15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "media/audio/audio_output_controller.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/bind.h" 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/debug/trace_event.h" 9a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles)#include "base/metrics/histogram.h" 101e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles)#include "base/task_runner_util.h" 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/threading/platform_thread.h" 12eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch#include "base/time/time.h" 132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "build/build_config.h" 1490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)#include "media/base/scoped_histogram_timer.h" 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)using base::TimeDelta; 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace media { 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2058537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)AudioOutputController::AudioOutputController( 2158537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) AudioManager* audio_manager, 2258537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) EventHandler* handler, 2358537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) const AudioParameters& params, 2458537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) const std::string& output_device_id, 2558537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) SyncReader* sync_reader) 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : audio_manager_(audio_manager), 272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) params_(params), 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) handler_(handler), 2958537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) output_device_id_(output_device_id), 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) stream_(NULL), 312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) diverting_to_stream_(NULL), 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) volume_(1.0), 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) state_(kEmpty), 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sync_reader_(sync_reader), 355d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) message_loop_(audio_manager->GetTaskRunner()), 36c2db58bd994c04d98e4ee2cd7565b71548655fe3Ben Murdoch power_monitor_( 37c2db58bd994c04d98e4ee2cd7565b71548655fe3Ben Murdoch params.sample_rate(), 3868043e1e95eeb07d5cae7aca370b26518b0867d6Torne (Richard Coles) TimeDelta::FromMilliseconds(kPowerMeasurementTimeConstantMillis)), 39f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) on_more_io_data_called_(0) { 402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(audio_manager); 412a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(handler_); 422a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(sync_reader_); 43868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) DCHECK(message_loop_.get()); 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)AudioOutputController::~AudioOutputController() { 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK_EQ(kClosed, state_); 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)scoped_refptr<AudioOutputController> AudioOutputController::Create( 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AudioManager* audio_manager, 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) EventHandler* event_handler, 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const AudioParameters& params, 5558537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) const std::string& output_device_id, 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SyncReader* sync_reader) { 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(audio_manager); 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(sync_reader); 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!params.IsValid() || !audio_manager) 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return NULL; 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) scoped_refptr<AudioOutputController> controller(new AudioOutputController( 645d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) audio_manager, event_handler, params, output_device_id, sync_reader)); 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) controller->message_loop_->PostTask(FROM_HERE, base::Bind( 662a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) &AudioOutputController::DoCreate, controller, false)); 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return controller; 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void AudioOutputController::Play() { 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) message_loop_->PostTask(FROM_HERE, base::Bind( 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) &AudioOutputController::DoPlay, this)); 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void AudioOutputController::Pause() { 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) message_loop_->PostTask(FROM_HERE, base::Bind( 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) &AudioOutputController::DoPause, this)); 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void AudioOutputController::Close(const base::Closure& closed_task) { 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(!closed_task.is_null()); 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) message_loop_->PostTaskAndReply(FROM_HERE, base::Bind( 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) &AudioOutputController::DoClose, this), closed_task); 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void AudioOutputController::SetVolume(double volume) { 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) message_loop_->PostTask(FROM_HERE, base::Bind( 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) &AudioOutputController::DoSetVolume, this, volume)); 895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 911e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles)void AudioOutputController::GetOutputDeviceId( 921e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) base::Callback<void(const std::string&)> callback) const { 931e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) base::PostTaskAndReplyWithResult( 941e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) message_loop_.get(), 951e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) FROM_HERE, 961e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) base::Bind(&AudioOutputController::DoGetOutputDeviceId, this), 971e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) callback); 981e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles)} 991e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) 1001e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles)void AudioOutputController::SwitchOutputDevice( 1011e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) const std::string& output_device_id, const base::Closure& callback) { 1021e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) message_loop_->PostTaskAndReply( 1031e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) FROM_HERE, 1041e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) base::Bind(&AudioOutputController::DoSwitchOutputDevice, this, 1051e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) output_device_id), 1061e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) callback); 1071e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles)} 1081e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) 1092a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void AudioOutputController::DoCreate(bool is_for_device_change) { 1105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(message_loop_->BelongsToCurrentThread()); 11190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) SCOPED_UMA_HISTOGRAM_TIMER("Media.AudioOutputController.CreateTime"); 112f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) TRACE_EVENT0("audio", "AudioOutputController::DoCreate"); 1135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Close() can be called before DoCreate() is executed. 