Programming with LEADTOOLS Multimedia > C Code > IltmmConvert::get_SourceStream Example for C

IltmmConvert::get_SourceStream Example for C

This method will fill the source stream with data from a buffer.

void IltmmConvert_get_SourceStream_Example (UCHAR *pData, long lSize, IltmmConvert *pConvert)  
{ 
   IltmmMemory *pMemSource = NULL;  
   SAFEARRAY sa;  
   VARIANT var;  
 
   HRESULT hr = IltmmConvert_get_SourceStream(pConvert, (IUnknown**)&pMemSource);  
 
   if(FAILED(hr) || pMemSource == NULL)  
      return;  
 
   IltmmMemory_put_BufferSize(pMemSource, lSize);  
 
   // pass data 
   memset(&sa, 0, sizeof(sa));  
   sa.cbElements = sizeof(unsigned char);  
   sa.cDims = 1;  
   sa.fFeatures = (FADF_AUTO | FADF_FIXEDSIZE);  
   sa.pvData = pData;  
   sa.rgsabound[0].cElements = lSize;  
   VariantInit(&var);  
   V_VT(&var) = (VT_ARRAY | VT_UI1);  
   V_ARRAY(&var) = &sa;  
 
   IltmmMemory_SetData(pMemSource, 0, lSize, var);  
 
   IltmmMemory_Release(pMemSource);  
}