diff options
Diffstat (limited to 'media/libstagefright/wifi-display/TimeSeries.h')
-rw-r--r-- | media/libstagefright/wifi-display/TimeSeries.h | 46 |
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 --- /dev/null +++ b/media/libstagefright/wifi-display/TimeSeries.h @@ -0,0 +1,46 @@ +/* + * 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_ + |