Implementation of an MQ-Coder (MQC). More...

#include <LSIMqc.h>

Classes
struct	opj_mqc
struct	opj_mqc_state_t
Public Types
typedef struct lsi::CMqc::opj_mqc_state_t *	LPopj_mqc_state_t
typedef struct lsi::CMqc::opj_mqc_state_t	LPCopj_mqc_state_t
typedef struct lsi::CMqc::opj_mqc	opj_mqc_t
Static Public Member Functions
static opj_mqc_t *LSE_CALL	mqc_create ()
static LSVOID LSE_CALL	mqc_destroy (opj_mqc_t *_pmMqc)
static LSINT32 LSE_CALL	mqc_numbytes (opj_mqc_t *_pmMqc)
static LSVOID LSE_CALL	mqc_resetstates (opj_mqc_t *_pmMqc)
static LSVOID LSE_CALL	mqc_setstate (opj_mqc_t *_pmMqc, LSINT32 _i32ContextNo, LSINT32 _i32Msb, LSINT32 _i32Prob)
static LSVOID LSE_CALL	mqc_init_enc (opj_mqc_t _pmMqc, LSUINT8 _pui8Buffer)
static LSVOID LSE_CALL	mqc_encode (opj_mqc_t *_pmMqc, LSINT32 _i32D)
static LSVOID LSE_CALL	mqc_flush (opj_mqc_t *_pmMqc)
static LSVOID LSE_CALL	mqc_bypass_init_enc (opj_mqc_t *_pmMqc)
static LSVOID LSE_CALL	mqc_bypass_enc (opj_mqc_t *_pmMqc, LSINT32 _i32D)
static LSINT32 LSE_CALL	mqc_bypass_flush_enc (opj_mqc_t *_pmMqc)
static LSVOID LSE_CALL	mqc_reset_enc (opj_mqc_t *_pmMqc)
static LSINT32 LSE_CALL	mqc_restart_enc (opj_mqc_t *_pmMqc)
static LSVOID LSE_CALL	mqc_restart_init_enc (opj_mqc_t *_pmMqc)
static LSVOID LSE_CALL	mqc_erterm_enc (opj_mqc_t *_pmMqc)
static LSVOID LSE_CALL	mqc_segmark_enc (opj_mqc_t *_pmMqc)
static LSVOID LSE_CALL	mqc_init_dec (opj_mqc_t _pmMqc, LSUINT8 _pui8Buffer, LSINT32 _i32Len)
static LSINT32 LSE_CALL	mqc_decode (opj_mqc_t *const _pmMqc)
Static Protected Member Functions
static LSVOID LSE_CALL	mqc_byteout (opj_mqc_t *_pmMqc)
static LSVOID LSE_CALL	mqc_renorme (opj_mqc_t *_pmMqc)
static LSVOID LSE_CALL	mqc_codemps (opj_mqc_t *_pmMqc)
static LSVOID LSE_CALL	mqc_codelps (opj_mqc_t *_pmMqc)
static LSVOID LSE_CALL	mqc_setbits (opj_mqc_t *_pmMqc)
static LSINT32 LSE_CALL	mqc_mpsexchange (opj_mqc_t *const _pmMqc)
static LSINT32 LSE_CALL	mqc_lpsexchange (opj_mqc_t *const _pmMqc)
static LSVOID LSE_CALL	mqc_bytein (opj_mqc_t *const _pmMqc)
static LSVOID LSE_CALL	mqc_renormd (opj_mqc_t *const _pmMqc)
Static Protected Attributes
static opj_mqc_state_t	mqc_states [47 *2]

Detailed Description

Implementation of an MQ-Coder (MQC).

Class CMqc Description: Implementation of an MQ-Coder (MQC).

Member Typedef Documentation

typedef struct lsi::CMqc::opj_mqc_state_t * lsi::CMqc::LPopj_mqc_state_t

This struct defines the state of a context.

typedef struct lsi::CMqc::opj_mqc lsi::CMqc::opj_mqc_t

MQ coder

Member Function Documentation

static LSVOID LSE_CALL lsi::CMqc::mqc_bypass_enc	(	opj_mqc_t *	_pmMqc,
		LSINT32	_i32D
	)		`[static]`

BYPASS mode switch, coding operation. JPEG 2000 p 505.

