	= 44100 ;
	sfinfo.frames		= SILLY_WRITE_COUNT ; /* Wrong length. Library should correct this on sf_close. */
	sfinfo.channels		= 1 ;
	sfinfo.format		= format ;

	gen_windowed_sine_double (orig_data, DATA_LENGTH, 32000.0) ;

	orig = (short*) orig_data ;
	test = (short*) test_data ;

	/* Make this a macro so gdb steps over it in one go. */
	CONVERT_DATA (k, DATA_LENGTH, orig, orig_data) ;

	items = DATA_LENGTH ;

	file = test_open_file_or_die (filename, SFM_WRITE, &sfinfo, allow_fd, __LINE__) ;

	sf_set_string (file, SF_STR_ARTIST, "Your name here") ;