JPEG 2000 structures and defines common to encoder and decoder. More...

#include <stdint.h>
#include "avcodec.h"
#include "mqc.h"
#include "jpeg2000dwt.h"

Data Structures
struct	Jpeg2000T1Context

struct	Jpeg2000TgtNode

struct	Jpeg2000CodingStyle

struct	Jpeg2000QuantStyle

struct	Jpeg2000Pass

struct	Jpeg2000Cblk

struct	Jpeg2000Prec

struct	Jpeg2000Band

struct	Jpeg2000ResLevel

struct	Jpeg2000Component

Macros
#define	JPEG2000_SOP_FIXED_BYTES 0xFF910004

#define	JPEG2000_SOP_BYTE_LENGTH 6

#define	JPEG2000_MAX_DECLEVELS 33

#define	JPEG2000_MAX_RESLEVELS (JPEG2000_MAX_DECLEVELS + 1)

#define	JPEG2000_MAX_PASSES 100

#define	JPEG2000_T1_SIG_N 0x0001

#define	JPEG2000_T1_SIG_E 0x0002

#define	JPEG2000_T1_SIG_W 0x0004

#define	JPEG2000_T1_SIG_S 0x0008

#define	JPEG2000_T1_SIG_NE 0x0010

#define	JPEG2000_T1_SIG_NW 0x0020

#define	JPEG2000_T1_SIG_SE 0x0040

#define	JPEG2000_T1_SIG_SW 0x0080

#define	JPEG2000_T1_SIG_NB

#define	JPEG2000_T1_SGN_N 0x0100

#define	JPEG2000_T1_SGN_S 0x0200

#define	JPEG2000_T1_SGN_W 0x0400

#define	JPEG2000_T1_SGN_E 0x0800

#define	JPEG2000_T1_VIS 0x1000

#define	JPEG2000_T1_SIG 0x2000

#define	JPEG2000_T1_REF 0x4000

#define	JPEG2000_T1_SGN 0x8000

#define	JPEG2000_CBLK_BYPASS 0x01

#define	JPEG2000_CBLK_RESET 0x02

#define	JPEG2000_CBLK_TERMALL 0x04

#define	JPEG2000_CBLK_VSC 0x08

#define	JPEG2000_CBLK_PREDTERM 0x10

#define	JPEG2000_CBLK_SEGSYM 0x20

#define	JPEG2000_CSTY_PREC 0x01

#define	JPEG2000_CSTY_SOP 0x02

#define	JPEG2000_CSTY_EPH 0x04

#define	JPEG2000_PGOD_LRCP 0x00

#define	JPEG2000_PGOD_RLCP 0x01

#define	JPEG2000_PGOD_RPCL 0x02

#define	JPEG2000_PGOD_PCRL 0x03

#define	JPEG2000_PGOD_CPRL 0x04

Enumerations
enum	Jpeg2000Markers { JPEG2000_SOC = 0xff4f, JPEG2000_SIZ = 0xff51, JPEG2000_COD, JPEG2000_COC, JPEG2000_TLM = 0xff55, JPEG2000_PLM = 0xff57, JPEG2000_PLT, JPEG2000_QCD = 0xff5c, JPEG2000_QCC, JPEG2000_RGN, JPEG2000_POC, JPEG2000_PPM, JPEG2000_PPT, JPEG2000_CRG = 0xff63, JPEG2000_COM, JPEG2000_SOT = 0xff90, JPEG2000_SOP, JPEG2000_EPH, JPEG2000_SOD, JPEG2000_EOC = 0xffd9 }

enum	Jpeg2000Quantsty { JPEG2000_QSTY_NONE, JPEG2000_QSTY_SI, JPEG2000_QSTY_SE }

Functions
static int	ff_jpeg2000_ceildivpow2 (int a, int b)

static int	ff_jpeg2000_ceildiv (int a, int b)

void	ff_jpeg2000_init_tier1_luts (void)

void	ff_jpeg2000_set_significance (Jpeg2000T1Context *t1, int x, int y, int negative)

static int	ff_jpeg2000_getsigctxno (int flag, int bandno)

static int	ff_jpeg2000_getrefctxno (int flag)

static int	ff_jpeg2000_getsgnctxno (int flag, int *xorbit)

int	ff_jpeg2000_init_component (Jpeg2000Component comp, Jpeg2000CodingStyle codsty, Jpeg2000QuantStyle qntsty, int cbps, int dx, int dy, AVCodecContext ctx)

void	ff_jpeg2000_reinit (Jpeg2000Component comp, Jpeg2000CodingStyle codsty)

void	ff_jpeg2000_cleanup (Jpeg2000Component comp, Jpeg2000CodingStyle codsty)

static int	needs_termination (int style, int passno)

Variables
uint8_t	ff_jpeg2000_sigctxno_lut [256][4]

static const uint8_t	refctxno_lut [2][2] = { { 14, 15 }, { 16, 16 } }

uint8_t	ff_jpeg2000_sgnctxno_lut [16][16]

uint8_t	ff_jpeg2000_xorbit_lut [16][16]

Detailed Description

JPEG 2000 structures and defines common to encoder and decoder.

