Audio software mixer.

content/renderer/media/audio_renderer_impl.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 "content/renderer/media/audio_renderer_impl.h"
 
 #include <math.h>
 
 #include <algorithm>
 
@@ skipping 44 matching lines @@
 
 bool AudioRendererImpl::OnInitialize(int bits_per_channel,
                                      ChannelLayout channel_layout,
                                      int sample_rate) {
   // We use the AUDIO_PCM_LINEAR flag because AUDIO_PCM_LOW_LATENCY
   // does not currently support all the sample-rates that we require.
   // Please see: http://code.google.com/p/chromium/issues/detail?id=103627
   // for more details.
   audio_parameters_.Reset(
       AudioParameters::AUDIO_PCM_LINEAR,
+      true,
       channel_layout, sample_rate, bits_per_channel,
       audio_hardware::GetHighLatencyOutputBufferSize(sample_rate));
 
   bytes_per_second_ = audio_parameters_.GetBytesPerSecond();
 
   DCHECK(sink_.get());
 
   if (!is_initialized_) {
     sink_->Initialize(audio_parameters_, this);
 
@@ skipping 145 matching lines @@
 
 void AudioRendererImpl::OnRenderError() {
   host()->DisableAudioRenderer();
 }
 
 void AudioRendererImpl::OnRenderEndOfStream() {
   // TODO(enal): schedule callback instead of polling.
   if (base::Time::Now() >= earliest_end_time_)
     SignalEndOfStream();
 }