--- a/OrthancFramework/Resources/CMake/OrthancFrameworkConfiguration.cmake	Mon Jun 01 15:30:37 2026 +0200
+++ b/OrthancFramework/Resources/CMake/OrthancFrameworkConfiguration.cmake	Mon Jun 01 15:33:18 2026 +0200
@@ -685,7 +685,6 @@
       ${CMAKE_CURRENT_LIST_DIR}/../../Sources/DataSource/DicomDataSource.cpp
       ${CMAKE_CURRENT_LIST_DIR}/../../Sources/DataSource/DicomSequentialReader.cpp
       ${CMAKE_CURRENT_LIST_DIR}/../../Sources/DataSource/TranscoderDataSource.cpp
-      ${CMAKE_CURRENT_LIST_DIR}/../../Sources/DicomParsing/TranscodingCallable.cpp
       )
   endif()
 

--- a/OrthancFramework/Sources/DicomParsing/TranscodingCallable.cpp	Mon Jun 01 15:30:37 2026 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,101 +0,0 @@
-/**
- * Orthanc - A Lightweight, RESTful DICOM Store
- * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
- * Department, University Hospital of Liege, Belgium
- * Copyright (C) 2017-2023 Osimis S.A., Belgium
- * Copyright (C) 2024-2026 Orthanc Team SRL, Belgium
- * Copyright (C) 2021-2026 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
- *
- * This program is free software: you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public License
- * as published by the Free Software Foundation, either version 3 of
- * the License, or (at your option) any later version.
- *
- * 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this program. If not, see
- * <http://www.gnu.org/licenses/>.
- **/
-
-
-#include "../PrecompiledHeaders.h"
-#include "TranscodingCallable.h"
-
-#include "../OrthancException.h"
-
-#include <dcmtk/dcmdata/dcfilefo.h>
-
-
-namespace Orthanc
-{
-  TranscodingCallable::TranscodingCallable() :
-    mode_(TranscodingSopInstanceUidMode_AllowNew),
-    hasLossyQuality_(false),
-    lossyQuality_(0)
-  {
-  }
-
-
-  void TranscodingCallable::SetTranscoder(const boost::shared_ptr<IDicomTranscoder>& transcoder)
-  {
-    if (transcoder_.get() == NULL)
-    {
-      transcoder_ = transcoder;
-    }
-    else
-    {
-      throw OrthancException(ErrorCode_BadSequenceOfCalls);
-    }
-  }
-
-
-  void TranscodingCallable::SetLossyQuality(unsigned int quality)
-  {
-    hasLossyQuality_ = true;
-    lossyQuality_ = quality;
-  }
-
-
-  IDynamicObject* TranscodingCallable::Call()
-  {
-    if (transcoder_.get() == NULL)
-    {
-      throw OrthancException(ErrorCode_BadSequenceOfCalls);
-    }
-
-    std::unique_ptr<IDicomTranscoder::DicomImage> transcoded(new IDicomTranscoder::DicomImage);
-    bool success;
-
-    if (hasLossyQuality_)
-    {
-      success = transcoder_->Transcode(*transcoded, source_, allowedSyntaxes_, mode_, lossyQuality_);
-    }
-    else
-    {
-      success = transcoder_->Transcode(*transcoded, source_, allowedSyntaxes_, mode_);
-    }
-
-    if (success)
-    {
-      return transcoded.release();
-    }
-    else
-    {
-      if (allowedSyntaxes_.size() == 1)
-      {
-        DicomTransferSyntax syntax = *allowedSyntaxes_.begin();
-        throw OrthancException(ErrorCode_InternalError,
-                               "Cannot transcode to transfer syntax: " +
-                               std::string(GetTransferSyntaxUid(syntax)));
-      }
-      else
-      {
-        throw OrthancException(ErrorCode_NotImplemented, "Cannot transcode DICOM image");
-      }
-    }
-  }
-}

