1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
|
/*****************************************************************************
* *
* OpenNI 2.x Alpha *
* Copyright (C) 2012 PrimeSense Ltd. *
* *
* This file is part of OpenNI. *
* *
* Licensed under the Apache License, Version 2.0 (the "License"); *
* you may not use this file except in compliance with the License. *
* You may obtain a copy of the License at *
* *
* http://www.apache.org/licenses/LICENSE-2.0 *
* *
* Unless required by applicable law or agreed to in writing, software *
* distributed under the License is distributed on an "AS IS" BASIS, *
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
* See the License for the specific language governing permissions and *
* limitations under the License. *
* *
*****************************************************************************/
#ifndef __XN_JPEG_CODEC_H__
#define __XN_JPEG_CODEC_H__
//---------------------------------------------------------------------------
// Includes
//---------------------------------------------------------------------------
#include "XnCodecBase.h"
#include <Formats/XnStreamCompression.h>
//---------------------------------------------------------------------------
// Types
//---------------------------------------------------------------------------
class XnJpegCodec : public XnCodecBase
{
public:
XnJpegCodec(XnBool bRGB, XnUInt32 nXRes, XnUInt32 nYRes, XnUInt32 nQuality = XN_STREAM_COMPRESSION_JPEG_DEFAULT_QUALITY) :
m_bRGB(bRGB), m_nXRes(nXRes), m_nYRes(nYRes), m_nQuality(nQuality)
{}
~XnJpegCodec()
{
XnStreamFreeCompressImageJ(&m_CompJPEGContext);
XnStreamFreeUncompressImageJ(&m_UncompJPEGContext);
}
XnStatus Init()
{
XnStatus nRetVal = XN_STATUS_OK;
nRetVal = XnStreamInitCompressImageJ(&m_CompJPEGContext);
XN_IS_STATUS_OK(nRetVal);
nRetVal = XnStreamInitUncompressImageJ(&m_UncompJPEGContext);
if (nRetVal != XN_STATUS_OK)
{
XnStreamFreeCompressImageJ(&m_CompJPEGContext);
return (nRetVal);
}
return (XN_STATUS_OK);
}
virtual XnCompressionFormats GetCompressionFormat() const { return XN_COMPRESSION_JPEG; }
virtual XnFloat GetWorseCompressionRatio() const { return XN_STREAM_COMPRESSION_IMAGEJ_WORSE_RATIO; }
virtual XnUInt32 GetOverheadSize() const { return 0; }
protected:
XN_DISABLE_COPY_AND_ASSIGN(XnJpegCodec);
virtual XnStatus CompressImpl(const XnUChar* pData, XnUInt32 /*nDataSize*/, XnUChar* pCompressedData, XnUInt32* pnCompressedDataSize)
{
if (m_bRGB)
{
return XnStreamCompressImage24J(&m_CompJPEGContext, pData, pCompressedData, pnCompressedDataSize, m_nXRes, m_nYRes, m_nQuality);
}
else
{
return XnStreamCompressImage8J(&m_CompJPEGContext, pData, pCompressedData, pnCompressedDataSize, m_nXRes, m_nYRes, m_nQuality);
}
}
virtual XnStatus DecompressImpl(const XnUChar* pCompressedData, XnUInt32 nCompressedDataSize, XnUChar* pData, XnUInt32* pnDataSize)
{
return XnStreamUncompressImageJ(&m_UncompJPEGContext, pCompressedData, nCompressedDataSize, pData, pnDataSize);
}
private:
const XnBool m_bRGB;
const XnUInt32 m_nXRes;
const XnUInt32 m_nYRes;
const XnUInt32 m_nQuality;
XnStreamCompJPEGContext m_CompJPEGContext;
XnStreamUncompJPEGContext m_UncompJPEGContext;
};
#endif //__XN_JPEG_CODEC_H__
|
