/*
- * Copyright (c) 2004, Yannick Verschueren
- * Copyright (c) 2005, Herv� Drolon, FreeImage Team
- * Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
+ * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
+ * Copyright (c) 2002-2007, Professor Benoit Macq
+ * Copyright (c) 2002-2003, Yannick Verschueren
+ * Copyright (c) 2005, Herve Drolon, FreeImage Team
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
#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_DBTL 0x6474626c /**< ??? */
-#define JP2_BPCC 0x62706363 /**< Bits per component box */
-#define JP2_JP2 0x6a703220 /**< File type fields */
+#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 */
/* ----------------------------------------------------------------------- */
+/**
+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
*/
typedef struct opj_jp2_comps {
- int depth;
- int sgnd;
+ int depth;
+ int sgnd;
int bpcc;
} opj_jp2_comps_t;
JPEG-2000 file format reader/writer
*/
typedef struct opj_jp2 {
- /** codec context */
- opj_common_ptr cinfo;
- /** handle to the J2K codec */
- opj_j2k_t *j2k;
- unsigned int w;
- unsigned int h;
- unsigned int numcomps;
- unsigned int bpc;
- unsigned int C;
- unsigned int UnkC;
- unsigned int IPR;
- unsigned int meth;
- unsigned int approx;
- unsigned int enumcs;
- unsigned int precedence;
- unsigned int brand;
- unsigned int minversion;
- unsigned int numcl;
- unsigned int *cl;
- opj_jp2_comps_t *comps;
- opj_image_t *image;
- unsigned int j2k_codestream_offset;
- unsigned int j2k_codestream_length;
+ /** codec context */
+ opj_common_ptr cinfo;
+ /** handle to the J2K codec */
+ opj_j2k_t *j2k;
+ unsigned int w;
+ unsigned int h;
+ unsigned int numcomps;
+ unsigned int bpc;
+ unsigned int C;
+ unsigned int UnkC;
+ unsigned int IPR;
+ unsigned int meth;
+ unsigned int approx;
+ unsigned int enumcs;
+ unsigned int precedence;
+ unsigned int brand;
+ unsigned int minversion;
+ unsigned int numcl;
+ unsigned int *cl;
+ opj_jp2_comps_t *comps;
+ unsigned int j2k_codestream_offset;
+ unsigned int j2k_codestream_length;
+ opj_bool jpip_on;
+ opj_bool ignore_pclr_cmap_cdef;
} opj_jp2_t;
/**
int init_pos;
} opj_jp2_box_t;
-/** @name Local static functions */
+/** @name Exported functions */
/*@{*/
/* ----------------------------------------------------------------------- */
/**
-Read box headers
-@param cinfo Codec context info
-@param cio Input stream
-@param box
-@return Returns true if successful, returns false otherwise
-*/
-static bool jp2_read_boxhdr(opj_common_ptr cinfo, opj_cio_t *cio, opj_jp2_box_t *box);
-static void jp2_write_url(opj_cio_t *cio, char *Idx_file);
-/**
-Read the IHDR box - Image Header box
-@param jp2 JP2 handle
-@param cio Input buffer stream
-@return Returns true if successful, returns false otherwise
-*/
-static bool jp2_read_ihdr(opj_jp2_t *jp2, opj_cio_t *cio);
-static void jp2_write_ihdr(opj_jp2_t *jp2, opj_cio_t *cio);
-static void jp2_write_bpcc(opj_jp2_t *jp2, opj_cio_t *cio);
-static bool jp2_read_bpcc(opj_jp2_t *jp2, opj_cio_t *cio);
-static void jp2_write_colr(opj_jp2_t *jp2, opj_cio_t *cio);
-static bool jp2_read_colr(opj_jp2_t *jp2, opj_cio_t *cio);
-/**
-Write the JP2H box - JP2 Header box
-@param jp2 JP2 handle
-@param cio Output buffer stream
-*/
-static void jp2_write_jp2h(opj_jp2_t *jp2, opj_cio_t *cio);
-/**
-Read the JP2H box - JP2 Header box
-@param jp2 JP2 handle
-@param cio Input buffer stream
-@return Returns true if successful, returns false otherwise
-*/
-static bool jp2_read_jp2h(opj_jp2_t *jp2, opj_cio_t *cio);
-/**
-Write the FTYP box - File type box
+Write the JP2H box - JP2 Header box (used in MJ2)
@param jp2 JP2 handle
@param cio Output buffer stream
*/
-static void jp2_write_ftyp(opj_jp2_t *jp2, opj_cio_t *cio);
-/**
-Read the FTYP box - File type box
-@param jp2 JP2 handle
-@param cio Input buffer stream
-@return Returns true if successful, returns false otherwise
-*/
-static bool jp2_read_ftyp(opj_jp2_t *jp2, opj_cio_t *cio);
-static int jp2_write_jp2c(opj_jp2_t *jp2, opj_cio_t *cio, char *index);
-static bool jp2_read_jp2c(opj_jp2_t *jp2, opj_cio_t *cio, unsigned int *j2k_codestream_length, unsigned int *j2k_codestream_offset);
-static void jp2_write_jp(opj_cio_t *cio);
+void jp2_write_jp2h(opj_jp2_t *jp2, opj_cio_t *cio);
/**
-Read the JP box - JPEG 2000 signature
+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
*/
-static bool jp2_read_jp(opj_jp2_t *jp2, opj_cio_t *cio);
-/**
-Decode the structure of a JP2 file
-@param jp2 JP2 handle
-@param cio Input buffer stream
-@return Returns true if successful, returns false otherwise
-*/
-static bool jp2_read_struct(opj_jp2_t *jp2, opj_cio_t *cio);
-/* ----------------------------------------------------------------------- */
-/*@}*/
-
-/** @name Exported functions */
-/*@{*/
-/* ----------------------------------------------------------------------- */
+opj_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
Decode an image from a JPEG-2000 file stream
@param jp2 JP2 decompressor handle
@param cio Input buffer stream
+@param cstr_info Codestream information structure if required, NULL otherwise
@return Returns a decoded image if successful, returns NULL otherwise
*/
-opj_image_t* jp2_decode(opj_jp2_t *jp2, opj_cio_t *cio);
+opj_image_t* opj_jp2_decode(opj_jp2_t *jp2, opj_cio_t *cio, opj_codestream_info_t *cstr_info);
/**
Creates a JP2 compression structure
@param cinfo Codec context info
@param jp2 JP2 compressor handle
@param cio Output buffer stream
@param image Image to encode
-@param index Name of the index file if required, NULL otherwise
+@param cstr_info Codestream information structure if required, NULL otherwise
@return Returns true if successful, returns false otherwise
*/
-bool jp2_encode(opj_jp2_t *jp2, opj_cio_t *cio, opj_image_t *image, char *index);
+opj_bool opj_jp2_encode(opj_jp2_t *jp2, opj_cio_t *cio, opj_image_t *image, opj_codestream_info_t *cstr_info);
+
/* ----------------------------------------------------------------------- */
/*@}*/
projects / openjpeg.git / blobdiff