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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_AUDIO_MANAGER_BASE_H_ | 5 #ifndef MEDIA_AUDIO_AUDIO_MANAGER_BASE_H_ |
6 #define MEDIA_AUDIO_AUDIO_MANAGER_BASE_H_ | 6 #define MEDIA_AUDIO_AUDIO_MANAGER_BASE_H_ |
7 | 7 |
8 #include <string> | 8 #include <string> |
9 #include <utility> | 9 #include <utility> |
10 | 10 |
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41 // AudioInputStream will be capturing audio currently being played on the | 41 // AudioInputStream will be capturing audio currently being played on the |
42 // default playback device. At the moment this feature is supported only on | 42 // default playback device. At the moment this feature is supported only on |
43 // some platforms. AudioInputStream::Intialize() will return an error on | 43 // some platforms. AudioInputStream::Intialize() will return an error on |
44 // platforms that don't support it. GetInputStreamParameters() must be used | 44 // platforms that don't support it. GetInputStreamParameters() must be used |
45 // to get the parameters of the loopback device before creating a loopback | 45 // to get the parameters of the loopback device before creating a loopback |
46 // stream, otherwise stream initialization may fail. | 46 // stream, otherwise stream initialization may fail. |
47 static const char kLoopbackInputDeviceId[]; | 47 static const char kLoopbackInputDeviceId[]; |
48 | 48 |
49 virtual ~AudioManagerBase(); | 49 virtual ~AudioManagerBase(); |
50 | 50 |
51 virtual scoped_refptr<base::SingleThreadTaskRunner> GetTaskRunner() OVERRIDE; | 51 virtual scoped_refptr<base::SingleThreadTaskRunner> GetTaskRunner() override; |
52 virtual scoped_refptr<base::SingleThreadTaskRunner> GetWorkerTaskRunner() | 52 virtual scoped_refptr<base::SingleThreadTaskRunner> GetWorkerTaskRunner() |
53 OVERRIDE; | 53 override; |
54 | 54 |
55 virtual base::string16 GetAudioInputDeviceModel() OVERRIDE; | 55 virtual base::string16 GetAudioInputDeviceModel() override; |
56 | 56 |
57 virtual void ShowAudioInputSettings() OVERRIDE; | 57 virtual void ShowAudioInputSettings() override; |
58 | 58 |
59 virtual void GetAudioInputDeviceNames( | 59 virtual void GetAudioInputDeviceNames( |
60 AudioDeviceNames* device_names) OVERRIDE; | 60 AudioDeviceNames* device_names) override; |
61 | 61 |
62 virtual void GetAudioOutputDeviceNames( | 62 virtual void GetAudioOutputDeviceNames( |
63 AudioDeviceNames* device_names) OVERRIDE; | 63 AudioDeviceNames* device_names) override; |
64 | 64 |
65 virtual AudioOutputStream* MakeAudioOutputStream( | 65 virtual AudioOutputStream* MakeAudioOutputStream( |
66 const AudioParameters& params, | 66 const AudioParameters& params, |
67 const std::string& device_id) OVERRIDE; | 67 const std::string& device_id) override; |
68 | 68 |
69 virtual AudioInputStream* MakeAudioInputStream( | 69 virtual AudioInputStream* MakeAudioInputStream( |
70 const AudioParameters& params, const std::string& device_id) OVERRIDE; | 70 const AudioParameters& params, const std::string& device_id) override; |
71 | 71 |
72 virtual AudioOutputStream* MakeAudioOutputStreamProxy( | 72 virtual AudioOutputStream* MakeAudioOutputStreamProxy( |
73 const AudioParameters& params, | 73 const AudioParameters& params, |
74 const std::string& device_id) OVERRIDE; | 74 const std::string& device_id) override; |
75 | 75 |
76 // Called internally by the audio stream when it has been closed. | 76 // Called internally by the audio stream when it has been closed. |
77 virtual void ReleaseOutputStream(AudioOutputStream* stream); | 77 virtual void ReleaseOutputStream(AudioOutputStream* stream); |
78 virtual void ReleaseInputStream(AudioInputStream* stream); | 78 virtual void ReleaseInputStream(AudioInputStream* stream); |
79 | 79 |
80 // Creates the output stream for the |AUDIO_PCM_LINEAR| format. The legacy | 80 // Creates the output stream for the |AUDIO_PCM_LINEAR| format. The legacy |
81 // name is also from |AUDIO_PCM_LINEAR|. | 81 // name is also from |AUDIO_PCM_LINEAR|. |
82 virtual AudioOutputStream* MakeLinearOutputStream( | 82 virtual AudioOutputStream* MakeLinearOutputStream( |
83 const AudioParameters& params) = 0; | 83 const AudioParameters& params) = 0; |
84 | 84 |
85 // Creates the output stream for the |AUDIO_PCM_LOW_LATENCY| format. | 85 // Creates the output stream for the |AUDIO_PCM_LOW_LATENCY| format. |
