#include "opj_includes.h"
#include <assert.h>

Functions
Local static functions
static opj_bool	jp2_read_boxhdr (opj_common_ptr cinfo, opj_cio_t cio, opj_jp2_box_t box)
	Read box headers.
static opj_bool	jp2_read_ihdr (opj_jp2_t jp2, opj_cio_t cio)
	Read the IHDR box - Image Header box.
static void	jp2_write_ihdr (opj_jp2_t jp2, opj_cio_t cio)
static void	jp2_write_bpcc (opj_jp2_t jp2, opj_cio_t cio)
static opj_bool	jp2_read_bpcc (opj_jp2_t jp2, opj_cio_t cio)
static void	jp2_write_colr (opj_jp2_t jp2, opj_cio_t cio)
static void	jp2_write_ftyp (opj_jp2_t jp2, opj_cio_t cio)
	Write the FTYP box - File type box.
static opj_bool	jp2_read_ftyp (opj_jp2_t jp2, opj_cio_t cio)
	Read the FTYP box - File type box.
static int	jp2_write_jp2c (opj_jp2_t jp2, opj_cio_t cio, opj_image_t image, opj_codestream_info_t cstr_info)
static opj_bool	jp2_read_jp2c (opj_jp2_t jp2, opj_cio_t cio, unsigned int j2k_codestream_length, unsigned int j2k_codestream_offset)
static void	jp2_write_jp (opj_cio_t *cio)
static opj_bool	jp2_read_jp (opj_jp2_t jp2, opj_cio_t cio)
	Read the JP box - JPEG 2000 signature.
static opj_bool	jp2_read_struct (opj_jp2_t jp2, opj_cio_t cio, opj_jp2_color_t *color)
	Decode the structure of a JP2 file.
static void	jp2_apply_pclr (opj_jp2_color_t color, opj_image_t image, opj_common_ptr cinfo)
	Apply collected palette data.
static opj_bool	jp2_read_pclr (opj_jp2_t jp2, opj_cio_t cio, opj_jp2_box_t box, opj_jp2_color_t color)
	Collect palette data.
static opj_bool	jp2_read_cmap (opj_jp2_t jp2, opj_cio_t cio, opj_jp2_box_t box, opj_jp2_color_t color)
	Collect component mapping data.
static opj_bool	jp2_read_colr (opj_jp2_t jp2, opj_cio_t cio, opj_jp2_box_t box, opj_jp2_color_t color)
	Collect colour specification data.
static int	write_fidx (int offset_jp2c, int length_jp2c, int offset_idx, int length_idx, opj_cio_t *cio)
	Write file Index (superbox).
static void	write_iptr (int offset, int length, opj_cio_t *cio)
	Write index Finder box.
static void	write_prxy (int offset_jp2c, int length_jp2c, int offset_idx, int length_idx, opj_cio_t *cio)
	Write proxy box.
static void	jp2_free_pclr (opj_jp2_color_t *color)
static void	free_color_data (opj_jp2_color_t *color)
static void	jp2_apply_cdef (opj_image_t image, opj_jp2_color_t color)
static opj_bool	jp2_read_cdef (opj_jp2_t jp2, opj_cio_t cio, opj_jp2_box_t box, opj_jp2_color_t color)
opj_bool	jp2_read_jp2h (opj_jp2_t jp2, opj_cio_t cio, opj_jp2_color_t *color)
	Read the JP2H box - JP2 Header box (used in MJ2).
static opj_bool	opj_jp2_check_color (opj_image_t image, opj_jp2_color_t color, opj_common_ptr cinfo)
opj_image_t *	opj_jp2_decode (opj_jp2_t jp2, opj_cio_t cio, opj_codestream_info_t *cstr_info)
	Decode an image from a JPEG-2000 file stream.
void	jp2_write_jp2h (opj_jp2_t jp2, opj_cio_t cio)
	Write the JP2H box - JP2 Header box (used in MJ2).
opj_jp2_t *	jp2_create_decompress (opj_common_ptr cinfo)
	Creates a JP2 decompression structure.
void	jp2_destroy_decompress (opj_jp2_t *jp2)
	Destroy a JP2 decompressor handle.
void	jp2_setup_decoder (opj_jp2_t jp2, opj_dparameters_t parameters)
	Setup the decoder decoding parameters using user parameters.
opj_jp2_t *	jp2_create_compress (opj_common_ptr cinfo)
	Creates a JP2 compression structure.
void	jp2_destroy_compress (opj_jp2_t *jp2)
	Destroy a JP2 compressor handle.
void	jp2_setup_encoder (opj_jp2_t jp2, opj_cparameters_t parameters, opj_image_t *image)
	Setup the encoder parameters using the current image and using user parameters.
opj_bool	opj_jp2_encode (opj_jp2_t jp2, opj_cio_t cio, opj_image_t image, opj_codestream_info_t cstr_info)
	Encode an image into a JPEG-2000 file stream.

