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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 MediaStreamUIController for permission to | 9 // 2. MediaStreamManager will ask MediaStreamUIController 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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74 virtual ~MediaStreamManager(); | 74 virtual ~MediaStreamManager(); |
75 | 75 |
76 // Used to access VideoCaptureManager. | 76 // Used to access VideoCaptureManager. |
77 VideoCaptureManager* video_capture_manager(); | 77 VideoCaptureManager* video_capture_manager(); |
78 | 78 |
79 // Used to access AudioInputDeviceManager. | 79 // Used to access AudioInputDeviceManager. |
80 AudioInputDeviceManager* audio_input_device_manager(); | 80 AudioInputDeviceManager* audio_input_device_manager(); |
81 | 81 |
82 // Creates a new media access request which is identified by a unique string | 82 // Creates a new media access request which is identified by a unique string |
83 // that's returned to the caller. This will trigger the infobar and ask users | 83 // that's returned to the caller. This will trigger the infobar and ask users |
84 // for access to the device. |render_process_id| and |render_view_id| refer | 84 // for access to the device. |render_process_id| and |render_frame_id| are |
85 // to the view where the infobar will appear to the user. |callback| is | 85 // used to determine where the infobar will appear to the user. |callback| is |
86 // used to send the selected device to the clients. An empty list of device | 86 // used to send the selected device to the clients. An empty list of device |
87 // will be returned if the users deny the access. | 87 // will be returned if the users deny the access. |
88 std::string MakeMediaAccessRequest( | 88 std::string MakeMediaAccessRequest( |
89 int render_process_id, | 89 int render_process_id, |
90 int render_view_id, | 90 int render_frame_id, |
91 int page_request_id, | 91 int page_request_id, |
92 const StreamOptions& options, | 92 const StreamOptions& options, |
93 const GURL& security_origin, | 93 const GURL& security_origin, |
94 const MediaRequestResponseCallback& callback); | 94 const MediaRequestResponseCallback& callback); |
95 | 95 |
96 // GenerateStream opens new media devices according to |components|. It | 96 // GenerateStream opens new media devices according to |components|. It |
97 // creates a new request which is identified by a unique string that's | 97 // creates a new request which is identified by a unique string that's |
98 // returned to the caller. |render_process_id| and |render_view_id| refer to | 98 // returned to the caller. |render_process_id| and |render_frame_id| are used |
99 // the view where the infobar will appear to the user. | 99 // to determine where the infobar will appear to the user. |
100 void GenerateStream(MediaStreamRequester* requester, | 100 void GenerateStream(MediaStreamRequester* requester, |
101 int render_process_id, | 101 int render_process_id, |
102 int render_view_id, | 102 int render_frame_id, |
103 const ResourceContext::SaltCallback& sc, | 103 const ResourceContext::SaltCallback& sc, |
104 int page_request_id, | 104 int page_request_id, |
105 const StreamOptions& components, | 105 const StreamOptions& components, |
106 const GURL& security_origin, | 106 const GURL& security_origin, |
107 bool user_gesture); | 107 bool user_gesture); |
108 | 108 |
109 void CancelRequest(int render_process_id, | 109 void CancelRequest(int render_process_id, |
110 int render_view_id, | 110 int render_frame_id, |
111 int page_request_id); | 111 int page_request_id); |
112 | 112 |
113 // Cancel an open request identified by |label|. | 113 // Cancel an open request identified by |label|. |
114 virtual void CancelRequest(const std::string& label); | 114 virtual void CancelRequest(const std::string& label); |
115 | 115 |
116 // Cancel all requests for the given |render_process_id|. | 116 // Cancel all requests for the given |render_process_id|. |
117 void CancelAllRequests(int render_process_id); | 117 void CancelAllRequests(int render_process_id); |
118 | 118 |
119 // Closes the stream device for a certain render view. The stream must have | 119 // Closes the stream device for a certain render frame. The stream must have |
120 // been opened by a call to GenerateStream. | 120 // been opened by a call to GenerateStream. |
121 void StopStreamDevice(int render_process_id, | 121 void StopStreamDevice(int render_process_id, |
122 int render_view_id, | 122 int render_frame_id, |
123 const std::string& device_id); | 123 const std::string& device_id); |
124 | 124 |
125 // Gets a list of devices of |type|, which must be MEDIA_DEVICE_AUDIO_CAPTURE | 125 // Gets a list of devices of |type|, which must be MEDIA_DEVICE_AUDIO_CAPTURE |
126 // or MEDIA_DEVICE_VIDEO_CAPTURE. | 126 // or MEDIA_DEVICE_VIDEO_CAPTURE. |
127 // The request is identified using the string returned to the caller. | 127 // The request is identified using the string returned to the caller. |
128 // When the |requester| is NULL, MediaStreamManager will enumerate both audio | 128 // When the |requester| is NULL, MediaStreamManager will enumerate both audio |
129 // and video devices and also start monitoring device changes, such as | 129 // and video devices and also start monitoring device changes, such as |
130 // plug/unplug. The new device lists will be delivered via media observer to | 130 // plug/unplug. The new device lists will be delivered via media observer to |