86 virtual AudioOutputStream* MakeLowLatencyOutputStream( | 86 virtual AudioOutputStream* MakeLowLatencyOutputStream( |
87 const AudioParameters& params, | 87 const AudioParameters& params, |
88 const std::string& device_id) = 0; | 88 const std::string& device_id) = 0; |
89 | 89 |
90 // Creates the input stream for the |AUDIO_PCM_LINEAR| format. The legacy | 90 // Creates the input stream for the |AUDIO_PCM_LINEAR| format. The legacy |
91 // name is also from |AUDIO_PCM_LINEAR|. | 91 // name is also from |AUDIO_PCM_LINEAR|. |
92 virtual AudioInputStream* MakeLinearInputStream( | 92 virtual AudioInputStream* MakeLinearInputStream( |
93 const AudioParameters& params, const std::string& device_id) = 0; | 93 const AudioParameters& params, const std::string& device_id) = 0; |
94 | 94 |
95 // Creates the input stream for the |AUDIO_PCM_LOW_LATENCY| format. | 95 // Creates the input stream for the |AUDIO_PCM_LOW_LATENCY| format. |
96 virtual AudioInputStream* MakeLowLatencyInputStream( | 96 virtual AudioInputStream* MakeLowLatencyInputStream( |
97 const AudioParameters& params, const std::string& device_id) = 0; | 97 const AudioParameters& params, const std::string& device_id) = 0; |
98 | 98 |
99 // Listeners will be notified on the GetTaskRunner() task runner. | 99 // Listeners will be notified on the GetTaskRunner() task runner. |
100 virtual void AddOutputDeviceChangeListener( | 100 virtual void AddOutputDeviceChangeListener( |
101 AudioDeviceListener* listener) OVERRIDE; | 101 AudioDeviceListener* listener) override; |
102 virtual void RemoveOutputDeviceChangeListener( | 102 virtual void RemoveOutputDeviceChangeListener( |
103 AudioDeviceListener* listener) OVERRIDE; | 103 AudioDeviceListener* listener) override; |
104 | 104 |
105 virtual AudioParameters GetDefaultOutputStreamParameters() OVERRIDE; | 105 virtual AudioParameters GetDefaultOutputStreamParameters() override; |
106 virtual AudioParameters GetOutputStreamParameters( | 106 virtual AudioParameters GetOutputStreamParameters( |
107 const std::string& device_id) OVERRIDE; | 107 const std::string& device_id) override; |
108 | 108 |
109 virtual AudioParameters GetInputStreamParameters( | 109 virtual AudioParameters GetInputStreamParameters( |
110 const std::string& device_id) OVERRIDE; | 110 const std::string& device_id) override; |
111 | 111 |
112 virtual std::string GetAssociatedOutputDeviceID( | 112 virtual std::string GetAssociatedOutputDeviceID( |
113 const std::string& input_device_id) OVERRIDE; | 113 const std::string& input_device_id) override; |
114 | 114 |
115 virtual scoped_ptr<AudioLog> CreateAudioLog( | 115 virtual scoped_ptr<AudioLog> CreateAudioLog( |
116 AudioLogFactory::AudioComponent component) OVERRIDE; | 116 AudioLogFactory::AudioComponent component) override; |
117 | 117 |
118 virtual void SetHasKeyboardMic() OVERRIDE; | 118 virtual void SetHasKeyboardMic() override; |
119 | 119 |
120 // Get number of input or output streams. | 120 // Get number of input or output streams. |
121 int input_stream_count() const { return num_input_streams_; } | 121 int input_stream_count() const { return num_input_streams_; } |
122 int output_stream_count() const { return num_output_streams_; } | 122 int output_stream_count() const { return num_output_streams_; } |
123 | 123 |
124 protected: | 124 protected: |
125 AudioManagerBase(AudioLogFactory* audio_log_factory); | 125 AudioManagerBase(AudioLogFactory* audio_log_factory); |
126 | 126 |
127 // Shuts down the audio thread and releases all the audio output dispatchers | 127 // Shuts down the audio thread and releases all the audio output dispatchers |
128 // on the audio thread. All audio streams should be freed before Shutdown() | 128 // on the audio thread. All audio streams should be freed before Shutdown() |
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195 | 195 |
196 // Proxy for creating AudioLog objects. | 196 // Proxy for creating AudioLog objects. |
197 AudioLogFactory* const audio_log_factory_; | 197 AudioLogFactory* const audio_log_factory_; |
198 | 198 |
199 DISALLOW_COPY_AND_ASSIGN(AudioManagerBase); | 199 DISALLOW_COPY_AND_ASSIGN(AudioManagerBase); |
200 }; | 200 }; |
201 | 201 |
202 } // namespace media | 202 } // namespace media |
203 | 203 |
204 #endif // MEDIA_AUDIO_AUDIO_MANAGER_BASE_H_ | 204 #endif // MEDIA_AUDIO_AUDIO_MANAGER_BASE_H_ |
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