Bundle libsamplerate

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

diff --git a/libsamplerate/tests/downsample_test.c b/libsamplerate/tests/downsample_test.c
new file mode 100644 (file)
index 0000000..9f438ef
--- /dev/null
+++ b/libsamplerate/tests/downsample_test.c
@@ -0,0 +1,51 @@
+/*
+** 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/erikd/libsamplerate/blob/master/COPYING
+*/
+
+#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) ;
+       downsample_test (SRC_SINC_FASTEST) ;
+       downsample_test (SRC_SINC_MEDIUM_QUALITY) ;
+       downsample_test (SRC_SINC_BEST_QUALITY) ;
+
+       puts ("") ;
+
+       return 0 ;
+} /* main */