blob: 901d8d4627b0d1e38676cb574f2db96c2315b544 [file] [log] [blame]
* Copyright (c) 2011 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.
#include "typedefs.h"
#include "rw_lock_wrapper.h"
namespace webrtc
class TickTimeBase;
class VCMTimestampExtrapolator
VCMTimestampExtrapolator(TickTimeBase* clock,
WebRtc_Word32 vcmId = 0,
WebRtc_Word32 receiverId = 0);
void Update(WebRtc_Word64 tMs, WebRtc_UWord32 ts90khz, bool trace = true);
WebRtc_UWord32 ExtrapolateTimestamp(WebRtc_Word64 tMs) const;
WebRtc_Word64 ExtrapolateLocalTime(WebRtc_UWord32 timestamp90khz) const;
void Reset(WebRtc_Word64 nowMs = -1);
void CheckForWrapArounds(WebRtc_UWord32 ts90khz);
bool DelayChangeDetection(double error, bool trace = true);
RWLockWrapper* _rwLock;
WebRtc_Word32 _vcmId;
WebRtc_Word32 _id;
TickTimeBase* _clock;
double _w[2];
double _P[2][2];
WebRtc_Word64 _startMs;
WebRtc_Word64 _prevMs;
WebRtc_UWord32 _firstTimestamp;
WebRtc_Word32 _wrapArounds;
WebRtc_UWord32 _prevTs90khz;
const double _lambda;
bool _firstAfterReset;
WebRtc_UWord32 _packetCount;
const WebRtc_UWord32 _startUpFilterDelayInPackets;
double _detectorAccumulatorPos;
double _detectorAccumulatorNeg;
const double _alarmThreshold;
const double _accDrift;
const double _accMaxError;
const double _P11;
} // namespace webrtc