* Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
* Copyright (c) 2005, Herve Drolon, FreeImage Team
* Copyright (c) 2006-2007, Parvatha Elangovan
+ * Copyright (c) 2010-2011, Kaori Hagihara
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
#define OPJ_TRUE 1
#define OPJ_FALSE 0
+typedef unsigned int OPJ_UINT32;
+typedef int OPJ_INT32;
+typedef unsigned short OPJ_UINT16;
+typedef short OPJ_INT16;
+typedef char OPJ_CHAR;
+typedef unsigned char OPJ_BYTE;
+typedef unsigned int OPJ_SIZE_T;
+typedef double OPJ_FLOAT64;
+typedef float OPJ_FLOAT32;
+
+// Avoid compile-time warning because parameter is not used
+#define OPJ_ARG_NOT_USED(x) (void)(x)
+
/*
==========================================================
Useful constant definitions
#define J2K_MAXRLVLS 33 /**< Number of maximum resolution level authorized */
#define J2K_MAXBANDS (3*J2K_MAXRLVLS-2) /**< Number of maximum sub-band linked to number of resolution level */
+#define J2K_DEFAULT_NB_SEGS 10
+#define J2K_STREAM_CHUNK_SIZE 0x100000 /** 1 mega by default */
+#define J2K_DEFAULT_HEADER_SIZE 1000
+#define J2K_MCC_DEFAULT_NB_RECORDS 10
+#define J2K_MCT_DEFAULT_NB_RECORDS 10
+
/* UniPG>> */
#define JPWL_MAX_NO_TILESPECS 16 /**< Maximum number of tile parts expected by JPWL: increase at your will */
#define JPWL_MAX_NO_PACKSPECS 16 /**< Maximum number of packet parts expected by JPWL: increase at your will */
*/
typedef enum CODEC_FORMAT {
CODEC_UNKNOWN = -1, /**< place-holder */
- CODEC_J2K = 0, /**< JPEG-2000 codestream : read/write */
- CODEC_JPT = 1, /**< JPT-stream (JPEG 2000, JPIP) : read only */
- CODEC_JP2 = 2 /**< JPEG-2000 file format : read/write */
+ CODEC_J2K = 0, /**< JPEG-2000 codestream : read/write */
+ CODEC_JPT = 1, /**< JPT-stream (JPEG 2000, JPIP) : read only */
+ CODEC_JP2 = 2, /**< JPEG-2000 file format : read/write */
} OPJ_CODEC_FORMAT;
/**
</ul>
*/
typedef struct opj_event_mgr {
+ void* client_data;
/** Error message callback if available, NULL otherwise */
opj_msg_callback error_handler;
/** Warning message callback if available, NULL otherwise */
char tp_flag;
/** MCT (multiple component transform) */
char tcp_mct;
+ /** Enable JPIP indexing*/
+ opj_bool jpip_on;
} opj_cparameters_t;
/**
/* other specific fields go here */
} opj_dinfo_t;
+/**
+ * J2k codec.
+ */
+typedef void * opj_codec_t;
+
/*
==========================================================
I/O stream typedef definitions
unsigned char *bp;
} opj_cio_t;
+typedef OPJ_UINT32 (* opj_stream_read_fn) (void * p_buffer, OPJ_UINT32 p_nb_bytes, void * p_user_data) ;
+typedef OPJ_UINT32 (* opj_stream_write_fn) (void * p_buffer, OPJ_UINT32 p_nb_bytes, void * p_user_data) ;
+typedef OPJ_SIZE_T (* opj_stream_skip_fn) (OPJ_SIZE_T p_nb_bytes, void * p_user_data) ;
+typedef opj_bool (* opj_stream_seek_fn) (OPJ_SIZE_T p_nb_bytes, void * p_user_data) ;
+
+
+typedef void * opj_stream_t;
+
/*
==========================================================
image typedef definitions
*/
typedef struct opj_image {
/** XOsiz: horizontal offset from the origin of the reference grid to the left side of the image area */
- int x0;
+ OPJ_UINT32 x0;
/** YOsiz: vertical offset from the origin of the reference grid to the top side of the image area */
- int y0;
+ OPJ_UINT32 y0;
/** Xsiz: width of the reference grid */
- int x1;
+ OPJ_UINT32 x1;
/** Ysiz: height of the reference grid */
- int y1;
+ OPJ_UINT32 y1;
/** number of components in the image */
- int numcomps;
+ OPJ_UINT16 numcomps;
/** color space: sRGB, Greyscale or YUV */
OPJ_COLOR_SPACE color_space;
/** image components */
int icc_profile_len;
} opj_image_t;
+
/**
Component parameters structure used by the opj_image_create function
*/
int sgnd;
} opj_image_cmptparm_t;
+
+
+/**
+Defines a single image component characteristics (uses in new API)
+*/
+typedef struct opj_image_comp_header {
+ /** XRsiz: horizontal separation of a sample of ith component with respect to the reference grid */
+ int dx;
