101 lines
3.6 KiB
C
101 lines
3.6 KiB
C
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/*
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*
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* Copyright (C) 1997-2011, OFFIS e.V.
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* All rights reserved. See COPYRIGHT file for details.
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*
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* This software and supporting documentation were developed by
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*
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* OFFIS e.V.
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* R&D Division Health
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* Escherweg 2
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* D-26121 Oldenburg, Germany
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*
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*
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* Module: dcmjpls
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*
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* Author: Martin Willkomm, Uli Schlachter
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*
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* Purpose: singleton class that registers encoders for all supported JPEG-LS processes.
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*
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*/
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#ifndef DCMJPLS_DJENCODE_H
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#define DCMJPLS_DJENCODE_H
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#include "dcmtk/config/osconfig.h"
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#include "dcmtk/ofstd/oftypes.h" /* for OFBool */
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#include "dcmtk/dcmjpls/djlsutil.h"
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#include "dcmtk/dcmdata/dctypes.h" /* for Uint32 */
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#include "dcmtk/dcmjpls/djcparam.h" /* for class DJLSCodecParameter */
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class DJLSCodecParameter;
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class DJLSLosslessEncoder;
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class DJLSNearLosslessEncoder;
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/** singleton class that registers encoders for all supported JPEG-LS processes.
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*/
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class DCMTK_DCMJPLS_EXPORT DJLSEncoderRegistration
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{
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public:
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/** registers encoders for all supported JPEG-LS processes.
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* If already registered, call is ignored unless cleanup() has
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* been performed before.
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* @param jpls_optionsEnabled enable/disable use of all five JPEG-LS parameters
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* @param jpls_t1 JPEG-LS parameter "Threshold 1" (used for quantization)
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* @param jpls_t2 JPEG-LS parameter "Threshold 2"
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* @param jpls_t3 JPEG-LS parameter "Threshold 3"
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* @param jpls_reset JPEG-LS parameter "RESET", i.e., value at which the counters A, B, and N are halved.
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* @param jpls_limit JPEG-LS parameter "LIMIT"
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* @param preferCookedEncoding true if the "cooked" lossless encoder should be preferred over the "raw" one
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* @param fragmentSize maximum fragment size (in kbytes) for compression, 0 for unlimited.
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* @param createOffsetTable create offset table during image compression
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* @param uidCreation mode for SOP Instance UID creation
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* @param convertToSC flag indicating whether image should be converted to Secondary Capture upon compression
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* @param jplsInterleaveMode flag describing which interleave the JPEG-LS datastream should use
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*/
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static void registerCodecs(
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OFBool jpls_optionsEnabled = OFFalse,
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Uint16 jpls_t1 = 3,
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Uint16 jpls_t2 = 7,
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Uint16 jpls_t3 = 21,
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Uint16 jpls_reset = 64,
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Uint16 jpls_limit = 0,
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OFBool preferCookedEncoding = OFTrue,
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Uint32 fragmentSize = 0,
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OFBool createOffsetTable = OFTrue,
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JLS_UIDCreation uidCreation = EJLSUC_default,
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OFBool convertToSC = OFFalse,
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DJLSCodecParameter::interleaveMode jplsInterleaveMode = DJLSCodecParameter::interleaveDefault);
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/** deregisters encoders.
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* Attention: Must not be called while other threads might still use
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* the registered codecs, e.g. because they are currently encoding
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* DICOM data sets through dcmdata.
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*/
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static void cleanup();
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/** get version information of the CharLS library.
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* Typical output format: "CharLS, Revision 55020 (modified)"
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* @return name and version number of the CharLS library
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*/
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static OFString getLibraryVersionString();
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private:
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/// flag indicating whether the encoders are already registered.
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static OFBool registered_;
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/// pointer to codec parameter shared by all encoders
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static DJLSCodecParameter *cp_;
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/// pointer to encoder for lossless JPEG-LS
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static DJLSLosslessEncoder *losslessencoder_;
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/// pointer to encoder for lossy JPEG-LS
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static DJLSNearLosslessEncoder *nearlosslessencoder_;
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};
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#endif
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