1 files changed, 93 insertions, 0 deletions
diff --git a/thirdparty/opus/celt/tests/test_unit_laplace.c b/thirdparty/opus/celt/tests/test_unit_laplace.c
new file mode 100644
index 0000000000..22951e29ee
--- /dev/null
+++ b/thirdparty/opus/celt/tests/test_unit_laplace.c
@@ -0,0 +1,93 @@
+/* Copyright (c) 2008-2011 Xiph.Org Foundation, Mozilla Corporation
+   Written by Jean-Marc Valin and Timothy B. Terriberry */
+/*
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions
+   are met:
+
+   - Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+
+   - Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+   ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
+   OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+   EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+   PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+   PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+   LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "laplace.h"
+#define CELT_C
+#include "stack_alloc.h"
+
+#include "entenc.c"
+#include "entdec.c"
+#include "entcode.c"
+#include "laplace.c"
+
+#define DATA_SIZE 40000
+
+int ec_laplace_get_start_freq(int decay)
+{
+   opus_uint32 ft = 32768 - LAPLACE_MINP*(2*LAPLACE_NMIN+1);
+   int fs = (ft*(16384-decay))/(16384+decay);
+   return fs+LAPLACE_MINP;
+}
+
+int main(void)
+{
+   int i;
+   int ret = 0;
+   ec_enc enc;
+   ec_dec dec;
+   unsigned char *ptr;
+   int val[10000], decay[10000];
+   ALLOC_STACK;
+   ptr = (unsigned char *)malloc(DATA_SIZE);
+   ec_enc_init(&enc,ptr,DATA_SIZE);
+
+   val[0] = 3; decay[0] = 6000;
+   val[1] = 0; decay[1] = 5800;
+   val[2] = -1; decay[2] = 5600;
+   for (i=3;i<10000;i++)
+   {
+      val[i] = rand()%15-7;
+      decay[i] = rand()%11000+5000;
+   }
+   for (i=0;i<10000;i++)
+      ec_laplace_encode(&enc, &val[i],
+            ec_laplace_get_start_freq(decay[i]), decay[i]);
+
+   ec_enc_done(&enc);
+
+   ec_dec_init(&dec,ec_get_buffer(&enc),ec_range_bytes(&enc));
+
+   for (i=0;i<10000;i++)
+   {
+      int d = ec_laplace_decode(&dec,
+            ec_laplace_get_start_freq(decay[i]), decay[i]);
+      if (d != val[i])
+      {
+         fprintf (stderr, "Got %d instead of %d\n", d, val[i]);
+         ret = 1;
+      }
+   }
+
+   free(ptr);
+   return ret;
+}