Classes | |
struct | opj_jp2 |
struct | opj_jp2_box |
struct | opj_jp2_comps |
Defines | |
#define | JP2_BPCC 0x62706363 |
#define | JP2_COLR 0x636f6c72 |
#define | JP2_DBTL 0x6474626c |
#define | JP2_FTYP 0x66747970 |
#define | JP2_IHDR 0x69686472 |
#define | JP2_JP 0x6a502020 |
#define | JP2_JP2 0x6a703220 |
#define | JP2_JP2C 0x6a703263 |
#define | JP2_JP2H 0x6a703268 |
#define | JP2_URL 0x75726c20 |
#define | JPIP_JPIP 0x6a706970 |
Typedefs | |
typedef struct opj_jp2_box | opj_jp2_box_t |
typedef struct opj_jp2_comps | opj_jp2_comps_t |
typedef struct opj_jp2 | opj_jp2_t |
Exported functions | |
| |
opj_jp2_t * | jp2_create_compress (opj_common_ptr cinfo) |
opj_jp2_t * | jp2_create_decompress (opj_common_ptr cinfo) |
opj_image_t * | jp2_decode (opj_jp2_t *jp2, opj_cio_t *cio, opj_codestream_info_t *cstr_info) |
void | jp2_destroy_compress (opj_jp2_t *jp2) |
void | jp2_destroy_decompress (opj_jp2_t *jp2) |
bool | jp2_encode (opj_jp2_t *jp2, opj_cio_t *cio, opj_image_t *image, opj_codestream_info_t *cstr_info) |
bool | jp2_read_jp2h (opj_jp2_t *jp2, opj_cio_t *cio) |
void | jp2_setup_decoder (opj_jp2_t *jp2, opj_dparameters_t *parameters) |
void | jp2_setup_encoder (opj_jp2_t *jp2, opj_cparameters_t *parameters, opj_image_t *image) |
void | jp2_write_jp2h (opj_jp2_t *jp2, opj_cio_t *cio) |
#define JP2_BPCC 0x62706363 |
Bits per component box
#define JP2_COLR 0x636f6c72 |
Colour specification box
#define JP2_DBTL 0x6474626c |
???
#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_URL 0x75726c20 |
URL box
#define JPIP_JPIP 0x6a706970 |
typedef struct opj_jp2_box opj_jp2_box_t |
JP2 Box
typedef struct opj_jp2_comps opj_jp2_comps_t |
JP2 component
opj_jp2_t* jp2_create_compress | ( | opj_common_ptr | cinfo | ) |
Creates a JP2 compression structure
cinfo | Codec context info |
opj_jp2_t* jp2_create_decompress | ( | opj_common_ptr | cinfo | ) |
Creates a JP2 decompression structure
cinfo | Codec context info |
opj_image_t* 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 |
void jp2_destroy_compress | ( | opj_jp2_t * | jp2 | ) |
Destroy a JP2 compressor handle
jp2 | JP2 compressor handle to destroy |
void jp2_destroy_decompress | ( | opj_jp2_t * | jp2 | ) |
Destroy a JP2 decompressor handle
jp2 | JP2 decompressor handle to destroy |
bool 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 |
bool jp2_read_jp2h | ( | opj_jp2_t * | jp2, | |
opj_cio_t * | cio | |||
) |
Read the JP2H box - JP2 Header box (used in MJ2)
jp2 | JP2 handle | |
cio | Input buffer stream |
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 |
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 |
void jp2_write_jp2h | ( | opj_jp2_t * | jp2, | |
opj_cio_t * | cio | |||
) |
Write the JP2H box - JP2 Header box (used in MJ2)
jp2 | JP2 handle | |
cio | Output buffer stream |