Conversational Speech tool, WavReaderAdaptor and unit test

webrtc/modules/audio_processing/test/conversational_speech/wavreader_interface.h

 /*
  *  Copyright (c) 2017 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.
  */
 
 #ifndef WEBRTC_MODULES_AUDIO_PROCESSING_TEST_CONVERSATIONAL_SPEECH_WAVREADER_INTERFACE_H_
 #define WEBRTC_MODULES_AUDIO_PROCESSING_TEST_CONVERSATIONAL_SPEECH_WAVREADER_INTERFACE_H_
 
 #include <stddef.h>
 
+#include "webrtc/base/array_view.h"
 #include "webrtc/typedefs.h"
 
 namespace webrtc {
 namespace test {
 namespace conversational_speech {
 
 class WavReaderInterface {
  public:
   virtual ~WavReaderInterface() = default;
 
   // Returns the number of samples read.
-  virtual size_t ReadFloatSamples(size_t num_samples, float* samples) = 0;
-  virtual size_t ReadInt16Samples(size_t num_samples, int16_t* samples) = 0;
+  virtual size_t ReadFloatSamples(rtc::ArrayView<float> samples) = 0;
+  virtual size_t ReadInt16Samples(rtc::ArrayView<int16_t> samples) = 0;
 
   // Getters.
-  virtual int sample_rate() const = 0;
-  virtual size_t num_channels() const = 0;
-  virtual size_t num_samples() const = 0;
+  virtual int SampleRate() const = 0;
+  virtual size_t NumChannels() const = 0;
+  virtual size_t NumSamples() const = 0;
 };
 
 }  // namespace conversational_speech
 }  // namespace test
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_AUDIO_PROCESSING_TEST_CONVERSATIONAL_SPEECH_WAVREADER_INTERFACE_H_