#include "opj_includes.h"

Macros
#define	OPJ_BOX_SIZE 1024

#define	OPJ_UNUSED(x) (void)x

Local static functions
static const opj_jp2_header_handler_t	jp2_header []

static const opj_jp2_header_handler_t	jp2_img_header []

static OPJ_BOOL	opj_jp2_read_ihdr (opj_jp2_t jp2, OPJ_BYTE p_image_header_data, OPJ_UINT32 p_image_header_size, opj_event_mgr_t *p_manager)
	Reads a IHDR box - Image Header box. More...

static OPJ_BYTE *	opj_jp2_write_ihdr (opj_jp2_t jp2, OPJ_UINT32 p_nb_bytes_written)
	Writes the Image Header box - Image Header box. More...

static OPJ_BYTE *	opj_jp2_write_bpcc (opj_jp2_t jp2, OPJ_UINT32 p_nb_bytes_written)
	Writes the Bit per Component box. More...

static OPJ_BOOL	opj_jp2_read_bpcc (opj_jp2_t jp2, OPJ_BYTE p_bpc_header_data, OPJ_UINT32 p_bpc_header_size, opj_event_mgr_t *p_manager)
	Reads a Bit per Component box. More...

static OPJ_BOOL	opj_jp2_read_cdef (opj_jp2_t jp2, OPJ_BYTE p_cdef_header_data, OPJ_UINT32 p_cdef_header_size, opj_event_mgr_t *p_manager)

static void	opj_jp2_apply_cdef (opj_image_t image, opj_jp2_color_t color, opj_event_mgr_t *)

static OPJ_BYTE *	opj_jp2_write_cdef (opj_jp2_t jp2, OPJ_UINT32 p_nb_bytes_written)
	Writes the Channel Definition box. More...

static OPJ_BYTE *	opj_jp2_write_colr (opj_jp2_t jp2, OPJ_UINT32 p_nb_bytes_written)
	Writes the Colour Specification box. More...

static OPJ_BOOL	opj_jp2_write_ftyp (opj_jp2_t jp2, opj_stream_private_t cio, opj_event_mgr_t *p_manager)
	Writes a FTYP box - File type box. More...

static OPJ_BOOL	opj_jp2_read_ftyp (opj_jp2_t jp2, OPJ_BYTE p_header_data, OPJ_UINT32 p_header_size, opj_event_mgr_t *p_manager)
	Reads a a FTYP box - File type box. More...

static OPJ_BOOL	opj_jp2_skip_jp2c (opj_jp2_t jp2, opj_stream_private_t stream, opj_event_mgr_t *p_manager)

static OPJ_BOOL	opj_jp2_read_jp2h (opj_jp2_t jp2, OPJ_BYTE p_header_data, OPJ_UINT32 p_header_size, opj_event_mgr_t *p_manager)
	Reads the Jpeg2000 file Header box - JP2 Header box (warning, this is a super box). More...

static OPJ_BOOL	opj_jp2_write_jp2h (opj_jp2_t jp2, opj_stream_private_t stream, opj_event_mgr_t *p_manager)
	Writes the Jpeg2000 file Header box - JP2 Header box (warning, this is a super box). More...

static OPJ_BOOL	opj_jp2_write_jp2c (opj_jp2_t jp2, opj_stream_private_t cio, opj_event_mgr_t *p_manager)
	Writes the Jpeg2000 codestream Header box - JP2C Header box. More...

static OPJ_BOOL	opj_jp2_read_jp (opj_jp2_t jp2, OPJ_BYTE p_header_data, OPJ_UINT32 p_header_size, opj_event_mgr_t *p_manager)
	Reads a jpeg2000 file signature box. More...

static OPJ_BOOL	opj_jp2_write_jp (opj_jp2_t jp2, opj_stream_private_t cio, opj_event_mgr_t *p_manager)
	Writes a jpeg2000 file signature box. More...

static OPJ_BOOL	opj_jp2_apply_pclr (opj_image_t image, opj_jp2_color_t color, opj_event_mgr_t *p_manager)
	Apply collected palette data. More...

static void	opj_jp2_free_pclr (opj_jp2_color_t *color)

static OPJ_BOOL	opj_jp2_read_pclr (opj_jp2_t jp2, OPJ_BYTE p_pclr_header_data, OPJ_UINT32 p_pclr_header_size, opj_event_mgr_t *p_manager)
	Collect palette data. More...

static OPJ_BOOL	opj_jp2_read_cmap (opj_jp2_t jp2, OPJ_BYTE p_cmap_header_data, OPJ_UINT32 p_cmap_header_size, opj_event_mgr_t *p_manager)
	Collect component mapping data. More...

static OPJ_BOOL	opj_jp2_read_colr (opj_jp2_t jp2, OPJ_BYTE p_colr_header_data, OPJ_UINT32 p_colr_header_size, opj_event_mgr_t *p_manager)
	Reads the Color Specification box. More...

static OPJ_BOOL	opj_jp2_setup_end_header_writing (opj_jp2_t jp2, opj_event_mgr_t p_manager)
	Sets up the procedures to do on writing header after the codestream. More...

static OPJ_BOOL	opj_jp2_setup_end_header_reading (opj_jp2_t jp2, opj_event_mgr_t p_manager)
	Sets up the procedures to do on reading header after the codestream. More...

static OPJ_BOOL	opj_jp2_read_header_procedure (opj_jp2_t jp2, opj_stream_private_t stream, opj_event_mgr_t *p_manager)
	Reads a jpeg2000 file header structure. More...

static OPJ_BOOL	opj_jp2_exec (opj_jp2_t jp2, opj_procedure_list_t p_procedure_list, opj_stream_private_t stream, opj_event_mgr_t p_manager)
	Executes the given procedures on the given codec. More...

static OPJ_BOOL	opj_jp2_read_boxhdr (opj_jp2_box_t box, OPJ_UINT32 p_number_bytes_read, opj_stream_private_t cio, opj_event_mgr_t p_manager)
	Reads a box header. More...

static OPJ_BOOL	opj_jp2_setup_encoding_validation (opj_jp2_t jp2, opj_event_mgr_t p_manager)
	Sets up the validation ,i.e. More...

static OPJ_BOOL	opj_jp2_setup_header_writing (opj_jp2_t jp2, opj_event_mgr_t p_manager)
	Sets up the procedures to do on writing header. More...

static OPJ_BOOL	opj_jp2_default_validation (opj_jp2_t jp2, opj_stream_private_t cio, opj_event_mgr_t *p_manager)

static const opj_jp2_header_handler_t *	opj_jp2_img_find_handler (OPJ_UINT32 p_id)
	Finds the image execution function related to the given box id. More...

static const opj_jp2_header_handler_t *	opj_jp2_find_handler (OPJ_UINT32 p_id)
	Finds the execution function related to the given box id. More...

static OPJ_BOOL	opj_jp2_read_boxhdr_char (opj_jp2_box_t box, OPJ_BYTE p_data, OPJ_UINT32 p_number_bytes_read, OPJ_UINT32 p_box_max_size, opj_event_mgr_t p_manager)
	Reads a box header. More...

static OPJ_BOOL	opj_jp2_setup_decoding_validation (opj_jp2_t jp2, opj_event_mgr_t p_manager)
	Sets up the validation ,i.e. More...

static OPJ_BOOL	opj_jp2_setup_header_reading (opj_jp2_t jp2, opj_event_mgr_t p_manager)
	Sets up the procedures to do on reading header. More...

static OPJ_BOOL	opj_jp2_check_color (opj_image_t image, opj_jp2_color_t color, opj_event_mgr_t *p_manager)

OPJ_BOOL	opj_jp2_decode (opj_jp2_t jp2, opj_stream_private_t p_stream, opj_image_t p_image, opj_event_mgr_t p_manager)
	Decode an image from a JPEG-2000 file stream. More...

void	opj_jp2_setup_decoder (opj_jp2_t jp2, opj_dparameters_t parameters)
	Setup the decoder decoding parameters using user parameters. More...

void	opj_jp2_decoder_set_strict_mode (opj_jp2_t *jp2, OPJ_BOOL strict)
	Set the strict mode parameter. More...

