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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 #ifndef MEDIA_AUDIO_AUDIO_MANAGER_H_ | 5 #ifndef MEDIA_AUDIO_AUDIO_MANAGER_H_ |
6 #define MEDIA_AUDIO_AUDIO_MANAGER_H_ | 6 #define MEDIA_AUDIO_AUDIO_MANAGER_H_ |
7 | 7 |
8 #include <memory> | 8 #include <memory> |
9 #include <string> | 9 #include <string> |
10 | 10 |
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234 // Returns the device id of an output device that belongs to the same hardware | 234 // Returns the device id of an output device that belongs to the same hardware |
235 // as the specified input device. | 235 // as the specified input device. |
236 // If the hardware has only an input device (e.g. a webcam), the return value | 236 // If the hardware has only an input device (e.g. a webcam), the return value |
237 // will be empty (which the caller can then interpret to be the default output | 237 // will be empty (which the caller can then interpret to be the default output |
238 // device). Implementations that don't yet support this feature, must return | 238 // device). Implementations that don't yet support this feature, must return |
239 // an empty string. Must be called on the audio worker thread (see | 239 // an empty string. Must be called on the audio worker thread (see |
240 // GetWorkerTaskRunner()). | 240 // GetWorkerTaskRunner()). |
241 virtual std::string GetAssociatedOutputDeviceID( | 241 virtual std::string GetAssociatedOutputDeviceID( |
242 const std::string& input_device_id) = 0; | 242 const std::string& input_device_id) = 0; |
243 | 243 |
244 // These functions assign group ids to devices based on their device ids. | |
245 // The default implementation is an attempt to do this based on | |
246 // GetAssociatedOutputDeviceID. Must be called on the audio worker thread | |
247 // (see GetWorkerTaskRunner()). | |
Guido Urdaneta
2016/09/05 13:15:53
Actually, the comment should say GetTaskRunner() i
Max Morin
2016/09/05 13:53:56
Done.
| |
248 virtual std::string GetGroupIDOutput(const std::string& output_device_id) = 0; | |
249 virtual std::string GetGroupIDInput(const std::string& input_device_id) = 0; | |
250 | |
244 // Create a new AudioLog object for tracking the behavior for one or more | 251 // Create a new AudioLog object for tracking the behavior for one or more |
245 // instances of the given component. See AudioLogFactory for more details. | 252 // instances of the given component. See AudioLogFactory for more details. |
246 virtual std::unique_ptr<AudioLog> CreateAudioLog( | 253 virtual std::unique_ptr<AudioLog> CreateAudioLog( |
247 AudioLogFactory::AudioComponent component) = 0; | 254 AudioLogFactory::AudioComponent component) = 0; |
248 | 255 |
249 protected: | 256 protected: |
250 AudioManager(scoped_refptr<base::SingleThreadTaskRunner> task_runner, | 257 AudioManager(scoped_refptr<base::SingleThreadTaskRunner> task_runner, |
251 scoped_refptr<base::SingleThreadTaskRunner> worker_task_runner); | 258 scoped_refptr<base::SingleThreadTaskRunner> worker_task_runner); |
252 virtual ~AudioManager(); | 259 virtual ~AudioManager(); |
253 | 260 |
254 private: | 261 private: |
255 friend class base::DeleteHelper<AudioManager>; | 262 friend class base::DeleteHelper<AudioManager>; |
256 | 263 |
257 scoped_refptr<base::SingleThreadTaskRunner> task_runner_; | 264 scoped_refptr<base::SingleThreadTaskRunner> task_runner_; |
258 scoped_refptr<base::SingleThreadTaskRunner> worker_task_runner_; | 265 scoped_refptr<base::SingleThreadTaskRunner> worker_task_runner_; |
259 DISALLOW_COPY_AND_ASSIGN(AudioManager); | 266 DISALLOW_COPY_AND_ASSIGN(AudioManager); |
260 }; | 267 }; |
261 | 268 |
262 } // namespace media | 269 } // namespace media |
263 | 270 |
264 #endif // MEDIA_AUDIO_AUDIO_MANAGER_H_ | 271 #endif // MEDIA_AUDIO_AUDIO_MANAGER_H_ |
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