comparison src/libsndfile-1.0.27/tests/utils.c @ 40:1df64224f5ac

Current libsndfile source

+/*
+** Copyright (C) 2002-2016 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.
+*/
+
+/*
+**	Utility functions to make writing the test suite easier.
+**
+**	The .c and .h files were generated automagically with Autogen from
+**	the files utils.def and utils.tpl.
+*/
+
+
+
+#include "sfconfig.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <inttypes.h>
+
+#if HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#if (HAVE_DECL_S_IRGRP == 0)
+#include <sf_unistd.h>
+#endif
+
+#include <errno.h>
+#include <string.h>
+#include <ctype.h>
+#include <math.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+
+#include <sndfile.h>
+
+#include "utils.h"
+
+#ifndef	M_PI
+#define	M_PI		3.14159265358979323846264338
+#endif
+
+#define	LOG_BUFFER_SIZE		2048
+
+/*
+**	Neat solution to the Win32/OS2 binary file flage requirement.
+**	If O_BINARY isn't already defined by the inclusion of the system
+**	headers, set it to zero.
+*/
+#ifndef O_BINARY
+#define O_BINARY 0
+#endif
+
+
+void
+gen_windowed_sine_float (float *data, int len, double maximum)
+{	int k ;
+
+	memset (data, 0, len * sizeof (float)) ;
+
+	len = (5 * len) / 6 ;
+
+	for (k = 0 ; k < len ; k++)
+	{	data [k] = sin (2.0 * k * M_PI * 1.0 / 32.0 + 0.4) ;
+
+		/* Apply Hanning Window. */
+		data [k] *= maximum * (0.5 - 0.5 * cos (2.0 * M_PI * k / ((len) - 1))) ;
+		}
+
+	return ;
+} /* gen_windowed_sine_float */
+
+void
+gen_windowed_sine_double (double *data, int len, double maximum)
+{	int k ;
+
+	memset (data, 0, len * sizeof (double)) ;
+
+	len = (5 * len) / 6 ;
+
+	for (k = 0 ; k < len ; k++)
+	{	data [k] = sin (2.0 * k * M_PI * 1.0 / 32.0 + 0.4) ;
+
+		/* Apply Hanning Window. */
+		data [k] *= maximum * (0.5 - 0.5 * cos (2.0 * M_PI * k / ((len) - 1))) ;
+		}
+
+	return ;
+} /* gen_windowed_sine_double */
+
+
+void
+create_short_sndfile (const char *filename, int format, int channels)
+{	short data [2 * 3 * 4 * 5 * 6 * 7] = { 0, } ;
+	SNDFILE *file ;
+	SF_INFO sfinfo ;
+
+	sfinfo.samplerate = 44100 ;
+	sfinfo.channels = channels ;
+	sfinfo.format = format ;
+
+	if ((file = sf_open (filename, SFM_WRITE, &sfinfo)) == NULL)
+	{	printf ("Error (%s, %d) : sf_open failed : %s\n", __FILE__, __LINE__, sf_strerror (file)) ;
+		exit (1) ;
+		} ;
+
+	sf_write_short (file, data, ARRAY_LEN (data)) ;
+
+	sf_close (file) ;
+} /* create_short_sndfile */
+
+void
+check_file_hash_or_die (const char *filename, uint64_t target_hash, int line_num)
+{	static unsigned char buf [4096] ;
+	uint64_t	cksum ;
+	FILE 		*file ;
+	int			k, read_count ;
+
+	memset (buf, 0, sizeof (buf)) ;
+
+	/* The 'b' in the mode string means binary for Win32. */
+	if ((file = fopen (filename, "rb")) == NULL)
+	{	printf ("\n\nLine %d: could not open file '%s'\n\n", line_num, filename) ;
+		exit (1) ;
+		} ;
+
+	cksum = 0 ;
+
+	while ((read_count = fread (buf, 1, sizeof (buf), file)))
+		for (k = 0 ; k < read_count ; k++)
+			cksum = (cksum * 511 + buf [k]) & 0xfffffffffffff ;
+
+	fclose (file) ;
+
+	if (target_hash == 0)
+	{	printf (" 0x%" PRIx64 "\n", cksum) ;
+		return ;
+		} ;
+
+	if (cksum != target_hash)
+	{	printf ("\n\nLine %d: incorrect hash value 0x%" PRIx64 " should be 0x%" PRIx64 ".\n\n", line_num, cksum, target_hash) ;
+		exit (1) ;
+		} ;
+
+	return ;
+} /* check_file_hash_or_die */
+
+void
+print_test_name (const char *test, const char *filename)
+{	int count ;
+
+	if (test == NULL)
+	{	printf (__FILE__ ": bad test of filename parameter.\n") ;
+		exit (1) ;
+		} ;
+
+	if (filename == NULL || strlen (filename) == 0)
