/*
 * @Author: DI JUNKUN
 * @Date: 2023-11-13
 * Copyright (c) 2023 by DI JUNKUN, All Rights Reserved.
 */

#ifndef _FEC_ENCODER_H_
#define _FEC_ENCODER_H_

#include <stddef.h>
#include <stdint.h>

#ifdef __cplusplus
extern "C" {
#endif
#include "lib_common/of_openfec_api.h"
#ifdef __cplusplus
};
#endif

class FecEncoder {
 public:
  FecEncoder();
  ~FecEncoder();

 public:
  int Init();
  int Release();
  uint8_t **Encode(const char *data, size_t len);
  int ReleaseFecPackets(uint8_t **fec_packets, size_t len);
  void GetFecPacketsParams(unsigned int source_length,
                           unsigned int &num_of_total_packets,
                           unsigned int &num_of_source_packets,
                           unsigned int &last_packet_size);

 private:
  double code_rate_ = 0.667;
  int max_size_of_packet_ = 1400;

 private:
  of_codec_id_t fec_codec_id_ = OF_CODEC_REED_SOLOMON_GF_2_M_STABLE;
  of_session_t *fec_session_ = nullptr;
  of_parameters_t *fec_params_ = nullptr;
  of_rs_2_m_parameters_t *fec_rs_params_ = nullptr;
  of_ldpc_parameters_t *fec_ldpc_params_ = nullptr;
};

#endif