liblfadec.h

aac解码程序

/****************************************************************************

                      (C) copyright Coding Technologies (2007)
                               All Rights Reserved

 This software module was developed by Coding Technologies (CT). This is
 company confidential information and the property of CT, and can not be
 reproduced or disclosed in any form without written authorization of CT.

 Those intending to use this software module for other purposes are advised
 that this infringe existing or pending patents. CT has no liability for
 use of this software module or derivatives thereof in any implementation.
 Copyright is not released for any means.  CT retains full right to use the
 code for its own purpose, assign or sell the code to a third party and to
 inhibit any user or third party from using the code. This copyright notice
 must be included in all copies or derivative works.

 $Id: liblfadec.h,v 1.1.2.7 2007/01/18 14:02:21 boe Exp $

*******************************************************************************/

/*!
  \file
  \brief  DAB (LFA) aacPlus Decoder Library Interface Functions
  \author Reinhold Boehm
*/

#ifndef _LFADECLIB_H_
#define _LFADECLIB_H_

#ifndef __LFADEC_DLL__
#define LFADECSTATIC
#endif

#ifndef LFADECSTATIC
  #ifdef LFADECDLL_EXPORTS
    #define LFADEC_EXTERN extern __declspec( dllexport )
  #else
    #define LFADEC_EXTERN extern __declspec( dllimport )
  #endif
#else
  #define LFADEC_EXTERN extern
#endif

#ifdef WIN32
  #define LFADEC_API __stdcall
#else
  #define LFADEC_API
#endif

#if (defined WIN32 && !defined __ICL)
  #pragma comment(linker, "-nodefaultlib:libmmt.lib")
  #pragma comment(linker, "-nodefaultlib:libircmt.lib")
  #pragma comment(linker, "-nodefaultlib:svml_disp.lib")
#endif


#ifdef __cplusplus
extern "C" {
#endif


typedef void* HANDLE_LFADECODER;

/*!
  \brief     LFA Decoder return values
*/
typedef enum ENUM_LFADEC_ERROR {

  LFADEC_OK = 0,

  LFADEC_ERROR_GENERALERROR,
  LFADEC_ERROR_INVALIDHANDLE,
  LFADEC_ERROR_OUTOFMEMORY,
  LFADEC_ERROR_WRONGARGUMENT,
  LFADEC_ERROR_WRONGAUDIOPARAM,
  LFADEC_ERROR_RECONFIGURATION

} LFADEC_ERROR;


/***
     CONVENIENCE                   *****/

/*!
  \brief     Return Library Version Information
*/
LFADEC_EXTERN char * LFADEC_API
DABaacPlusDecGetVersionInfo(void);

/*!
  \brief     Check the CRC and Fire code values in the Audio Super Frame
*/
LFADEC_EXTERN int LFADEC_API
DABaacPlusDecCheckSuperframe(HANDLE_LFADECODER  hDecoder,
                             unsigned char     *lfaSuperframe);


/***
     OPEN / CLOSE                  *****/

/*!
  \brief     Creates A Decoder Instance

  This function creates a decoder instance.
*/
LFADEC_EXTERN LFADEC_ERROR LFADEC_API
DABaacPlusDecOpen( HANDLE_LFADECODER *phDecoder,
                   int                subchannelIndex);

/*!
  \brief     Destroys A Decoder Instance
*/
LFADEC_EXTERN void LFADEC_API
DABaacPlusDecClose( HANDLE_LFADECODER *phDecoder);


/*** 
     DECODE                        *****/

/*!
  \brief    Decodes One Audio Super Frame Directly Provided

*/
LFADEC_EXTERN LFADEC_ERROR LFADEC_API
DABaacPlusDecDecodeSuperframe( HANDLE_LFADECODER  hDecoder,
                               unsigned char     *lfaSuperframe,  /*!< the LFA audio super frame */
                               short             *pcmBuffer,      /*!< the audio samples buffer  */
                               int               *nSamples,       /*!< number of audio samples   */
                               int               *asfStatus       /*!< ASF status                */
                               );


/*** 
     END   *****************************/


#ifdef __cplusplus
}  /* extern "C" */
#endif

#endif /* _LFADECLIB_H_ */