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#ifndef APE_WAVINPUTSOURCE_H
#define APE_WAVINPUTSOURCE_H
#include "IO.h"
/*************************************************************************************
CInputSource - base input format class (allows multiple format support)
*************************************************************************************/
class CInputSource
{
public:
// construction / destruction
CInputSource(CIO * pIO, WAVEFORMATEX * pwfeSource, int * pTotalBlocks, int * pHeaderBytes, int * pTerminatingBytes, int * pErrorCode = NULL) { }
CInputSource(const wchar_t * pSourceName, WAVEFORMATEX * pwfeSource, int * pTotalBlocks, int * pHeaderBytes, int * pTerminatingBytes, int * pErrorCode = NULL) { }
virtual ~CInputSource() { }
// get data
virtual int GetData(unsigned char * pBuffer, int nBlocks, int * pBlocksRetrieved) = 0;
// get header / terminating data
virtual int GetHeaderData(unsigned char * pBuffer) = 0;
virtual int GetTerminatingData(unsigned char * pBuffer) = 0;
};
/*************************************************************************************
CWAVInputSource - wraps working with WAV files (could be extended to any format)
*************************************************************************************/
class CWAVInputSource : public CInputSource
{
public:
// construction / destruction
CWAVInputSource(CIO * pIO, WAVEFORMATEX * pwfeSource, int * pTotalBlocks, int * pHeaderBytes, int * pTerminatingBytes, int * pErrorCode = NULL);
CWAVInputSource(const wchar_t * pSourceName, WAVEFORMATEX * pwfeSource, int * pTotalBlocks, int * pHeaderBytes, int * pTerminatingBytes, int * pErrorCode = NULL);
~CWAVInputSource();
// get data
int GetData(unsigned char * pBuffer, int nBlocks, int * pBlocksRetrieved);
// get header / terminating data
int GetHeaderData(unsigned char * pBuffer);
int GetTerminatingData(unsigned char * pBuffer);
private:
int AnalyzeSource();
CSmartPtr<CIO> m_spIO;
WAVEFORMATEX m_wfeSource;
int m_nHeaderBytes;
int m_nDataBytes;
int m_nTerminatingBytes;
int m_nFileBytes;
BOOL m_bIsValid;
};
/*************************************************************************************
Input souce creation
*************************************************************************************/
CInputSource * CreateInputSource(const wchar_t * pSourceName, WAVEFORMATEX * pwfeSource, int * pTotalBlocks, int * pHeaderBytes, int * pTerminatingBytes, int * pErrorCode = NULL);
#endif // #ifndef APE_WAVINPUTSOURCE_H
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