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jj2000.j2k.codestream
Interface Markers

All Known Implementing Classes:: FileBitstreamReaderAgent, FileCodestreamWriter, HeaderDecoder, HeaderEncoder, HeaderInfo, SynWTFilter

public interface Markers

This interface defines the values of the different markers in the JPEG 2000 codestream. There are 16 bit values, always appearing in big-endian (most significant byte first) and byte-aligned in the codestream. This interface also defines some other constants such as bit-masks and bit-shifts.

Field Summary

static short COC
          Coding style component (COC): 0xFF53

static short COD
          Coding style default (COD): 0xFF52

static short COM
          Comment (COM): 0xFF64

static short CRG
          Component registration (CRG): 0xFF63

static short EOC
          End of codestream (EOC): 0xFFD9

static short EPH
          End of packet header (EPH): 0xFF92

static short EPH_LENGTH
          Length of EPH marker (in bytes)

static int ERS_SEG_SYMBOLS
          The "segmentation symbols used" flag within Sers: 2

static int ERS_SOP
          The "SOP marker segments used" flag within Sers: 1

static int MAX_COMP_BITDEPTH
          The maximum number of component bitdepth

static int MAX_LPPM
          Maximum length of PPM marker segment

static int MAX_LPPT
          Maximum length of PPT marker segment

static short PLM
          Packet length, main header (PLM): 0xFF57

static short PLT
          Packet length, tile-part header (PLT): 0xFF58

static short POC


static short PPM
          Packed packet headers, main header (PPM): 0xFF60

static short PPT
          Packed packet headers, tile-part header (PPT): 0xFF61

static int PRECINCT_PARTITION_DEF_SIZE
          The default size exponent of the precincts

static short QCC
          Quantization component (QCC): 0xFF5D

static short QCD
          Quantization default (QCD): 0xFF5C

static short RCOM_GEN_USE
          General use registration value (COM): 0x0001

static short RGN
          Region-of-interest (RGN): 0xFF5E

static int RSIZ_BASELINE
          No special capabilities (baseline) in codestream, in Rsiz field of SIZ marker: 0x00.

static int RSIZ_ER_FLAG
          Error resilience marker flag bit in Rsiz field in SIZ marker: 0x01

static int RSIZ_ROI
          ROI present marker flag bit in Rsiz field in SIZ marker: 0x02

static int SCOX_HOR_CB_PART
          Horizontal code-block partition origin is at x=1

static int SCOX_PRECINCT_PARTITION
          Precinct used flag

static int SCOX_USE_EPH
          Use end of packet header marker

static int SCOX_USE_SOP
          Use start of packet marker

static int SCOX_VER_CB_PART
          Vertical code-block partition origin is at y=1

static short SIZ
          SIZ marker (Image and tile size): 0xFF51

static short SOC
          Start of codestream (SOC): 0xFF4F

static short SOD
          Start of data (SOD): 0xFF93

static short SOP
          Start pf packet (SOP): 0xFF91

static short SOP_LENGTH
          Length of SOP marker (in bytes)

static short SOT
          Start of tile-part (SOT): 0xFF90

static int SQCX_EXP_MASK
          Exponent bitmask in SPQCX when no quantization: 3

static int SQCX_EXP_SHIFT
          Exponent shift in SPQCX when no quantization: 3

static int SQCX_GB_MSK
          Guard bits mask in SQCX field: 7

static int SQCX_GB_SHIFT
          Guard bits shift in SQCX field: 5

static int SQCX_NO_QUANTIZATION
          No quantization (i.e.

static int SQCX_SCALAR_DERIVED
          Scalar derived (i.e.

static int SQCX_SCALAR_EXPOUNDED
          Scalar expounded (i.e.

static int SRGN_IMPLICIT
          Implicit (i.e.

static int SSIZ_DEPTH_BITS
          Component bitdepth bits in Ssiz field in SIZ marker: 7

static short TLM
          Tile-part lengths (TLM): 0xFF55

Field Detail

SOC

public static final short SOC

Start of codestream (SOC): 0xFF4F

See Also:: Constant Field Values

SOT

public static final short SOT

Start of tile-part (SOT): 0xFF90

See Also:: Constant Field Values

SOD

public static final short SOD

Start of data (SOD): 0xFF93

See Also:: Constant Field Values

EOC

public static final short EOC

End of codestream (EOC): 0xFFD9

See Also:: Constant Field Values

SIZ

public static final short SIZ

SIZ marker (Image and tile size): 0xFF51

See Also:: Constant Field Values

RSIZ_BASELINE

public static final int RSIZ_BASELINE

No special capabilities (baseline) in codestream, in Rsiz field of SIZ marker: 0x00. All flag bits are turned off