Function Documentation

◆ free_color_data()

void free_color_data ( opj_jp2_color_t * color )

static

References opj_jp2_color::icc_profile_buf, opj_jp2_cdef::info, opj_jp2_color::jp2_cdef, jp2_free_pclr(), opj_jp2_color::jp2_pclr, and opj_free.

Referenced by opj_jp2_decode().

◆ jp2_apply_cdef()

void jp2_apply_cdef	(	opj_image_t *	image,
		opj_jp2_color_t *	color )

static

References opj_jp2_cdef_info::asoc, opj_jp2_cdef_info::cn, opj_image::comps, opj_jp2_cdef::info, opj_jp2_color::jp2_cdef, opj_jp2_cdef::n, opj_free, and opj_jp2_cdef_info::typ.

Referenced by opj_jp2_decode().

◆ jp2_apply_pclr()

void jp2_apply_pclr	(	opj_jp2_color_t *	color,
		opj_image_t *	image,
		opj_common_ptr	cinfo )

static

Apply collected palette data.

Parameters

color	Collector for profile, cdef and pclr data
image

References opj_jp2_pclr::channel_sign, opj_jp2_pclr::channel_size, opj_jp2_pclr::cmap, opj_jp2_cmap_comp::cmp, opj_image::comps, opj_image_comp::data, opj_jp2_pclr::entries, EVT_ERROR, opj_image_comp::h, jp2_free_pclr(), opj_jp2_color::jp2_pclr, opj_jp2_pclr::nr_channels, opj_jp2_pclr::nr_entries, opj_image::numcomps, opj_event_msg(), opj_free, opj_malloc, opj_jp2_cmap_comp::pcol, opj_image_comp::prec, opj_image_comp::sgnd, and opj_image_comp::w.

Referenced by opj_jp2_decode().

◆ jp2_create_compress()

opj_jp2_t * jp2_create_compress ( opj_common_ptr cinfo )

Creates a JP2 compression structure.

Parameters

cinfo Codec context info

Returns: Returns a handle to a JP2 compressor if successful, returns NULL otherwise

References opj_jp2::cinfo, opj_jp2::j2k, j2k_create_compress(), jp2_destroy_compress(), and opj_malloc.

Referenced by opj_create_compress().

◆ jp2_create_decompress()

opj_jp2_t * jp2_create_decompress ( opj_common_ptr cinfo )

Creates a JP2 decompression structure.

Parameters

cinfo Codec context info

Returns: Returns a handle to a JP2 decompressor if successful, returns NULL otherwise

References opj_jp2::cinfo, opj_jp2::j2k, j2k_create_decompress(), jp2_destroy_decompress(), and opj_calloc.

Referenced by opj_create_decompress().

◆ jp2_destroy_compress()

void jp2_destroy_compress ( opj_jp2_t * jp2 )

Destroy a JP2 compressor handle.

Parameters

jp2	JP2 compressor handle to destroy

References opj_jp2::cl, opj_jp2::comps, opj_jp2::j2k, j2k_destroy_compress(), and opj_free.

Referenced by jp2_create_compress(), and opj_destroy_compress().

◆ jp2_destroy_decompress()

void jp2_destroy_decompress ( opj_jp2_t * jp2 )

Destroy a JP2 decompressor handle.

Parameters

jp2	JP2 decompressor handle to destroy

References opj_jp2::cl, opj_jp2::comps, opj_jp2::j2k, j2k_destroy_decompress(), and opj_free.

Referenced by jp2_create_decompress(), and opj_destroy_decompress().

