comparison src/libsndfile-1.0.27/tests/header_test.c @ 125:cd6cdf86811e

Current libsndfile source

+/*
+** Copyright (C) 2001-2012 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 "sfconfig.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <inttypes.h>
+#include <math.h>
+
+#include <sys/stat.h>
+
+#if HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#if (HAVE_DECL_S_IRGRP == 0)
+#include <sf_unistd.h>
+#endif
+
+#if (defined (WIN32) || defined (_WIN32))
+#include <io.h>
+#include <direct.h>
+#endif
+
+#include	<sndfile.h>
+
+#include	"utils.h"
+
+#define	BUFFER_LEN		(1 << 10)
+#define LOG_BUFFER_SIZE	1024
+
+static void	update_header_test (const char *filename, int typemajor) ;
+
+static void	update_seek_short_test	(const char *filename, int filetype) ;
+static void	update_seek_int_test	(const char *filename, int filetype) ;
+static void	update_seek_float_test	(const char *filename, int filetype) ;
+static void	update_seek_double_test	(const char *filename, int filetype) ;
+
+
+static void extra_header_test (const char *filename, int filetype) ;
+
+static void header_shrink_test (const char *filename, int filetype) ;
+
+/* Force the start of this buffer to be double aligned. Sparc-solaris will
+** choke if its not.
+*/
+static	int	data_out [BUFFER_LEN] ;
+static	int	data_in	[BUFFER_LEN] ;
+
+int
+main (int argc, char *argv [])
+{	int		do_all = 0 ;
+	int		test_count = 0 ;
+
+	if (argc != 2)
+	{	printf ("Usage : %s <test>\n", argv [0]) ;
+		printf ("    Where <test> is one of the following:\n") ;
+		printf ("           wav  - test WAV file peak chunk\n") ;
+		printf ("           aiff - test AIFF file PEAK chunk\n") ;
+		printf ("           all  - perform all tests\n") ;
+		exit (1) ;
+		} ;
+
+	do_all= !strcmp (argv [1], "all") ;
+
+	if (do_all || ! strcmp (argv [1], "wav"))
+	{	update_header_test ("header.wav", SF_FORMAT_WAV) ;
+		update_seek_short_test ("header_short.wav", SF_FORMAT_WAV) ;
+		update_seek_int_test ("header_int.wav", SF_FORMAT_WAV) ;
+		update_seek_float_test ("header_float.wav", SF_FORMAT_WAV) ;
+		update_seek_double_test ("header_double.wav", SF_FORMAT_WAV) ;
+		header_shrink_test ("header_shrink.wav", SF_FORMAT_WAV) ;
+		extra_header_test ("extra.wav", SF_FORMAT_WAV) ;
+
+		update_header_test ("header.wavex", SF_FORMAT_WAVEX) ;
+		update_seek_short_test ("header_short.wavex", SF_FORMAT_WAVEX) ;
+		update_seek_int_test ("header_int.wavex", SF_FORMAT_WAVEX) ;
+		update_seek_float_test ("header_float.wavex", SF_FORMAT_WAVEX) ;
+		update_seek_double_test ("header_double.wavex", SF_FORMAT_WAVEX) ;
+		header_shrink_test ("header_shrink.wavex", SF_FORMAT_WAVEX) ;
+		extra_header_test ("extra.wavex", SF_FORMAT_WAVEX) ;
+		test_count++ ;
+		} ;
+
+	if (do_all || ! strcmp (argv [1], "aiff"))
+	{	update_header_test ("header.aiff", SF_FORMAT_AIFF) ;
+		update_seek_short_test ("header_short.aiff", SF_FORMAT_AIFF) ;
+		update_seek_int_test ("header_int.aiff", SF_FORMAT_AIFF) ;
