Mercurial > hg > orthanc

annotate OrthancServer/Sources/DicomInstanceToStore.cpp @ 4704:f0038043fb97 openssl-3.x

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removed OpenSSL license exception, as OpenSSL 3.0 was relicensed under Apache 2.0
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 22 Jun 2021 07:37:20 +0200
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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) 2017-2021 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 * 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 * 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 General Public License
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 **/
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21
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22 #include "PrecompiledHeadersServer.h"
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23 #include "DicomInstanceToStore.h"
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25 #include "OrthancConfiguration.h"
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26
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27 #include "../../OrthancFramework/Sources/DicomParsing/FromDcmtkBridge.h"
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28 #include "../../OrthancFramework/Sources/DicomParsing/Internals/DicomFrameIndex.h"
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29 #include "../../OrthancFramework/Sources/DicomParsing/Internals/DicomImageDecoder.h"
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30 #include "../../OrthancFramework/Sources/DicomParsing/ParsedDicomFile.h"
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31 #include "../../OrthancFramework/Sources/Logging.h"
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32 #include "../../OrthancFramework/Sources/OrthancException.h"
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33
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34 #include <dcmtk/dcmdata/dcfilefo.h>
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35 #include <dcmtk/dcmdata/dcdeftag.h>
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38 namespace Orthanc
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39 {
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40 class DicomInstanceToStore::FromBuffer : public DicomInstanceToStore
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41 {
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42 private:
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43 const void* buffer_;
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44 size_t size_;
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45 std::unique_ptr<ParsedDicomFile> parsed_;
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46
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47 public:
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48 FromBuffer(const void* buffer,
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49 size_t size) :
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50 buffer_(buffer),
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51 size_(size)
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52 {
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53 }
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54
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55 virtual ParsedDicomFile& GetParsedDicomFile() const ORTHANC_OVERRIDE
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56 {
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57 if (parsed_.get() == NULL)
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58 {
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59 const_cast<FromBuffer&>(*this).parsed_.reset(new ParsedDicomFile(buffer_, size_));
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60 }
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61
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62 return *parsed_;
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63 }
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65 virtual const void* GetBufferData() const ORTHANC_OVERRIDE
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66 {
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67 return buffer_;
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68 }
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70 virtual size_t GetBufferSize() const ORTHANC_OVERRIDE
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71 {
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72 return size_;
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73 }
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74 };
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77 class DicomInstanceToStore::FromParsedDicomFile : public DicomInstanceToStore
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78 {
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79 private:
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80 ParsedDicomFile& parsed_;
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81 std::unique_ptr<std::string> buffer_;
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82
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83 void SerializeToBuffer()
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84 {
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85 if (buffer_.get() == NULL)
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86 {
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87 buffer_.reset(new std::string);
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88 parsed_.SaveToMemoryBuffer(*buffer_);
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89 }
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90 }
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92 public:
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93 explicit FromParsedDicomFile(ParsedDicomFile& parsed) :
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94 parsed_(parsed)
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95 {
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96 }
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98 virtual ParsedDicomFile& GetParsedDicomFile() const ORTHANC_OVERRIDE
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99 {
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100 return parsed_;
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101 }
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103 virtual const void* GetBufferData() const ORTHANC_OVERRIDE
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104 {
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105 const_cast<FromParsedDicomFile&>(*this).SerializeToBuffer();
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107 assert(buffer_.get() != NULL);
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108 return (buffer_->empty() ? NULL : buffer_->c_str());
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109 }
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111 virtual size_t GetBufferSize() const ORTHANC_OVERRIDE
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112 {
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113 const_cast<FromParsedDicomFile&>(*this).SerializeToBuffer();
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115 assert(buffer_.get() != NULL);
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116 return buffer_->size();
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117 }
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118 };
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120
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121 class DicomInstanceToStore::FromDcmDataset : public DicomInstanceToStore
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122 {
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123 private:
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124 DcmDataset& dataset_;
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125 std::unique_ptr<std::string> buffer_;
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126 std::unique_ptr<ParsedDicomFile> parsed_;
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127
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128 void SerializeToBuffer()
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129 {
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130 if (buffer_.get() == NULL)
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131 {
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132 buffer_.reset(new std::string);
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133
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134 if (!FromDcmtkBridge::SaveToMemoryBuffer(*buffer_, dataset_))
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135 {
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136 throw OrthancException(ErrorCode_InternalError, "Cannot write DICOM file to memory");
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137 }
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138 }
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139 }
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140
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141 public:
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142 explicit FromDcmDataset(DcmDataset& dataset) :
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143 dataset_(dataset)
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144 {
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145 }
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146
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147 virtual ParsedDicomFile& GetParsedDicomFile() const ORTHANC_OVERRIDE
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148 {
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149 if (parsed_.get() == NULL)
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150 {
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151 // This operation is costly, as it creates a clone of the
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152 // dataset. This explains why the default implementations
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153 // are overridden below to use "dataset_" as much as possible
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154 const_cast<FromDcmDataset&>(*this).parsed_.reset(new ParsedDicomFile(dataset_));
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155 }
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156
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157 return *parsed_;
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158 }
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159
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160 virtual const void* GetBufferData() const ORTHANC_OVERRIDE
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161 {
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162 const_cast<FromDcmDataset&>(*this).SerializeToBuffer();
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163
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164 assert(buffer_.get() != NULL);
