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Side by Side Diff: content/browser/renderer_host/media/video_capture_manager.h

Issue 2410383002: VideoCapture: more migration IPC-->mojo, part 6 (Closed)
Patch Set: Comment correction Created 4 years, 2 months ago
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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 // VideoCaptureManager is used to open/close, start/stop, enumerate available 5 // VideoCaptureManager is used to open/close, start/stop, enumerate available
6 // video capture devices, and manage VideoCaptureController's. 6 // video capture devices, and manage VideoCaptureController's.
7 // All functions are expected to be called from Browser::IO thread. Some helper 7 // All functions are expected to be called from Browser::IO thread. Some helper
8 // functions (*OnDeviceThread) will dispatch operations to the device thread. 8 // functions (*OnDeviceThread) will dispatch operations to the device thread.
9 // VideoCaptureManager will open OS dependent instances of VideoCaptureDevice. 9 // VideoCaptureManager will open OS dependent instances of VideoCaptureDevice.
10 // A device can only be opened once. 10 // A device can only be opened once.
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69 // 69 //
70 // If the device is not already started (i.e., no other client is currently 70 // If the device is not already started (i.e., no other client is currently
71 // capturing from this device), this call will cause a VideoCaptureController 71 // capturing from this device), this call will cause a VideoCaptureController
72 // and VideoCaptureDevice to be created, possibly asynchronously. 72 // and VideoCaptureDevice to be created, possibly asynchronously.
73 // 73 //
74 // On success, the controller is returned via calling |done_cb|, indicating 74 // On success, the controller is returned via calling |done_cb|, indicating
75 // that the client was successfully added. A NULL controller is passed to 75 // that the client was successfully added. A NULL controller is passed to
76 // the callback on failure. 76 // the callback on failure.
77 void StartCaptureForClient(media::VideoCaptureSessionId session_id, 77 void StartCaptureForClient(media::VideoCaptureSessionId session_id,
78 const media::VideoCaptureParams& capture_params, 78 const media::VideoCaptureParams& capture_params,
79 base::ProcessHandle client_render_process,
80 VideoCaptureControllerID client_id, 79 VideoCaptureControllerID client_id,
81 VideoCaptureControllerEventHandler* client_handler, 80 VideoCaptureControllerEventHandler* client_handler,
82 const DoneCB& done_cb); 81 const DoneCB& done_cb);
83 82
84 // Called by VideoCaptureHost to remove |client_handler|. If this is the last 83 // Called by VideoCaptureHost to remove |client_handler|. If this is the last
85 // client of the device, the |controller| and its VideoCaptureDevice may be 84 // client of the device, the |controller| and its VideoCaptureDevice may be
86 // destroyed. The client must not access |controller| after calling this 85 // destroyed. The client must not access |controller| after calling this
87 // function. 86 // function.
88 void StopCaptureForClient(VideoCaptureController* controller, 87 void StopCaptureForClient(VideoCaptureController* controller,
89 VideoCaptureControllerID client_id, 88 VideoCaptureControllerID client_id,
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354 // Map used by DesktopCapture. 353 // Map used by DesktopCapture.
355 std::map<media::VideoCaptureSessionId, gfx::NativeViewId> 354 std::map<media::VideoCaptureSessionId, gfx::NativeViewId>
356 notification_window_ids_; 355 notification_window_ids_;
357 356
358 DISALLOW_COPY_AND_ASSIGN(VideoCaptureManager); 357 DISALLOW_COPY_AND_ASSIGN(VideoCaptureManager);
359 }; 358 };
360 359
361 } // namespace content 360 } // namespace content
362 361
363 #endif // CONTENT_BROWSER_RENDERER_HOST_MEDIA_VIDEO_CAPTURE_MANAGER_H_ 362 #endif // CONTENT_BROWSER_RENDERER_HOST_MEDIA_VIDEO_CAPTURE_MANAGER_H_
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