/* exhaleDecl.h - header file with declarations for exhale DLL ex-/import under Windows
 * written by C. R. Helmrich, last modified in 2020 - see License.htm for legal notices
 *
 * The copyright in this software is being made available under a Modified BSD-Style License
 * and comes with ABSOLUTELY NO WARRANTY. This software may be subject to other third-
 * party rights, including patent rights. No such rights are granted under this License.
 *
 * Copyright (c) 2018-2020 Christian R. Helmrich, project ecodis. All rights reserved.
 */

#ifndef _EXHALE_DECL_H_
#define _EXHALE_DECL_H_

#include <stdint.h> // for (u)int8_t, (u)int16_t, (u)int32_t, (u)int64_t

#if defined (_WIN32) || defined (WIN32) || defined (_WIN64) || defined (WIN64)
# ifdef EXHALE_DYN_LINK
#  define EXHALE_DECL __declspec (dllexport)
# else
#  define EXHALE_DECL __declspec (dllimport)
# endif
#else
# define EXHALE_DECL
#endif

struct ExhaleEncAPI
{
  // initializer
  virtual unsigned initEncoder (unsigned char* const audioConfigBuffer, uint32_t* const audioConfigBytes = nullptr) = 0;
  // lookahead encoder
  virtual unsigned encodeLookahead () = 0;
  // frame encoder
  virtual unsigned encodeFrame () = 0;
  // destructor
  virtual ~ExhaleEncAPI () { }
};

// C constructor
extern "C" EXHALE_DECL ExhaleEncAPI* exhaleCreate (int32_t* const, unsigned char* const, const unsigned, const unsigned,
                                                   const unsigned, const unsigned, const unsigned, const bool, const bool);
// C destructor
extern "C" EXHALE_DECL unsigned exhaleDelete (ExhaleEncAPI*);

// C initializer
extern "C" EXHALE_DECL unsigned exhaleInitEncoder (ExhaleEncAPI*, unsigned char* const, uint32_t* const);

// C lookahead encoder
extern "C" EXHALE_DECL unsigned exhaleEncodeLookahead (ExhaleEncAPI*);

// C frame encoder
extern "C" EXHALE_DECL unsigned exhaleEncodeFrame (ExhaleEncAPI*);

#endif // _EXHALE_DECL_H_