Alex Loiko | 4bb1e4a | 2018-10-05 09:06:14 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2018 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 "modules/audio_processing/agc2/agc2_common.h" |
| 12 | |
Yves Gerey | 988cc08 | 2018-10-23 10:03:01 | [diff] [blame^] | 13 | #include <stdio.h> |
Alex Loiko | 4bb1e4a | 2018-10-05 09:06:14 | [diff] [blame] | 14 | #include <string> |
| 15 | |
| 16 | #include "system_wrappers/include/field_trial.h" |
| 17 | |
| 18 | namespace webrtc { |
| 19 | |
| 20 | float GetInitialSaturationMarginDb() { |
| 21 | constexpr char kForceInitialSaturationMarginFieldTrial[] = |
| 22 | "WebRTC-Audio-Agc2ForceInitialSaturationMargin"; |
| 23 | |
| 24 | const bool use_forced_initial_saturation_margin = |
| 25 | webrtc::field_trial::IsEnabled(kForceInitialSaturationMarginFieldTrial); |
| 26 | if (use_forced_initial_saturation_margin) { |
| 27 | const std::string field_trial_string = webrtc::field_trial::FindFullName( |
| 28 | kForceInitialSaturationMarginFieldTrial); |
| 29 | float margin_db = -1; |
| 30 | if (sscanf(field_trial_string.c_str(), "Enabled-%f", &margin_db) == 1 && |
| 31 | margin_db >= 12.f && margin_db <= 25.f) { |
| 32 | return margin_db; |
| 33 | } |
| 34 | } |
| 35 | constexpr float kDefaultInitialSaturationMarginDb = 20.f; |
| 36 | return kDefaultInitialSaturationMarginDb; |
| 37 | } |
| 38 | |
| 39 | float GetExtraSaturationMarginOffsetDb() { |
| 40 | constexpr char kForceExtraSaturationMarginFieldTrial[] = |
| 41 | "WebRTC-Audio-Agc2ForceExtraSaturationMargin"; |
| 42 | |
| 43 | const bool use_forced_extra_saturation_margin = |
| 44 | webrtc::field_trial::IsEnabled(kForceExtraSaturationMarginFieldTrial); |
| 45 | if (use_forced_extra_saturation_margin) { |
| 46 | const std::string field_trial_string = webrtc::field_trial::FindFullName( |
| 47 | kForceExtraSaturationMarginFieldTrial); |
| 48 | float margin_db = -1; |
| 49 | if (sscanf(field_trial_string.c_str(), "Enabled-%f", &margin_db) == 1 && |
| 50 | margin_db >= 0.f && margin_db <= 10.f) { |
| 51 | return margin_db; |
| 52 | } |
| 53 | } |
| 54 | constexpr float kDefaultExtraSaturationMarginDb = 2.f; |
| 55 | return kDefaultExtraSaturationMarginDb; |
| 56 | } |
| 57 | }; // namespace webrtc |