34 lines
1.1 KiB
C++
34 lines
1.1 KiB
C++
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/*
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* Copyright (c) 2021 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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#include "modules/rtp_rtcp/source/capture_clock_offset_updater.h"
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namespace webrtc {
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absl::optional<int64_t>
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CaptureClockOffsetUpdater::AdjustEstimatedCaptureClockOffset(
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absl::optional<int64_t> remote_capture_clock_offset) const {
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if (remote_capture_clock_offset == absl::nullopt ||
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remote_to_local_clock_offset_ == absl::nullopt) {
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return absl::nullopt;
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}
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// Do calculations as "unsigned" to make overflows deterministic.
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return static_cast<uint64_t>(*remote_capture_clock_offset) +
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static_cast<uint64_t>(*remote_to_local_clock_offset_);
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}
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void CaptureClockOffsetUpdater::SetRemoteToLocalClockOffset(
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absl::optional<int64_t> offset_q32x32) {
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remote_to_local_clock_offset_ = offset_q32x32;
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}
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} // namespace webrtc
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