annotate Core/DicomParsing/DcmtkTranscoder.cpp @ 3893:7a5fa8f307e9 transcoding

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author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 06 May 2020 12:48:28 +0200
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children 8f7ad4989fec
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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 "DcmtkTranscoder.h"
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36
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37
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38 #if !defined(ORTHANC_ENABLE_DCMTK_JPEG)
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39 # error Macro ORTHANC_ENABLE_DCMTK_JPEG must be defined
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40 #endif
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41
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42 #if !defined(ORTHANC_ENABLE_DCMTK_JPEG_LOSSLESS)
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43 # error Macro ORTHANC_ENABLE_DCMTK_JPEG_LOSSLESS must be defined
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44 #endif
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45
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46
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47 #include "FromDcmtkBridge.h"
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48 #include "../OrthancException.h"
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49
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50 #include <dcmtk/dcmdata/dcdeftag.h>
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51 #include <dcmtk/dcmjpeg/djrploss.h> // for DJ_RPLossy
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52 #include <dcmtk/dcmjpeg/djrplol.h> // for DJ_RPLossless
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53 #include <dcmtk/dcmjpls/djrparam.h> // for DJLSRepresentationParameter
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54
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55
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56 namespace Orthanc
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57 {
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58 static uint16_t GetBitsStored(DcmDataset& dataset)
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59 {
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60 uint16_t bitsStored;
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61 if (dataset.findAndGetUint16(DCM_BitsStored, bitsStored).good())
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62 {
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63 return bitsStored;
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64 }
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65 else
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66 {
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67 throw OrthancException(ErrorCode_BadFileFormat,
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68 "Missing \"Bits Stored\" tag in DICOM instance");
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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 static std::string GetSopInstanceUid(DcmDataset& dataset)
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74 {
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75 const char* v = NULL;
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76
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77 if (dataset.findAndGetString(DCM_SOPInstanceUID, v).good() &&
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78 v != NULL)
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79 {
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80 return std::string(v);
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81 }
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82 else
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83 {
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84 throw OrthancException(ErrorCode_BadFileFormat, "File without SOP instance UID");
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85 }
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86 }
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87
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88
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89 static void CheckSopInstanceUid(DcmFileFormat& dicom,
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90 const std::string& sopInstanceUid,
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91 bool mustEqual)
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92 {
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93 if (dicom.getDataset() == NULL)
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94 {
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95 throw OrthancException(ErrorCode_InternalError);
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96 }
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97
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98 bool ok;
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99
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100 if (mustEqual)
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101 {
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102 ok = (GetSopInstanceUid(*dicom.getDataset()) == sopInstanceUid);
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103 }
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104 else
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105 {
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106 ok = (GetSopInstanceUid(*dicom.getDataset()) != sopInstanceUid);
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107 }
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108
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109 if (!ok)
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110 {
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111 throw OrthancException(ErrorCode_InternalError,
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112 mustEqual ? "The SOP instance UID has changed unexpectedly during transcoding" :
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113 "The SOP instance UID has not changed as expected during transcoding");
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114 }
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115 }
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116
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117
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118 void DcmtkTranscoder::SetLossyQuality(unsigned int quality)
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119 {
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120 if (quality <= 0 ||
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121 quality > 100)
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122 {
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123 throw OrthancException(ErrorCode_ParameterOutOfRange);
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124 }
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125 else
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126 {
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127 lossyQuality_ = quality;
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128 }
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129 }
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130
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131
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132 DcmFileFormat* DcmtkTranscoder::TranscodeToParsed(const void* buffer,
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133 size_t size,
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134 const std::set<DicomTransferSyntax>& allowedSyntaxes,
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135 bool allowNewSopInstanceUid)
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136 {
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137 std::unique_ptr<DcmFileFormat> dicom(FromDcmtkBridge::LoadFromMemoryBuffer(buffer, size));
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138
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139 if (dicom.get() == NULL)
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140 {
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141 throw OrthancException(ErrorCode_InternalError);
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142 }
