xref: /aosp_15_r20/external/webrtc/rtc_base/experiments/bandwidth_quality_scaler_settings.cc (revision d9f758449e529ab9291ac668be2861e7a55c2422) 
1 /*
2  *  Copyright (c) 2021 The WebRTC project authors. All Rights Reserved.
3  *
4  *  Use of this source code is governed by a BSD-style license
5  *  that can be found in the LICENSE file in the root of the source
6  *  tree. An additional intellectual property rights grant can be found
7  *  in the file PATENTS.  All contributing project authors may
8  *  be found in the AUTHORS file in the root of the source tree.
9  */
10 
11 #include "rtc_base/experiments/bandwidth_quality_scaler_settings.h"
12 
13 #include "api/transport/field_trial_based_config.h"
14 #include "rtc_base/logging.h"
15 
16 namespace webrtc {
17 
BandwidthQualityScalerSettings(const FieldTrialsView * const key_value_config)18 BandwidthQualityScalerSettings::BandwidthQualityScalerSettings(
19     const FieldTrialsView* const key_value_config)
20     : bitrate_state_update_interval_s_("bitrate_state_update_interval_s_") {
21   ParseFieldTrial(
22       {&bitrate_state_update_interval_s_},
23       key_value_config->Lookup("WebRTC-Video-BandwidthQualityScalerSettings"));
24 }
25 
26 BandwidthQualityScalerSettings
ParseFromFieldTrials()27 BandwidthQualityScalerSettings::ParseFromFieldTrials() {
28   FieldTrialBasedConfig field_trial_config;
29   return BandwidthQualityScalerSettings(&field_trial_config);
30 }
31 
32 absl::optional<uint32_t>
BitrateStateUpdateInterval() const33 BandwidthQualityScalerSettings::BitrateStateUpdateInterval() const {
34   if (bitrate_state_update_interval_s_ &&
35       bitrate_state_update_interval_s_.Value() <= 0) {
36     RTC_LOG(LS_WARNING)
37         << "Unsupported bitrate_state_update_interval_s_ value, ignored.";
38     return absl::nullopt;
39   }
40   return bitrate_state_update_interval_s_.GetOptional();
41 }
42 
43 }  // namespace webrtc
44