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

	Audio decoder interface
	Copyright 2000 Eugene Kuznetsov  (divx@euro.ru)

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

#ifndef AUDIODEC_IMPL
#define AUDIODEC_IMPL
#include <except.h>

#ifndef _WAVEFORMATEX_
#define _WAVEFORMATEX_
typedef struct _WAVEFORMATEX {
  short   wFormatTag;
  short   nChannels;
  long  nSamplesPerSec;
  long  nAvgBytesPerSec;
  short   nBlockAlign;
  short   wBitsPerSample;
  short   cbSize;
} WAVEFORMATEX, *PWAVEFORMATEX, *NPWAVEFORMATEX, *LPWAVEFORMATEX;
#endif

class IAudioDecoder
{
protected:
    WAVEFORMATEX in_fmt;
    int m_status;
public:
    static IAudioDecoder* Create(WAVEFORMATEX*  format, void* extension);
    int GetOutputFormat(WAVEFORMATEX* destfmt);
    
    virtual int GetMinSize() 						=0;
    virtual int Convert(unsigned char* in_data, Unsigned in_size,
	    unsigned char* out_data, Unsigned out_size,
	    Unsigned* size_read, Unsigned* size_written) 		=0;
    virtual int Close() 						=0;
};  	      
#endif