[audio-libsamplerate.git] / libsamplerate / tests / float_short_test.c

/*
** Copyright (c) 2003-2016, Erik de Castro Lopo <erikd@mega-nerd.com>
** All rights reserved.
**
** This code is released under 2-clause BSD license. Please see the
** file at : https://github.com/erikd/libsamplerate/blob/master/COPYING
*/

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

#include <samplerate.h>

#include "util.h"

#define	BUFFER_LEN		10000

static void float_to_short_test (void) ;
static void short_to_float_test (void) ;

static void float_to_int_test (void) ;
static void int_to_float_test (void) ;

int
main (void)
{
	puts ("") ;

	float_to_short_test () ;
	short_to_float_test () ;

	float_to_int_test () ;
	int_to_float_test () ;

	puts ("") ;

	return 0 ;
} /* main */

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

static void
float_to_short_test (void)
{
	static float fpos [] =
	{	0.95, 0.99, 1.0, 1.01, 1.1, 2.0, 11.1, 111.1, 2222.2, 33333.3
		} ;
	static float fneg [] =
	{	-0.95, -0.99, -1.0, -1.01, -1.1, -2.0, -11.1, -111.1, -2222.2, -33333.3
		} ;

	static short out [MAX (ARRAY_LEN (fpos), ARRAY_LEN (fneg))] ;

	int k ;

	printf ("\tfloat_to_short_test ............................. ") ;

	src_float_to_short_array (fpos, out, ARRAY_LEN (fpos)) ;

	for (k = 0 ; k < ARRAY_LEN (fpos) ; k++)
		if (out [k] < 30000)
		{	printf ("\n\n\tLine %d : out [%d] == %d\n", __LINE__, k, out [k]) ;
			exit (1) ;
			} ;

	src_float_to_short_array (fneg, out, ARRAY_LEN (fneg)) ;

	for (k = 0 ; k < ARRAY_LEN (fneg) ; k++)
		if (out [k] > -30000)
		{	printf ("\n\n\tLine %d : out [%d] == %d\n", __LINE__, k, out [k]) ;
			exit (1) ;
			} ;

	puts ("ok") ;

	return ;
} /* float_to_short_test */

/*-------------------------------------------------------------------------------------
*/

static void
short_to_float_test (void)
{
	static short input	[BUFFER_LEN] ;
	static short output	[BUFFER_LEN] ;
	static float temp	[BUFFER_LEN] ;

	int k ;

	printf ("\tshort_to_float_test ............................. ") ;

	for (k = 0 ; k < ARRAY_LEN (input) ; k++)
		input [k] = (k * 0x8000) / ARRAY_LEN (input) ;

	src_short_to_float_array (input, temp, ARRAY_LEN (temp)) ;
	src_float_to_short_array (temp, output, ARRAY_LEN (output)) ;

	for (k = 0 ; k < ARRAY_LEN (input) ; k++)
		if (ABS (input [k] - output [k]) > 0)
		{	printf ("\n\n\tLine %d : index %d   %d -> %d\n", __LINE__, k, input [k], output [k]) ;
			exit (1) ;
			} ;

	puts ("ok") ;

	return ;
} /* short_to_float_test */

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

static void
float_to_int_test (void)
{
	static float fpos [] =
	{	0.95, 0.99, 1.0, 1.01, 1.1, 2.0, 11.1, 111.1, 2222.2, 33333.3
		} ;
	static float fneg [] =
	{	-0.95, -0.99, -1.0, -1.01, -1.1, -2.0, -11.1, -111.1, -2222.2, -33333.3
		} ;

	static int out [MAX (ARRAY_LEN (fpos), ARRAY_LEN (fneg))] ;

	int k ;

	printf ("\tfloat_to_int_test ............................... ") ;

	src_float_to_int_array (fpos, out, ARRAY_LEN (fpos)) ;

	for (k = 0 ; k < ARRAY_LEN (fpos) ; k++)
		if (out [k] < 30000 * 0x10000)
		{	printf ("\n\n\tLine %d : out [%d] == %d\n", __LINE__, k, out [k]) ;
			exit (1) ;
			} ;

