Adding audio unit tests for Android

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 "jni/AudioManagerAndroid_jni.h"
 #include "media/audio/android/opensles_input.h"
 #include "media/audio/android/opensles_output.h"
@@ skipping 41 matching lines @@
 
 void AudioManagerAndroid::GetAudioInputDeviceNames(
     media::AudioDeviceNames* device_names) {
   DCHECK(device_names->empty());
   device_names->push_front(
       media::AudioDeviceName(kDefaultDeviceName, kDefaultDeviceId));
 }
 
 AudioParameters AudioManagerAndroid::GetInputStreamParameters(
     const std::string& device_id) {
+  const media::ChannelLayout kChannelLayout = media::CHANNEL_LAYOUT_MONO;
   int buffer_size = Java_AudioManagerAndroid_getMinInputFrameSize(
-      base::android::AttachCurrentThread(), GetNativeOutputSampleRate(), 2);
+      base::android::AttachCurrentThread(), GetNativeOutputSampleRate(),
+      ChannelLayoutToChannelCount(kChannelLayout));
 
   return AudioParameters(
-      AudioParameters::AUDIO_PCM_LOW_LATENCY, CHANNEL_LAYOUT_STEREO,
+      AudioParameters::AUDIO_PCM_LOW_LATENCY, kChannelLayout,
       GetNativeOutputSampleRate(), 16,
       buffer_size <= 0 ? kDefaultInputBufferSize : buffer_size);
 }
 
 AudioOutputStream* AudioManagerAndroid::MakeAudioOutputStream(
     const AudioParameters& params, const std::string& input_device_id) {
   AudioOutputStream* stream =
     AudioManagerBase::MakeAudioOutputStream(params, std::string());
   if (stream && output_stream_count() == 1) {
     SetAudioMode(kAudioModeInCommunication);
@@ skipping 118 matching lines @@
       j_audio_manager_.obj());
 }
 
 int AudioManagerAndroid::GetAudioLowLatencyOutputFrameSize() {
   return Java_AudioManagerAndroid_getAudioLowLatencyOutputFrameSize(
       base::android::AttachCurrentThread(),
       j_audio_manager_.obj());
 }
 
 }  // namespace media