◆ jp2_free_pclr()

void jp2_free_pclr ( opj_jp2_color_t * color )

static

References opj_jp2_pclr::channel_sign, opj_jp2_pclr::channel_size, opj_jp2_pclr::cmap, opj_jp2_pclr::entries, opj_jp2_color::jp2_pclr, and opj_free.

Referenced by free_color_data(), jp2_apply_pclr(), and opj_jp2_decode().

◆ jp2_read_boxhdr()

opj_bool jp2_read_boxhdr	(	opj_common_ptr	cinfo,
		opj_cio_t *	cio,
		opj_jp2_box_t *	box )

static

Read box headers.

Parameters

cinfo	Codec context info
cio	Input stream
box

Returns: Returns true if successful, returns false otherwise

References cio_numbytesleft(), cio_read(), cio_tell(), EVT_ERROR, opj_jp2_box::init_pos, opj_jp2_box::length, opj_event_msg(), OPJ_FALSE, OPJ_TRUE, and opj_jp2_box::type.

Referenced by jp2_read_bpcc(), jp2_read_ftyp(), jp2_read_ihdr(), jp2_read_jp(), jp2_read_jp2c(), and jp2_read_jp2h().

◆ jp2_read_bpcc()

opj_bool jp2_read_bpcc	(	opj_jp2_t *	jp2,
		opj_cio_t *	cio )

static

References opj_jp2_comps::bpcc, opj_jp2::cinfo, cio_read(), cio_tell(), opj_jp2::comps, EVT_ERROR, opj_jp2_box::init_pos, JP2_BPCC, jp2_read_boxhdr(), opj_jp2_box::length, opj_jp2::numcomps, opj_event_msg(), OPJ_FALSE, OPJ_TRUE, and opj_jp2_box::type.

Referenced by jp2_read_jp2h().

◆ jp2_read_cdef()

opj_bool jp2_read_cdef	(	opj_jp2_t *	jp2,
		opj_cio_t *	cio,
		opj_jp2_box_t *	box,
		opj_jp2_color_t *	color )

static

References opj_jp2_cdef_info::asoc, cio_read(), opj_jp2_cdef_info::cn, opj_jp2_cdef::info, opj_jp2_color::jp2_cdef, opj_jp2_cdef::n, OPJ_ARG_NOT_USED, OPJ_FALSE, opj_malloc, OPJ_TRUE, and opj_jp2_cdef_info::typ.

Referenced by jp2_read_jp2h().

◆ jp2_read_cmap()

opj_bool jp2_read_cmap	(	opj_jp2_t *	jp2,
		opj_cio_t *	cio,
		opj_jp2_box_t *	box,
		opj_jp2_color_t *	color )

static

Collect component mapping data.

Parameters

jp2	JP2 handle
cio	Input buffer stream
box
color	Collector for profile, cdef and pclr data

Returns: Returns true if successful, returns false otherwise

References cio_read(), opj_jp2_pclr::cmap, opj_jp2_cmap_comp::cmp, opj_jp2_color::jp2_pclr, opj_jp2_cmap_comp::mtyp, opj_jp2_pclr::nr_channels, OPJ_ARG_NOT_USED, OPJ_FALSE, opj_malloc, OPJ_TRUE, and opj_jp2_cmap_comp::pcol.

Referenced by jp2_read_jp2h().

◆ jp2_read_colr()

opj_bool jp2_read_colr	(	opj_jp2_t *	jp2,
		opj_cio_t *	cio,
		opj_jp2_box_t *	box,
		opj_jp2_color_t *	color )

static

Collect colour specification data.

Parameters

jp2	JP2 handle
cio	Input buffer stream
box
color	Collector for profile, cdef and pclr data

Returns: Returns true if successful, returns false otherwise

References opj_jp2::approx, opj_jp2::cinfo, cio_getbp(), cio_read(), cio_skip(), cio_tell(), opj_jp2::enumcs, EVT_ERROR, opj_jp2_color::icc_profile_buf, opj_jp2_color::icc_profile_len, opj_jp2_box::init_pos, opj_jp2_color::jp2_has_colr, opj_jp2_box::length, opj_jp2::meth, opj_event_msg(), OPJ_FALSE, opj_malloc, OPJ_TRUE, and opj_jp2::precedence.

Referenced by jp2_read_jp2h().