Definition in file jpeg2000.h.

Macro Definition Documentation

◆ JPEG2000_SOP_FIXED_BYTES

#define JPEG2000_SOP_FIXED_BYTES 0xFF910004

Definition at line 61 of file jpeg2000.h.

Referenced by jpeg2000_decode_packet().

◆ JPEG2000_SOP_BYTE_LENGTH

#define JPEG2000_SOP_BYTE_LENGTH 6

Definition at line 62 of file jpeg2000.h.

Referenced by jpeg2000_decode_packet().

◆ JPEG2000_MAX_DECLEVELS

#define JPEG2000_MAX_DECLEVELS 33

Definition at line 70 of file jpeg2000.h.

Referenced by get_qcx().

◆ JPEG2000_MAX_RESLEVELS

#define JPEG2000_MAX_RESLEVELS (JPEG2000_MAX_DECLEVELS + 1)

Definition at line 71 of file jpeg2000.h.

Referenced by get_cox().

◆ JPEG2000_MAX_PASSES

#define JPEG2000_MAX_PASSES 100

Definition at line 73 of file jpeg2000.h.

Referenced by encode_tile(), and jpeg2000_decode_packet().

◆ JPEG2000_T1_SIG_N

#define JPEG2000_T1_SIG_N 0x0001

Definition at line 77 of file jpeg2000.h.

Referenced by ff_jpeg2000_set_significance(), getsgnctxno(), and getsigctxno().

◆ JPEG2000_T1_SIG_E

#define JPEG2000_T1_SIG_E 0x0002

Definition at line 78 of file jpeg2000.h.

Referenced by ff_jpeg2000_set_significance(), getsgnctxno(), and getsigctxno().

◆ JPEG2000_T1_SIG_W

#define JPEG2000_T1_SIG_W 0x0004

Definition at line 79 of file jpeg2000.h.

Referenced by ff_jpeg2000_set_significance(), getsgnctxno(), and getsigctxno().

◆ JPEG2000_T1_SIG_S

#define JPEG2000_T1_SIG_S 0x0008

Definition at line 80 of file jpeg2000.h.

Referenced by decode_clnpass(), decode_refpass(), decode_sigpass(), ff_jpeg2000_set_significance(), getsgnctxno(), and getsigctxno().

◆ JPEG2000_T1_SIG_NE

#define JPEG2000_T1_SIG_NE 0x0010

Definition at line 81 of file jpeg2000.h.

Referenced by ff_jpeg2000_set_significance(), and getsigctxno().

◆ JPEG2000_T1_SIG_NW

#define JPEG2000_T1_SIG_NW 0x0020

Definition at line 82 of file jpeg2000.h.

Referenced by ff_jpeg2000_set_significance(), and getsigctxno().

◆ JPEG2000_T1_SIG_SE

#define JPEG2000_T1_SIG_SE 0x0040

Definition at line 83 of file jpeg2000.h.

Referenced by decode_clnpass(), decode_refpass(), decode_sigpass(), ff_jpeg2000_set_significance(), and getsigctxno().

◆ JPEG2000_T1_SIG_SW

#define JPEG2000_T1_SIG_SW 0x0080

Definition at line 84 of file jpeg2000.h.

Referenced by decode_clnpass(), decode_refpass(), decode_sigpass(), ff_jpeg2000_set_significance(), and getsigctxno().

◆ JPEG2000_T1_SIG_NB

#define JPEG2000_T1_SIG_NB

Value:

(JPEG2000_T1_SIG_N  | JPEG2000_T1_SIG_E  |   \
                            JPEG2000_T1_SIG_S  | JPEG2000_T1_SIG_W  |   \
                            JPEG2000_T1_SIG_NE | JPEG2000_T1_SIG_NW |   \
                            JPEG2000_T1_SIG_SE | JPEG2000_T1_SIG_SW)

Definition at line 85 of file jpeg2000.h.