OPJ_BOOL	opj_jp2_set_threads (opj_jp2_t *jp2, OPJ_UINT32 num_threads)
	Allocates worker threads for the compressor/decompressor. More...

OPJ_BOOL	opj_jp2_setup_encoder (opj_jp2_t jp2, opj_cparameters_t parameters, opj_image_t image, opj_event_mgr_t p_manager)
	Setup the encoder parameters using the current image and using user parameters. More...

OPJ_BOOL	opj_jp2_encode (opj_jp2_t jp2, opj_stream_private_t stream, opj_event_mgr_t *p_manager)
	Encode an image into a JPEG-2000 file stream. More...

OPJ_BOOL	opj_jp2_end_decompress (opj_jp2_t jp2, opj_stream_private_t cio, opj_event_mgr_t *p_manager)
	Ends the decompression procedures and possibiliy add data to be read after the codestream. More...

OPJ_BOOL	opj_jp2_end_compress (opj_jp2_t jp2, opj_stream_private_t cio, opj_event_mgr_t *p_manager)
	Ends the compression procedures and possibiliy add data to be read after the codestream. More...

OPJ_BOOL	opj_jp2_start_compress (opj_jp2_t jp2, opj_stream_private_t stream, opj_image_t p_image, opj_event_mgr_t p_manager)
	Starts a compression scheme, i.e. More...

static OPJ_BOOL	opj_jpip_skip_iptr (opj_jp2_t jp2, opj_stream_private_t stream, opj_event_mgr_t *p_manager)

OPJ_BOOL	opj_jp2_read_header (opj_stream_private_t p_stream, opj_jp2_t jp2, opj_image_t *p_image, opj_event_mgr_t p_manager)
	Reads a jpeg2000 file header structure. More...

OPJ_BOOL	opj_jp2_read_tile_header (opj_jp2_t p_jp2, OPJ_UINT32 p_tile_index, OPJ_UINT32 p_data_size, OPJ_INT32 p_tile_x0, OPJ_INT32 p_tile_y0, OPJ_INT32 p_tile_x1, OPJ_INT32 p_tile_y1, OPJ_UINT32 p_nb_comps, OPJ_BOOL p_go_on, opj_stream_private_t p_stream, opj_event_mgr_t *p_manager)
	Reads a tile header. More...

OPJ_BOOL	opj_jp2_write_tile (opj_jp2_t p_jp2, OPJ_UINT32 p_tile_index, OPJ_BYTE p_data, OPJ_UINT32 p_data_size, opj_stream_private_t p_stream, opj_event_mgr_t p_manager)
	Writes a tile. More...

OPJ_BOOL	opj_jp2_decode_tile (opj_jp2_t p_jp2, OPJ_UINT32 p_tile_index, OPJ_BYTE p_data, OPJ_UINT32 p_data_size, opj_stream_private_t p_stream, opj_event_mgr_t p_manager)
	Decode tile data. More...

void	opj_jp2_destroy (opj_jp2_t *jp2)
	Destroy a JP2 decompressor handle. More...

OPJ_BOOL	opj_jp2_set_decoded_components (opj_jp2_t p_jp2, OPJ_UINT32 numcomps, const OPJ_UINT32 comps_indices, opj_event_mgr_t *p_manager)
	Sets the indices of the components to decode. More...

OPJ_BOOL	opj_jp2_set_decode_area (opj_jp2_t p_jp2, opj_image_t p_image, OPJ_INT32 p_start_x, OPJ_INT32 p_start_y, OPJ_INT32 p_end_x, OPJ_INT32 p_end_y, opj_event_mgr_t *p_manager)
	Sets the given area to be decoded. More...

OPJ_BOOL	opj_jp2_get_tile (opj_jp2_t p_jp2, opj_stream_private_t p_stream, opj_image_t p_image, opj_event_mgr_t p_manager, OPJ_UINT32 tile_index)

opj_jp2_t *	opj_jp2_create (OPJ_BOOL p_is_decoder)
	Creates a jpeg2000 file decompressor. More...

void	jp2_dump (opj_jp2_t p_jp2, OPJ_INT32 flag, FILE out_stream)
	Dump some elements from the JP2 decompression structure . More...

opj_codestream_index_t *	jp2_get_cstr_index (opj_jp2_t *p_jp2)
	Get the codestream index from a JPEG2000 codec. More...

opj_codestream_info_v2_t *	jp2_get_cstr_info (opj_jp2_t *p_jp2)
	Get the codestream info from a JPEG2000 codec. More...

OPJ_BOOL	opj_jp2_set_decoded_resolution_factor (opj_jp2_t p_jp2, OPJ_UINT32 res_factor, opj_event_mgr_t p_manager)

OPJ_BOOL	opj_jp2_encoder_set_extra_options (opj_jp2_t p_jp2, const char const p_options, opj_event_mgr_t p_manager)
	Specify extra options for the encoder. More...

Macro Definition Documentation

◆ OPJ_BOX_SIZE

#define OPJ_BOX_SIZE 1024

◆ OPJ_UNUSED

#define OPJ_UNUSED ( x ) (void)x

Function Documentation

◆ jp2_dump()

void jp2_dump	(	opj_jp2_t *	p_jp2,
		OPJ_INT32	flag,
		FILE *	out_stream
	)

Dump some elements from the JP2 decompression structure .

Parameters

p_jp2	the jp2 codec.
flag	flag to describe what elements are dump.
out_stream	output stream where dump the elements.

References opj_jp2::j2k, and j2k_dump().

Referenced by opj_create_decompress().

◆ jp2_get_cstr_index()

opj_codestream_index_t * jp2_get_cstr_index ( opj_jp2_t * p_jp2 )

Get the codestream index from a JPEG2000 codec.

Parameters

p_jp2 jp2 codec.

Returns: the codestream index extract from the jpg2000 codec

References opj_jp2::j2k, and j2k_get_cstr_index().

Referenced by opj_create_decompress().

◆ jp2_get_cstr_info()

opj_codestream_info_v2_t * jp2_get_cstr_info ( opj_jp2_t * p_jp2 )

Get the codestream info from a JPEG2000 codec.

Parameters

p_jp2 jp2 codec.

Returns: the codestream information extract from the jpg2000 codec

References opj_jp2::j2k, and j2k_get_cstr_info().

Referenced by opj_create_decompress().

◆ opj_jp2_apply_cdef()

static void opj_jp2_apply_cdef	(	opj_image_t *	image,
		opj_jp2_color_t *	color,
		opj_event_mgr_t *	manager
	)

static

References opj_image_comp::alpha, opj_jp2_cdef_info::asoc, opj_jp2_cdef_info::cn, opj_image::comps, EVT_WARNING, opj_jp2_cdef::info, opj_jp2_color::jp2_cdef, opj_jp2_cdef::n, opj_image::numcomps, opj_event_msg(), opj_free(), and opj_jp2_cdef_info::typ.

Referenced by opj_jp2_decode(), and opj_jp2_get_tile().

