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   bool is_enabled() const override;
34   float speech_probability() const override;
35   Level level() const override;
36 
37  private:
38   // NoiseSuppression implementation.
39   int Enable(bool enable) override;
40   int set_level(Level level) override;
41 
42   // ProcessingComponent implementation.
43   void* CreateHandle() const override;
44   int InitializeHandle(void* handle) const override;
45   int ConfigureHandle(void* handle) const override;
46   void DestroyHandle(void* handle) const override;
47   int num_handles_required() const override;
48   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