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92ea95e34a
In https://webrtc-review.googlesource.com/c/src/+/1560 we moved WebRTC from src/webrtc to src/ (in order to preserve an healthy git history). This CL takes care of fixing header guards, #include paths, etc... NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true TBR=tommi@webrtc.org Bug: chromium:611808 Change-Id: Iea91618212bee0af16aa3f05071eab8f93706578 Reviewed-on: https://webrtc-review.googlesource.com/1561 Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Reviewed-by: Henrik Kjellander <kjellander@webrtc.org> Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org> Cr-Commit-Position: refs/heads/master@{#19846}
68 lines
2.3 KiB
C++
68 lines
2.3 KiB
C++
/*
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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 MODULES_AUDIO_PROCESSING_AEC3_COMFORT_NOISE_GENERATOR_H_
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#define MODULES_AUDIO_PROCESSING_AEC3_COMFORT_NOISE_GENERATOR_H_
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#include <array>
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#include <memory>
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#include "modules/audio_processing/aec3/aec3_common.h"
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#include "modules/audio_processing/aec3/aec_state.h"
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#include "modules/audio_processing/aec3/fft_data.h"
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#include "rtc_base/constructormagic.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 EstimateComfortNoise_SSE2(const std::array<float, kFftLengthBy2Plus1>& N2,
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uint32_t* seed,
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FftData* lower_band_noise,
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FftData* upper_band_noise);
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#endif
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void EstimateComfortNoise(const std::array<float, kFftLengthBy2Plus1>& N2,
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uint32_t* seed,
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FftData* lower_band_noise,
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FftData* upper_band_noise);
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} // namespace aec3
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// Generates the comfort noise.
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class ComfortNoiseGenerator {
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public:
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explicit ComfortNoiseGenerator(Aec3Optimization optimization);
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~ComfortNoiseGenerator();
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// Computes the comfort noise.
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void Compute(const AecState& aec_state,
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const std::array<float, kFftLengthBy2Plus1>& capture_spectrum,
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FftData* lower_band_noise,
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FftData* upper_band_noise);
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// Returns the estimate of the background noise spectrum.
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const std::array<float, kFftLengthBy2Plus1>& NoiseSpectrum() const {
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return N2_;
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}
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private:
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const Aec3Optimization optimization_;
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uint32_t seed_;
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std::unique_ptr<std::array<float, kFftLengthBy2Plus1>> N2_initial_;
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std::array<float, kFftLengthBy2Plus1> Y2_smoothed_;
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std::array<float, kFftLengthBy2Plus1> N2_;
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int N2_counter_ = 0;
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RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(ComfortNoiseGenerator);
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};
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} // namespace webrtc
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#endif // MODULES_AUDIO_PROCESSING_AEC3_COMFORT_NOISE_GENERATOR_H_
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