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

Current libsndfile source

+/*
+** Copyright (C) 1999-2014 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 <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <math.h>
+#include <inttypes.h>
+
+#include <sndfile.h>
+
+#include "utils.h"
+
+#define		BUFFER_SIZE		(1 << 14)
+#define		SAMPLE_RATE		(11025)
+
+#ifndef		M_PI
+#define		M_PI		3.14159265358979323846264338
+#endif
+
+static	void	lcomp_test_int	(const char *str, const char *filename, int filetype, double margin) ;
+
+static	int		error_function (double data, double orig, double margin) ;
+static	int		decay_response (int k) ;
+
+static	void	gen_signal_double (double *data, double scale, int datalen) ;
+
+/* Force the start of these buffers to be double aligned. Sparc-solaris will
+** choke if they are not.
+*/
+
+typedef union
+{	double	d [BUFFER_SIZE + 1] ;
+	int 	i [BUFFER_SIZE + 1] ;
+} BUFFER ;
+
+static	BUFFER	data_buffer ;
+static	BUFFER	orig_buffer ;
+
+int
+main (void)
+{	const char	*filename = "test.au" ;
+
+	lcomp_test_int	("au_g721", filename, SF_ENDIAN_BIG | SF_FORMAT_AU | SF_FORMAT_G721_32, 0.06) ;
+
+	return 0 ;
+} /* main */
+
+/*============================================================================================
+**	Here are the test functions.
+*/
+
+static void
+lcomp_test_int (const char *str, const char *filename, int filetype, double margin)
+{	SNDFILE		*file ;
+	SF_INFO		sfinfo ;
+	int			k, m, *orig, *data ;
+	sf_count_t	datalen, seekpos ;
+	int64_t		sum_abs ;
+	double		scale ;
+
+	printf ("\nThis is program is not part of the libsndfile test suite.\n\n") ;
+
+	printf ("    lcomp_test_int      : %s ... ", str) ;
+	fflush (stdout) ;
+
+	datalen = BUFFER_SIZE ;
+
+	scale = 1.0 * 0x10000 ;
+
+	data = data_buffer.i ;
+	orig = orig_buffer.i ;
+
+	gen_signal_double (orig_buffer.d, 32000.0 * scale, datalen) ;
+	for (k = 0 ; k < datalen ; k++)
+		orig [k] = orig_buffer.d [k] ;
+
+
+	sfinfo.samplerate	= SAMPLE_RATE ;
+	sfinfo.frames		= 123456789 ;	/* Ridiculous value. */
+	sfinfo.channels		= 1 ;
+	sfinfo.format		= filetype ;
+
+	if (! (file = sf_open (filename, SFM_WRITE, &sfinfo)))
+	{	printf ("sf_open_write failed with error : ") ;
+		puts (sf_strerror (NULL)) ;
+		exit (1) ;
+		} ;
+
+	if ((k = sf_writef_int (file, orig, datalen)) != datalen)
+	{	printf ("sf_writef_int failed with short write (%" PRId64 " => %d).\n", datalen, k) ;
+		exit (1) ;
+		} ;
+	sf_close (file) ;
+
+	memset (data, 0, datalen * sizeof (int)) ;
+
+	if ((filetype & SF_FORMAT_TYPEMASK) != SF_FORMAT_RAW)
+		memset (&sfinfo, 0, sizeof (sfinfo)) ;
+
+	if (! (file = sf_open (filename, SFM_READ, &sfinfo)))
+	{	printf ("sf_open_read failed with error : ") ;
+		puts (sf_strerror (NULL)) ;
+		exit (1) ;
+		} ;
+
+	if ((sfinfo.format & (SF_FORMAT_TYPEMASK | SF_FORMAT_SUBMASK)) != (filetype & (SF_FORMAT_TYPEMASK | SF_FORMAT_SUBMASK)))
+	{	printf ("Line %d: Returned format incorrect (0x%08X => 0x%08X).\n", __LINE__, filetype, sfinfo.format) ;
+		exit (1) ;
+		} ;
+
+	if (sfinfo.frames < datalen)
+	{	printf ("Too few.frames in file. (%" PRId64 " should be a little more than %" PRId64 ")\n", datalen, sfinfo.frames) ;
+		exit (1) ;
