Android implementation of WebAudio audio file decoder

media/audio/android/audio_manager_android.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 "media/audio/android/audio_manager_android.h"
 
 #include "base/logging.h"
 #include "media/audio/android/opensles_input.h"
 #include "media/audio/android/opensles_output.h"
 #include "media/audio/audio_manager.h"
@@ skipping 65 matching lines @@
 }
 
 AudioInputStream* AudioManagerAndroid::MakeLowLatencyInputStream(
     const AudioParameters& params, const std::string& device_id) {
   DCHECK_EQ(AudioParameters::AUDIO_PCM_LOW_LATENCY, params.format());
   return new OpenSLESInputStream(this, params);
 }
 
 AudioParameters AudioManagerAndroid::GetPreferredOutputStreamParameters(
     const AudioParameters& input_params) {
-  // TODO(xians): figure out the right output sample rate and sample rate to
+  // TODO(xians): figure out the right output sample rate and buffer size to
   // achieve the best audio performance for Android devices.
-  static const int kDefaultSampleRate = 16000;
-  static const int kDefaultBufferSize = 1024;
+  static const int kDefaultSampleRate = 44100;
+  static const int kDefaultBufferSize = 2048;
 
   ChannelLayout channel_layout = CHANNEL_LAYOUT_STEREO;
   int sample_rate = kDefaultSampleRate;
   int buffer_size = kDefaultBufferSize;
   int bits_per_sample = 16;
   int input_channels = 0;
   if (input_params.IsValid()) {
     // Use the client's input parameters if they are valid.
     sample_rate = input_params.sample_rate();
     bits_per_sample = input_params.bits_per_sample();
@@ skipping 10 matching lines @@
   int user_buffer_size = GetUserBufferSize();
   if (user_buffer_size)
     buffer_size = user_buffer_size;
 
   return AudioParameters(
       AudioParameters::AUDIO_PCM_LOW_LATENCY, channel_layout, input_channels,
       sample_rate, bits_per_sample, buffer_size);
 }
 
 }  // namespace media