blob: dfaea9187a5401f367ee2d517d3a7721c8e770a9 [file] [log] [blame]
* Copyright (c) 2012 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.
#include <stdint.h>
#include "api/field_trials_view.h"
#include "api/network_state_predictor.h"
namespace webrtc {
bool AdaptiveThresholdExperimentIsDisabled(
const FieldTrialsView& key_value_config);
class OveruseDetector {
explicit OveruseDetector(const FieldTrialsView* key_value_config);
virtual ~OveruseDetector();
OveruseDetector(const OveruseDetector&) = delete;
OveruseDetector& operator=(const OveruseDetector&) = delete;
// Update the detection state based on the estimated inter-arrival time delta
// offset. `timestamp_delta` is the delta between the last timestamp which the
// estimated offset is based on and the last timestamp on which the last
// offset was based on, representing the time between detector updates.
// `num_of_deltas` is the number of deltas the offset estimate is based on.
// Returns the state after the detection update.
BandwidthUsage Detect(double offset,
double timestamp_delta,
int num_of_deltas,
int64_t now_ms);
// Returns the current detector state.
BandwidthUsage State() const;
void UpdateThreshold(double modified_offset, int64_t now_ms);
void InitializeExperiment(const FieldTrialsView& key_value_config);
bool in_experiment_;
double k_up_;
double k_down_;
double overusing_time_threshold_;
double threshold_;
int64_t last_update_ms_;
double prev_offset_;
double time_over_using_;
int overuse_counter_;
BandwidthUsage hypothesis_;
} // namespace webrtc