Not fully implemented and tested!

.

Parameters:

_pmMqc	MQC handle.
_i32D	The symbol to be encoded (0 or 1).

static LSINT32 LSE_CALL lsi::CMqc::mqc_bypass_flush_enc ( opj_mqc_t * _pmMqc ) [static]

BYPASS mode switch, flush operation.

Not fully implemented and tested!

.

Parameters:

_pmMqc MQC handle.

Returns:: Returns 1 (always).

static LSVOID LSE_CALL lsi::CMqc::mqc_bypass_init_enc ( opj_mqc_t * _pmMqc ) [static]

BYPASS mode switch, initialization operation. JPEG 2000 p 505.

Not fully implemented and tested!

.

Parameters:

_pmMqc MQC handle.

static LSVOID LSE_CALL lsi::CMqc::mqc_bytein ( opj_mqc_t *const _pmMqc ) [static, protected]

Input a byte.

Parameters:

_pmMqc MQC handle.

static LSVOID LSE_CALL lsi::CMqc::mqc_byteout ( opj_mqc_t * _pmMqc ) [static, protected]

Output a byte, doing bit-stuffing if necessary. After a 0xFF byte, the next byte must be smaller than 0x90.

Parameters:

_pmMqc MQC handle.

static LSVOID LSE_CALL lsi::CMqc::mqc_codelps ( opj_mqc_t * _pmMqc ) [static, protected]

Encode the most least symbol.

Parameters:

_pmMqc MQC handle.

static LSVOID LSE_CALL lsi::CMqc::mqc_codemps ( opj_mqc_t * _pmMqc ) [static, protected]

Encode the most probable symbol.

Parameters:

_pmMqc MQC handle.

static opj_mqc_t* LSE_CALL lsi::CMqc::mqc_create ( ) [static]

Create a new MQC handle.

Returns:: Returns a new MQC handle if successful, returns NULL otherwise.

static LSINT32 LSE_CALL lsi::CMqc::mqc_decode ( opj_mqc_t *const _pmMqc ) [static]

Decode a symbol.

Parameters:

_pmMqc MQC handle.

Returns:: Returns the decoded symbol (0 or 1).

static LSVOID LSE_CALL lsi::CMqc::mqc_destroy ( opj_mqc_t * _pmMqc ) [static]

Destroy a previously created MQC handle.

Parameters:

_pmMqc MQC handle to destroy.

static LSVOID LSE_CALL lsi::CMqc::mqc_encode	(	opj_mqc_t *	_pmMqc,
		LSINT32	_i32D
	)		`[static]`

Encode a symbol using the MQ-coder.

Parameters:

_pmMqc	MQC handle.
_i32D	The symbol to be encoded (0 or 1).

static LSVOID LSE_CALL lsi::CMqc::mqc_erterm_enc ( opj_mqc_t * _pmMqc ) [static]

ERTERM mode switch (PTERM).

Parameters:

_pmMqc MQC handle.

static LSVOID LSE_CALL lsi::CMqc::mqc_flush ( opj_mqc_t * _pmMqc ) [static]

Flush the encoder, so that all remaining data is written.

Parameters:

_pmMqc MQC handle.

static LSVOID LSE_CALL lsi::CMqc::mqc_init_dec	(	opj_mqc_t *	_pmMqc,
		LSUINT8 *	_pui8Buffer,
		LSINT32	_i32Len
	)		`[static]`

Initialize the decoder.

Parameters:

_pmMqc	MQC handle.
_pui8Buffer	Pointer to the start of the buffer from which the bytes will be read.
_i32Len	Length of the input buffer.

static LSVOID LSE_CALL lsi::CMqc::mqc_init_enc	(	opj_mqc_t *	_pmMqc,
		LSUINT8 *	_pui8Buffer
	)		`[static]`

Initialize the encoder.

