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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 #include "media/audio/audio_output_controller.h" | 5 #include "media/audio/audio_output_controller.h" |
6 | 6 |
7 #include "base/bind.h" | 7 #include "base/bind.h" |
8 #include "base/debug/trace_event.h" | 8 #include "base/debug/trace_event.h" |
9 #include "base/message_loop/message_loop.h" | 9 #include "base/message_loop/message_loop.h" |
10 #include "base/metrics/histogram.h" | 10 #include "base/metrics/histogram.h" |
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191 #if defined(AUDIO_POWER_MONITORING) | 191 #if defined(AUDIO_POWER_MONITORING) |
192 power_monitor_.Reset(); | 192 power_monitor_.Reset(); |
193 power_poll_callback_.Reset( | 193 power_poll_callback_.Reset( |
194 base::Bind(&AudioOutputController::ReportPowerMeasurementPeriodically, | 194 base::Bind(&AudioOutputController::ReportPowerMeasurementPeriodically, |
195 this)); | 195 this)); |
196 // Run the callback to send an initial notification that we're starting in | 196 // Run the callback to send an initial notification that we're starting in |
197 // silence, and to schedule periodic callbacks. | 197 // silence, and to schedule periodic callbacks. |
198 power_poll_callback_.callback().Run(); | 198 power_poll_callback_.callback().Run(); |
199 #endif | 199 #endif |
200 | 200 |
| 201 on_more_io_data_called_ = 0; |
| 202 AllowEntryToOnMoreIOData(); |
| 203 stream_->Start(this); |
| 204 |
201 // For UMA tracking purposes, start the wedge detection timer. This allows us | 205 // For UMA tracking purposes, start the wedge detection timer. This allows us |
202 // to record statistics about the number of wedged playbacks in the field. | 206 // to record statistics about the number of wedged playbacks in the field. |
203 // | 207 // |
204 // WedgeCheck() will look to see if |on_more_io_data_called_| is true after | 208 // WedgeCheck() will look to see if |on_more_io_data_called_| is true after |
205 // the timeout expires. Care must be taken to ensure the wedge check delay is | 209 // the timeout expires. Care must be taken to ensure the wedge check delay is |
206 // large enough that the value isn't queried while OnMoreDataIO() is setting | 210 // large enough that the value isn't queried while OnMoreDataIO() is setting |
207 // it. | 211 // it. |
208 // | 212 // |
209 // Timer self-manages its lifetime and WedgeCheck() will only record the UMA | 213 // Timer self-manages its lifetime and WedgeCheck() will only record the UMA |
210 // statistic if state is still kPlaying. Additional Start() calls will | 214 // statistic if state is still kPlaying. Additional Start() calls will |
211 // invalidate the previous timer. | 215 // invalidate the previous timer. |
212 wedge_timer_.reset(new base::OneShotTimer<AudioOutputController>()); | 216 wedge_timer_.reset(new base::OneShotTimer<AudioOutputController>()); |
213 wedge_timer_->Start( | 217 wedge_timer_->Start( |
214 FROM_HERE, TimeDelta::FromSeconds(3), this, | 218 FROM_HERE, TimeDelta::FromSeconds(5), this, |
215 &AudioOutputController::WedgeCheck); | 219 &AudioOutputController::WedgeCheck); |
216 on_more_io_data_called_ = 0; | |
217 | |
218 AllowEntryToOnMoreIOData(); | |
219 stream_->Start(this); | |
220 | 220 |
221 handler_->OnPlaying(); | 221 handler_->OnPlaying(); |
222 } | 222 } |
223 | 223 |
224 #if defined(AUDIO_POWER_MONITORING) | 224 #if defined(AUDIO_POWER_MONITORING) |
225 void AudioOutputController::ReportPowerMeasurementPeriodically() { | 225 void AudioOutputController::ReportPowerMeasurementPeriodically() { |
226 DCHECK(message_loop_->BelongsToCurrentThread()); | 226 DCHECK(message_loop_->BelongsToCurrentThread()); |
227 const std::pair<float, bool>& reading = | 227 const std::pair<float, bool>& reading = |
228 power_monitor_.ReadCurrentPowerAndClip(); | 228 power_monitor_.ReadCurrentPowerAndClip(); |
229 handler_->OnPowerMeasured(reading.first, reading.second); | 229 handler_->OnPowerMeasured(reading.first, reading.second); |
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484 UMA_HISTOGRAM_BOOLEAN( | 484 UMA_HISTOGRAM_BOOLEAN( |
485 "Media.AudioOutputControllerPlaybackStartupSuccess", playback_success); | 485 "Media.AudioOutputControllerPlaybackStartupSuccess", playback_success); |
486 | 486 |
487 // Let the AudioManager try and fix it. | 487 // Let the AudioManager try and fix it. |
488 if (!playback_success) | 488 if (!playback_success) |
489 audio_manager_->FixWedgedAudio(); | 489 audio_manager_->FixWedgedAudio(); |
490 } | 490 } |
491 } | 491 } |
492 | 492 |
493 } // namespace media | 493 } // namespace media |
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