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f9fc171568
Bug: webrtc:9670 Change-Id: Idb4ca130bfa652b2d0bddb5bee9ed8e34c97150a Reviewed-on: https://webrtc-review.googlesource.com/96060 Commit-Queue: Michael Horowitz <mhoro@webrtc.org> Reviewed-by: Rasmus Brandt <brandtr@webrtc.org> Reviewed-by: Stefan Holmer <stefan@webrtc.org> Cr-Commit-Position: refs/heads/master@{#24457}
49 lines
1.5 KiB
C++
49 lines
1.5 KiB
C++
/*
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* Copyright 2018 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/rtt_mult_experiment.h"
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#include <algorithm>
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#include <string>
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#include "rtc_base/logging.h"
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#include "system_wrappers/include/field_trial.h"
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namespace webrtc {
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namespace {
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const char kRttMultExperiment[] = "WebRTC-RttMult";
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const float max_rtt_mult_setting = 1.0;
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const float min_rtt_mult_setting = 0.0;
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} // namespace
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bool RttMultExperiment::RttMultEnabled() {
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return field_trial::IsEnabled(kRttMultExperiment);
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}
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float RttMultExperiment::GetRttMultValue() {
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const std::string group =
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webrtc::field_trial::FindFullName(kRttMultExperiment);
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if (group.empty()) {
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RTC_LOG(LS_WARNING) << "Could not find rtt_mult_experiment.";
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return 0.0;
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}
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float rtt_mult_setting;
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if (sscanf(group.c_str(), "Enabled-%f", &rtt_mult_setting) != 1) {
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RTC_LOG(LS_WARNING) << "Invalid number of parameters provided.";
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return 0.0;
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}
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// Bounds check rtt_mult_setting value.
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rtt_mult_setting = std::min(rtt_mult_setting, max_rtt_mult_setting);
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rtt_mult_setting = std::max(rtt_mult_setting, min_rtt_mult_setting);
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return rtt_mult_setting;
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}
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} // namespace webrtc
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