annotate OrthancFramework/Sources/DicomParsing/FromDcmtkBridge.h @ 4334:b2366bc023f8

Fix access to videos as a single raw frame
author Sebastien Jodogne <s.jodogne@gmail.com>
date Mon, 30 Nov 2020 16:33:40 +0100
parents 785a2713323e
children 3af1d763763a
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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) 2017-2020 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 Lesser General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Lesser General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Lesser General Public
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18 * License along with this program. If not, see
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19 * <http://www.gnu.org/licenses/>.
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20 **/
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23 #pragma once
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24
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25 #include "ITagVisitor.h"
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26 #include "../DicomFormat/DicomElement.h"
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27 #include "../DicomFormat/DicomMap.h"
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29 #include <dcmtk/dcmdata/dcdatset.h>
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30 #include <dcmtk/dcmdata/dcmetinf.h>
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31 #include <dcmtk/dcmdata/dcpixseq.h>
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32 #include <dcmtk/dcmdata/dcfilefo.h>
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33 #include <json/json.h>
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34
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35 #if ORTHANC_ENABLE_DCMTK != 1
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36 # error The macro ORTHANC_ENABLE_DCMTK must be set to 1
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37 #endif
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38
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39 #if ORTHANC_BUILD_UNIT_TESTS == 1
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40 # include <gtest/gtest_prod.h>
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41 #endif
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42
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43 #if !defined(ORTHANC_ENABLE_DCMTK_JPEG)
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44 # error The macro ORTHANC_ENABLE_DCMTK_JPEG must be defined
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45 #endif
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46
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47 #if !defined(ORTHANC_ENABLE_DCMTK_JPEG_LOSSLESS)
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48 # error The macro ORTHANC_ENABLE_DCMTK_JPEG_LOSSLESS must be defined
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49 #endif
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50
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51
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52 namespace Orthanc
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53 {
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54 class ORTHANC_PUBLIC FromDcmtkBridge : public boost::noncopyable
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55 {
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56 #if ORTHANC_BUILD_UNIT_TESTS == 1
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57 FRIEND_TEST(FromDcmtkBridge, FromJson);
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58 #endif
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59
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60 friend class ParsedDicomFile;
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61
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62 private:
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63 FromDcmtkBridge(); // Pure static class
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64
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65 static void DatasetToJson(Json::Value& parent,
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66 DcmItem& item,
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67 DicomToJsonFormat format,
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68 DicomToJsonFlags flags,
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69 unsigned int maxStringLength,
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70 Encoding encoding,
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71 bool hasCodeExtensions,
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72 const std::set<DicomTag>& ignoreTagLength);
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73
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74 static void ElementToJson(Json::Value& parent,
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75 DcmElement& element,
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76 DicomToJsonFormat format,
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77 DicomToJsonFlags flags,
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78 unsigned int maxStringLength,
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79 Encoding dicomEncoding,
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80 bool hasCodeExtensions,
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81 const std::set<DicomTag>& ignoreTagLength);
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82
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83 static void ChangeStringEncoding(DcmItem& dataset,
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84 Encoding source,
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85 bool hasSourceCodeExtensions,
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86 Encoding target);
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87
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88 public:
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89 static void InitializeDictionary(bool loadPrivateDictionary);
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91 static void RegisterDictionaryTag(const DicomTag& tag,
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92 ValueRepresentation vr,
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93 const std::string& name,
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94 unsigned int minMultiplicity,
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95 unsigned int maxMultiplicity,
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96 const std::string& privateCreator);
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97
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98 static Encoding DetectEncoding(bool& hasCodeExtensions,
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99 DcmItem& dataset,
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100 Encoding defaultEncoding);
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101
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102 // Compatibility wrapper for Orthanc <= 1.5.4
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103 static Encoding DetectEncoding(DcmItem& dataset,
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104 Encoding defaultEncoding);
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105
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106 static DicomTag Convert(const DcmTag& tag);
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107
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108 static DicomTag GetTag(const DcmElement& element);
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109
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110 static bool IsUnknownTag(const DicomTag& tag);
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111
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112 static DicomValue* ConvertLeafElement(DcmElement& element,
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113 DicomToJsonFlags flags,
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114 unsigned int maxStringLength,
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115 Encoding encoding,
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116 bool hasCodeExtensions,
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117 const std::set<DicomTag>& ignoreTagLength);
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118
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119 static void ExtractHeaderAsJson(Json::Value& target,
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120 DcmMetaInfo& header,
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121 DicomToJsonFormat format,
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122 DicomToJsonFlags flags,
