Program: gdcm
Module: $RCSfile: gdcmJPEGFragmentsInfo.cxx,v $
Language: C++
- Date: $Date: 2004/10/28 22:21:57 $
- Version: $Revision: 1.4 $
+ Date: $Date: 2005/01/26 16:28:58 $
+ Version: $Revision: 1.11 $
Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
l'Image). All rights reserved. See Doc/License.txt or
=========================================================================*/
#include "gdcmJPEGFragmentsInfo.h"
+#include <fstream>
namespace gdcm
{
+JPEGFragmentsInfo::JPEGFragmentsInfo()
+{
+ StateSuspension = 0;
+}
+
/**
* \brief Default destructor
*/
/**
* \brief Print self.
- * @param indent Indentation string to be prepended during printing.
* @param os Stream to print to.
+ * @param indent Indentation string to be prepended during printing.
*/
-void JPEGFragmentsInfo::Print( std::string indent, std::ostream &os )
+void JPEGFragmentsInfo::Print( std::ostream &os, std::string const &indent )
{
+ os << std::endl;
os << indent
<< "----------------- JPEG fragments --------------------------------"
- << std::endl;
+ << std::endl << std::endl;
os << indent
<< "Total number of fragments : " << Fragments.size()
<< std::endl;
{
os << indent
<< " fragment number :" << fragmentNumber++;
- (*it)->Print( indent + " ", os );
- os << std::endl;
+ (*it)->Print( os, indent + " ");
+ }
+ os << std::endl;
+}
+
+/**
+ * \brief Calculate sum of all fragments length and return total
+ * @return Total size of JPEG fragments length
+ */
+size_t JPEGFragmentsInfo::GetFragmentsLength()
+{
+ // Loop on the fragment[s] to get total length
+ size_t totalLength = 0;
+ JPEGFragmentsList::const_iterator it;
+ for( it = Fragments.begin();
+ it != Fragments.end();
+ ++it )
+ {
+ totalLength += (*it)->GetLength();
+ }
+ return totalLength;
+}
+
+/**
+ * \brief Read the all the JPEG Fragment into the input buffer
+ */
+void JPEGFragmentsInfo::ReadAllFragments(std::ifstream *fp, JOCTET *buffer )
+{
+ JOCTET *p = buffer;
+
+ // Loop on the fragment[s]
+ JPEGFragmentsList::const_iterator it;
+ for( it = Fragments.begin();
+ it != Fragments.end();
+ ++it )
+ {
+ fp->seekg( (*it)->GetOffset(), std::ios::beg);
+ size_t len = (*it)->GetLength();
+ fp->read((char *)p,len);
+ p += len;
+ }
+
+}
+
+void JPEGFragmentsInfo::DecompressJPEGFramesFromFile(std::ifstream *fp, uint8_t *buffer, int nBits, int numBytes, int length)
+{
+ // Pointer to the Raw image
+ uint8_t *localRaw = buffer;
+
+ // Loop on the fragment[s]
+ JPEGFragmentsList::const_iterator it;
+ for( it = Fragments.begin();
+ it != Fragments.end();
+ ++it )
+ {
+ //(*it)->pimage = localRaw;
+ (*it)->DecompressJPEGFramesFromFile(fp, localRaw, nBits, StateSuspension);
+ // update pointer to image after some scanlines read:
+ localRaw = (*it)->GetImage();
+ // Advance to next free location in Raw
+ // for next fragment decompression (if any)
+
+ //localRaw += length * numBytes;
+ //std::cerr << "Used to increment by: " << length * numBytes << std::endl;
}
}
+void JPEGFragmentsInfo::AddFragment(JPEGFragment *fragment)
+{
+ Fragments.push_back(fragment);
+}
} // end namespace gdcm
+