◆ opj_jp2_apply_pclr()

static OPJ_BOOL opj_jp2_apply_pclr	(	opj_image_t *	image,
		opj_jp2_color_t *	color,
		opj_event_mgr_t *	p_manager
	)

static

Apply collected palette data.

Parameters

image	Image.
color	Collector for profile, cdef and pclr data.
p_manager	the user event manager.

Returns: true in case of success

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, opj_jp2_color::jp2_pclr, max(), opj_jp2_pclr::nr_channels, opj_jp2_pclr::nr_entries, opj_image::numcomps, opj_event_msg(), OPJ_FALSE, opj_free(), opj_image_data_alloc(), opj_image_data_free(), opj_malloc(), OPJ_TRUE, opj_jp2_cmap_comp::pcol, opj_image_comp::prec, opj_image_comp::sgnd, and opj_image_comp::w.

Referenced by opj_jp2_decode(), and opj_jp2_get_tile().

◆ opj_jp2_check_color()

static OPJ_BOOL opj_jp2_check_color	(	opj_image_t *	image,
		opj_jp2_color_t *	color,
		opj_event_mgr_t *	p_manager
	)

static

References opj_jp2_pclr::cmap, EVT_ERROR, EVT_WARNING, opj_jp2_cdef::info, opj_jp2_color::jp2_cdef, opj_jp2_color::jp2_pclr, opj_jp2_cmap_comp::mtyp, 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(), and opj_jp2_get_tile().

◆ opj_jp2_create()

opj_jp2_t * opj_jp2_create ( OPJ_BOOL p_is_decoder )

Creates a jpeg2000 file decompressor.

Returns: an empty jpeg2000 file codec.

References opj_jp2::color, opj_jp2_color::icc_profile_buf, opj_jp2_color::icc_profile_len, opj_jp2::j2k, opj_jp2_color::jp2_cdef, opj_jp2_color::jp2_has_colr, opj_jp2_color::jp2_pclr, opj_jp2::m_procedure_list, opj_jp2::m_validation_list, opj_calloc(), opj_j2k_create_compress(), opj_j2k_create_decompress(), opj_jp2_destroy(), and opj_procedure_list_create().

Referenced by opj_create_compress(), and opj_create_decompress().

◆ opj_jp2_decode()

OPJ_BOOL opj_jp2_decode	(	opj_jp2_t *	jp2,
		opj_stream_private_t *	p_stream,
		opj_image_t *	p_image,
		opj_event_mgr_t *	p_manager
	)

Decode an image from a JPEG-2000 file stream.

Parameters

jp2	JP2 decompressor handle
p_stream	FIXME DOC
p_image	FIXME DOC
p_manager	FIXME DOC

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

References opj_jp2_pclr::cmap, opj_jp2::color, opj_image::color_space, opj_jp2::enumcs, EVT_ERROR, opj_jp2_color::icc_profile_buf, opj_image::icc_profile_buf, opj_jp2_color::icc_profile_len, opj_image::icc_profile_len, opj_jp2::ignore_pclr_cmap_cdef, opj_jp2::j2k, opj_jp2_color::jp2_cdef, opj_jp2_color::jp2_pclr, opj_j2k::m_decoder, opj_j2k_dec::m_numcomps_to_decode, opj_j2k::m_specific_param, OPJ_CLRSPC_CMYK, OPJ_CLRSPC_EYCC, OPJ_CLRSPC_GRAY, OPJ_CLRSPC_SRGB, OPJ_CLRSPC_SYCC, OPJ_CLRSPC_UNKNOWN, opj_event_msg(), OPJ_FALSE, opj_j2k_decode(), opj_jp2_apply_cdef(), opj_jp2_apply_pclr(), opj_jp2_check_color(), opj_jp2_free_pclr(), and OPJ_TRUE.

Referenced by opj_create_decompress().

◆ opj_jp2_decode_tile()

OPJ_BOOL opj_jp2_decode_tile	(	opj_jp2_t *	p_jp2,
		OPJ_UINT32	p_tile_index,
		OPJ_BYTE *	p_data,
		OPJ_UINT32	p_data_size,
		opj_stream_private_t *	p_stream,
		opj_event_mgr_t *	p_manager
	)

Decode tile data.

Parameters

p_jp2	the jpeg2000 codec.
p_tile_index	FIXME DOC
p_data	FIXME DOC
p_data_size	FIXME DOC
p_stream	the stream to write data to.
p_manager	the user event manager.

Returns: FIXME DOC

References opj_jp2::j2k, and opj_j2k_decode_tile().

Referenced by opj_create_decompress().

◆ opj_jp2_decoder_set_strict_mode()

void opj_jp2_decoder_set_strict_mode	(	opj_jp2_t *	jp2,
		OPJ_BOOL	strict
	)

Set the strict mode parameter.

When strict mode is enabled, the entire bitstream must be decoded or an error is returned. When it is disabled, the decoder will decode partial bitstreams.

Parameters

jp2	JP2 decompressor handle
strict	OPJ_TRUE for strict mode

References opj_jp2::j2k, and opj_j2k_decoder_set_strict_mode().

Referenced by opj_create_decompress().

◆ opj_jp2_default_validation()

static OPJ_BOOL opj_jp2_default_validation	(	opj_jp2_t *	jp2,
		opj_stream_private_t *	cio,
		opj_event_mgr_t *	p_manager
	)

static

References opj_jp2_comps::bpcc, opj_jp2::comps, opj_jp2::h, opj_jp2::j2k, opj_jp2::jp2_img_state, JP2_IMG_STATE_NONE, opj_jp2::jp2_state, JP2_STATE_NONE, opj_jp2::m_procedure_list, opj_jp2::m_validation_list, opj_jp2::meth, opj_jp2::numcl, opj_jp2::numcomps, opj_stream_has_seek(), OPJ_TRUE, OPJ_UNUSED, and opj_jp2::w.

Referenced by opj_jp2_setup_encoding_validation().

◆ opj_jp2_destroy()

void opj_jp2_destroy ( opj_jp2_t * jp2 )

Destroy a JP2 decompressor handle.

Parameters

jp2	JP2 decompressor handle to destroy

References opj_jp2_pclr::channel_sign, opj_jp2_pclr::channel_size, opj_jp2::cl, opj_jp2_pclr::cmap, opj_jp2::color, opj_jp2::comps, opj_jp2_pclr::entries, opj_jp2_color::icc_profile_buf, opj_jp2_cdef::info, opj_jp2::j2k, opj_jp2_color::jp2_cdef, opj_jp2_color::jp2_pclr, opj_jp2::m_procedure_list, opj_jp2::m_validation_list, opj_free(), opj_j2k_destroy(), and opj_procedure_list_destroy().

Referenced by opj_create_compress(), opj_create_decompress(), and opj_jp2_create().

◆ opj_jp2_encode()

OPJ_BOOL opj_jp2_encode	(	opj_jp2_t *	jp2,
		opj_stream_private_t *	stream,
		opj_event_mgr_t *	p_manager
	)

Encode an image into a JPEG-2000 file stream.

Parameters

jp2	JP2 compressor handle
stream	Output buffer stream
p_manager	event manager

Returns: Returns true if successful, returns false otherwise

References opj_jp2::j2k, and opj_j2k_encode().

Referenced by opj_create_compress().

◆ opj_jp2_encoder_set_extra_options()

OPJ_BOOL opj_jp2_encoder_set_extra_options	(	opj_jp2_t *	p_jp2,
		const char const	p_options,
		opj_event_mgr_t *	p_manager
	)

Specify extra options for the encoder.

