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3893
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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 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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32
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33
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34 #include "../PrecompiledHeaders.h"
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35 #include "MemoryBufferTranscoder.h"
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36
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37 #include "../OrthancException.h"
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38 #include "FromDcmtkBridge.h"
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39
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40 namespace Orthanc
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41 {
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42 MemoryBufferTranscoder::MemoryBufferTranscoder(bool tryDcmtk) :
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43 tryDcmtk_(tryDcmtk)
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44 {
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45 #if ORTHANC_ENABLE_DCMTK_TRANSCODING != 1
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46 if (tryDcmtk)
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47 {
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48 throw OrthancException(ErrorCode_NotImplemented,
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49 "Orthanc was built without support for DMCTK transcoding");
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50 }
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51 #endif
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52 }
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53
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54 bool MemoryBufferTranscoder::TranscodeToBuffer(std::string& target,
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55 const void* buffer,
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56 size_t size,
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57 const std::set<DicomTransferSyntax>& allowedSyntaxes,
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58 bool allowNewSopInstanceUid)
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59 {
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60 #if ORTHANC_ENABLE_DCMTK_TRANSCODING == 1
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61 if (tryDcmtk_)
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62 {
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63 return dcmtk_.TranscodeToBuffer(target, buffer, size, allowedSyntaxes, allowNewSopInstanceUid);
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64 }
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65 else
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66 #endif
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67 {
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68 return Transcode(target, buffer, size, allowedSyntaxes, allowNewSopInstanceUid);
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69 }
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70 }
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71
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72
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73 DcmFileFormat* MemoryBufferTranscoder::TranscodeToParsed(const void* buffer,
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74 size_t size,
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75 const std::set<DicomTransferSyntax>& allowedSyntaxes,
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76 bool allowNewSopInstanceUid)
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77 {
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78 #if ORTHANC_ENABLE_DCMTK_TRANSCODING == 1
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79 if (tryDcmtk_)
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80 {
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81 return dcmtk_.TranscodeToParsed(buffer, size, allowedSyntaxes, allowNewSopInstanceUid);
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82 }
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83 else
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84 #endif
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85 {
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86 std::string transcoded;
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87 if (Transcode(transcoded, buffer, size, allowedSyntaxes, allowNewSopInstanceUid))
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88 {
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89 return FromDcmtkBridge::LoadFromMemoryBuffer(
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90 transcoded.empty() ? NULL : transcoded.c_str(), transcoded.size());
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91 }
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92 else
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93 {
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94 return NULL;
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95 }
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96 }
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97 }
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98
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99
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100 bool MemoryBufferTranscoder::InplaceTranscode(DcmFileFormat& dicom,
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101 const std::set<DicomTransferSyntax>& allowedSyntaxes,
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102 bool allowNewSopInstanceUid)
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103 {
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104 #if ORTHANC_ENABLE_DCMTK_TRANSCODING == 1
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105 if (tryDcmtk_)
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106 {
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107 return dcmtk_.InplaceTranscode(dicom, allowedSyntaxes, allowNewSopInstanceUid);
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108 }
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109 else
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110 #endif
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111 {
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112 // "HasInplaceTranscode()" should have been called
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113 throw OrthancException(ErrorCode_BadSequenceOfCalls);
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114 }
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115 }
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116 }
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