Markers Struct

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.

Namespace: CSJ2K.j2k.codestream

Assembly: C1.WPF.ReportViewer.4.6.2.dll

Syntax

public struct Markers

Public Structure Markers

Fields

Name	Description
COC	Coding style component (COC): 0xFF53
COD	Coding style default (COD): 0xFF52
COM	Comment (COM): 0xFF64
CRG	Component registration (CRG): 0xFF63
EOC	End of codestream (EOC): 0xFFD9
EPH	End of packet header (EPH): 0xFF92
EPH_LENGTH	Length of EPH marker (in bytes)
ERS_SEG_SYMBOLS	The "segmentation symbols used" flag within Sers: 2
ERS_SOP	The "SOP marker segments used" flag within Sers: 1
MAX_COMP_BITDEPTH	The maximum number of component bitdepth
MAX_LPPM	Maximum length of PPM marker segment
MAX_LPPT	Maximum length of PPT marker segment
PLM	Packet length, main header (PLM): 0xFF57
PLT	Packet length, tile-part header (PLT): 0xFF58
POC
PPM	Packed packet headers, main header (PPM): 0xFF60
PPT	Packed packet headers, tile-part header (PPT): 0xFF61
PRECINCT_PARTITION_DEF_SIZE	The default size exponent of the precincts
QCC	Quantization component (QCC): 0xFF5D
QCD	Quantization default (QCD): 0xFF5C
RCOM_GEN_USE	General use registration value (COM): 0x0001
RGN	Region-of-interest (RGN): 0xFF5E
RSIZ_BASELINE	No special capabilities (baseline) in codestream, in Rsiz field of SIZ marker: 0x00. All flag bits are turned off
RSIZ_ER_FLAG	Error resilience marker flag bit in Rsiz field in SIZ marker: 0x01
RSIZ_ROI	ROI present marker flag bit in Rsiz field in SIZ marker: 0x02
SCOX_HOR_CB_PART	Horizontal code-block partition origin is at x=1
SCOX_PRECINCT_PARTITION	Precinct used flag
SCOX_USE_EPH	Use end of packet header marker
SCOX_USE_SOP	Use start of packet marker
SCOX_VER_CB_PART	Vertical code-block partition origin is at y=1
SIZ	SIZ marker (Image and tile size): 0xFF51
SOC	Start of codestream (SOC): 0xFF4F
SOD	Start of data (SOD): 0xFF93
SOP	Start pf packet (SOP): 0xFF91
SOP_LENGTH	Length of SOP marker (in bytes)
SOT	Start of tile-part (SOT): 0xFF90
SQCX_EXP_MASK	Exponent bitmask in SPQCX when no quantization: 3
SQCX_EXP_SHIFT	Exponent shift in SPQCX when no quantization: 3
SQCX_GB_MSK	Guard bits mask in SQCX field: 7
SQCX_GB_SHIFT	Guard bits shift in SQCX field: 5
SQCX_NO_QUANTIZATION	No quantization (i.e. embedded reversible) flag for Sqcd or Sqcc (Sqcx) fields: 0x00.
SQCX_SCALAR_DERIVED	Scalar derived (i.e. LL values only) quantization flag for Sqcd or Sqcc (Sqcx) fields: 0x01.
SQCX_SCALAR_EXPOUNDED	Scalar expounded (i.e. all values) quantization flag for Sqcd or Sqcc (Sqcx) fields: 0x02.
SRGN_IMPLICIT	Implicit (i.e. max-shift) ROI flag for Srgn field in RGN marker segment: 0x00
SSIZ_DEPTH_BITS	Component bitdepth bits in Ssiz field in SIZ marker: 7
TLM	Tile-part lengths (TLM): 0xFF55