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diff --git a/src/3rdparty/resonance-audio/resonance_audio/utils/wav.h b/src/3rdparty/resonance-audio/resonance_audio/utils/wav.h
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+/*
+Copyright 2018 Google Inc. All Rights Reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS-IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+#ifndef RESONANCE_AUDIO_UTILS_WAV_H_
+#define RESONANCE_AUDIO_UTILS_WAV_H_
+
+#include <cstdint>
+#include <memory>
+#include <vector>
+
+namespace vraudio {
+
+// Wraps WavReader class to decode a wav file into memory.
+class Wav {
+ public:
+  ~Wav();
+
+  // Reads a RIFF WAVE from an opened binary stream.
+  static std::unique_ptr<const Wav> CreateOrNull(std::istream* binary_stream);
+
+  // Returns reference to interleaved samples.
+  const std::vector<int16_t>& interleaved_samples() const {
+    return interleaved_samples_;
+  }
+
+  // Returns number of channels.
+  size_t GetNumChannels() const { return num_channels_; }
+
+  // Returns sample rate.
+  int GetSampleRateHz() const { return sample_rate_; }
+
+ private:
+  // Private constructor used by static factory methods.
+  //
+  // @param num_channels Number of audio channels.
+  // @param sample_rate Sample rate.
+  // @param interleaved_samples Decoded interleaved samples.
+  Wav(size_t num_channels, int sample_rate,
+      std::vector<int16_t>&& interleaved_samples);
+
+  // Number of channels.
+  size_t num_channels_;
+
+  // Sample rate.
+  int sample_rate_;
+
+  // Interleaved samples.
+  std::vector<int16_t> interleaved_samples_;
+};
+
+}  // namespace vraudio
+
+#endif  // RESONANCE_AUDIO_UTILS_WAV_H_