Parameters

p_jp2	the jpeg2000 codec.
p_options	options
p_manager	the user event manager

See also: opj_encoder_set_extra_options() for more details.

References opj_jp2::j2k, and opj_j2k_encoder_set_extra_options().

Referenced by opj_create_compress().

◆ opj_jp2_end_compress()

OPJ_BOOL opj_jp2_end_compress	(	opj_jp2_t *	jp2,
		opj_stream_private_t *	cio,
		opj_event_mgr_t *	p_manager
	)

Ends the compression procedures and possibiliy add data to be read after the codestream.

References opj_jp2::j2k, opj_jp2::m_procedure_list, OPJ_FALSE, opj_j2k_end_compress(), opj_jp2_exec(), and opj_jp2_setup_end_header_writing().

Referenced by opj_create_compress().

◆ opj_jp2_end_decompress()

OPJ_BOOL opj_jp2_end_decompress	(	opj_jp2_t *	jp2,
		opj_stream_private_t *	cio,
		opj_event_mgr_t *	p_manager
	)

Ends the decompression procedures and possibiliy add data to be read after the codestream.

References opj_jp2::j2k, opj_jp2::m_procedure_list, OPJ_FALSE, opj_j2k_end_decompress(), opj_jp2_exec(), and opj_jp2_setup_end_header_reading().

Referenced by opj_create_decompress().

◆ opj_jp2_exec()

static OPJ_BOOL opj_jp2_exec	(	opj_jp2_t *	jp2,
		opj_procedure_list_t *	p_procedure_list,
		opj_stream_private_t *	stream,
		opj_event_mgr_t *	p_manager
	)

static

Executes the given procedures on the given codec.

Parameters

p_procedure_list	the list of procedures to execute
jp2	the jpeg2000 file codec to execute the procedures on.
stream	the stream to execute the procedures on.
p_manager	the user manager.

Returns: true if all the procedures were successfully executed.

References opj_procedure_list_clear(), opj_procedure_list_get_first_procedure(), opj_procedure_list_get_nb_procedures(), and OPJ_TRUE.

Referenced by opj_jp2_end_compress(), opj_jp2_end_decompress(), opj_jp2_read_header(), and opj_jp2_start_compress().

◆ opj_jp2_find_handler()

static const opj_jp2_header_handler_t * opj_jp2_find_handler ( OPJ_UINT32 p_id )

static

Finds the execution function related to the given box id.

Parameters

p_id	the id of the handler to fetch.

Returns: the given handler or NULL if it could not be found.

References jp2_header.

Referenced by opj_jp2_read_header_procedure().

◆ opj_jp2_free_pclr()

static void opj_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 opj_jp2_decode(), and opj_jp2_get_tile().

◆ opj_jp2_get_tile()

OPJ_BOOL opj_jp2_get_tile	(	opj_jp2_t *	p_jp2,
		opj_stream_private_t *	p_stream,
		opj_image_t *	p_image,
		opj_event_mgr_t *	p_manager,
		OPJ_UINT32	tile_index
	)

◆ opj_jp2_img_find_handler()

static const opj_jp2_header_handler_t * opj_jp2_img_find_handler ( OPJ_UINT32 p_id )

static

Finds the image execution function related to the given box id.

Parameters

p_id	the id of the handler to fetch.

Returns: the given handler or NULL if it could not be found.

Parameters

p_id	the id of the handler to fetch.

Returns: the given handler or 00 if it could not be found.

References jp2_img_header.

Referenced by opj_jp2_read_header_procedure(), and opj_jp2_read_jp2h().

◆ opj_jp2_read_boxhdr()

static OPJ_BOOL opj_jp2_read_boxhdr	(	opj_jp2_box_t *	box,
		OPJ_UINT32 *	p_number_bytes_read,
		opj_stream_private_t *	cio,
		opj_event_mgr_t *	p_manager
	)

static

Reads a box header.

The box is the way data is packed inside a jpeg2000 file structure.

Parameters

cio	the input stream to read data from.
box	the box structure to fill.
p_number_bytes_read	pointer to an int that will store the number of bytes read from the stream (shoul usually be 2).
p_manager	user event manager.

Returns: true if the box is recognized, false otherwise

References EVT_ERROR, opj_jp2_box::length, opj_event_msg(), OPJ_FALSE, opj_read_bytes, opj_stream_get_number_byte_left(), opj_stream_read_data(), OPJ_TRUE, and opj_jp2_box::type.

Referenced by opj_jp2_read_header_procedure().

◆ opj_jp2_read_boxhdr_char()

static OPJ_BOOL opj_jp2_read_boxhdr_char	(	opj_jp2_box_t *	box,
		OPJ_BYTE *	p_data,
		OPJ_UINT32 *	p_number_bytes_read,
		OPJ_UINT32	p_box_max_size,
		opj_event_mgr_t *	p_manager
	)

static

Reads a box header.

The box is the way data is packed inside a jpeg2000 file structure. Data is read from a character string

Parameters

box	the box structure to fill.
p_data	the character string to read data from.
p_number_bytes_read	pointer to an int that will store the number of bytes read from the stream (shoul usually be 2).
p_box_max_size	the maximum number of bytes in the box.
p_manager	FIXME DOC

Returns: true if the box is recognized, false otherwise

References EVT_ERROR, opj_jp2_box::length, opj_event_msg(), OPJ_FALSE, opj_read_bytes, OPJ_TRUE, and opj_jp2_box::type.

Referenced by opj_jp2_read_jp2h().

◆ opj_jp2_read_bpcc()

static OPJ_BOOL opj_jp2_read_bpcc	(	opj_jp2_t *	jp2,
		OPJ_BYTE *	p_bpc_header_data,
		OPJ_UINT32	p_bpc_header_size,
		opj_event_mgr_t *	p_manager
	)

static

Reads a Bit per Component box.

Parameters

p_bpc_header_data	pointer to actual data (already read from file)
jp2	the jpeg2000 file codec.
p_bpc_header_size	the size of the bpc header
p_manager	the user event manager.

Returns: true if the bpc header is valid, false else.

References opj_jp2::bpc, opj_jp2_comps::bpcc, opj_jp2::comps, EVT_ERROR, EVT_WARNING, opj_jp2::numcomps, opj_event_msg(), OPJ_FALSE, opj_read_bytes, and OPJ_TRUE.

◆ opj_jp2_read_cdef()

static OPJ_BOOL opj_jp2_read_cdef	(	opj_jp2_t *	jp2,
		OPJ_BYTE *	p_cdef_header_data,
		OPJ_UINT32	p_cdef_header_size,
		opj_event_mgr_t *	p_manager
	)

static

References opj_jp2_cdef_info::asoc, opj_jp2_cdef_info::cn, opj_jp2::color, EVT_ERROR, opj_jp2_cdef::info, opj_jp2_color::jp2_cdef, opj_jp2_cdef::n, opj_event_msg(), OPJ_FALSE, opj_free(), opj_malloc(), opj_read_bytes, OPJ_TRUE, and opj_jp2_cdef_info::typ.

◆ opj_jp2_read_cmap()

static OPJ_BOOL opj_jp2_read_cmap	(	opj_jp2_t *	jp2,
		OPJ_BYTE *	p_cmap_header_data,
		OPJ_UINT32	p_cmap_header_size,
		opj_event_mgr_t *	p_manager
	)

static

Collect component mapping data.

