Mercurial > hg > orthanc
annotate Core/DicomParsing/MemoryBufferTranscoder.cpp @ 3905:061f3d031b5d transcoding
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author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 08 May 2020 08:27:18 +0200 |
parents | c62f84c7eda9 |
children | f0dd5ded8927 |
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 |
84 return Transcode(target, hasSopInstanceUidChanged, buffer, size, | |
85 allowedSyntaxes, allowNewSopInstanceUid); | |
3893 | 86 } |
87 | |
88 | |
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89 DcmFileFormat* MemoryBufferTranscoder::TranscodeToParsed(bool& hasSopInstanceUidChanged, |
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90 const void* buffer, |
3893 | 91 size_t size, |
92 const std::set<DicomTransferSyntax>& allowedSyntaxes, | |
93 bool allowNewSopInstanceUid) | |
94 { | |
95 #if ORTHANC_ENABLE_DCMTK_TRANSCODING == 1 | |
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96 if (useDcmtk_) |
3893 | 97 { |
3905 | 98 std::unique_ptr<DcmFileFormat> transcoded( |
99 dcmtk_.TranscodeToParsed(hasSopInstanceUidChanged, buffer, size, | |
100 allowedSyntaxes, allowNewSopInstanceUid)); | |
101 if (transcoded.get() != NULL) | |
102 { | |
103 return transcoded.release(); | |
104 } | |
105 } | |
106 #endif | |
107 | |
108 std::string transcoded; | |
109 if (Transcode(transcoded, hasSopInstanceUidChanged, buffer, size, allowedSyntaxes, allowNewSopInstanceUid)) | |
110 { | |
111 return FromDcmtkBridge::LoadFromMemoryBuffer( | |
112 transcoded.empty() ? NULL : transcoded.c_str(), transcoded.size()); | |
3893 | 113 } |
114 else | |
115 { | |
3905 | 116 return NULL; |
3893 | 117 } |
118 } | |
119 | |
120 | |
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121 bool MemoryBufferTranscoder::HasInplaceTranscode( |
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122 DicomTransferSyntax inputSyntax, |
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123 const std::set<DicomTransferSyntax>& outputSyntaxes) const |
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124 { |
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125 /** |
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126 * Inplace transcoding is only possible if DCMTK is enabled, and |
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127 * if DCMTK supports all the requested transfer |
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128 * syntaxes. Otherwise, one has to call the "buffer-to-buffer" |
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129 * transcoder. |
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130 **/ |
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131 |
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132 #if ORTHANC_ENABLE_DCMTK_TRANSCODING == 1 |
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133 if (useDcmtk_) |
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134 { |
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135 if (!DcmtkTranscoder::IsSupported(inputSyntax)) |
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136 { |
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137 return false; |
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138 } |
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139 |
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140 for (std::set<DicomTransferSyntax>::const_iterator |
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141 it = outputSyntaxes.begin(); it != outputSyntaxes.end(); ++it) |
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142 { |
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143 if (!DcmtkTranscoder::IsSupported(*it)) |
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144 { |
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145 return false; |
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146 } |
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147 } |
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148 |
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149 return true; |
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150 } |
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151 else |
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152 #endif |
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153 { |
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154 return false; |
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155 } |
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156 } |
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157 |
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158 |
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159 bool MemoryBufferTranscoder::InplaceTranscode(bool& hasSopInstanceUidChanged, |
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160 DcmFileFormat& dicom, |
3893 | 161 const std::set<DicomTransferSyntax>& allowedSyntaxes, |
162 bool allowNewSopInstanceUid) | |
163 { | |
164 #if ORTHANC_ENABLE_DCMTK_TRANSCODING == 1 | |
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165 DicomTransferSyntax inputSyntax; |
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166 if (useDcmtk_ && |
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167 FromDcmtkBridge::LookupOrthancTransferSyntax(inputSyntax, dicom) && |
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168 HasInplaceTranscode(inputSyntax, allowedSyntaxes)) |
3893 | 169 { |
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170 return dcmtk_.InplaceTranscode(hasSopInstanceUidChanged, dicom, allowedSyntaxes, allowNewSopInstanceUid); |
3893 | 171 } |
172 else | |
173 #endif | |
174 { | |
175 // "HasInplaceTranscode()" should have been called | |
176 throw OrthancException(ErrorCode_BadSequenceOfCalls); | |
177 } | |
178 } | |
179 } |