Audio software mixer.

content/browser/speech/speech_recognizer_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/browser/speech/speech_recognizer_impl.h"
 
+#include <algorithm>
+#include <string>
+#include <vector>
+
 #include "base/bind.h"
 #include "base/time.h"
 #include "content/browser/browser_main_loop.h"
 #include "content/browser/speech/audio_buffer.h"
 #include "content/public/browser/speech_recognition_event_listener.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/common/speech_recognition_result.h"
 #include "net/url_request/url_request_context_getter.h"
 
 using content::BrowserMainLoop;
@@ skipping 108 matching lines @@
   DCHECK(!encoder_.get());
 
   // The endpointer needs to estimate the environment/background noise before
   // starting to treat the audio as user input. In |HandleOnData| we wait until
   // such time has passed before switching to user input mode.
   endpointer_.SetEnvironmentEstimationMode();
 
   encoder_.reset(AudioEncoder::Create(codec_, kAudioSampleRate,
                                       kNumBitsPerAudioSample));
   int samples_per_packet = (kAudioSampleRate * kAudioPacketIntervalMs) / 1000;
-  AudioParameters params(AudioParameters::AUDIO_PCM_LINEAR, kChannelLayout,
+  AudioParameters params(AudioParameters::AUDIO_PCM_LINEAR,
+                         false, kChannelLayout,
                          kAudioSampleRate, kNumBitsPerAudioSample,
                          samples_per_packet);
   audio_controller_ = AudioInputController::Create(
       audio_manager_ ? audio_manager_ : BrowserMainLoop::GetAudioManager(),
       this, params);
   DCHECK(audio_controller_.get());
   VLOG(1) << "SpeechRecognizer starting record.";
   num_samples_recorded_ = 0;
   audio_controller_->Record();
 
@@ skipping 199 matching lines @@
 
 bool SpeechRecognizerImpl::IsActive() const {
   return (request_.get() != NULL);
 }
 
 bool SpeechRecognizerImpl::IsCapturingAudio() const {
   return (audio_controller_.get() != NULL);
 }
 
 }  // namespace speech