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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 // MessageFilter that handles video capture messages and delegates them to | 5 // MessageFilter that handles video capture messages and delegates them to |
6 // video captures. VideoCaptureMessageFilter is operated on IO thread of | 6 // video captures. VideoCaptureMessageFilter is operated on IO thread of |
7 // render process. It intercepts video capture messages and process them on | 7 // render process. It intercepts video capture messages and process them on |
8 // IO thread since these messages are time critical. | 8 // IO thread since these messages are time critical. |
9 | 9 |
10 #ifndef CONTENT_RENDERER_MEDIA_VIDEO_CAPTURE_MESSAGE_FILTER_H_ | 10 #ifndef CONTENT_RENDERER_MEDIA_VIDEO_CAPTURE_MESSAGE_FILTER_H_ |
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73 void AddDelegate(Delegate* delegate); | 73 void AddDelegate(Delegate* delegate); |
74 | 74 |
75 // Remove a delegate from the map. | 75 // Remove a delegate from the map. |
76 void RemoveDelegate(Delegate* delegate); | 76 void RemoveDelegate(Delegate* delegate); |
77 | 77 |
78 // Send a message asynchronously. | 78 // Send a message asynchronously. |
79 virtual bool Send(IPC::Message* message); | 79 virtual bool Send(IPC::Message* message); |
80 | 80 |
81 // IPC::MessageFilter override. Called on IO thread. | 81 // IPC::MessageFilter override. Called on IO thread. |
82 virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE; | 82 virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE; |
83 virtual void OnFilterAdded(IPC::Channel* channel) OVERRIDE; | 83 virtual void OnFilterAdded(IPC::Sender* sender) OVERRIDE; |
84 virtual void OnFilterRemoved() OVERRIDE; | 84 virtual void OnFilterRemoved() OVERRIDE; |
85 virtual void OnChannelClosing() OVERRIDE; | 85 virtual void OnChannelClosing() OVERRIDE; |
86 | 86 |
87 protected: | 87 protected: |
88 virtual ~VideoCaptureMessageFilter(); | 88 virtual ~VideoCaptureMessageFilter(); |
89 | 89 |
90 private: | 90 private: |
91 typedef std::map<int32, Delegate*> Delegates; | 91 typedef std::map<int32, Delegate*> Delegates; |
92 | 92 |
93 // Receive a newly created buffer from browser process. | 93 // Receive a newly created buffer from browser process. |
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127 const media::VideoCaptureFormats& formats_in_use); | 127 const media::VideoCaptureFormats& formats_in_use); |
128 | 128 |
129 // Finds the delegate associated with |device_id|, NULL if not found. | 129 // Finds the delegate associated with |device_id|, NULL if not found. |
130 Delegate* find_delegate(int device_id) const; | 130 Delegate* find_delegate(int device_id) const; |
131 | 131 |
132 // A map of device ids to delegates. | 132 // A map of device ids to delegates. |
133 Delegates delegates_; | 133 Delegates delegates_; |
134 Delegates pending_delegates_; | 134 Delegates pending_delegates_; |
135 int32 last_device_id_; | 135 int32 last_device_id_; |
136 | 136 |
137 IPC::Channel* channel_; | 137 IPC::Sender* sender_; |
138 | 138 |
139 DISALLOW_COPY_AND_ASSIGN(VideoCaptureMessageFilter); | 139 DISALLOW_COPY_AND_ASSIGN(VideoCaptureMessageFilter); |
140 }; | 140 }; |
141 | 141 |
142 } // namespace content | 142 } // namespace content |
143 | 143 |
144 #endif // CONTENT_RENDERER_MEDIA_VIDEO_CAPTURE_MESSAGE_FILTER_H_ | 144 #endif // CONTENT_RENDERER_MEDIA_VIDEO_CAPTURE_MESSAGE_FILTER_H_ |
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