[feat] use original webrtc header defines

src/qos/acknowledged_bitrate_estimator.cc

@@ -0,0 +1,61 @@
+/*
+ *  Copyright (c) 2017 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 "acknowledged_bitrate_estimator.h"
+
+#include <algorithm>
+#include <memory>
+#include <optional>
+#include <utility>
+#include <vector>
+
+#include "api/units/data_rate.h"
+#include "api/units/data_size.h"
+#include "api/units/timestamp.h"
+#include "network_types.h"
+
+namespace webrtc {
+
+AcknowledgedBitrateEstimator::AcknowledgedBitrateEstimator()
+    : AcknowledgedBitrateEstimator(std::make_unique<BitrateEstimator>()) {}
+
+AcknowledgedBitrateEstimator::AcknowledgedBitrateEstimator(
+    std::unique_ptr<BitrateEstimator> bitrate_estimator)
+    : in_alr_(false), bitrate_estimator_(std::move(bitrate_estimator)) {}
+
+void AcknowledgedBitrateEstimator::IncomingPacketFeedbackVector(
+    const std::vector<PacketResult>& packet_feedback_vector) {
+  for (const auto& packet : packet_feedback_vector) {
+    if (alr_ended_time_ && packet.sent_packet.send_time > *alr_ended_time_) {
+      bitrate_estimator_->ExpectFastRateChange();
+      alr_ended_time_.reset();
+    }
+    DataSize acknowledged_estimate = packet.sent_packet.size;
+    acknowledged_estimate += packet.sent_packet.prior_unacked_data;
+    bitrate_estimator_->Update(packet.receive_time, acknowledged_estimate,
+                               in_alr_);
+  }
+}
+
+std::optional<DataRate> AcknowledgedBitrateEstimator::bitrate() const {
+  return bitrate_estimator_->bitrate();
+}
+
+std::optional<DataRate> AcknowledgedBitrateEstimator::PeekRate() const {
+  return bitrate_estimator_->PeekRate();
+}
+
+void AcknowledgedBitrateEstimator::SetAlrEndedTime(Timestamp alr_ended_time) {
+  alr_ended_time_.emplace(alr_ended_time);
+}
+
+void AcknowledgedBitrateEstimator::SetAlr(bool in_alr) { in_alr_ = in_alr; }
+
+}  // namespace webrtc