Reland 15721002: Hook up the device selection to the WebAudio live audio

media/audio/ios/audio_manager_ios.mm

 // Copyright 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/ios/audio_manager_ios.h"
 
 #import <AudioToolbox/AudioToolbox.h>
 #import <AVFoundation/AVFoundation.h>
 
 #include "base/sys_info.h"
@@ skipping 44 matching lines @@
   // achieve the best audio performance for iOS devices.
   // TODO(xians): query the native channel layout for the specific device.
   static const int kDefaultSampleRate = 48000;
   static const int kDefaultBufferSize = 2048;
   return AudioParameters(
       AudioParameters::AUDIO_PCM_LOW_LATENCY, CHANNEL_LAYOUT_STEREO,
       kDefaultSampleRate, 16, kDefaultBufferSize);
 }
 
 AudioOutputStream* AudioManagerIOS::MakeAudioOutputStream(
-    const AudioParameters& params) {
+    const AudioParameters& params, const std::string& input_device_id) {
   NOTIMPLEMENTED();  // Only input is supported on iOS.
   return NULL;
 }
 
 AudioInputStream* AudioManagerIOS::MakeAudioInputStream(
     const AudioParameters& params, const std::string& device_id) {
   // Current line of iOS devices has only one audio input.
   // Ignore the device_id (unittest uses a test value in it).
   if (!params.IsValid() || (params.channels() > kMaxInputChannels))
     return NULL;
 
   if (params.format() == AudioParameters::AUDIO_FAKE)
     return FakeAudioInputStream::MakeFakeStream(this, params);
   else if (params.format() == AudioParameters::AUDIO_PCM_LINEAR)
     return new PCMQueueInAudioInputStream(this, params);
   return NULL;
 }
 
 AudioOutputStream* AudioManagerIOS::MakeLinearOutputStream(
-      const AudioParameters& params) {
+    const AudioParameters& params) {
   NOTIMPLEMENTED();  // Only input is supported on iOS.
   return NULL;
 }
 
 AudioOutputStream* AudioManagerIOS::MakeLowLatencyOutputStream(
-      const AudioParameters& params) {
+    const AudioParameters& params, const std::string& input_device_id) {
   NOTIMPLEMENTED();  // Only input is supported on iOS.
   return NULL;
 }
 
 AudioInputStream* AudioManagerIOS::MakeLinearInputStream(
-      const AudioParameters& params, const std::string& device_id) {
+    const AudioParameters& params, const std::string& device_id) {
   return MakeAudioInputStream(params, device_id);
 }
 
 AudioInputStream* AudioManagerIOS::MakeLowLatencyInputStream(
-      const AudioParameters& params, const std::string& device_id) {
+    const AudioParameters& params, const std::string& device_id) {
   NOTIMPLEMENTED();  // Only linear audio input is supported on iOS.
   return MakeAudioInputStream(params, device_id);
 }
 
 
 AudioParameters AudioManagerIOS::GetPreferredOutputStreamParameters(
     const AudioParameters& input_params) {
   // TODO(xians): handle the case when input_params is valid.
   // TODO(xians): figure out the right output sample rate and sample rate to
   // achieve the best audio performance for iOS devices.
@@ skipping 18 matching lines @@
 void AudioManagerIOS::ReleaseInputStream(AudioInputStream* stream) {
   delete stream;
 }
 
 // static
 AudioManager* CreateAudioManager() {
   return new AudioManagerIOS();
 }
 
 }  // namespace media