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annotate Core/DicomParsing/IDicomTranscoder.h @ 4541:73ea4f52965c Orthanc-1.7.1

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author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 02 Mar 2021 16:52:17 +0100
parents 5fe8c6d3212e
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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 #pragma once
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35
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36 #include "../Compatibility.h"
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37 #include "../Enumerations.h"
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38
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39 #include <boost/noncopyable.hpp>
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40 #include <set>
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41
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42 class DcmFileFormat;
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43
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44 namespace Orthanc
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45 {
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46 /**
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47 * WARNING: This class might be called from several threads at
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48 * once. Make sure to implement proper locking.
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49 **/
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50
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51 class ParsedDicomFile;
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52
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53 class IDicomTranscoder : public boost::noncopyable
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54 {
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55 public:
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56 class DicomImage : public boost::noncopyable
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57 {
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58 private:
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59 std::unique_ptr<DcmFileFormat> parsed_;
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60 std::unique_ptr<std::string> buffer_;
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61 bool isExternalBuffer_;
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62 const void* externalBuffer_;
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63 size_t externalSize_;
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64
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65 void Parse();
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66
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67 void Serialize();
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68
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69 DcmFileFormat* ReleaseParsed();
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70
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71 public:
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72 DicomImage();
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73
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74 void Clear();
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75
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76 // Calling this method will invalidate the "ParsedDicomFile" object
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77 void AcquireParsed(ParsedDicomFile& parsed);
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78
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79 void AcquireParsed(DcmFileFormat* parsed);
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80
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81 void AcquireParsed(DicomImage& other);
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82
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83 void AcquireBuffer(std::string& buffer /* will be swapped */);
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84
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85 void AcquireBuffer(DicomImage& other);
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86
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87 void SetExternalBuffer(const void* buffer,
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88 size_t size);
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89
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90 void SetExternalBuffer(const std::string& buffer);
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91
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92 DcmFileFormat& GetParsed();
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93
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94 ParsedDicomFile* ReleaseAsParsedDicomFile();
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95
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96 const void* GetBufferData();
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97
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98 size_t GetBufferSize();
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99 };
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100
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101
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102 protected:
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103 enum TranscodingType
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104 {
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105 TranscodingType_Lossy,
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106 TranscodingType_Lossless,
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107 TranscodingType_Unknown
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108 };
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109
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110 static TranscodingType GetTranscodingType(DicomTransferSyntax target,
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111 DicomTransferSyntax source);
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112
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113 static void CheckTranscoding(DicomImage& transcoded,
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114 DicomTransferSyntax sourceSyntax,
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115 const std::string& sourceSopInstanceUid,
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116 const std::set<DicomTransferSyntax>& allowedSyntaxes,
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117 bool allowNewSopInstanceUid);
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118
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119 public:
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120 virtual ~IDicomTranscoder()
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121 {
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122 }
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123
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124 virtual bool Transcode(DicomImage& target,
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125 DicomImage& source /* in, "GetParsed()" possibly modified */,
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126 const std::set<DicomTransferSyntax>& allowedSyntaxes,
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127 bool allowNewSopInstanceUid) = 0;
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128
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129 static std::string GetSopInstanceUid(DcmFileFormat& dicom);
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130 };
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131 }