Mercurial > hg > orthanc
view Core/DicomParsing/MemoryBufferTranscoder.cpp @ 3905:061f3d031b5d transcoding
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author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 08 May 2020 08:27:18 +0200 |
parents | c62f84c7eda9 |
children | f0dd5ded8927 |
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/** * Orthanc - A Lightweight, RESTful DICOM Store * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics * Department, University Hospital of Liege, Belgium * Copyright (C) 2017-2020 Osimis S.A., Belgium * * This program is free software: you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * In addition, as a special exception, the copyright holders of this * program give permission to link the code of its release with the * OpenSSL project's "OpenSSL" library (or with modified versions of it * that use the same license as the "OpenSSL" library), and distribute * the linked executables. You must obey the GNU General Public License * in all respects for all of the code used other than "OpenSSL". If you * modify file(s) with this exception, you may extend this exception to * your version of the file(s), but you are not obligated to do so. If * you do not wish to do so, delete this exception statement from your * version. If you delete this exception statement from all source files * in the program, then also delete it here. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. **/ #include "../PrecompiledHeaders.h" #include "MemoryBufferTranscoder.h" #include "../OrthancException.h" #include "FromDcmtkBridge.h" namespace Orthanc { MemoryBufferTranscoder::MemoryBufferTranscoder() { #if ORTHANC_ENABLE_DCMTK_TRANSCODING == 1 useDcmtk_ = true; #else useDcmtk_ = false; #endif } void MemoryBufferTranscoder::SetDcmtkUsed(bool used) { #if ORTHANC_ENABLE_DCMTK_TRANSCODING != 1 if (useDcmtk) { throw OrthancException(ErrorCode_NotImplemented, "Orthanc was built without support for DMCTK transcoding"); } #endif useDcmtk_ = used; } bool MemoryBufferTranscoder::TranscodeToBuffer(std::string& target, bool& hasSopInstanceUidChanged, const void* buffer, size_t size, const std::set<DicomTransferSyntax>& allowedSyntaxes, bool allowNewSopInstanceUid) { #if ORTHANC_ENABLE_DCMTK_TRANSCODING == 1 if (useDcmtk_) { if (dcmtk_.TranscodeToBuffer(target, hasSopInstanceUidChanged, buffer, size, allowedSyntaxes, allowNewSopInstanceUid)) { return true; } } #endif return Transcode(target, hasSopInstanceUidChanged, buffer, size, allowedSyntaxes, allowNewSopInstanceUid); } DcmFileFormat* MemoryBufferTranscoder::TranscodeToParsed(bool& hasSopInstanceUidChanged, const void* buffer, size_t size, const std::set<DicomTransferSyntax>& allowedSyntaxes, bool allowNewSopInstanceUid) { #if ORTHANC_ENABLE_DCMTK_TRANSCODING == 1 if (useDcmtk_) { std::unique_ptr<DcmFileFormat> transcoded( dcmtk_.TranscodeToParsed(hasSopInstanceUidChanged, buffer, size, allowedSyntaxes, allowNewSopInstanceUid)); if (transcoded.get() != NULL) { return transcoded.release(); } } #endif std::string transcoded; if (Transcode(transcoded, hasSopInstanceUidChanged, buffer, size, allowedSyntaxes, allowNewSopInstanceUid)) { return FromDcmtkBridge::LoadFromMemoryBuffer( transcoded.empty() ? NULL : transcoded.c_str(), transcoded.size()); } else { return NULL; } } bool MemoryBufferTranscoder::HasInplaceTranscode( DicomTransferSyntax inputSyntax, const std::set<DicomTransferSyntax>& outputSyntaxes) const { /** * Inplace transcoding is only possible if DCMTK is enabled, and * if DCMTK supports all the requested transfer * syntaxes. Otherwise, one has to call the "buffer-to-buffer" * transcoder. **/ #if ORTHANC_ENABLE_DCMTK_TRANSCODING == 1 if (useDcmtk_) { if (!DcmtkTranscoder::IsSupported(inputSyntax)) { return false; } for (std::set<DicomTransferSyntax>::const_iterator it = outputSyntaxes.begin(); it != outputSyntaxes.end(); ++it) { if (!DcmtkTranscoder::IsSupported(*it)) { return false; } } return true; } else #endif { return false; } } bool MemoryBufferTranscoder::InplaceTranscode(bool& hasSopInstanceUidChanged, DcmFileFormat& dicom, const std::set<DicomTransferSyntax>& allowedSyntaxes, bool allowNewSopInstanceUid) { #if ORTHANC_ENABLE_DCMTK_TRANSCODING == 1 DicomTransferSyntax inputSyntax; if (useDcmtk_ && FromDcmtkBridge::LookupOrthancTransferSyntax(inputSyntax, dicom) && HasInplaceTranscode(inputSyntax, allowedSyntaxes)) { return dcmtk_.InplaceTranscode(hasSopInstanceUidChanged, dicom, allowedSyntaxes, allowNewSopInstanceUid); } else #endif { // "HasInplaceTranscode()" should have been called throw OrthancException(ErrorCode_BadSequenceOfCalls); } } }