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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef MEDIA_AUDIO_MAC_AUDIO_MANAGER_MAC_H_ | 5 #ifndef MEDIA_AUDIO_MAC_AUDIO_MANAGER_MAC_H_ |
6 #define MEDIA_AUDIO_MAC_AUDIO_MANAGER_MAC_H_ | 6 #define MEDIA_AUDIO_MAC_AUDIO_MANAGER_MAC_H_ |
7 | 7 |
8 #include <CoreAudio/AudioHardware.h> | 8 #include <CoreAudio/AudioHardware.h> |
9 #include <list> | 9 #include <list> |
10 #include <string> | 10 #include <string> |
11 | 11 |
12 #include "base/basictypes.h" | 12 #include "base/basictypes.h" |
13 #include "base/compiler_specific.h" | 13 #include "base/compiler_specific.h" |
14 #include "media/audio/audio_manager_base.h" | 14 #include "media/audio/audio_manager_base.h" |
15 #include "media/audio/mac/audio_device_listener_mac.h" | 15 #include "media/audio/mac/audio_device_listener_mac.h" |
16 | 16 |
17 namespace media { | 17 namespace media { |
18 | 18 |
19 // Mac OS X implementation of the AudioManager singleton. This class is internal | 19 // Mac OS X implementation of the AudioManager singleton. This class is internal |
20 // to the audio output and only internal users can call methods not exposed by | 20 // to the audio output and only internal users can call methods not exposed by |
21 // the AudioManager class. | 21 // the AudioManager class. |
22 class MEDIA_EXPORT AudioManagerMac : public AudioManagerBase { | 22 class MEDIA_EXPORT AudioManagerMac : public AudioManagerBase { |
23 public: | 23 public: |
24 AudioManagerMac(AudioLogFactory* audio_log_factory); | 24 AudioManagerMac(AudioLogFactory* audio_log_factory); |
25 | 25 |
26 // Implementation of AudioManager. | 26 // Implementation of AudioManager. |
27 virtual bool HasAudioOutputDevices() OVERRIDE; | 27 virtual bool HasAudioOutputDevices() override; |
28 virtual bool HasAudioInputDevices() OVERRIDE; | 28 virtual bool HasAudioInputDevices() override; |
29 virtual void GetAudioInputDeviceNames( | 29 virtual void GetAudioInputDeviceNames( |
30 AudioDeviceNames* device_names) OVERRIDE; | 30 AudioDeviceNames* device_names) override; |
31 virtual void GetAudioOutputDeviceNames( | 31 virtual void GetAudioOutputDeviceNames( |
32 AudioDeviceNames* device_names) OVERRIDE; | 32 AudioDeviceNames* device_names) override; |
33 virtual AudioParameters GetInputStreamParameters( | 33 virtual AudioParameters GetInputStreamParameters( |
34 const std::string& device_id) OVERRIDE; | 34 const std::string& device_id) override; |
35 virtual std::string GetAssociatedOutputDeviceID( | 35 virtual std::string GetAssociatedOutputDeviceID( |
36 const std::string& input_device_id) OVERRIDE; | 36 const std::string& input_device_id) override; |
37 | 37 |
38 // Implementation of AudioManagerBase. | 38 // Implementation of AudioManagerBase. |
39 virtual AudioOutputStream* MakeLinearOutputStream( | 39 virtual AudioOutputStream* MakeLinearOutputStream( |
40 const AudioParameters& params) OVERRIDE; | 40 const AudioParameters& params) override; |
41 virtual AudioOutputStream* MakeLowLatencyOutputStream( | 41 virtual AudioOutputStream* MakeLowLatencyOutputStream( |
42 const AudioParameters& params, | 42 const AudioParameters& params, |
43 const std::string& device_id) OVERRIDE; | 43 const std::string& device_id) override; |
44 virtual AudioInputStream* MakeLinearInputStream( | 44 virtual AudioInputStream* MakeLinearInputStream( |
45 const AudioParameters& params, const std::string& device_id) OVERRIDE; | 45 const AudioParameters& params, const std::string& device_id) override; |
46 virtual AudioInputStream* MakeLowLatencyInputStream( | 46 virtual AudioInputStream* MakeLowLatencyInputStream( |
47 const AudioParameters& params, const std::string& device_id) OVERRIDE; | 47 const AudioParameters& params, const std::string& device_id) override; |
