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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 MODULES_AUDIO_PROCESSING_AGC2_NOISE_SPECTRUM_ESTIMATOR_H_
#define MODULES_AUDIO_PROCESSING_AGC2_NOISE_SPECTRUM_ESTIMATOR_H_
#include "api/array_view.h"
namespace webrtc {
class ApmDataDumper;
class NoiseSpectrumEstimator {
public:
explicit NoiseSpectrumEstimator(ApmDataDumper* data_dumper);
NoiseSpectrumEstimator() = delete;
NoiseSpectrumEstimator(const NoiseSpectrumEstimator&) = delete;
NoiseSpectrumEstimator& operator=(const NoiseSpectrumEstimator&) = delete;
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];
};
} // namespace webrtc
#endif // MODULES_AUDIO_PROCESSING_AGC2_NOISE_SPECTRUM_ESTIMATOR_H_
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