Parameters:

_pmMqc	MQC handle.
_pui8Buffer	Pointer to the start of the buffer where the bytes will be written.

static LSINT32 LSE_CALL lsi::CMqc::mqc_lpsexchange ( opj_mqc_t *const _pmMqc ) [static, protected]

Undocumented function from the OpenJpeg Library.

Parameters:

_pmMqc MQC handle.

Returns:: Undocumented return from the OpenJpeg Library.

static LSINT32 LSE_CALL lsi::CMqc::mqc_mpsexchange ( opj_mqc_t *const _pmMqc ) [static, protected]

Undocumented function from the OpenJpeg Library.

Parameters:

_pmMqc MQC handle.

Returns:: Undocumented return from the OpenJpeg Library.

static LSINT32 LSE_CALL lsi::CMqc::mqc_numbytes ( opj_mqc_t * _pmMqc ) [static]

Return the number of bytes written/read since initialisation.

Parameters:

_pmMqc MQC handle.

Returns:: Returns the number of bytes already encoded.

static LSVOID LSE_CALL lsi::CMqc::mqc_renormd ( opj_mqc_t *const _pmMqc ) [static, protected]

Renormalize _pmMqc->a and _pmMqc->c while decoding.

Parameters:

_pmMqc MQC handle.

static LSVOID LSE_CALL lsi::CMqc::mqc_renorme ( opj_mqc_t * _pmMqc ) [static, protected]

Renormalize _pmMqc->a and _pmMqc->c while encoding, so that _pmMqc->a stays between 0x8000 and 0x10000.

Parameters:

_pmMqc MQC handle.

static LSVOID LSE_CALL lsi::CMqc::mqc_reset_enc ( opj_mqc_t * _pmMqc ) [static]

RESET mode switch.

Parameters:

_pmMqc MQC handle.

static LSVOID LSE_CALL lsi::CMqc::mqc_resetstates ( opj_mqc_t * _pmMqc ) [static]

Reset the states of all the context of the coder/decoder (each context is set to a state where 0 and 1 are more or less equiprobable).

Parameters:

_pmMqc MQC handle.

static LSINT32 LSE_CALL lsi::CMqc::mqc_restart_enc ( opj_mqc_t * _pmMqc ) [static]

RESTART mode switch (TERMALL).

Parameters:

_pmMqc MQC handle.

Returns:: Returns 1 (always).

static LSVOID LSE_CALL lsi::CMqc::mqc_restart_init_enc ( opj_mqc_t * _pmMqc ) [static]

RESTART mode switch (TERMALL) reinitialisation.

Parameters:

_pmMqc MQC handle.

static LSVOID LSE_CALL lsi::CMqc::mqc_segmark_enc ( opj_mqc_t * _pmMqc ) [static]

SEGMARK mode switch (SEGSYM).

Parameters:

_pmMqc MQC handle.

static LSVOID LSE_CALL lsi::CMqc::mqc_setbits ( opj_mqc_t * _pmMqc ) [static, protected]

Fill _pmMqc->c with 1's for flushing.

Parameters:

_pmMqc MQC handle.

static LSVOID LSE_CALL lsi::CMqc::mqc_setstate	(	opj_mqc_t *	_pmMqc,
		LSINT32	_i32ContextNo,
		LSINT32	_i32Msb,
		LSINT32	_i32Prob
	)		`[static]`

Set the state of a particular context.

Parameters:

_pmMqc	MQC handle.
_i32ContextNo	Number that identifies the context.
_i32Msb	The MSB of the new state of the context.
_i32Prob	Number that identifies the probability of the symbols for the new state of the context.

Member Data Documentation

opj_mqc_state_t lsi::CMqc::mqc_states[47 *2] [static, protected]

This array defines all the possible states for a context.

The documentation for this class was generated from the following file:

F:/My Projects/LSEngine/Modules/LSImageLib/Src/Jpeg/LSIMqc.h

lsi::CMqc Class Reference

Classes

Public Types

Static Public Member Functions

Static Protected Member Functions

Static Protected Attributes

Detailed Description

Member Typedef Documentation

Member Function Documentation

Not fully implemented and tested!

Not fully implemented and tested!

Not fully implemented and tested!

Member Data Documentation