GDCM 2.2.1

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GetSubSequenceData.cxx
/*=========================================================================
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 "gdcmReader.h"
#include "gdcmImage.h"
#include "gdcmImageWriter.h"
#include "gdcmDataElement.h"
#include "gdcmPrivateTag.h"
#include "gdcmUIDGenerator.h"
#include <iostream>
#include <string>
#include <map>
/*
* This example will extract the Movie from the private group of
* GEMS_Ultrasound_MovieGroup_001 See Attribute
* (7fe1,60,GEMS_Ultrasound_MovieGroup_001)
*
* The output file will be stored in `outvid.dcm` as
* MultiframeGrayscaleByteSecondaryCaptureImageStorage
*/
int main(int argc, char *argv[])
{
if( argc < 2 ) return 1;
using namespace gdcm;
const char *filename = argv[1];
gdcm::Reader reader;
reader.SetFileName( filename );
reader.Read();
gdcm::File &file = reader.GetFile();
gdcm::DataSet &ds = file.GetDataSet();
const PrivateTag tseq(0x7fe1,0x1,"GEMS_Ultrasound_MovieGroup_001");
if( !ds.FindDataElement( tseq ) ) return 1;
const DataElement& seq = ds.GetDataElement( tseq );
SmartPointer<SequenceOfItems> sqi = seq.GetValueAsSQ();
assert( sqi->GetNumberOfItems() == 1 );
Item &item = sqi->GetItem(1);
DataSet &subds = item.GetNestedDataSet();
const PrivateTag tseq1(0x7fe1,0x10,"GEMS_Ultrasound_MovieGroup_001");
if( !subds.FindDataElement( tseq1 ) ) return 1;
const DataElement& seq1 = subds.GetDataElement( tseq1 );
SmartPointer<SequenceOfItems> sqi2 = seq1.GetValueAsSQ();
//int n = sqi2->GetNumberOfItems();
int index = 1;
Item &item2 = sqi2->GetItem(index);
DataSet &subds2 = item2.GetNestedDataSet();
const PrivateTag tseq2(0x7fe1,0x20,"GEMS_Ultrasound_MovieGroup_001");
if( !subds2.FindDataElement( tseq2 ) ) return 1;
const DataElement& seq2 = subds2.GetDataElement( tseq2 );
// std::cout << seq2 << std::endl;
SmartPointer<SequenceOfItems> sqi3 = seq2.GetValueAsSQ();
size_t ni3 = sqi3->GetNumberOfItems(); (void)ni3;
assert( sqi3->GetNumberOfItems() >= 1 );
Item &item3 = sqi3->GetItem(1);
DataSet &subds3 = item3.GetNestedDataSet();
const PrivateTag tseq6(0x7fe1,0x26,"GEMS_Ultrasound_MovieGroup_001");
if( !subds3.FindDataElement( tseq6 ) ) return 1;
const DataElement& seq6 = subds3.GetDataElement( tseq6 );
SmartPointer<SequenceOfItems> sqi6 = seq6.GetValueAsSQ();
size_t ni6= sqi6->GetNumberOfItems();
assert( sqi6->GetNumberOfItems() >= 1 );
const PrivateTag tseq7(0x7fe1,0x86,"GEMS_Ultrasound_MovieGroup_001");
int dimx = 0, dimy = 0;
for( size_t i6 = 1; i6 <= ni6; ++i6 )
{
Item &item6 = sqi6->GetItem(i6);
DataSet &subds6 = item6.GetNestedDataSet();
if( subds6.FindDataElement( tseq7 ) )
{
Element<VR::SL, VM::VM4> el;
el.SetFromDataElement( subds6.GetDataElement( tseq7 ) );
std::cout << "El= " << el.GetValue() << std::endl;
dimx = el.GetValue(0);
dimy = el.GetValue(1);
