Adds stereo support for Java-based input and output audio on Android

webrtc/modules/audio_device/android/audio_manager.h

 /*
  *  Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 102 matching lines @@
   // webrtc::kHighLatencyModeDelayEstimateInMilliseconds.
   int GetDelayEstimateInMilliseconds() const;
 
  private:
   // Called from Java side so we can cache the native audio parameters.
   // This method will be called by the WebRtcAudioManager constructor, i.e.
   // on the same thread that this object is created on.
   static void JNICALL CacheAudioParameters(JNIEnv* env,
                                            jobject obj,
                                            jint sample_rate,
-                                           jint channels,
+                                           jint output_channels,
+                                           jint input_channels,
                                            jboolean hardware_aec,
                                            jboolean hardware_agc,
                                            jboolean hardware_ns,
                                            jboolean low_latency_output,
                                            jboolean low_latency_input,
                                            jboolean pro_audio,
                                            jint output_buffer_size,
                                            jint input_buffer_size,
                                            jlong native_audio_manager);
   void OnCacheAudioParameters(JNIEnv* env,
                               jint sample_rate,
-                              jint channels,
+                              jint output_channels,
+                              jint input_channels,
                               jboolean hardware_aec,
                               jboolean hardware_agc,
                               jboolean hardware_ns,
                               jboolean low_latency_output,
                               jboolean low_latency_input,
                               jboolean pro_audio,
                               jint output_buffer_size,
                               jint input_buffer_size);
 
   // Stores thread ID in the constructor.
@@ skipping 51 matching lines @@
   // Contains native parameters (e.g. sample rate, channel configuration).
   // Set at construction in OnCacheAudioParameters() which is called from
   // Java on the same thread as this object is created on.
   AudioParameters playout_parameters_;
   AudioParameters record_parameters_;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_AUDIO_DEVICE_ANDROID_AUDIO_MANAGER_H_