1 files changed, 46 insertions, 0 deletions
diff --git a/media/libstagefright/wifi-display/TimeSeries.h b/media/libstagefright/wifi-display/TimeSeries.h
new file mode 100644
index 0000000..c818d51
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+++ b/media/libstagefright/wifi-display/TimeSeries.h
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+/*
+ * Copyright 2012, 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 TIME_SERIES_H_
+
+#define TIME_SERIES_H_
+
+#include <sys/types.h>
+
+namespace android {
+
+struct TimeSeries {
+    TimeSeries();
+
+    void add(double val);
+
+    double mean() const;
+    double sdev() const;
+
+private:
+    enum {
+        kHistorySize = 20
+    };
+    double mValues[kHistorySize];
+
+    size_t mCount;
+    double mSum;
+};
+
+}  // namespace android
+
+#endif  // TIME_SERIES_H_
+