1155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (state_ == kClosed) 1165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 1175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DoStopCloseAndClearStream(); // Calls RemoveOutputDeviceChangeListener(). 1192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK_EQ(kEmpty, state_); 1202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 12158537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) stream_ = diverting_to_stream_ ? 12258537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) diverting_to_stream_ : 1235d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) audio_manager_->MakeAudioOutputStreamProxy(params_, output_device_id_); 1245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!stream_) { 1255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) state_ = kError; 126c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) handler_->OnError(); 1275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 1285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!stream_->Open()) { 1312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DoStopCloseAndClearStream(); 1325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) state_ = kError; 133c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) handler_->OnError(); 1345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 1355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Everything started okay, so re-register for state change callbacks if 1382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // stream_ was created via AudioManager. 1392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (stream_ != diverting_to_stream_) 1405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) audio_manager_->AddOutputDeviceChangeListener(this); 1415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // We have successfully opened the stream. Set the initial volume. 1435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) stream_->SetVolume(volume_); 1445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Finally set the state to kCreated. 1465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) state_ = kCreated; 1475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // And then report we have been created if we haven't done so already. 1492a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (!is_for_device_change) 150c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) handler_->OnCreated(); 1515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void AudioOutputController::DoPlay() { 1545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(message_loop_->BelongsToCurrentThread()); 155868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) SCOPED_UMA_HISTOGRAM_TIMER("Media.AudioOutputController.PlayTime"); 156f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) TRACE_EVENT0("audio", "AudioOutputController::DoPlay"); 1575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // We can start from created or paused state. 1592a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (state_ != kCreated && state_ != kPaused) 1605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 1615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Ask for first packet. 1635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sync_reader_->UpdatePendingBytes(0); 1645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) state_ = kPlaying; 166ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch 1675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) stream_->Start(this); 1685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 169f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) // For UMA tracking purposes, start the wedge detection timer. This allows us 170f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) // to record statistics about the number of wedged playbacks in the field. 171f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) // 172f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) // WedgeCheck() will look to see if |on_more_io_data_called_| is true after 173f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) // the timeout expires. Care must be taken to ensure the wedge check delay is 174f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) // large enough that the value isn't queried while OnMoreDataIO() is setting 175f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) // it. 176f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) // 177f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) // Timer self-manages its lifetime and WedgeCheck() will only record the UMA 178f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) // statistic if state is still kPlaying. Additional Start() calls will 179f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) // invalidate the previous timer. 180f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) wedge_timer_.reset(new base::OneShotTimer<AudioOutputController>()); 181f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) wedge_timer_->Start( 182f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) FROM_HERE, TimeDelta::FromSeconds(5), this, 183f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) &AudioOutputController::WedgeCheck); 184f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) 185c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) handler_->OnPlaying(); 1865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1882a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void AudioOutputController::StopStream() { 1895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(message_loop_->BelongsToCurrentThread()); 1905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 191868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) if (state_ == kPlaying) { 192f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) wedge_timer_.reset(); 1935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) stream_->Stop(); 194ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch 195a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) // A stopped stream is silent, and power_montior_.Scan() is no longer being 196a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) // called; so we must reset the power monitor. 197a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) power_monitor_.Reset(); 198ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch 1992a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) state_ = kPaused; 2005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2012a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 2025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2032a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void AudioOutputController::DoPause() { 2042a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(message_loop_->BelongsToCurrentThread()); 20590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) SCOPED_UMA_HISTOGRAM_TIMER("Media.AudioOutputController.PauseTime"); 206f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) TRACE_EVENT0("audio", "AudioOutputController::DoPause"); 2075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2082a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) StopStream(); 2095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2102a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (state_ != kPaused) 2112a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return; 2122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2131e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) // Let the renderer know we've stopped. Necessary to let PPAPI clients know 2141e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) // audio has been shutdown. TODO(dalecurtis): This stinks. PPAPI should have 2151e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) // a better way to know when it should exit PPB_Audio_Shared::Run(). 