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annotate Core/DicomParsing/FromDcmtkBridge.h @ 2919:2ca9cd064b15

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PamReader::ReadFromMemory
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 06 Nov 2018 15:41:21 +0100
parents 83b8b6743531
children 4e43e67f8ecf
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2018 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU General Public License as
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9 * published by the Free Software Foundation, either version 3 of the
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10 * License, or (at your option) any later version.
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11 *
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12 * In addition, as a special exception, the copyright holders of this
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13 * program give permission to link the code of its release with the
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14 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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15 * that use the same license as the "OpenSSL" library), and distribute
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16 * the linked executables. You must obey the GNU General Public License
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17 * in all respects for all of the code used other than "OpenSSL". If you
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18 * modify file(s) with this exception, you may extend this exception to
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19 * your version of the file(s), but you are not obligated to do so. If
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20 * you do not wish to do so, delete this exception statement from your
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21 * version. If you delete this exception statement from all source files
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22 * in the program, then also delete it here.
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23 *
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24 * This program is distributed in the hope that it will be useful, but
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25 * WITHOUT ANY WARRANTY; without even the implied warranty of
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26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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27 * General Public License for more details.
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28 *
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29 * You should have received a copy of the GNU General Public License
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30 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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31 **/
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34 #pragma once
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35
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36 #include "ITagVisitor.h"
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37 #include "../DicomFormat/DicomElement.h"
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38 #include "../DicomFormat/DicomMap.h"
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39
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40 #include <dcmtk/dcmdata/dcdatset.h>
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41 #include <dcmtk/dcmdata/dcmetinf.h>
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42 #include <dcmtk/dcmdata/dcpixseq.h>
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43 #include <dcmtk/dcmdata/dcfilefo.h>
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44 #include <json/json.h>
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45
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46 #if !defined(ORTHANC_ENABLE_LUA)
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47 # error The macro ORTHANC_ENABLE_LUA must be defined
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48 #endif
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49
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50 #if ORTHANC_ENABLE_DCMTK != 1
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51 # error The macro ORTHANC_ENABLE_DCMTK must be set to 1
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52 #endif
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53
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54 #if ORTHANC_BUILD_UNIT_TESTS == 1
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55 # include <gtest/gtest_prod.h>
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56 #endif
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57
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58 #if ORTHANC_ENABLE_LUA == 1
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59 # include "../Lua/LuaFunctionCall.h"
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60 #endif
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61
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62 #if !defined(ORTHANC_ENABLE_DCMTK_JPEG)
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63 # error The macro ORTHANC_ENABLE_DCMTK_JPEG must be defined
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64 #endif
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66 #if !defined(ORTHANC_ENABLE_DCMTK_JPEG_LOSSLESS)
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67 # error The macro ORTHANC_ENABLE_DCMTK_JPEG_LOSSLESS must be defined
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68 #endif
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71 namespace Orthanc
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72 {
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73 class FromDcmtkBridge : public boost::noncopyable
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74 {
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75 #if ORTHANC_BUILD_UNIT_TESTS == 1
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76 FRIEND_TEST(FromDcmtkBridge, FromJson);
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77 #endif
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78
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79 friend class ParsedDicomFile;
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81 private:
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82 FromDcmtkBridge(); // Pure static class
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83
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84 static void ExtractDicomSummary(DicomMap& target,
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85 DcmItem& dataset,
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86 unsigned int maxStringLength,
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87 Encoding defaultEncoding);
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88
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89 static void DatasetToJson(Json::Value& parent,
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90 DcmItem& item,
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91 DicomToJsonFormat format,
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92 DicomToJsonFlags flags,
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93 unsigned int maxStringLength,
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94 Encoding encoding,
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95 const std::set<DicomTag>& ignoreTagLength);
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96
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97 static void ElementToJson(Json::Value& parent,
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98 DcmElement& element,
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99 DicomToJsonFormat format,
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100 DicomToJsonFlags flags,
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101 unsigned int maxStringLength,
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102 Encoding dicomEncoding,
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103 const std::set<DicomTag>& ignoreTagLength);
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104
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105 static void ExtractDicomAsJson(Json::Value& target,
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106 DcmDataset& dataset,
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107 DicomToJsonFormat format,
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108 DicomToJsonFlags flags,
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109 unsigned int maxStringLength,
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110 Encoding defaultEncoding,
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111 const std::set<DicomTag>& ignoreTagLength);
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112
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113 static void ChangeStringEncoding(DcmItem& dataset,
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114 Encoding source,
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115 Encoding target);
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116
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117 public:
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118 static void InitializeDictionary(bool loadPrivateDictionary);
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119
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120 static void RegisterDictionaryTag(const DicomTag& tag,
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121 ValueRepresentation vr,
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122 const std::string& name,
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123 unsigned int minMultiplicity,
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124 unsigned int maxMultiplicity,
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125 const std::string& privateCreator);
