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Side by Side Diff: media/audio/audio_output_controller.h

Issue 66183002: Replace MessageLoopProxy with SingleThreadTaskRunner for the rest of media/. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: fix win and audio tests Created 6 years, 11 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 #ifndef MEDIA_AUDIO_AUDIO_OUTPUT_CONTROLLER_H_ 5 #ifndef MEDIA_AUDIO_AUDIO_OUTPUT_CONTROLLER_H_
6 #define MEDIA_AUDIO_AUDIO_OUTPUT_CONTROLLER_H_ 6 #define MEDIA_AUDIO_AUDIO_OUTPUT_CONTROLLER_H_
7 7
8 #include "base/atomic_ref_count.h" 8 #include "base/atomic_ref_count.h"
9 #include "base/callback.h" 9 #include "base/callback.h"
10 #include "base/cancelable_callback.h" 10 #include "base/cancelable_callback.h"
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254 // OnMoreIOData() method, and only when it is valid to do so. This is for 254 // OnMoreIOData() method, and only when it is valid to do so. This is for
255 // sanity-checking the behavior of platform implementations of 255 // sanity-checking the behavior of platform implementations of
256 // AudioOutputStream. In other words, multiple contention is not expected, 256 // AudioOutputStream. In other words, multiple contention is not expected,
257 // nor in the design here. 257 // nor in the design here.
258 base::AtomicRefCount num_allowed_io_; 258 base::AtomicRefCount num_allowed_io_;
259 259
260 // SyncReader is used only in low latency mode for synchronous reading. 260 // SyncReader is used only in low latency mode for synchronous reading.
261 SyncReader* const sync_reader_; 261 SyncReader* const sync_reader_;
262 262
263 // The message loop of audio manager thread that this object runs on. 263 // The message loop of audio manager thread that this object runs on.
264 const scoped_refptr<base::MessageLoopProxy> message_loop_; 264 const scoped_refptr<base::SingleThreadTaskRunner> message_loop_;
265 265
266 #if defined(AUDIO_POWER_MONITORING) 266 #if defined(AUDIO_POWER_MONITORING)
267 // Scans audio samples from OnMoreIOData() as input to compute power levels. 267 // Scans audio samples from OnMoreIOData() as input to compute power levels.
268 AudioPowerMonitor power_monitor_; 268 AudioPowerMonitor power_monitor_;
269 269
270 // Periodic callback to report power levels during playback. 270 // Periodic callback to report power levels during playback.
271 base::CancelableClosure power_poll_callback_; 271 base::CancelableClosure power_poll_callback_;
272 #endif 272 #endif
273 273
274 // Flags when we've asked for a stream to start but it never did. 274 // Flags when we've asked for a stream to start but it never did.
275 base::AtomicRefCount on_more_io_data_called_; 275 base::AtomicRefCount on_more_io_data_called_;
276 scoped_ptr<base::OneShotTimer<AudioOutputController> > wedge_timer_; 276 scoped_ptr<base::OneShotTimer<AudioOutputController> > wedge_timer_;
277 277
278 DISALLOW_COPY_AND_ASSIGN(AudioOutputController); 278 DISALLOW_COPY_AND_ASSIGN(AudioOutputController);
279 }; 279 };
280 280
281 } // namespace media 281 } // namespace media
282 282
283 #endif // MEDIA_AUDIO_AUDIO_OUTPUT_CONTROLLER_H_ 283 #endif // MEDIA_AUDIO_AUDIO_OUTPUT_CONTROLLER_H_
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