|  | /* | 
|  | *  Copyright (c) 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. | 
|  | */ | 
|  |  | 
|  | #ifndef RTC_BASE_EXPERIMENTS_QUALITY_SCALER_SETTINGS_H_ | 
|  | #define RTC_BASE_EXPERIMENTS_QUALITY_SCALER_SETTINGS_H_ | 
|  |  | 
|  | #include <optional> | 
|  |  | 
|  | #include "api/field_trials_view.h" | 
|  | #include "rtc_base/experiments/field_trial_parser.h" | 
|  |  | 
|  | namespace webrtc { | 
|  |  | 
|  | class QualityScalerSettings final { | 
|  | public: | 
|  | explicit QualityScalerSettings(const FieldTrialsView& field_trials); | 
|  |  | 
|  | std::optional<int> SamplingPeriodMs() const; | 
|  | std::optional<int> AverageQpWindow() const; | 
|  | std::optional<int> MinFrames() const; | 
|  | std::optional<double> InitialScaleFactor() const; | 
|  | std::optional<double> ScaleFactor() const; | 
|  | std::optional<int> InitialBitrateIntervalMs() const; | 
|  | std::optional<double> InitialBitrateFactor() const; | 
|  |  | 
|  | private: | 
|  | FieldTrialOptional<int> sampling_period_ms_; | 
|  | FieldTrialOptional<int> average_qp_window_; | 
|  | FieldTrialOptional<int> min_frames_; | 
|  | FieldTrialOptional<double> initial_scale_factor_; | 
|  | FieldTrialOptional<double> scale_factor_; | 
|  | FieldTrialOptional<int> initial_bitrate_interval_ms_; | 
|  | FieldTrialOptional<double> initial_bitrate_factor_; | 
|  | }; | 
|  |  | 
|  | }  // namespace webrtc | 
|  |  | 
|  | #endif  // RTC_BASE_EXPERIMENTS_QUALITY_SCALER_SETTINGS_H_ |