/*** 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/libsndfile/libsamplerate/blob/master/COPYING*/ #include <stdio.h>#include <stdlib.h>#include <string.h> #include <samplerate.h> #include "util.h" static void name_test (void) ;static void error_test (void) ;static void src_ratio_test (void) ;static void zero_input_test (int converter) ;static void get_channels_test (int converter); intmain (void){	puts ("") ; 	printf ("    version : %s\n\n", src_get_version ()) ; 	/* Current max converter is SRC_LINEAR. */	name_test () ; 	error_test () ; 	src_ratio_test () ; 	zero_input_test (SRC_ZERO_ORDER_HOLD) ;	zero_input_test (SRC_LINEAR) ;	zero_input_test (SRC_SINC_FASTEST) ; 	get_channels_test (SRC_ZERO_ORDER_HOLD) ;	get_channels_test (SRC_LINEAR) ;	get_channels_test (SRC_SINC_FASTEST) ; 	puts ("") ;	return 0 ;} /* main */ static voidname_test (void){	const char	*name ;	int	k = 0 ; 	puts ("    name_test :") ; 	while (1)	{	name = src_get_name (k) ;		if (name == NULL)			break ;		printf ("\tName %d : %s\n", k, name) ;		printf ("\tDesc %d : %s\n", k, src_get_description (k)) ;		k ++ ;		} ; 	puts ("") ; 	return ;} /* name_test */ /*------------------------------------------------------------------------------*/ typedef struct{	double	ratio ;	int		should_pass ;} RATIO_TEST ; static RATIO_TEST ratio_test [] ={	{	1.0 / 256.1,	0 },	{	1.0 / 256.0,	1 },	{	1.0,			1 },	{	256.0, 			1 },	{	256.1,			0 },	{	-1.0,			0 }} ; static voidsrc_ratio_test (void){	int k ; 	puts ("    src_ratio_test (SRC ratio must be in range [1/256, 256]):" ) ;  	for (k = 0 ; k < ARRAY_LEN (ratio_test) ; k++)	{	if (ratio_test [k].should_pass && src_is_valid_ratio (ratio_test [k].ratio) == 0)		{	printf ("\n\nLine %d : SRC ratio %f should have passed.\n\n", __LINE__, ratio_test [k].ratio) ;			exit (1) ;			} ;		if (! ratio_test [k].should_pass && src_is_valid_ratio (ratio_test [k].ratio) != 0)		{	printf ("\n\nLine %d : SRC ratio %f should not have passed.\n\n", __LINE__, ratio_test [k].ratio) ;			exit (1) ;			} ;		printf ("\t SRC ratio (%9.5f) : %s ................... ok\n", ratio_test [k].ratio,			(ratio_test [k].should_pass ? "pass" : "fail")) ;		} ; 	puts ("") ; 	return ;} /* src_ratio_test */ static voiderror_test (void){	const char *errorstr ;	int		k, errors = 0 ; 	puts ("    error_test :") ; 	for (k = 0 ; 1 ; k++)	{	errorstr = src_strerror (k) ;		printf ("\t%-2d : %s\n", k, errorstr) ;		if (errorstr == NULL)		{	errors ++ ;			continue ;			} ;		if (strstr (errorstr, "Placeholder.") == errorstr)			break ;		} ; 	if (errors != 0)	{	printf ("\n\nLine %d : Missing error numbers above.\n\n", __LINE__) ;		exit (1) ;		} ; 	puts ("") ; 	return ;} /* error_test */ static voidzero_input_test (int converter){	SRC_DATA data ;	SRC_STATE *state ;	float out [100] ;	int error ; 	printf ("    %s (%-26s) ........ ", __func__, src_get_name (converter)) ;	fflush (stdout) ; 	if ((state = src_new (converter, 1, &error)) == NULL)	{	printf ("\n\nLine %d : src_new failed : %s.\n\n", __LINE__, src_strerror (error)) ;		exit (1) ;		} ; 	data.data_in = (float *) (size_t) 0xdeadbeef ;	data.input_frames = 0 ;	data.data_out = out ;	data.output_frames = ARRAY_LEN (out) ;	data.end_of_input = 0 ;	data.src_ratio = 1.0 ; 	if ((error = src_process (state, &data)))	{	printf ("\n\nLine %d : src_new failed : %s.\n\n", __LINE__, src_strerror (error)) ;		exit (1) ;		} ; 	state = src_delete (state) ; 	puts ("ok") ;} /* zero_input_test */ static void get_channels_test(int converter){	SRC_STATE *state;	int channels_in, channels_out;	const char *errorstr; 	state = NULL;	if ((channels_out = src_get_channels(state)) >= 0)	{		printf ("\n\nLine %d : Return value should be negative, was : %d.\n\n", __LINE__, channels_out) ;		exit (1) ;	}	errorstr = src_strerror(-channels_out);	if (!strstr(errorstr, "NULL"))	{		printf ("\n\nLine %d : Inverted output should be valid error code mentioning a NULL pointer, was : %s.\n\n", __LINE__, errorstr) ;		exit (1) ;	} 	for (channels_in = 1; channels_in <= 8; channels_in++)	{		int error;		state = src_new(converter, channels_in, &error);		if ((channels_out = src_get_channels(state)) != channels_in)		{			printf ("\n\nLine %d : Return value should be %d, was : %d.\n\n", __LINE__, channels_in, channels_out) ;			exit (1) ;		}		state = src_delete(state);	}}