92 lines
2.8 KiB
C
92 lines
2.8 KiB
C
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/*
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* Copyright (c) 2011 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_RTP_RTCP_SOURCE_OVERUSE_DETECTOR_H_
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#define WEBRTC_MODULES_RTP_RTCP_SOURCE_OVERUSE_DETECTOR_H_
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#include "bwe_defines.h"
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#include "module_common_types.h"
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#include "typedefs.h"
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#include "list_wrapper.h"
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#include <stdio.h>
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#define DEBUG_FILE
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#ifdef MATLAB
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#include "../test/BWEStandAlone/MatlabPlot.h"
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#endif
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namespace webrtc {
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enum RateControlRegion;
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struct FrameSample
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{
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FrameSample() : _size(0), _completeTimeMs(-1), _timestamp(-1) {}
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WebRtc_UWord32 _size;
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WebRtc_Word64 _completeTimeMs;
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WebRtc_Word64 _timestamp;
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};
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class OverUseDetector
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{
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public:
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OverUseDetector();
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~OverUseDetector();
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bool Update(const WebRtcRTPHeader& rtpHeader, const WebRtc_UWord16 packetSize);
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BandwidthUsage State() const;
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void Reset();
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double NoiseVar() const;
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void SetRateControlRegion(RateControlRegion region);
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private:
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static bool OldTimestamp(WebRtc_UWord32 newTimestamp, WebRtc_UWord32 existingTimestamp, bool& wrapped);
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void CompensatedTimeDelta(const FrameSample& currentFrame, const FrameSample& prevFrame, WebRtc_Word64& tDelta,
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double& tsDelta, bool wrapped);
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void UpdateKalman(WebRtc_Word64 tDelta, double tsDelta, WebRtc_UWord32 frameSize, WebRtc_UWord32 prevFrameSize);
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double UpdateMinFramePeriod(double tsDelta);
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void UpdateNoiseEstimate(double residual, double tsDelta, bool stableState);
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BandwidthUsage Detect(double tsDelta);
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double CurrentDrift();
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bool _firstPacket;
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FrameSample _currentFrame;
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FrameSample _prevFrame;
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WebRtc_UWord16 _numOfDeltas;
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double _slope;
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double _offset;
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double _E[2][2];
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double _processNoise[2];
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double _avgNoise;
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double _varNoise;
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double _varFsDelta;
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double _threshold;
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ListWrapper _tsDeltaHist;
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double _prevOffset;
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double _timeOverUsing;
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WebRtc_UWord16 _overUseCounter;
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BandwidthUsage _hypothesis;
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#ifdef DEBUG_FILE
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FILE* _debugFile;
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#endif
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#ifdef MATLAB
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MatlabPlot *_plot1;
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MatlabPlot *_plot2;
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MatlabPlot *_plot3;
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MatlabPlot *_plot4;
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#endif
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};
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} // namespace webrtc
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#endif // WEBRTC_MODULES_RTP_RTCP_SOURCE_OVERUSE_DETECTOR_H_
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