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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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