+	{	printf ("    %-30s : ", test) ;
+		count = 25 ;
+		}
+	else
+	{	printf ("    %-30s : %s ", test, filename) ;
+		count = 24 - strlen (filename) ;
+		} ;
+
+	while (count -- > 0)
+		putchar ('.') ;
+	putchar (' ') ;
+
+	fflush (stdout) ;
+} /* print_test_name */
+
+void
+dump_data_to_file (const char *filename, const void *data, unsigned int datalen)
+{	FILE *file ;
+
+	if ((file = fopen (filename, "wb")) == NULL)
+	{	printf ("\n\nLine %d : could not open file : %s\n\n", __LINE__, filename) ;
+		exit (1) ;
+		} ;
+
+	if (fwrite (data, 1, datalen, file) != datalen)
+	{	printf ("\n\nLine %d : fwrite failed.\n\n", __LINE__) ;
+		exit (1) ;
+		} ;
+
+	fclose (file) ;
+
+} /* dump_data_to_file */
+
+/*-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
+*/
+
+static char octfilename [] = "error.dat" ;
+
+int
+oct_save_short	(const short *a, const short *b, int len)
+{	FILE 	*file ;
+	int		k ;
+
+	if (! (file = fopen (octfilename, "w")))
+		return 1 ;
+
+	fprintf (file, "# Not created by Octave\n") ;
+
+	fprintf (file, "# name: a\n") ;
+	fprintf (file, "# type: matrix\n") ;
+	fprintf (file, "# rows: %d\n", len) ;
+	fprintf (file, "# columns: 1\n") ;
+
+	for (k = 0 ; k < len ; k++)
+		fprintf (file, "% d" "\n", a [k]) ;
+
+	fprintf (file, "# name: b\n") ;
+	fprintf (file, "# type: matrix\n") ;
+	fprintf (file, "# rows: %d\n", len) ;
+	fprintf (file, "# columns: 1\n") ;
+
+	for (k = 0 ; k < len ; k++)
+		fprintf (file, "% d" "\n", b [k]) ;
+
+	fclose (file) ;
+	return 0 ;
+} /* oct_save_short */
+int
+oct_save_int	(const int *a, const int *b, int len)
+{	FILE 	*file ;
+	int		k ;
+
+	if (! (file = fopen (octfilename, "w")))
+		return 1 ;
+
+	fprintf (file, "# Not created by Octave\n") ;
+
+	fprintf (file, "# name: a\n") ;
+	fprintf (file, "# type: matrix\n") ;
+	fprintf (file, "# rows: %d\n", len) ;
+	fprintf (file, "# columns: 1\n") ;
+
+	for (k = 0 ; k < len ; k++)
+		fprintf (file, "% d" "\n", a [k]) ;
+
+	fprintf (file, "# name: b\n") ;
+	fprintf (file, "# type: matrix\n") ;
+	fprintf (file, "# rows: %d\n", len) ;
+	fprintf (file, "# columns: 1\n") ;
+
+	for (k = 0 ; k < len ; k++)
+		fprintf (file, "% d" "\n", b [k]) ;
+
+	fclose (file) ;
+	return 0 ;
+} /* oct_save_int */
+int
+oct_save_float	(const float *a, const float *b, int len)
+{	FILE 	*file ;
+	int		k ;
+
+	if (! (file = fopen (octfilename, "w")))
+		return 1 ;
+
+	fprintf (file, "# Not created by Octave\n") ;
+
+	fprintf (file, "# name: a\n") ;
+	fprintf (file, "# type: matrix\n") ;
+	fprintf (file, "# rows: %d\n", len) ;
+	fprintf (file, "# columns: 1\n") ;
+
+	for (k = 0 ; k < len ; k++)
+		fprintf (file, "% g" "\n", a [k]) ;
+
+	fprintf (file, "# name: b\n") ;
+	fprintf (file, "# type: matrix\n") ;
+	fprintf (file, "# rows: %d\n", len) ;
+	fprintf (file, "# columns: 1\n") ;
+
+	for (k = 0 ; k < len ; k++)
+		fprintf (file, "% g" "\n", b [k]) ;
+
+	fclose (file) ;
+	return 0 ;
+} /* oct_save_float */
+int
+oct_save_double	(const double *a, const double *b, int len)
+{	FILE 	*file ;
+	int		k ;
+
+	if (! (file = fopen (octfilename, "w")))
+		return 1 ;
+
+	fprintf (file, "# Not created by Octave\n") ;
+
+	fprintf (file, "# name: a\n") ;
+	fprintf (file, "# type: matrix\n") ;
+	fprintf (file, "# rows: %d\n", len) ;
+	fprintf (file, "# columns: 1\n") ;
+
+	for (k = 0 ; k < len ; k++)
+		fprintf (file, "% g" "\n", a [k]) ;
+
+	fprintf (file, "# name: b\n") ;
+	fprintf (file, "# type: matrix\n") ;
+	fprintf (file, "# rows: %d\n", len) ;
+	fprintf (file, "# columns: 1\n") ;
+
+	for (k = 0 ; k < len ; k++)
+		fprintf (file, "% g" "\n", b [k]) ;
+
+	fclose (file) ;
+	return 0 ;
+} /* oct_save_double */
