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92ea95e34a
In https://webrtc-review.googlesource.com/c/src/+/1560 we moved WebRTC from src/webrtc to src/ (in order to preserve an healthy git history). This CL takes care of fixing header guards, #include paths, etc... NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true TBR=tommi@webrtc.org Bug: chromium:611808 Change-Id: Iea91618212bee0af16aa3f05071eab8f93706578 Reviewed-on: https://webrtc-review.googlesource.com/1561 Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Reviewed-by: Henrik Kjellander <kjellander@webrtc.org> Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org> Cr-Commit-Position: refs/heads/master@{#19846}
46 lines
1.4 KiB
C++
46 lines
1.4 KiB
C++
/*
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* Copyright (c) 2017 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 MODULES_CONGESTION_CONTROLLER_BITRATE_ESTIMATOR_H_
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#define MODULES_CONGESTION_CONTROLLER_BITRATE_ESTIMATOR_H_
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#include <vector>
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#include "api/optional.h"
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namespace webrtc {
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// Computes a bayesian estimate of the throughput given acks containing
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// the arrival time and payload size. Samples which are far from the current
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// estimate or are based on few packets are given a smaller weight, as they
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// are considered to be more likely to have been caused by, e.g., delay spikes
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// unrelated to congestion.
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class BitrateEstimator {
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public:
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BitrateEstimator();
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virtual ~BitrateEstimator();
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virtual void Update(int64_t now_ms, int bytes);
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virtual rtc::Optional<uint32_t> bitrate_bps() const;
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virtual void ExpectFastRateChange();
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private:
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float UpdateWindow(int64_t now_ms, int bytes, int rate_window_ms);
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int sum_;
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int64_t current_win_ms_;
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int64_t prev_time_ms_;
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float bitrate_estimate_;
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float bitrate_estimate_var_;
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};
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} // namespace webrtc
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#endif // MODULES_CONGESTION_CONTROLLER_BITRATE_ESTIMATOR_H_
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