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/*
* Copyright 2019 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 "video/quality_limitation_reason_tracker.h"
#include <utility>
#include "rtc_base/checks.h"
namespace webrtc {
QualityLimitationReasonTracker::QualityLimitationReasonTracker(Clock* clock)
: clock_(clock),
current_reason_(QualityLimitationReason::kNone),
current_reason_updated_timestamp_ms_(clock_->TimeInMilliseconds()),
durations_ms_({std::make_pair(QualityLimitationReason::kNone, 0),
std::make_pair(QualityLimitationReason::kCpu, 0),
std::make_pair(QualityLimitationReason::kBandwidth, 0),
std::make_pair(QualityLimitationReason::kOther, 0)}) {}
QualityLimitationReason QualityLimitationReasonTracker::current_reason() const {
return current_reason_;
}
void QualityLimitationReasonTracker::SetReason(QualityLimitationReason reason) {
if (reason == current_reason_)
return;
int64_t now_ms = clock_->TimeInMilliseconds();
durations_ms_[current_reason_] +=
now_ms - current_reason_updated_timestamp_ms_;
current_reason_ = reason;
current_reason_updated_timestamp_ms_ = now_ms;
}
std::map<QualityLimitationReason, int64_t>
QualityLimitationReasonTracker::DurationsMs() const {
std::map<QualityLimitationReason, int64_t> total_durations_ms = durations_ms_;
auto it = total_durations_ms.find(current_reason_);
RTC_DCHECK(it != total_durations_ms.end());
it->second +=
clock_->TimeInMilliseconds() - current_reason_updated_timestamp_ms_;
return total_durations_ms;
}
} // namespace webrtc
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