+		update_seek_float_test ("header_float.aiff", SF_FORMAT_AIFF) ;
+		update_seek_double_test ("header_double.aiff", SF_FORMAT_AIFF) ;
+		header_shrink_test ("header_shrink.wav", SF_FORMAT_AIFF) ;
+		extra_header_test ("extra.aiff", SF_FORMAT_AIFF) ;
+		test_count++ ;
+		} ;
+
+	if (do_all || ! strcmp (argv [1], "au"))
+	{	update_header_test ("header.au", SF_FORMAT_AU) ;
+		update_seek_short_test ("header_short.au", SF_FORMAT_AU) ;
+		update_seek_int_test ("header_int.au", SF_FORMAT_AU) ;
+		update_seek_float_test ("header_float.au", SF_FORMAT_AU) ;
+		update_seek_double_test ("header_double.au", SF_FORMAT_AU) ;
+		test_count++ ;
+		} ;
+
+	if (do_all || ! strcmp (argv [1], "caf"))
+	{	update_header_test ("header.caf", SF_FORMAT_CAF) ;
+		update_seek_short_test ("header_short.caf", SF_FORMAT_CAF) ;
+		update_seek_int_test ("header_int.caf", SF_FORMAT_CAF) ;
+		update_seek_float_test ("header_float.caf", SF_FORMAT_CAF) ;
+		update_seek_double_test ("header_double.caf", SF_FORMAT_CAF) ;
+		/* extra_header_test ("extra.caf", SF_FORMAT_CAF) ; */
+		test_count++ ;
+		} ;
+
+	if (do_all || ! strcmp (argv [1], "nist"))
+	{	update_header_test ("header.nist", SF_FORMAT_NIST) ;
+		update_seek_short_test ("header_short.nist", SF_FORMAT_NIST) ;
+		update_seek_int_test ("header_int.nist", SF_FORMAT_NIST) ;
+		test_count++ ;
+		} ;
+
+	if (do_all || ! strcmp (argv [1], "paf"))
+	{	update_header_test ("header.paf", SF_FORMAT_PAF) ;
+		update_seek_short_test ("header_short.paf", SF_FORMAT_PAF) ;
+		test_count++ ;
+		} ;
+
+	if (do_all || ! strcmp (argv [1], "ircam"))
+	{	update_header_test ("header.ircam", SF_FORMAT_IRCAM) ;
+		update_seek_short_test ("header_short.ircam", SF_FORMAT_IRCAM) ;
+		test_count++ ;
+		} ;
+
+	if (do_all || ! strcmp (argv [1], "w64"))
+	{	update_header_test ("header.w64", SF_FORMAT_W64) ;
+		update_seek_short_test ("header_short.w64", SF_FORMAT_W64) ;
+		update_seek_int_test ("header_int.w64", SF_FORMAT_W64) ;
+		update_seek_float_test ("header_float.w64", SF_FORMAT_W64) ;
+		update_seek_double_test ("header_double.w64", SF_FORMAT_W64) ;
+		test_count++ ;
+		} ;
+
+	if (do_all || ! strcmp (argv [1], "rf64"))
+	{	update_header_test ("header.rf64", SF_FORMAT_RF64) ;
+		update_seek_short_test ("header_short.rf64", SF_FORMAT_RF64) ;
+		update_seek_int_test ("header_int.rf64", SF_FORMAT_RF64) ;
+		update_seek_float_test ("header_float.rf64", SF_FORMAT_RF64) ;
+		update_seek_double_test ("header_double.rf64", SF_FORMAT_RF64) ;
+		test_count++ ;
+		} ;
+
+	if (do_all || ! strcmp (argv [1], "mat4"))
+	{	update_header_test ("header.mat4", SF_FORMAT_MAT4) ;
+		update_seek_short_test ("header_short.mat4", SF_FORMAT_MAT4) ;
+		update_seek_int_test ("header_int.mat4", SF_FORMAT_MAT4) ;
+		update_seek_float_test ("header_float.mat4", SF_FORMAT_MAT4) ;
+		update_seek_double_test ("header_double.mat4", SF_FORMAT_MAT4) ;
+		test_count++ ;
+		} ;
+
+	if (do_all || ! strcmp (argv [1], "mat5"))
+	{	update_header_test ("header.mat5", SF_FORMAT_MAT5) ;
