steghide 0.5.1
JpegSampleValue.h
Go to the documentation of this file.
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_JPEGSAMPLE_H
22#define SH_JPEGSAMPLE_H
23
24#include "SampleValue.h"
25
27 public:
28 JpegSampleValue (int c) ;
29
31 UWORD32 calcDistance (const SampleValue *s) const ;
32 std::string getName (void) const ;
33
34 SWORD16 getDctCoeff (void) const
35 { return DctCoeff ; } ;
36
38 { return (((dctc >= 0) ? dctc : -dctc) % 2) ; } ;
39
40 private:
42} ;
43
44#endif // ndef SH_JPEGSAMPLE_H
Definition: JpegSampleValue.h:26
static EmbValue calcEValue(SWORD16 dctc)
Definition: JpegSampleValue.h:37
JpegSampleValue(int c)
Definition: JpegSampleValue.cc:27
SWORD16 getDctCoeff(void) const
Definition: JpegSampleValue.h:34
std::string getName(void) const
Definition: JpegSampleValue.cc:93
UWORD32 calcDistance(const SampleValue *s) const
Definition: JpegSampleValue.cc:82
SWORD16 DctCoeff
Definition: JpegSampleValue.h:41
SampleValue * getNearestTargetSampleValue(EmbValue t) const
Definition: JpegSampleValue.cc:34
the value of a sample in a CvrStgFile
Definition: SampleValue.h:61
unsigned long UWORD32
Definition: common.h:45
short SWORD16
Definition: common.h:49
BYTE EmbValue
Definition: common.h:66