+
+
+void
+check_log_buffer_or_die (SNDFILE *file, int line_num)
+{	static char	buffer [LOG_BUFFER_SIZE] ;
+	int			count ;
+
+	memset (buffer, 0, sizeof (buffer)) ;
+
+	/* Get the log buffer data. */
+	count = sf_command	(file, SFC_GET_LOG_INFO, buffer, LOG_BUFFER_SIZE) ;
+
+	if (LOG_BUFFER_SIZE - count < 2)
+	{	printf ("\n\nLine %d : Possible long log buffer.\n", line_num) ;
+		exit (1) ;
+		}
+
+	/* Look for "Should" */
+	if (strstr (buffer, "ould"))
+	{	printf ("\n\nLine %d : Log buffer contains `ould'. Dumping.\n", line_num) ;
+		puts (buffer) ;
+		exit (1) ;
+		} ;
+
+	/* Look for "**" */
+	if (strstr (buffer, "*"))
+	{	printf ("\n\nLine %d : Log buffer contains `*'. Dumping.\n", line_num) ;
+		puts (buffer) ;
+		exit (1) ;
+		} ;
+
+	/* Look for "Should" */
+	if (strstr (buffer, "nknown marker"))
+	{	printf ("\n\nLine %d : Log buffer contains `nknown marker'. Dumping.\n", line_num) ;
+		puts (buffer) ;
+		exit (1) ;
+		} ;
+
+	return ;
+} /* check_log_buffer_or_die */
+
+int
+string_in_log_buffer (SNDFILE *file, const char *s)
+{	static char	buffer [LOG_BUFFER_SIZE] ;
+	int			count ;
+
+	memset (buffer, 0, sizeof (buffer)) ;
+
+	/* Get the log buffer data. */
+	count = sf_command	(file, SFC_GET_LOG_INFO, buffer, LOG_BUFFER_SIZE) ;
+
+	if (LOG_BUFFER_SIZE - count < 2)
+	{	printf ("Possible long log buffer.\n") ;
+		exit (1) ;
+		}
+
+	/* Look for string */
+	return strstr (buffer, s) ? SF_TRUE : SF_FALSE ;
+} /* string_in_log_buffer */
+
+void
+hexdump_file (const char * filename, sf_count_t offset, sf_count_t length)
+{
+	FILE * file ;
+	char buffer [16] ;
+	int k, m, ch, readcount ;
+
+	if (length > 1000000)
+	{	printf ("\n\nError : length (%" PRId64 ") too long.\n\n", offset) ;
+		exit (1) ;
+		} ;
+
+	if ((file = fopen (filename, "r")) == NULL)
+	{	printf ("\n\nError : hexdump_file (%s) could not open file for read.\n\n", filename) ;
+		exit (1) ;
+		} ;
+
+	if (fseek (file, offset, SEEK_SET) != 0)
+	{	printf ("\n\nError : fseek(file, %" PRId64 ", SEEK_SET) failed : %s\n\n", offset, strerror (errno)) ;
+		exit (1) ;
+		} ;
+
+	puts ("\n\n") ;
+
+	for (k = 0 ; k < length ; k+= sizeof (buffer))
+	{	readcount = fread (buffer, 1, sizeof (buffer), file) ;
+
+		printf ("%08" PRIx64 " : ", offset + k) ;
+
+		for (m = 0 ; m < readcount ; m++)
+			printf ("%02x ", buffer [m] & 0xFF) ;
+
+		for (m = readcount ; m < SIGNED_SIZEOF (buffer) ; m++)
+			printf ("   ") ;
+
+		printf ("  ") ;
+		for (m = 0 ; m < readcount ; m++)
+		{	ch = isprint (buffer [m]) ? buffer [m] : '.' ;
+			putchar (ch) ;
+			} ;
+
+		if (readcount < SIGNED_SIZEOF (buffer))
+			break ;
+
+		putchar ('\n') ;
+		} ;
+
+	puts ("\n") ;
+
+	fclose (file) ;
+} /* hexdump_file */
+
+void
+dump_log_buffer (SNDFILE *file)
+{	static char	buffer [LOG_BUFFER_SIZE] ;
+
+	memset (buffer, 0, sizeof (buffer)) ;
+
+	/* Get the log buffer data. */
+	sf_command	(file, SFC_GET_LOG_INFO, buffer, LOG_BUFFER_SIZE) ;
+
+	if (strlen (buffer) < 1)
+		puts ("Log buffer empty.\n") ;
+	else
+		puts (buffer) ;
+
+	return ;
+} /* dump_log_buffer */
+
+void
+test_sf_format_or_die (const SF_INFO *info, int line_num)
+{	int res ;
+
+	if ((res = sf_format_check (info)) != 1)
+	{	printf ("\n\nLine %d : sf_format_check returned error (%d)\n\n", line_num,res) ;
+		exit (1) ;
+		} ;
+
+	return ;
+} /* test_sf_format_or_die */
+
+SNDFILE *
+test_open_file_or_die (const char *filename, int mode, SF_INFO *sfinfo, int allow_fd, int line_num)
+{	static int count = 0 ;
+
+	SNDFILE *file ;
+	const char *modestr, *func_name ;
+	int oflags = 0, omode = 0, err ;
+
+	/*
+	** Need to test both sf_open() and sf_open_fd().
