Mercurial > hg > orthanc

annotate Core/DicomParsing/IDicomTranscoder.h @ 3922:74eeadf5d51d transcoding

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fix access to compressed frames after transcoding
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 12 May 2020 20:48:19 +0200
parents 7610af1532c3
children 7dc5e7e0045d
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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 IDicomTranscoder : public boost::noncopyable
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52 {
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53 public:
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54 virtual ~IDicomTranscoder()
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55 {
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56 }
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57
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58 virtual bool TranscodeParsedToBuffer(std::string& target /* out */,
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59 DicomTransferSyntax& sourceSyntax /* out */,
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60 bool& hasSopInstanceUidChanged /* out */,
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61 DcmFileFormat& dicom /* in, possibly modified */,
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62 DicomTransferSyntax targetSyntax,
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63 bool allowNewSopInstanceUid) = 0;
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64
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65
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66 class TranscodedDicom : public boost::noncopyable
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67 {
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68 private:
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69 std::unique_ptr<DcmFileFormat> internal_;
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70 DcmFileFormat* external_;
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71 bool hasSopInstanceUidChanged_;
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72
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73 TranscodedDicom(bool hasSopInstanceUidChanged);
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74
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75 public:
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76 static TranscodedDicom* CreateFromExternal(DcmFileFormat& dicom,
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77 bool hasSopInstanceUidChanged);
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78
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79 static TranscodedDicom* CreateFromInternal(DcmFileFormat* dicom,
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80 bool hasSopInstanceUidChanged);
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81
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82 // TODO - Is this information used somewhere?
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83 bool HasSopInstanceUidChanged() const
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84 {
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85 return hasSopInstanceUidChanged_;
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86 }
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87
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88 DcmFileFormat& GetDicom() const;
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89
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90 DcmFileFormat* ReleaseDicom();
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91 };
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92
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93 /**
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94 * Transcoding flavor that creates a new parsed DICOM file. A
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95 * "std::set<>" is used to give the possible plugin the
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96 * possibility to do a single parsing for all the possible
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97 * transfer syntaxes. This flavor is used by C-STORE.
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98 **/
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99 virtual TranscodedDicom* TranscodeToParsed(
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100 DcmFileFormat& dicom /* in, possibly modified */,
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101 const void* buffer /* in, same DICOM file as "dicom" */,
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102 size_t size,
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103 const std::set<DicomTransferSyntax>& allowedSyntaxes,
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104 bool allowNewSopInstanceUid) = 0;
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105 };
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106 }