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https://github.com/mollyim/webrtc.git
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5118bbc8b7
Bug: webrtc:10223 Change-Id: I8e9ee0cd333634e7d0b53d3d446a580374cc88b4 Reviewed-on: https://webrtc-review.googlesource.com/c/120342 Commit-Queue: Erik Språng <sprang@webrtc.org> Reviewed-by: Sebastian Jansson <srte@webrtc.org> Cr-Commit-Position: refs/heads/master@{#26452}
66 lines
2.3 KiB
C++
66 lines
2.3 KiB
C++
/*
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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_RATE_CONTROL_SETTINGS_H_
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#define RTC_BASE_EXPERIMENTS_RATE_CONTROL_SETTINGS_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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#include "rtc_base/experiments/field_trial_units.h"
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namespace webrtc {
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class RateControlSettings final {
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public:
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~RateControlSettings();
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RateControlSettings(RateControlSettings&&);
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static RateControlSettings ParseFromFieldTrials();
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static RateControlSettings ParseFromKeyValueConfig(
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const WebRtcKeyValueConfig* const key_value_config);
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// When CongestionWindowPushback is enabled, the pacer is oblivious to
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// the congestion window. The relation between outstanding data and
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// the congestion window affects encoder allocations directly.
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bool UseCongestionWindow() const;
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int64_t GetCongestionWindowAdditionalTimeMs() const;
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bool UseCongestionWindowPushback() const;
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uint32_t CongestionWindowMinPushbackTargetBitrateBps() const;
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absl::optional<double> GetPacingFactor() const;
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bool UseAlrProbing() const;
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bool LibvpxVp8TrustedRateController() const;
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bool LibvpxVp9TrustedRateController() const;
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double GetSimulcastVideoHysteresisFactor() const;
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double GetSimulcastScreenshareHysteresisFactor() const;
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bool TriggerProbeOnMaxAllocatedBitrateChange() const;
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private:
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explicit RateControlSettings(
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const WebRtcKeyValueConfig* const key_value_config);
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FieldTrialOptional<int> congestion_window_;
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FieldTrialOptional<int> congestion_window_pushback_;
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FieldTrialOptional<double> pacing_factor_;
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FieldTrialParameter<bool> alr_probing_;
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FieldTrialParameter<bool> trust_vp8_;
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FieldTrialParameter<bool> trust_vp9_;
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FieldTrialParameter<double> video_hysteresis_;
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FieldTrialParameter<double> screenshare_hysteresis_;
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FieldTrialParameter<bool> probe_max_allocation_;
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};
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} // namespace webrtc
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#endif // RTC_BASE_EXPERIMENTS_RATE_CONTROL_SETTINGS_H_
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