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annotate OrthancFramework/Sources/DicomParsing/IDicomTranscoder.h @ 5853:4d932683049d get-scu tip

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very first implementation of C-Get SCU
author Alain Mazy <am@orthanc.team>
date Tue, 29 Oct 2024 17:25:49 +0100
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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) 2017-2023 Osimis S.A., Belgium
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6 * Copyright (C) 2024-2024 Orthanc Team SRL, Belgium
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7 * Copyright (C) 2021-2024 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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8 *
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9 * This program is free software: you can redistribute it and/or
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10 * modify it under the terms of the GNU Lesser General Public License
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11 * as published by the Free Software Foundation, either version 3 of
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12 * the License, or (at your option) any later version.
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13 *
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14 * This program is distributed in the hope that it will be useful, but
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15 * WITHOUT ANY WARRANTY; without even the implied warranty of
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16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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17 * Lesser General Public License for more details.
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18 *
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19 * You should have received a copy of the GNU Lesser General Public
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20 * License along with this program. If not, see
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21 * <http://www.gnu.org/licenses/>.
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22 **/
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23
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24
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25 #pragma once
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26
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27 #include "../Compatibility.h"
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28 #include "../Enumerations.h"
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29
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30 #include <boost/noncopyable.hpp>
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31 #include <set>
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32
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33 class DcmFileFormat;
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34
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35 namespace Orthanc
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36 {
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37 class ParsedDicomFile;
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38
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39 /**
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40 * WARNING: This class might be called from several threads at
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41 * once. Make sure to implement proper locking.
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42 **/
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43 class ORTHANC_PUBLIC IDicomTranscoder : public boost::noncopyable
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44 {
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45 public:
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46 class ORTHANC_PUBLIC DicomImage : public boost::noncopyable
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47 {
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48 private:
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49 std::unique_ptr<DcmFileFormat> parsed_;
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50 std::unique_ptr<std::string> buffer_;
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51 bool isExternalBuffer_;
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52 const void* externalBuffer_;
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53 size_t externalSize_;
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54
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55 void Parse();
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56
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57 void Serialize();
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58
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59 DcmFileFormat* ReleaseParsed();
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60
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61 public:
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62 DicomImage();
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63
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64 void Clear();
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65
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66 // Calling this method will invalidate the "ParsedDicomFile" object
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67 void AcquireParsed(ParsedDicomFile& parsed);
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68
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69 void AcquireParsed(DcmFileFormat* parsed);
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70
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71 void AcquireParsed(DicomImage& other);
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72
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73 void AcquireBuffer(std::string& buffer /* will be swapped */);
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74
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75 void AcquireBuffer(DicomImage& other);
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76
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77 void SetExternalBuffer(const void* buffer,
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78 size_t size);
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79
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80 void SetExternalBuffer(const std::string& buffer);
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81
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82 DcmFileFormat& GetParsed();
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83
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84 ParsedDicomFile* ReleaseAsParsedDicomFile();
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85
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86 const void* GetBufferData();
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87
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88 size_t GetBufferSize();
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89 };
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90
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91
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92 protected:
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93 enum TranscodingType
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94 {
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95 TranscodingType_Lossy,
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96 TranscodingType_Lossless,
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97 TranscodingType_Unknown
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98 };
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99
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100 static TranscodingType GetTranscodingType(DicomTransferSyntax target,
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101 DicomTransferSyntax source);
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102
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103 static void CheckTranscoding(DicomImage& transcoded,
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104 DicomTransferSyntax sourceSyntax,
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105 const std::string& sourceSopInstanceUid,
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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 public:
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110 virtual ~IDicomTranscoder()
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111 {
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112 }
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113
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114 virtual bool Transcode(DicomImage& target,
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115 DicomImage& source /* in, "GetParsed()" possibly modified */,
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116 const std::set<DicomTransferSyntax>& allowedSyntaxes,
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117 bool allowNewSopInstanceUid) = 0;
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118
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119 static std::string GetSopInstanceUid(DcmFileFormat& dicom);
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120 };
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121 }