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bbc926d62c
Values of these parameters are always the same and thus can be hardcoded Bug: None Change-Id: Ie19a1c6305d503ad2c92af503006a72b7981e178 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/298622 Auto-Submit: Danil Chapovalov <danilchap@webrtc.org> Commit-Queue: Per Kjellander <perkj@webrtc.org> Reviewed-by: Per Kjellander <perkj@webrtc.org> Cr-Commit-Position: refs/heads/main@{#39637}
66 lines
2.1 KiB
C++
66 lines
2.1 KiB
C++
/*
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* Copyright (c) 2013 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_REMOTE_BITRATE_ESTIMATOR_OVERUSE_ESTIMATOR_H_
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#define MODULES_REMOTE_BITRATE_ESTIMATOR_OVERUSE_ESTIMATOR_H_
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#include <stdint.h>
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#include <deque>
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#include "api/network_state_predictor.h"
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namespace webrtc {
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class OveruseEstimator {
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public:
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OveruseEstimator();
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OveruseEstimator(const OveruseEstimator&) = delete;
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OveruseEstimator& operator=(const OveruseEstimator&) = delete;
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~OveruseEstimator() = default;
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// Update the estimator with a new sample. The deltas should represent deltas
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// between timestamp groups as defined by the InterArrival class.
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// `current_hypothesis` should be the hypothesis of the over-use detector at
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// this time.
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void Update(int64_t t_delta,
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double ts_delta,
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int size_delta,
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BandwidthUsage current_hypothesis,
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int64_t now_ms);
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// Returns the estimated noise/jitter variance in ms^2.
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double var_noise() const { return var_noise_; }
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// Returns the estimated inter-arrival time delta offset in ms.
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double offset() const { return offset_; }
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// Returns the number of deltas which the current over-use estimator state is
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// based on.
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int num_of_deltas() const { return num_of_deltas_; }
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private:
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double UpdateMinFramePeriod(double ts_delta);
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void UpdateNoiseEstimate(double residual, double ts_delta, bool stable_state);
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int num_of_deltas_ = 0;
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double slope_ = 8.0 / 512.0;
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double offset_ = 0;
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double prev_offset_ = 0;
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double E_[2][2] = {{100.0, 0.0}, {0.0, 1e-1}};
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double process_noise_[2] = {1e-13, 1e-3};
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double avg_noise_ = 0.0;
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double var_noise_ = 50.0;
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std::deque<double> ts_delta_hist_;
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};
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} // namespace webrtc
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#endif // MODULES_REMOTE_BITRATE_ESTIMATOR_OVERUSE_ESTIMATOR_H_
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