mirror of
https://github.com/mollyim/webrtc.git
synced 2025-05-13 22:00:47 +01:00
cf9cbf5edb
Bug: webrtc:10126 Change-Id: I1362d183bb91510db4e2763a779bcdf681d855ef Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/149069 Reviewed-by: Florent Castelli <orphis@webrtc.org> Commit-Queue: Erik Språng <sprang@webrtc.org> Cr-Commit-Position: refs/heads/master@{#29066}
74 lines
2.9 KiB
C++
74 lines
2.9 KiB
C++
/*
|
|
* 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,
|
|
absl::optional<double> default_video_hysteresis,
|
|
absl::optional<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) {
|
|
if (key_value_config->Lookup("WebRTC-VideoRateControl") != "") {
|
|
RateControlSettings rate_control =
|
|
RateControlSettings::ParseFromKeyValueConfig(key_value_config);
|
|
return StableTargetRateExperiment(key_value_config,
|
|
rate_control.GetSimulcastHysteresisFactor(
|
|
VideoCodecMode::kRealtimeVideo),
|
|
rate_control.GetSimulcastHysteresisFactor(
|
|
VideoCodecMode::kScreensharing));
|
|
}
|
|
return StableTargetRateExperiment(key_value_config, absl::nullopt,
|
|
absl::nullopt);
|
|
}
|
|
|
|
bool StableTargetRateExperiment::IsEnabled() const {
|
|
return enabled_.Get();
|
|
}
|
|
|
|
absl::optional<double> StableTargetRateExperiment::GetVideoHysteresisFactor()
|
|
const {
|
|
return video_hysteresis_factor_.GetOptional();
|
|
}
|
|
|
|
absl::optional<double>
|
|
StableTargetRateExperiment::GetScreenshareHysteresisFactor() const {
|
|
return screenshare_hysteresis_factor_.GetOptional();
|
|
}
|
|
|
|
} // namespace webrtc
|