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126
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127 static Encoding DetectEncoding(DcmItem& dataset,
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128 Encoding defaultEncoding);
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129
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130 static DicomTag Convert(const DcmTag& tag);
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131
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132 static DicomTag GetTag(const DcmElement& element);
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133
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134 static bool IsUnknownTag(const DicomTag& tag);
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135
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136 static DicomValue* ConvertLeafElement(DcmElement& element,
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137 DicomToJsonFlags flags,
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138 unsigned int maxStringLength,
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139 Encoding encoding,
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140 const std::set<DicomTag>& ignoreTagLength);
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141
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142 static void ExtractHeaderAsJson(Json::Value& target,
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143 DcmMetaInfo& header,
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144 DicomToJsonFormat format,
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145 DicomToJsonFlags flags,
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146 unsigned int maxStringLength);
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147
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148 static std::string GetTagName(const DicomTag& tag,
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149 const std::string& privateCreator);
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150
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151 static std::string GetTagName(const DcmElement& element);
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152
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153 static std::string GetTagName(const DicomElement& element)
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154 {
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155 return GetTagName(element.GetTag(), "");
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156 }
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157
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158 static DicomTag ParseTag(const char* name);
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159
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160 static DicomTag ParseTag(const std::string& name)
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161 {
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162 return ParseTag(name.c_str());
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163 }
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164
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165 static bool HasTag(const DicomMap& fields,
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166 const std::string& tagName)
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167 {
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168 return fields.HasTag(ParseTag(tagName));
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169 }
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170
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171 static const DicomValue& GetValue(const DicomMap& fields,
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172 const std::string& tagName)
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173 {
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174 return fields.GetValue(ParseTag(tagName));
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175 }
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176
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177 static void SetValue(DicomMap& target,
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178 const std::string& tagName,
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179 DicomValue* value)
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180 {
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181 target.SetValue(ParseTag(tagName), value);
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182 }
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183
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184 static void ToJson(Json::Value& result,
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185 const DicomMap& values,
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186 bool simplify);
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187
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188 static std::string GenerateUniqueIdentifier(ResourceType level);
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189
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190 static bool SaveToMemoryBuffer(std::string& buffer,
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191 DcmDataset& dataSet);
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192
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193 static ValueRepresentation Convert(DcmEVR vr);
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194
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195 static ValueRepresentation LookupValueRepresentation(const DicomTag& tag);
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196
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197 static DcmElement* CreateElementForTag(const DicomTag& tag);
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198
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199 static void FillElementWithString(DcmElement& element,
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200 const DicomTag& tag,
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201 const std::string& utf8alue, // Encoded using UTF-8
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202 bool decodeDataUriScheme,
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203 Encoding dicomEncoding);
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204
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205 static DcmElement* FromJson(const DicomTag& tag,
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206 const Json::Value& element, // Encoded using UTF-8
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207 bool decodeDataUriScheme,
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208 Encoding dicomEncoding);
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209
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210 static DcmPixelSequence* GetPixelSequence(DcmDataset& dataset);
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211
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212 static Encoding ExtractEncoding(const Json::Value& json,
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213 Encoding defaultEncoding);
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214
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215 static DcmDataset* FromJson(const Json::Value& json, // Encoded using UTF-8
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216 bool generateIdentifiers,
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217 bool decodeDataUriScheme,
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218 Encoding defaultEncoding);
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219
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220 static DcmFileFormat* LoadFromMemoryBuffer(const void* buffer,
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221 size_t size);
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222
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223 static void FromJson(DicomMap& values,
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224 const Json::Value& result);
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225
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226 static bool LookupTransferSyntax(std::string& result,
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227 DcmFileFormat& dicom);
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228
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229 #if ORTHANC_ENABLE_LUA == 1
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230 static void ExecuteToDicom(DicomMap& target,
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231 LuaFunctionCall& call);
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232 #endif
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233
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234 static void ExtractDicomSummary(DicomMap& target,
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235 DcmItem& dataset);
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236
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237 static void ExtractDicomAsJson(Json::Value& target,
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238 DcmDataset& dataset,
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239 const std::set<DicomTag>& ignoreTagLength);
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240
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241 static void InitializeCodecs();
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242
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243 static void FinalizeCodecs();
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244
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245 static void Apply(DcmItem& dataset,
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246 ITagVisitor& visitor,
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247 Encoding defaultEncoding);
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248 };
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249 }