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143
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144 if (InplaceTranscode(*dicom, allowedSyntaxes, allowNewSopInstanceUid))
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145 {
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146 return dicom.release();
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147 }
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148 else
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149 {
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150 return NULL;
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151 }
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parents:
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152 }
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parents:
diff changeset
153
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154
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155 bool DcmtkTranscoder::InplaceTranscode(DcmFileFormat& dicom,
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156 const std::set<DicomTransferSyntax>& allowedSyntaxes,
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157 bool allowNewSopInstanceUid)
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158 {
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159 if (dicom.getDataset() == NULL)
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160 {
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161 throw OrthancException(ErrorCode_InternalError);
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162 }
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163
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164 DicomTransferSyntax syntax;
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165 if (!FromDcmtkBridge::LookupOrthancTransferSyntax(syntax, dicom))
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166 {
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167 throw OrthancException(ErrorCode_BadFileFormat,
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168 "Cannot determine the transfer syntax");
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parents:
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169 }
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170
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171 const uint16_t bitsStored = GetBitsStored(*dicom.getDataset());
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172 std::string sourceSopInstanceUid = GetSopInstanceUid(*dicom.getDataset());
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173
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174 if (allowedSyntaxes.find(syntax) != allowedSyntaxes.end())
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175 {
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176 // No transcoding is needed
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177 return true;
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178 }
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179
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180 if (allowedSyntaxes.find(DicomTransferSyntax_LittleEndianImplicit) != allowedSyntaxes.end() &&
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181 FromDcmtkBridge::Transcode(dicom, DicomTransferSyntax_LittleEndianImplicit, NULL))
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182 {
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183 CheckSopInstanceUid(dicom, sourceSopInstanceUid, true);
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184 return true;
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185 }
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186
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187 if (allowedSyntaxes.find(DicomTransferSyntax_LittleEndianExplicit) != allowedSyntaxes.end() &&
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188 FromDcmtkBridge::Transcode(dicom, DicomTransferSyntax_LittleEndianExplicit, NULL))
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189 {
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190 CheckSopInstanceUid(dicom, sourceSopInstanceUid, true);
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191 return true;
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192 }
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193
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194 if (allowedSyntaxes.find(DicomTransferSyntax_BigEndianExplicit) != allowedSyntaxes.end() &&
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195 FromDcmtkBridge::Transcode(dicom, DicomTransferSyntax_BigEndianExplicit, NULL))
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196 {
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197 CheckSopInstanceUid(dicom, sourceSopInstanceUid, true);
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198 return true;
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199 }
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parents:
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200
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parents:
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201 if (allowedSyntaxes.find(DicomTransferSyntax_DeflatedLittleEndianExplicit) != allowedSyntaxes.end() &&
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202 FromDcmtkBridge::Transcode(dicom, DicomTransferSyntax_DeflatedLittleEndianExplicit, NULL))
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203 {
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204 CheckSopInstanceUid(dicom, sourceSopInstanceUid, true);
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205 return true;
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parents:
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206 }
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parents:
diff changeset
207
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parents:
diff changeset
208 #if ORTHANC_ENABLE_DCMTK_JPEG == 1
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209 if (allowedSyntaxes.find(DicomTransferSyntax_JPEGProcess1) != allowedSyntaxes.end() &&
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210 allowNewSopInstanceUid &&
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211 bitsStored == 8)
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212 {
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213 // Check out "dcmjpeg/apps/dcmcjpeg.cc"
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parents:
diff changeset
214 DJ_RPLossy parameters(lossyQuality_);
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parents:
diff changeset
215
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216 if (FromDcmtkBridge::Transcode(dicom, DicomTransferSyntax_JPEGProcess1, &parameters))
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diff changeset
217 {
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diff changeset
218 CheckSopInstanceUid(dicom, sourceSopInstanceUid, false);
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219 return true;
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parents:
diff changeset
220 }
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parents:
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221 }
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diff changeset
222 #endif
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parents:
diff changeset
223
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diff changeset
224 #if ORTHANC_ENABLE_DCMTK_JPEG == 1
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diff changeset
225 if (allowedSyntaxes.find(DicomTransferSyntax_JPEGProcess2_4) != allowedSyntaxes.end() &&
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diff changeset
226 allowNewSopInstanceUid &&
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diff changeset
227 bitsStored <= 12)
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diff changeset
228 {
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diff changeset
229 // Check out "dcmjpeg/apps/dcmcjpeg.cc"
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parents:
diff changeset
230 DJ_RPLossy parameters(lossyQuality_);
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parents:
diff changeset
231 if (FromDcmtkBridge::Transcode(dicom, DicomTransferSyntax_JPEGProcess2_4, &parameters))
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
232 {
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diff changeset
