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

/*
** Copyright (c) 2002-2016, 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 <samplerate.h>

#include "util.h"

#define	BUFFER_LEN		2048
#define CB_READ_LEN		256

static void process_reset_test (int converter) ;
static void callback_reset_test (int converter) ;

static float data_one [BUFFER_LEN] ;
static float data_zero [BUFFER_LEN] ;

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

	process_reset_test (SRC_ZERO_ORDER_HOLD) ;
	process_reset_test (SRC_LINEAR) ;
	process_reset_test (SRC_SINC_FASTEST) ;

	callback_reset_test (SRC_ZERO_ORDER_HOLD) ;
	callback_reset_test (SRC_LINEAR) ;
	callback_reset_test (SRC_SINC_FASTEST) ;

	puts ("") ;

	return 0 ;
} /* main */

static void
process_reset_test (int converter)
{	static float output [BUFFER_LEN] ;

	SRC_STATE *src_state ;
	SRC_DATA src_data ;
	int k, error ;

	printf ("\tprocess_reset_test  (%-28s) ....... ", src_get_name (converter)) ;
	fflush (stdout) ;

	for (k = 0 ; k < BUFFER_LEN ; k++)
	{	data_one [k] = 1.0 ;
		data_zero [k] = 0.0 ;
		} ;

	/* Get a converter. */
	if ((src_state = src_new (converter, 1, &error)) == NULL)
	{	printf ("\n\nLine %d : src_new() failed : %s.\n\n", __LINE__, src_strerror (error)) ;
		exit (1) ;
		} ;

	/* Process a bunch of 1.0 valued samples. */
	src_data.data_in		= data_one ;
	src_data.data_out		= output ;
	src_data.input_frames	= BUFFER_LEN ;
	src_data.output_frames	= BUFFER_LEN ;
	src_data.src_ratio		= 0.9 ;
	src_data.end_of_input	= 1 ;

	if ((error = src_process (src_state, &src_data)) != 0)
	{	printf ("\n\nLine %d : src_simple () returned error : %s\n\n", __LINE__, src_strerror (error)) ;
		exit (1) ;
		} ;

	/* Reset the state of the converter.*/
	src_reset (src_state) ;

	/* Now process some zero data. */
	src_data.data_in		= data_zero ;
	src_data.data_out		= output ;
	src_data.input_frames	= BUFFER_LEN ;
	src_data.output_frames	= BUFFER_LEN ;
	src_data.src_ratio		= 0.9 ;
	src_data.end_of_input	= 1 ;

	if ((error = src_process (src_state, &src_data)) != 0)
	{	printf ("\n\nLine %d : src_simple () returned error : %s\n\n", __LINE__, src_strerror (error)) ;
		exit (1) ;
		} ;

	/* Finally make sure that the output data is zero ie reset was sucessful. */
	for (k = 0 ; k < BUFFER_LEN / 2 ; k++)
		if (output [k] != 0.0)
		{	printf ("\n\nLine %d : output [%d] should be 0.0, is %f.\n", __LINE__, k, output [k]) ;
			exit (1) ;
			} ;

	/* Make sure that this function has been exported. */
	src_set_ratio (src_state, 1.0) ;

	/* Delete converter. */
	src_state = src_delete (src_state) ;

	puts ("ok") ;
} /* process_reset_test */

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

typedef struct
{	int channels ;
	long count, total ;
	float *data ;
} TEST_CB_DATA ;

static long
test_callback_func (void *cb_data, float **data)
{	TEST_CB_DATA *pcb_data ;

	long frames ;

	if ((pcb_data = cb_data) == NULL)
		return 0 ;

	if (data == NULL)
		return 0 ;

	if (pcb_data->total - pcb_data->count > 0)
		frames = pcb_data->total - pcb_data->count ;
	else
		frames = 0 ;

	*data = pcb_data->data + pcb_data->count ;
	pcb_data->count += frames ;

	return frames ;
} /* test_callback_func */

static void
callback_reset_test (int converter)
{	static TEST_CB_DATA test_callback_data ;

	static float output [BUFFER_LEN] ;

	SRC_STATE *src_state ;

	double src_ratio = 1.1 ;
	long read_count, read_total ;
	int k, error ;

	printf ("\tcallback_reset_test (%-28s) ....... ", src_get_name (converter)) ;
	fflush (stdout) ;

	for (k = 0 ; k < ARRAY_LEN (data_one) ; k++)
	{	data_one [k] = 1.0 ;
		data_zero [k] = 0.0 ;
		} ;

	if ((src_state = src_callback_new (test_callback_func, converter, 1, &error, &test_callback_data)) == NULL)
	{	printf ("\n\nLine %d : %s\n\n", __LINE__, src_strerror (error)) ;
		exit (1) ;
		} ;

	/* Process a bunch of 1.0 valued samples. */
	test_callback_data.channels = 1 ;
	test_callback_data.count = 0 ;
	test_callback_data.total = ARRAY_LEN (data_one) ;
	test_callback_data.data = data_one ;

	read_total = 0 ;
	do
	{	read_count = (ARRAY_LEN (output) - read_total > CB_READ_LEN) ? CB_READ_LEN : ARRAY_LEN (output) - read_total ;
		read_count = src_callback_read (src_state, src_ratio, read_count, output + read_total) ;
		read_total += read_count ;
		}
	while (read_count > 0) ;

