t1.h File Reference

Implementation of the tier-1 coding (coding of code-block coefficients) (T1) More...

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Data Structures
struct	opj_t1
	Tier-1 coding (coding of code-block coefficients) More...

Macros
#define	T1_NMSEDEC_BITS   7
#define	T1_SIG_NE   0x0001
	Context orientation : North-East direction. More...
#define	T1_SIG_SE   0x0002
	Context orientation : South-East direction. More...
#define	T1_SIG_SW   0x0004
	Context orientation : South-West direction. More...
#define	T1_SIG_NW   0x0008
	Context orientation : North-West direction. More...
#define	T1_SIG_N   0x0010
	Context orientation : North direction. More...
#define	T1_SIG_E   0x0020
	Context orientation : East direction. More...
#define	T1_SIG_S   0x0040
	Context orientation : South direction. More...
#define	T1_SIG_W   0x0080
	Context orientation : West direction. More...
#define	T1_SIG_OTH   (T1_SIG_N|T1_SIG_NE|T1_SIG_E|T1_SIG_SE|T1_SIG_S|T1_SIG_SW|T1_SIG_W|T1_SIG_NW)
#define	T1_SIG_PRIM   (T1_SIG_N|T1_SIG_E|T1_SIG_S|T1_SIG_W)
#define	T1_SGN_N   0x0100
#define	T1_SGN_E   0x0200
#define	T1_SGN_S   0x0400
#define	T1_SGN_W   0x0800
#define	T1_SGN   (T1_SGN_N|T1_SGN_E|T1_SGN_S|T1_SGN_W)
#define	T1_SIG   0x1000
#define	T1_REFINE   0x2000
#define	T1_VISIT   0x4000
#define	T1_NUMCTXS_ZC   9
#define	T1_NUMCTXS_SC   5
#define	T1_NUMCTXS_MAG   3
#define	T1_NUMCTXS_AGG   1
#define	T1_NUMCTXS_UNI   1
#define	T1_CTXNO_ZC   0
#define	T1_CTXNO_SC   (T1_CTXNO_ZC+T1_NUMCTXS_ZC)
#define	T1_CTXNO_MAG   (T1_CTXNO_SC+T1_NUMCTXS_SC)
#define	T1_CTXNO_AGG   (T1_CTXNO_MAG+T1_NUMCTXS_MAG)
#define	T1_CTXNO_UNI   (T1_CTXNO_AGG+T1_NUMCTXS_AGG)
#define	T1_NUMCTXS   (T1_CTXNO_UNI+T1_NUMCTXS_UNI)
#define	T1_NMSEDEC_FRACBITS   (T1_NMSEDEC_BITS-1)
#define	T1_TYPE_MQ   0
	Normal coding using entropy coder. More...
#define	T1_TYPE_RAW   1
	No encoding the information is store under raw format in codestream (mode switch RAW) More...
#define	MACRO_t1_flags(x, y)   t1->flags[((x)*(t1->flags_stride))+(y)]

Typedefs
typedef OPJ_INT16	opj_flag_t
typedef struct opj_t1	opj_t1_t
	Tier-1 coding (coding of code-block coefficients) More...

Functions
Exported functions
OPJ_BOOL	opj_t1_encode_cblks (opj_t1_t *t1, opj_tcd_tile_t *tile, opj_tcp_t *tcp, const OPJ_FLOAT64 *mct_norms, OPJ_UINT32 mct_numcomps)
	Encode the code-blocks of a tile. More...
OPJ_BOOL	opj_t1_decode_cblks (opj_t1_t *t1, opj_tcd_tilecomp_t *tilec, opj_tccp_t *tccp)
	Decode the code-blocks of a tile. More...
opj_t1_t *	opj_t1_create (OPJ_BOOL isEncoder)
	Creates a new Tier 1 handle and initializes the look-up tables of the Tier-1 coder/decoder. More...
void	opj_t1_destroy (opj_t1_t *p_t1)
	Destroys a previously created T1 handle. More...

Detailed Description

Implementation of the tier-1 coding (coding of code-block coefficients) (T1)

The functions in T1.C have for goal to realize the tier-1 coding operation. The functions in T1.C are used by some function in TCD.C.