OpenJPEG 1.5.1
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The JPEG-2000 file format Reader/Writer (JP2) More...
Go to the source code of this file.
Data Structures | |
struct | opj_jp2_cdef_info |
Channel description: channel index, type, assocation. More... | |
struct | opj_jp2_cdef |
Channel descriptions and number of descriptions. More... | |
struct | opj_jp2_cmap_comp |
Component mappings: channel index, mapping type, palette index. More... | |
struct | opj_jp2_pclr |
Palette data: table entries, palette columns. More... | |
struct | opj_jp2_color |
Collector for ICC profile, palette, component mapping, channel description. More... | |
struct | opj_jp2_comps |
JP2 component. More... | |
struct | opj_jp2 |
JPEG-2000 file format reader/writer. More... | |
struct | opj_jp2_box |
JP2 Box. More... | |
Macros | |
#define | JPIP_JPIP 0x6a706970 |
#define | JP2_JP 0x6a502020 |
JPEG 2000 signature box. | |
#define | JP2_FTYP 0x66747970 |
File type box. | |
#define | JP2_JP2H 0x6a703268 |
JP2 header box. | |
#define | JP2_IHDR 0x69686472 |
Image header box. | |
#define | JP2_COLR 0x636f6c72 |
Colour specification box. | |
#define | JP2_JP2C 0x6a703263 |
Contiguous codestream box. | |
#define | JP2_URL 0x75726c20 |
URL box. | |
#define | JP2_DTBL 0x6474626c |
Data Reference box. | |
#define | JP2_BPCC 0x62706363 |
Bits per component box. | |
#define | JP2_JP2 0x6a703220 |
File type fields. | |
#define | JP2_PCLR 0x70636c72 |
Palette box. | |
#define | JP2_CMAP 0x636d6170 |
Component Mapping box. | |
#define | JP2_CDEF 0x63646566 |
Channel Definition box. | |
Typedefs | |
typedef struct opj_jp2_cdef_info | opj_jp2_cdef_info_t |
Channel description: channel index, type, assocation. | |
typedef struct opj_jp2_cdef | opj_jp2_cdef_t |
Channel descriptions and number of descriptions. | |
typedef struct opj_jp2_cmap_comp | opj_jp2_cmap_comp_t |
Component mappings: channel index, mapping type, palette index. | |
typedef struct opj_jp2_pclr | opj_jp2_pclr_t |
Palette data: table entries, palette columns. | |
typedef struct opj_jp2_color | opj_jp2_color_t |
Collector for ICC profile, palette, component mapping, channel description. | |
typedef struct opj_jp2_comps | opj_jp2_comps_t |
JP2 component. | |
typedef struct opj_jp2 | opj_jp2_t |
JPEG-2000 file format reader/writer. | |
typedef struct opj_jp2_box | opj_jp2_box_t |
JP2 Box. | |
Functions | |
Exported functions | |
void | jp2_write_jp2h (opj_jp2_t *jp2, opj_cio_t *cio) |
Write the JP2H box - JP2 Header box (used in MJ2) | |
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) | |
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_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. | |
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. | |
The JPEG-2000 file format Reader/Writer (JP2)
#define JP2_BPCC 0x62706363 |
Bits per component box.
#define JP2_CDEF 0x63646566 |
Channel Definition box.
#define JP2_CMAP 0x636d6170 |
Component Mapping box.
#define JP2_COLR 0x636f6c72 |
Colour specification box.
#define JP2_DTBL 0x6474626c |
Data Reference box.
#define JP2_FTYP 0x66747970 |
File type box.
#define JP2_IHDR 0x69686472 |
Image header box.
#define JP2_JP 0x6a502020 |
JPEG 2000 signature box.
#define JP2_JP2 0x6a703220 |
File type fields.
#define JP2_JP2C 0x6a703263 |
Contiguous codestream box.
#define JP2_JP2H 0x6a703268 |
JP2 header box.
#define JP2_PCLR 0x70636c72 |
Palette box.
#define JP2_URL 0x75726c20 |
URL box.
#define JPIP_JPIP 0x6a706970 |
typedef struct opj_jp2_box opj_jp2_box_t |
JP2 Box.
typedef struct opj_jp2_cdef_info opj_jp2_cdef_info_t |
Channel description: channel index, type, assocation.
typedef struct opj_jp2_cdef opj_jp2_cdef_t |
Channel descriptions and number of descriptions.
typedef struct opj_jp2_cmap_comp opj_jp2_cmap_comp_t |
Component mappings: channel index, mapping type, palette index.
typedef struct opj_jp2_color opj_jp2_color_t |
Collector for ICC profile, palette, component mapping, channel description.
typedef struct opj_jp2_comps opj_jp2_comps_t |
JP2 component.
typedef struct opj_jp2_pclr opj_jp2_pclr_t |
Palette data: table entries, palette columns.
opj_jp2_t * jp2_create_compress | ( | opj_common_ptr | cinfo | ) |
Creates a JP2 compression structure.
cinfo | Codec context info |
References opj_jp2::cinfo, opj_jp2::j2k, j2k_create_compress(), jp2_destroy_compress(), and opj_malloc.
Referenced by opj_create_compress().
opj_jp2_t * jp2_create_decompress | ( | opj_common_ptr | cinfo | ) |
Creates a JP2 decompression structure.
cinfo | Codec context info |
References opj_jp2::cinfo, opj_jp2::j2k, j2k_create_decompress(), jp2_destroy_decompress(), and opj_calloc.
Referenced by opj_create_decompress().
void jp2_destroy_compress | ( | opj_jp2_t * | jp2 | ) |
Destroy a JP2 compressor handle.
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().
void jp2_destroy_decompress | ( | opj_jp2_t * | jp2 | ) |
Destroy a JP2 decompressor handle.
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().
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)
jp2 | JP2 handle |
cio | Input buffer stream |
ext | Collector for profile, cdef and pclr data |
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().
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.
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().
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.
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_jp2::comps, opj_image::comps, opj_jp2::enumcs, EVT_ERROR, opj_jp2::h, opj_jp2::IPR, opj_jp2::j2k, j2k_setup_encoder(), JP2_JP2, opj_jp2::jpip_on, opj_cparameters::jpip_on, opj_jp2::meth, opj_jp2::minversion, opj_jp2::numcl, opj_jp2::numcomps, opj_image::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().
Write the JP2H box - JP2 Header box (used in MJ2)
jp2 | JP2 handle |
cio | Output buffer stream |
References opj_jp2::bpc, opj_jp2::cinfo, cio_seek(), cio_skip(), cio_tell(), cio_write(), EVT_ERROR, opj_jp2_box::init_pos, JP2_JP2H, jp2_write_bpcc(), jp2_write_colr(), jp2_write_ihdr(), opj_jp2_box::length, opj_event_msg(), and OPJ_FALSE.
Referenced by opj_jp2_encode().
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.
jp2 | JP2 decompressor handle |
cio | Input buffer stream |
cstr_info | Codestream information structure if required, 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_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, j2k_decode(), jp2_apply_cdef(), jp2_apply_pclr(), opj_jp2_color::jp2_cdef, jp2_free_pclr(), opj_jp2_color::jp2_pclr, jp2_read_struct(), and opj_event_msg().
Referenced by opj_decode_with_info().
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.
jp2 | JP2 compressor handle |
cio | Output buffer stream |
image | Image to encode |
cstr_info | Codestream information structure if required, NULL 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().