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

Issue 2729783003: [Mojo Video Capture] Add content_browsertest for exercising video capture (Closed)
Patch Set: incorporated miu@'s suggestions Created 3 years, 9 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 // MediaStreamProvider is used to capture media of the types defined in 5 // MediaStreamProvider is used to capture media of the types defined in
6 // MediaStreamType. There is only one MediaStreamProvider instance per media 6 // MediaStreamType. There is only one MediaStreamProvider instance per media
7 // type and a MediaStreamProvider instance can have only one registered 7 // type and a MediaStreamProvider instance can have only one registered
8 // listener. 8 // listener.
9 // The MediaStreamManager is expected to be called on Browser::IO thread and 9 // The MediaStreamManager is expected to be called on Browser::IO thread and
10 // the listener will be called on the same thread. 10 // the listener will be called on the same thread.
(...skipping 40 matching lines...) Expand 10 before | Expand all | Expand 10 after
51 }; 51 };
52 52
53 // Implemented by a manager class providing captured media. 53 // Implemented by a manager class providing captured media.
54 class CONTENT_EXPORT MediaStreamProvider 54 class CONTENT_EXPORT MediaStreamProvider
55 : public base::RefCountedThreadSafe<MediaStreamProvider> { 55 : public base::RefCountedThreadSafe<MediaStreamProvider> {
56 public: 56 public:
57 // Registers a listener. 57 // Registers a listener.
58 virtual void RegisterListener(MediaStreamProviderListener* listener) = 0; 58 virtual void RegisterListener(MediaStreamProviderListener* listener) = 0;
59 59
60 // Unregisters a previously registered listener. 60 // Unregisters a previously registered listener.
61 virtual void UnregisterListener() = 0; 61 virtual void UnregisterListener(MediaStreamProviderListener* listener) = 0;
62 62
63 // Opens the specified device. The device is not started and it is still 63 // Opens the specified device. The device is not started and it is still
64 // possible for other applications to open the device before the device is 64 // possible for other applications to open the device before the device is
65 // started. |Opened| is called when the device is opened. 65 // started. |Opened| is called when the device is opened.
66 // kInvalidMediaCaptureSessionId is returned on error. 66 // kInvalidMediaCaptureSessionId is returned on error.
67 virtual int Open(const StreamDeviceInfo& device) = 0; 67 virtual int Open(const MediaStreamDevice& device) = 0;
68 68
69 // Closes the specified device and calls |Closed| when done. 69 // Closes the specified device and calls |Closed| when done.
70 virtual void Close(int capture_session_id) = 0; 70 virtual void Close(int capture_session_id) = 0;
71 71
72 protected: 72 protected:
73 friend class base::RefCountedThreadSafe<MediaStreamProvider>; 73 friend class base::RefCountedThreadSafe<MediaStreamProvider>;
74 virtual ~MediaStreamProvider() {} 74 virtual ~MediaStreamProvider() {}
75 }; 75 };
76 76
77 } // namespace content 77 } // namespace content
78 78
79 #endif // CONTENT_BROWSER_RENDERER_HOST_MEDIA_MEDIA_STREAM_PROVIDER_H_ 79 #endif // CONTENT_BROWSER_RENDERER_HOST_MEDIA_MEDIA_STREAM_PROVIDER_H_
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