+		update_seek_short_test ("header_short.mat5", SF_FORMAT_MAT5) ;
+		update_seek_int_test ("header_int.mat5", SF_FORMAT_MAT5) ;
+		update_seek_float_test ("header_float.mat5", SF_FORMAT_MAT5) ;
+		update_seek_double_test ("header_double.mat5", SF_FORMAT_MAT5) ;
+		test_count++ ;
+		} ;
+
+	if (do_all || ! strcmp (argv [1], "pvf"))
+	{	update_header_test ("header.pvf", SF_FORMAT_PVF) ;
+		update_seek_short_test ("header_short.pvf", SF_FORMAT_PVF) ;
+		test_count++ ;
+		} ;
+
+	if (do_all || ! strcmp (argv [1], "avr"))
+	{	update_header_test ("header.avr", SF_FORMAT_AVR) ;
+		update_seek_short_test ("header_short.avr", SF_FORMAT_AVR) ;
+		test_count++ ;
+		} ;
+
+	if (do_all || ! strcmp (argv [1], "htk"))
+	{	update_header_test ("header.htk", SF_FORMAT_HTK) ;
+		update_seek_short_test ("header_short.htk", SF_FORMAT_HTK) ;
+		test_count++ ;
+		} ;
+
+	if (do_all || ! strcmp (argv [1], "svx"))
+	{	update_header_test ("header.svx", SF_FORMAT_SVX) ;
+		update_seek_short_test ("header_short.svx", SF_FORMAT_SVX) ;
+		test_count++ ;
+		} ;
+
+	if (do_all || ! strcmp (argv [1], "voc"))
+	{	update_header_test ("header.voc", SF_FORMAT_VOC) ;
+		/*-update_seek_short_test ("header_short.voc", SF_FORMAT_VOC) ;-*/
+		test_count++ ;
+		} ;
+
+	if (do_all || ! strcmp (argv [1], "sds"))
+	{	update_header_test ("header.sds", SF_FORMAT_SDS) ;
+		/*-update_seek_short_test ("header_short.sds", SF_FORMAT_SDS) ;-*/
+		test_count++ ;
+		} ;
+
+	if (do_all || ! strcmp (argv [1], "mpc2k"))
+	{	update_header_test ("header.mpc", SF_FORMAT_MPC2K) ;
+		update_seek_short_test ("header_short.mpc", SF_FORMAT_MPC2K) ;
+		test_count++ ;
+		} ;
+
+	if (test_count == 0)
+	{	printf ("Mono : ************************************\n") ;
+		printf ("Mono : *  No '%s' test defined.\n", argv [1]) ;
+		printf ("Mono : ************************************\n") ;
+		return 1 ;
+		} ;
+
+	return 0 ;
+} /* main */
+
+
+/*============================================================================================
+**	Here are the test functions.
+*/
+
+static void
+update_header_sub (const char *filename, int typemajor, int write_mode)
+{	SNDFILE		*outfile, *infile ;
+	SF_INFO		sfinfo ;
+	int			k ;
+
+	sfinfo.samplerate = 44100 ;
+	sfinfo.format = (typemajor | SF_FORMAT_PCM_16) ;
+	sfinfo.channels = 1 ;
+	sfinfo.frames = 0 ;
+
+	outfile = test_open_file_or_die (filename, write_mode, &sfinfo, SF_TRUE, __LINE__) ;
+
+	for (k = 0 ; k < BUFFER_LEN ; k++)
+		data_out [k] = k + 1 ;
+	test_write_int_or_die (outfile, 0, data_out, BUFFER_LEN, __LINE__) ;
+
+	if (typemajor != SF_FORMAT_HTK)
+	{	/* The HTK header is not correct when the file is first written. */
+		infile = test_open_file_or_die (filename, SFM_READ, &sfinfo, SF_TRUE, __LINE__) ;
+		sf_close (infile) ;
+		} ;
+
+	sf_command (outfile, SFC_UPDATE_HEADER_NOW, NULL, 0) ;
+
+	/*
+	** Open file and check log buffer for an error. If header update failed
+	** the the log buffer will contain errors.
