Allow audio system to handle synchronized low-latency audio I/O

media/audio/audio_input_device.cc

Index: media/audio/audio_input_device.cc
===================================================================
--- media/audio/audio_input_device.cc	(revision 155057)
+++ media/audio/audio_input_device.cc	(working copy)
@@ -306,7 +306,7 @@
     base::SharedMemoryHandle memory,
     int memory_length,
     CaptureCallback* capture_callback)
-    : AudioDeviceThread::Callback(audio_parameters, memory, memory_length),
+    : AudioDeviceThread::Callback(audio_parameters, 0, memory, memory_length),

[tommi (sloooow) - chröme, 2012/09/07 09:58:19]

It is a bit odd that the AudioInputDevice class passes 0 for the number of input
devices.  I know the reason for it but we're making an architectural change that
makes things confusing.  Will AudioInputDevice eventually be going away?

[Chris Rogers, 2012/09/07 20:34:01]

When I first created the AudioDevice class, I had anticipated that it could be
used for both input and/or output.  I think we have a great opportunity to
rework some of this code, and potentially remove AudioInputDevice.  Obviously we
need to look carefully here and discuss this.  But I'm optimistic that we can
actually simplify this all in the end, given some careful work.

       capture_callback_(capture_callback) {
   audio_bus_ = AudioBus::Create(audio_parameters_);
 }