chromium/third_party/webrtc/modules/remote_bitrate_estimator/transport_sequence_number_feedback_generator.cc

/*
 *  Copyright (c) 2015 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 "modules/remote_bitrate_estimator/transport_sequence_number_feedback_generator.h"

#include <algorithm>
#include <cstdint>
#include <limits>
#include <memory>
#include <utility>

#include "absl/types/optional.h"
#include "api/units/data_size.h"
#include "api/units/time_delta.h"
#include "modules/rtp_rtcp/source/rtcp_packet/remote_estimate.h"
#include "modules/rtp_rtcp/source/rtcp_packet/transport_feedback.h"
#include "modules/rtp_rtcp/source/rtp_header_extensions.h"
#include "rtc_base/checks.h"
#include "rtc_base/logging.h"
#include "rtc_base/numerics/safe_minmax.h"
#include "system_wrappers/include/clock.h"

namespace webrtc {
namespace {

constexpr TimeDelta kBackWindow = …;
constexpr TimeDelta kMinInterval = …;
constexpr TimeDelta kMaxInterval = …;
constexpr TimeDelta kDefaultInterval = …;

TimeDelta GetAbsoluteSendTimeDelta(uint32_t new_sendtime,
                                   uint32_t previous_sendtime) { … }
}  // namespace

TransportSequenceNumberFeedbackGenenerator::
    TransportSequenceNumberFeedbackGenenerator(
        RtcpSender feedback_sender,
        NetworkStateEstimator* network_state_estimator)
    : … { … }

TransportSequenceNumberFeedbackGenenerator::
    ~TransportSequenceNumberFeedbackGenenerator() { … }

void TransportSequenceNumberFeedbackGenenerator::MaybeCullOldPackets(
    int64_t sequence_number,
    Timestamp arrival_time) { … }

void TransportSequenceNumberFeedbackGenenerator::OnReceivedPacket(
    const RtpPacketReceived& packet) { … }

TimeDelta TransportSequenceNumberFeedbackGenenerator::Process(Timestamp now) { … }

void TransportSequenceNumberFeedbackGenenerator::OnSendBandwidthEstimateChanged(
    DataRate estimate) { … }

void TransportSequenceNumberFeedbackGenenerator::SetTransportOverhead(
    DataSize overhead_per_packet) { … }

void TransportSequenceNumberFeedbackGenenerator::SendPeriodicFeedbacks() { … }

void TransportSequenceNumberFeedbackGenenerator::SendFeedbackOnRequest(
    int64_t sequence_number,
    const FeedbackRequest& feedback_request) { … }

std::unique_ptr<rtcp::TransportFeedback>
TransportSequenceNumberFeedbackGenenerator::MaybeBuildFeedbackPacket(
    bool include_timestamps,
    int64_t begin_sequence_number_inclusive,
    int64_t end_sequence_number_exclusive,
    bool is_periodic_update) { … }

}  // namespace webrtc