	/* Check for errors. */
	if ((error = src_error (src_state)) != 0)
	{	printf ("\n\nLine %d : %s\n\n", __LINE__, src_strerror (error)) ;
		exit (1) ;
		} ;

	/* Reset the state of the converter.*/
	src_reset (src_state) ;

	/* Process a bunch of 0.0 valued samples. */
	test_callback_data.channels = 1 ;
	test_callback_data.count = 0 ;
	test_callback_data.total = ARRAY_LEN (data_zero) ;
	test_callback_data.data = data_zero ;

	/* Now process some zero data. */
	read_total = 0 ;
	do
	{	read_count = (ARRAY_LEN (output) - read_total > CB_READ_LEN) ? CB_READ_LEN : ARRAY_LEN (output) - read_total ;
		read_count = src_callback_read (src_state, src_ratio, read_count, output + read_total) ;
		read_total += read_count ;
		}
	while (read_count > 0) ;

	/* Check for errors. */
	if ((error = src_error (src_state)) != 0)
	{	printf ("\n\nLine %d : %s\n\n", __LINE__, src_strerror (error)) ;
		exit (1) ;
		} ;

	/* Finally make sure that the output data is zero ie reset was sucessful. */
	for (k = 0 ; k < BUFFER_LEN / 2 ; k++)
		if (output [k] != 0.0)
		{	printf ("\n\nLine %d : output [%d] should be 0.0, is %f.\n\n", __LINE__, k, output [k]) ;
			save_oct_float ("output.dat", data_one, ARRAY_LEN (data_one), output, ARRAY_LEN (output)) ;
			exit (1) ;
			} ;

	/* Make sure that this function has been exported. */
	src_set_ratio (src_state, 1.0) ;

	/* Delete converter. */
	src_state = src_delete (src_state) ;