216116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch sync_reader_->UpdatePendingBytes(kuint32max); 2172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 218c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) handler_->OnPaused(); 2195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void AudioOutputController::DoClose() { 2225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(message_loop_->BelongsToCurrentThread()); 22390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) SCOPED_UMA_HISTOGRAM_TIMER("Media.AudioOutputController.CloseTime"); 224f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) TRACE_EVENT0("audio", "AudioOutputController::DoClose"); 2255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (state_ != kClosed) { 2272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DoStopCloseAndClearStream(); 2285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sync_reader_->Close(); 2295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) state_ = kClosed; 2305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void AudioOutputController::DoSetVolume(double volume) { 2345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(message_loop_->BelongsToCurrentThread()); 2355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Saves the volume to a member first. We may not be able to set the volume 2375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // right away but when the stream is created we'll set the volume. 2385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) volume_ = volume; 2395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) switch (state_) { 2415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case kCreated: 2425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case kPlaying: 2435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case kPaused: 2445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) stream_->SetVolume(volume_); 2455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) break; 2465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) default: 2475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 2485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2511e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles)std::string AudioOutputController::DoGetOutputDeviceId() const { 2521e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) DCHECK(message_loop_->BelongsToCurrentThread()); 2531e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) return output_device_id_; 2541e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles)} 2551e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) 2561e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles)void AudioOutputController::DoSwitchOutputDevice( 2571e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) const std::string& output_device_id) { 2581e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) DCHECK(message_loop_->BelongsToCurrentThread()); 2591e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) 2601e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) if (state_ == kClosed) 2611e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) return; 2621e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) 263f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) if (output_device_id == output_device_id_) 264f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) return; 265f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) 2661e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) output_device_id_ = output_device_id; 2671e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) 2681e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) // If output is currently diverted, we must not call OnDeviceChange 2691e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) // since it would break the diverted setup. Once diversion is 2701e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) // finished using StopDiverting() the output will switch to the new 2711e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) // device ID. 2721e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) if (stream_ != diverting_to_stream_) 2731e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) OnDeviceChange(); 2741e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles)} 2751e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) 2762a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void AudioOutputController::DoReportError() { 2775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(message_loop_->BelongsToCurrentThread()); 2785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (state_ != kClosed) 279c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) handler_->OnError(); 2805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int AudioOutputController::OnMoreData(AudioBus* dest, 2835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AudioBuffersState buffers_state) { 284cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) TRACE_EVENT0("audio", "AudioOutputController::OnMoreData"); 2855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 286f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) // Indicate that we haven't wedged (at least not indefinitely, WedgeCheck() 287f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) // may have already fired if OnMoreIOData() took an abnormal amount of time). 288f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) // Since this thread is the only writer of |on_more_io_data_called_| once the 289f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) // thread starts, its safe to compare and then increment. 290f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) if (base::AtomicRefCountIsZero(&on_more_io_data_called_)) 291f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) base::AtomicRefCountInc(&on_more_io_data_called_); 292f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) 293cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) sync_reader_->Read(dest); 2942a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2951e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) const int frames = dest->frames(); 2965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sync_reader_->UpdatePendingBytes( 2975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) buffers_state.total_bytes() + frames * params_.GetBytesPerFrame()); 2982a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2991320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci if (will_monitor_audio_levels()) 3001320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci power_monitor_.Scan(*dest, frames); 301c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 3025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return frames; 3035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3052a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void AudioOutputController::OnError(AudioOutputStream* stream) { 3065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Handle error on the audio controller thread. 3075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) message_loop_->PostTask(FROM_HERE, base::Bind( 3082a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) &AudioOutputController::DoReportError, this)); 3095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3112a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void AudioOutputController::DoStopCloseAndClearStream() { 3125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(message_loop_->BelongsToCurrentThread()); 3135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Allow calling unconditionally and bail if we don't have a stream_ to close. 3155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (stream_) { 3162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // De-register from state change callbacks if stream_ was created via 3172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // AudioManager. 