| /* |
| * 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/api/array_view.h" |
| #include "webrtc/rtc_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_ |