◆ jp2_read_ftyp()

opj_bool jp2_read_ftyp	(	opj_jp2_t *	jp2,
		opj_cio_t *	cio )

static

Read the FTYP box - File type box.

Parameters

jp2	JP2 handle
cio	Input buffer stream

Returns: Returns true if successful, returns false otherwise

References opj_jp2::brand, opj_jp2::cinfo, cio_numbytesleft(), cio_read(), cio_tell(), opj_jp2::cl, EVT_ERROR, opj_jp2_box::init_pos, JP2_FTYP, jp2_read_boxhdr(), opj_jp2_box::length, opj_jp2::minversion, opj_jp2::numcl, opj_event_msg(), OPJ_FALSE, opj_malloc, OPJ_TRUE, and opj_jp2_box::type.

Referenced by jp2_read_struct().

◆ jp2_read_ihdr()

opj_bool jp2_read_ihdr	(	opj_jp2_t *	jp2,
		opj_cio_t *	cio )

static

Read the IHDR box - Image Header box.

Parameters

jp2	JP2 handle
cio	Input buffer stream

Returns: Returns true if successful, returns false otherwise

References opj_jp2::bpc, opj_jp2::C, opj_jp2::cinfo, cio_read(), cio_tell(), opj_jp2::comps, EVT_ERROR, opj_jp2::h, opj_jp2_box::init_pos, opj_jp2::IPR, JP2_IHDR, jp2_read_boxhdr(), opj_jp2_box::length, opj_jp2::numcomps, opj_event_msg(), OPJ_FALSE, opj_malloc, OPJ_TRUE, opj_jp2_box::type, opj_jp2::UnkC, and opj_jp2::w.

Referenced by jp2_read_jp2h().

◆ jp2_read_jp()

opj_bool jp2_read_jp	(	opj_jp2_t *	jp2,
		opj_cio_t *	cio )

static

Read the JP box - JPEG 2000 signature.

Parameters

jp2	JP2 handle
cio	Input buffer stream

Returns: Returns true if successful, returns false otherwise

References opj_jp2::cinfo, cio_read(), cio_tell(), EVT_ERROR, opj_jp2_box::init_pos, JP2_JP, jp2_read_boxhdr(), opj_jp2_box::length, opj_event_msg(), OPJ_FALSE, OPJ_TRUE, and opj_jp2_box::type.

Referenced by jp2_read_struct().

◆ jp2_read_jp2c()

opj_bool jp2_read_jp2c	(	opj_jp2_t *	jp2,
		opj_cio_t *	cio,
		unsigned int *	j2k_codestream_length,
		unsigned int *	j2k_codestream_offset )

static

References opj_jp2::cinfo, cio_skip(), cio_tell(), EVT_ERROR, JP2_JP2C, jp2_read_boxhdr(), opj_jp2_box::length, opj_event_msg(), OPJ_FALSE, OPJ_TRUE, and opj_jp2_box::type.

Referenced by jp2_read_struct().

◆ jp2_read_jp2h()

opj_bool jp2_read_jp2h	(	opj_jp2_t *	jp2,
		opj_cio_t *	cio,
		opj_jp2_color_t *	color )

Read the JP2H box - JP2 Header box (used in MJ2).

Parameters

jp2	JP2 handle
cio	Input buffer stream
ext	Collector for profile, cdef and pclr data

Returns: Returns true if successful, returns false otherwise

References opj_cio::bp, opj_jp2::bpc, opj_jp2::cinfo, cio_seek(), cio_skip(), cio_tell(), opj_cio::end, EVT_ERROR, opj_jp2::ignore_pclr_cmap_cdef, opj_jp2_box::init_pos, JP2_CDEF, JP2_CMAP, JP2_COLR, opj_jp2_color::jp2_has_colr, JP2_JP2C, JP2_JP2H, JP2_PCLR, jp2_read_boxhdr(), jp2_read_bpcc(), jp2_read_cdef(), jp2_read_cmap(), jp2_read_colr(), jp2_read_ihdr(), jp2_read_pclr(), opj_jp2_box::length, opj_event_msg(), OPJ_FALSE, and opj_jp2_box::type.

Referenced by jp2_read_struct().