+ /** YRsiz: vertical separation of a sample of ith component with respect to the reference grid */
+ int dy;
+ /** data width */
+ int w;
+ /** data height */
+ int h;
+ /** x component offset compared to the whole image */
+ int x0;
+ /** y component offset compared to the whole image */
+ int y0;
+ /** precision */
+ int prec;
+ /** image depth in bits */
+ int bpp;
+ /** signed (1) / unsigned (0) */
+ int sgnd;
+ /** number of decoded resolution */
+ int resno_decoded;
+ /** number of division by 2 of the out image compared to the original size of image */
+ int factor;
+} opj_image_comp_header_t;
+
+/**
+Defines image characteristics (uses in new API)
+*/
+typedef struct opj_image_header {
+ /** XOsiz: horizontal offset from the origin of the reference grid to the left side of the image area */
+ OPJ_UINT32 x0;
+ /** YOsiz: vertical offset from the origin of the reference grid to the top side of the image area */
+ OPJ_UINT32 y0;
+ /** Xsiz: width of the reference grid */
+ OPJ_UINT32 x1;
+ /** Ysiz: height of the reference grid */
+ OPJ_UINT32 y1;
+ /** number of components in the image */
+ OPJ_UINT16 numcomps;
+ /** color space: sRGB, Greyscale or YUV */
+ OPJ_COLOR_SPACE color_space;
+ /** image components */
+ opj_image_comp_header_t *comps;
+
+ /** XTOsiz */
+ OPJ_UINT32 tile_x0;
+ /** YTOsiz */
+ OPJ_UINT32 tile_y0;
+ /** XTsiz */
+ OPJ_UINT32 tile_width;
+ /** YTsiz */
+ OPJ_UINT32 tile_height;
+ /** number of tiles in width */
+ OPJ_UINT32 nb_tiles_x;
+ /** number of tiles in height */
+ OPJ_UINT32 nb_tiles_y;
+
+ /** 'restricted' ICC profile */
+ unsigned char *icc_profile_buf;
+ /** size of ICC profile */
+ int icc_profile_len;
+} opj_image_header_t;
+
+
/*
==========================================================
Information on the JPEG 2000 codestream
double disto;
} opj_packet_info_t;
+
+/* UniPG>> */
+/**
+Marker structure
+*/
+typedef struct opj_marker_info_t {
+ /** marker type */
+ unsigned short int type;
+ /** position in codestream */
+ int pos;
+ /** length, marker val included */
+ int len;
+} opj_marker_info_t;
+/* <<UniPG */
+
/**
Index structure : Information concerning tile-parts
*/
int numpix;
/** add fixed_quality */
double distotile;
+ /** number of markers */
+ int marknum;
+ /** list of markers */
+ opj_marker_info_t *marker;
+ /** actual size of markers array */
+ int maxmarknum;
/** number of tile parts */
int num_tps;
/** information concerning tile parts */
opj_tp_info_t *tp;
} opj_tile_info_t;
-/* UniPG>> */
-/**
-Marker structure
-*/
-typedef struct opj_marker_info_t {
- /** marker type */
- unsigned short int type;
- /** position in codestream */
- int pos;
- /** length, marker val included */
- int len;
-} opj_marker_info_t;
-/* <<UniPG */
-
/**
Index structure of the codestream
*/
*/
OPJ_API void OPJ_CALLCONV opj_image_destroy(opj_image_t *image);
+OPJ_API void OPJ_CALLCONV opj_image_header_destroy(opj_image_header_t *image);
+
/*
==========================================================
stream functions definitions
*/
OPJ_API void OPJ_CALLCONV cio_seek(opj_cio_t *cio, int pos);
+
+/**
+ * Creates an abstract stream. This function does nothing except allocating memory and initializing the abstract stream.
+ *
+ * @param l_is_reader if set to true then the stream will be an input stream, an output stream else.
+ *
+ * @return a stream object.
+*/
+OPJ_API opj_stream_t* OPJ_CALLCONV opj_stream_default_create(opj_bool p_is_input);
+OPJ_API opj_stream_t* OPJ_CALLCONV opj_stream_create(OPJ_UINT32 p_size, opj_bool p_is_input);
+
+/**
+ * Destroys a stream created by opj_create_stream. This function does NOT close the abstract stream. If needed the user must
+ * close its own implementation of the stream.
+ *
+ * @param p_stream the stream to destroy.
+ */
+OPJ_API void OPJ_CALLCONV opj_stream_destroy(opj_stream_t* p_stream);
+
+/**
+ * Sets the given function to be used as a read function.
+ * @param p_stream the stream to modify
+ * @param p_function the function to use a read function.
