blob: e7f07fcf0676a78f1e3a727f3930be07c692a478 [file] [log] [blame]
* 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 "modules/audio_processing/agc2/gain_applier.h"
#include "modules/audio_processing/agc2/vad_with_level.h"
#include "modules/audio_processing/include/audio_frame_view.h"
namespace webrtc {
class ApmDataDumper;
struct SignalWithLevels {
SignalWithLevels(AudioFrameView<float> float_frame);
SignalWithLevels(const SignalWithLevels&);
float input_level_dbfs = -1.f;
float input_noise_level_dbfs = -1.f;
VadWithLevel::LevelAndProbability vad_result;
float limiter_audio_level_dbfs = -1.f;
bool estimate_is_confident = false;
AudioFrameView<float> float_frame;
class AdaptiveDigitalGainApplier {
explicit AdaptiveDigitalGainApplier(ApmDataDumper* apm_data_dumper);
// Decide what gain to apply.
void Process(SignalWithLevels signal_with_levels);
float last_gain_db_ = kInitialAdaptiveDigitalGainDb;
GainApplier gain_applier_;
int calls_since_last_gain_log_ = 0;
// For some combinations of noise and speech probability, increasing
// the level is not allowed. Since we may get VAD results in bursts,
// we keep track of this variable until the next VAD results come
// in.
bool gain_increase_allowed_ = true;
ApmDataDumper* apm_data_dumper_ = nullptr;
} // namespace webrtc