Parameters

jp2	JP2 handle
p_cmap_header_data	FIXME DOC
p_cmap_header_size	FIXME DOC
p_manager	FIXME DOC

Returns: Returns true if successful, returns false otherwise

References opj_jp2_pclr::cmap, opj_jp2_cmap_comp::cmp, opj_jp2::color, EVT_ERROR, opj_jp2_color::jp2_pclr, opj_jp2_cmap_comp::mtyp, opj_jp2_pclr::nr_channels, opj_event_msg(), OPJ_FALSE, opj_malloc(), opj_read_bytes, OPJ_TRUE, and opj_jp2_cmap_comp::pcol.

◆ opj_jp2_read_colr()

static OPJ_BOOL opj_jp2_read_colr	(	opj_jp2_t *	jp2,
		OPJ_BYTE *	p_colr_header_data,
		OPJ_UINT32	p_colr_header_size,
		opj_event_mgr_t *	p_manager
	)

static

Reads the Color Specification box.

Parameters

p_colr_header_data	pointer to actual data (already read from file)
jp2	the jpeg2000 file codec.
p_colr_header_size	the size of the color header
p_manager	the user event manager.

Returns: true if the bpc header is valid, false else.

References opj_jp2::approx, opj_jp2::color, opj_jp2::enumcs, EVT_ERROR, EVT_INFO, EVT_WARNING, opj_jp2_color::icc_profile_buf, opj_jp2_color::icc_profile_len, opj_jp2_color::jp2_has_colr, opj_jp2::meth, opj_calloc(), opj_event_msg(), OPJ_FALSE, opj_malloc(), opj_read_bytes, OPJ_TRUE, and opj_jp2::precedence.

◆ opj_jp2_read_ftyp()

static OPJ_BOOL opj_jp2_read_ftyp	(	opj_jp2_t *	jp2,
		OPJ_BYTE *	p_header_data,
		OPJ_UINT32	p_header_size,
		opj_event_mgr_t *	p_manager
	)

static

Reads a a FTYP box - File type box.

Parameters

p_header_data	the data contained in the FTYP box.
jp2	the jpeg2000 file codec.
p_header_size	the size of the data contained in the FTYP box.
p_manager	the user event manager.

Returns: true if the FTYP box is valid.

References opj_jp2::brand, opj_jp2::cl, EVT_ERROR, opj_jp2::jp2_state, JP2_STATE_FILE_TYPE, JP2_STATE_SIGNATURE, opj_jp2::minversion, opj_jp2::numcl, opj_calloc(), opj_event_msg(), OPJ_FALSE, opj_read_bytes, and OPJ_TRUE.

◆ opj_jp2_read_header()

OPJ_BOOL opj_jp2_read_header	(	opj_stream_private_t *	p_stream,
		opj_jp2_t *	jp2,
		opj_image_t **	p_image,
		opj_event_mgr_t *	p_manager
	)

Reads a jpeg2000 file header structure.

Parameters

p_stream	the stream to read data from.
jp2	the jpeg2000 file header structure.
p_image	FIXME DOC
p_manager	the user event manager.

Returns: true if the box is valid.

References EVT_ERROR, opj_jp2::has_ihdr, opj_jp2::has_jp2h, opj_jp2::j2k, opj_jp2::m_procedure_list, opj_jp2::m_validation_list, opj_event_msg(), OPJ_FALSE, opj_j2k_read_header(), opj_jp2_exec(), opj_jp2_setup_decoding_validation(), and opj_jp2_setup_header_reading().

Referenced by opj_create_decompress().

◆ opj_jp2_read_header_procedure()

static OPJ_BOOL opj_jp2_read_header_procedure	(	opj_jp2_t *	jp2,
		opj_stream_private_t *	stream,
		opj_event_mgr_t *	p_manager
	)

static

Reads a jpeg2000 file header structure.

Parameters

jp2	the jpeg2000 file header structure.
stream	the stream to read data from.
p_manager	the user event manager.

Returns: true if the box is valid.

References EVT_ERROR, EVT_WARNING, opj_jp2_header_handler::handler, JP2_JP2C, opj_jp2::jp2_state, JP2_STATE_CODESTREAM, JP2_STATE_FILE_TYPE, JP2_STATE_HEADER, JP2_STATE_SIGNATURE, JP2_STATE_UNKNOWN, opj_jp2_box::length, OPJ_BOX_SIZE, opj_calloc(), opj_event_msg(), OPJ_FALSE, opj_free(), opj_jp2_find_handler(), opj_jp2_img_find_handler(), opj_jp2_read_boxhdr(), opj_realloc(), opj_stream_get_number_byte_left(), opj_stream_read_data(), opj_stream_skip(), OPJ_TRUE, and opj_jp2_box::type.

Referenced by opj_jp2_setup_end_header_reading(), and opj_jp2_setup_header_reading().

◆ opj_jp2_read_ihdr()

static OPJ_BOOL opj_jp2_read_ihdr	(	opj_jp2_t *	jp2,
		OPJ_BYTE *	p_image_header_data,
		OPJ_UINT32	p_image_header_size,
		opj_event_mgr_t *	p_manager
	)

static

Reads a IHDR box - Image Header box.

Parameters

p_image_header_data	pointer to actual data (already read from file)
jp2	the jpeg2000 file codec.
p_image_header_size	the size of the image header
p_manager	the user event manager.

Returns: true if the image header is valid, false else.

References opj_cp::allow_different_bit_depth_sign, opj_jp2::bpc, opj_jp2::C, opj_jp2::comps, EVT_ERROR, EVT_INFO, EVT_WARNING, opj_jp2::h, opj_jp2::has_ihdr, opj_j2k::ihdr_h, opj_j2k::ihdr_w, opj_jp2::IPR, opj_jp2::j2k, opj_j2k::m_cp, opj_jp2::numcomps, opj_calloc(), opj_event_msg(), OPJ_FALSE, opj_read_bytes, OPJ_TRUE, opj_jp2::UnkC, and opj_jp2::w.

◆ opj_jp2_read_jp()

static OPJ_BOOL opj_jp2_read_jp	(	opj_jp2_t *	jp2,
		OPJ_BYTE *	p_header_data,
		OPJ_UINT32	p_header_size,
		opj_event_mgr_t *	p_manager
	)

static

Reads a jpeg2000 file signature box.

Parameters

p_header_data	the data contained in the signature box.
jp2	the jpeg2000 file codec.
p_header_size	the size of the data contained in the signature box.
p_manager	the user event manager.

Returns: true if the file signature box is valid.

References EVT_ERROR, opj_jp2::jp2_state, JP2_STATE_NONE, JP2_STATE_SIGNATURE, opj_event_msg(), OPJ_FALSE, opj_read_bytes, and OPJ_TRUE.

◆ opj_jp2_read_jp2h()

static OPJ_BOOL opj_jp2_read_jp2h	(	opj_jp2_t *	jp2,
		OPJ_BYTE *	p_header_data,
		OPJ_UINT32	p_header_size,
		opj_event_mgr_t *	p_manager
	)

static

Reads the Jpeg2000 file Header box - JP2 Header box (warning, this is a super box).

Parameters

p_header_data	the data contained in the file header box.
jp2	the jpeg2000 file codec.
p_header_size	the size of the data contained in the file header box.
p_manager	the user event manager.

Returns: true if the JP2 Header box was successfully recognized.

References EVT_ERROR, opj_jp2_header_handler::handler, opj_jp2::has_jp2h, JP2_IHDR, opj_jp2::jp2_img_state, JP2_IMG_STATE_NONE, JP2_IMG_STATE_UNKNOWN, opj_jp2::jp2_state, JP2_STATE_FILE_TYPE, JP2_STATE_HEADER, opj_jp2_box::length, opj_event_msg(), OPJ_FALSE, opj_jp2_img_find_handler(), opj_jp2_read_boxhdr_char(), OPJ_TRUE, and opj_jp2_box::type.

