Decoder class for JPEG Progressive (lossy, 8/12-bit) More...
Inheritance diagram for DJDecoderProgressive:
Public Member Functions | |
| DJDecoderProgressive () | |
| default constructor | |
| virtual | ~DJDecoderProgressive () |
| destructor | |
| virtual E_TransferSyntax | supportedTransferSyntax () const |
| returns the transfer syntax that this particular codec is able to encode and decode. More... | |
| virtual OFBool | isLosslessProcess () const |
| returns true if the transfer syntax supported by this codec is lossless. More... | |
| Public Member Functions inherited from DJCodecDecoder | |
| DJCodecDecoder () | |
| default constructor | |
| virtual | ~DJCodecDecoder () |
| destructor | |
| virtual OFCondition | decode (const DcmRepresentationParameter *fromRepParam, DcmPixelSequence *pixSeq, DcmPolymorphOBOW &uncompressedPixelData, const DcmCodecParameter *cp, const DcmStack &objStack, OFBool &removeOldRep) const |
| decompresses the given pixel sequence and stores the result in the given uncompressedPixelData element. More... | |
| virtual OFCondition | decodeFrame (const DcmRepresentationParameter *fromParam, DcmPixelSequence *fromPixSeq, const DcmCodecParameter *cp, DcmItem *dataset, Uint32 frameNo, Uint32 &startFragment, void *buffer, Uint32 bufSize, OFString &decompressedColorModel) const |
| decompresses a single frame from the given pixel sequence and stores the result in the given buffer. More... | |
| virtual OFCondition | encode (const Uint16 *pixelData, const Uint32 length, const DcmRepresentationParameter *toRepParam, DcmPixelSequence *&pixSeq, const DcmCodecParameter *cp, DcmStack &objStack, OFBool &removeOldRep) const |
| compresses the given uncompressed DICOM image and stores the result in the given pixSeq element. More... | |
| virtual OFCondition | encode (const E_TransferSyntax fromRepType, const DcmRepresentationParameter *fromRepParam, DcmPixelSequence *fromPixSeq, const DcmRepresentationParameter *toRepParam, DcmPixelSequence *&toPixSeq, const DcmCodecParameter *cp, DcmStack &objStack, OFBool &removeOldRep) const |
| transcodes (re-compresses) the given compressed DICOM image and stores the result in the given toPixSeq element. More... | |
| virtual OFBool | canChangeCoding (const E_TransferSyntax oldRepType, const E_TransferSyntax newRepType) const |
| checks if this codec is able to convert from the given current transfer syntax to the given new transfer syntax More... | |
| virtual OFCondition | determineDecompressedColorModel (const DcmRepresentationParameter *fromParam, DcmPixelSequence *fromPixSeq, const DcmCodecParameter *cp, DcmItem *dataset, OFString &decompressedColorModel) const |
| determine color model of the decompressed image More... | |
| virtual E_TransferSyntax | supportedTransferSyntax () const =0 |
| returns the transfer syntax that this particular codec is able to decode. More... | |
| virtual OFBool | isLosslessProcess () const =0 |
| returns true if the transfer syntax supported by this codec is lossless. More... | |
| Public Member Functions inherited from DcmCodec | |
| DcmCodec () | |
| default constructor | |
| virtual | ~DcmCodec () |
| destructor | |
| virtual OFCondition | decode (const DcmRepresentationParameter *fromRepParam, DcmPixelSequence *pixSeq, DcmPolymorphOBOW &uncompressedPixelData, const DcmCodecParameter *cp, const DcmStack &objStack, OFBool &removeOldRep) const =0 |
| decompresses the given pixel sequence and stores the result in the given uncompressedPixelData element. More... | |
| virtual OFCondition | decodeFrame (const DcmRepresentationParameter *fromParam, DcmPixelSequence *fromPixSeq, const DcmCodecParameter *cp, DcmItem *dataset, Uint32 frameNo, Uint32 &startFragment, void *buffer, Uint32 bufSize, OFString &decompressedColorModel) const =0 |
| decompresses a single frame from the given pixel sequence and stores the result in the given buffer. More... | |
| virtual OFCondition | encode (const Uint16 *pixelData, const Uint32 length, const DcmRepresentationParameter *toRepParam, DcmPixelSequence *&pixSeq, const DcmCodecParameter *cp, DcmStack &objStack, OFBool &removeOldRep) const =0 |
