1 /*
2  *  Copyright (c) 2011 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_MAIN_SOURCE_PROCESSING_COMPONENT_H_
12 #define WEBRTC_MODULES_AUDIO_PROCESSING_MAIN_SOURCE_PROCESSING_COMPONENT_H_
13 
14 #include <vector>
15 
16 #include "audio_processing.h"
17 
18 namespace webrtc {
19 class AudioProcessingImpl;
20 
21 class ProcessingComponent {
22  public:
23   explicit ProcessingComponent(const AudioProcessingImpl* apm);
24   virtual ~ProcessingComponent();
25 
26   virtual int Initialize();
27   virtual int Destroy();
28   virtual int get_version(char* version, int version_len_bytes) const = 0;
29 
30   bool is_component_enabled() const;
31 
32  protected:
33   virtual int Configure();
34   int EnableComponent(bool enable);
35   void* handle(int index) const;
36   int num_handles() const;
37 
38  private:
39   virtual void* CreateHandle() const = 0;
40   virtual int InitializeHandle(void* handle) const = 0;
41   virtual int ConfigureHandle(void* handle) const = 0;
42   virtual int DestroyHandle(void* handle) const = 0;
43   virtual int num_handles_required() const = 0;
44   virtual int GetHandleError(void* handle) const = 0;
45 
46   const AudioProcessingImpl* apm_;
47   std::vector<void*> handles_;
48   bool initialized_;
49   bool enabled_;
50   int num_handles_;
51 };
52 }  // namespace webrtc
53 
54 #endif  // WEBRTC_MODULES_AUDIO_PROCESSING_MAIN_SOURCE_PROCESSING_COMPONENT_H__
55