◆ opj_jp2_read_pclr()

static OPJ_BOOL opj_jp2_read_pclr	(	opj_jp2_t *	jp2,
		OPJ_BYTE *	p_pclr_header_data,
		OPJ_UINT32	p_pclr_header_size,
		opj_event_mgr_t *	p_manager
	)

static

Collect palette data.

Parameters

jp2	JP2 handle
p_pclr_header_data	FIXME DOC
p_pclr_header_size	FIXME DOC
p_manager

Returns: Returns true if successful, returns false otherwise

References opj_jp2_pclr::channel_sign, opj_jp2_pclr::channel_size, opj_jp2_pclr::cmap, opj_jp2::color, opj_jp2_pclr::entries, EVT_ERROR, opj_jp2_color::jp2_pclr, opj_jp2_pclr::nr_channels, opj_jp2_pclr::nr_entries, opj_event_msg(), OPJ_FALSE, opj_free(), opj_malloc(), opj_read_bytes, and OPJ_TRUE.

◆ opj_jp2_read_tile_header()

OPJ_BOOL opj_jp2_read_tile_header	(	opj_jp2_t *	p_jp2,
		OPJ_UINT32 *	p_tile_index,
		OPJ_UINT32 *	p_data_size,
		OPJ_INT32 *	p_tile_x0,
		OPJ_INT32 *	p_tile_y0,
		OPJ_INT32 *	p_tile_x1,
		OPJ_INT32 *	p_tile_y1,
		OPJ_UINT32 *	p_nb_comps,
		OPJ_BOOL *	p_go_on,
		opj_stream_private_t *	p_stream,
		opj_event_mgr_t *	p_manager
	)

Reads a tile header.

Parameters

p_jp2	the jpeg2000 codec.
p_tile_index	FIXME DOC
p_data_size	FIXME DOC
p_tile_x0	FIXME DOC
p_tile_y0	FIXME DOC
p_tile_x1	FIXME DOC
p_tile_y1	FIXME DOC
p_nb_comps	FIXME DOC
p_go_on	FIXME DOC
p_stream	the stream to write data to.
p_manager	the user event manager.

References opj_jp2::j2k, and opj_j2k_read_tile_header().

Referenced by opj_create_decompress().

◆ opj_jp2_set_decode_area()

OPJ_BOOL opj_jp2_set_decode_area	(	opj_jp2_t *	p_jp2,
		opj_image_t *	p_image,
		OPJ_INT32	p_start_x,
		OPJ_INT32	p_start_y,
		OPJ_INT32	p_end_x,
		OPJ_INT32	p_end_y,
		opj_event_mgr_t *	p_manager
	)

Sets the given area to be decoded.

This function should be called right after opj_read_header and before any tile header reading.

Parameters

p_jp2	the jpeg2000 codec.
p_image	FIXME DOC
p_start_x	the left position of the rectangle to decode (in image coordinates).
p_start_y	the up position of the rectangle to decode (in image coordinates).
p_end_x	the right position of the rectangle to decode (in image coordinates).
p_end_y	the bottom position of the rectangle to decode (in image coordinates).
p_manager	the user event manager

Returns: true if the area could be set.

References opj_jp2::j2k, and opj_j2k_set_decode_area().

Referenced by opj_create_decompress().

◆ opj_jp2_set_decoded_components()

OPJ_BOOL opj_jp2_set_decoded_components	(	opj_jp2_t *	jp2,
		OPJ_UINT32	numcomps,
		const OPJ_UINT32 *	comps_indices,
		opj_event_mgr_t *	p_manager
	)

Sets the indices of the components to decode.

Parameters

jp2	JP2 decompressor handle
numcomps	Number of components to decode.
comps_indices	Array of num_compts indices (numbering starting at 0) corresponding to the components to decode.
p_manager	Event manager;

Returns: OPJ_TRUE in case of success.

References opj_jp2::j2k, and opj_j2k_set_decoded_components().

Referenced by opj_create_decompress().

◆ opj_jp2_set_decoded_resolution_factor()

OPJ_BOOL opj_jp2_set_decoded_resolution_factor	(	opj_jp2_t *	p_jp2,
		OPJ_UINT32	res_factor,
		opj_event_mgr_t *	p_manager
	)

References opj_jp2::j2k, and opj_j2k_set_decoded_resolution_factor().

Referenced by opj_create_decompress().

◆ opj_jp2_set_threads()

OPJ_BOOL opj_jp2_set_threads	(	opj_jp2_t *	jp2,
		OPJ_UINT32	num_threads
	)

Allocates worker threads for the compressor/decompressor.

Parameters

jp2	JP2 decompressor handle
num_threads	Number of threads.

Returns: OPJ_TRUE in case of success.

References opj_jp2::j2k, and opj_j2k_set_threads().

Referenced by opj_create_compress(), and opj_create_decompress().

◆ opj_jp2_setup_decoder()

void opj_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_jp2::color, opj_dparameters::flags, opj_jp2::ignore_pclr_cmap_cdef, opj_jp2::j2k, opj_jp2_color::jp2_has_colr, OPJ_DPARAMETERS_IGNORE_PCLR_CMAP_CDEF_FLAG, and opj_j2k_setup_decoder().

Referenced by opj_create_decompress().

◆ opj_jp2_setup_decoding_validation()

static OPJ_BOOL opj_jp2_setup_decoding_validation	(	opj_jp2_t *	jp2,
		opj_event_mgr_t *	p_manager
	)

static

Sets up the validation ,i.e.

adds the procedures to launch to make sure the codec parameters are valid. Developers wanting to extend the library can add their own validation procedures.

References OPJ_TRUE, and OPJ_UNUSED.

Referenced by opj_jp2_read_header().

◆ opj_jp2_setup_encoder()

OPJ_BOOL opj_jp2_setup_encoder	(	opj_jp2_t *	jp2,
		opj_cparameters_t *	parameters,
		opj_image_t *	image,
		opj_event_mgr_t *	p_manager
	)

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
p_manager	FIXME DOC

Returns: OPJ_TRUE if successful, OPJ_FALSE otherwise

References opj_image_comp::alpha, opj_jp2::approx, opj_jp2_cdef_info::asoc, opj_jp2::bpc, opj_jp2_comps::bpcc, opj_jp2::brand, opj_jp2::C, opj_jp2::cl, opj_jp2_cdef_info::cn, opj_jp2::color, opj_image::color_space, opj_jp2::comps, opj_image::comps, opj_jp2::enumcs, EVT_ERROR, EVT_WARNING, opj_jp2::h, opj_image::icc_profile_len, opj_jp2_cdef::info, opj_jp2::IPR, opj_jp2::j2k, opj_jp2_color::jp2_cdef, JP2_JP2, opj_jp2::jpip_on, opj_cparameters::jpip_on, opj_jp2::meth, opj_jp2::minversion, opj_jp2_cdef::n, opj_jp2::numcl, opj_jp2::numcomps, opj_image::numcomps, opj_event_msg(), OPJ_FALSE, opj_j2k_setup_encoder(), opj_malloc(), OPJ_TRUE, opj_image_comp::prec, opj_jp2::precedence, opj_image_comp::sgnd, opj_jp2_cdef_info::typ, opj_jp2::UnkC, opj_jp2::w, opj_image::x0, opj_image::x1, opj_image::y0, and opj_image::y1.

Referenced by opj_create_compress().