	puts ("ok") ;
} /* callback_reset_test */
Commit	Line	Data
8529da43 MG	1	/*
	2	** Copyright (c) 2002-2016, 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
	12	#include <samplerate.h>
	13
	14	#include "util.h"
	15
	16	#define BUFFER_LEN 2048
	17	#define CB_READ_LEN 256
	18
	19	static void process_reset_test (int converter) ;
	20	static void callback_reset_test (int converter) ;
	21
	22	static float data_one [BUFFER_LEN] ;
	23	static float data_zero [BUFFER_LEN] ;
	24
	25	int
	26	main (void)
	27	{
	28	puts ("") ;
	29
	30	process_reset_test (SRC_ZERO_ORDER_HOLD) ;
	31	process_reset_test (SRC_LINEAR) ;
	32	process_reset_test (SRC_SINC_FASTEST) ;
	33
	34	callback_reset_test (SRC_ZERO_ORDER_HOLD) ;
	35	callback_reset_test (SRC_LINEAR) ;
	36	callback_reset_test (SRC_SINC_FASTEST) ;
	37
	38	puts ("") ;
	39
	40	return 0 ;
	41	} /* main */
	42
	43	static void
	44	process_reset_test (int converter)
	45	{ static float output [BUFFER_LEN] ;
	46
	47	SRC_STATE *src_state ;
	48	SRC_DATA src_data ;
	49	int k, error ;
	50
	51	printf ("\tprocess_reset_test (%-28s) ....... ", src_get_name (converter)) ;
	52	fflush (stdout) ;
	53
	54	for (k = 0 ; k < BUFFER_LEN ; k++)
	55	{ data_one [k] = 1.0 ;
	56	data_zero [k] = 0.0 ;
	57	} ;
	58
	59	/* Get a converter. */
	60	if ((src_state = src_new (converter, 1, &error)) == NULL)
	61	{ printf ("\n\nLine %d : src_new() failed : %s.\n\n", __LINE__, src_strerror (error)) ;
	62	exit (1) ;
	63	} ;
	64
65	/* Process a bunch of 1.0 valued samples. */
66	src_data.data_in = data_one ;
67	src_data.data_out = output ;
68	src_data.input_frames = BUFFER_LEN ;
69	src_data.output_frames = BUFFER_LEN ;
70	src_data.src_ratio = 0.9 ;
71	src_data.end_of_input = 1 ;
72
73	if ((error = src_process (src_state, &src_data)) != 0)
74	{ printf ("\n\nLine %d : src_simple () returned error : %s\n\n", __LINE__, src_strerror (error)) ;
75	exit (1) ;
76	} ;
77
78	/* Reset the state of the converter.*/
79	src_reset (src_state) ;
80
81	/* Now process some zero data. */
82	src_data.data_in = data_zero ;
83	src_data.data_out = output ;
84	src_data.input_frames = BUFFER_LEN ;
85	src_data.output_frames = BUFFER_LEN ;
86	src_data.src_ratio = 0.9 ;
87	src_data.end_of_input = 1 ;
88
89	if ((error = src_process (src_state, &src_data)) != 0)
90	{ printf ("\n\nLine %d : src_simple () returned error : %s\n\n", __LINE__, src_strerror (error)) ;
91	exit (1) ;
92	} ;
93
94	/* Finally make sure that the output data is zero ie reset was sucessful. */
95	for (k = 0 ; k < BUFFER_LEN / 2 ; k++)
96	if (output [k] != 0.0)
97	{ printf ("\n\nLine %d : output [%d] should be 0.0, is %f.\n", __LINE__, k, output [k]) ;
98	exit (1) ;
99	} ;
100
101	/* Make sure that this function has been exported. */
102	src_set_ratio (src_state, 1.0) ;
103
104	/* Delete converter. */
105	src_state = src_delete (src_state) ;
106
107	puts ("ok") ;
108	} /* process_reset_test */
109
110	/*==============================================================================
111	*/
112
113	typedef struct
114	{ int channels ;
115	long count, total ;
116	float *data ;
117	} TEST_CB_DATA ;
118
119	static long
120	test_callback_func (void cb_data, float *data)
121	{ TEST_CB_DATA *pcb_data ;
122
123	long frames ;
124
125	if ((pcb_data = cb_data) == NULL)
126	return 0 ;
127
128	if (data == NULL)
129	return 0 ;
130
131	if (pcb_data->total - pcb_data->count > 0)
132	frames = pcb_data->total - pcb_data->count ;
133	else
134	frames = 0 ;
135
136	*data = pcb_data->data + pcb_data->count ;
137	pcb_data->count += frames ;
138
139	return frames ;
140	} /* test_callback_func */
141
142	static void
143	callback_reset_test (int converter)
144	{ static TEST_CB_DATA test_callback_data ;
145
146	static float output [BUFFER_LEN] ;
147
148	SRC_STATE *src_state ;
149
150	double src_ratio = 1.1 ;
151	long read_count, read_total ;
152	int k, error ;
153
154	printf ("\tcallback_reset_test (%-28s) ....... ", src_get_name (converter)) ;
155	fflush (stdout) ;
156
157	for (k = 0 ; k < ARRAY_LEN (data_one) ; k++)
158	{ data_one [k] = 1.0 ;
159	data_zero [k] = 0.0 ;
160	} ;
161
162	if ((src_state = src_callback_new (test_callback_func, converter, 1, &error, &test_callback_data)) == NULL)
163	{ printf ("\n\nLine %d : %s\n\n", __LINE__, src_strerror (error)) ;
164	exit (1) ;
165	} ;
166
167	/* Process a bunch of 1.0 valued samples. */
168	test_callback_data.channels = 1 ;
169	test_callback_data.count = 0 ;
170	test_callback_data.total = ARRAY_LEN (data_one) ;
171	test_callback_data.data = data_one ;
172
173	read_total = 0 ;
174	do
175	{ read_count = (ARRAY_LEN (output) - read_total > CB_READ_LEN) ? CB_READ_LEN : ARRAY_LEN (output) - read_total ;
176	read_count = src_callback_read (src_state, src_ratio, read_count, output + read_total) ;
177	read_total += read_count ;
178	}
179	while (read_count > 0) ;
180
181	/* Check for errors. */
182	if ((error = src_error (src_state)) != 0)
183	{ printf ("\n\nLine %d : %s\n\n", __LINE__, src_strerror (error)) ;
184	exit (1) ;
185	} ;
186
187	/* Reset the state of the converter.*/
188	src_reset (src_state) ;
189
190	/* Process a bunch of 0.0 valued samples. */
191	test_callback_data.channels = 1 ;
192	test_callback_data.count = 0 ;
193	test_callback_data.total = ARRAY_LEN (data_zero) ;
194	test_callback_data.data = data_zero ;
195
196	/* Now process some zero data. */
197	read_total = 0 ;
198	do
199	{ read_count = (ARRAY_LEN (output) - read_total > CB_READ_LEN) ? CB_READ_LEN : ARRAY_LEN (output) - read_total ;
200	read_count = src_callback_read (src_state, src_ratio, read_count, output + read_total) ;
201	read_total += read_count ;
202	}
203	while (read_count > 0) ;
204
205	/* Check for errors. */
206	if ((error = src_error (src_state)) != 0)
207	{ printf ("\n\nLine %d : %s\n\n", __LINE__, src_strerror (error)) ;
208	exit (1) ;
209	} ;
210
211	/* Finally make sure that the output data is zero ie reset was sucessful. */
212	for (k = 0 ; k < BUFFER_LEN / 2 ; k++)
213	if (output [k] != 0.0)
214	{ printf ("\n\nLine %d : output [%d] should be 0.0, is %f.\n\n", __LINE__, k, output [k]) ;
215	save_oct_float ("output.dat", data_one, ARRAY_LEN (data_one), output, ARRAY_LEN (output)) ;
216	exit (1) ;
217	} ;
218
219	/* Make sure that this function has been exported. */
220	src_set_ratio (src_state, 1.0) ;
221
222	/* Delete converter. */
223	src_state = src_delete (src_state) ;
224
225	puts ("ok") ;
226	} /* callback_reset_test */
227
228