+	** Do so alternately.
+	*/
+	switch (mode)
+	{	case SFM_READ :
+				modestr = "SFM_READ" ;
+				oflags = O_RDONLY | O_BINARY ;
+				omode = 0 ;
+				break ;
+
+		case SFM_WRITE :
+				modestr = "SFM_WRITE" ;
+				oflags = O_WRONLY | O_CREAT | O_TRUNC | O_BINARY ;
+				omode = S_IRUSR | S_IWUSR | S_IRGRP ;
+				break ;
+
+		case SFM_RDWR :
+				modestr = "SFM_RDWR" ;
+				oflags = O_RDWR | O_CREAT | O_BINARY ;
+				omode = S_IRUSR | S_IWUSR | S_IRGRP ;
+				break ;
+		default :
+				printf ("\n\nLine %d: Bad mode.\n", line_num) ;
+				fflush (stdout) ;
+				exit (1) ;
+		} ;
+
+	if (OS_IS_WIN32)
+	{	/* Windows does not understand and ignores the S_IRGRP flag, but Wine
+		** gives a run time warning message, so just clear it.
+		*/
+		omode &= ~S_IRGRP ;
+		} ;
+
+	if (allow_fd && ((++count) & 1) == 1)
+	{	int fd ;
+
+		/* Only use the three argument open() function if omode != 0. */
+		fd = (omode == 0) ? open (filename, oflags) : open (filename, oflags, omode) ;
+
+		if (fd < 0)
+		{	printf ("\n\n%s : open failed : %s\n", __func__, strerror (errno)) ;
+			exit (1) ;
+			} ;
+
+		func_name = "sf_open_fd" ;
+		file = sf_open_fd (fd, mode, sfinfo, SF_TRUE) ;
+		}
+	else
+	{	func_name = "sf_open" ;
+		file = sf_open (filename, mode, sfinfo) ;
+		} ;
+
+	if (file == NULL)
+	{	printf ("\n\nLine %d: %s (%s) failed : %s\n\n", line_num, func_name, modestr, sf_strerror (NULL)) ;
+		dump_log_buffer (file) ;
+		exit (1) ;
+		} ;
+
+	err = sf_error (file) ;
+	if (err != SF_ERR_NO_ERROR)
+	{	printf ("\n\nLine %d : sf_error : %s\n\n", line_num, sf_error_number (err)) ;
+		dump_log_buffer (file) ;
+		exit (1) ;
+		} ;
+
+	return file ;
+} /* test_open_file_or_die */
+
+void
+test_read_write_position_or_die (SNDFILE *file, int line_num, int pass, sf_count_t read_pos, sf_count_t write_pos)
+{	sf_count_t pos ;
+
+	/* Check the current read position. */
+	if (read_pos >= 0 && (pos = sf_seek (file, 0, SEEK_CUR | SFM_READ)) != read_pos)
+	{	printf ("\n\nLine %d ", line_num) ;
+		if (pass > 0)
+			printf ("(pass %d): ", pass) ;
+		printf ("Read position (%" PRId64 ") should be %" PRId64 ".\n", pos, read_pos) ;
+		exit (1) ;
+		} ;
+
+	/* Check the current write position. */
+	if (write_pos >= 0 && (pos = sf_seek (file, 0, SEEK_CUR | SFM_WRITE)) != write_pos)
+	{	printf ("\n\nLine %d", line_num) ;
+		if (pass > 0)
+			printf (" (pass %d)", pass) ;
+		printf (" : Write position (%" PRId64 ") should be %" PRId64 ".\n", pos, write_pos) ;
+		exit (1) ;
+		} ;
+
+	return ;
+} /* test_read_write_position */
+
+void
+test_seek_or_die (SNDFILE *file, sf_count_t offset, int whence, sf_count_t new_pos, int channels, int line_num)
+{	sf_count_t	position ;
+	const char	*channel_name, *whence_name ;
+
+	switch (whence)
+	{	case SEEK_SET :
+				whence_name = "SEEK_SET" ;
+				break ;
+		case SEEK_CUR :
+				whence_name = "SEEK_CUR" ;
+				break ;
+		case SEEK_END :
+				whence_name = "SEEK_END" ;
+				break ;
+
+		/* SFM_READ */
+		case SEEK_SET | SFM_READ :
+				whence_name = "SFM_READ | SEEK_SET" ;
+				break ;
+		case SEEK_CUR | SFM_READ :
+				whence_name = "SFM_READ | SEEK_CUR" ;
+				break ;
+		case SEEK_END | SFM_READ :
+				whence_name = "SFM_READ | SEEK_END" ;
+				break ;
+
+		/* SFM_WRITE */
+		case SEEK_SET | SFM_WRITE :
+				whence_name = "SFM_WRITE | SEEK_SET" ;
+				break ;
+		case SEEK_CUR | SFM_WRITE :
+				whence_name = "SFM_WRITE | SEEK_CUR" ;
+				break ;
+		case SEEK_END | SFM_WRITE :
+				whence_name = "SFM_WRITE | SEEK_END" ;
+				break ;
+
+		default :
+				printf ("\n\nLine %d: bad whence parameter.\n", line_num) ;
+				exit (1) ;
+		} ;
+
+	channel_name = (channels == 1) ? "Mono" : "Stereo" ;
+
+	if ((position = sf_seek (file, offset, whence)) != new_pos)
