Handle audio device changes on Mac

media/audio/mac/audio_low_latency_output_mac.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "media/audio/mac/audio_low_latency_output_mac.h"
 
 #include <CoreServices/CoreServices.h>
 
 #include "base/basictypes.h"
 #include "base/command_line.h"
@@ skipping 99 matching lines @@
                                                &default_output_device_address,
                                                0,
                                                0,
                                                &size,
                                                &output_device_id_);
   OSSTATUS_DCHECK(result == noErr, result);
   if (result)
     return false;
 
   // Open and initialize the DefaultOutputUnit.
-  Component comp;
-  ComponentDescription desc;
+  AudioComponent comp;
+  AudioComponentDescription desc;
 
   desc.componentType = kAudioUnitType_Output;
   desc.componentSubType = kAudioUnitSubType_DefaultOutput;
   desc.componentManufacturer = kAudioUnitManufacturer_Apple;
   desc.componentFlags = 0;
   desc.componentFlagsMask = 0;
-  comp = FindNextComponent(0, &desc);
+  comp = AudioComponentFindNext(0, &desc);
   DCHECK(comp);
 
-  result = OpenAComponent(comp, &output_unit_);
+  result = AudioComponentInstanceNew(comp, &output_unit_);
   OSSTATUS_DCHECK(result == noErr, result);
   if (result)
     return false;
 
   result = AudioUnitInitialize(output_unit_);
   OSSTATUS_DCHECK(result == noErr, result);
   if (result)
     return false;
 
   hardware_latency_frames_ = GetHardwareLatency();
@@ skipping 44 matching lines @@
       sizeof(buffer_size));
   OSSTATUS_DCHECK(result == noErr, result);
   if (result)
     return false;
 
   return true;
 }
 
 void AUAudioOutputStream::Close() {
   if (output_unit_)
-    CloseComponent(output_unit_);
+    AudioComponentInstanceDispose(output_unit_);
 
   // Inform the audio manager that we have been closed. This can cause our
   // destruction.
   manager_->ReleaseOutputStream(this);
 }
 
 void AUAudioOutputStream::Start(AudioSourceCallback* callback) {
   DCHECK(callback);
   DLOG_IF(ERROR, !output_unit_) << "Open() has not been called successfully";
   if (!output_unit_)
@@ skipping 185 matching lines @@
   UInt64 output_time_ns = AudioConvertHostTimeToNanos(
       output_time_stamp->mHostTime);
   UInt64 now_ns = AudioConvertHostTimeToNanos(AudioGetCurrentHostTime());
   double delay_frames = static_cast<double>
       (1e-9 * (output_time_ns - now_ns) * format_.mSampleRate);
 
   return (delay_frames + hardware_latency_frames_);
 }
 
 }  // namespace media