See Also:: Constant Field Values

RSIZ_ER_FLAG

public static final int RSIZ_ER_FLAG

Error resilience marker flag bit in Rsiz field in SIZ marker: 0x01

See Also:: Constant Field Values

RSIZ_ROI

public static final int RSIZ_ROI

ROI present marker flag bit in Rsiz field in SIZ marker: 0x02

See Also:: Constant Field Values

SSIZ_DEPTH_BITS

public static final int SSIZ_DEPTH_BITS

Component bitdepth bits in Ssiz field in SIZ marker: 7

See Also:: Constant Field Values

MAX_COMP_BITDEPTH

public static final int MAX_COMP_BITDEPTH

The maximum number of component bitdepth

See Also:: Constant Field Values

COD

public static final short COD

Coding style default (COD): 0xFF52

See Also:: Constant Field Values

COC

public static final short COC

Coding style component (COC): 0xFF53

See Also:: Constant Field Values

SCOX_PRECINCT_PARTITION

public static final int SCOX_PRECINCT_PARTITION

Precinct used flag

See Also:: Constant Field Values

SCOX_USE_SOP

public static final int SCOX_USE_SOP

Use start of packet marker

See Also:: Constant Field Values

SCOX_USE_EPH

public static final int SCOX_USE_EPH

Use end of packet header marker

See Also:: Constant Field Values

SCOX_HOR_CB_PART

public static final int SCOX_HOR_CB_PART

Horizontal code-block partition origin is at x=1

See Also:: Constant Field Values

SCOX_VER_CB_PART

public static final int SCOX_VER_CB_PART

Vertical code-block partition origin is at y=1

See Also:: Constant Field Values

PRECINCT_PARTITION_DEF_SIZE

public static final int PRECINCT_PARTITION_DEF_SIZE

The default size exponent of the precincts

See Also:: Constant Field Values

RGN

public static final short RGN

Region-of-interest (RGN): 0xFF5E

See Also:: Constant Field Values

SRGN_IMPLICIT

public static final int SRGN_IMPLICIT

Implicit (i.e. max-shift) ROI flag for Srgn field in RGN marker segment: 0x00

See Also:: Constant Field Values

QCD

public static final short QCD

Quantization default (QCD): 0xFF5C

See Also:: Constant Field Values

QCC

public static final short QCC

Quantization component (QCC): 0xFF5D

See Also:: Constant Field Values

SQCX_GB_SHIFT

public static final int SQCX_GB_SHIFT

Guard bits shift in SQCX field: 5

See Also:: Constant Field Values

SQCX_GB_MSK

public static final int SQCX_GB_MSK

Guard bits mask in SQCX field: 7

See Also:: Constant Field Values

SQCX_NO_QUANTIZATION

public static final int SQCX_NO_QUANTIZATION

No quantization (i.e. embedded reversible) flag for Sqcd or Sqcc (Sqcx) fields: 0x00.

See Also:: Constant Field Values

SQCX_SCALAR_DERIVED

public static final int SQCX_SCALAR_DERIVED

Scalar derived (i.e. LL values only) quantization flag for Sqcd or Sqcc (Sqcx) fields: 0x01.

See Also:: Constant Field Values

SQCX_SCALAR_EXPOUNDED

public static final int SQCX_SCALAR_EXPOUNDED

Scalar expounded (i.e. all values) quantization flag for Sqcd or Sqcc (Sqcx) fields: 0x02.

See Also:: Constant Field Values

SQCX_EXP_SHIFT

public static final int SQCX_EXP_SHIFT

Exponent shift in SPQCX when no quantization: 3

See Also:: Constant Field Values

SQCX_EXP_MASK

public static final int SQCX_EXP_MASK

Exponent bitmask in SPQCX when no quantization: 3

See Also:: Constant Field Values

ERS_SOP

public static final int ERS_SOP

The "SOP marker segments used" flag within Sers: 1

See Also:: Constant Field Values

ERS_SEG_SYMBOLS

public static final int ERS_SEG_SYMBOLS

The "segmentation symbols used" flag within Sers: 2

See Also:: Constant Field Values

POC

public static final short POC

See Also:: Constant Field Values

TLM

public static final short TLM

Tile-part lengths (TLM): 0xFF55

See Also:: Constant Field Values

PLM

public static final short PLM

Packet length, main header (PLM): 0xFF57

See Also:: Constant Field Values

PLT

public static final short PLT

Packet length, tile-part header (PLT): 0xFF58

See Also:: Constant Field Values

PPM

public static final short PPM

Packed packet headers, main header (PPM): 0xFF60

See Also:: Constant Field Values

PPT

public static final short PPT

Packed packet headers, tile-part header (PPT): 0xFF61

See Also:: Constant Field Values

MAX_LPPT

public static final int MAX_LPPT

Maximum length of PPT marker segment

See Also:: Constant Field Values

MAX_LPPM

public static final int MAX_LPPM

Maximum length of PPM marker segment

See Also:: Constant Field Values

SOP

public static final short SOP

Start pf packet (SOP): 0xFF91

See Also:: Constant Field Values

SOP_LENGTH

public static final short SOP_LENGTH

Length of SOP marker (in bytes)

See Also:: Constant Field Values

EPH

public static final short EPH

End of packet header (EPH): 0xFF92

See Also:: Constant Field Values

EPH_LENGTH

public static final short EPH_LENGTH

Length of EPH marker (in bytes)

See Also:: Constant Field Values

CRG

public static final short CRG

Component registration (CRG): 0xFF63

See Also:: Constant Field Values

COM

public static final short COM

Comment (COM): 0xFF64

See Also:: Constant Field Values

RCOM_GEN_USE

public static final short RCOM_GEN_USE

General use registration value (COM): 0x0001

See Also:: Constant Field Values