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); 
}