14b43beb7c
TBR=niklas.enbom@webrtc.org Review URL: https://webrtc-codereview.appspot.com/915006 git-svn-id: http://webrtc.googlecode.com/svn/trunk@2963 4adac7df-926f-26a2-2b94-8c16560cd09d
108 lines
3.2 KiB
C++
108 lines
3.2 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_RTP_RTCP_SOURCE_OVERUSE_DETECTOR_H_
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#define WEBRTC_MODULES_RTP_RTCP_SOURCE_OVERUSE_DETECTOR_H_
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#include <list>
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#include "modules/interface/module_common_types.h"
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#include "modules/remote_bitrate_estimator/include/bwe_defines.h"
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#include "typedefs.h" // NOLINT(build/include)
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#ifdef WEBRTC_BWE_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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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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void Update(uint16_t packet_size,
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int64_t timestamp_ms,
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uint32_t rtp_timestamp,
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int64_t now_ms);
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BandwidthUsage State() const;
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double NoiseVar() const;
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void SetRateControlRegion(RateControlRegion region);
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private:
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struct FrameSample {
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FrameSample()
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: size(0),
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complete_time_ms(-1),
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timestamp(-1),
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timestamp_ms(-1) {}
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uint32_t size;
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int64_t complete_time_ms;
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int64_t timestamp;
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int64_t timestamp_ms;
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};
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struct DebugPlots {
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#ifdef WEBRTC_BWE_MATLAB
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DebugPlots() : plot1(NULL), plot2(NULL), plot3(NULL), plot4(NULL) {}
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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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static bool OldTimestamp(uint32_t new_timestamp,
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uint32_t existing_timestamp,
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bool* wrapped);
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// Prepares the overuse detector to start using timestamps in milliseconds
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// instead of 90 kHz timestamps.
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void SwitchTimeBase();
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bool TimeDeltas(const FrameSample& current_frame,
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const FrameSample& prev_frame,
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int64_t* t_delta,
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double* ts_delta);
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void UpdateKalman(int64_t t_delta,
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double ts_elta,
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uint32_t frame_size,
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uint32_t prev_frame_size);
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double UpdateMinFramePeriod(double ts_delta);
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void UpdateNoiseEstimate(double residual, double ts_delta, bool stable_state);
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BandwidthUsage Detect(double ts_delta);
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double CurrentDrift();
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OverUseDetectorOptions options_; // Must be first member
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// variable. Cannot be const
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// because we need to be copyable.
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FrameSample current_frame_;
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FrameSample prev_frame_;
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uint16_t num_of_deltas_;
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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 process_noise_[2];
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double avg_noise_;
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double var_noise_;
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double threshold_;
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std::list<double> ts_delta_hist_;
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double prev_offset_;
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double time_over_using_;
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uint16_t over_use_counter_;
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BandwidthUsage hypothesis_;
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#ifdef WEBRTC_BWE_MATLAB
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DebugPlots plots_;
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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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