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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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 // AudioInputRendererHost serves audio related requests from audio capturer | 5 // AudioInputRendererHost serves audio related requests from audio capturer |
6 // which lives inside the render process and provide access to audio hardware. | 6 // which lives inside the render process and provide access to audio hardware. |
7 // | 7 // |
8 // Create stream sequence (AudioInputController = AIC): | 8 // Create stream sequence (AudioInputController = AIC): |
9 // | 9 // |
10 // AudioInputHostMsg_CreateStream -> OnCreateStream -> AIC::CreateLowLatency -> | 10 // AudioInputHostMsg_CreateStream -> OnCreateStream -> AIC::CreateLowLatency -> |
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92 // The synchronous writer to be used by the controller. We have the | 92 // The synchronous writer to be used by the controller. We have the |
93 // ownership of the writer. | 93 // ownership of the writer. |
94 scoped_ptr<media::AudioInputController::SyncWriter> writer; | 94 scoped_ptr<media::AudioInputController::SyncWriter> writer; |
95 | 95 |
96 // Set to true after we called Close() for the controller. | 96 // Set to true after we called Close() for the controller. |
97 bool pending_close; | 97 bool pending_close; |
98 }; | 98 }; |
99 | 99 |
100 // Called from UI thread from the owner of this object. | 100 // Called from UI thread from the owner of this object. |
101 explicit AudioInputRendererHost( | 101 explicit AudioInputRendererHost( |
102 const content::ResourceContext* resource_context); | 102 content::ResourceContext* resource_context); |
103 | 103 |
104 // content::BrowserMessageFilter implementation. | 104 // content::BrowserMessageFilter implementation. |
105 virtual void OnChannelClosing() OVERRIDE; | 105 virtual void OnChannelClosing() OVERRIDE; |
106 virtual void OnDestruct() const OVERRIDE; | 106 virtual void OnDestruct() const OVERRIDE; |
107 virtual bool OnMessageReceived(const IPC::Message& message, | 107 virtual bool OnMessageReceived(const IPC::Message& message, |
108 bool* message_was_ok) OVERRIDE; | 108 bool* message_was_ok) OVERRIDE; |
109 | 109 |
110 // AudioInputController::EventHandler implementation. | 110 // AudioInputController::EventHandler implementation. |
111 virtual void OnCreated(media::AudioInputController* controller) OVERRIDE; | 111 virtual void OnCreated(media::AudioInputController* controller) OVERRIDE; |
112 virtual void OnRecording(media::AudioInputController* controller) OVERRIDE; | 112 virtual void OnRecording(media::AudioInputController* controller) OVERRIDE; |
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194 // Search for a AudioEntry having the reference to |controller|. | 194 // Search for a AudioEntry having the reference to |controller|. |
195 // This method is used to look up an AudioEntry after a controller | 195 // This method is used to look up an AudioEntry after a controller |
196 // event is received. | 196 // event is received. |
197 AudioEntry* LookupByController(media::AudioInputController* controller); | 197 AudioEntry* LookupByController(media::AudioInputController* controller); |
198 | 198 |
199 // A helper method to look up a session identified by |stream_id|. | 199 // A helper method to look up a session identified by |stream_id|. |
200 // Returns 0 if not found. | 200 // Returns 0 if not found. |
201 int LookupSessionById(int stream_id); | 201 int LookupSessionById(int stream_id); |
202 | 202 |
203 // Used to get an instance of AudioInputDeviceManager. | 203 // Used to get an instance of AudioInputDeviceManager. |
204 const content::ResourceContext* resource_context_; | 204 content::ResourceContext* resource_context_; |
205 | 205 |
206 // A map of stream IDs to audio sources. | 206 // A map of stream IDs to audio sources. |
207 typedef std::map<int, AudioEntry*> AudioEntryMap; | 207 typedef std::map<int, AudioEntry*> AudioEntryMap; |
208 AudioEntryMap audio_entries_; | 208 AudioEntryMap audio_entries_; |
209 | 209 |
210 // A map of session IDs to audio session sources. | 210 // A map of session IDs to audio session sources. |
211 typedef std::map<int, int> SessionEntryMap; | 211 typedef std::map<int, int> SessionEntryMap; |
212 SessionEntryMap session_entries_; | 212 SessionEntryMap session_entries_; |
213 | 213 |
214 DISALLOW_COPY_AND_ASSIGN(AudioInputRendererHost); | 214 DISALLOW_COPY_AND_ASSIGN(AudioInputRendererHost); |
215 }; | 215 }; |
216 | 216 |
217 #endif // CONTENT_BROWSER_RENDERER_HOST_MEDIA_AUDIO_INPUT_RENDERER_HOST_H_ | 217 #endif // CONTENT_BROWSER_RENDERER_HOST_MEDIA_AUDIO_INPUT_RENDERER_HOST_H_ |
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