Make AudioParameters a class instead of a struct

content/renderer/pepper/pepper_platform_audio_input_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/pepper/pepper_platform_audio_input_impl.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/message_loop_proxy.h"
 #include "build/build_config.h"
@@ skipping 11 matching lines @@
 
 PepperPlatformAudioInputImpl::~PepperPlatformAudioInputImpl() {
   // Make sure we have been shut down. Warning: this will usually happen on
   // the I/O thread!
   DCHECK_EQ(0, stream_id_);
   DCHECK(!client_);
 }
 
 // static
 PepperPlatformAudioInputImpl* PepperPlatformAudioInputImpl::Create(
-    uint32_t sample_rate,
-    uint32_t sample_count,
+    int sample_rate,
+    int frames_per_buffer,
     webkit::ppapi::PluginDelegate::PlatformAudioCommonClient* client) {
   scoped_refptr<PepperPlatformAudioInputImpl> audio_input(
       new PepperPlatformAudioInputImpl);
-  if (audio_input->Initialize(sample_rate, sample_count, client)) {
+  if (audio_input->Initialize(sample_rate, frames_per_buffer, client)) {
     // Balanced by Release invoked in
     // PepperPlatformAudioInputImpl::ShutDownOnIOThread().
     return audio_input.release();
   }
   return NULL;
 }
 
 bool PepperPlatformAudioInputImpl::StartCapture() {
   ChildProcess::current()->io_message_loop()->PostTask(
     FROM_HERE,
@@ skipping 11 matching lines @@
 void PepperPlatformAudioInputImpl::ShutDown() {
   // Called on the main thread to stop all audio callbacks. We must only change
   // the client on the main thread, and the delegates from the I/O thread.
   client_ = NULL;
   ChildProcess::current()->io_message_loop()->PostTask(
       FROM_HERE,
       base::Bind(&PepperPlatformAudioInputImpl::ShutDownOnIOThread, this));
 }
 
 bool PepperPlatformAudioInputImpl::Initialize(
-    uint32_t sample_rate,
-    uint32_t sample_count,
+    int sample_rate,
+    int frames_per_buffer,
     webkit::ppapi::PluginDelegate::PlatformAudioCommonClient* client) {
   DCHECK(client);
   // Make sure we don't call init more than once.
   DCHECK_EQ(0, stream_id_);
 
   client_ = client;
 
-  AudioParameters params;
-  params.format = AudioParameters::AUDIO_PCM_LINEAR;
-  params.channels = 1;
-  params.sample_rate = sample_rate;
-  params.bits_per_sample = 16;
-  params.samples_per_packet = sample_count;
+  AudioParameters params(AudioParameters::AUDIO_PCM_LINEAR,
+                         CHANNEL_LAYOUT_MONO,
+                         sample_rate, 16, frames_per_buffer);
 
   ChildProcess::current()->io_message_loop()->PostTask(
       FROM_HERE,
       base::Bind(&PepperPlatformAudioInputImpl::InitializeOnIOThread,
                  this, params));
   return true;
 }
 
 void PepperPlatformAudioInputImpl::InitializeOnIOThread(
     const AudioParameters& params) {
@@ skipping 52 matching lines @@
 }
 
 void PepperPlatformAudioInputImpl::OnVolume(double volume) {
 }
 
 void PepperPlatformAudioInputImpl::OnStateChanged(AudioStreamState state) {
 }
 
 void PepperPlatformAudioInputImpl::OnDeviceReady(const std::string&) {
 }