77 lines
2.6 KiB
C
77 lines
2.6 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_REMOTE_RATE_CONTROL_H_
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#define WEBRTC_MODULES_RTP_RTCP_SOURCE_REMOTE_RATE_CONTROL_H_
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#include "bwe_defines.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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#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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class RemoteRateControl
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{
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public:
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RemoteRateControl();
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~RemoteRateControl();
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WebRtc_Word32 SetConfiguredBitRates(WebRtc_UWord32 minBitRate, WebRtc_UWord32 maxBitRate);
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WebRtc_UWord32 TargetBitRate(WebRtc_UWord32 RTT);
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RateControlRegion Update(const RateControlInput& input, bool& firstOverUse);
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void Reset();
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private:
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WebRtc_UWord32 ChangeBitRate(WebRtc_UWord32 currentBitRate,
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WebRtc_UWord32 incomingBitRate, double delayFactor, WebRtc_UWord32 RTT);
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double RateIncreaseFactor(WebRtc_Word64 nowMs, WebRtc_Word64 lastMs, WebRtc_UWord32 reactionTimeMs, double noiseVar) const;
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void UpdateChangePeriod(WebRtc_Word64 nowMs);
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void UpdateMaxBitRateEstimate(float incomingBitRateKbps);
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void ChangeState(const RateControlInput& input, WebRtc_Word64 nowMs);
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void ChangeState(RateControlState newState);
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void ChangeRegion(RateControlRegion region);
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#ifdef _DEBUG
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static void StateStr(RateControlState state, char* str);
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static void StateStr(BandwidthUsage state, char* str);
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#endif
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WebRtc_UWord32 _minConfiguredBitRate;
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WebRtc_UWord32 _maxConfiguredBitRate;
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WebRtc_UWord32 _currentBitRate;
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WebRtc_UWord32 _maxHoldRate;
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float _avgMaxBitRate;
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float _varMaxBitRate;
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RateControlState _rcState;
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RateControlState _cameFromState;
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RateControlRegion _rcRegion;
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WebRtc_Word64 _lastBitRateChange;
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RateControlInput _currentInput;
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bool _updated;
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WebRtc_Word64 _timeFirstIncomingEstimate;
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bool _initializedBitRate;
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float _avgChangePeriod;
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WebRtc_Word64 _lastChangeMs;
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float _beta;
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#ifdef DEBUG_DELAY_SAMPLES
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FILE* _delayFile;
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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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#endif
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};
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} // namespace webrtc
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#endif // WEBRTC_MODULES_RTP_RTCP_SOURCE_REMOTE_RATE_CONTROL_H_
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