There's a missing test for NULL in podofoimgextractor's
ImageExtractor.cpp. Here's a patch to insert it; and I took the
opportunity to make the logic for detecting a JPEG images slightly
simpler and clearer (at least, I think it is.
--- ImageExtractor.cpp 2010-02-16 00:47:25.000000000 +1030
+++ ImageExtractor-new.cpp 2010-02-16 00:47:05.000000000 +1030
@@ -63,13 +63,10 @@
if( pObj && pObj->IsName() && ( pObj->GetName().GetName() == "Image" ) )
{
pObj = (*it)->GetDictionary().GetKey( PdfName::KeyFilter );
- if( pObj->IsName() && ( pObj->GetName().GetName() == "DCTDecode" ) )
- {
- // The only filter is JPEG -> create a JPEG file
- ExtractImage( *it, true );
- }
- else if( pObj->IsArray() && pObj->GetArray().GetSize() == 1 &&
+ if( pObj && pObj->IsArray() && pObj->GetArray().GetSize() == 1 &&
pObj->GetArray()[0].IsName() && (pObj->GetArray()[0].GetName().GetName() == "DCTDecode") )
+ pObj = &pObj->GetArray()[0];
+ if( pObj && pObj->IsName() && ( pObj->GetName().GetName() == "DCTDecode" ) )
{
// The only filter is JPEG -> create a JPEG file
ExtractImage( *it, true );
------------------------------------------------------------------------------
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