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52f8188f5d
This reverts commit 6f37ed78d9.
Reason for revert: <INSERT REASONING HERE>
Original change's description:
> Deprecate the adaptive level controller
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> Level control handled by default-on AGC.
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> Bug: none
> Change-Id: I405daeceece12c896d41156b649fcfd556726f77
> Reviewed-on: https://webrtc-review.googlesource.com/59682
> Reviewed-by: Fredrik Solenberg <solenberg@webrtc.org>
> Reviewed-by: Alex Loiko <aleloi@webrtc.org>
> Commit-Queue: Sam Zackrisson <saza@webrtc.org>
> Cr-Commit-Position: refs/heads/master@{#22305}
TBR=solenberg@webrtc.org,saza@webrtc.org,aleloi@webrtc.org
Change-Id: Ic52f41fcbebfd2291a51b17ac788313e1ceef163
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: none
Reviewed-on: https://webrtc-review.googlesource.com/60240
Reviewed-by: Sam Zackrisson <saza@webrtc.org>
Commit-Queue: Sam Zackrisson <saza@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#22308}
48 lines
1.4 KiB
C++
48 lines
1.4 KiB
C++
/*
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* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "modules/audio_processing/level_controller/saturating_gain_estimator.h"
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#include <math.h>
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#include <algorithm>
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#include "modules/audio_processing/level_controller/level_controller_constants.h"
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#include "modules/audio_processing/logging/apm_data_dumper.h"
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namespace webrtc {
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SaturatingGainEstimator::SaturatingGainEstimator() {
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Initialize();
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}
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SaturatingGainEstimator::~SaturatingGainEstimator() {}
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void SaturatingGainEstimator::Initialize() {
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saturating_gain_ = kMaxLcGain;
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saturating_gain_hold_counter_ = 0;
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}
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void SaturatingGainEstimator::Update(float gain, int num_saturations) {
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bool too_many_saturations = (num_saturations > 2);
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if (too_many_saturations) {
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saturating_gain_ = 0.95f * gain;
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saturating_gain_hold_counter_ = 1000;
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} else {
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saturating_gain_hold_counter_ =
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std::max(0, saturating_gain_hold_counter_ - 1);
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if (saturating_gain_hold_counter_ == 0) {
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saturating_gain_ *= 1.001f;
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saturating_gain_ = std::min(kMaxLcGain, saturating_gain_);
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}
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}
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}
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} // namespace webrtc
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