◆ jp2_read_pclr()

opj_bool jp2_read_pclr	(	opj_jp2_t *	jp2,
		opj_cio_t *	cio,
		opj_jp2_box_t *	box,
		opj_jp2_color_t *	color )

static

Collect palette data.

Parameters

jp2	JP2 handle
cio	Input buffer stream
box
color	Collector for profile, cdef and pclr data

Returns: Returns true if successful, returns false otherwise

References opj_jp2_pclr::channel_sign, opj_jp2_pclr::channel_size, cio_read(), opj_jp2_pclr::cmap, opj_jp2_pclr::entries, opj_jp2_color::jp2_pclr, opj_jp2_pclr::nr_channels, opj_jp2_pclr::nr_entries, OPJ_ARG_NOT_USED, OPJ_FALSE, opj_malloc, and OPJ_TRUE.

Referenced by jp2_read_jp2h().

◆ jp2_read_struct()

opj_bool jp2_read_struct	(	opj_jp2_t *	jp2,
		opj_cio_t *	cio,
		opj_jp2_color_t *	color )

static

Decode the structure of a JP2 file.

Parameters

jp2	JP2 handle
cio	Input buffer stream
color	Collector for profile, cdef and pclr data

Returns: Returns true if successful, returns false otherwise

References opj_jp2::j2k_codestream_length, opj_jp2::j2k_codestream_offset, jp2_read_ftyp(), jp2_read_jp(), jp2_read_jp2c(), jp2_read_jp2h(), OPJ_FALSE, and OPJ_TRUE.

Referenced by opj_jp2_decode().

◆ jp2_setup_decoder()

void jp2_setup_decoder	(	opj_jp2_t *	jp2,
		opj_dparameters_t *	parameters )

Setup the decoder decoding parameters using user parameters.

Decoding parameters are returned in jp2->j2k->cp.

Parameters

jp2	JP2 decompressor handle
parameters	decompression parameters

References opj_dparameters::flags, opj_jp2::ignore_pclr_cmap_cdef, opj_jp2::j2k, j2k_setup_decoder(), and OPJ_DPARAMETERS_IGNORE_PCLR_CMAP_CDEF_FLAG.

Referenced by opj_setup_decoder().

◆ jp2_setup_encoder()

void jp2_setup_encoder	(	opj_jp2_t *	jp2,
		opj_cparameters_t *	parameters,
		opj_image_t *	image )

Setup the encoder parameters using the current image and using user parameters.

Coding parameters are returned in jp2->j2k->cp.

Parameters

jp2	JP2 compressor handle
parameters	compression parameters
image	input filled image

References opj_jp2::approx, opj_jp2::bpc, opj_jp2_comps::bpcc, opj_jp2::brand, opj_jp2::C, opj_jp2::cinfo, opj_jp2::cl, opj_image::color_space, opj_image::comps, opj_jp2::comps, opj_jp2::enumcs, EVT_ERROR, opj_jp2::h, opj_jp2::IPR, opj_jp2::j2k, j2k_setup_encoder(), JP2_JP2, opj_cparameters::jpip_on, opj_jp2::jpip_on, opj_jp2::meth, opj_jp2::minversion, opj_jp2::numcl, opj_image::numcomps, opj_jp2::numcomps, opj_event_msg(), opj_malloc, opj_image_comp::prec, opj_jp2::precedence, opj_image_comp::sgnd, opj_jp2::UnkC, opj_jp2::w, opj_image::x0, opj_image::x1, opj_image::y0, and opj_image::y1.

Referenced by opj_setup_encoder().

◆ jp2_write_bpcc()

void jp2_write_bpcc	(	opj_jp2_t *	jp2,
		opj_cio_t *	cio )

static

References opj_jp2_comps::bpcc, cio_seek(), cio_skip(), cio_tell(), cio_write(), opj_jp2::comps, opj_jp2_box::init_pos, JP2_BPCC, opj_jp2_box::length, and opj_jp2::numcomps.

Referenced by jp2_write_jp2h().

◆ jp2_write_colr()

void jp2_write_colr	(	opj_jp2_t *	jp2,
		opj_cio_t *	cio )

static

References opj_jp2::approx, cio_seek(), cio_skip(), cio_tell(), cio_write(), opj_jp2::enumcs, opj_jp2_box::init_pos, JP2_COLR, opj_jp2_box::length, opj_jp2::meth, and opj_jp2::precedence.

