Home | History | Annotate | Download | only in audio_processing 
      1 /*
      2  *  Copyright (c) 2012 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_NOISE_SUPPRESSION_IMPL_H_
     12 #define WEBRTC_MODULES_AUDIO_PROCESSING_NOISE_SUPPRESSION_IMPL_H_
     13 
     14 #include "webrtc/modules/audio_processing/include/audio_processing.h"
     15 #include "webrtc/modules/audio_processing/processing_component.h"
     16 
     17 namespace webrtc {
     18 
     19 class AudioBuffer;
     20 class CriticalSectionWrapper;
     21 
     22 class NoiseSuppressionImpl : public NoiseSuppression,
     23                              public ProcessingComponent {
     24  public:
     25   NoiseSuppressionImpl(const AudioProcessing* apm,
     26                        CriticalSectionWrapper* crit);
     27   virtual ~NoiseSuppressionImpl();
     28 
     29   int AnalyzeCaptureAudio(AudioBuffer* audio);
     30   int ProcessCaptureAudio(AudioBuffer* audio);
     31 
     32   // NoiseSuppression implementation.
     33   virtual bool is_enabled() const OVERRIDE;
     34   virtual float speech_probability() const OVERRIDE;
     35 
     36  private:
     37   // NoiseSuppression implementation.
     38   virtual int Enable(bool enable) OVERRIDE;
     39   virtual int set_level(Level level) OVERRIDE;
     40   virtual Level level() const OVERRIDE;
     41 
     42   // ProcessingComponent implementation.
     43   virtual void* CreateHandle() const OVERRIDE;
     44   virtual int InitializeHandle(void* handle) const OVERRIDE;
     45   virtual int ConfigureHandle(void* handle) const OVERRIDE;
     46   virtual void DestroyHandle(void* handle) const OVERRIDE;
     47   virtual int num_handles_required() const OVERRIDE;
     48   virtual int GetHandleError(void* handle) const OVERRIDE;
     49 
     50   const AudioProcessing* apm_;
     51   CriticalSectionWrapper* crit_;
     52   Level level_;
     53 };
     54 
     55 }  // namespace webrtc
     56 
     57 #endif  // WEBRTC_MODULES_AUDIO_PROCESSING_NOISE_SUPPRESSION_IMPL_H_
     58