Referenced by decode_clnpass(), decode_sigpass(), encode_clnpass(), and encode_sigpass().

◆ JPEG2000_T1_SGN_N

#define JPEG2000_T1_SGN_N 0x0100

Definition at line 90 of file jpeg2000.h.

Referenced by ff_jpeg2000_set_significance(), and getsgnctxno().

◆ JPEG2000_T1_SGN_S

#define JPEG2000_T1_SGN_S 0x0200

Definition at line 91 of file jpeg2000.h.

Referenced by decode_clnpass(), decode_refpass(), decode_sigpass(), ff_jpeg2000_set_significance(), and getsgnctxno().

◆ JPEG2000_T1_SGN_W

#define JPEG2000_T1_SGN_W 0x0400

Definition at line 92 of file jpeg2000.h.

Referenced by ff_jpeg2000_set_significance(), and getsgnctxno().

◆ JPEG2000_T1_SGN_E

#define JPEG2000_T1_SGN_E 0x0800

Definition at line 93 of file jpeg2000.h.

Referenced by ff_jpeg2000_set_significance(), and getsgnctxno().

◆ JPEG2000_T1_VIS

#define JPEG2000_T1_VIS 0x1000

Definition at line 95 of file jpeg2000.h.

Referenced by decode_clnpass(), decode_refpass(), decode_sigpass(), encode_clnpass(), encode_refpass(), and encode_sigpass().

◆ JPEG2000_T1_SIG

#define JPEG2000_T1_SIG 0x2000

Definition at line 96 of file jpeg2000.h.

Referenced by decode_clnpass(), decode_refpass(), decode_sigpass(), encode_clnpass(), encode_refpass(), encode_sigpass(), and ff_jpeg2000_set_significance().

◆ JPEG2000_T1_REF

#define JPEG2000_T1_REF 0x4000

Definition at line 97 of file jpeg2000.h.

Referenced by decode_refpass(), and encode_refpass().

◆ JPEG2000_T1_SGN

#define JPEG2000_T1_SGN 0x8000

Definition at line 99 of file jpeg2000.h.

Referenced by encode_cblk().

◆ JPEG2000_CBLK_BYPASS

#define JPEG2000_CBLK_BYPASS 0x01

Definition at line 102 of file jpeg2000.h.

Referenced by get_cox(), and needs_termination().

◆ JPEG2000_CBLK_RESET

#define JPEG2000_CBLK_RESET 0x02

Definition at line 103 of file jpeg2000.h.

Referenced by decode_cblk().

◆ JPEG2000_CBLK_TERMALL

#define JPEG2000_CBLK_TERMALL 0x04

Definition at line 104 of file jpeg2000.h.

Referenced by needs_termination().

◆ JPEG2000_CBLK_VSC

#define JPEG2000_CBLK_VSC 0x08

Definition at line 105 of file jpeg2000.h.

Referenced by decode_cblk().

◆ JPEG2000_CBLK_PREDTERM

#define JPEG2000_CBLK_PREDTERM 0x10

Definition at line 106 of file jpeg2000.h.

◆ JPEG2000_CBLK_SEGSYM

#define JPEG2000_CBLK_SEGSYM 0x20

Definition at line 107 of file jpeg2000.h.

Referenced by decode_cblk().

◆ JPEG2000_CSTY_PREC

#define JPEG2000_CSTY_PREC 0x01

Definition at line 110 of file jpeg2000.h.

Referenced by get_cox().

◆ JPEG2000_CSTY_SOP

#define JPEG2000_CSTY_SOP 0x02

Definition at line 111 of file jpeg2000.h.

◆ JPEG2000_CSTY_EPH

#define JPEG2000_CSTY_EPH 0x04

Definition at line 112 of file jpeg2000.h.

Referenced by jpeg2000_decode_packet().

◆ JPEG2000_PGOD_LRCP

#define JPEG2000_PGOD_LRCP 0x00

Definition at line 115 of file jpeg2000.h.

Referenced by jpeg2000_decode_packets_po_iteration().

◆ JPEG2000_PGOD_RLCP

#define JPEG2000_PGOD_RLCP 0x01

Definition at line 116 of file jpeg2000.h.

Referenced by jpeg2000_decode_packets_po_iteration().

◆ JPEG2000_PGOD_RPCL

#define JPEG2000_PGOD_RPCL 0x02

Definition at line 117 of file jpeg2000.h.

Referenced by jpeg2000_decode_packets_po_iteration().

