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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 // AudioOutputDispatcherImpl is an implementation of AudioOutputDispatcher. | 5 // AudioOutputDispatcherImpl is an implementation of AudioOutputDispatcher. |
6 // | 6 // |
7 // To avoid opening and closing audio devices more frequently than necessary, | 7 // To avoid opening and closing audio devices more frequently than necessary, |
8 // each dispatcher has a pool of inactive physical streams. A stream is closed | 8 // each dispatcher has a pool of inactive physical streams. A stream is closed |
9 // only if it hasn't been used for a certain period of time (specified via the | 9 // only if it hasn't been used for a certain period of time (specified via the |
10 // constructor). | 10 // constructor). |
11 // | 11 // |
12 | 12 |
13 #ifndef MEDIA_AUDIO_AUDIO_OUTPUT_DISPATCHER_IMPL_H_ | 13 #ifndef MEDIA_AUDIO_AUDIO_OUTPUT_DISPATCHER_IMPL_H_ |
14 #define MEDIA_AUDIO_AUDIO_OUTPUT_DISPATCHER_IMPL_H_ | 14 #define MEDIA_AUDIO_AUDIO_OUTPUT_DISPATCHER_IMPL_H_ |
15 | 15 |
16 #include <stddef.h> | 16 #include <stddef.h> |
17 | 17 |
18 #include <map> | 18 #include <map> |
19 #include <vector> | 19 #include <vector> |
20 | 20 |
21 #include "base/macros.h" | 21 #include "base/macros.h" |
22 #include "base/memory/ref_counted.h" | 22 #include "base/memory/ref_counted.h" |
23 #include "base/timer/timer.h" | 23 #include "base/timer/timer.h" |
24 #include "media/audio/audio_io.h" | 24 #include "media/audio/audio_io.h" |
25 #include "media/audio/audio_logging.h" | 25 #include "media/audio/audio_logging.h" |
26 #include "media/audio/audio_manager.h" | 26 #include "media/audio/audio_manager.h" |
27 #include "media/audio/audio_output_dispatcher.h" | 27 #include "media/audio/audio_output_dispatcher.h" |
28 #include "media/audio/audio_parameters.h" | 28 #include "media/base/audio_parameters.h" |
29 | 29 |
30 namespace media { | 30 namespace media { |
31 | 31 |
32 class AudioOutputProxy; | 32 class AudioOutputProxy; |
33 | 33 |
34 class MEDIA_EXPORT AudioOutputDispatcherImpl : public AudioOutputDispatcher { | 34 class MEDIA_EXPORT AudioOutputDispatcherImpl : public AudioOutputDispatcher { |
35 public: | 35 public: |
36 // |close_delay| specifies delay after the stream is idle until the audio | 36 // |close_delay| specifies delay after the stream is idle until the audio |
37 // device is closed. | 37 // device is closed. |
38 AudioOutputDispatcherImpl(AudioManager* audio_manager, | 38 AudioOutputDispatcherImpl(AudioManager* audio_manager, |
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95 typedef std::map<AudioOutputStream*, int> AudioStreamIDMap; | 95 typedef std::map<AudioOutputStream*, int> AudioStreamIDMap; |
96 AudioStreamIDMap audio_stream_ids_; | 96 AudioStreamIDMap audio_stream_ids_; |
97 int audio_stream_id_; | 97 int audio_stream_id_; |
98 | 98 |
99 DISALLOW_COPY_AND_ASSIGN(AudioOutputDispatcherImpl); | 99 DISALLOW_COPY_AND_ASSIGN(AudioOutputDispatcherImpl); |
100 }; | 100 }; |
101 | 101 |
102 } // namespace media | 102 } // namespace media |
103 | 103 |
104 #endif // MEDIA_AUDIO_AUDIO_OUTPUT_DISPATCHER_IMPL_H_ | 104 #endif // MEDIA_AUDIO_AUDIO_OUTPUT_DISPATCHER_IMPL_H_ |
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