+	*/
+	infile = test_open_file_or_die (filename, SFM_READ, &sfinfo, SF_TRUE, __LINE__) ;
+	check_log_buffer_or_die (infile, __LINE__) ;
+
+	if (sfinfo.frames < BUFFER_LEN || sfinfo.frames > BUFFER_LEN + 50)
+	{	printf ("\n\nLine %d : Incorrect sample count (%" PRId64 " should be %d)\n", __LINE__, sfinfo.frames, BUFFER_LEN) ;
+		dump_log_buffer (infile) ;
+		exit (1) ;
+		} ;
+
+	test_read_int_or_die (infile, 0, data_in, BUFFER_LEN, __LINE__) ;
+	for (k = 0 ; k < BUFFER_LEN ; k++)
+		if (data_out [k] != k + 1)
+			printf ("Error : line %d\n", __LINE__) ;
+
+	sf_close (infile) ;
+
+	/* Set auto update on. */
+	sf_command (outfile, SFC_SET_UPDATE_HEADER_AUTO, NULL, SF_TRUE) ;
+
+	/* Write more data_out. */
+	for (k = 0 ; k < BUFFER_LEN ; k++)
+		data_out [k] = k + 2 ;
+	test_write_int_or_die (outfile, 0, data_out, BUFFER_LEN, __LINE__) ;
+
+	/* Open file again and make sure no errors in log buffer. */
+	infile = test_open_file_or_die (filename, SFM_READ, &sfinfo, SF_TRUE, __LINE__) ;
+	check_log_buffer_or_die (infile, __LINE__) ;
+
+	if (sfinfo.frames < 2 * BUFFER_LEN || sfinfo.frames > 2 * BUFFER_LEN + 50)
+	{	printf ("\n\nLine %d : Incorrect sample count (%" PRId64 " should be %d)\n", __LINE__, sfinfo.frames, 2 * BUFFER_LEN) ;
+		dump_log_buffer (infile) ;
+		exit (1) ;
+		} ;
+
+	sf_close (infile) ;
+
+	sf_close (outfile) ;
+
+	unlink (filename) ;
+} /* update_header_sub */
+
+static void
+update_header_test (const char *filename, int typemajor)
+{
+	print_test_name ("update_header_test", filename) ;
+
+	update_header_sub (filename, typemajor, SFM_WRITE) ;
+	update_header_sub (filename, typemajor, SFM_RDWR) ;
+
+	unlink (filename) ;
+	puts ("ok") ;
+} /* update_header_test */
+
+/*==============================================================================
+*/
+
+static void
+update_seek_short_test	(const char *filename, int filetype)
+{	SNDFILE *outfile, *infile ;
+	SF_INFO sfinfo ;
+	sf_count_t frames ;
+	short buffer [8] ;
+	int k ;
+
+	print_test_name ("update_seek_short_test", filename) ;
+
+	memset (buffer, 0, sizeof (buffer)) ;
+
+	/* Create sound outfile with no data. */
+	sfinfo.format = filetype | SF_FORMAT_PCM_16 ;
+	sfinfo.samplerate = 48000 ;
+	sfinfo.channels = 2 ;
+
+	if (sf_format_check (&sfinfo) == SF_FALSE)
+		sfinfo.channels = 1 ;
+
+	outfile = test_open_file_or_die (filename, SFM_WRITE, &sfinfo, SF_TRUE, __LINE__) ;
+	sf_close (outfile) ;
+
+	/* Open again for read/write. */
+	outfile = test_open_file_or_die (filename, SFM_RDWR, &sfinfo, SF_TRUE, __LINE__) ;
+
+	/*
+	** In auto header update mode, seeking to the end of the file with
+	** SEEK_SET will fail from the 2nd seek on.  seeking to 0, SEEK_END
+	** will seek to 0 anyway
+	*/
+	if (sf_command (outfile, SFC_SET_UPDATE_HEADER_AUTO, NULL, SF_TRUE) == 0)
+	{	printf ("\n\nError : sf_command (SFC_SET_UPDATE_HEADER_AUTO) return error : %s\n\n", sf_strerror (outfile)) ;
+		exit (1) ;
+		} ;
+
+	/* Now write some frames. */
+	frames = ARRAY_LEN (buffer) / sfinfo.channels ;
+
+	for (k = 0 ; k < 6 ; k++)
+	{	test_seek_or_die (outfile, k * frames, SEEK_SET, k * frames, sfinfo.channels, __LINE__) ;