◆ JPEG2000_PGOD_PCRL

#define JPEG2000_PGOD_PCRL 0x03

Definition at line 118 of file jpeg2000.h.

Referenced by jpeg2000_decode_packets_po_iteration().

◆ JPEG2000_PGOD_CPRL

#define JPEG2000_PGOD_CPRL 0x04

Definition at line 119 of file jpeg2000.h.

Referenced by jpeg2000_decode_packets_po_iteration().

Enumeration Type Documentation

◆ Jpeg2000Markers

enum Jpeg2000Markers

Enumerator
JPEG2000_SOC
JPEG2000_SIZ
JPEG2000_COD
JPEG2000_COC
JPEG2000_TLM
JPEG2000_PLM
JPEG2000_PLT
JPEG2000_QCD
JPEG2000_QCC
JPEG2000_RGN
JPEG2000_POC
JPEG2000_PPM
JPEG2000_PPT
JPEG2000_CRG
JPEG2000_COM
JPEG2000_SOT
JPEG2000_SOP
JPEG2000_EPH
JPEG2000_SOD
JPEG2000_EOC

Definition at line 38 of file jpeg2000.h.

◆ Jpeg2000Quantsty

enum Jpeg2000Quantsty

Enumerator
JPEG2000_QSTY_NONE
JPEG2000_QSTY_SI
JPEG2000_QSTY_SE

Definition at line 64 of file jpeg2000.h.

Function Documentation

◆ ff_jpeg2000_ceildivpow2()

static int ff_jpeg2000_ceildivpow2	(	int	a,
		int	b
	)

inlinestatic

Definition at line 216 of file jpeg2000.h.

Referenced by encode_tile(), ff_jpeg2000_init_component(), get_siz(), init_band(), init_prec(), init_tile(), init_tiles(), and jpeg2000_decode_packets_po_iteration().

◆ ff_jpeg2000_ceildiv()

static int ff_jpeg2000_ceildiv	(	int	a,
		int	b
	)

inlinestatic

Definition at line 221 of file jpeg2000.h.

Referenced by get_siz(), and init_tiles().

◆ ff_jpeg2000_init_tier1_luts()

void ff_jpeg2000_init_tier1_luts ( void )

Definition at line 159 of file jpeg2000.c.

Referenced by ff_jpeg2000_ceildiv(), j2kenc_init(), and jpeg2000_init_static_data().

◆ ff_jpeg2000_set_significance()

void ff_jpeg2000_set_significance	(	Jpeg2000T1Context *	t1,
		int	x,
		int	y,
		int	negative
	)

Definition at line 171 of file jpeg2000.c.

Referenced by decode_clnpass(), decode_sigpass(), encode_clnpass(), encode_sigpass(), and ff_jpeg2000_ceildiv().

◆ ff_jpeg2000_getsigctxno()

static int ff_jpeg2000_getsigctxno	(	int	flag,
		int	bandno
	)

inlinestatic

Definition at line 240 of file jpeg2000.h.

Referenced by decode_clnpass(), decode_sigpass(), encode_clnpass(), and encode_sigpass().

◆ ff_jpeg2000_getrefctxno()

static int ff_jpeg2000_getrefctxno ( int flag )

inlinestatic

Definition at line 249 of file jpeg2000.h.

Referenced by decode_refpass(), and encode_refpass().

◆ ff_jpeg2000_getsgnctxno()

static int ff_jpeg2000_getsgnctxno	(	int	flag,
		int *	xorbit
	)

inlinestatic

Definition at line 258 of file jpeg2000.h.

Referenced by decode_clnpass(), decode_sigpass(), encode_clnpass(), and encode_sigpass().

◆ ff_jpeg2000_init_component()

int ff_jpeg2000_init_component	(	Jpeg2000Component *	comp,
		Jpeg2000CodingStyle *	codsty,
		Jpeg2000QuantStyle *	qntsty,
		int	cbps,
		int	dx,
		int	dy,
		AVCodecContext *	ctx
	)

Definition at line 446 of file jpeg2000.c.

Referenced by ff_jpeg2000_getsgnctxno(), init_tile(), and init_tiles().

◆ ff_jpeg2000_reinit()

void ff_jpeg2000_reinit	(	Jpeg2000Component *	comp,
		Jpeg2000CodingStyle *	codsty
	)

Definition at line 559 of file jpeg2000.c.

Referenced by ff_jpeg2000_getsgnctxno(), and reinit().

