FILTER.CPP

#include "fdfilter.h" 
#include "filter.h" 
 
HRESULT CFilter::Transform( PBYTE pbIn, int cbLength, PBYTE pbOut ) 
    { 
    if( NULL == pbIn || NULL == pbOut ) 
return ResultFromScode( E_POINTER ); 
    if( 0 == cbLength ) 
return NOERROR; 
 
    CopyMemory( pbOut, pbIn, cbLength ); 
    return NOERROR; 
    } 
 
 
// Merely stubbed out for this simple filter -- we have no need for the 
// extra information 
HRESULT CFilter::SetFormat( PWAVEFORMATEX pwfx ) 
    { 
    if( NULL == pwfx ) 
return ResultFromScode( E_POINTER ); 
 
    return NOERROR;     
    }