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_LEVEL_ESTIMATOR_IMPL_H_
12#define WEBRTC_MODULES_AUDIO_PROCESSING_LEVEL_ESTIMATOR_IMPL_H_
13
14#include "webrtc/modules/audio_processing/include/audio_processing.h"
15#include "webrtc/modules/audio_processing/processing_component.h"
16#include "webrtc/modules/audio_processing/rms_level.h"
17
18namespace webrtc {
19
20class AudioBuffer;
21class CriticalSectionWrapper;
22
23class LevelEstimatorImpl : public LevelEstimator,
24                           public ProcessingComponent {
25 public:
26  LevelEstimatorImpl(const AudioProcessing* apm,
27                     CriticalSectionWrapper* crit);
28  virtual ~LevelEstimatorImpl();
29
30  int ProcessStream(AudioBuffer* audio);
31
32  // LevelEstimator implementation.
33  virtual bool is_enabled() const OVERRIDE;
34
35 private:
36  // LevelEstimator implementation.
37  virtual int Enable(bool enable) OVERRIDE;
38  virtual int RMS() OVERRIDE;
39
40  // ProcessingComponent implementation.
41  virtual void* CreateHandle() const OVERRIDE;
42  virtual int InitializeHandle(void* handle) const OVERRIDE;
43  virtual int ConfigureHandle(void* handle) const OVERRIDE;
44  virtual void DestroyHandle(void* handle) const OVERRIDE;
45  virtual int num_handles_required() const OVERRIDE;
46  virtual int GetHandleError(void* handle) const OVERRIDE;
47
48  CriticalSectionWrapper* crit_;
49};
50
51}  // namespace webrtc
52
53#endif  // WEBRTC_MODULES_AUDIO_PROCESSING_LEVEL_ESTIMATOR_IMPL_H_
54