chromium/third_party/webrtc/modules/rtp_rtcp/source/capture_clock_offset_updater.h

/*
 *  Copyright (c) 2021 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.
 */

#ifndef MODULES_RTP_RTCP_SOURCE_CAPTURE_CLOCK_OFFSET_UPDATER_H_
#define MODULES_RTP_RTCP_SOURCE_CAPTURE_CLOCK_OFFSET_UPDATER_H_

#include <stdint.h>

#include "absl/types/optional.h"
#include "api/units/time_delta.h"

namespace webrtc {

//
// Helper class for calculating the clock offset against the capturer's clock.
//
// This is achieved by adjusting the estimated capture clock offset in received
// Absolute Capture Time RTP header extension (see
// https://webrtc.org/experiments/rtp-hdrext/abs-capture-time/), which
// represents the clock offset between a remote sender and the capturer, by
// adding local-to-remote clock offset.

class CaptureClockOffsetUpdater { … };

}  // namespace webrtc

#endif  // MODULES_RTP_RTCP_SOURCE_CAPTURE_CLOCK_OFFSET_UPDATER_H_