Referenced by jp2_write_jp2h().

◆ jp2_write_ftyp()

void jp2_write_ftyp	(	opj_jp2_t *	jp2,
		opj_cio_t *	cio )

static

Write the FTYP box - File type box.

Parameters

jp2	JP2 handle
cio	Output buffer stream

References opj_jp2::brand, cio_seek(), cio_skip(), cio_tell(), cio_write(), opj_jp2::cl, opj_jp2_box::init_pos, JP2_FTYP, opj_jp2_box::length, opj_jp2::minversion, and opj_jp2::numcl.

Referenced by opj_jp2_encode().

◆ jp2_write_ihdr()

void jp2_write_ihdr	(	opj_jp2_t *	jp2,
		opj_cio_t *	cio )

static

References opj_jp2::bpc, opj_jp2::C, cio_seek(), cio_skip(), cio_tell(), cio_write(), opj_jp2::h, opj_jp2_box::init_pos, opj_jp2::IPR, JP2_IHDR, opj_jp2_box::length, opj_jp2::numcomps, opj_jp2::UnkC, and opj_jp2::w.

Referenced by jp2_write_jp2h().

◆ jp2_write_jp()

void jp2_write_jp ( opj_cio_t * cio )

static

References cio_seek(), cio_skip(), cio_tell(), cio_write(), opj_jp2_box::init_pos, JP2_JP, and opj_jp2_box::length.

Referenced by opj_jp2_encode().

◆ jp2_write_jp2c()

int jp2_write_jp2c	(	opj_jp2_t *	jp2,
		opj_cio_t *	cio,
		opj_image_t *	image,
		opj_codestream_info_t *	cstr_info )

static

References opj_j2k::cinfo, cio_seek(), cio_skip(), cio_tell(), cio_write(), EVT_ERROR, opj_jp2_box::init_pos, opj_jp2::j2k, opj_jp2::j2k_codestream_length, opj_jp2::j2k_codestream_offset, j2k_encode(), JP2_JP2C, opj_jp2_box::length, and opj_event_msg().

Referenced by opj_jp2_encode().

◆ jp2_write_jp2h()

void jp2_write_jp2h	(	opj_jp2_t *	jp2,
		opj_cio_t *	cio )

Write the JP2H box - JP2 Header box (used in MJ2).

Parameters

jp2	JP2 handle
cio	Output buffer stream

References opj_jp2::bpc, cio_seek(), cio_skip(), cio_tell(), cio_write(), opj_jp2_box::init_pos, JP2_JP2H, jp2_write_bpcc(), jp2_write_colr(), jp2_write_ihdr(), and opj_jp2_box::length.

Referenced by opj_jp2_encode().

◆ opj_jp2_check_color()

opj_bool opj_jp2_check_color	(	opj_image_t *	image,
		opj_jp2_color_t *	color,
		opj_common_ptr	cinfo )

static

References opj_jp2_pclr::cmap, EVT_ERROR, opj_jp2_cdef::info, opj_jp2_color::jp2_cdef, opj_jp2_color::jp2_pclr, opj_jp2_cdef::n, opj_jp2_pclr::nr_channels, opj_image::numcomps, opj_calloc, opj_event_msg(), OPJ_FALSE, opj_free, OPJ_TRUE, and opj_jp2_cmap_comp::pcol.

Referenced by opj_jp2_decode().

◆ opj_jp2_decode()

opj_image_t * opj_jp2_decode	(	opj_jp2_t *	jp2,
		opj_cio_t *	cio,
		opj_codestream_info_t *	cstr_info )

Decode an image from a JPEG-2000 file stream.

Parameters

jp2	JP2 decompressor handle
cio	Input buffer stream
cstr_info	Codestream information structure if required, NULL otherwise

Returns: Returns a decoded image if successful, returns NULL otherwise

References opj_jp2::cinfo, CLRSPC_GRAY, CLRSPC_SRGB, CLRSPC_SYCC, CLRSPC_UNKNOWN, opj_jp2_pclr::cmap, opj_image::color_space, opj_jp2::enumcs, EVT_ERROR, free_color_data(), opj_image::icc_profile_buf, opj_jp2_color::icc_profile_buf, opj_image::icc_profile_len, opj_jp2_color::icc_profile_len, opj_jp2::ignore_pclr_cmap_cdef, opj_jp2::j2k, j2k_decode(), jp2_apply_cdef(), jp2_apply_pclr(), opj_jp2_color::jp2_cdef, jp2_free_pclr(), opj_jp2_color::jp2_pclr, jp2_read_struct(), opj_event_msg(), and opj_jp2_check_color().

