Line data    Source code

       1             : /*
       2             :  *  Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
       3             :  *
       4             :  *  Use of this source code is governed by a BSD-style license
       5             :  *  that can be found in the LICENSE file in the root of the source
       6             :  *  tree. An additional intellectual property rights grant can be found
       7             :  *  in the file PATENTS.  All contributing project authors may
       8             :  *  be found in the AUTHORS file in the root of the source tree.
       9             :  */
      10             : 
      11             : #ifndef WEBRTC_MODULES_AUDIO_PROCESSING_LEVEL_CONTROLLER_NOISE_SPECTRUM_ESTIMATOR_H_
      12             : #define WEBRTC_MODULES_AUDIO_PROCESSING_LEVEL_CONTROLLER_NOISE_SPECTRUM_ESTIMATOR_H_
      13             : 
      14             : #include "webrtc/base/array_view.h"
      15             : #include "webrtc/base/constructormagic.h"
      16             : 
      17             : namespace webrtc {
      18             : 
      19             : class ApmDataDumper;
      20             : 
      21             : class NoiseSpectrumEstimator {
      22             :  public:
      23             :   explicit NoiseSpectrumEstimator(ApmDataDumper* data_dumper);
      24             :   void Initialize();
      25             :   void Update(rtc::ArrayView<const float> spectrum, bool first_update);
      26             : 
      27           0 :   rtc::ArrayView<const float> GetNoiseSpectrum() const {
      28           0 :     return rtc::ArrayView<const float>(noise_spectrum_);
      29             :   }
      30             : 
      31             :  private:
      32             :   ApmDataDumper* data_dumper_;
      33             :   float noise_spectrum_[65];
      34             : 
      35             :   RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(NoiseSpectrumEstimator);
      36             : };
      37             : 
      38             : }  // namespace webrtc
      39             : 
      40             : #endif  // WEBRTC_MODULES_AUDIO_PROCESSING_LEVEL_CONTROLLER_NOISE_SPECTRUM_ESTIMATOR_H_