steghide  0.5.1
DummyFile.h
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1 /*
2  * steghide 0.5.1 - a steganography program
3  * Copyright (C) 1999-2003 Stefan Hetzl <shetzl@chello.at>
4  *
5  * This program is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU General Public License
7  * as published by the Free Software Foundation; either version 2
8  * of the License, or (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program; if not, write to the Free Software
17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18  *
19  */
20 
21 #ifndef SH_DUMMYFILE_H
22 #define SH_DUMMYFILE_H
23 
24 #include <vector>
25 #include <list>
26 
27 class BitString ;
28 #include "CvrStgFile.h"
29 class Selector ;
30 #include "common.h"
31 
36 class DummyFile : public CvrStgFile {
37  public:
43  DummyFile (UWORD16 s, std::vector<std::vector<bool> >* svam) ;
44 
45  std::list<CvrStgFile::Property> getProperties (void) const ;
46 
47  unsigned long getNumSamples (void) const ;
48 
49  void replaceSample (const SamplePos pos, const SampleValue* s) ;
50 
51  SampleValue* getSampleValue (const SamplePos pos) const ;
52 
53  std::vector<std::vector<bool> >* getSampleValueAdjacencyMatrix() const
54  { return SampleValueAdjacencyMatrix ; } ;
55 
73  static void createGraph (std::vector<std::list<UWORD16> >& adjlist, BitString** bs, CvrStgFile** f, Selector** s) ;
74 
75  private:
76  static const unsigned short SamplesPerVertex = 2 ;
77  static const EmbValue EmbValueModulus = 2 ;
78 
79  std::vector<UWORD16> Samples ;
80  std::vector<std::vector<bool> >* SampleValueAdjacencyMatrix ;
81 } ;
82 
83 #endif // ndef SH_DUMMYFILE_H
static void createGraph(std::vector< std::list< UWORD16 > > &adjlist, BitString **bs, CvrStgFile **f, Selector **s)
Definition: DummyFile.cc:63
std::list< CvrStgFile::Property > getProperties(void) const
Definition: DummyFile.cc:39
a cover-/stego-file
Definition: CvrStgFile.h:46
void replaceSample(const SamplePos pos, const SampleValue *s)
Definition: DummyFile.cc:56
UWORD32 SamplePos
Definition: common.h:67
static const EmbValue EmbValueModulus
Definition: DummyFile.h:77
std::vector< UWORD16 > Samples
Definition: DummyFile.h:79
a dummy CvrStgFile implementation to facilitate testing and debugging
Definition: DummyFile.h:36
SampleValue * getSampleValue(const SamplePos pos) const
Definition: DummyFile.cc:51
the value of a sample in a CvrStgFile
Definition: SampleValue.h:61
std::vector< std::vector< bool > > * getSampleValueAdjacencyMatrix() const
Definition: DummyFile.h:53
unsigned short UWORD16
Definition: common.h:46
DummyFile(UWORD16 s, std::vector< std::vector< bool > > *svam)
Definition: DummyFile.cc:27
static const unsigned short SamplesPerVertex
Definition: DummyFile.h:76
a random permutation of a random combination
Definition: Selector.h:36
a string of bits
Definition: BitString.h:42
std::vector< std::vector< bool > > * SampleValueAdjacencyMatrix
Definition: DummyFile.h:80
BYTE EmbValue
Definition: common.h:66
unsigned long getNumSamples(void) const
Definition: DummyFile.cc:46