#include "opj_includes.h"

Macros
#define	OPJ_BOX_SIZE 1024

Functions
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)
	Excutes 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...

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_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)

Local static functions
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 cio, 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 void	opj_jp2_apply_pclr (opj_image_t image, opj_jp2_color_t color)
	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...

Variables
static const opj_jp2_header_handler_t	jp2_header []

static const opj_jp2_header_handler_t	jp2_img_header []

Function Documentation

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().

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, and opj_jp2::w.

Referenced by opj_jp2_setup_encoding_validation().

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

Excutes 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().

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().

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().

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().

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().

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().

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 lauch to make sure the codec parameters are valid. Developpers wanting to extend the library can add their own validation procedures.

References OPJ_TRUE.

Referenced by opj_jp2_read_header().

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 lauch to make sure the codec parameters are valid. Developpers 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().

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.

Developpers 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().

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.

Developpers 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().

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.

Developpers 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().

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.

Developpers 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().

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

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().

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

Functions

Variables

Function Documentation

Variable Documentation