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/*
* Copyright 2018 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 MODULES_CONGESTION_CONTROLLER_GOOG_CC_LINK_CAPACITY_ESTIMATOR_H_
#define MODULES_CONGESTION_CONTROLLER_GOOG_CC_LINK_CAPACITY_ESTIMATOR_H_
#include "absl/types/optional.h"
#include "api/units/data_rate.h"
namespace webrtc {
class LinkCapacityEstimator {
public:
LinkCapacityEstimator();
DataRate UpperBound() const;
DataRate LowerBound() const;
void Reset();
void OnOveruseDetected(DataRate acknowledged_rate);
void OnProbeRate(DataRate probe_rate);
bool has_estimate() const;
DataRate estimate() const;
private:
friend class GoogCcStatePrinter;
void Update(DataRate capacity_sample, double alpha);
double deviation_estimate_kbps() const;
absl::optional<double> estimate_kbps_;
double deviation_kbps_ = 0.4;
};
} // namespace webrtc
#endif // MODULES_CONGESTION_CONTROLLER_GOOG_CC_LINK_CAPACITY_ESTIMATOR_H_
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