--- a/OrthancFramework/Sources/DicomParsing/TranscodingCallable.h	Mon Jun 01 15:30:37 2026 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,75 +0,0 @@
-/**
- * Orthanc - A Lightweight, RESTful DICOM Store
- * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
- * Department, University Hospital of Liege, Belgium
- * Copyright (C) 2017-2023 Osimis S.A., Belgium
- * Copyright (C) 2024-2026 Orthanc Team SRL, Belgium
- * Copyright (C) 2021-2026 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
- *
- * This program is free software: you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public License
- * as published by the Free Software Foundation, either version 3 of
- * the License, or (at your option) any later version.
- *
- * 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this program. If not, see
- * <http://www.gnu.org/licenses/>.
- **/
-
-
-#pragma once
-
-#include "IDicomTranscoder.h"
-#include "../MultiThreading/ICallable.h"
-
-#include <boost/shared_ptr.hpp>
-
-
-namespace Orthanc
-{
-  class TranscodingCallable : public ICallable
-  {
-  private:
-    boost::shared_ptr<IDicomTranscoder>  transcoder_;
-    IDicomTranscoder::DicomImage         source_;
-    std::set<DicomTransferSyntax>        allowedSyntaxes_;
-    TranscodingSopInstanceUidMode        mode_;
-    bool                                 hasLossyQuality_;
-    unsigned int                         lossyQuality_;
-
-  public:
-    // By default, allow new SOP instance UID
-    TranscodingCallable();
-
-    void AcquireParsed(ParsedDicomFile& parsed /* will be invalidated */)
-    {
-      source_.AcquireParsed(parsed);
-    }
-
-    void AcquireBuffer(std::string& buffer /* will be swapped */)
-    {
-      source_.AcquireBuffer(buffer);
-    }
-
-    void SetTranscoder(const boost::shared_ptr<IDicomTranscoder>& transcoder);
-
-    void SetMode(TranscodingSopInstanceUidMode mode)
-    {
-      mode_ = mode;
-    }
-
-    void AddTransferSyntax(DicomTransferSyntax syntax)
-    {
-      allowedSyntaxes_.insert(syntax);
-    }
-
-    void SetLossyQuality(unsigned int quality);
-
-    virtual IDynamicObject* Call() ORTHANC_OVERRIDE;
-  };
-}

--- a/OrthancServer/Sources/ServerContext.cpp	Mon Jun 01 15:30:37 2026 +0200
+++ b/OrthancServer/Sources/ServerContext.cpp	Mon Jun 01 15:33:18 2026 +0200
@@ -34,7 +34,6 @@
 #include "../../OrthancFramework/Sources/DicomNetworking/DicomStoreUserConnection.h"
 #include "../../OrthancFramework/Sources/DicomParsing/DicomModification.h"
 #include "../../OrthancFramework/Sources/DicomParsing/FromDcmtkBridge.h"
-#include "../../OrthancFramework/Sources/DicomParsing/TranscodingCallable.h"
 #include "../../OrthancFramework/Sources/FileStorage/StorageAccessor.h"
 #include "../../OrthancFramework/Sources/HttpServer/FilesystemHttpSender.h"
 #include "../../OrthancFramework/Sources/HttpServer/HttpStreamTranscoder.h"
@@ -2181,19 +2180,6 @@
   }
 
 
-  Future* ServerContext::SubmitTranscodingRequest(TranscodingCallable* callable)
-  {
-    if (callable == NULL)
-    {
-      throw OrthancException(ErrorCode_NullPointer);
-    }
-
-    callable->SetTranscoder(transcoder_);
-
-    return transcoderThreadPool_->Submit(callable);
-  }
-
-
   DicomSequentialReader::Factory& ServerContext::GetDicomSequentialReaderFactory()
   {
     return *dicomSequentialReaderFactory_;

--- a/OrthancServer/Sources/ServerContext.h	Mon Jun 01 15:30:37 2026 +0200
+++ b/OrthancServer/Sources/ServerContext.h	Mon Jun 01 15:33:18 2026 +0200
@@ -50,7 +50,6 @@
   class SharedArchive;
   class StorageCommitmentReports;
   class ThreadPool;
-  class TranscodingCallable;
   
 
   /**
@@ -599,8 +598,6 @@
 
     const boost::shared_ptr<ServerTranscoder>& GetTranscoder() const;
 
-    Future* SubmitTranscodingRequest(TranscodingCallable* callable);
-
     DicomSequentialReader::Factory& GetDicomSequentialReaderFactory();
   };
 }