64 lines
2.3 KiB
C
64 lines
2.3 KiB
C
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/*
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* Copyright (c) 2017 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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#ifndef WEBRTC_MODULES_AUDIO_PROCESSING_AEC3_SUPPRESSION_GAIN_H_
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#define WEBRTC_MODULES_AUDIO_PROCESSING_AEC3_SUPPRESSION_GAIN_H_
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#include <array>
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#include "webrtc/base/constructormagic.h"
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#include "webrtc/modules/audio_processing/aec3/aec3_common.h"
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namespace webrtc {
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namespace aec3 {
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#if defined(WEBRTC_ARCH_X86_FAMILY)
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void ComputeGains_SSE2(
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const std::array<float, kFftLengthBy2Plus1>& nearend_power,
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const std::array<float, kFftLengthBy2Plus1>& residual_echo_power,
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const std::array<float, kFftLengthBy2Plus1>& comfort_noise_power,
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float strong_nearend_margin,
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std::array<float, kFftLengthBy2 - 1>* previous_gain_squared,
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std::array<float, kFftLengthBy2 - 1>* previous_masker,
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std::array<float, kFftLengthBy2Plus1>* gain);
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#endif
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void ComputeGains(
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const std::array<float, kFftLengthBy2Plus1>& nearend_power,
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const std::array<float, kFftLengthBy2Plus1>& residual_echo_power,
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const std::array<float, kFftLengthBy2Plus1>& comfort_noise_power,
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float strong_nearend_margin,
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std::array<float, kFftLengthBy2 - 1>* previous_gain_squared,
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std::array<float, kFftLengthBy2 - 1>* previous_masker,
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std::array<float, kFftLengthBy2Plus1>* gain);
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} // namespace aec3
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class SuppressionGain {
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public:
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explicit SuppressionGain(Aec3Optimization optimization);
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void GetGain(const std::array<float, kFftLengthBy2Plus1>& nearend_power,
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const std::array<float, kFftLengthBy2Plus1>& residual_echo_power,
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const std::array<float, kFftLengthBy2Plus1>& comfort_noise_power,
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float strong_nearend_margin,
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std::array<float, kFftLengthBy2Plus1>* gain);
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private:
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const Aec3Optimization optimization_;
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std::array<float, kFftLengthBy2 - 1> previous_gain_squared_;
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std::array<float, kFftLengthBy2 - 1> previous_masker_;
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RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(SuppressionGain);
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};
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} // namespace webrtc
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#endif // WEBRTC_MODULES_AUDIO_PROCESSING_AEC3_SUPPRESSION_GAIN_H_
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