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59 lines
2.1 KiB
C++
59 lines
2.1 KiB
C++
/*
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* Copyright (c) 2012 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 WEBRTC_MODULES_REMOTE_BITRATE_ESTIMATOR_OVERUSE_DETECTOR_H_
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#define WEBRTC_MODULES_REMOTE_BITRATE_ESTIMATOR_OVERUSE_DETECTOR_H_
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#include <list>
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#include "webrtc/base/constructormagic.h"
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#include "webrtc/modules/interface/module_common_types.h"
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#include "webrtc/modules/remote_bitrate_estimator/include/bwe_defines.h"
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#include "webrtc/typedefs.h"
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namespace webrtc {
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enum RateControlRegion;
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class OveruseDetector {
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public:
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explicit OveruseDetector(const OverUseDetectorOptions& options);
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~OveruseDetector();
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// Update the detection state based on the estimated inter-arrival time delta
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// offset. |timestamp_delta| is the delta between the last timestamp which the
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// estimated offset is based on and the last timestamp on which the last
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// offset was based on, representing the time between detector updates.
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// |num_of_deltas| is the number of deltas the offset estimate is based on.
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// Returns the state after the detection update.
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BandwidthUsage Detect(double offset, double timestamp_delta,
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int num_of_deltas);
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// Returns the current detector state.
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BandwidthUsage State() const;
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// Sets the current rate-control region as decided by RemoteRateControl. This
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// affects the sensitivity of the detector.
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void SetRateControlRegion(webrtc::RateControlRegion region);
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private:
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// Must be first member variable. Cannot be const because we need to be
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// copyable.
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webrtc::OverUseDetectorOptions options_;
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double threshold_;
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double prev_offset_;
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double time_over_using_;
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int overuse_counter_;
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BandwidthUsage hypothesis_;
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DISALLOW_COPY_AND_ASSIGN(OveruseDetector);
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};
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} // namespace webrtc
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#endif // WEBRTC_MODULES_REMOTE_BITRATE_ESTIMATOR_OVERUSE_DETECTOR_H_
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