OpenJPEG 1.4 stable
This commit is contained in:
@@ -46,11 +46,64 @@
|
||||
#define JP2_COLR 0x636f6c72 /**< Colour specification box */
|
||||
#define JP2_JP2C 0x6a703263 /**< Contiguous codestream box */
|
||||
#define JP2_URL 0x75726c20 /**< URL box */
|
||||
#define JP2_DBTL 0x6474626c /**< ??? */
|
||||
#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 */
|
||||
|
||||
/* ----------------------------------------------------------------------- */
|
||||
/**
|
||||
Channel description: channel index, type, assocation
|
||||
*/
|
||||
typedef struct opj_jp2_cdef_info
|
||||
{
|
||||
unsigned short cn, typ, asoc;
|
||||
} opj_jp2_cdef_info_t;
|
||||
|
||||
/**
|
||||
Channel descriptions and number of descriptions
|
||||
*/
|
||||
typedef struct opj_jp2_cdef
|
||||
{
|
||||
opj_jp2_cdef_info_t *info;
|
||||
unsigned short n;
|
||||
} opj_jp2_cdef_t;
|
||||
|
||||
/**
|
||||
Component mappings: channel index, mapping type, palette index
|
||||
*/
|
||||
typedef struct opj_jp2_cmap_comp
|
||||
{
|
||||
unsigned short cmp;
|
||||
unsigned char mtyp, pcol;
|
||||
} opj_jp2_cmap_comp_t;
|
||||
|
||||
/**
|
||||
Palette data: table entries, palette columns
|
||||
*/
|
||||
typedef struct opj_jp2_pclr
|
||||
{
|
||||
unsigned int *entries;
|
||||
unsigned char *channel_sign;
|
||||
unsigned char *channel_size;
|
||||
opj_jp2_cmap_comp_t *cmap;
|
||||
unsigned short nr_entries, nr_channels;
|
||||
} opj_jp2_pclr_t;
|
||||
|
||||
/**
|
||||
Collector for ICC profile, palette, component mapping, channel description
|
||||
*/
|
||||
typedef struct opj_jp2_color
|
||||
{
|
||||
unsigned char *icc_profile_buf;
|
||||
int icc_profile_len;
|
||||
|
||||
opj_jp2_cdef_t *jp2_cdef;
|
||||
opj_jp2_pclr_t *jp2_pclr;
|
||||
unsigned char jp2_has_colr;
|
||||
} opj_jp2_color_t;
|
||||
|
||||
/**
|
||||
JP2 component
|
||||
@@ -111,9 +164,10 @@ void jp2_write_jp2h(opj_jp2_t *jp2, opj_cio_t *cio);
|
||||
Read the JP2H box - JP2 Header box (used in MJ2)
|
||||
@param jp2 JP2 handle
|
||||
@param cio Input buffer stream
|
||||
@param ext Collector for profile, cdef and pclr data
|
||||
@return Returns true if successful, returns false otherwise
|
||||
*/
|
||||
bool jp2_read_jp2h(opj_jp2_t *jp2, opj_cio_t *cio);
|
||||
bool jp2_read_jp2h(opj_jp2_t *jp2, opj_cio_t *cio, opj_jp2_color_t *color);
|
||||
/**
|
||||
Creates a JP2 decompression structure
|
||||
@param cinfo Codec context info
|
||||
|
||||
Reference in New Issue
Block a user