+	{	printf ("\n\nLine %d : %s : sf_seek (file, %" PRId64 ", %s) returned %" PRId64 " (should be %" PRId64 ").\n\n",
+					line_num, channel_name, offset, whence_name, position, new_pos) ;
+		exit (1) ;
+		} ;
+
+} /* test_seek_or_die */
+
+
+
+void
+test_read_short_or_die (SNDFILE *file, int pass, short *test, sf_count_t items, int line_num)
+{	sf_count_t count ;
+
+	if ((count = sf_read_short (file, test, items)) != items)
+	{	printf ("\n\nLine %d", line_num) ;
+		if (pass > 0)
+			printf (" (pass %d)", pass) ;
+		printf (" : sf_read_short failed with short read (%" PRId64 " => %" PRId64 ").\n",
+						items, count) ;
+		fflush (stdout) ;
+		puts (sf_strerror (file)) ;
+		exit (1) ;
+		} ;
+
+	return ;
+} /* test_read_short_or_die */
+
+void
+test_read_int_or_die (SNDFILE *file, int pass, int *test, sf_count_t items, int line_num)
+{	sf_count_t count ;
+
+	if ((count = sf_read_int (file, test, items)) != items)
+	{	printf ("\n\nLine %d", line_num) ;
+		if (pass > 0)
+			printf (" (pass %d)", pass) ;
+		printf (" : sf_read_int failed with short read (%" PRId64 " => %" PRId64 ").\n",
+						items, count) ;
+		fflush (stdout) ;
+		puts (sf_strerror (file)) ;
+		exit (1) ;
+		} ;
+
+	return ;
+} /* test_read_int_or_die */
+
+void
+test_read_float_or_die (SNDFILE *file, int pass, float *test, sf_count_t items, int line_num)
+{	sf_count_t count ;
+
+	if ((count = sf_read_float (file, test, items)) != items)
+	{	printf ("\n\nLine %d", line_num) ;
+		if (pass > 0)
+			printf (" (pass %d)", pass) ;
+		printf (" : sf_read_float failed with short read (%" PRId64 " => %" PRId64 ").\n",
+						items, count) ;
+		fflush (stdout) ;
+		puts (sf_strerror (file)) ;
+		exit (1) ;
+		} ;
+
+	return ;
+} /* test_read_float_or_die */
+
+void
+test_read_double_or_die (SNDFILE *file, int pass, double *test, sf_count_t items, int line_num)
+{	sf_count_t count ;
+
+	if ((count = sf_read_double (file, test, items)) != items)
+	{	printf ("\n\nLine %d", line_num) ;
+		if (pass > 0)
+			printf (" (pass %d)", pass) ;
+		printf (" : sf_read_double failed with short read (%" PRId64 " => %" PRId64 ").\n",
+						items, count) ;
+		fflush (stdout) ;
+		puts (sf_strerror (file)) ;
+		exit (1) ;
+		} ;
+
+	return ;
+} /* test_read_double_or_die */
+
+
+void
+test_readf_short_or_die (SNDFILE *file, int pass, short *test, sf_count_t frames, int line_num)
+{	sf_count_t count ;
+
+	if ((count = sf_readf_short (file, test, frames)) != frames)
+	{	printf ("\n\nLine %d", line_num) ;
+		if (pass > 0)
+			printf (" (pass %d)", pass) ;
+		printf (" : sf_readf_short failed with short readf (%" PRId64 " => %" PRId64 ").\n",
+						frames, count) ;
+		fflush (stdout) ;
+		puts (sf_strerror (file)) ;
+		exit (1) ;
+		} ;
+
+	return ;
+} /* test_readf_short_or_die */
+
+void
+test_readf_int_or_die (SNDFILE *file, int pass, int *test, sf_count_t frames, int line_num)
+{	sf_count_t count ;
+
+	if ((count = sf_readf_int (file, test, frames)) != frames)
+	{	printf ("\n\nLine %d", line_num) ;
+		if (pass > 0)
+			printf (" (pass %d)", pass) ;
+		printf (" : sf_readf_int failed with short readf (%" PRId64 " => %" PRId64 ").\n",
+						frames, count) ;
+		fflush (stdout) ;
+		puts (sf_strerror (file)) ;
+		exit (1) ;
+		} ;
+
+	return ;
+} /* test_readf_int_or_die */
+
+void
+test_readf_float_or_die (SNDFILE *file, int pass, float *test, sf_count_t frames, int line_num)
+{	sf_count_t count ;
+
+	if ((count = sf_readf_float (file, test, frames)) != frames)
+	{	printf ("\n\nLine %d", line_num) ;
+		if (pass > 0)
+			printf (" (pass %d)", pass) ;
+		printf (" : sf_readf_float failed with short readf (%" PRId64 " => %" PRId64 ").\n",
+						frames, count) ;
+		fflush (stdout) ;
+		puts (sf_strerror (file)) ;
+		exit (1) ;
+		} ;
+
+	return ;
