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