	src_float_to_int_array (fneg, out, ARRAY_LEN (fneg)) ;

	for (k = 0 ; k < ARRAY_LEN (fneg) ; k++)
		if (out [k] > -30000 * 0x1000)
		{	printf ("\n\n\tLine %d : out [%d] == %d\n", __LINE__, k, out [k]) ;
			exit (1) ;
			} ;

	puts ("ok") ;

	return ;
} /* float_to_int_test */

/*-------------------------------------------------------------------------------------
*/

static void
int_to_float_test (void)
{
	static int input	[BUFFER_LEN] ;
	static int output	[BUFFER_LEN] ;
	static float temp	[BUFFER_LEN] ;

	int k ;

	printf ("\tint_to_float_test ............................... ") ;

	for (k = 0 ; k < ARRAY_LEN (input) ; k++)
		input [k] = (k * 0x80000000) / ARRAY_LEN (input) ;

	src_int_to_float_array (input, temp, ARRAY_LEN (temp)) ;
	src_float_to_int_array (temp, output, ARRAY_LEN (output)) ;

	for (k = 0 ; k < ARRAY_LEN (input) ; k++)
		if (ABS (input [k] - output [k]) > 0)
		{	printf ("\n\n\tLine %d : index %d   %d -> %d\n", __LINE__, k, input [k], output [k]) ;
			exit (1) ;
			} ;

	puts ("ok") ;