+} /* test_readf_float_or_die */
+
+void
+test_readf_double_or_die (SNDFILE *file, int pass, double *test, sf_count_t frames, int line_num)
+{	sf_count_t count ;
+
+	if ((count = sf_readf_double (file, test, frames)) != frames)
+	{	printf ("\n\nLine %d", line_num) ;
+		if (pass > 0)
+			printf (" (pass %d)", pass) ;
+		printf (" : sf_readf_double failed with short readf (%" PRId64 " => %" PRId64 ").\n",
+						frames, count) ;
+		fflush (stdout) ;
+		puts (sf_strerror (file)) ;
+		exit (1) ;
+		} ;
+
+	return ;
+} /* test_readf_double_or_die */
+
+
+void
+test_read_raw_or_die (SNDFILE *file, int pass, void *test, sf_count_t items, int line_num)
+{	sf_count_t count ;
+
+	if ((count = sf_read_raw (file, test, items)) != items)
+	{	printf ("\n\nLine %d", line_num) ;
+		if (pass > 0)
+			printf (" (pass %d)", pass) ;
+		printf (" : sf_read_raw failed with short read (%" PRId64 " => %" PRId64 ").\n", items, count) ;
+		fflush (stdout) ;
+		puts (sf_strerror (file)) ;
+		exit (1) ;
+		} ;
+
+	return ;
+} /* test_read_raw_or_die */
+
+
+
+void
+test_write_short_or_die (SNDFILE *file, int pass, const short *test, sf_count_t items, int line_num)
+{	sf_count_t count ;
+
+	if ((count = sf_write_short (file, test, items)) != items)
+	{	printf ("\n\nLine %d", line_num) ;
+		if (pass > 0)
+			printf (" (pass %d)", pass) ;
+		printf (" : sf_write_short failed with short write (%" PRId64 " => %" PRId64 ").\n",
+						items, count) ;
+		fflush (stdout) ;
+		puts (sf_strerror (file)) ;
+		exit (1) ;
+		} ;
+
+	return ;
+} /* test_write_short_or_die */
+
+void
+test_write_int_or_die (SNDFILE *file, int pass, const int *test, sf_count_t items, int line_num)
+{	sf_count_t count ;
+
+	if ((count = sf_write_int (file, test, items)) != items)
+	{	printf ("\n\nLine %d", line_num) ;
+		if (pass > 0)
+			printf (" (pass %d)", pass) ;
+		printf (" : sf_write_int failed with short write (%" PRId64 " => %" PRId64 ").\n",
+						items, count) ;
+		fflush (stdout) ;
+		puts (sf_strerror (file)) ;
+		exit (1) ;
+		} ;
+
+	return ;
+} /* test_write_int_or_die */
+
+void
+test_write_float_or_die (SNDFILE *file, int pass, const float *test, sf_count_t items, int line_num)
+{	sf_count_t count ;
+
+	if ((count = sf_write_float (file, test, items)) != items)
+	{	printf ("\n\nLine %d", line_num) ;
+		if (pass > 0)
+			printf (" (pass %d)", pass) ;
+		printf (" : sf_write_float failed with short write (%" PRId64 " => %" PRId64 ").\n",
+						items, count) ;
+		fflush (stdout) ;
+		puts (sf_strerror (file)) ;
+		exit (1) ;
+		} ;
+
+	return ;
+} /* test_write_float_or_die */
+
+void
+test_write_double_or_die (SNDFILE *file, int pass, const double *test, sf_count_t items, int line_num)
+{	sf_count_t count ;
+
+	if ((count = sf_write_double (file, test, items)) != items)
+	{	printf ("\n\nLine %d", line_num) ;
+		if (pass > 0)
+			printf (" (pass %d)", pass) ;
+		printf (" : sf_write_double failed with short write (%" PRId64 " => %" PRId64 ").\n",
+						items, count) ;
+		fflush (stdout) ;
+		puts (sf_strerror (file)) ;
+		exit (1) ;
+		} ;
+
+	return ;
+} /* test_write_double_or_die */
+
+
+void
+test_writef_short_or_die (SNDFILE *file, int pass, const short *test, sf_count_t frames, int line_num)
+{	sf_count_t count ;
+
+	if ((count = sf_writef_short (file, test, frames)) != frames)
+	{	printf ("\n\nLine %d", line_num) ;
+		if (pass > 0)
+			printf (" (pass %d)", pass) ;
+		printf (" : sf_writef_short failed with short writef (%" PRId64 " => %" PRId64 ").\n",
+						frames, count) ;
+		fflush (stdout) ;
+		puts (sf_strerror (file)) ;
+		exit (1) ;
+		} ;
+
+	return ;
+} /* test_writef_short_or_die */
+
+void
+test_writef_int_or_die (SNDFILE *file, int pass, const int *test, sf_count_t frames, int line_num)
+{	sf_count_t count ;
