tg2sip/webrtc_dsp/modules/audio_processing/agc2/agc2_common.cc

58 lines
2.0 KiB
C++

/*
* Copyright (c) 2018 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 "modules/audio_processing/agc2/agc2_common.h"
#include <stdio.h>
#include <string>
#include "system_wrappers/include/field_trial.h"
namespace webrtc {
float GetInitialSaturationMarginDb() {
constexpr char kForceInitialSaturationMarginFieldTrial[] =
"WebRTC-Audio-Agc2ForceInitialSaturationMargin";
const bool use_forced_initial_saturation_margin =
webrtc::field_trial::IsEnabled(kForceInitialSaturationMarginFieldTrial);
if (use_forced_initial_saturation_margin) {
const std::string field_trial_string = webrtc::field_trial::FindFullName(
kForceInitialSaturationMarginFieldTrial);
float margin_db = -1;
if (sscanf(field_trial_string.c_str(), "Enabled-%f", &margin_db) == 1 &&
margin_db >= 12.f && margin_db <= 25.f) {
return margin_db;
}
}
constexpr float kDefaultInitialSaturationMarginDb = 20.f;
return kDefaultInitialSaturationMarginDb;
}
float GetExtraSaturationMarginOffsetDb() {
constexpr char kForceExtraSaturationMarginFieldTrial[] =
"WebRTC-Audio-Agc2ForceExtraSaturationMargin";
const bool use_forced_extra_saturation_margin =
webrtc::field_trial::IsEnabled(kForceExtraSaturationMarginFieldTrial);
if (use_forced_extra_saturation_margin) {
const std::string field_trial_string = webrtc::field_trial::FindFullName(
kForceExtraSaturationMarginFieldTrial);
float margin_db = -1;
if (sscanf(field_trial_string.c_str(), "Enabled-%f", &margin_db) == 1 &&
margin_db >= 0.f && margin_db <= 10.f) {
return margin_db;
}
}
constexpr float kDefaultExtraSaturationMarginDb = 2.f;
return kDefaultExtraSaturationMarginDb;
}
}; // namespace webrtc