◆ opj_jp2_setup_encoding_validation()

static OPJ_BOOL opj_jp2_setup_encoding_validation	(	opj_jp2_t *	jp2,
		opj_event_mgr_t *	p_manager
	)

static

Sets up the validation ,i.e.

adds the procedures to launch to make sure the codec parameters are valid. Developers wanting to extend the library can add their own validation procedures.

References opj_jp2::m_validation_list, OPJ_FALSE, opj_jp2_default_validation(), opj_procedure_list_add_procedure(), and OPJ_TRUE.

Referenced by opj_jp2_start_compress().

◆ opj_jp2_setup_end_header_reading()

static OPJ_BOOL opj_jp2_setup_end_header_reading	(	opj_jp2_t *	jp2,
		opj_event_mgr_t *	p_manager
	)

static

Sets up the procedures to do on reading header after the codestream.

Developers wanting to extend the library can add their own writing procedures.

References opj_jp2::m_procedure_list, OPJ_FALSE, opj_jp2_read_header_procedure(), opj_procedure_list_add_procedure(), and OPJ_TRUE.

Referenced by opj_jp2_end_decompress().

◆ opj_jp2_setup_end_header_writing()

static OPJ_BOOL opj_jp2_setup_end_header_writing	(	opj_jp2_t *	jp2,
		opj_event_mgr_t *	p_manager
	)

static

Sets up the procedures to do on writing header after the codestream.

Developers wanting to extend the library can add their own writing procedures.

References opj_jp2::jpip_on, opj_jp2::m_procedure_list, OPJ_FALSE, opj_jp2_write_jp2c(), opj_procedure_list_add_procedure(), and OPJ_TRUE.

Referenced by opj_jp2_end_compress().

◆ opj_jp2_setup_header_reading()

static OPJ_BOOL opj_jp2_setup_header_reading	(	opj_jp2_t *	jp2,
		opj_event_mgr_t *	p_manager
	)

static

Sets up the procedures to do on reading header.

Developers wanting to extend the library can add their own writing procedures.

References opj_jp2::m_procedure_list, OPJ_FALSE, opj_jp2_read_header_procedure(), opj_procedure_list_add_procedure(), and OPJ_TRUE.

Referenced by opj_jp2_read_header().

◆ opj_jp2_setup_header_writing()

static OPJ_BOOL opj_jp2_setup_header_writing	(	opj_jp2_t *	jp2,
		opj_event_mgr_t *	p_manager
	)

static

Sets up the procedures to do on writing header.

Developers wanting to extend the library can add their own writing procedures.

References opj_jp2::jpip_on, opj_jp2::m_procedure_list, OPJ_FALSE, opj_jp2_skip_jp2c(), opj_jp2_write_ftyp(), opj_jp2_write_jp(), opj_jp2_write_jp2h(), opj_jpip_skip_iptr(), opj_procedure_list_add_procedure(), and OPJ_TRUE.

Referenced by opj_jp2_start_compress().

◆ opj_jp2_skip_jp2c()

static OPJ_BOOL opj_jp2_skip_jp2c	(	opj_jp2_t *	jp2,
		opj_stream_private_t *	stream,
		opj_event_mgr_t *	p_manager
	)

static

References opj_jp2::j2k_codestream_offset, OPJ_FALSE, opj_stream_skip(), opj_stream_tell(), and OPJ_TRUE.

Referenced by opj_jp2_setup_header_writing().

◆ opj_jp2_start_compress()

OPJ_BOOL opj_jp2_start_compress	(	opj_jp2_t *	jp2,
		opj_stream_private_t *	stream,
		opj_image_t *	p_image,
		opj_event_mgr_t *	p_manager
	)

Starts a compression scheme, i.e.

validates the codec parameters, writes the header.

Parameters

jp2	the jpeg2000 file codec.
stream	the stream object.
p_image	FIXME DOC
p_manager	FIXME DOC

Returns: true if the codec is valid.

References opj_jp2::j2k, opj_jp2::m_procedure_list, opj_jp2::m_validation_list, OPJ_FALSE, opj_j2k_start_compress(), opj_jp2_exec(), opj_jp2_setup_encoding_validation(), and opj_jp2_setup_header_writing().

Referenced by opj_create_compress().

◆ opj_jp2_write_bpcc()

static OPJ_BYTE * opj_jp2_write_bpcc	(	opj_jp2_t *	jp2,
		OPJ_UINT32 *	p_nb_bytes_written
	)

static

Writes the Bit per Component box.

Parameters

jp2	jpeg2000 file codec.
p_nb_bytes_written	pointer to store the nb of bytes written by the function.

Returns: the data being copied.

References opj_jp2_comps::bpcc, opj_jp2::comps, JP2_BPCC, opj_jp2::numcomps, opj_calloc(), and opj_write_bytes.

Referenced by opj_jp2_write_jp2h().

◆ opj_jp2_write_cdef()

static OPJ_BYTE * opj_jp2_write_cdef	(	opj_jp2_t *	jp2,
		OPJ_UINT32 *	p_nb_bytes_written
	)

static

Writes the Channel Definition box.

Parameters

jp2	jpeg2000 file codec.
p_nb_bytes_written	pointer to store the nb of bytes written by the function.

Returns: the data being copied.

References opj_jp2_cdef_info::asoc, opj_jp2_cdef_info::cn, opj_jp2::color, opj_jp2_cdef::info, JP2_CDEF, opj_jp2_color::jp2_cdef, opj_jp2_cdef::n, opj_malloc(), opj_write_bytes, and opj_jp2_cdef_info::typ.

Referenced by opj_jp2_write_jp2h().

◆ opj_jp2_write_colr()

static OPJ_BYTE * opj_jp2_write_colr	(	opj_jp2_t *	jp2,
		OPJ_UINT32 *	p_nb_bytes_written
	)

static

Writes the Colour Specification box.

Parameters

jp2	jpeg2000 file codec.
p_nb_bytes_written	pointer to store the nb of bytes written by the function.

Returns: the data being copied.

References opj_jp2::approx, opj_jp2::color, opj_jp2::enumcs, opj_jp2_color::icc_profile_buf, opj_jp2_color::icc_profile_len, JP2_COLR, opj_jp2::meth, opj_calloc(), opj_write_bytes, and opj_jp2::precedence.

Referenced by opj_jp2_write_jp2h().

◆ opj_jp2_write_ftyp()

static OPJ_BOOL opj_jp2_write_ftyp	(	opj_jp2_t *	jp2,
		opj_stream_private_t *	cio,
		opj_event_mgr_t *	p_manager
	)

static

Writes a FTYP box - File type box.

Parameters

cio	the stream to write data to.
jp2	the jpeg2000 file codec.
p_manager	the user event manager.

Returns: true if writing was successful.

References opj_jp2::brand, opj_jp2::cl, EVT_ERROR, JP2_FTYP, opj_jp2::minversion, opj_jp2::numcl, opj_calloc(), opj_event_msg(), OPJ_FALSE, opj_free(), opj_stream_write_data(), and opj_write_bytes.

Referenced by opj_jp2_setup_header_writing().

◆ opj_jp2_write_ihdr()

static OPJ_BYTE * opj_jp2_write_ihdr	(	opj_jp2_t *	jp2,
		OPJ_UINT32 *	p_nb_bytes_written
	)

static

Writes the Image Header box - Image Header box.

Parameters

jp2	jpeg2000 file codec.
p_nb_bytes_written	pointer to store the nb of bytes written by the function.

Returns: the data being copied.

References opj_jp2::bpc, opj_jp2::C, opj_jp2::h, opj_jp2::IPR, JP2_IHDR, opj_jp2::numcomps, opj_calloc(), opj_write_bytes, opj_jp2::UnkC, and opj_jp2::w.

