2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
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.
11 #ifndef WEBRTC_MODULES_AUDIO_PROCESSING_GAIN_CONTROL_IMPL_H_
12 #define WEBRTC_MODULES_AUDIO_PROCESSING_GAIN_CONTROL_IMPL_H_
16 #include "webrtc/modules/audio_processing/include/audio_processing.h"
17 #include "webrtc/modules/audio_processing/processing_component.h"
22 class CriticalSectionWrapper;
24 class GainControlImpl : public GainControl,
25 public ProcessingComponent {
27 GainControlImpl(const AudioProcessing* apm,
28 CriticalSectionWrapper* crit);
29 virtual ~GainControlImpl();
31 int ProcessRenderAudio(AudioBuffer* audio);
32 int AnalyzeCaptureAudio(AudioBuffer* audio);
33 int ProcessCaptureAudio(AudioBuffer* audio);
35 // ProcessingComponent implementation.
36 virtual int Initialize() OVERRIDE;
38 // GainControl implementation.
39 virtual bool is_enabled() const OVERRIDE;
40 virtual int stream_analog_level() OVERRIDE;
43 // GainControl implementation.
44 virtual int Enable(bool enable) OVERRIDE;
45 virtual int set_stream_analog_level(int level) OVERRIDE;
46 virtual int set_mode(Mode mode) OVERRIDE;
47 virtual Mode mode() const OVERRIDE;
48 virtual int set_target_level_dbfs(int level) OVERRIDE;
49 virtual int target_level_dbfs() const OVERRIDE;
50 virtual int set_compression_gain_db(int gain) OVERRIDE;
51 virtual int compression_gain_db() const OVERRIDE;
52 virtual int enable_limiter(bool enable) OVERRIDE;
53 virtual bool is_limiter_enabled() const OVERRIDE;
54 virtual int set_analog_level_limits(int minimum, int maximum) OVERRIDE;
55 virtual int analog_level_minimum() const OVERRIDE;
56 virtual int analog_level_maximum() const OVERRIDE;
57 virtual bool stream_is_saturated() const OVERRIDE;
59 // ProcessingComponent implementation.
60 virtual void* CreateHandle() const OVERRIDE;
61 virtual int InitializeHandle(void* handle) const OVERRIDE;
62 virtual int ConfigureHandle(void* handle) const OVERRIDE;
63 virtual int DestroyHandle(void* handle) const OVERRIDE;
64 virtual int num_handles_required() const OVERRIDE;
65 virtual int GetHandleError(void* handle) const OVERRIDE;
67 const AudioProcessing* apm_;
68 CriticalSectionWrapper* crit_;
70 int minimum_capture_level_;
71 int maximum_capture_level_;
72 bool limiter_enabled_;
73 int target_level_dbfs_;
74 int compression_gain_db_;
75 std::vector<int> capture_levels_;
76 int analog_capture_level_;
77 bool was_analog_level_set_;
78 bool stream_is_saturated_;
82 #endif // WEBRTC_MODULES_AUDIO_PROCESSING_GAIN_CONTROL_IMPL_H_