GDCM 2.2.1

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ExtractEncapsulatedFile.cs
/*=========================================================================
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.
=========================================================================*/
/*
* This example shows how one from C# context can extract a binary blob
* and write out as a file.
* This example is meant for pdf encapsulated file, but can be adapted for other type
* of binary blob.
*
* DICOM file is:
* ...
* (0042,0010) ST (no value available) # 0, 0 DocumentTitle
* (0042,0011) OB 25\50\44\46\2d\31\2e\32\20\0d\25\e2\e3\cf\d3\20\0d\31\30\20\30\20... # 40718, 1 EncapsulatedDocument
* (0042,0012) LO [application/pdf] # 16, 1 MIMETypeOfEncapsulatedDocument
* ...
*
* Usage:
* $ export LD_LIBRARY_PATH=$HOME/Projects/gdcm/debug-gcc/bin
* $ mono bin/ExtractEncapsulatedFile.exe some_pdf_encapsulated.dcm
*/
using System;
using gdcm;
public class ExtractEncapsulatedFile
{
public static int Main(string[] args)
{
string file = args[0];
Reader reader = new Reader();
reader.SetFileName( file );
bool ret = reader.Read();
if( !ret )
{
return 1;
}
File f = reader.GetFile();
DataSet ds = f.GetDataSet();
Tag tencapsulated_stream = new Tag(0x0042,0x0011); // Encapsulated Document
if( !ds.FindDataElement( tencapsulated_stream ) )
{
return 1;
}
// else
DataElement de = ds.GetDataElement( tencapsulated_stream );
ByteValue bv = de.GetByteValue();
uint len = bv.GetLength();
byte[] encapsulated_stream = new byte[len];
bv.GetBuffer( encapsulated_stream, len );
// Write out the decompressed bytes
//System.Console.WriteLine(image.toString());
using (System.IO.Stream stream =
System.IO.File.Open(@"/tmp/dd.pdf",
System.IO.FileMode.Create))
{
System.IO.BinaryWriter writer = new System.IO.BinaryWriter(stream);
writer.Write( encapsulated_stream );
}
return 0;
}
}