Mercurial > hg > orthanc
annotate Core/DicomParsing/MemoryBufferTranscoder.cpp @ 3906:f0dd5ded8927 transcoding
refactoring using IDicomTranscoder::TranscodedDicom
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 08 May 2020 11:16:16 +0200 |
parents | 061f3d031b5d |
children | 1555feda39e2 |
rev | line source |
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3893 | 1 /** |
2 * Orthanc - A Lightweight, RESTful DICOM Store | |
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
4 * Department, University Hospital of Liege, Belgium | |
5 * Copyright (C) 2017-2020 Osimis S.A., Belgium | |
6 * | |
7 * This program is free software: you can redistribute it and/or | |
8 * modify it under the terms of the GNU General Public License as | |
9 * published by the Free Software Foundation, either version 3 of the | |
10 * License, or (at your option) any later version. | |
11 * | |
12 * In addition, as a special exception, the copyright holders of this | |
13 * program give permission to link the code of its release with the | |
14 * OpenSSL project's "OpenSSL" library (or with modified versions of it | |
15 * that use the same license as the "OpenSSL" library), and distribute | |
16 * the linked executables. You must obey the GNU General Public License | |
17 * in all respects for all of the code used other than "OpenSSL". If you | |
18 * modify file(s) with this exception, you may extend this exception to | |
19 * your version of the file(s), but you are not obligated to do so. If | |
20 * you do not wish to do so, delete this exception statement from your | |
21 * version. If you delete this exception statement from all source files | |
22 * in the program, then also delete it here. | |
23 * | |
24 * This program is distributed in the hope that it will be useful, but | |
25 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
27 * General Public License for more details. | |
28 * | |
29 * You should have received a copy of the GNU General Public License | |
30 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
31 **/ | |
32 | |
33 | |
34 #include "../PrecompiledHeaders.h" | |
35 #include "MemoryBufferTranscoder.h" | |
36 | |
37 #include "../OrthancException.h" | |
38 #include "FromDcmtkBridge.h" | |
39 | |
40 namespace Orthanc | |
41 { | |
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42 MemoryBufferTranscoder::MemoryBufferTranscoder() |
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43 { |
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44 #if ORTHANC_ENABLE_DCMTK_TRANSCODING == 1 |
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45 useDcmtk_ = true; |
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46 #else |
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47 useDcmtk_ = false; |
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48 #endif |
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49 } |
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50 |
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51 |
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52 void MemoryBufferTranscoder::SetDcmtkUsed(bool used) |
3893 | 53 { |
54 #if ORTHANC_ENABLE_DCMTK_TRANSCODING != 1 | |
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55 if (useDcmtk) |
3893 | 56 { |
57 throw OrthancException(ErrorCode_NotImplemented, | |
58 "Orthanc was built without support for DMCTK transcoding"); | |
59 } | |
60 #endif | |
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61 |
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62 useDcmtk_ = used; |
3893 | 63 } |
64 | |
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65 |
3893 | 66 bool MemoryBufferTranscoder::TranscodeToBuffer(std::string& target, |
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67 bool& hasSopInstanceUidChanged, |
3893 | 68 const void* buffer, |
69 size_t size, | |
70 const std::set<DicomTransferSyntax>& allowedSyntaxes, | |
71 bool allowNewSopInstanceUid) | |
72 { | |
73 #if ORTHANC_ENABLE_DCMTK_TRANSCODING == 1 | |
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74 if (useDcmtk_) |
3893 | 75 { |
3905 | 76 if (dcmtk_.TranscodeToBuffer(target, hasSopInstanceUidChanged, buffer, |
77 size, allowedSyntaxes, allowNewSopInstanceUid)) | |
78 { | |
79 return true; | |
80 } | |
3893 | 81 } |
82 #endif | |
3905 | 83 |
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84 DicomTransferSyntax sourceSyntax, targetSyntax; |
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85 return Transcode(target, sourceSyntax, targetSyntax, hasSopInstanceUidChanged, buffer, size, |
3905 | 86 allowedSyntaxes, allowNewSopInstanceUid); |
3893 | 87 } |
88 | |
89 | |
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90 DcmFileFormat* MemoryBufferTranscoder::TranscodeToParsed(bool& hasSopInstanceUidChanged, |
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91 const void* buffer, |
3893 | 92 size_t size, |
93 const std::set<DicomTransferSyntax>& allowedSyntaxes, | |
94 bool allowNewSopInstanceUid) | |
95 { | |
96 #if ORTHANC_ENABLE_DCMTK_TRANSCODING == 1 | |
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97 if (useDcmtk_) |
3893 | 98 { |
3905 | 99 std::unique_ptr<DcmFileFormat> transcoded( |
100 dcmtk_.TranscodeToParsed(hasSopInstanceUidChanged, buffer, size, | |
101 allowedSyntaxes, allowNewSopInstanceUid)); | |
102 if (transcoded.get() != NULL) | |
103 { | |
104 return transcoded.release(); | |
105 } | |
106 } | |
107 #endif | |
108 | |
109 std::string transcoded; | |
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110 DicomTransferSyntax sourceSyntax, targetSyntax; |
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111 if (Transcode(transcoded, sourceSyntax, targetSyntax, hasSopInstanceUidChanged, |
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112 buffer, size, allowedSyntaxes, allowNewSopInstanceUid)) |
3905 | 113 { |
114 return FromDcmtkBridge::LoadFromMemoryBuffer( | |
115 transcoded.empty() ? NULL : transcoded.c_str(), transcoded.size()); | |
3893 | 116 } |
117 else | |
118 { | |
3905 | 119 return NULL; |
3893 | 120 } |
121 } | |
122 | |
123 | |
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124 bool MemoryBufferTranscoder::HasInplaceTranscode( |
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125 DicomTransferSyntax inputSyntax, |
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126 const std::set<DicomTransferSyntax>& outputSyntaxes) const |
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127 { |
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128 /** |
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129 * Inplace transcoding is only possible if DCMTK is enabled, and |
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130 * if DCMTK supports all the requested transfer |
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131 * syntaxes. Otherwise, one has to call the "buffer-to-buffer" |
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132 * transcoder. |
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133 **/ |
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134 |
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135 #if ORTHANC_ENABLE_DCMTK_TRANSCODING == 1 |
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136 if (useDcmtk_) |
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137 { |
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138 if (!DcmtkTranscoder::IsSupported(inputSyntax)) |
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139 { |
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140 return false; |
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141 } |
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142 |
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143 for (std::set<DicomTransferSyntax>::const_iterator |
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144 it = outputSyntaxes.begin(); it != outputSyntaxes.end(); ++it) |
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145 { |
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146 if (!DcmtkTranscoder::IsSupported(*it)) |
