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/*
* 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.
*/
#ifndef MODULES_AUDIO_PROCESSING_AEC3_SUBTRACTOR_OUTPUT_H_
#define MODULES_AUDIO_PROCESSING_AEC3_SUBTRACTOR_OUTPUT_H_
#include <array>
#include "api/array_view.h"
#include "modules/audio_processing/aec3/aec3_common.h"
#include "modules/audio_processing/aec3/fft_data.h"
namespace webrtc {
// Stores the values being returned from the echo subtractor.
struct SubtractorOutput {
SubtractorOutput();
~SubtractorOutput();
std::array<float, kBlockSize> s_main;
std::array<float, kBlockSize> s_shadow;
std::array<float, kBlockSize> e_main;
std::array<float, kBlockSize> e_shadow;
FftData E_main;
std::array<float, kFftLengthBy2Plus1> E2_main;
std::array<float, kFftLengthBy2Plus1> E2_shadow;
float s2_main = 0.f;
float s2_shadow = 0.f;
float e2_main = 0.f;
float e2_shadow = 0.f;
float y2 = 0.f;
float s_main_max_abs = 0.f;
float s_shadow_max_abs = 0.f;
// Reset the struct content.
void Reset();
// Updates the powers of the signals.
void ComputeMetrics(rtc::ArrayView<const float> y);
};
} // namespace webrtc
#endif // MODULES_AUDIO_PROCESSING_AEC3_SUBTRACTOR_OUTPUT_H_