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      1 /*
      2  *  Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
      3  *
      4  *  Use of this source code is governed by a BSD-style license
      5  *  that can be found in the LICENSE file in the root of the source
      6  *  tree. An additional intellectual property rights grant can be found
      7  *  in the file PATENTS.  All contributing project authors may
      8  *  be found in the AUTHORS file in the root of the source tree.
      9  */
     10 
     11 #ifndef WEBRTC_COMMON_AUDIO_REAL_FOURIER_OPENMAX_H_
     12 #define WEBRTC_COMMON_AUDIO_REAL_FOURIER_OPENMAX_H_
     13 
     14 #include <complex>
     15 
     16 #include "webrtc/common_audio/real_fourier.h"
     17 
     18 namespace webrtc {
     19 
     20 class RealFourierOpenmax : public RealFourier {
     21  public:
     22   explicit RealFourierOpenmax(int fft_order);
     23   ~RealFourierOpenmax() override;
     24 
     25   void Forward(const float* src, std::complex<float>* dest) const override;
     26   void Inverse(const std::complex<float>* src, float* dest) const override;
     27 
     28   int order() const override {
     29     return order_;
     30   }
     31 
     32  private:
     33   // Basically a forward declare of OMXFFTSpec_R_F32. To get rid of the
     34   // dependency on openmax.
     35   typedef void OMXFFTSpec_R_F32_;
     36   const int order_;
     37 
     38   OMXFFTSpec_R_F32_* const omx_spec_;
     39 };
     40 
     41 }  // namespace webrtc
     42 
     43 #endif  // WEBRTC_COMMON_AUDIO_REAL_FOURIER_OPENMAX_H_
     44 
     45