}
}
const PrivateTag tseq3(0x7fe1,0x36,"GEMS_Ultrasound_MovieGroup_001");
if( !subds3.FindDataElement( tseq3 ) ) return 1;
const DataElement& seq3 = subds3.GetDataElement( tseq3 );
// std::cout << seq3 << std::endl;
SmartPointer<SequenceOfItems> sqi4 = seq3.GetValueAsSQ();
size_t ni4= sqi4->GetNumberOfItems();
assert( sqi4->GetNumberOfItems() >= 1 );
const PrivateTag tseq8(0x7fe1,0x37,"GEMS_Ultrasound_MovieGroup_001");
const PrivateTag tseq4(0x7fe1,0x43,"GEMS_Ultrasound_MovieGroup_001");
const PrivateTag tseq5(0x7fe1,0x60,"GEMS_Ultrasound_MovieGroup_001");
std::vector<char> imbuffer;
int dimz = 0;
for( size_t i4 = 1; i4 <= ni4; ++i4 )
{
Item &item4 = sqi4->GetItem(i4);
DataSet &subds4 = item4.GetNestedDataSet();
if( !subds4.FindDataElement( tseq8 ) ) return 1;
const DataElement& de8 = subds4.GetDataElement( tseq8 );
Element<VR::UL,VM::VM1> ldimz;
ldimz.SetFromDataElement( de8 );
dimz += ldimz.GetValue();
if( !subds4.FindDataElement( tseq4 ) ) return 1;
const DataElement& seq4 = subds4.GetDataElement( tseq4 );
if( !subds4.FindDataElement( tseq5 ) ) return 1;
const DataElement& seq5 = subds4.GetDataElement( tseq5 );
// std::cout << seq4 << std::endl;
// std::cout << seq5 << std::endl;
const ByteValue *bv4 = seq4.GetByteValue();
(void)bv4;
#if 0
{
std::ofstream out( "/tmp/mo4" );
out.write( bv4->GetPointer(), bv4->GetLength());
out.close();
}
#endif
const ByteValue *bv5 = seq5.GetByteValue();
#if 0
{
std::ofstream out( "/tmp/mo5" );
out.write( bv5->GetPointer(), bv5->GetLength());
out.close();
}
#endif
std::cout << bv5->GetLength() << std::endl;
imbuffer.insert( imbuffer.begin(), bv5->GetPointer(), bv5->GetPointer() + bv5->GetLength() );
}
DataElement fakedata;
fakedata.SetByteValue( &imbuffer[0], (uint32_t)imbuffer.size() );
gdcm::SmartPointer<gdcm::Image> im = new gdcm::Image;
im->SetNumberOfDimensions( 3 );
im->SetDimension(0, dimx );
im->SetDimension(1, dimy );
im->SetDimension(2, dimz );
size_t l1 = imbuffer.size();
(void)l1;
size_t l2 = im->GetBufferLength();
(void)l2;
assert( im->GetBufferLength() == imbuffer.size() );
im->SetPhotometricInterpretation( gdcm::PhotometricInterpretation::MONOCHROME2 );
im->SetDataElement( fakedata );
gdcm::ImageWriter w;
w.SetImage( *im );
DataSet &dataset = w.GetFile().GetDataSet();
gdcm::UIDGenerator uid;
gdcm::DataElement de( Tag(0x8,0x18) ); // SOP Instance UID
de.SetVR( VR::UI );
const char *u = uid.Generate();
de.SetByteValue( u, (uint32_t)strlen(u) );
//ds.Insert( de );
dataset.Replace( de );
de.SetTag( Tag(0x8,0x16) ); // SOP Class UID
de.SetVR( VR::UI );
gdcm::MediaStorage ms(
gdcm::MediaStorage::MultiframeGrayscaleByteSecondaryCaptureImageStorage );
de.SetByteValue( ms.GetString(), (uint32_t)strlen(ms.GetString()));
dataset.Replace( de ); // replace !
w.SetFileName( "outvid.dcm" );
if( !w.Write() )
{
return 1;
}
return 0;
}