+		test_seek_or_die (outfile, 0, SEEK_END, k * frames, sfinfo.channels, __LINE__) ;
+
+		/* Open file again and make sure no errors in log buffer. */
+		infile = test_open_file_or_die (filename, SFM_READ, &sfinfo, SF_TRUE, __LINE__) ;
+		check_log_buffer_or_die (infile, __LINE__) ;
+		sf_close (infile) ;
+
+		if (sfinfo.frames != k * frames)
+		{	printf ("\n\nLine %d : Incorrect sample count (%" PRId64 " should be %" PRId64 ")\n", __LINE__, sfinfo.frames, k + frames) ;
+			dump_log_buffer (infile) ;
+			exit (1) ;
+			} ;
+
+		if ((k & 1) == 0)
+			test_write_short_or_die (outfile, k, buffer, sfinfo.channels * frames, __LINE__) ;
+		else
+			test_writef_short_or_die (outfile, k, buffer, frames, __LINE__) ;
+		} ;
+
+	sf_close (outfile) ;
+	unlink (filename) ;
+
+	puts ("ok") ;
+	return ;
+} /* update_seek_short_test */
+
+static void
+update_seek_int_test	(const char *filename, int filetype)
+{	SNDFILE *outfile, *infile ;
+	SF_INFO sfinfo ;
+	sf_count_t frames ;
+	int buffer [8] ;
+	int k ;
+
+	print_test_name ("update_seek_int_test", filename) ;
+
+	memset (buffer, 0, sizeof (buffer)) ;
+
+	/* Create sound outfile with no data. */
+	sfinfo.format = filetype | SF_FORMAT_PCM_32 ;
+	sfinfo.samplerate = 48000 ;
+	sfinfo.channels = 2 ;
+
+	if (sf_format_check (&sfinfo) == SF_FALSE)
+		sfinfo.channels = 1 ;
+
+	outfile = test_open_file_or_die (filename, SFM_WRITE, &sfinfo, SF_TRUE, __LINE__) ;
+	sf_close (outfile) ;
+
+	/* Open again for read/write. */
+	outfile = test_open_file_or_die (filename, SFM_RDWR, &sfinfo, SF_TRUE, __LINE__) ;
+
+	/*
+	** In auto header update mode, seeking to the end of the file with
+	** SEEK_SET will fail from the 2nd seek on.  seeking to 0, SEEK_END
+	** will seek to 0 anyway
+	*/
+	if (sf_command (outfile, SFC_SET_UPDATE_HEADER_AUTO, NULL, SF_TRUE) == 0)
+	{	printf ("\n\nError : sf_command (SFC_SET_UPDATE_HEADER_AUTO) return error : %s\n\n", sf_strerror (outfile)) ;
+		exit (1) ;
+		} ;
+
+	/* Now write some frames. */
+	frames = ARRAY_LEN (buffer) / sfinfo.channels ;
+
+	for (k = 0 ; k < 6 ; k++)
+	{	test_seek_or_die (outfile, k * frames, SEEK_SET, k * frames, sfinfo.channels, __LINE__) ;
+		test_seek_or_die (outfile, 0, SEEK_END, k * frames, sfinfo.channels, __LINE__) ;
+
+		/* Open file again and make sure no errors in log buffer. */
+		infile = test_open_file_or_die (filename, SFM_READ, &sfinfo, SF_TRUE, __LINE__) ;
+		check_log_buffer_or_die (infile, __LINE__) ;
+		sf_close (infile) ;
+
+		if (sfinfo.frames != k * frames)
+		{	printf ("\n\nLine %d : Incorrect sample count (%" PRId64 " should be %" PRId64 ")\n", __LINE__, sfinfo.frames, k + frames) ;
+			dump_log_buffer (infile) ;
+			exit (1) ;
+			} ;
+
+		if ((k & 1) == 0)
+			test_write_int_or_die (outfile, k, buffer, sfinfo.channels * frames, __LINE__) ;
+		else
+			test_writef_int_or_die (outfile, k, buffer, frames, __LINE__) ;
+		} ;
+
+	sf_close (outfile) ;
+	unlink (filename) ;
+
+	puts ("ok") ;
+	return ;
+} /* update_seek_int_test */
+
+static void
+update_seek_float_test	(const char *filename, int filetype)
+{	SNDFILE *outfile, *infile ;
+	SF_INFO sfinfo ;
+	sf_count_t frames ;
+	float buffer [8] ;
+	int k ;
+
