Add libsamplerate for resampling decoder output

1 files changed, 61 insertions, 0 deletions

diff --git a/lib/libsamplerate/libsamplerate-0.2.2/tests/downsample_test.c b/lib/libsamplerate/libsamplerate-0.2.2/tests/downsample_test.c
new file mode 100755
index 00000000..6a4a75e1
--- /dev/null
+++ b/lib/libsamplerate/libsamplerate-0.2.2/tests/downsample_test.c
@@ -0,0 +1,61 @@
+/*
+** Copyright (c) 2008-2016, 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 <samplerate.h>
+
+#include "util.h"
+
+static void
+downsample_test (int converter)
+{	static float in [1000], out [10] ;
+	SRC_DATA data ;
+
+    printf ("        downsample_test     (%-28s) ....... ", src_get_name (converter)) ;
+	fflush (stdout) ;
+
+	data.src_ratio = 1.0 / 255.0 ;
+	data.input_frames = ARRAY_LEN (in) ;
+	data.output_frames = ARRAY_LEN (out) ;
+	data.data_in = in ;
+	data.data_out = out ;
+
+	if (src_simple (&data, converter, 1))
+	{	puts ("src_simple failed.") ;
+		exit (1) ;
+		} ;
+
+	puts ("ok") ;
+} /* downsample_test */
+
+int
+main (void)
+{
+	puts ("") ;
+
+	downsample_test (SRC_ZERO_ORDER_HOLD) ;
+	downsample_test (SRC_LINEAR) ;
+#ifdef ENABLE_SINC_FAST_CONVERTER
+	downsample_test (SRC_SINC_FASTEST) ;
+#endif
+#ifdef ENABLE_SINC_MEDIUM_CONVERTER
+	downsample_test (SRC_SINC_MEDIUM_QUALITY) ;
+#endif
+#ifdef ENABLE_SINC_BEST_CONVERTER
+	downsample_test (SRC_SINC_BEST_QUALITY) ;
+#endif
+
+	puts ("") ;
+
+	return 0 ;
+} /* main */