blob: be1102d12e83d538430270272117dd496ea9563e [file] [log] [blame]
* Copyright (c) 2017 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 "webrtc/modules/audio_processing/aec3/aec3_common.h"
#include "webrtc/modules/audio_processing/aec3/render_buffer.h"
#include "webrtc/modules/audio_processing/aec3/render_signal_analyzer.h"
#include "webrtc/rtc_base/constructormagic.h"
namespace webrtc {
// Provides functionality for computing the fixed gain for the shadow filter.
class ShadowFilterUpdateGain {
// Takes action in the case of a known echo path change.
void HandleEchoPathChange();
// Computes the gain.
void Compute(const RenderBuffer& render_buffer,
const RenderSignalAnalyzer& render_signal_analyzer,
const FftData& E_shadow,
size_t size_partitions,
bool saturated_capture_signal,
FftData* G);
// TODO(peah): Check whether this counter should instead be initialized to a
// large value.
size_t poor_signal_excitation_counter_ = 0;
size_t call_counter_ = 0;
} // namespace webrtc