+	print_test_name ("update_seek_float_test", filename) ;
+
+	memset (buffer, 0, sizeof (buffer)) ;
+
+	/* Create sound outfile with no data. */
+	sfinfo.format = filetype | SF_FORMAT_FLOAT ;
+	sfinfo.samplerate = 48000 ;
+	sfinfo.channels = 2 ;
+
+	if (sf_format_check (&sfinfo) == SF_FALSE)
+		sfinfo.channels = 1 ;
+
+	outfile = test_open_file_or_die (filename, SFM_WRITE, &sfinfo, SF_TRUE, __LINE__) ;
+	sf_close (outfile) ;
+
+	/* Open again for read/write. */
+	outfile = test_open_file_or_die (filename, SFM_RDWR, &sfinfo, SF_TRUE, __LINE__) ;
+
+	/*
+	** In auto header update mode, seeking to the end of the file with
+	** SEEK_SET will fail from the 2nd seek on.  seeking to 0, SEEK_END
+	** will seek to 0 anyway
+	*/
+	if (sf_command (outfile, SFC_SET_UPDATE_HEADER_AUTO, NULL, SF_TRUE) == 0)
+	{	printf ("\n\nError : sf_command (SFC_SET_UPDATE_HEADER_AUTO) return error : %s\n\n", sf_strerror (outfile)) ;
+		exit (1) ;
+		} ;
+
+	/* Now write some frames. */
+	frames = ARRAY_LEN (buffer) / sfinfo.channels ;
+
+	for (k = 0 ; k < 6 ; k++)
+	{	test_seek_or_die (outfile, k * frames, SEEK_SET, k * frames, sfinfo.channels, __LINE__) ;
+		test_seek_or_die (outfile, 0, SEEK_END, k * frames, sfinfo.channels, __LINE__) ;
+
+		/* Open file again and make sure no errors in log buffer. */
+		infile = test_open_file_or_die (filename, SFM_READ, &sfinfo, SF_TRUE, __LINE__) ;
+		check_log_buffer_or_die (infile, __LINE__) ;
+		sf_close (infile) ;
+
+		if (sfinfo.frames != k * frames)
+		{	printf ("\n\nLine %d : Incorrect sample count (%" PRId64 " should be %" PRId64 ")\n", __LINE__, sfinfo.frames, k + frames) ;
+			dump_log_buffer (infile) ;
+			exit (1) ;
+			} ;
+
+		if ((k & 1) == 0)
+			test_write_float_or_die (outfile, k, buffer, sfinfo.channels * frames, __LINE__) ;
+		else
+			test_writef_float_or_die (outfile, k, buffer, frames, __LINE__) ;
+		} ;
+
+	sf_close (outfile) ;
+	unlink (filename) ;
+
+	puts ("ok") ;
+	return ;
+} /* update_seek_float_test */
+
+static void
+update_seek_double_test	(const char *filename, int filetype)
+{	SNDFILE *outfile, *infile ;
+	SF_INFO sfinfo ;
+	sf_count_t frames ;
+	double buffer [8] ;
+	int k ;
+
+	print_test_name ("update_seek_double_test", filename) ;
+
+	memset (buffer, 0, sizeof (buffer)) ;
+
+	/* Create sound outfile with no data. */
+	sfinfo.format = filetype | SF_FORMAT_DOUBLE ;
+	sfinfo.samplerate = 48000 ;
+	sfinfo.channels = 2 ;
+
+	if (sf_format_check (&sfinfo) == SF_FALSE)
+		sfinfo.channels = 1 ;
+
+	outfile = test_open_file_or_die (filename, SFM_WRITE, &sfinfo, SF_TRUE, __LINE__) ;
+	sf_close (outfile) ;
+
+	/* Open again for read/write. */
+	outfile = test_open_file_or_die (filename, SFM_RDWR, &sfinfo, SF_TRUE, __LINE__) ;
+
+	/*
+	** In auto header update mode, seeking to the end of the file with
+	** SEEK_SET will fail from the 2nd seek on.  seeking to 0, SEEK_END
+	** will seek to 0 anyway
+	*/
+	if (sf_command (outfile, SFC_SET_UPDATE_HEADER_AUTO, NULL, SF_TRUE) == 0)
+	{	printf ("\n\nError : sf_command (SFC_SET_UPDATE_HEADER_AUTO) return error : %s\n\n", sf_strerror (outfile)) ;
+		exit (1) ;
+		} ;
+
+	/* Now write some frames. */
