Mercurial > hg > orthanc
annotate Core/DicomParsing/MemoryBufferTranscoder.cpp @ 3933:f67b48833a4f transcoding
new option "Throttling" to the GDCM plugin
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 15 May 2020 12:25:36 +0200 |
parents | b99acc213937 |
children | aae045f802f4 |
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 | |
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40 #if !defined(NDEBUG) // For debugging |
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41 # include "ParsedDicomFile.h" |
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42 #endif |
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43 |
3893 | 44 namespace Orthanc |
45 { | |
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46 static void CheckTargetSyntax(const std::string& transcoded, |
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47 const std::set<DicomTransferSyntax>& allowedSyntaxes) |
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48 { |
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49 #if !defined(NDEBUG) |
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50 // Debug mode |
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51 ParsedDicomFile parsed(transcoded); |
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52 |
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53 std::string s; |
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54 DicomTransferSyntax a, b; |
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55 if (!parsed.LookupTransferSyntax(s) || |
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56 !FromDcmtkBridge::LookupOrthancTransferSyntax(a, parsed.GetDcmtkObject()) || |
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57 !LookupTransferSyntax(b, s) || |
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58 a != b || |
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59 allowedSyntaxes.find(a) == allowedSyntaxes.end()) |
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60 { |
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61 throw OrthancException( |
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62 ErrorCode_Plugin, |
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63 "DEBUG - The transcoding plugin has not written to one of the allowed transfer syntaxes"); |
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64 } |
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65 #endif |
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66 } |
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67 |
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68 |
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69 bool MemoryBufferTranscoder::TranscodeParsedToBuffer( |
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70 std::string& target /* out */, |
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71 bool& hasSopInstanceUidChanged /* out */, |
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72 DcmFileFormat& dicom /* in, possibly modified */, |
3910 | 73 DicomTransferSyntax targetSyntax, |
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74 bool allowNewSopInstanceUid) |
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75 { |
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76 if (dicom.getDataset() == NULL) |
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77 { |
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78 throw OrthancException(ErrorCode_InternalError); |
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79 } |
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80 |
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81 std::string source; |
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82 FromDcmtkBridge::SaveToMemoryBuffer(source, *dicom.getDataset()); |
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83 |
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84 const void* data = source.empty() ? NULL : source.c_str(); |
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85 |
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86 std::set<DicomTransferSyntax> allowedSyntaxes; |
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87 allowedSyntaxes.insert(targetSyntax); |
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88 |
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89 if (Transcode(target, hasSopInstanceUidChanged, |
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90 data, source.size(), allowedSyntaxes, allowNewSopInstanceUid)) |
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91 { |
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92 CheckTargetSyntax(target, allowedSyntaxes); |
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93 return true; |
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94 } |
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95 else |
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96 { |
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97 return false; |
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98 } |
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99 } |
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100 |
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101 |
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102 IDicomTranscoder::TranscodedDicom* MemoryBufferTranscoder::TranscodeToParsed( |
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103 DcmFileFormat& dicom /* in, possibly modified */, |
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104 const void* buffer /* in, same DICOM file as "dicom" */, |
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105 size_t size, |
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106 const std::set<DicomTransferSyntax>& allowedSyntaxes, |
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107 bool allowNewSopInstanceUid) |
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108 { |
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109 bool hasSopInstanceUidChanged; |
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110 |
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111 std::string target; |
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112 if (Transcode(target, hasSopInstanceUidChanged, |
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113 buffer, size, allowedSyntaxes, allowNewSopInstanceUid)) |
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114 { |
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115 CheckTargetSyntax(target, allowedSyntaxes); |
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116 |
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117 const void* data = target.empty() ? NULL : target.c_str(); |
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118 return IDicomTranscoder::TranscodedDicom::CreateFromInternal( |
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119 FromDcmtkBridge::LoadFromMemoryBuffer(data, target.size()), hasSopInstanceUidChanged); |
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120 } |
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121 else |
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122 { |
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123 return NULL; |
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124 } |
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125 } |
3893 | 126 } |