Repo created

TMessagesProj/jni/voip/webrtc/video/adaptation/quality_scaler_resource.cc

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+/*
+ *  Copyright 2020 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/adaptation/quality_scaler_resource.h"
+
+#include <utility>
+
+#include "api/field_trials_view.h"
+#include "rtc_base/checks.h"
+#include "rtc_base/experiments/balanced_degradation_settings.h"
+#include "rtc_base/time_utils.h"
+
+namespace webrtc {
+
+// static
+rtc::scoped_refptr<QualityScalerResource> QualityScalerResource::Create() {
+  return rtc::make_ref_counted<QualityScalerResource>();
+}
+
+QualityScalerResource::QualityScalerResource()
+    : VideoStreamEncoderResource("QualityScalerResource"),
+      quality_scaler_(nullptr) {}
+
+QualityScalerResource::~QualityScalerResource() {
+  RTC_DCHECK(!quality_scaler_);
+}
+
+bool QualityScalerResource::is_started() const {
+  RTC_DCHECK_RUN_ON(encoder_queue());
+  return quality_scaler_.get();
+}
+
+void QualityScalerResource::StartCheckForOveruse(
+    VideoEncoder::QpThresholds qp_thresholds,
+    const FieldTrialsView& field_trials) {
+  RTC_DCHECK_RUN_ON(encoder_queue());
+  RTC_DCHECK(!is_started());
+  quality_scaler_ = std::make_unique<QualityScaler>(
+      this, std::move(qp_thresholds), field_trials);
+}
+
+void QualityScalerResource::StopCheckForOveruse() {
+  RTC_DCHECK_RUN_ON(encoder_queue());
+  RTC_DCHECK(is_started());
+  // Ensure we have no pending callbacks. This makes it safe to destroy the
+  // QualityScaler and even task queues with tasks in-flight.
+  quality_scaler_.reset();
+}
+
+void QualityScalerResource::SetQpThresholds(
+    VideoEncoder::QpThresholds qp_thresholds) {
+  RTC_DCHECK_RUN_ON(encoder_queue());
+  RTC_DCHECK(is_started());
+  quality_scaler_->SetQpThresholds(std::move(qp_thresholds));
+}
+
+bool QualityScalerResource::QpFastFilterLow() {
+  RTC_DCHECK_RUN_ON(encoder_queue());
+  RTC_DCHECK(is_started());
+  return quality_scaler_->QpFastFilterLow();
+}
+
+void QualityScalerResource::OnEncodeCompleted(const EncodedImage& encoded_image,
+                                              int64_t time_sent_in_us) {
+  RTC_DCHECK_RUN_ON(encoder_queue());
+  if (quality_scaler_ && encoded_image.qp_ >= 0) {
+    quality_scaler_->ReportQp(encoded_image.qp_, time_sent_in_us);
+  }
+}
+
+void QualityScalerResource::OnFrameDropped(
+    EncodedImageCallback::DropReason reason) {
+  RTC_DCHECK_RUN_ON(encoder_queue());
+  if (!quality_scaler_)
+    return;
+  switch (reason) {
+    case EncodedImageCallback::DropReason::kDroppedByMediaOptimizations:
+      quality_scaler_->ReportDroppedFrameByMediaOpt();
+      break;
+    case EncodedImageCallback::DropReason::kDroppedByEncoder:
+      quality_scaler_->ReportDroppedFrameByEncoder();
+      break;
+  }
+}
+
+void QualityScalerResource::OnReportQpUsageHigh() {
+  OnResourceUsageStateMeasured(ResourceUsageState::kOveruse);
+}
+
+void QualityScalerResource::OnReportQpUsageLow() {
+  OnResourceUsageStateMeasured(ResourceUsageState::kUnderuse);
+}
+
+}  // namespace webrtc