3182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (stream_ != diverting_to_stream_) 3192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) audio_manager_->RemoveOutputDeviceChangeListener(this); 3202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) StopStream(); 3225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) stream_->Close(); 3232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (stream_ == diverting_to_stream_) 3242a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) diverting_to_stream_ = NULL; 3255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) stream_ = NULL; 3265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) state_ = kEmpty; 3295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void AudioOutputController::OnDeviceChange() { 3325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(message_loop_->BelongsToCurrentThread()); 33390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) SCOPED_UMA_HISTOGRAM_TIMER("Media.AudioOutputController.DeviceChangeTime"); 334f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) TRACE_EVENT0("audio", "AudioOutputController::OnDeviceChange"); 3355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3362a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // TODO(dalecurtis): Notify the renderer side that a device change has 3372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // occurred. Currently querying the hardware information here will lead to 3382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // crashes on OSX. See http://crbug.com/158170. 3395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Recreate the stream (DoCreate() will first shut down an existing stream). 3412a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Exit if we ran into an error. 3422a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const State original_state = state_; 3432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DoCreate(true); 3445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!stream_ || state_ == kError) 3455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 3465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Get us back to the original state or an equivalent state. 3485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) switch (original_state) { 3495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case kPlaying: 3505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DoPlay(); 3515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 3525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case kCreated: 3535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case kPaused: 3542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // From the outside these two states are equivalent. 3555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 3565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) default: 3575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) NOTREACHED() << "Invalid original state."; 3585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3612a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const AudioParameters& AudioOutputController::GetAudioParameters() { 3622a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return params_; 3632a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 3642a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3652a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void AudioOutputController::StartDiverting(AudioOutputStream* to_stream) { 3662a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) message_loop_->PostTask( 3672a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) FROM_HERE, 3682a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::Bind(&AudioOutputController::DoStartDiverting, this, to_stream)); 3692a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 3702a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3712a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void AudioOutputController::StopDiverting() { 3722a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) message_loop_->PostTask( 3732a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) FROM_HERE, base::Bind(&AudioOutputController::DoStopDiverting, this)); 3742a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 3752a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3762a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void AudioOutputController::DoStartDiverting(AudioOutputStream* to_stream) { 3772a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(message_loop_->BelongsToCurrentThread()); 3782a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3792a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (state_ == kClosed) 3802a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return; 3812a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3822a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(!diverting_to_stream_); 3832a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) diverting_to_stream_ = to_stream; 3842a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Note: OnDeviceChange() will engage the "re-create" process, which will 3852a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // detect and use the alternate AudioOutputStream rather than create a new one 3862a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // via AudioManager. 3872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) OnDeviceChange(); 3882a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 3892a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void AudioOutputController::DoStopDiverting() { 3912a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(message_loop_->BelongsToCurrentThread()); 3922a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3932a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (state_ == kClosed) 3942a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return; 3952a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3962a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Note: OnDeviceChange() will cause the existing stream (the consumer of the 3972a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // diverted audio data) to be closed, and diverting_to_stream_ will be set 3982a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // back to NULL. 3992a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) OnDeviceChange(); 4002a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(!diverting_to_stream_); 4012a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 4022a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 403a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)std::pair<float, bool> AudioOutputController::ReadCurrentPowerAndClip() { 4041320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci DCHECK(will_monitor_audio_levels()); 405a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) return power_monitor_.ReadCurrentPowerAndClip(); 4062a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 4072a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 408f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)void AudioOutputController::WedgeCheck() { 409f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) DCHECK(message_loop_->BelongsToCurrentThread()); 410f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) 411f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) // If we should be playing and we haven't, that's a wedge. 412f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) if (state_ == kPlaying) { 413a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch UMA_HISTOGRAM_BOOLEAN("Media.AudioOutputControllerPlaybackStartupSuccess", 414a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch base::AtomicRefCountIsOne(&on_more_io_data_called_)); 415f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) } 416f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)} 417f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) 4185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace media 419