◆ ff_jpeg2000_cleanup()

void ff_jpeg2000_cleanup	(	Jpeg2000Component *	comp,
		Jpeg2000CodingStyle *	codsty
	)

Definition at line 580 of file jpeg2000.c.

Referenced by cleanup(), ff_jpeg2000_getsgnctxno(), and jpeg2000_dec_cleanup().

◆ needs_termination()

static int needs_termination	(	int	style,
		int	passno
	)

inlinestatic

Definition at line 274 of file jpeg2000.h.

Referenced by decode_cblk(), and jpeg2000_decode_packet().

Variable Documentation

◆ ff_jpeg2000_sigctxno_lut

uint8_t ff_jpeg2000_sigctxno_lut[256][4]

Definition at line 95 of file jpeg2000.c.

Referenced by ff_jpeg2000_ceildiv(), ff_jpeg2000_getsigctxno(), and ff_jpeg2000_init_tier1_luts().

◆ refctxno_lut

const uint8_t refctxno_lut[2][2] = { { 14, 15 }, { 16, 16 } }

static

Definition at line 245 of file jpeg2000.h.

Referenced by ff_jpeg2000_getrefctxno().

◆ ff_jpeg2000_sgnctxno_lut

uint8_t ff_jpeg2000_sgnctxno_lut[16][16]

Definition at line 140 of file jpeg2000.c.

Referenced by ff_jpeg2000_getrefctxno(), ff_jpeg2000_getsgnctxno(), and ff_jpeg2000_init_tier1_luts().

◆ ff_jpeg2000_xorbit_lut

uint8_t ff_jpeg2000_xorbit_lut[16][16]

Definition at line 140 of file jpeg2000.c.

Referenced by ff_jpeg2000_getrefctxno(), ff_jpeg2000_getsgnctxno(), and ff_jpeg2000_init_tier1_luts().

Data Structures

Macros

Enumerations

Functions

Variables

Detailed Description

Macro Definition Documentation

◆ JPEG2000_SOP_FIXED_BYTES

◆ JPEG2000_SOP_BYTE_LENGTH

◆ JPEG2000_MAX_DECLEVELS

◆ JPEG2000_MAX_RESLEVELS

◆ JPEG2000_MAX_PASSES

◆ JPEG2000_T1_SIG_N

◆ JPEG2000_T1_SIG_E

◆ JPEG2000_T1_SIG_W

◆ JPEG2000_T1_SIG_S

◆ JPEG2000_T1_SIG_NE

◆ JPEG2000_T1_SIG_NW

◆ JPEG2000_T1_SIG_SE

◆ JPEG2000_T1_SIG_SW

◆ JPEG2000_T1_SIG_NB

◆ JPEG2000_T1_SGN_N

◆ JPEG2000_T1_SGN_S

◆ JPEG2000_T1_SGN_W

◆ JPEG2000_T1_SGN_E

◆ JPEG2000_T1_VIS

◆ JPEG2000_T1_SIG

◆ JPEG2000_T1_REF

◆ JPEG2000_T1_SGN

◆ JPEG2000_CBLK_BYPASS

◆ JPEG2000_CBLK_RESET

◆ JPEG2000_CBLK_TERMALL

◆ JPEG2000_CBLK_VSC

◆ JPEG2000_CBLK_PREDTERM

◆ JPEG2000_CBLK_SEGSYM

◆ JPEG2000_CSTY_PREC

◆ JPEG2000_CSTY_SOP

◆ JPEG2000_CSTY_EPH

◆ JPEG2000_PGOD_LRCP

◆ JPEG2000_PGOD_RLCP

◆ JPEG2000_PGOD_RPCL

◆ JPEG2000_PGOD_PCRL

◆ JPEG2000_PGOD_CPRL

Enumeration Type Documentation

◆ Jpeg2000Markers

◆ Jpeg2000Quantsty

Function Documentation

◆ ff_jpeg2000_ceildivpow2()

◆ ff_jpeg2000_ceildiv()

◆ ff_jpeg2000_init_tier1_luts()

◆ ff_jpeg2000_set_significance()

◆ ff_jpeg2000_getsigctxno()

◆ ff_jpeg2000_getrefctxno()

◆ ff_jpeg2000_getsgnctxno()

◆ ff_jpeg2000_init_component()

◆ ff_jpeg2000_reinit()

◆ ff_jpeg2000_cleanup()

◆ needs_termination()

Variable Documentation

◆ ff_jpeg2000_sigctxno_lut

◆ refctxno_lut

◆ ff_jpeg2000_sgnctxno_lut

◆ ff_jpeg2000_xorbit_lut