OLD | NEW |
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 // AudioInputDeviceManager manages the audio input devices. In particular it | 5 // AudioInputDeviceManager manages the audio input devices. In particular it |
6 // communicates with MediaStreamManager and AudioInputRendererHost on the | 6 // communicates with MediaStreamManager and AudioInputRendererHost on the |
7 // browser IO thread, handles queries like enumerate/open/close from | 7 // browser IO thread, handles queries like enumerate/open/close from |
8 // MediaStreamManager and start/stop from AudioInputRendererHost. | 8 // MediaStreamManager and start/stop from AudioInputRendererHost. |
9 | 9 // The work for enumerate/open/close is handled asynchronously on Media Stream |
10 // All the queries and work are handled on the IO thread. | 10 // device thread, while start/stop are synchronous API on IO thread. |
11 | 11 |
12 #ifndef CONTENT_BROWSER_RENDERER_HOST_MEDIA_AUDIO_INPUT_DEVICE_MANAGER_H_ | 12 #ifndef CONTENT_BROWSER_RENDERER_HOST_MEDIA_AUDIO_INPUT_DEVICE_MANAGER_H_ |
13 #define CONTENT_BROWSER_RENDERER_HOST_MEDIA_AUDIO_INPUT_DEVICE_MANAGER_H_ | 13 #define CONTENT_BROWSER_RENDERER_HOST_MEDIA_AUDIO_INPUT_DEVICE_MANAGER_H_ |
14 | 14 |
15 #include <map> | 15 #include <map> |
16 | 16 |
17 #include "base/memory/ref_counted.h" | 17 #include "base/memory/ref_counted.h" |
18 #include "base/threading/thread.h" | 18 #include "base/threading/thread.h" |
19 #include "content/browser/renderer_host/media/media_stream_provider.h" | 19 #include "content/browser/renderer_host/media/media_stream_provider.h" |
20 #include "content/common/content_export.h" | 20 #include "content/common/content_export.h" |
(...skipping 13 matching lines...) Expand all Loading... |
34 public MediaStreamProvider { | 34 public MediaStreamProvider { |
35 public: | 35 public: |
36 // Calling Start() with this kFakeOpenSessionId will open the default device, | 36 // Calling Start() with this kFakeOpenSessionId will open the default device, |
37 // even though Open() has not been called. This is used to be able to use the | 37 // even though Open() has not been called. This is used to be able to use the |
38 // AudioInputDeviceManager before MediaStream is implemented. | 38 // AudioInputDeviceManager before MediaStream is implemented. |
39 static const int kFakeOpenSessionId; | 39 static const int kFakeOpenSessionId; |
40 | 40 |
41 static const int kInvalidSessionId; | 41 static const int kInvalidSessionId; |
42 static const char kInvalidDeviceId[]; | 42 static const char kInvalidDeviceId[]; |
43 | 43 |
44 explicit AudioInputDeviceManager(media::AudioManager* audio_manager); | 44 AudioInputDeviceManager(scoped_refptr<base::MessageLoopProxy> message_loop); |
45 | 45 |
46 // MediaStreamProvider implementation, called on IO thread. | 46 // MediaStreamProvider implementation, called on IO thread. |
47 virtual void Register(MediaStreamProviderListener* listener) OVERRIDE; | 47 virtual void Register(MediaStreamProviderListener* listener) OVERRIDE; |
48 virtual void Unregister() OVERRIDE; | 48 virtual void Unregister() OVERRIDE; |
49 virtual void EnumerateDevices() OVERRIDE; | 49 virtual void EnumerateDevices() OVERRIDE; |
50 virtual int Open(const StreamDeviceInfo& device) OVERRIDE; | 50 virtual int Open(const StreamDeviceInfo& device) OVERRIDE; |
