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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 // MediaStreamManager is used to open/enumerate media capture devices (video | 5 // MediaStreamManager is used to open/enumerate media capture devices (video |
6 // supported now). Call flow: | 6 // supported now). Call flow: |
7 // 1. GenerateStream is called when a render process wants to use a capture | 7 // 1. GenerateStream is called when a render process wants to use a capture |
8 // device. | 8 // device. |
9 // 2. MediaStreamManager will ask MediaStreamDeviceSettings for permission to | 9 // 2. MediaStreamManager will ask MediaStreamDeviceSettings for permission to |
10 // use devices and for which device to use. | 10 // use devices and for which device to use. |
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28 | 28 |
29 #include "base/basictypes.h" | 29 #include "base/basictypes.h" |
30 #include "base/memory/scoped_ptr.h" | 30 #include "base/memory/scoped_ptr.h" |
31 #include "base/memory/ref_counted.h" | 31 #include "base/memory/ref_counted.h" |
32 #include "base/supports_user_data.h" | 32 #include "base/supports_user_data.h" |
33 #include "content/browser/renderer_host/media/media_stream_provider.h" | 33 #include "content/browser/renderer_host/media/media_stream_provider.h" |
34 #include "content/browser/renderer_host/media/media_stream_settings_requester.h" | 34 #include "content/browser/renderer_host/media/media_stream_settings_requester.h" |
35 #include "content/common/media/media_stream_options.h" | 35 #include "content/common/media/media_stream_options.h" |
36 #include "content/common/content_export.h" | 36 #include "content/common/content_export.h" |
37 | 37 |
| 38 class AudioManager; |
| 39 |
38 namespace content { | 40 namespace content { |
39 class ResourceContext; | 41 class ResourceContext; |
40 } | 42 } |
41 | 43 |
42 namespace media { | |
43 class AudioManager; | |
44 } | |
45 | |
46 namespace media_stream { | 44 namespace media_stream { |
47 | 45 |
48 class AudioInputDeviceManager; | 46 class AudioInputDeviceManager; |
49 class MediaStreamDeviceSettings; | 47 class MediaStreamDeviceSettings; |
50 class MediaStreamRequester; | 48 class MediaStreamRequester; |
51 class VideoCaptureManager; | 49 class VideoCaptureManager; |
52 | 50 |
53 // MediaStreamManager is used to generate and close new media devices, not to | 51 // MediaStreamManager is used to generate and close new media devices, not to |
54 // start the media flow. | 52 // start the media flow. |
55 // The classes requesting new media streams are answered using | 53 // The classes requesting new media streams are answered using |
56 // MediaStreamManager::Listener. | 54 // MediaStreamManager::Listener. |
57 class CONTENT_EXPORT MediaStreamManager | 55 class CONTENT_EXPORT MediaStreamManager |
58 : public MediaStreamProviderListener, | 56 : public MediaStreamProviderListener, |
59 public SettingsRequester, | 57 public SettingsRequester, |
60 public base::SupportsUserData::Data { | 58 public base::SupportsUserData::Data { |
61 public: | 59 public: |
62 // Returns the MediaStreamManager for the given ResourceContext. If it hasn't | 60 // Returns the MediaStreamManager for the given ResourceContext. If it hasn't |
63 // been created yet, it will be constructed with the given AudioManager. | 61 // been created yet, it will be constructed with the given AudioManager. |
64 static MediaStreamManager* GetForResourceContext( | 62 static MediaStreamManager* GetForResourceContext( |
65 content::ResourceContext* resource_context, | 63 content::ResourceContext* resource_context, |
66 media::AudioManager* audio_manager); | 64 AudioManager* audio_manager); |
67 | 65 |
68 explicit MediaStreamManager(media::AudioManager* audio_manager); | 66 explicit MediaStreamManager(AudioManager* audio_manager); |
69 virtual ~MediaStreamManager(); | 67 virtual ~MediaStreamManager(); |
70 | 68 |
71 // Used to access VideoCaptureManager. | 69 // Used to access VideoCaptureManager. |
72 VideoCaptureManager* video_capture_manager(); | 70 VideoCaptureManager* video_capture_manager(); |
73 | 71 |
74 // Used to access AudioInputDeviceManager. | 72 // Used to access AudioInputDeviceManager. |
75 AudioInputDeviceManager* audio_input_device_manager(); | 73 AudioInputDeviceManager* audio_input_device_manager(); |
76 | 74 |
77 // GenerateStream opens new media devices according to |components|. The | 75 // GenerateStream opens new media devices according to |components|. The |
78 // request is identified using |label|, which is pointing to an already | 76 // request is identified using |label|, which is pointing to an already |
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146 scoped_refptr<VideoCaptureManager> video_capture_manager_; | 144 scoped_refptr<VideoCaptureManager> video_capture_manager_; |
147 scoped_refptr<AudioInputDeviceManager> audio_input_device_manager_; | 145 scoped_refptr<AudioInputDeviceManager> audio_input_device_manager_; |
148 | 146 |
149 // Keeps track of device types currently being enumerated to not enumerate | 147 // Keeps track of device types currently being enumerated to not enumerate |
150 // when not necessary. | 148 // when not necessary. |
151 std::vector<bool> enumeration_in_progress_; | 149 std::vector<bool> enumeration_in_progress_; |
152 | 150 |
153 // All non-closed request. | 151 // All non-closed request. |
154 typedef std::map<std::string, DeviceRequest> DeviceRequests; | 152 typedef std::map<std::string, DeviceRequest> DeviceRequests; |
155 DeviceRequests requests_; | 153 DeviceRequests requests_; |
156 media::AudioManager* audio_manager_; | 154 AudioManager* audio_manager_; |
157 | 155 |
158 DISALLOW_COPY_AND_ASSIGN(MediaStreamManager); | 156 DISALLOW_COPY_AND_ASSIGN(MediaStreamManager); |
159 }; | 157 }; |
160 | 158 |
161 } // namespace media_stream | 159 } // namespace media_stream |
162 | 160 |
163 #endif // CONTENT_BROWSER_RENDERER_HOST_MEDIA_MEDIA_STREAM_MANAGER_H_ | 161 #endif // CONTENT_BROWSER_RENDERER_HOST_MEDIA_MEDIA_STREAM_MANAGER_H_ |
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