RAW - Implementation of operations for raw encoding

Data Structures
struct	opj_raw
	RAW encoding operations. More...

Typedefs
typedef struct opj_raw	opj_raw_t
	RAW encoding operations. More...

Exported functions
opj_raw_t *	opj_raw_create (void)
	Create a new RAW handle. More...
void	opj_raw_destroy (opj_raw_t *raw)
	Destroy a previously created RAW handle. More...
OPJ_UINT32	opj_raw_numbytes (opj_raw_t *raw)
	Return the number of bytes written/read since initialisation. More...
void	opj_raw_init_dec (opj_raw_t *raw, OPJ_BYTE *bp, OPJ_UINT32 len)
	Initialize the decoder. More...
OPJ_UINT32	opj_raw_decode (opj_raw_t *raw)
	Decode a symbol using raw-decoder. More...

Detailed Description

Typedef Documentation

typedef struct opj_raw opj_raw_t

RAW encoding operations.

Function Documentation

opj_raw_t* opj_raw_create

(

void

)

Create a new RAW handle.

Returns

Returns a new RAW handle if successful, returns NULL otherwise

References opj_malloc().

Referenced by opj_t1_create().

OPJ_UINT32 opj_raw_decode

(

opj_raw_t *

raw

)

Decode a symbol using raw-decoder.

Cfr p.506 TAUBMAN

Parameters

raw	RAW handle

Returns

Returns the decoded symbol (0 or 1)

References opj_raw::c, opj_raw::ct, opj_raw::len, opj_raw::lenmax, and opj_raw::start.

Referenced by opj_t1_dec_refpass_step_raw(), and opj_t1_dec_sigpass_step_raw().

void opj_raw_destroy

(

opj_raw_t *

raw

)

Destroy a previously created RAW handle.

Parameters

raw	RAW handle to destroy

References opj_free().

Referenced by opj_t1_destroy().

void opj_raw_init_dec	(	opj_raw_t *	raw,
		OPJ_BYTE *	bp,
		OPJ_UINT32	len
	)

Initialize the decoder.

Parameters

raw	RAW handle
bp	Pointer to the start of the buffer from which the bytes will be read
len	Length of the input buffer

References opj_raw::c, opj_raw::ct, opj_raw::len, opj_raw::lenmax, and opj_raw::start.

Referenced by opj_t1_decode_cblk().

OPJ_UINT32 opj_raw_numbytes

(

opj_raw_t *

raw

)

Return the number of bytes written/read since initialisation.

Parameters

raw	RAW handle to destroy

Returns

Returns the number of bytes already encoded

References opj_raw::bp, and opj_raw::start.