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/*
* Copyright (c) 2016 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 WEBRTC_MODULES_AUDIO_PROCESSING_LEVEL_CONTROLLER_NOISE_SPECTRUM_ESTIMATOR_H_
#define WEBRTC_MODULES_AUDIO_PROCESSING_LEVEL_CONTROLLER_NOISE_SPECTRUM_ESTIMATOR_H_
#include "webrtc/base/array_view.h"
#include "webrtc/base/constructormagic.h"
namespace webrtc {
class ApmDataDumper;
class NoiseSpectrumEstimator {
public:
explicit NoiseSpectrumEstimator(ApmDataDumper* data_dumper);
void Initialize();
void Update(rtc::ArrayView<const float> spectrum, bool first_update);
rtc::ArrayView<const float> GetNoiseSpectrum() const {
return rtc::ArrayView<const float>(noise_spectrum_);
}
private:
ApmDataDumper* data_dumper_;
float noise_spectrum_[65];
RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(NoiseSpectrumEstimator);
};
} // namespace webrtc
#endif // WEBRTC_MODULES_AUDIO_PROCESSING_LEVEL_CONTROLLER_NOISE_SPECTRUM_ESTIMATOR_H_