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92ea95e34a
In https://webrtc-review.googlesource.com/c/src/+/1560 we moved WebRTC from src/webrtc to src/ (in order to preserve an healthy git history). This CL takes care of fixing header guards, #include paths, etc... NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true TBR=tommi@webrtc.org Bug: chromium:611808 Change-Id: Iea91618212bee0af16aa3f05071eab8f93706578 Reviewed-on: https://webrtc-review.googlesource.com/1561 Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Reviewed-by: Henrik Kjellander <kjellander@webrtc.org> Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org> Cr-Commit-Position: refs/heads/master@{#19846}
53 lines
1.8 KiB
C++
53 lines
1.8 KiB
C++
/*
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* Copyright (c) 2014 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 MODULES_RTP_RTCP_INCLUDE_REMOTE_NTP_TIME_ESTIMATOR_H_
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#define MODULES_RTP_RTCP_INCLUDE_REMOTE_NTP_TIME_ESTIMATOR_H_
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#include <memory>
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#include "rtc_base/constructormagic.h"
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#include "system_wrappers/include/rtp_to_ntp_estimator.h"
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namespace webrtc {
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class Clock;
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class TimestampExtrapolator;
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// RemoteNtpTimeEstimator can be used to estimate a given RTP timestamp's NTP
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// time in local timebase.
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// Note that it needs to be trained with at least 2 RTCP SR (by calling
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// |UpdateRtcpTimestamp|) before it can be used.
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class RemoteNtpTimeEstimator {
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public:
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explicit RemoteNtpTimeEstimator(Clock* clock);
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~RemoteNtpTimeEstimator();
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// Updates the estimator with round trip time |rtt|, NTP seconds |ntp_secs|,
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// NTP fraction |ntp_frac| and RTP timestamp |rtcp_timestamp|.
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bool UpdateRtcpTimestamp(int64_t rtt, uint32_t ntp_secs, uint32_t ntp_frac,
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uint32_t rtp_timestamp);
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// Estimates the NTP timestamp in local timebase from |rtp_timestamp|.
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// Returns the NTP timestamp in ms when success. -1 if failed.
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int64_t Estimate(uint32_t rtp_timestamp);
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private:
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Clock* clock_;
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std::unique_ptr<TimestampExtrapolator> ts_extrapolator_;
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RtpToNtpEstimator rtp_to_ntp_;
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int64_t last_timing_log_ms_;
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RTC_DISALLOW_COPY_AND_ASSIGN(RemoteNtpTimeEstimator);
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};
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} // namespace webrtc
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#endif // MODULES_RTP_RTCP_INCLUDE_REMOTE_NTP_TIME_ESTIMATOR_H_
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