+
+	if ((count = sf_writef_int (file, test, frames)) != frames)
+	{	printf ("\n\nLine %d", line_num) ;
+		if (pass > 0)
+			printf (" (pass %d)", pass) ;
+		printf (" : sf_writef_int failed with short writef (%" PRId64 " => %" PRId64 ").\n",
+						frames, count) ;
+		fflush (stdout) ;
+		puts (sf_strerror (file)) ;
+		exit (1) ;
+		} ;
+
+	return ;
+} /* test_writef_int_or_die */
+
+void
+test_writef_float_or_die (SNDFILE *file, int pass, const float *test, sf_count_t frames, int line_num)
+{	sf_count_t count ;
+
+	if ((count = sf_writef_float (file, test, frames)) != frames)
+	{	printf ("\n\nLine %d", line_num) ;
+		if (pass > 0)
+			printf (" (pass %d)", pass) ;
+		printf (" : sf_writef_float failed with short writef (%" PRId64 " => %" PRId64 ").\n",
+						frames, count) ;
+		fflush (stdout) ;
+		puts (sf_strerror (file)) ;
+		exit (1) ;
+		} ;
+
+	return ;
+} /* test_writef_float_or_die */
+
+void
+test_writef_double_or_die (SNDFILE *file, int pass, const double *test, sf_count_t frames, int line_num)
+{	sf_count_t count ;
+
+	if ((count = sf_writef_double (file, test, frames)) != frames)
+	{	printf ("\n\nLine %d", line_num) ;
+		if (pass > 0)
+			printf (" (pass %d)", pass) ;
+		printf (" : sf_writef_double failed with short writef (%" PRId64 " => %" PRId64 ").\n",
+						frames, count) ;
+		fflush (stdout) ;
+		puts (sf_strerror (file)) ;
+		exit (1) ;
+		} ;
+
+	return ;
+} /* test_writef_double_or_die */
+
+
+void
+test_write_raw_or_die (SNDFILE *file, int pass, const void *test, sf_count_t items, int line_num)
+{	sf_count_t count ;
+
+	if ((count = sf_write_raw (file, test, items)) != items)
+	{	printf ("\n\nLine %d", line_num) ;
+		if (pass > 0)
+			printf (" (pass %d)", pass) ;
+		printf (" : sf_write_raw failed with short write (%" PRId64 " => %" PRId64 ").\n", items, count) ;
+		fflush (stdout) ;
+		puts (sf_strerror (file)) ;
+		exit (1) ;
+		} ;
+
+	return ;
+} /* test_write_raw_or_die */
+
+
+void
+compare_short_or_die (const short *expected, const short *actual, unsigned count, int line_num)
+{
+	unsigned k ;
+
+	for (k = 0 ; k < count ; k++)
+		if (expected [k] != actual [k])
+		{	printf ("\n\nLine %d : Error at index %d, got " "% d" ", should be " "% d" ".\n\n", line_num, k, actual [k], expected [k]) ;
+			exit (1) ;
+			} ;
+
+	return ;
+} /* compare_short_or_die */
+void
+compare_int_or_die (const int *expected, const int *actual, unsigned count, int line_num)
+{
+	unsigned k ;
+
+	for (k = 0 ; k < count ; k++)
+		if (expected [k] != actual [k])
+		{	printf ("\n\nLine %d : Error at index %d, got " "% d" ", should be " "% d" ".\n\n", line_num, k, actual [k], expected [k]) ;
+			exit (1) ;
+			} ;
+
+	return ;
+} /* compare_int_or_die */
+void
+compare_float_or_die (const float *expected, const float *actual, unsigned count, int line_num)
+{
+	unsigned k ;
+
+	for (k = 0 ; k < count ; k++)
+		if (expected [k] != actual [k])
+		{	printf ("\n\nLine %d : Error at index %d, got " "% g" ", should be " "% g" ".\n\n", line_num, k, actual [k], expected [k]) ;
+			exit (1) ;
+			} ;
+
+	return ;
+} /* compare_float_or_die */
+void
+compare_double_or_die (const double *expected, const double *actual, unsigned count, int line_num)
+{
+	unsigned k ;
+
+	for (k = 0 ; k < count ; k++)
+		if (expected [k] != actual [k])
+		{	printf ("\n\nLine %d : Error at index %d, got " "% g" ", should be " "% g" ".\n\n", line_num, k, actual [k], expected [k]) ;
+			exit (1) ;
+			} ;
+
+	return ;
+} /* compare_double_or_die */
+
+
+
+void
+delete_file (int format, const char *filename)
+{	char rsrc_name [512], *fname ;
+
+	unlink (filename) ;
+
+	if ((format & SF_FORMAT_TYPEMASK) != SF_FORMAT_SD2)
+		return ;
+
+	/*
+	** Now try for a resource fork stored as a separate file.