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147 { |
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148 return false; |
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149 } |
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150 } |
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151 |
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152 return true; |
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153 } |
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154 else |
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155 #endif |
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156 { |
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157 return false; |
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158 } |
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159 } |
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160 |
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161 |
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162 bool MemoryBufferTranscoder::InplaceTranscode(bool& hasSopInstanceUidChanged, |
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163 DcmFileFormat& dicom, |
3893 | 164 const std::set<DicomTransferSyntax>& allowedSyntaxes, |
165 bool allowNewSopInstanceUid) | |
166 { | |
167 #if ORTHANC_ENABLE_DCMTK_TRANSCODING == 1 | |
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168 DicomTransferSyntax inputSyntax; |
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169 if (useDcmtk_ && |
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170 FromDcmtkBridge::LookupOrthancTransferSyntax(inputSyntax, dicom) && |
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171 HasInplaceTranscode(inputSyntax, allowedSyntaxes)) |
3893 | 172 { |
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173 return dcmtk_.InplaceTranscode(hasSopInstanceUidChanged, dicom, allowedSyntaxes, allowNewSopInstanceUid); |
3893 | 174 } |
175 else | |
176 #endif | |
177 { | |
178 // "HasInplaceTranscode()" should have been called | |
179 throw OrthancException(ErrorCode_BadSequenceOfCalls); | |
180 } | |
181 } | |
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182 |
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183 |
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184 |
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185 |
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186 bool MemoryBufferTranscoder::TranscodeParsedToBuffer( |
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187 std::string& target /* out */, |
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188 DicomTransferSyntax& sourceSyntax /* out */, |
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189 DicomTransferSyntax& targetSyntax /* out */, |
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190 bool& hasSopInstanceUidChanged /* out */, |
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191 DcmFileFormat& dicom /* in, possibly modified */, |
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192 const std::set<DicomTransferSyntax>& allowedSyntaxes, |
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193 bool allowNewSopInstanceUid) |
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194 { |
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195 if (dicom.getDataset() == NULL) |
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196 { |
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197 throw OrthancException(ErrorCode_InternalError); |
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198 } |
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199 |
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200 std::string source; |
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201 FromDcmtkBridge::SaveToMemoryBuffer(source, *dicom.getDataset()); |
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202 |
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203 const void* data = source.empty() ? NULL : source.c_str(); |
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204 |
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205 bool success = Transcode(target, sourceSyntax, targetSyntax, hasSopInstanceUidChanged, |
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206 data, source.size(), allowedSyntaxes, allowNewSopInstanceUid); |
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207 |
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208 #if ORTHANC_ENABLE_DCMTK_TRANSCODING == 1 |
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209 if (useDcmtk_ && |
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210 dcmtk_.TranscodeParsedToBuffer( |
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211 target, sourceSyntax, targetSyntax,hasSopInstanceUidChanged, |
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212 dicom, allowedSyntaxes, allowNewSopInstanceUid)) |
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213 { |
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214 success = true; |
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215 } |
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216 #endif |
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217 |
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218 return success; |
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219 } |
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220 |
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221 |
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222 IDicomTranscoder::TranscodedDicom* MemoryBufferTranscoder::TranscodeToParsed2( |
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223 DcmFileFormat& dicom /* in, possibly modified */, |
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224 const void* buffer /* in, same DICOM file as "dicom" */, |
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225 size_t size, |
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226 const std::set<DicomTransferSyntax>& allowedSyntaxes, |
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227 bool allowNewSopInstanceUid) |
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228 { |
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229 DicomTransferSyntax sourceSyntax, targetSyntax; |
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230 bool hasSopInstanceUidChanged; |
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231 |
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232 std::string target; |
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233 if (Transcode(target, sourceSyntax, targetSyntax, hasSopInstanceUidChanged, |
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234 buffer, size, allowedSyntaxes, allowNewSopInstanceUid)) |
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235 { |
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236 const void* data = target.empty() ? NULL : target.c_str(); |
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237 return IDicomTranscoder::TranscodedDicom::CreateFromInternal( |
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238 FromDcmtkBridge::LoadFromMemoryBuffer(data, target.size()), hasSopInstanceUidChanged); |
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239 } |
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240 #if ORTHANC_ENABLE_DCMTK_TRANSCODING == 1 |
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241 else if (useDcmtk_) |
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242 { |
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243 return dcmtk_.TranscodeToParsed2(dicom, buffer, size, allowedSyntaxes, allowNewSopInstanceUid); |
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244 } |
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245 #endif |
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246 else |
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247 { |
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248 return NULL; |
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249 } |
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250 } |
3893 | 251 } |