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/*=========================================================================
Program: GDCM (Grassroots DICOM). A DICOM library
Copyright (c) 2006-2011 Mathieu Malaterre
All rights reserved.
See Copyright.txt or http://gdcm.sourceforge.net/Copyright.html for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
#include "gdcmImageFragmentSplitter.h"
#include "gdcmTesting.h"
#include "gdcmSystem.h"
#include "gdcmImageReader.h"
#include "gdcmImageWriter.h"
#include "gdcmTransferSyntax.h"
#include "gdcmImage.h"
#include "gdcmFilename.h"
int TestImageFragmentSplitterFunc(const char *filename, bool verbose = false)
{
gdcm::ImageReader reader;
reader.SetFileName( filename );
if ( !reader.Read() )
{
const gdcm::FileMetaInformation &header = reader.GetFile().GetHeader();
gdcm::MediaStorage ms = header.GetMediaStorage();
bool isImage = gdcm::MediaStorage::IsImage( ms );
if( isImage )
{
if( reader.GetFile().GetDataSet().FindDataElement( gdcm::Tag(0x7fe0,0x0010) ) )
{
std::cerr << "Could not read: " << filename << std::endl;
return 1;
}
}
return 0;
}
const gdcm::Image &image = reader.GetImage();
const unsigned int *dims = image.GetDimensions();
if( dims[2] != 1 )
{
return 0; // nothing to do
}
const gdcm::File &file = reader.GetFile();
const gdcm::FileMetaInformation &header = file.GetHeader();
//gdcm::MediaStorage ms = header.GetMediaStorage();
if( header.GetDataSetTransferSyntax() == gdcm::TransferSyntax::ImplicitVRLittleEndian
|| header.GetDataSetTransferSyntax() == gdcm::TransferSyntax::ImplicitVRBigEndianPrivateGE
|| header.GetDataSetTransferSyntax() == gdcm::TransferSyntax::ExplicitVRLittleEndian
|| header.GetDataSetTransferSyntax() == gdcm::TransferSyntax::DeflatedExplicitVRLittleEndian
|| header.GetDataSetTransferSyntax() == gdcm::TransferSyntax::ExplicitVRBigEndian
)
{
return 0; // nothing to do
}
gdcm::ImageFragmentSplitter splitter;
splitter.SetInput( image );
splitter.SetFragmentSizeMax( 65536 );
bool b = splitter.Split();
if( !b )
{
const gdcm::DataElement &pixeldata = file.GetDataSet().GetDataElement( gdcm::Tag(0x7fe0,0x0010) );
const gdcm::SequenceOfFragments* sqf = pixeldata.GetSequenceOfFragments();
if( sqf && dims[2] == 1 )
{
return 0;
}
gdcm::Filename fn( filename );
if( fn.GetName() == std::string("JPEGDefinedLengthSequenceOfFragments.dcm" ) )
{
// JPEG Fragments are packed in a VR:OB Attribute
return 0;
}
std::cerr << "Could not apply splitter: " << filename << std::endl;
return 1;
}
// Create directory first:
const char subdir[] = "TestImageFragmentSplitter";
std::string tmpdir = gdcm::Testing::GetTempDirectory( subdir );
if( !gdcm::System::FileIsDirectory( tmpdir.c_str() ) )
{
gdcm::System::MakeDirectory( tmpdir.c_str() );
//return 1;
}
std::string outfilename = gdcm::Testing::GetTempFilename( filename, subdir );
gdcm::ImageWriter writer;
writer.SetFileName( outfilename.c_str() );
//writer.SetFile( reader.GetFile() ); // increase test goal
writer.SetImage( splitter.GetOutput() );
if( !writer.Write() )
{
std::cerr << "Failed to write: " << outfilename << std::endl;
return 1;
}
if( verbose )
std::cout << "Success to write: " << outfilename << std::endl;
return 0;
}
int TestImageFragmentSplitter(int argc, char *argv[])
{
if( argc == 2 )
{
const char *filename = argv[1];
return TestImageFragmentSplitterFunc(filename, true);
}
// else
gdcm::Trace::DebugOff();
gdcm::Trace::WarningOff();
int r = 0, i = 0;
const char *filename;
const char * const *filenames = gdcm::Testing::GetFileNames();
while( (filename = filenames[i]) )
{
r += TestImageFragmentSplitterFunc( filename );
++i;
}
return r;
}
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