233 CheckSopInstanceUid(dicom, sourceSopInstanceUid, false);
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parents:
diff changeset
234 return true;
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parents:
diff changeset
235 }
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parents:
diff changeset
236 }
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
237 #endif
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parents:
diff changeset
238
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parents:
diff changeset
239 #if ORTHANC_ENABLE_DCMTK_JPEG == 1
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parents:
diff changeset
240 if (allowedSyntaxes.find(DicomTransferSyntax_JPEGProcess14SV1) != allowedSyntaxes.end())
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parents:
diff changeset
241 {
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parents:
diff changeset
242 // Check out "dcmjpeg/apps/dcmcjpeg.cc"
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
243 DJ_RPLossless parameters(6 /* opt_selection_value */,
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parents:
diff changeset
244 0 /* opt_point_transform */);
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parents:
diff changeset
245 if (FromDcmtkBridge::Transcode(dicom, DicomTransferSyntax_JPEGProcess14SV1, &parameters))
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
246 {
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diff changeset
247 CheckSopInstanceUid(dicom, sourceSopInstanceUid, true);
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parents:
diff changeset
248 return true;
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parents:
diff changeset
249 }
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parents:
diff changeset
250 }
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parents:
diff changeset
251 #endif
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parents:
diff changeset
252
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diff changeset
253 #if ORTHANC_ENABLE_DCMTK_JPEG_LOSSLESS == 1
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diff changeset
254 if (allowedSyntaxes.find(DicomTransferSyntax_JPEGLSLossless) != allowedSyntaxes.end())
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parents:
diff changeset
255 {
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parents:
diff changeset
256 // Check out "dcmjpls/apps/dcmcjpls.cc"
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
257 DJLSRepresentationParameter parameters(2 /* opt_nearlossless_deviation */,
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parents:
diff changeset
258 OFTrue /* opt_useLosslessProcess */);
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parents:
diff changeset
259
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parents:
diff changeset
260 /**
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parents:
diff changeset
261 * WARNING: This call results in a segmentation fault if using
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parents:
diff changeset
262 * the DCMTK package 3.6.2 from Ubuntu 18.04.
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
263 **/
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parents:
diff changeset
264 if (FromDcmtkBridge::Transcode(dicom, DicomTransferSyntax_JPEGLSLossless, &parameters))
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
265 {
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parents:
diff changeset
266 CheckSopInstanceUid(dicom, sourceSopInstanceUid, true);
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parents:
diff changeset
267 return true;
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parents:
diff changeset
268 }
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parents:
diff changeset
269 }
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parents:
diff changeset
270 #endif
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parents:
diff changeset
271
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diff changeset
272 #if ORTHANC_ENABLE_DCMTK_JPEG_LOSSLESS == 1
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parents:
diff changeset
273 if (allowNewSopInstanceUid &&
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diff changeset
274 allowedSyntaxes.find(DicomTransferSyntax_JPEGLSLossy) != allowedSyntaxes.end())
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
275 {
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parents:
diff changeset
276 // Check out "dcmjpls/apps/dcmcjpls.cc"
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
277 DJLSRepresentationParameter parameters(2 /* opt_nearlossless_deviation */,
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parents:
diff changeset
278 OFFalse /* opt_useLosslessProcess */);
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
279
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parents:
diff changeset
280 /**
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parents:
diff changeset
281 * WARNING: This call results in a segmentation fault if using
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parents:
diff changeset
282 * the DCMTK package 3.6.2 from Ubuntu 18.04.
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
283 **/
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parents:
diff changeset
284 if (FromDcmtkBridge::Transcode(dicom, DicomTransferSyntax_JPEGLSLossy, &parameters))
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
285 {
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diff changeset
286 CheckSopInstanceUid(dicom, sourceSopInstanceUid, false);
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parents:
diff changeset
287 return true;
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parents:
diff changeset
288 }
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parents:
diff changeset
289 }
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
290 #endif
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
291
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parents:
diff changeset
292 return false;
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parents:
diff changeset
293 }
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parents:
diff changeset
294
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parents:
diff changeset
295
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parents:
diff changeset
296 bool DcmtkTranscoder::TranscodeToBuffer(std::string& target,
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Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
297 const void* buffer,
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parents:
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298 size_t size,
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299 const std::set<DicomTransferSyntax>& allowedSyntaxes,
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300 bool allowNewSopInstanceUid)
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301 {
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302 std::unique_ptr<DcmFileFormat> transcoded(
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303 TranscodeToParsed(buffer, size, allowedSyntaxes, allowNewSopInstanceUid));
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304
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305 if (transcoded.get() == NULL)
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306 {
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307 return false;
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308 }
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309 else
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310 {
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311 if (transcoded->getDataset() == NULL)
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312 {
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313 throw OrthancException(ErrorCode_InternalError);
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314 }
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315
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316 FromDcmtkBridge::SaveToMemoryBuffer(target, *transcoded->getDataset());
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317 return true;
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318 }
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319 }
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320 }