blob: 9f2f438ad990d5a9632b103ff9cc6668f59e00a5 [file] [log] [blame]
* Copyright (c) 2016 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 <limits>
#include <map>
#include "absl/types/optional.h"
#include "api/transport/network_types.h"
#include "api/units/data_rate.h"
namespace webrtc {
class RtcEventLog;
class ProbeBitrateEstimator {
explicit ProbeBitrateEstimator(RtcEventLog* event_log);
// Should be called for every probe packet we receive feedback about.
// Returns the estimated bitrate if the probe completes a valid cluster.
absl::optional<DataRate> HandleProbeAndEstimateBitrate(
const PacketResult& packet_feedback);
absl::optional<DataRate> FetchAndResetLastEstimatedBitrate();
struct AggregatedCluster {
int num_probes = 0;
Timestamp first_send = Timestamp::PlusInfinity();
Timestamp last_send = Timestamp::MinusInfinity();
Timestamp first_receive = Timestamp::PlusInfinity();
Timestamp last_receive = Timestamp::MinusInfinity();
DataSize size_last_send = DataSize::Zero();
DataSize size_first_receive = DataSize::Zero();
DataSize size_total = DataSize::Zero();
// Erases old cluster data that was seen before |timestamp|.
void EraseOldClusters(Timestamp timestamp);
std::map<int, AggregatedCluster> clusters_;
RtcEventLog* const event_log_;
absl::optional<DataRate> estimated_data_rate_;
} // namespace webrtc