+		} ;
+
+	if (sfinfo.frames > (datalen + datalen / 2))
+	{	printf ("Too many.frames in file. (%" PRId64 " should be a little more than %" PRId64 ")\n", datalen, sfinfo.frames) ;
+		exit (1) ;
+		} ;
+
+	if (sfinfo.channels != 1)
+	{	printf ("Incorrect number of channels in file.\n") ;
+		exit (1) ;
+		} ;
+
+	check_log_buffer_or_die (file, __LINE__) ;
+
+	if ((k = sf_readf_int (file, data, datalen)) != datalen)
+	{	printf ("Line %d: short read (%d should be %" PRId64 ").\n", __LINE__, k, datalen) ;
+		exit (1) ;
+		} ;
+
+	sum_abs = 0 ;
+	for (k = 0 ; k < datalen ; k++)
+	{	if (error_function (data [k] / scale, orig [k] / scale, margin))
+		{	printf ("Line %d: Incorrect sample (#%d : %f should be %f).\n", __LINE__, k, data [k] / scale, orig [k] / scale) ;
+			oct_save_int (orig, data, datalen) ;
+			exit (1) ;
+			} ;
+		sum_abs += abs (data [k]) ;
+		} ;
+
+	if (sum_abs < 1.0)
+	{	printf ("Line %d: Signal is all zeros.\n", __LINE__) ;
+		exit (1) ;
+		} ;
+
+	if ((k = sf_readf_int (file, data, datalen)) != sfinfo.frames - datalen)
+	{	printf ("Line %d: Incorrect read length (%" PRId64 " should be %d).\n", __LINE__, sfinfo.frames - datalen, k) ;
+		exit (1) ;
+		} ;
+
+	/*	This check is only for block based encoders which must append silence
+	**	to the end of a file so as to fill out a block.
+	*/
+	if ((sfinfo.format & SF_FORMAT_SUBMASK) != SF_FORMAT_MS_ADPCM)
+		for (k = 0 ; k < sfinfo.frames - datalen ; k++)
+			if (ABS (data [k] / scale) > decay_response (k))
+			{	printf ("Line %d : Incorrect sample B (#%d : abs (%d) should be < %d).\n", __LINE__, k, data [k], decay_response (k)) ;
+				exit (1) ;
+				} ;
+
+	if (! sfinfo.seekable)
+	{	printf ("ok\n") ;
+		return ;
+		} ;
+
+	/* Now test sf_seek function. */
+
+	if ((k = sf_seek (file, 0, SEEK_SET)) != 0)
+	{	printf ("Line %d: Seek to start of file failed (%d).\n", __LINE__, k) ;
+		exit (1) ;
+		} ;
+
+	for (m = 0 ; m < 3 ; m++)
+	{	int n ;
+
+		if ((k = sf_readf_int (file, data, 11)) != 11)
+		{	printf ("Line %d: Incorrect read length (11 => %d).\n", __LINE__, k) ;
+			exit (1) ;
+			} ;
+
+		for (k = 0 ; k < 11 ; k++)
+			if (error_function (data [k] / scale, orig [k + m * 11] / scale, margin))
+			{	printf ("Line %d: Incorrect sample (m = %d) (#%d : %d => %d).\n", __LINE__, m, k + m * 11, orig [k + m * 11], data [k]) ;
+				for (n = 0 ; n < 1 ; n++)
+					printf ("%d ", data [n]) ;
+				printf ("\n") ;
+				exit (1) ;
+				} ;
+		} ;
+
+	seekpos = BUFFER_SIZE / 10 ;
+
+	/* Check seek from start of file. */
+	if ((k = sf_seek (file, seekpos, SEEK_SET)) != seekpos)
+	{	printf ("Seek to start of file + %" PRId64 " failed (%d).\n", seekpos, k) ;
+		exit (1) ;
+		} ;
+
+	if ((k = sf_readf_int (file, data, 1)) != 1)
+	{	printf ("Line %d: sf_readf_int (file, data, 1) returned %d.\n", __LINE__, k) ;
+		exit (1) ;
+		} ;
+
+	if (error_function ((double) data [0], (double) orig [seekpos], margin))
+	{	printf ("Line %d: sf_seek (SEEK_SET) followed by sf_readf_int failed (%d, %d).\n", __LINE__, orig [1], data [0]) ;
+		exit (1) ;
+		} ;
+
+	if ((k = sf_seek (file, 0, SEEK_CUR)) != seekpos + 1)
+	{	printf ("Line %d: sf_seek (SEEK_CUR) with 0 offset failed (%d should be %" PRId64 ")\n", __LINE__, k, seekpos + 1) ;
