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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 <map> | 8 #include <map> |
9 #include <string> | 9 #include <string> |
10 #include <utility> | 10 #include <utility> |
11 | 11 |
12 #include "base/atomic_ref_count.h" | 12 #include "base/atomic_ref_count.h" |
13 #include "base/compiler_specific.h" | 13 #include "base/compiler_specific.h" |
14 #include "base/memory/scoped_ptr.h" | 14 #include "base/memory/scoped_ptr.h" |
15 #include "base/observer_list.h" | 15 #include "base/observer_list.h" |
16 #include "base/synchronization/lock.h" | 16 #include "base/synchronization/lock.h" |
17 #include "media/audio/audio_manager.h" | 17 #include "media/audio/audio_manager.h" |
18 | 18 |
19 #if defined(OS_WIN) | 19 #if defined(OS_WIN) |
20 #include "base/win/scoped_com_initializer.h" | 20 #include "base/win/scoped_com_initializer.h" |
21 #endif | 21 #endif |
22 | 22 |
23 #if defined(OS_ANDROID) | |
24 #include "base/android/jni_android.h" | |
25 #endif | |
26 | |
27 namespace base { | 23 namespace base { |
28 class Thread; | 24 class Thread; |
29 } | 25 } |
30 | 26 |
31 namespace media { | 27 namespace media { |
32 | 28 |
33 class AudioOutputDispatcher; | 29 class AudioOutputDispatcher; |
34 | 30 |
35 // AudioManagerBase provides AudioManager functions common for all platforms. | 31 // AudioManagerBase provides AudioManager functions common for all platforms. |
36 class MEDIA_EXPORT AudioManagerBase : public AudioManager { | 32 class MEDIA_EXPORT AudioManagerBase : public AudioManager { |
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90 // Listeners will be notified on the AudioManager::GetMessageLoop() loop. | 86 // Listeners will be notified on the AudioManager::GetMessageLoop() loop. |
91 virtual void AddOutputDeviceChangeListener( | 87 virtual void AddOutputDeviceChangeListener( |
92 AudioDeviceListener* listener) OVERRIDE; | 88 AudioDeviceListener* listener) OVERRIDE; |
93 virtual void RemoveOutputDeviceChangeListener( | 89 virtual void RemoveOutputDeviceChangeListener( |
94 AudioDeviceListener* listener) OVERRIDE; | 90 AudioDeviceListener* listener) OVERRIDE; |
95 | 91 |
96 virtual AudioParameters GetDefaultOutputStreamParameters() OVERRIDE; | 92 virtual AudioParameters GetDefaultOutputStreamParameters() OVERRIDE; |
97 virtual AudioParameters GetInputStreamParameters( | 93 virtual AudioParameters GetInputStreamParameters( |
98 const std::string& device_id) OVERRIDE; | 94 const std::string& device_id) OVERRIDE; |
99 | 95 |
100 #if defined(OS_ANDROID) | |
101 static bool RegisterAudioManager(JNIEnv* env); | |
102 #endif | |
103 | |
104 protected: | 96 protected: |
105 AudioManagerBase(); | 97 AudioManagerBase(); |
106 | 98 |
107 // TODO(dalecurtis): This must change to map both input and output parameters | 99 // TODO(dalecurtis): This must change to map both input and output parameters |
108 // to a single dispatcher, otherwise on a device state change we'll just get | 100 // to a single dispatcher, otherwise on a device state change we'll just get |
109 // the exact same invalid dispatcher. | 101 // the exact same invalid dispatcher. |
110 typedef std::map<std::pair<AudioParameters, AudioParameters>, | 102 typedef std::map<std::pair<AudioParameters, AudioParameters>, |
111 scoped_refptr<AudioOutputDispatcher> > | 103 scoped_refptr<AudioOutputDispatcher> > |
112 AudioOutputDispatchersMap; | 104 AudioOutputDispatchersMap; |
113 | 105 |
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133 const AudioParameters& input_params) = 0; | 125 const AudioParameters& input_params) = 0; |
134 | 126 |
135 // Map of cached AudioOutputDispatcher instances. Must only be touched | 127 // Map of cached AudioOutputDispatcher instances. Must only be touched |
136 // from the audio thread (no locking). | 128 // from the audio thread (no locking). |
137 AudioOutputDispatchersMap output_dispatchers_; | 129 AudioOutputDispatchersMap output_dispatchers_; |
138 | 130 |
139 private: | 131 private: |
140 // Called by Shutdown(). | 132 // Called by Shutdown(). |
141 void ShutdownOnAudioThread(); | 133 void ShutdownOnAudioThread(); |
142 | 134 |
143 void SetAudioMode(int mode); | |
144 | |
145 // Counts the number of active input streams to find out if something else | 135 // Counts the number of active input streams to find out if something else |
146 // is currently recording in Chrome. | 136 // is currently recording in Chrome. |
147 base::AtomicRefCount num_active_input_streams_; | 137 base::AtomicRefCount num_active_input_streams_; |
148 | 138 |
149 // Max number of open output streams, modified by | 139 // Max number of open output streams, modified by |
150 // SetMaxOutputStreamsAllowed(). | 140 // SetMaxOutputStreamsAllowed(). |
151 int max_num_output_streams_; | 141 int max_num_output_streams_; |
152 | 142 |
153 // Max number of open input streams. | 143 // Max number of open input streams. |
154 int max_num_input_streams_; | 144 int max_num_input_streams_; |
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170 // tasks which run on the audio thread even after Shutdown() has been started | 160 // tasks which run on the audio thread even after Shutdown() has been started |
171 // and GetMessageLoop() starts returning NULL. | 161 // and GetMessageLoop() starts returning NULL. |
172 scoped_refptr<base::MessageLoopProxy> message_loop_; | 162 scoped_refptr<base::MessageLoopProxy> message_loop_; |
173 | 163 |
174 DISALLOW_COPY_AND_ASSIGN(AudioManagerBase); | 164 DISALLOW_COPY_AND_ASSIGN(AudioManagerBase); |
175 }; | 165 }; |
176 | 166 |
177 } // namespace media | 167 } // namespace media |
178 | 168 |
179 #endif // MEDIA_AUDIO_AUDIO_MANAGER_BASE_H_ | 169 #endif // MEDIA_AUDIO_AUDIO_MANAGER_BASE_H_ |
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