| compresses the given uncompressed DICOM image and stores the result in the given pixSeq element. More... | |
| virtual OFCondition | encode (const E_TransferSyntax fromRepType, const DcmRepresentationParameter *fromRepParam, DcmPixelSequence *fromPixSeq, const DcmRepresentationParameter *toRepParam, DcmPixelSequence *&toPixSeq, const DcmCodecParameter *cp, DcmStack &objStack, OFBool &removeOldRep) const =0 |
| transcodes (re-compresses) the given compressed DICOM image and stores the result in the given toPixSeq element. More... | |
| virtual OFBool | canChangeCoding (const E_TransferSyntax oldRepType, const E_TransferSyntax newRepType) const =0 |
| checks if this codec is able to convert from the given current transfer syntax to the given new transfer syntax More... | |
| virtual OFCondition | determineDecompressedColorModel (const DcmRepresentationParameter *fromParam, DcmPixelSequence *fromPixSeq, const DcmCodecParameter *cp, DcmItem *dataset, OFString &decompressedColorModel) const =0 |
| determine color model of the decompressed image More... | |
Private Member Functions | |
| virtual DJDecoder * | createDecoderInstance (const DcmRepresentationParameter *toRepParam, const DJCodecParameter *cp, Uint8 bitsPerSample, OFBool isYBR) const |
| creates an instance of the compression library to be used for decoding. More... | |
Additional Inherited Members | |
| Static Public Member Functions inherited from DcmCodec | |
| static OFCondition | insertStringIfMissing (DcmItem *dataset, const DcmTagKey &tag, const char *val) |
| helper function that inserts a string attribute with a given value into a dataset if missing in the dataset. More... | |
| static OFCondition | convertToSecondaryCapture (DcmItem *dataset) |
| helper function that converts a dataset containing a DICOM image into a valid (standard extended) Secondary Capture object by inserting all attributes that are type 1/2 in Secondary Capture and missing in the source dataset. More... | |
| static OFCondition | newInstance (DcmItem *dataset, const char *purposeOfReferenceCodingScheme=NULL, const char *purposeOfReferenceCodeValue=NULL, const char *purposeOfReferenceCodeMeaning=NULL) |
| create new SOP instance UID and Source Image Sequence referencing the old SOP instance (if present) More... | |
| static OFCondition | updateImageType (DcmItem *dataset) |
| set first value of Image Type to DERIVED. More... | |
| static OFCondition | insertCodeSequence (DcmItem *dataset, const DcmTagKey &tagKey, const char *codingSchemeDesignator, const char *codeValue, const char *codeMeaning) |
| insert code sequence into the given dataset More... | |
| static OFCondition | determineStartFragment (Uint32 frameNo, Sint32 numberOfFrames, DcmPixelSequence *fromPixSeq, Uint32 ¤tItem) |
| determine the index number (starting with zero) of the compressed pixel data fragment corresponding to the given frame (also starting with zero) More... | |
Detailed Description
Decoder class for JPEG Progressive (lossy, 8/12-bit)
Member Function Documentation
◆ createDecoderInstance()
|
privatevirtual |
creates an instance of the compression library to be used for decoding.
- Parameters
-
toRepParam representation parameter passed to decode() cp codec parameter passed to decode() bitsPerSample bits per sample for the image data isYBR flag indicating whether DICOM photometric interpretation is YCbCr
- Returns
- pointer to newly allocated decoder object
Implements DJCodecDecoder.
◆ isLosslessProcess()
|
virtual |
returns true if the transfer syntax supported by this codec is lossless.
- Returns
- lossless flag
Implements DJCodecDecoder.
◆ supportedTransferSyntax()
|
virtual |
returns the transfer syntax that this particular codec is able to encode and decode.
- Returns
- supported transfer syntax
Implements DJCodecDecoder.
The documentation for this class was generated from the following file:
- dcmjpeg/include/dcmtk/dcmjpeg/djdecpro.h