Conversational Speech tool, WavReaderAdaptor and unit test

webrtc/modules/audio_processing/test/conversational_speech/wavreader_adaptor.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_ADAPTOR_H_
 #define WEBRTC_MODULES_AUDIO_PROCESSING_TEST_CONVERSATIONAL_SPEECH_WAVREADER_ADAPTOR_H_
 
 #include "webrtc/modules/audio_processing/test/conversational_speech/wavreader_interface.h"
 
-#include <cstddef>
+#include <memory>
 #include <string>
 
-#include "webrtc/typedefs.h"
-
 namespace webrtc {
 namespace test {
 namespace conversational_speech {
 
-class WavReaderAdaptor : public WavReaderInterface {
- public:
-  explicit WavReaderAdaptor(const std::string& filepath);
-  ~WavReaderAdaptor() override;
-
-  size_t ReadFloatSamples(size_t num_samples, float* samples) override;
-  size_t ReadInt16Samples(size_t num_samples, int16_t* samples) override;
-
-  int sample_rate() const override;
-  size_t num_channels() const override;
-  size_t num_samples() const override;
-};
+std::unique_ptr<WavReaderInterface> CreateWavReaderAdaptor(
+    const std::string& filepath);
 
 }  // namespace conversational_speech
 }  // namespace test
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_AUDIO_PROCESSING_TEST_CONVERSATIONAL_SPEECH_WAVREADER_ADAPTOR_H_