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This CL implements the logic behind qualityLimitationReason[1] and qualityLimitationDurations[2] This CL also exposes qualityLimitationReason in the standard getStats() API, but does not expose qualityLimitationDurations because that is blocked on supporting the "record<>" type in RTCStatsMember[3]. [1] https://w3c.github.io/webrtc-stats/#dom-rtcoutboundrtpstreamstats-qualitylimitationreason [2] https://w3c.github.io/webrtc-stats/#dom-rtcoutboundrtpstreamstats-qualitylimitationdurations [3] https://crbug.com/webrtc/10685 TBR=stefan@webrtc.org Bug: webrtc:10451, webrtc:10686 Change-Id: Ifff0be4ddd64eaec23d59c02af99fdbb1feb3841 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/138825 Commit-Queue: Henrik Boström <hbos@webrtc.org> Reviewed-by: Åsa Persson <asapersson@webrtc.org> Reviewed-by: Harald Alvestrand <hta@webrtc.org> Cr-Commit-Position: refs/heads/master@{#28090}
52 lines
1.9 KiB
C++
52 lines
1.9 KiB
C++
/*
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* Copyright 2019 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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#include "video/quality_limitation_reason_tracker.h"
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#include <utility>
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#include "rtc_base/checks.h"
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namespace webrtc {
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QualityLimitationReasonTracker::QualityLimitationReasonTracker(Clock* clock)
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: clock_(clock),
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current_reason_(QualityLimitationReason::kNone),
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current_reason_updated_timestamp_ms_(clock_->TimeInMilliseconds()),
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durations_ms_({std::make_pair(QualityLimitationReason::kNone, 0),
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std::make_pair(QualityLimitationReason::kCpu, 0),
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std::make_pair(QualityLimitationReason::kBandwidth, 0),
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std::make_pair(QualityLimitationReason::kOther, 0)}) {}
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QualityLimitationReason QualityLimitationReasonTracker::current_reason() const {
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return current_reason_;
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}
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void QualityLimitationReasonTracker::SetReason(QualityLimitationReason reason) {
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if (reason == current_reason_)
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return;
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int64_t now_ms = clock_->TimeInMilliseconds();
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durations_ms_[current_reason_] +=
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now_ms - current_reason_updated_timestamp_ms_;
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current_reason_ = reason;
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current_reason_updated_timestamp_ms_ = now_ms;
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}
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std::map<QualityLimitationReason, int64_t>
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QualityLimitationReasonTracker::DurationsMs() const {
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std::map<QualityLimitationReason, int64_t> total_durations_ms = durations_ms_;
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auto it = total_durations_ms.find(current_reason_);
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RTC_DCHECK(it != total_durations_ms.end());
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it->second +=
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clock_->TimeInMilliseconds() - current_reason_updated_timestamp_ms_;
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return total_durations_ms;
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}
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} // namespace webrtc
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