+	frames = ARRAY_LEN (buffer) / sfinfo.channels ;
+
+	for (k = 0 ; k < 6 ; k++)
+	{	test_seek_or_die (outfile, k * frames, SEEK_SET, k * frames, sfinfo.channels, __LINE__) ;
+		test_seek_or_die (outfile, 0, SEEK_END, k * frames, sfinfo.channels, __LINE__) ;
+
+		/* Open file again and make sure no errors in log buffer. */
+		infile = test_open_file_or_die (filename, SFM_READ, &sfinfo, SF_TRUE, __LINE__) ;
+		check_log_buffer_or_die (infile, __LINE__) ;
+		sf_close (infile) ;
+
+		if (sfinfo.frames != k * frames)
+		{	printf ("\n\nLine %d : Incorrect sample count (%" PRId64 " should be %" PRId64 ")\n", __LINE__, sfinfo.frames, k + frames) ;
+			dump_log_buffer (infile) ;
+			exit (1) ;
+			} ;
+
+		if ((k & 1) == 0)
+			test_write_double_or_die (outfile, k, buffer, sfinfo.channels * frames, __LINE__) ;
+		else
+			test_writef_double_or_die (outfile, k, buffer, frames, __LINE__) ;
+		} ;
+
+	sf_close (outfile) ;
+	unlink (filename) ;
+
+	puts ("ok") ;
+	return ;
+} /* update_seek_double_test */
+
+
+
+static void
+header_shrink_test (const char *filename, int filetype)
+{	SNDFILE *outfile, *infile ;
+	SF_INFO sfinfo ;
+	sf_count_t frames ;
+	float buffer [8], bufferin [8] ;
+
+	print_test_name ("header_shrink_test", filename) ;
+
+	memset (&sfinfo, 0, sizeof (sfinfo)) ;
+	sfinfo.samplerate = 44100 ;
+	sfinfo.format = filetype | SF_FORMAT_FLOAT ;
+	sfinfo.channels = 1 ;
+
+	memset (buffer, 0xA0, sizeof (buffer)) ;
+
+	/* Now write some frames. */
+	frames = ARRAY_LEN (buffer) / sfinfo.channels ;
+
+	/* Test the file with extra header data. */
+	outfile = test_open_file_or_die (filename, SFM_WRITE, &sfinfo, SF_FALSE, __LINE__) ;
+
+	sf_command (outfile, SFC_SET_ADD_PEAK_CHUNK, NULL, SF_TRUE) ;
+	sf_command (outfile, SFC_UPDATE_HEADER_NOW, NULL, SF_FALSE) ;
+	sf_command (outfile, SFC_SET_ADD_PEAK_CHUNK, NULL, SF_FALSE) ;
+
+	test_writef_float_or_die (outfile, 0, buffer, frames, __LINE__) ;
+	sf_close (outfile) ;
+
+	/* Open again for read. */
+	infile = test_open_file_or_die (filename, SFM_READ, &sfinfo, SF_FALSE, __LINE__) ;
+
+	test_readf_float_or_die (infile, 0, bufferin, frames, __LINE__) ;
+	sf_close (infile) ;
+
+	compare_float_or_die (buffer, bufferin, frames, __LINE__) ;
+
+	unlink (filename) ;
+	puts ("ok") ;
+	return ;
+} /* header_shrink_test */
+
+
+static void
+extra_header_test (const char *filename, int filetype)
+{	SNDFILE *outfile, *infile ;
+	SF_INFO sfinfo ;
+	sf_count_t frames ;
+	short buffer [8] ;
+	int k = 0 ;
+
+	print_test_name ("extra_header_test", filename) ;
+
+	sfinfo.samplerate = 44100 ;
+	sfinfo.format = (filetype | SF_FORMAT_PCM_16) ;
+	sfinfo.channels = 1 ;
+
+	memset (buffer, 0xA0, sizeof (buffer)) ;
+
+	/* Now write some frames. */
+	frames = ARRAY_LEN (buffer) / sfinfo.channels ;
+
+	/* Test the file with extra header data. */
+	outfile = test_open_file_or_die (filename, SFM_WRITE, &sfinfo, SF_TRUE, 463) ;
+	sf_set_string (outfile, SF_STR_TITLE, filename) ;
+	test_writef_short_or_die (outfile, k, buffer, frames, 465) ;
+	sf_set_string (outfile, SF_STR_COPYRIGHT, "(c) 1980 Erik") ;
+	sf_close (outfile) ;
+
+#if 1
+	/*
+	**  Erik de Castro Lopo <[e-mail]> May 23 2004.