+		exit (1) ;
+		} ;
+
+	seekpos = sf_seek (file, 0, SEEK_CUR) + BUFFER_SIZE / 5 ;
+	k = sf_seek (file, BUFFER_SIZE / 5, SEEK_CUR) ;
+	sf_readf_int (file, data, 1) ;
+	if (error_function ((double) data [0], (double) orig [seekpos], margin) || k != seekpos)
+	{	printf ("Line %d: sf_seek (forwards, SEEK_CUR) followed by sf_readf_int failed (%d, %d) (%d, %" PRId64 ").\n", __LINE__, data [0], orig [seekpos], k, seekpos + 1) ;
+		exit (1) ;
+		} ;
+
+	seekpos = sf_seek (file, 0, SEEK_CUR) - 20 ;
+	/* Check seek backward from current position. */
+	k = sf_seek (file, -20, SEEK_CUR) ;
+	sf_readf_int (file, data, 1) ;
+	if (error_function ((double) data [0], (double) orig [seekpos], margin) || k != seekpos)
+	{	printf ("sf_seek (backwards, SEEK_CUR) followed by sf_readf_int failed (%d, %d) (%d, %" PRId64 ").\n", data [0], orig [seekpos], k, seekpos) ;
+		exit (1) ;
+		} ;
+
+	/* Check that read past end of file returns number of items. */
+	sf_seek (file, (int) sfinfo.frames, SEEK_SET) ;
+
+ 	if ((k = sf_readf_int (file, data, datalen)) != 0)
+ 	{	printf ("Line %d: Return value from sf_readf_int past end of file incorrect (%d).\n", __LINE__, k) ;
+ 		exit (1) ;
+ 		} ;
+
+	/* Check seek backward from end. */
+	if ((k = sf_seek (file, 5 - (int) sfinfo.frames, SEEK_END)) != 5)
+	{	printf ("sf_seek (SEEK_END) returned %d instead of %d.\n", k, 5) ;
+		exit (1) ;
+		} ;
+
+	sf_readf_int (file, data, 1) ;
+	if (error_function (data [0] / scale, orig [5] / scale, margin))
+	{	printf ("Line %d: sf_seek (SEEK_END) followed by sf_readf_short failed (%d should be %d).\n", __LINE__, data [0], orig [5]) ;
+		exit (1) ;
+		} ;
+
+	sf_close (file) ;
+
+	printf ("ok\n") ;
+} /* lcomp_test_int */
+
+/*========================================================================================
+**	Auxiliary functions
+*/
+
+#define		SIGNAL_MAXVAL	30000.0
+#define		DECAY_COUNT		800
+
+static int
+decay_response (int k)
+{	if (k < 1)
+		return (int) (1.2 * SIGNAL_MAXVAL) ;
+	if (k > DECAY_COUNT)
+		return 0 ;
+	return (int) (1.2 * SIGNAL_MAXVAL * (DECAY_COUNT - k) / (1.0 * DECAY_COUNT)) ;
+} /* decay_response */
+
+static void
+gen_signal_double (double *data, double scale, int datalen)
+{	int		k, ramplen ;
+	double	amp = 0.0 ;
+
+	ramplen = datalen / 18 ;
+
+	for (k = 0 ; k < datalen ; k++)
+	{	if (k <= ramplen)
+			amp = scale * k / ((double) ramplen) ;
+		else if (k > datalen - ramplen)
+			amp = scale * (datalen - k) / ((double) ramplen) ;
+
+		data [k] = amp * (0.4 * sin (33.3 * 2.0 * M_PI * ((double) (k + 1)) / ((double) SAMPLE_RATE))
+							+ 0.3 * cos (201.1 * 2.0 * M_PI * ((double) (k + 1)) / ((double) SAMPLE_RATE))) ;
+		} ;
+
+	return ;
+} /* gen_signal_double */
+
+static int
+error_function (double data, double orig, double margin)
+{	double error ;
+
+	if (fabs (orig) <= 500.0)
+		error = fabs (fabs (data) - fabs (orig)) / 2000.0 ;
+	else if (fabs (orig) <= 1000.0)
+		error = fabs (data - orig) / 3000.0 ;
+	else
+		error = fabs (data - orig) / fabs (orig) ;
+
+	if (error > margin)
+	{	printf ("\n\n*******************\nError : %f\n", error) ;
+		return 1 ;
+		} ;
+	return 0 ;
+} /* error_function */
+