51 virtual void Close(int session_id) OVERRIDE; | 51 virtual void Close(int session_id) OVERRIDE; |
52 | 52 |
53 // Functions used by AudioInputRenderHost, called on IO thread. | 53 // Functions used by AudioInputRenderHost, called on IO thread. |
54 // Start the device referenced by the session id. | 54 // Start the device referenced by the session id. |
55 void Start(int session_id, | 55 void Start(int session_id, |
56 AudioInputDeviceManagerEventHandler* event_handler); | 56 AudioInputDeviceManagerEventHandler* event_handler); |
57 // Stop the device referenced by the session id. | 57 // Stop the device referenced by the session id. |
58 void Stop(int session_id); | 58 void Stop(int session_id); |
59 | 59 |
| 60 // Used by unit test. |
| 61 void SetAudioManagerForTesting(media::AudioManager* audio_manager); |
| 62 |
60 private: | 63 private: |
61 friend class base::RefCountedThreadSafe<AudioInputDeviceManager>; | 64 friend class base::RefCountedThreadSafe<AudioInputDeviceManager>; |
62 virtual ~AudioInputDeviceManager(); | 65 virtual ~AudioInputDeviceManager(); |
63 | 66 |
| 67 // Executed on media stream device thread. |
| 68 void EnumerateOnDeviceThread(); |
| 69 void OpenOnDeviceThread(int session_id, const StreamDeviceInfo& device); |
| 70 void CloseOnDeviceThread(int session_id); |
| 71 |
64 // Executed on IO thread to call Listener. | 72 // Executed on IO thread to call Listener. |
65 void DevicesEnumeratedOnIOThread(StreamDeviceInfoArray* devices); | 73 void DevicesEnumeratedOnIOThread(StreamDeviceInfoArray* devices); |
66 void OpenedOnIOThread(int session_id); | 74 void OpenedOnIOThread(int session_id); |
67 void ClosedOnIOThread(int session_id); | 75 void ClosedOnIOThread(int session_id); |
68 void ErrorOnIOThread(int session_id, MediaStreamProviderError error); | 76 void ErrorOnIOThread(int session_id, MediaStreamProviderError error); |
69 | 77 |
| 78 // Helpers. |
| 79 bool IsOnDeviceThread() const; |
| 80 |
| 81 // Only accessed on Browser::IO thread. |
70 MediaStreamProviderListener* listener_; | 82 MediaStreamProviderListener* listener_; |
71 int next_capture_session_id_; | 83 int next_capture_session_id_; |
72 typedef std::map<int, AudioInputDeviceManagerEventHandler*> EventHandlerMap; | 84 typedef std::map<int, AudioInputDeviceManagerEventHandler*> EventHandlerMap; |
73 EventHandlerMap event_handlers_; | 85 EventHandlerMap event_handlers_; |
| 86 |
| 87 // Only accessed from media stream device thread. |
74 typedef std::map<int, media::AudioDeviceName> AudioInputDeviceMap; | 88 typedef std::map<int, media::AudioDeviceName> AudioInputDeviceMap; |
75 AudioInputDeviceMap devices_; | 89 AudioInputDeviceMap devices_; |
76 // TODO(tommi): Is it necessary to store this as a member? | 90 |
77 media::AudioManager* audio_manager_; | 91 // The message loop of media stream device thread that this object runs on. |
| 92 scoped_refptr<base::MessageLoopProxy> message_loop_; |
| 93 |
| 94 // AudioManager for testing. |
| 95 media::AudioManager* testing_audio_manager_; |
78 | 96 |
79 DISALLOW_COPY_AND_ASSIGN(AudioInputDeviceManager); | 97 DISALLOW_COPY_AND_ASSIGN(AudioInputDeviceManager); |
80 }; | 98 }; |
81 | 99 |
82 } // namespace media_stream | 100 } // namespace media_stream |
83 | 101 |
84 #endif // CONTENT_BROWSER_RENDERER_HOST_MEDIA_AUDIO_INPUT_DEVICE_MANAGER_H_ | 102 #endif // CONTENT_BROWSER_RENDERER_HOST_MEDIA_AUDIO_INPUT_DEVICE_MANAGER_H_ |
OLD | NEW |