+	**
+	** This file has extra string data in the header and therefore cannot
+	** currently be opened in SFM_RDWR mode. This is fixable, but its in
+	** a part of the code I don't want to fiddle with until the Ogg/Vorbis
+	** integration is done.
+	*/
+
+	if ((infile = sf_open (filename, SFM_RDWR, &sfinfo)) != NULL)
+	{	printf ("\n\nError : should not be able to open this file in SFM_RDWR.\n\n") ;
+		exit (1) ;
+		} ;
+
+	unlink (filename) ;
+	puts ("ok") ;
+	return ;
+#else
+
+	hexdump_file (filename, 0, 100000) ;
+
+	/* Open again for read/write. */
+	outfile = test_open_file_or_die (filename, SFM_RDWR, &sfinfo, 492) ;
+
+	/*
+	** In auto header update mode, seeking to the end of the file with
+	** SEEK_SET will fail from the 2nd seek on.  seeking to 0, SEEK_END
+	** will seek to 0 anyway
+	*/
+	if (sf_command (outfile, SFC_SET_UPDATE_HEADER_AUTO, NULL, SF_TRUE) == 0)
+	{	printf ("\n\nError : sf_command (SFC_SET_UPDATE_HEADER_AUTO) return error : %s\n\n", sf_strerror (outfile)) ;
+		exit (1) ;
+		} ;
+
+	/* Now write some frames. */
+	frames = ARRAY_LEN (buffer) / sfinfo.channels ;
+
+	for (k = 1 ; k < 6 ; k++)
+	{
+		printf ("\n*** pass %d\n", k) ;
+		memset (buffer, 0xA0 + k, sizeof (buffer)) ;
+
+
+		test_seek_or_die (outfile, k * frames, SEEK_SET, k * frames, sfinfo.channels, 513) ;
+		test_seek_or_die (outfile, 0, SEEK_END, k * frames, sfinfo.channels, 514) ;
+
+		/* Open file again and make sure no errors in log buffer. */
+		if (0)
+		{	infile = test_open_file_or_die (filename, SFM_READ, &sfinfo, 518) ;
+			check_log_buffer_or_die (infile, 519) ;
+			sf_close (infile) ;
+			} ;
+
+		if (sfinfo.frames != k * frames)
+		{	printf ("\n\nLine %d : Incorrect sample count (%" PRId64 " should be %" PRId64 ")\n", 524, sfinfo.frames, k + frames) ;
+			dump_log_buffer (infile) ;
+			exit (1) ;
+			} ;
+
+		if ((k & 1) == 0)
+			test_write_short_or_die (outfile, k, buffer, sfinfo.channels * frames, 530) ;
+		else
+			test_writef_short_or_die (outfile, k, buffer, frames, 532) ;
+		hexdump_file (filename, 0, 100000) ;
+		} ;
+
+	sf_close (outfile) ;
+	unlink (filename) ;
+
+	puts ("ok") ;
+	return ;
+#endif
+} /* extra_header_test */
+