48 virtual std::string GetDefaultOutputDeviceID() OVERRIDE; | 48 virtual std::string GetDefaultOutputDeviceID() override; |
49 | 49 |
50 // Used to track destruction of input and output streams. | 50 // Used to track destruction of input and output streams. |
51 virtual void ReleaseOutputStream(AudioOutputStream* stream) OVERRIDE; | 51 virtual void ReleaseOutputStream(AudioOutputStream* stream) override; |
52 virtual void ReleaseInputStream(AudioInputStream* stream) OVERRIDE; | 52 virtual void ReleaseInputStream(AudioInputStream* stream) override; |
53 | 53 |
54 static bool GetDefaultInputDevice(AudioDeviceID* device); | 54 static bool GetDefaultInputDevice(AudioDeviceID* device); |
55 static bool GetDefaultOutputDevice(AudioDeviceID* device); | 55 static bool GetDefaultOutputDevice(AudioDeviceID* device); |
56 static bool GetDefaultDevice(AudioDeviceID* device, bool input); | 56 static bool GetDefaultDevice(AudioDeviceID* device, bool input); |
57 | 57 |
58 static bool GetDefaultOutputChannels(int* channels); | 58 static bool GetDefaultOutputChannels(int* channels); |
59 | 59 |
60 static bool GetDeviceChannels(AudioDeviceID device, | 60 static bool GetDeviceChannels(AudioDeviceID device, |
61 AudioObjectPropertyScope scope, | 61 AudioObjectPropertyScope scope, |
62 int* channels); | 62 int* channels); |
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73 // again after |kStartDelayInSecsForPowerEvents| has elapsed. If false, the | 73 // again after |kStartDelayInSecsForPowerEvents| has elapsed. If false, the |
74 // stream may be started immediately. | 74 // stream may be started immediately. |
75 enum { kStartDelayInSecsForPowerEvents = 1 }; | 75 enum { kStartDelayInSecsForPowerEvents = 1 }; |
76 bool ShouldDeferStreamStart(); | 76 bool ShouldDeferStreamStart(); |
77 | 77 |
78 protected: | 78 protected: |
79 virtual ~AudioManagerMac(); | 79 virtual ~AudioManagerMac(); |
80 | 80 |
81 virtual AudioParameters GetPreferredOutputStreamParameters( | 81 virtual AudioParameters GetPreferredOutputStreamParameters( |
82 const std::string& output_device_id, | 82 const std::string& output_device_id, |
83 const AudioParameters& input_params) OVERRIDE; | 83 const AudioParameters& input_params) override; |
84 | 84 |
85 private: | 85 private: |
86 void InitializeOnAudioThread(); | 86 void InitializeOnAudioThread(); |
87 void ShutdownOnAudioThread(); | 87 void ShutdownOnAudioThread(); |
88 | 88 |
89 int ChooseBufferSize(int output_sample_rate); | 89 int ChooseBufferSize(int output_sample_rate); |
90 | 90 |
91 // Notify streams of a device change if the default output device or its | 91 // Notify streams of a device change if the default output device or its |
92 // sample rate has changed, otherwise does nothing. | 92 // sample rate has changed, otherwise does nothing. |
93 void HandleDeviceChanges(); | 93 void HandleDeviceChanges(); |
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109 // shutdown. See ShutdownOnAudioThread() for more details. | 109 // shutdown. See ShutdownOnAudioThread() for more details. |
110 std::list<AudioInputStream*> input_streams_; | 110 std::list<AudioInputStream*> input_streams_; |
111 std::list<AudioOutputStream*> output_streams_; | 111 std::list<AudioOutputStream*> output_streams_; |
112 | 112 |
113 DISALLOW_COPY_AND_ASSIGN(AudioManagerMac); | 113 DISALLOW_COPY_AND_ASSIGN(AudioManagerMac); |
114 }; | 114 }; |
115 | 115 |
116 } // namespace media | 116 } // namespace media |
117 | 117 |
118 #endif // MEDIA_AUDIO_MAC_AUDIO_MANAGER_MAC_H_ | 118 #endif // MEDIA_AUDIO_MAC_AUDIO_MANAGER_MAC_H_ |
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