1 /*M///////////////////////////////////////////////////////////////////////////////////////
2 //
3 // IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
4 //
5 // By downloading, copying, installing or using the software you agree to this license.
6 // If you do not agree to this license, do not download, install,
7 // copy or use the software.
8 //
9 //
10 // Intel License Agreement
11 // For Open Source Computer Vision Library
12 //
13 // Copyright (C) 2000, Intel Corporation, all rights reserved.
14 // Third party copyrights are property of their respective owners.
15 //
16 // Redistribution and use in source and binary forms, with or without modification,
17 // are permitted provided that the following conditions are met:
18 //
19 // * Redistribution's of source code must retain the above copyright notice,
20 // this list of conditions and the following disclaimer.
21 //
22 // * Redistribution's in binary form must reproduce the above copyright notice,
23 // this list of conditions and the following disclaimer in the documentation
24 // and/or other materials provided with the distribution.
25 //
26 // * The name of Intel Corporation may not be used to endorse or promote products
27 // derived from this software without specific prior written permission.
28 //
29 // This software is provided by the copyright holders and contributors "as is" and
30 // any express or implied warranties, including, but not limited to, the implied
31 // warranties of merchantability and fitness for a particular purpose are disclaimed.
32 // In no event shall the Intel Corporation or contributors be liable for any direct,
33 // indirect, incidental, special, exemplary, or consequential damages
34 // (including, but not limited to, procurement of substitute goods or services;
35 // loss of use, data, or profits; or business interruption) however caused
36 // and on any theory of liability, whether in contract, strict liability,
37 // or tort (including negligence or otherwise) arising in any way out of
38 // the use of this software, even if advised of the possibility of such damage.
39 //
40 //M*/
41
42 #include "precomp.hpp"
43
44 #include "grfmt_base.hpp"
45 #include "bitstrm.hpp"
46
47 namespace cv
48 {
49
BaseImageDecoder()50 BaseImageDecoder::BaseImageDecoder()
51 {
52 m_width = m_height = 0;
53 m_type = -1;
54 m_buf_supported = false;
55 }
56
setSource(const String & filename)57 bool BaseImageDecoder::setSource( const String& filename )
58 {
59 m_filename = filename;
60 m_buf.release();
61 return true;
62 }
63
setSource(const Mat & buf)64 bool BaseImageDecoder::setSource( const Mat& buf )
65 {
66 if( !m_buf_supported )
67 return false;
68 m_filename = String();
69 m_buf = buf;
70 return true;
71 }
72
signatureLength() const73 size_t BaseImageDecoder::signatureLength() const
74 {
75 return m_signature.size();
76 }
77
checkSignature(const String & signature) const78 bool BaseImageDecoder::checkSignature( const String& signature ) const
79 {
80 size_t len = signatureLength();
81 return signature.size() >= len && memcmp( signature.c_str(), m_signature.c_str(), len ) == 0;
82 }
83
newDecoder() const84 ImageDecoder BaseImageDecoder::newDecoder() const
85 {
86 return ImageDecoder();
87 }
88
BaseImageEncoder()89 BaseImageEncoder::BaseImageEncoder()
90 {
91 m_buf_supported = false;
92 }
93
isFormatSupported(int depth) const94 bool BaseImageEncoder::isFormatSupported( int depth ) const
95 {
96 return depth == CV_8U;
97 }
98
getDescription() const99 String BaseImageEncoder::getDescription() const
100 {
101 return m_description;
102 }
103
setDestination(const String & filename)104 bool BaseImageEncoder::setDestination( const String& filename )
105 {
106 m_filename = filename;
107 m_buf = 0;
108 return true;
109 }
110
setDestination(std::vector<uchar> & buf)111 bool BaseImageEncoder::setDestination( std::vector<uchar>& buf )
112 {
113 if( !m_buf_supported )
114 return false;
115 m_buf = &buf;
116 m_buf->clear();
117 m_filename = String();
118 return true;
119 }
120
newEncoder() const121 ImageEncoder BaseImageEncoder::newEncoder() const
122 {
123 return ImageEncoder();
124 }
125
throwOnEror() const126 void BaseImageEncoder::throwOnEror() const
127 {
128 if(!m_last_error.empty())
129 {
130 String msg = "Raw image encoder error: " + m_last_error;
131 CV_Error( CV_BadImageSize, msg.c_str() );
132 }
133 }
134
135 }
136
137 /* End of file. */
138