From 824fe914fee7fb5dc8c8c14940e511cda089c36d Mon Sep 17 00:00:00 2001
From: Thomas Turner <thomastdt@googlemail.com>
Date: Thu, 23 Mar 2017 22:48:28 -0700
Subject: [PATCH] avcodec/tests: added test for celp_math.c

Signed-off-by: Thomas Turner <thomastdt@googlemail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
 libavcodec/Makefile          |  1 +
 libavcodec/tests/celp_math.c | 48 ++++++++++++++++++++++++++++++++++++
 tests/fate/libavcodec.mak    |  5 ++++
 3 files changed, 54 insertions(+)
 create mode 100644 libavcodec/tests/celp_math.c

diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index 89296cde8c..05be516bba 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -1024,6 +1024,7 @@ SKIPHEADERS-$(CONFIG_VDPAU)            += vdpau.h vdpau_internal.h
 SKIPHEADERS-$(CONFIG_VIDEOTOOLBOX)     += videotoolbox.h vda_vt_internal.h
 
 TESTPROGS = avpacket                                                    \
+            celp_math                                                   \
             imgconvert                                                  \
             jpeg2000dwt                                                 \
             mathops                                                    \
diff --git a/libavcodec/tests/celp_math.c b/libavcodec/tests/celp_math.c
new file mode 100644
index 0000000000..4b1c1867b5
--- /dev/null
+++ b/libavcodec/tests/celp_math.c
@@ -0,0 +1,48 @@
+/*
+ * 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"
+
+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 diff, largest, absa, absb;
+
+    float   r = ff_dot_productf(f1, f2, FF_ARRAY_ELEMS(f1));
+    int64_t d = ff_dot_product(i1, i2, FF_ARRAY_ELEMS(i1));
+
+#   define IsAlmostEqual(A, B, epsilon) \
+        diff = fabsf(A - B); \
+        absa = fabsf(A); \
+        absb = fabsf(B); \
+        largest = (absb > absa) ? absb : absa; \
+        av_assert0(diff <= largest * epsilon);
+
+    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;
+}
diff --git a/tests/fate/libavcodec.mak b/tests/fate/libavcodec.mak
index 32b0c1e6ab..07417f0e6a 100644
--- a/tests/fate/libavcodec.mak
+++ b/tests/fate/libavcodec.mak
@@ -8,6 +8,11 @@ fate-cabac: libavcodec/tests/cabac$(EXESUF)
 fate-cabac: CMD = run libavcodec/tests/cabac
 fate-cabac: REF = /dev/null
 
+FATE_LIBAVCODEC-yes += fate-celp_math
+fate-celp_math: libavcodec/tests/celp_math$(EXESUF)
+fate-celp_math: CMD = run libavcodec/tests/celp_math
+fate-celp_math: REF = /dev/null
+
 FATE_LIBAVCODEC-$(CONFIG_GOLOMB) += fate-golomb
 fate-golomb: libavcodec/tests/golomb$(EXESUF)
 fate-golomb: CMD = run libavcodec/tests/golomb