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fbe667298a
it was added year ago in https://webrtc-review.googlesource.com/c/src/+/213425 Bug: webrtc:11327 Change-Id: I95a0cf261a5a755dbdadd5e1e71ce031be4a195b Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/261950 Reviewed-by: Tomas Gunnarsson <tommi@webrtc.org> Commit-Queue: Danil Chapovalov <danilchap@webrtc.org> Cr-Commit-Position: refs/heads/main@{#36872}
50 lines
1.4 KiB
C++
50 lines
1.4 KiB
C++
/*
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* Copyright (c) 2016 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 TEST_DRIFTING_CLOCK_H_
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#define TEST_DRIFTING_CLOCK_H_
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#include <stdint.h>
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#include "system_wrappers/include/clock.h"
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#include "system_wrappers/include/ntp_time.h"
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namespace webrtc {
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namespace test {
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class DriftingClock : public Clock {
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public:
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static constexpr float kNoDrift = 1.0f;
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DriftingClock(Clock* clock, float speed);
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static constexpr float PercentsFaster(float percent) {
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return 1.0f + percent / 100.0f;
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}
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static constexpr float PercentsSlower(float percent) {
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return 1.0f - percent / 100.0f;
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}
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Timestamp CurrentTime() override { return Drift(clock_->CurrentTime()); }
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NtpTime ConvertTimestampToNtpTime(Timestamp timestamp) override {
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return Drift(clock_->ConvertTimestampToNtpTime(timestamp));
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}
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private:
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TimeDelta Drift() const;
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Timestamp Drift(Timestamp timestamp) const;
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NtpTime Drift(NtpTime ntp_time) const;
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Clock* const clock_;
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const float drift_;
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const Timestamp start_time_;
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};
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} // namespace test
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} // namespace webrtc
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#endif // TEST_DRIFTING_CLOCK_H_
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