| /* |
| * Copyright (c) 2015 The WebRTC project authors. All Rights Reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| #ifndef WEBRTC_MODULES_VIDEO_CODING_UTILITY_MOVING_AVERAGE_H_ |
| #define WEBRTC_MODULES_VIDEO_CODING_UTILITY_MOVING_AVERAGE_H_ |
| |
| #include <vector> |
| |
| #include "webrtc/base/optional.h" |
| |
| namespace webrtc { |
| class MovingAverage { |
| public: |
| explicit MovingAverage(size_t s); |
| void AddSample(int sample); |
| rtc::Optional<int> GetAverage() const; |
| rtc::Optional<int> GetAverage(size_t num_samples) const; |
| void Reset(); |
| size_t size() const; |
| |
| private: |
| size_t count_ = 0; |
| int sum_ = 0; |
| std::vector<int> sum_history_; |
| }; |
| } // namespace webrtc |
| |
| #endif // WEBRTC_MODULES_VIDEO_CODING_UTILITY_MOVING_AVERAGE_H_ |