webrtc/modules/congestion_controller/goog_cc/probe_bitrate_estimator.h
Per Kjellander eec39190ce Remove trial WebRTC-Bwe-ProbeRateFallback
It was intended to be used for to fall back to probe rate if ack rate is missing.

This partly reverts commit aa4f100225.

Reason for revert:
Code is unused 1 year after submitted.

Original change's description:
> Adds trial to fall back to probe rate if ack rate is missing.
>
> Bug: webrtc:9718
> Change-Id: I7b6e1d3c051e67b97f6de1ec95e84631af9c5b0d
> Reviewed-on: https://webrtc-review.googlesource.com/c/113600
> Commit-Queue: Sebastian Jansson <srte@webrtc.org>
> Reviewed-by: Niels Moller <nisse@webrtc.org>
> Cr-Commit-Position: refs/heads/master@{#25953}

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: webrtc:9718
Change-Id: I06804782c2e210d1c484426e915e4d8447572739
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/158084
Commit-Queue: Per Kjellander <perkj@webrtc.org>
Reviewed-by: Sebastian Jansson <srte@webrtc.org>
Reviewed-by: Per Kjellander <perkj@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#29597}
2019-10-24 08:30:42 +00:00

58 lines
1.9 KiB
C++

/*
* 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.
*/
#ifndef MODULES_CONGESTION_CONTROLLER_GOOG_CC_PROBE_BITRATE_ESTIMATOR_H_
#define MODULES_CONGESTION_CONTROLLER_GOOG_CC_PROBE_BITRATE_ESTIMATOR_H_
#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 {
public:
explicit ProbeBitrateEstimator(RtcEventLog* event_log);
~ProbeBitrateEstimator();
// 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();
private:
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
#endif // MODULES_CONGESTION_CONTROLLER_GOOG_CC_PROBE_BITRATE_ESTIMATOR_H_