Test code for issue 3 channels audio.

content/renderer/media/webrtc_audio_capturer.cc

Index: content/renderer/media/webrtc_audio_capturer.cc
diff --git a/content/renderer/media/webrtc_audio_capturer.cc b/content/renderer/media/webrtc_audio_capturer.cc
index e47beeada9599414a4b77d88ab07eb3457584baf..008cede0a39aaccaa17f9f160e3ae0714e91a2eb 100644
--- a/content/renderer/media/webrtc_audio_capturer.cc
+++ b/content/renderer/media/webrtc_audio_capturer.cc
@@ -331,10 +331,17 @@ void WebRtcAudioCapturer::SetCapturerSource(
                                 16, buffer_size,
                                 device_info_.device.input.effects);
 
+  // Hack to test.
+  media::AudioParameters params_msap(
+      media::AudioParameters::AUDIO_PCM_LOW_LATENCY,
+      media::CHANNEL_LAYOUT_STEREO,
+      0, sample_rate, 16, buffer_size,
+      device_info_.device.input.effects);
+
   {
     base::AutoLock auto_lock(lock_);
     // Notify the |audio_processor_| of the new format.
-    audio_processor_->OnCaptureFormatChanged(params);
+    audio_processor_->OnCaptureFormatChanged(params_msap);
 
     MediaAudioConstraints audio_constraints(constraints_,
                                             device_info_.device.input.effects);
@@ -495,20 +502,30 @@ void WebRtcAudioCapturer::Capture(const media::AudioBus* audio_source,
   }
 
   DCHECK(audio_processor_->InputFormat().IsValid());
-  DCHECK_EQ(audio_source->channels(),
-            audio_processor_->InputFormat().channels());
+//  DCHECK_EQ(audio_source->channels(),
+//            audio_processor_->InputFormat().channels());
   DCHECK_EQ(audio_source->frames(),
             audio_processor_->InputFormat().frames_per_buffer());
 
+  scoped_ptr<media::AudioBus> audio_source_2ch =
+      media::AudioBus::CreateWrapper(2);
+  audio_source_2ch->SetChannelData(0, audio_source->channel(0));
+  audio_source_2ch->SetChannelData(1, audio_source->channel(1));
+  audio_source_2ch->set_frames(audio_source->frames());
+
   // Notify the tracks on when the format changes. This will do nothing if
   // |tracks_to_notify_format| is empty.
   media::AudioParameters output_params = audio_processor_->OutputFormat();
+//  LOG(ERROR) << "***** LAYOUT: " << output_params.channel_layout();
   for (TrackList::ItemList::const_iterator it = tracks_to_notify_format.begin();
        it != tracks_to_notify_format.end(); ++it) {
     (*it)->OnSetFormat(output_params);
     (*it)->SetAudioProcessor(audio_processor_);
   }
 
+//  LOG(ERROR) << "***** FRAMES = " << audio_source->frames();
+//  LOG(ERROR) << "***** FRAMES 2ch = " << audio_source_2ch->frames();
+
   if ((base::TimeTicks::Now() - last_audio_level_log_time_).InSeconds() >
           kPowerMonitorLogIntervalSeconds) {
     audio_power_monitor_.Scan(*audio_source, audio_source->frames());
@@ -524,7 +541,8 @@ void WebRtcAudioCapturer::Capture(const media::AudioBus* audio_source,
   }
 
   // Push the data to the processor for processing.
-  audio_processor_->PushCaptureData(audio_source);
+//  audio_processor_->PushCaptureData(audio_source);
+  audio_processor_->PushCaptureData(audio_source_2ch.get());
 
   // Process and consume the data in the processor until there is not enough
   // data in the processor.