bf8a2c94ce
Since the interval between the timestamps does not include the send/receive time of the last/first packet we correct the interval by adding the average of the interval between probing packets. BUG=webrtc:5859 R=mflodman@webrtc.org, stefan@webrtc.org Review URL: https://codereview.webrtc.org/2224173003 . Cr-Commit-Position: refs/heads/master@{#13719}
58 lines
1.6 KiB
C++
58 lines
1.6 KiB
C++
/*
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* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef WEBRTC_MODULES_CONGESTION_CONTROLLER_PROBE_BITRATE_ESTIMATOR_H_
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#define WEBRTC_MODULES_CONGESTION_CONTROLLER_PROBE_BITRATE_ESTIMATOR_H_
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#include <map>
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#include <limits>
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#include "webrtc/modules/rtp_rtcp/include/rtp_rtcp_defines.h"
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namespace webrtc {
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struct ProbingResult {
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static constexpr int kNoEstimate = -1;
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ProbingResult();
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ProbingResult(int bps, int64_t timestamp);
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bool valid() const;
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int bps;
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int64_t timestamp;
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};
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class ProbeBitrateEstimator {
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public:
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ProbeBitrateEstimator();
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// Should be called for every packet we receive feedback about. If the
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// packet was used for probing it will validate/calculate the resulting
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// bitrate and return the result.
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ProbingResult PacketFeedback(const PacketInfo& packet_info);
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private:
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struct AggregatedCluster {
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int num_probes = 0;
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int64_t first_send_ms = std::numeric_limits<int64_t>::max();
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int64_t last_send_ms = 0;
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int64_t first_receive_ms = std::numeric_limits<int64_t>::max();
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int64_t last_receive_ms = 0;
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size_t size = 0;
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};
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std::map<int, AggregatedCluster> clusters_;
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int last_valid_cluster_id_;
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};
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} // namespace webrtc
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#endif // WEBRTC_MODULES_CONGESTION_CONTROLLER_PROBE_BITRATE_ESTIMATOR_H_
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