	return ;
} /* int_to_float_test */
Commit	Line	Data
8529da43 MG	1	/*
	2	** Copyright (c) 2003-2016, Erik de Castro Lopo <erikd@mega-nerd.com>
	3	** All rights reserved.
	4	**
	5	** This code is released under 2-clause BSD license. Please see the
	6	** file at : https://github.com/erikd/libsamplerate/blob/master/COPYING
	7	*/
	8
	9	#include <stdio.h>
	10	#include <stdlib.h>
	11	#include <string.h>
	12
	13	#include <samplerate.h>
	14
	15	#include "util.h"
	16
	17	#define BUFFER_LEN 10000
	18
	19	static void float_to_short_test (void) ;
	20	static void short_to_float_test (void) ;
	21
	22	static void float_to_int_test (void) ;
	23	static void int_to_float_test (void) ;
	24
	25	int
	26	main (void)
	27	{
	28	puts ("") ;
	29
	30	float_to_short_test () ;
	31	short_to_float_test () ;
	32
	33	float_to_int_test () ;
	34	int_to_float_test () ;
	35
	36	puts ("") ;
	37
	38	return 0 ;
	39	} /* main */
	40
	41	/*=====================================================================================
	42	*/
	43
	44	static void
	45	float_to_short_test (void)
	46	{
	47	static float fpos [] =
	48	{ 0.95, 0.99, 1.0, 1.01, 1.1, 2.0, 11.1, 111.1, 2222.2, 33333.3
	49	} ;
	50	static float fneg [] =
	51	{ -0.95, -0.99, -1.0, -1.01, -1.1, -2.0, -11.1, -111.1, -2222.2, -33333.3
	52	} ;
	53
	54	static short out [MAX (ARRAY_LEN (fpos), ARRAY_LEN (fneg))] ;
	55
	56	int k ;
	57
	58	printf ("\tfloat_to_short_test ............................. ") ;
	59
	60	src_float_to_short_array (fpos, out, ARRAY_LEN (fpos)) ;
	61
	62	for (k = 0 ; k < ARRAY_LEN (fpos) ; k++)
	63	if (out [k] < 30000)
	64	{ printf ("\n\n\tLine %d : out [%d] == %d\n", __LINE__, k, out [k]) ;
65	exit (1) ;
66	} ;
67
68	src_float_to_short_array (fneg, out, ARRAY_LEN (fneg)) ;
69
70	for (k = 0 ; k < ARRAY_LEN (fneg) ; k++)
71	if (out [k] > -30000)
72	{ printf ("\n\n\tLine %d : out [%d] == %d\n", __LINE__, k, out [k]) ;
73	exit (1) ;
74	} ;
75
76	puts ("ok") ;
77
78	return ;
79	} /* float_to_short_test */
80
81	/*-------------------------------------------------------------------------------------
82	*/
83
84	static void
85	short_to_float_test (void)
86	{
87	static short input [BUFFER_LEN] ;
88	static short output [BUFFER_LEN] ;
89	static float temp [BUFFER_LEN] ;
90
91	int k ;
92
93	printf ("\tshort_to_float_test ............................. ") ;
94
95	for (k = 0 ; k < ARRAY_LEN (input) ; k++)
96	input [k] = (k * 0x8000) / ARRAY_LEN (input) ;
97
98	src_short_to_float_array (input, temp, ARRAY_LEN (temp)) ;
99	src_float_to_short_array (temp, output, ARRAY_LEN (output)) ;
100
101	for (k = 0 ; k < ARRAY_LEN (input) ; k++)
102	if (ABS (input [k] - output [k]) > 0)
103	{ printf ("\n\n\tLine %d : index %d %d -> %d\n", __LINE__, k, input [k], output [k]) ;
104	exit (1) ;
105	} ;
106
107	puts ("ok") ;
108
109	return ;
110	} /* short_to_float_test */
111
112	/*=====================================================================================
113	*/
114
115	static void
116	float_to_int_test (void)
117	{
118	static float fpos [] =
119	{ 0.95, 0.99, 1.0, 1.01, 1.1, 2.0, 11.1, 111.1, 2222.2, 33333.3
120	} ;
121	static float fneg [] =
122	{ -0.95, -0.99, -1.0, -1.01, -1.1, -2.0, -11.1, -111.1, -2222.2, -33333.3
123	} ;
124
125	static int out [MAX (ARRAY_LEN (fpos), ARRAY_LEN (fneg))] ;
126
127	int k ;
128
129	printf ("\tfloat_to_int_test ............................... ") ;
130
131	src_float_to_int_array (fpos, out, ARRAY_LEN (fpos)) ;
132
133	for (k = 0 ; k < ARRAY_LEN (fpos) ; k++)
134	if (out [k] < 30000 * 0x10000)
135	{ printf ("\n\n\tLine %d : out [%d] == %d\n", __LINE__, k, out [k]) ;
136	exit (1) ;
137	} ;
138
139	src_float_to_int_array (fneg, out, ARRAY_LEN (fneg)) ;
140
141	for (k = 0 ; k < ARRAY_LEN (fneg) ; k++)
142	if (out [k] > -30000 * 0x1000)
143	{ printf ("\n\n\tLine %d : out [%d] == %d\n", __LINE__, k, out [k]) ;
144	exit (1) ;
145	} ;
146
147	puts ("ok") ;
148
149	return ;
150	} /* float_to_int_test */
151
152	/*-------------------------------------------------------------------------------------
153	*/
154
155	static void
156	int_to_float_test (void)
157	{
158	static int input [BUFFER_LEN] ;
159	static int output [BUFFER_LEN] ;
160	static float temp [BUFFER_LEN] ;
161
162	int k ;
163
164	printf ("\tint_to_float_test ............................... ") ;
165
166	for (k = 0 ; k < ARRAY_LEN (input) ; k++)
167	input [k] = (k * 0x80000000) / ARRAY_LEN (input) ;
168
169	src_int_to_float_array (input, temp, ARRAY_LEN (temp)) ;
170	src_float_to_int_array (temp, output, ARRAY_LEN (output)) ;
171
172	for (k = 0 ; k < ARRAY_LEN (input) ; k++)
173	if (ABS (input [k] - output [k]) > 0)
174	{ printf ("\n\n\tLine %d : index %d %d -> %d\n", __LINE__, k, input [k], output [k]) ;
175	exit (1) ;
176	} ;
177
178	puts ("ok") ;
179
180	return ;
181	} /* int_to_float_test */
182