| /* |
| * 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. |
| */ |
| #ifndef WEBRTC_MODULES_REMOTE_BITRATE_ESTIMATOR_OVERUSE_DETECTOR_H_ |
| #define WEBRTC_MODULES_REMOTE_BITRATE_ESTIMATOR_OVERUSE_DETECTOR_H_ |
| |
| #include <list> |
| |
| #include "webrtc/base/constructormagic.h" |
| #include "webrtc/modules/include/module_common_types.h" |
| #include "webrtc/modules/remote_bitrate_estimator/include/bwe_defines.h" |
| #include "webrtc/typedefs.h" |
| |
| namespace webrtc { |
| enum RateControlRegion; |
| |
| bool AdaptiveThresholdExperimentIsDisabled(); |
| |
| class OveruseDetector { |
| public: |
| explicit OveruseDetector(const OverUseDetectorOptions& options); |
| virtual ~OveruseDetector(); |
| |
| // 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; |
| |
| private: |
| void UpdateThreshold(double modified_offset, int64_t now_ms); |
| void InitializeExperiment(); |
| |
| bool in_experiment_; |
| double k_up_; |
| double k_down_; |
| double overusing_time_threshold_; |
| // Must be first member variable. Cannot be const because we need to be |
| // copyable. |
| webrtc::OverUseDetectorOptions options_; |
| double threshold_; |
| int64_t last_update_ms_; |
| double prev_offset_; |
| double time_over_using_; |
| int overuse_counter_; |
| BandwidthUsage hypothesis_; |
| |
| RTC_DISALLOW_COPY_AND_ASSIGN(OveruseDetector); |
| }; |
| } // namespace webrtc |
| |
| #endif // WEBRTC_MODULES_REMOTE_BITRATE_ESTIMATOR_OVERUSE_DETECTOR_H_ |