+	** Grab the un-adulterated filename again.
+	*/
+	snprintf (rsrc_name, sizeof (rsrc_name), "%s", filename) ;
+
+	if ((fname = strrchr (rsrc_name, '/')) != NULL)
+		fname ++ ;
+	else if ((fname = strrchr (rsrc_name, '\\')) != NULL)
+		fname ++ ;
+	else
+		fname = rsrc_name ;
+
+	memmove (fname + 2, fname, strlen (fname) + 1) ;
+	fname [0] = '.' ;
+	fname [1] = '_' ;
+
+	unlink (rsrc_name) ;
+} /* delete_file */
+
+static int allowed_open_files = -1 ;
+
+void
+count_open_files (void)
+{
+#if OS_IS_WIN32
+	return ;
+#else
+	int k, count = 0 ;
+	struct stat statbuf ;
+
+	if (allowed_open_files > 0)
+		return ;
+
+	for (k = 0 ; k < 1024 ; k++)
+		if (fstat (k, &statbuf) == 0)
+			count ++ ;
+
+	allowed_open_files = count ;
+#endif
+} /* count_open_files */
+
+void
+increment_open_file_count (void)
+{	allowed_open_files ++ ;
+} /* increment_open_file_count */
+
+void
+check_open_file_count_or_die (int lineno)
+{
+#if OS_IS_WIN32
+	(void) lineno ;
+	return ;
+#else
+	int k, count = 0 ;
+	struct stat statbuf ;
+
+	if (allowed_open_files < 0)
+		count_open_files () ;
+
+	for (k = 0 ; k < 1024 ; k++)
+		if (fstat (k, &statbuf) == 0)
+			count ++ ;
+
+	if (count > allowed_open_files)
+	{	printf ("\nLine %d : number of open files (%d) > allowed (%d).\n\n", lineno, count, allowed_open_files) ;
+		exit (1) ;
+		} ;
+#endif
+} /* check_open_file_count_or_die */
+
+void
+write_mono_file (const char * filename, int format, int srate, float * output, int len)
+{	SNDFILE * file ;
+	SF_INFO sfinfo ;
+
+	memset (&sfinfo, 0, sizeof (sfinfo)) ;
+
+	sfinfo.samplerate = srate ;
+	sfinfo.channels = 1 ;
+	sfinfo.format = format ;
+
+	if ((file = sf_open (filename, SFM_WRITE, &sfinfo)) == NULL)
+	{	printf ("sf_open (%s) : %s\n", filename, sf_strerror (NULL)) ;
+		exit (1) ;
+		} ;
+
+	sf_write_float (file, output, len) ;
+
+	sf_close (file) ;
+} /* write_mono_file */
+
+void
+gen_lowpass_signal_float (float *data, int len)
+{	int64_t value = 0x1243456 ;
+	double sample, last_val = 0.0 ;
+	int k ;
+
+	for (k = 0 ; k < len ; k++)
+	{	/* Not a crypto quality RNG. */
+		value = (11117 * value + 211231) & 0xffffffff ;
+		value = (11117 * value + 211231) & 0xffffffff ;
+		value = (11117 * value + 211231) & 0xffffffff ;
+
+		sample = value / (0x7fffffff * 1.000001) ;
+		sample = 0.2 * sample - 0.9 * last_val ;
+
+		last_val = sample ;
+
+		data [k] = 0.5 * (sample + sin (2.0 * k * M_PI * 1.0 / 32.0)) ;
+		} ;
+
+} /* gen_lowpass_signal_float */
+
+
+/*
+**	Windows is fucked.
+**	If a file is opened R/W and data is written to it, then fstat will return
+**	the correct file length, but stat will return zero.
+*/
+
+sf_count_t
+file_length (const char * fname)
+{	struct stat data ;
+
+	if (stat (fname, &data) != 0)
+		return 0 ;
+
+	return (sf_count_t) data.st_size ;
+} /* file_length */
+
+sf_count_t
+file_length_fd (int fd)
+{	struct stat data ;
+
+	memset (&data, 0, sizeof (data)) ;
+	if (fstat (fd, &data) != 0)
+		return 0 ;
+
+	return (sf_count_t) data.st_size ;
+} /* file_length_fd */
+
+
+
+