--- /dev/null
+/*
+ * Copyright 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef A_UTILS_H_
+
+#define A_UTILS_H_
+
+/* ============================ math templates ============================ */
+
+/* T must be integer type, den must not be 0 */
+template<class T>
+inline static const T divRound(const T &nom, const T &den) {
+ if ((nom >= 0) ^ (den >= 0)) {
+ return (nom - den / 2) / den;
+ } else {
+ return (nom + den / 2) / den;
+ }
+}
+
+/* == ceil(nom / den). T must be integer type, den must not be 0 */
+template<class T>
+inline static const T divUp(const T &nom, const T &den) {
+ if (den < 0) {
+ return (nom < 0 ? nom + den + 1 : nom) / den;
+ } else {
+ return (nom < 0 ? nom : nom + den - 1) / den;
+ }
+}
+
+template<class T>
+inline static T abs(const T &a) {
+ return a < 0 ? -a : a;
+}
+
+template<class T>
+inline static const T &min(const T &a, const T &b) {
+ return a < b ? a : b;
+}
+
+template<class T>
+inline static const T &max(const T &a, const T &b) {
+ return a > b ? a : b;
+}
+
+/* T must be integer type, period must be positive */
+template<class T>
+inline static T periodicError(const T &val, const T &period) {
+ T err = abs(val) % period;
+ return (err < (period / 2)) ? err : (period - err);
+}
+
+#endif // A_UTILS_H_
LOCAL_MODULE_TAGS := tests
LOCAL_SRC_FILES := \
- SurfaceMediaSource_test.cpp \
+ SurfaceMediaSource_test.cpp \
DummyRecorder.cpp \
LOCAL_SHARED_LIBRARIES := \
libgtest_main \
LOCAL_C_INCLUDES := \
- bionic \
- bionic/libstdc++/include \
- external/gtest/include \
- external/stlport/stlport \
+ bionic \
+ bionic/libstdc++/include \
+ external/gtest/include \
+ external/stlport/stlport \
frameworks/av/media/libstagefright \
frameworks/av/media/libstagefright/include \
$(TOP)/frameworks/native/include/media/openmax \
endif
+
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := Utils_test
+
+LOCAL_MODULE_TAGS := tests
+
+LOCAL_SRC_FILES := \
+ Utils_test.cpp \
+
+LOCAL_SHARED_LIBRARIES := \
+ libcutils \
+ liblog \
+ libmedia \
+ libstagefright \
+ libstagefright_foundation \
+ libstagefright_omx \
+ libstlport \
+
+LOCAL_STATIC_LIBRARIES := \
+ libgtest \
+ libgtest_main \
+
+LOCAL_C_INCLUDES := \
+ bionic \
+ bionic/libstdc++/include \
+ external/gtest/include \
+ external/stlport/stlport \
+ frameworks/av/include \
+ frameworks/av/media/libstagefright \
+ frameworks/av/media/libstagefright/include \
+ $(TOP)/frameworks/native/include/media/openmax \
+
+include $(BUILD_EXECUTABLE)
+
# Include subdirectory makefiles
# ============================================================
--- /dev/null
+/*
+ * Copyright 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "Utils_test"
+
+#include <gtest/gtest.h>
+#include <utils/String8.h>
+#include <utils/Errors.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/foundation/AUtils.h>
+#include <media/stagefright/Utils.h>
+
+namespace android {
+
+class UtilsTest : public ::testing::Test {
+};
+
+TEST_F(UtilsTest, TestFourCC) {
+ ASSERT_EQ(FOURCC('s', 't', 'm' , 'u'), 'stmu');
+}
+
+TEST_F(UtilsTest, TestMathTemplates) {
+ ASSERT_EQ(divRound(-10, -4), 3);
+ ASSERT_EQ(divRound(-11, -4), 3);
+ ASSERT_EQ(divRound(-12, -4), 3);
+ ASSERT_EQ(divRound(-13, -4), 3);
+ ASSERT_EQ(divRound(-14, -4), 4);
+
+ ASSERT_EQ(divRound(10, -4), -3);
+ ASSERT_EQ(divRound(11, -4), -3);
+ ASSERT_EQ(divRound(12, -4), -3);
+ ASSERT_EQ(divRound(13, -4), -3);
+ ASSERT_EQ(divRound(14, -4), -4);
+
+ ASSERT_EQ(divRound(-10, 4), -3);
+ ASSERT_EQ(divRound(-11, 4), -3);
+ ASSERT_EQ(divRound(-12, 4), -3);
+ ASSERT_EQ(divRound(-13, 4), -3);
+ ASSERT_EQ(divRound(-14, 4), -4);
+
+ ASSERT_EQ(divRound(10, 4), 3);
+ ASSERT_EQ(divRound(11, 4), 3);
+ ASSERT_EQ(divRound(12, 4), 3);
+ ASSERT_EQ(divRound(13, 4), 3);
+ ASSERT_EQ(divRound(14, 4), 4);
+
+ ASSERT_EQ(divUp(-11, -4), 3);
+ ASSERT_EQ(divUp(-12, -4), 3);
+ ASSERT_EQ(divUp(-13, -4), 4);
+
+ ASSERT_EQ(divUp(11, -4), -2);
+ ASSERT_EQ(divUp(12, -4), -3);
+ ASSERT_EQ(divUp(13, -4), -3);
+
+ ASSERT_EQ(divUp(-11, 4), -2);
+ ASSERT_EQ(divUp(-12, 4), -3);
+ ASSERT_EQ(divUp(-13, 4), -3);
+
+ ASSERT_EQ(divUp(11, 4), 3);
+ ASSERT_EQ(divUp(12, 4), 3);
+ ASSERT_EQ(divUp(13, 4), 4);
+
+ ASSERT_EQ(abs(5L), 5L);
+ ASSERT_EQ(abs(-25), 25);
+
+ ASSERT_EQ(min(5.6f, 6.0f), 5.6f);
+ ASSERT_EQ(min(6.0f, 5.6f), 5.6f);
+ ASSERT_EQ(min(-4.3, 8.6), -4.3);
+ ASSERT_EQ(min(8.6, -4.3), -4.3);
+
+ ASSERT_EQ(max(5.6f, 6.0f), 6.0f);
+ ASSERT_EQ(max(6.0f, 5.6f), 6.0f);
+ ASSERT_EQ(max(-4.3, 8.6), 8.6);
+ ASSERT_EQ(max(8.6, -4.3), 8.6);
+
+ ASSERT_EQ(periodicError(124, 100), 24);
+ ASSERT_EQ(periodicError(288, 100), 12);
+ ASSERT_EQ(periodicError(-345, 100), 45);
+ ASSERT_EQ(periodicError(-493, 100), 7);
+ ASSERT_EQ(periodicError(-550, 100), 50);
+ ASSERT_EQ(periodicError(-600, 100), 0);
+}
+
+} // namespace android
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