embdrv/lc3/Encoder/MdctEnc.hpp

/*
 * MdctEnc.hpp
 *
 * Copyright 2021 HIMSA II K/S - www.himsa.com. Represented by EHIMA -
 * www.ehima.com
 *
 * 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 MDCT_ENC_H_
#define MDCT_ENC_H_

#include <cstdint>

#include "Datapoints.hpp"
#include "DctIV.hpp"
#include "Lc3Config.hpp"

namespace Lc3Enc {

class MdctEnc {
 public:
  MdctEnc(const Lc3Config& lc3Config_);
  virtual ~MdctEnc();

  void registerDatapoints(DatapointContainer* datapoints);

  void run(const int16_t* const x_s);

  const int* get_I_fs() const;

  const Lc3Config& lc3Config;

  double* X;
  double* E_B;
  uint8_t near_nyquist_flag;

 private:
  void MdctFastDbl(const double* const tw);

  DctIVDbl dctIVDbl;

  uint8_t skipMdct;  // just for testing; find a better solution?
  int16_t* t;
  double* wN;
  const int* I_fs;
};

}  // namespace Lc3Enc

#endif  // MDCT_ENC_H_