db6af36979
* Move 'VadWithLevel' to AGC2 where it belongs. * Remove the vectors from VadWithLevel. They were there to make it work with modules/audio_processing/vad, which we don't need any longer. * Remove the vector handling from AGC2. It was spread out across AdaptiveDigitalGainApplier, AdaptiveAGC and their unit tests. * Hack the RNN VAD into VadWithLevel. The main issue is the resampling. Bug: webrtc:9076 Change-Id: I13056c985d0ec41269735150caf4aaeb6ff9281e Reviewed-on: https://webrtc-review.googlesource.com/77364 Reviewed-by: Sam Zackrisson <saza@webrtc.org> Commit-Queue: Alex Loiko <aleloi@webrtc.org> Cr-Commit-Position: refs/heads/master@{#23688}
46 lines
1.6 KiB
C++
46 lines
1.6 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.
|
|
*/
|
|
|
|
#ifndef MODULES_AUDIO_PROCESSING_AGC2_ADAPTIVE_DIGITAL_GAIN_APPLIER_H_
|
|
#define MODULES_AUDIO_PROCESSING_AGC2_ADAPTIVE_DIGITAL_GAIN_APPLIER_H_
|
|
|
|
#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;
|
|
|
|
class AdaptiveDigitalGainApplier {
|
|
public:
|
|
explicit AdaptiveDigitalGainApplier(ApmDataDumper* apm_data_dumper);
|
|
// Decide what gain to apply.
|
|
void Process(float input_level_dbfs,
|
|
float input_noise_level_dbfs,
|
|
const VadWithLevel::LevelAndProbability vad_result,
|
|
AudioFrameView<float> float_frame);
|
|
|
|
private:
|
|
float last_gain_db_ = kInitialAdaptiveDigitalGainDb;
|
|
GainApplier gain_applier_;
|
|
|
|
// 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
|
|
|
|
#endif // MODULES_AUDIO_PROCESSING_AGC2_ADAPTIVE_DIGITAL_GAIN_APPLIER_H_
|