53 lines
1.7 KiB
C
53 lines
1.7 KiB
C
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/*
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* Copyright (c) 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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#ifndef RTC_BASE_EXPERIMENTS_QUALITY_RAMPUP_EXPERIMENT_H_
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#define RTC_BASE_EXPERIMENTS_QUALITY_RAMPUP_EXPERIMENT_H_
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#include "absl/types/optional.h"
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#include "api/transport/webrtc_key_value_config.h"
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#include "rtc_base/experiments/field_trial_parser.h"
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namespace webrtc {
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class QualityRampupExperiment final {
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public:
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static QualityRampupExperiment ParseSettings();
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absl::optional<int> MinPixels() const;
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absl::optional<int> MinDurationMs() const;
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absl::optional<double> MaxBitrateFactor() const;
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// Sets the max bitrate and the frame size.
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// The call has no effect if the frame size is less than |min_pixels_|.
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void SetMaxBitrate(int pixels, uint32_t max_bitrate_kbps);
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// Returns true if the available bandwidth is a certain percentage
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// (max_bitrate_factor_) above |max_bitrate_kbps_| for |min_duration_ms_|.
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bool BwHigh(int64_t now_ms, uint32_t available_bw_kbps);
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bool Enabled() const;
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private:
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explicit QualityRampupExperiment(
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const WebRtcKeyValueConfig* const key_value_config);
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FieldTrialOptional<int> min_pixels_;
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FieldTrialOptional<int> min_duration_ms_;
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FieldTrialOptional<double> max_bitrate_factor_;
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absl::optional<int64_t> start_ms_;
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absl::optional<uint32_t> max_bitrate_kbps_;
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};
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} // namespace webrtc
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#endif // RTC_BASE_EXPERIMENTS_QUALITY_RAMPUP_EXPERIMENT_H_
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