84f6a3fc6b
We use Optional in our public API, so its header should be in webrtc/api/. BUG=webrtc:8205 Review-Url: https://codereview.webrtc.org/3011943002 Cr-Commit-Position: refs/heads/master@{#19693}
36 lines
1020 B
C++
36 lines
1020 B
C++
/*
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* Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef WEBRTC_MODULES_VIDEO_CODING_UTILITY_MOVING_AVERAGE_H_
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#define WEBRTC_MODULES_VIDEO_CODING_UTILITY_MOVING_AVERAGE_H_
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#include <vector>
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#include "webrtc/api/optional.h"
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namespace webrtc {
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class MovingAverage {
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public:
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explicit MovingAverage(size_t s);
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void AddSample(int sample);
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rtc::Optional<int> GetAverage() const;
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rtc::Optional<int> GetAverage(size_t num_samples) const;
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void Reset();
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size_t size() const;
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private:
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size_t count_ = 0;
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int sum_ = 0;
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std::vector<int> sum_history_;
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};
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} // namespace webrtc
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#endif // WEBRTC_MODULES_VIDEO_CODING_UTILITY_MOVING_AVERAGE_H_
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