131 // MediaCaptureDevicesDispatcher. | 131 // MediaCaptureDevicesDispatcher. |
132 // If |have_permission| is false, we remove the device label from the result. | 132 // If |have_permission| is false, we remove the device label from the result. |
133 virtual std::string EnumerateDevices(MediaStreamRequester* requester, | 133 virtual std::string EnumerateDevices(MediaStreamRequester* requester, |
134 int render_process_id, | 134 int render_process_id, |
135 int render_view_id, | 135 int render_frame_id, |
136 const ResourceContext::SaltCallback& sc, | 136 const ResourceContext::SaltCallback& sc, |
137 int page_request_id, | 137 int page_request_id, |
138 MediaStreamType type, | 138 MediaStreamType type, |
139 const GURL& security_origin, | 139 const GURL& security_origin, |
140 bool have_permission); | 140 bool have_permission); |
141 | 141 |
142 // Open a device identified by |device_id|. |type| must be either | 142 // Open a device identified by |device_id|. |type| must be either |
143 // MEDIA_DEVICE_AUDIO_CAPTURE or MEDIA_DEVICE_VIDEO_CAPTURE. | 143 // MEDIA_DEVICE_AUDIO_CAPTURE or MEDIA_DEVICE_VIDEO_CAPTURE. |
144 // The request is identified using string returned to the caller. | 144 // The request is identified using string returned to the caller. |
145 void OpenDevice(MediaStreamRequester* requester, | 145 void OpenDevice(MediaStreamRequester* requester, |
146 int render_process_id, | 146 int render_process_id, |
147 int render_view_id, | 147 int render_frame_id, |
148 const ResourceContext::SaltCallback& sc, | 148 const ResourceContext::SaltCallback& sc, |
149 int page_request_id, | 149 int page_request_id, |
150 const std::string& device_id, | 150 const std::string& device_id, |
151 MediaStreamType type, | 151 MediaStreamType type, |
152 const GURL& security_origin); | 152 const GURL& security_origin); |
153 | 153 |
154 // Finds and returns the device id corresponding to the given | 154 // Finds and returns the device id corresponding to the given |
155 // |source_id|. Returns true if there was a raw device id that matched the | 155 // |source_id|. Returns true if there was a raw device id that matched the |
156 // given |source_id|, false if nothing matched it. | 156 // given |source_id|, false if nothing matched it. |
157 bool TranslateSourceIdToDeviceId( | 157 bool TranslateSourceIdToDeviceId( |
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294 // StreamOptions::Constraints for requested tab capture IDs. | 294 // StreamOptions::Constraints for requested tab capture IDs. |
295 bool SetupTabCaptureRequest(DeviceRequest* request); | 295 bool SetupTabCaptureRequest(DeviceRequest* request); |
296 // Prepare |request| of type MEDIA_LOOPBACK_AUDIO_CAPTURE and/or | 296 // Prepare |request| of type MEDIA_LOOPBACK_AUDIO_CAPTURE and/or |
297 // MEDIA_DESKTOP_VIDEO_CAPTURE for being posted to the UI by parsing | 297 // MEDIA_DESKTOP_VIDEO_CAPTURE for being posted to the UI by parsing |
298 // StreamOptions::Constraints for the requested desktop ID. | 298 // StreamOptions::Constraints for the requested desktop ID. |
299 bool SetupScreenCaptureRequest(DeviceRequest* request); | 299 bool SetupScreenCaptureRequest(DeviceRequest* request); |
300 // Called when a request has been setup and devices have been enumerated if | 300 // Called when a request has been setup and devices have been enumerated if |
301 // needed. | 301 // needed. |
302 void PostRequestToUI(const std::string& label, DeviceRequest* request); | 302 void PostRequestToUI(const std::string& label, DeviceRequest* request); |
303 // Returns true if a device with |device_id| has already been requested with | 303 // Returns true if a device with |device_id| has already been requested with |
304 // a render procecss_id and render_view_id and type equal to the the values | 304 // a render procecss_id and render_frame_id and type equal to the the values |
305 // in |request|. If it has been requested, |device_info| contain information | 305 // in |request|. If it has been requested, |device_info| contain information |
306 // about the device. | 306 // about the device. |
307 bool FindExistingRequestedDeviceInfo( | 307 bool FindExistingRequestedDeviceInfo( |
308 const DeviceRequest& new_request, | 308 const DeviceRequest& new_request, |
309 const MediaStreamDevice& new_device_info, | 309 const MediaStreamDevice& new_device_info, |
310 StreamDeviceInfo* existing_device_info, | 310 StreamDeviceInfo* existing_device_info, |
311 MediaRequestState* existing_request_state) const; | 311 MediaRequestState* existing_request_state) const; |
312 | 312 |
313 void FinalizeGenerateStream(const std::string& label, | 313 void FinalizeGenerateStream(const std::string& label, |
314 DeviceRequest* request); | 314 DeviceRequest* request); |
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393 | 393 |
394 bool use_fake_ui_; | 394 bool use_fake_ui_; |
395 scoped_ptr<FakeMediaStreamUIProxy> fake_ui_; | 395 scoped_ptr<FakeMediaStreamUIProxy> fake_ui_; |
396 | 396 |
397 DISALLOW_COPY_AND_ASSIGN(MediaStreamManager); | 397 DISALLOW_COPY_AND_ASSIGN(MediaStreamManager); |
398 }; | 398 }; |
399 | 399 |
400 } // namespace content | 400 } // namespace content |
401 | 401 |
402 #endif // CONTENT_BROWSER_RENDERER_HOST_MEDIA_MEDIA_STREAM_MANAGER_H_ | 402 #endif // CONTENT_BROWSER_RENDERER_HOST_MEDIA_MEDIA_STREAM_MANAGER_H_ |
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