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165 return (buffer_->empty() ? NULL : buffer_->c_str());
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166 }
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167
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168 virtual size_t GetBufferSize() const ORTHANC_OVERRIDE
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169 {
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170 const_cast<FromDcmDataset&>(*this).SerializeToBuffer();
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171
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172 assert(buffer_.get() != NULL);
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173 return buffer_->size();
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174 }
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175
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176 virtual bool HasPixelData() const ORTHANC_OVERRIDE
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177 {
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178 DcmTag key(DICOM_TAG_PIXEL_DATA.GetGroup(),
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179 DICOM_TAG_PIXEL_DATA.GetElement());
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180 return dataset_.tagExists(key);
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181 }
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182
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183 virtual void GetSummary(DicomMap& summary) const ORTHANC_OVERRIDE
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184 {
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185 OrthancConfiguration::DefaultExtractDicomSummary(summary, dataset_);
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186 }
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187
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188 virtual void GetDicomAsJson(Json::Value& dicomAsJson) const ORTHANC_OVERRIDE
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189 {
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190 OrthancConfiguration::DefaultDicomDatasetToJson(dicomAsJson, dataset_);
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191 }
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192
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193 virtual void DatasetToJson(Json::Value& target,
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194 DicomToJsonFormat format,
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195 DicomToJsonFlags flags,
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196 unsigned int maxStringLength) const ORTHANC_OVERRIDE
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197 {
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198 std::set<DicomTag> ignoreTagLength;
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199 FromDcmtkBridge::ExtractDicomAsJson(
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200 target, dataset_, format, flags, maxStringLength, ignoreTagLength);
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201 }
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202
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203 virtual unsigned int GetFramesCount() const ORTHANC_OVERRIDE
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204 {
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205 return DicomFrameIndex::GetFramesCount(dataset_);
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206 }
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207
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208 virtual ImageAccessor* DecodeFrame(unsigned int frame) const ORTHANC_OVERRIDE
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209 {
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210 return DicomImageDecoder::Decode(dataset_, frame);
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211 }
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212 };
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213
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214
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215 DicomInstanceToStore* DicomInstanceToStore::CreateFromBuffer(const void* buffer,
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216 size_t size)
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217 {
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218 return new FromBuffer(buffer, size);
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219 }
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220
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221
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222 DicomInstanceToStore* DicomInstanceToStore::CreateFromBuffer(const std::string& buffer)
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223 {
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224 return new FromBuffer(buffer.empty() ? NULL : buffer.c_str(), buffer.size());
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225 }
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226
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227
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228 DicomInstanceToStore* DicomInstanceToStore::CreateFromParsedDicomFile(ParsedDicomFile& dicom)
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229 {
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230 return new FromParsedDicomFile(dicom);
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231 }
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232
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233
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234 DicomInstanceToStore* DicomInstanceToStore::CreateFromDcmDataset(DcmDataset& dataset)
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235 {
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236 return new FromDcmDataset(dataset);
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237 }
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238
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239
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240 bool DicomInstanceToStore::LookupTransferSyntax(DicomTransferSyntax& result) const
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241 {
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242 DicomMap header;
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243 if (DicomMap::ParseDicomMetaInformation(header, GetBufferData(), GetBufferSize()))
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244 {
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245 const DicomValue* value = header.TestAndGetValue(DICOM_TAG_TRANSFER_SYNTAX_UID);
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246 if (value != NULL &&
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247 !value->IsBinary() &&
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248 !value->IsNull())
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249 {
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250 return ::Orthanc::LookupTransferSyntax(result, Toolbox::StripSpaces(value->GetContent()));
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251 }
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252 }
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253 else
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254 {
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255 // This is a DICOM file without a proper meta-header. Fallback
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256 // to DCMTK, which will fully parse the dataset to retrieve
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257 // the transfer syntax. Added in Orthanc 1.8.2.
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258 return GetParsedDicomFile().LookupTransferSyntax(result);
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259 }
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260
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261 return false;
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262 }
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263
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264
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265 bool DicomInstanceToStore::HasPixelData() const
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266 {
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267 return GetParsedDicomFile().HasTag(DICOM_TAG_PIXEL_DATA);
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268 }
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269
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270
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271 void DicomInstanceToStore::GetSummary(DicomMap& summary) const
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272 {
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273 OrthancConfiguration::DefaultExtractDicomSummary(summary, GetParsedDicomFile());
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274 }
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275
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276
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277 void DicomInstanceToStore::GetDicomAsJson(Json::Value& dicomAsJson) const
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278 {
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279 OrthancConfiguration::DefaultDicomDatasetToJson(dicomAsJson, GetParsedDicomFile());
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280 }
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281
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282
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283 void DicomInstanceToStore::DatasetToJson(Json::Value& target,
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284 DicomToJsonFormat format,
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285 DicomToJsonFlags flags,
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286 unsigned int maxStringLength) const
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287 {
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288 return GetParsedDicomFile().DatasetToJson(target, format, flags, maxStringLength);
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289 }
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290
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291
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292 unsigned int DicomInstanceToStore::GetFramesCount() const
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293 {
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294 return GetParsedDicomFile().GetFramesCount();
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295 }
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296
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297
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298 ImageAccessor* DicomInstanceToStore::DecodeFrame(unsigned int frame) const
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299 {
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300 return GetParsedDicomFile().DecodeFrame(frame);
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301 }
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302 }