Add libsamplerate for resampling decoder output

1 files changed, 208 insertions, 0 deletions

diff --git a/lib/libsamplerate/libsamplerate-0.2.2/tests/misc_test.c b/lib/libsamplerate/libsamplerate-0.2.2/tests/misc_test.c
new file mode 100755
index 00000000..6d3c0d4e
--- /dev/null
+++ b/lib/libsamplerate/libsamplerate-0.2.2/tests/misc_test.c
@@ -0,0 +1,208 @@
+/*
+** 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
+*/
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#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);
+
+int
+main (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) ;
+#ifdef ENABLE_SINC_FAST_CONVERTER
+	zero_input_test (SRC_SINC_FASTEST) ;
+#endif
+	get_channels_test (SRC_ZERO_ORDER_HOLD) ;
+	get_channels_test (SRC_LINEAR) ;
+#ifdef ENABLE_SINC_FAST_CONVERTER
+	get_channels_test (SRC_SINC_FASTEST) ;
+#endif
+	puts ("") ;
+	return 0 ;
+} /* main */
+
+static void
+name_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 void
+src_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 void
+error_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 void
+zero_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);
+	}
+}