Repo created

TMessagesProj/jni/voip/webrtc/video/quality_limitation_reason_tracker.cc

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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