1 files changed, 49 insertions, 0 deletions
diff --git a/libavcodec/tests/celp_math.c b/libavcodec/tests/celp_math.c
new file mode 100644
index 0000000000..669ea70362
--- /dev/null
+++ b/libavcodec/tests/celp_math.c
@@ -0,0 +1,49 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/libm.h"
+#include "libavcodec/celp_math.c"
+
+static inline void IsAlmostEqual(float A, float B, float epsilon)
+{
+    float diff = fabsf(A - B);
+    float absa = fabsf(A);
+    float absb = fabsf(B);
+    float largest = (absb > absa) ? absb : absa;
+    av_assert0(diff <= largest * epsilon);
+}
+
+int main(void)
+{
+    int i;
+    const float f1[3]   = {0.0,  1.1,  2.2};
+    const float f2[3]   = {3.3,  4.4,  5.5};
+    const int16_t i1[3] = {6,  7,  8};
+    const int16_t i2[3] = {9, 10, 11};
+
+    float   r = ff_dot_productf(f1, f2, FF_ARRAY_ELEMS(f1));
+    int64_t d = ff_dot_product(i1, i2, FF_ARRAY_ELEMS(i1));
+
+    IsAlmostEqual(16.94f, r, 0.000001f);
+    av_assert0(212 == d);
+
+    for (i = 1024; i >= 1; i/=2)
+        av_assert0(ff_log2_q15(i) == (1<<15)*((int)log2(i))+(1<<2));
+
+    return 0;
+}