[Gdal-dev] Extracting HDF metadata

[Inessa Shalomov]

Has anyone tried to extract specific metadata fields from an HDF file format with GDAL? 
   
  I am trying to use GDAL and its HDF file format support to extract specific metadata fields from an HDF file. The GetMetadataItem() call is not recognizing the metadata keys I am passing in, although according to the spec I am using, the keys are valid.
   
  I used the following code to 
  GDALDataset *poDataset;
  GDALAllRegister();
  poDataset = (GDALDataset *) GDALOpen (pszFilename, GA_ReadOnly);
  const char* retval = poDataset->GetMetadataItem(“PRODUCT_UL_CORNER_LAT”, NULL);
   
  Am I not making the right API calls for HDF? Are there any additional method calls to retrieving the metadata?
   
  Any help would be greatly appreciated.

Thanks
 		
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