Referenced by opj_jp2_write_jp2h().

◆ opj_jp2_write_jp()

static OPJ_BOOL opj_jp2_write_jp	(	opj_jp2_t *	jp2,
		opj_stream_private_t *	cio,
		opj_event_mgr_t *	p_manager
	)

static

Writes a jpeg2000 file signature box.

Parameters

cio	the stream to write data to.
jp2	the jpeg2000 file codec.
p_manager	the user event manager.

Returns: true if writing was successful.

References JP2_JP, OPJ_FALSE, opj_stream_write_data(), OPJ_TRUE, OPJ_UNUSED, and opj_write_bytes.

Referenced by opj_jp2_setup_header_writing().

◆ opj_jp2_write_jp2c()

static OPJ_BOOL opj_jp2_write_jp2c	(	opj_jp2_t *	jp2,
		opj_stream_private_t *	cio,
		opj_event_mgr_t *	p_manager
	)

static

Writes the Jpeg2000 codestream Header box - JP2C Header box.

This function must be called AFTER the coding has been done.

Parameters

cio	the stream to write data to.
jp2	the jpeg2000 file codec.
p_manager	user event manager.

Returns: true if writing was successful.

References EVT_ERROR, opj_jp2::j2k_codestream_offset, JP2_JP2C, opj_event_msg(), OPJ_FALSE, opj_stream_has_seek(), opj_stream_seek(), opj_stream_tell(), opj_stream_write_data(), OPJ_TRUE, and opj_write_bytes.

Referenced by opj_jp2_setup_end_header_writing().

◆ opj_jp2_write_jp2h()

static OPJ_BOOL opj_jp2_write_jp2h	(	opj_jp2_t *	jp2,
		opj_stream_private_t *	stream,
		opj_event_mgr_t *	p_manager
	)

static

Writes the Jpeg2000 file Header box - JP2 Header box (warning, this is a super box).

Parameters

jp2	the jpeg2000 file codec.
stream	the stream to write data to.
p_manager	user event manager.

Returns: true if writing was successful.

References opj_jp2::bpc, opj_jp2::color, EVT_ERROR, opj_jp2_img_header_writer_handler::handler, opj_jp2_color::jp2_cdef, JP2_JP2H, opj_jp2_img_header_writer_handler::m_data, opj_jp2_img_header_writer_handler::m_size, opj_event_msg(), OPJ_FALSE, opj_free(), opj_jp2_write_bpcc(), opj_jp2_write_cdef(), opj_jp2_write_colr(), opj_jp2_write_ihdr(), opj_stream_write_data(), OPJ_TRUE, and opj_write_bytes.

Referenced by opj_jp2_setup_header_writing().

◆ opj_jp2_write_tile()

OPJ_BOOL opj_jp2_write_tile	(	opj_jp2_t *	p_jp2,
		OPJ_UINT32	p_tile_index,
		OPJ_BYTE *	p_data,
		OPJ_UINT32	p_data_size,
		opj_stream_private_t *	p_stream,
		opj_event_mgr_t *	p_manager
	)

Writes a tile.

Parameters

p_jp2	the jpeg2000 codec.
p_tile_index	FIXME DOC
p_data	FIXME DOC
p_data_size	FIXME DOC
p_stream	the stream to write data to.
p_manager	the user event manager.

References opj_jp2::j2k, and opj_j2k_write_tile().

Referenced by opj_create_compress().

◆ opj_jpip_skip_iptr()

static OPJ_BOOL opj_jpip_skip_iptr	(	opj_jp2_t *	jp2,
		opj_stream_private_t *	stream,
		opj_event_mgr_t *	p_manager
	)

static

References opj_jp2::jpip_iptr_offset, OPJ_FALSE, opj_stream_skip(), opj_stream_tell(), and OPJ_TRUE.

Referenced by opj_jp2_setup_header_writing().

Variable Documentation

◆ jp2_header

const opj_jp2_header_handler_t jp2_header[]

static

Initial value:

= {
    {JP2_JP, opj_jp2_read_jp},
    {JP2_FTYP, opj_jp2_read_ftyp},
    {JP2_JP2H, opj_jp2_read_jp2h}
}

Referenced by opj_jp2_find_handler().

◆ jp2_img_header

const opj_jp2_header_handler_t jp2_img_header[]

static

Initial value:

= {
    {JP2_IHDR, opj_jp2_read_ihdr},
    {JP2_COLR, opj_jp2_read_colr},
    {JP2_BPCC, opj_jp2_read_bpcc},
    {JP2_PCLR, opj_jp2_read_pclr},
    {JP2_CMAP, opj_jp2_read_cmap},
    {JP2_CDEF, opj_jp2_read_cdef}
 
}

Referenced by opj_jp2_img_find_handler().

Macros

Local static functions

Macro Definition Documentation

◆ OPJ_BOX_SIZE

◆ OPJ_UNUSED

Function Documentation

◆ jp2_dump()

◆ jp2_get_cstr_index()

◆ jp2_get_cstr_info()

◆ opj_jp2_apply_cdef()

◆ opj_jp2_apply_pclr()

◆ opj_jp2_check_color()

◆ opj_jp2_create()

◆ opj_jp2_decode()

◆ opj_jp2_decode_tile()

◆ opj_jp2_decoder_set_strict_mode()

◆ opj_jp2_default_validation()

◆ opj_jp2_destroy()

◆ opj_jp2_encode()

◆ opj_jp2_encoder_set_extra_options()

◆ opj_jp2_end_compress()

◆ opj_jp2_end_decompress()

◆ opj_jp2_exec()

◆ opj_jp2_find_handler()

◆ opj_jp2_free_pclr()

◆ opj_jp2_get_tile()

◆ opj_jp2_img_find_handler()

◆ opj_jp2_read_boxhdr()

◆ opj_jp2_read_boxhdr_char()

◆ opj_jp2_read_bpcc()

◆ opj_jp2_read_cdef()

◆ opj_jp2_read_cmap()

◆ opj_jp2_read_colr()

◆ opj_jp2_read_ftyp()

◆ opj_jp2_read_header()

◆ opj_jp2_read_header_procedure()

◆ opj_jp2_read_ihdr()

◆ opj_jp2_read_jp()

◆ opj_jp2_read_jp2h()

◆ opj_jp2_read_pclr()

◆ opj_jp2_read_tile_header()

◆ opj_jp2_set_decode_area()

◆ opj_jp2_set_decoded_components()

◆ opj_jp2_set_decoded_resolution_factor()

◆ opj_jp2_set_threads()

◆ opj_jp2_setup_decoder()

◆ opj_jp2_setup_decoding_validation()

◆ opj_jp2_setup_encoder()

◆ opj_jp2_setup_encoding_validation()

◆ opj_jp2_setup_end_header_reading()

◆ opj_jp2_setup_end_header_writing()

◆ opj_jp2_setup_header_reading()

◆ opj_jp2_setup_header_writing()

◆ opj_jp2_skip_jp2c()

◆ opj_jp2_start_compress()

◆ opj_jp2_write_bpcc()

◆ opj_jp2_write_cdef()

◆ opj_jp2_write_colr()

◆ opj_jp2_write_ftyp()

◆ opj_jp2_write_ihdr()

◆ opj_jp2_write_jp()

◆ opj_jp2_write_jp2c()

◆ opj_jp2_write_jp2h()

◆ opj_jp2_write_tile()

◆ opj_jpip_skip_iptr()

Variable Documentation

◆ jp2_header

◆ jp2_img_header