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 50 BaseImageDecoder::BaseImageDecoder() 51 { 52 m_width = m_height = 0; 53 m_type = -1; 54 m_buf_supported = false; 55 } 56 57 bool BaseImageDecoder::setSource( const String& filename ) 58 { 59 m_filename = filename; 60 m_buf.release(); 61 return true; 62 } 63 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 73 size_t BaseImageDecoder::signatureLength() const 74 { 75 return m_signature.size(); 76 } 77 78 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 84 ImageDecoder BaseImageDecoder::newDecoder() const 85 { 86 return ImageDecoder(); 87 } 88 89 BaseImageEncoder::BaseImageEncoder() 90 { 91 m_buf_supported = false; 92 } 93 94 bool BaseImageEncoder::isFormatSupported( int depth ) const 95 { 96 return depth == CV_8U; 97 } 98 99 String BaseImageEncoder::getDescription() const 100 { 101 return m_description; 102 } 103 104 bool BaseImageEncoder::setDestination( const String& filename ) 105 { 106 m_filename = filename; 107 m_buf = 0; 108 return true; 109 } 110 111 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 } 120 121 ImageEncoder BaseImageEncoder::newEncoder() const 122 { 123 return ImageEncoder(); 124 } 125 126 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