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123 unsigned int maxStringLength);
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124
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125 static std::string GetTagName(const DicomTag& tag,
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126 const std::string& privateCreator);
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127
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128 static std::string GetTagName(const DcmElement& element);
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129
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130 static std::string GetTagName(const DicomElement& element);
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131
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132 static DicomTag ParseTag(const char* name);
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133
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134 static DicomTag ParseTag(const std::string& name);
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135
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136 static bool HasTag(const DicomMap& fields,
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137 const std::string& tagName);
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138
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139 static const DicomValue& GetValue(const DicomMap& fields,
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140 const std::string& tagName);
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141
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142 static void SetValue(DicomMap& target,
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143 const std::string& tagName,
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144 DicomValue* value);
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145
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146 static void ToJson(Json::Value& result,
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147 const DicomMap& values,
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148 bool simplify);
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149
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150 static std::string GenerateUniqueIdentifier(ResourceType level);
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151
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152 static bool SaveToMemoryBuffer(std::string& buffer,
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153 DcmDataset& dataSet);
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154
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155 static bool Transcode(DcmFileFormat& dicom,
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156 DicomTransferSyntax syntax,
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157 const DcmRepresentationParameter* representation);
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158
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159 static ValueRepresentation Convert(DcmEVR vr);
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160
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161 static ValueRepresentation LookupValueRepresentation(const DicomTag& tag);
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162
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163 static DcmElement* CreateElementForTag(const DicomTag& tag,
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164 const std::string& privateCreator);
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165
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166 static void FillElementWithString(DcmElement& element,
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167 const std::string& utf8alue, // Encoded using UTF-8
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168 bool decodeDataUriScheme,
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169 Encoding dicomEncoding);
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170
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171 static DcmElement* FromJson(const DicomTag& tag,
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172 const Json::Value& element, // Encoded using UTF-8
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173 bool decodeDataUriScheme,
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174 Encoding dicomEncoding,
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175 const std::string& privateCreator);
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176
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177 static DcmPixelSequence* GetPixelSequence(DcmDataset& dataset);
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178
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179 static Encoding ExtractEncoding(const Json::Value& json,
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180 Encoding defaultEncoding);
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181
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182 static DcmDataset* FromJson(const Json::Value& json, // Encoded using UTF-8
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183 bool generateIdentifiers,
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184 bool decodeDataUriScheme,
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185 Encoding defaultEncoding,
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186 const std::string& privateCreator);
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187
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188 static DcmFileFormat* LoadFromMemoryBuffer(const void* buffer,
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189 size_t size);
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190
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191 static void FromJson(DicomMap& values,
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192 const Json::Value& result);
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193
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194 static void ExtractDicomSummary(DicomMap& target,
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195 DcmItem& dataset,
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196 unsigned int maxStringLength,
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197 const std::set<DicomTag>& ignoreTagLength);
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198
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199 static void ExtractDicomAsJson(Json::Value& target,
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200 DcmDataset& dataset,
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201 DicomToJsonFormat format,
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202 DicomToJsonFlags flags,
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203 unsigned int maxStringLength,
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204 const std::set<DicomTag>& ignoreTagLength);
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205
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206 static void InitializeCodecs();
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207
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208 static void FinalizeCodecs();
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209
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210 static void Apply(DcmItem& dataset,
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211 ITagVisitor& visitor,
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212 Encoding defaultEncoding);
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213
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214 static bool LookupDcmtkTransferSyntax(E_TransferSyntax& target,
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215 DicomTransferSyntax source);
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216
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217 static bool LookupOrthancTransferSyntax(DicomTransferSyntax& target,
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218 E_TransferSyntax source);
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219
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220 static bool LookupOrthancTransferSyntax(DicomTransferSyntax& target,
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221 DcmFileFormat& dicom);
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222
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223 static bool LookupOrthancTransferSyntax(DicomTransferSyntax& target,
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224 DcmDataset& dicom);
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225 };
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226 }