+*/
+OPJ_API void OPJ_CALLCONV opj_stream_set_read_function(opj_stream_t* p_stream, opj_stream_read_fn p_function);
+
+/**
+ * Sets the given function to be used as a write function.
+ * @param p_stream the stream to modify
+ * @param p_function the function to use a write function.
+*/
+OPJ_API void OPJ_CALLCONV opj_stream_set_write_function(opj_stream_t* p_stream, opj_stream_write_fn p_function);
+
+/**
+ * Sets the given function to be used as a skip function.
+ * @param p_stream the stream to modify
+ * @param p_function the function to use a skip function.
+*/
+OPJ_API void OPJ_CALLCONV opj_stream_set_skip_function(opj_stream_t* p_stream, opj_stream_skip_fn p_function);
+
+/**
+ * Sets the given function to be used as a seek function, the stream is then seekable.
+ * @param p_stream the stream to modify
+ * @param p_function the function to use a skip function.
+*/
+OPJ_API void OPJ_CALLCONV opj_stream_set_seek_function(opj_stream_t* p_stream, opj_stream_seek_fn p_function);
+
+
+/**
+ * Sets the given data to be used as a user data for the stream.
+ * @param p_stream the stream to modify
+ * @param p_data the data to set.
+*/
+OPJ_API void OPJ_CALLCONV opj_stream_set_user_data (opj_stream_t* p_stream, void * p_data);
+
+
+/**
+ * Helper function.
+ * Sets the stream to be a file stream. The FILE must have been open previously.
+ * @param p_stream the stream to modify
+ * @param p_file handler to an already open file.
+*/
+OPJ_API opj_stream_t* OPJ_CALLCONV opj_stream_create_default_file_stream (FILE * p_file, opj_bool p_is_read_stream);
+OPJ_API opj_stream_t* OPJ_CALLCONV opj_stream_create_file_stream (FILE * p_file, OPJ_UINT32 p_buffer_size, opj_bool p_is_read_stream);
+
+
+
/*
==========================================================
event manager functions definitions
codec functions definitions
==========================================================
*/
+/**
+Creates a J2K/JPT/JP2 decompression structure
+@param format Decoder to select
+@return Returns a handle to a decompressor if successful, returns NULL otherwise
+*/
+OPJ_API opj_codec_t* OPJ_CALLCONV opj_create_decompress_v2(OPJ_CODEC_FORMAT format);
+
+
/**
Creates a J2K/JPT/JP2 decompression structure
@param format Decoder to select
@param parameters decompression parameters
*/
OPJ_API void OPJ_CALLCONV opj_setup_decoder(opj_dinfo_t *dinfo, opj_dparameters_t *parameters);
+
+OPJ_API opj_bool OPJ_CALLCONV opj_setup_decoder_v2( opj_codec_t *p_info,
+ opj_dparameters_t *parameters,
+ opj_event_mgr_t* event_mgr);
+
/**
Decode an image from a JPEG-2000 codestream
@param dinfo decompressor handle
OPJ_API void OPJ_CALLCONV opj_setup_encoder(opj_cinfo_t *cinfo, opj_cparameters_t *parameters, opj_image_t *image);
/**
Encode an image into a JPEG-2000 codestream
-@param cinfo compressor handle
+3@param cinfo compressor handle
@param cio Output buffer stream
@param image Image to encode
@param index Depreacted -> Set to NULL. To extract index, used opj_encode_wci()
*/
OPJ_API void OPJ_CALLCONV opj_destroy_cstr_info(opj_codestream_info_t *cstr_info);
+
+/**
+ * Decodes an image header.
+ *
+ * @param p_codec codec to use to decode the image.
+ * @param p_image pointer to a previously created image.
+ * @param p_tile_x0 pointer to a value that will hold the reference point x0 of the tiling grid.
+ * @param p_tile_y0 pointer to a value that will hold the reference point y0 of the tiling grid.
+ * @param p_tile_width pointer to a value that will hold the size in x of a tile in the grid.
+ * @param p_tile_height pointer to a value that will hold the size in y of a tile in the grid.
+ * @param p_nb_tiles_x pointer to a value that will hold the number of tiles in the x direction.
+ * @param p_nb_tiles_y pointer to a value that will hold the number of tiles in the y direction.
+ */
+OPJ_API opj_bool OPJ_CALLCONV opj_read_header ( opj_stream_t *p_cio,
+ opj_codec_t *p_codec,
+ opj_image_header_t **p_image_header,
+ opj_codestream_info_t **p_cstr_info );
+
+/**
+Destroy a decompressor handle
+@param dinfo decompressor handle to destroy
+*/
+OPJ_API void OPJ_CALLCONV opj_destroy_codec(opj_codec_t * p_codec);
+
#ifdef __cplusplus
}
#endif
projects / openjpeg.git / blobdiff