Referenced by opj_decode_with_info().

◆ opj_jp2_encode()

opj_bool opj_jp2_encode	(	opj_jp2_t *	jp2,
		opj_cio_t *	cio,
		opj_image_t *	image,
		opj_codestream_info_t *	cstr_info )

Encode an image into a JPEG-2000 file stream.

Parameters

jp2	JP2 compressor handle
cio	Output buffer stream
image	Image to encode
cstr_info	Codestream information structure if required, NULL otherwise

Returns: Returns true if successful, returns false otherwise

References opj_jp2::cinfo, cio_seek(), cio_skip(), cio_tell(), EVT_ERROR, jp2_write_ftyp(), jp2_write_jp(), jp2_write_jp2c(), jp2_write_jp2h(), opj_jp2::jpip_on, opj_event_msg(), OPJ_FALSE, OPJ_TRUE, write_cidx(), write_fidx(), and write_iptr().

Referenced by opj_encode_with_info().

◆ write_fidx()

int write_fidx	(	int	offset_jp2c,
		int	length_jp2c,
		int	offset_idx,
		int	length_idx,
		opj_cio_t *	cio )

static

Write file Index (superbox).

Parameters

[in]	offset_jp2c	offset of jp2c box
[in]	length_jp2c	length of jp2c box
[in]	offset_idx	offset of cidx box
[in]	length_idx	length of cidx box
[in]	cio	file output handle

Returns: length of fidx box

References cio_seek(), cio_skip(), cio_tell(), cio_write(), JPIP_FIDX, and write_prxy().

Referenced by opj_jp2_encode().

◆ write_iptr()

void write_iptr	(	int	offset,
		int	length,
		opj_cio_t *	cio )

static

Write index Finder box.

Parameters

[in]	offset	offset of fidx box
[in]	length	length of fidx box
[in]	cio	file output handle

References cio_seek(), cio_skip(), cio_tell(), cio_write(), and JPIP_IPTR.

Referenced by opj_jp2_encode().

◆ write_prxy()

void write_prxy	(	int	offset_jp2c,
		int	length_jp2c,
		int	offset_idx,
		int	length_idx,
		opj_cio_t *	cio )

static

Write proxy box.

Parameters

[in]	offset_jp2c	offset of jp2c box
[in]	length_jp2c	length of jp2c box
[in]	offset_idx	offset of cidx box
[in]	length_idx	length of cidx box
[in]	cio	file output handle

References cio_seek(), cio_skip(), cio_tell(), cio_write(), JP2_JP2C, JPIP_CIDX, and JPIP_PRXY.

Referenced by write_fidx().

Functions

Function Documentation

◆ free_color_data()

◆ jp2_apply_cdef()

◆ jp2_apply_pclr()

◆ jp2_create_compress()

◆ jp2_create_decompress()

◆ jp2_destroy_compress()

◆ jp2_destroy_decompress()

◆ jp2_free_pclr()

◆ jp2_read_boxhdr()

◆ jp2_read_bpcc()

◆ jp2_read_cdef()

◆ jp2_read_cmap()

◆ jp2_read_colr()

◆ jp2_read_ftyp()

◆ jp2_read_ihdr()

◆ jp2_read_jp()

◆ jp2_read_jp2c()

◆ jp2_read_jp2h()

◆ jp2_read_pclr()

◆ jp2_read_struct()

◆ jp2_setup_decoder()

◆ jp2_setup_encoder()

◆ jp2_write_bpcc()

◆ jp2_write_colr()

◆ jp2_write_ftyp()

◆ jp2_write_ihdr()

◆ jp2_write_jp()

◆ jp2_write_jp2c()

◆ jp2_write_jp2h()

◆ opj_jp2_check_color()

◆ opj_jp2_decode()

◆ opj_jp2_encode()

◆ write_fidx()

◆ write_iptr()

◆ write_prxy()