69 lines
2.5 KiB
C++
69 lines
2.5 KiB
C++
/*
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* Copyright 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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#include "rtc_base/experiments/stable_target_rate_experiment.h"
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#include "api/transport/field_trial_based_config.h"
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#include "rtc_base/experiments/rate_control_settings.h"
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namespace webrtc {
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namespace {
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constexpr char kFieldTrialName[] = "WebRTC-StableTargetRate";
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} // namespace
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StableTargetRateExperiment::StableTargetRateExperiment(
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const WebRtcKeyValueConfig* const key_value_config,
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double default_video_hysteresis,
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double default_screenshare_hysteresis)
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: enabled_("enabled", false),
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video_hysteresis_factor_("video_hysteresis_factor",
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default_video_hysteresis),
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screenshare_hysteresis_factor_("screenshare_hysteresis_factor",
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default_screenshare_hysteresis) {
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ParseFieldTrial(
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{&enabled_, &video_hysteresis_factor_, &screenshare_hysteresis_factor_},
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key_value_config->Lookup(kFieldTrialName));
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}
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StableTargetRateExperiment::StableTargetRateExperiment(
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const StableTargetRateExperiment&) = default;
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StableTargetRateExperiment::StableTargetRateExperiment(
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StableTargetRateExperiment&&) = default;
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StableTargetRateExperiment StableTargetRateExperiment::ParseFromFieldTrials() {
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FieldTrialBasedConfig config;
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return ParseFromKeyValueConfig(&config);
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}
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StableTargetRateExperiment StableTargetRateExperiment::ParseFromKeyValueConfig(
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const WebRtcKeyValueConfig* const key_value_config) {
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RateControlSettings rate_control =
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RateControlSettings::ParseFromKeyValueConfig(key_value_config);
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return StableTargetRateExperiment(
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key_value_config,
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rate_control.GetSimulcastHysteresisFactor(VideoCodecMode::kRealtimeVideo),
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rate_control.GetSimulcastHysteresisFactor(
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VideoCodecMode::kScreensharing));
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}
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bool StableTargetRateExperiment::IsEnabled() const {
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return enabled_.Get();
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}
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double StableTargetRateExperiment::GetVideoHysteresisFactor() const {
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return video_hysteresis_factor_.Get();
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}
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double StableTargetRateExperiment::GetScreenshareHysteresisFactor() const {
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return screenshare_hysteresis_factor_.Get();
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}
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} // namespace webrtc
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