439be29445
BUG= TEST= Review URL: https://webrtc-codereview.appspot.com/391012 git-svn-id: http://webrtc.googlecode.com/svn/trunk@1704 4adac7df-926f-26a2-2b94-8c16560cd09d
83 lines
3.0 KiB
C++
83 lines
3.0 KiB
C++
/*
|
|
* 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_RTP_RTCP_SOURCE_REMOTE_RATE_CONTROL_H_
|
|
#define WEBRTC_MODULES_RTP_RTCP_SOURCE_REMOTE_RATE_CONTROL_H_
|
|
|
|
#include "bwe_defines.h"
|
|
#include "typedefs.h"
|
|
|
|
#ifdef MATLAB
|
|
#include "../test/BWEStandAlone/MatlabPlot.h"
|
|
#endif
|
|
|
|
namespace webrtc {
|
|
class RemoteRateControl
|
|
{
|
|
public:
|
|
RemoteRateControl();
|
|
~RemoteRateControl();
|
|
WebRtc_Word32 SetConfiguredBitRates(WebRtc_UWord32 minBitRate,
|
|
WebRtc_UWord32 maxBitRate);
|
|
WebRtc_UWord32 LatestEstimate() const;
|
|
WebRtc_UWord32 UpdateBandwidthEstimate(WebRtc_UWord32 RTT,
|
|
WebRtc_Word64 nowMS);
|
|
RateControlRegion Update(const RateControlInput& input, bool& firstOverUse,
|
|
WebRtc_Word64 nowMS);
|
|
void Reset();
|
|
|
|
// Returns true if there is a valid estimate of the incoming bitrate, false
|
|
// otherwise.
|
|
bool ValidEstimate() const;
|
|
|
|
private:
|
|
WebRtc_UWord32 ChangeBitRate(WebRtc_UWord32 currentBitRate,
|
|
WebRtc_UWord32 incomingBitRate,
|
|
double delayFactor, WebRtc_UWord32 RTT,
|
|
WebRtc_Word64 nowMS);
|
|
double RateIncreaseFactor(WebRtc_Word64 nowMs,
|
|
WebRtc_Word64 lastMs,
|
|
WebRtc_UWord32 reactionTimeMs,
|
|
double noiseVar) const;
|
|
void UpdateChangePeriod(WebRtc_Word64 nowMs);
|
|
void UpdateMaxBitRateEstimate(float incomingBitRateKbps);
|
|
void ChangeState(const RateControlInput& input, WebRtc_Word64 nowMs);
|
|
void ChangeState(RateControlState newState);
|
|
void ChangeRegion(RateControlRegion region);
|
|
static void StateStr(RateControlState state, char* str);
|
|
static void StateStr(BandwidthUsage state, char* str);
|
|
|
|
WebRtc_UWord32 _minConfiguredBitRate;
|
|
WebRtc_UWord32 _maxConfiguredBitRate;
|
|
WebRtc_UWord32 _currentBitRate;
|
|
WebRtc_UWord32 _maxHoldRate;
|
|
float _avgMaxBitRate;
|
|
float _varMaxBitRate;
|
|
RateControlState _rcState;
|
|
RateControlState _cameFromState;
|
|
RateControlRegion _rcRegion;
|
|
WebRtc_Word64 _lastBitRateChange;
|
|
RateControlInput _currentInput;
|
|
bool _updated;
|
|
WebRtc_Word64 _timeFirstIncomingEstimate;
|
|
bool _initializedBitRate;
|
|
|
|
float _avgChangePeriod;
|
|
WebRtc_Word64 _lastChangeMs;
|
|
float _beta;
|
|
#ifdef MATLAB
|
|
MatlabPlot *_plot1;
|
|
MatlabPlot *_plot2;
|
|
#endif
|
|
};
|
|
} // namespace webrtc
|
|
|
|
#endif // WEBRTC_MODULES_RTP_RTCP_SOURCE_REMOTE_RATE_CONTROL_H_
|