2 * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
3 * Copyright (c) 2002-2007, Professor Benoit Macq
4 * Copyright (c) 2001-2003, David Janssens
5 * Copyright (c) 2002-2003, Yannick Verschueren
6 * Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
7 * Copyright (c) 2005, Herve Drolon, FreeImage Team
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
23 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
34 #define OPENJPEG_VERSION "1.1.0"
37 ==========================================================
39 ==========================================================
42 #if defined(OPJ_STATIC) || !(defined(WIN32) || defined(__WIN32__))
46 #define OPJ_CALLCONV __stdcall
48 The following ifdef block is the standard way of creating macros which make exporting
49 from a DLL simpler. All files within this DLL are compiled with the OPJ_EXPORTS
50 symbol defined on the command line. this symbol should not be defined on any project
51 that uses this DLL. This way any other project whose source files include this file see
52 OPJ_API functions as being imported from a DLL, wheras this DLL sees symbols
53 defined with this macro as being exported.
56 #define OPJ_API __declspec(dllexport)
58 #define OPJ_API __declspec(dllimport)
59 #endif /* OPJ_EXPORTS */
60 #endif /* !OPJ_STATIC || !WIN32 */
63 #if defined(HAVE_STDBOOL_H)
65 The C language implementation does correctly provide the standard header
71 The C language implementation does not provide the standard header file
72 "stdbool.h" as required by ISO/IEC 9899:1999. Try to compensate for this
85 #endif /* __cplusplus */
88 ==========================================================
89 Useful constant definitions
90 ==========================================================
93 #define OPJ_PATH_LEN 4096 /**< Maximum allowed size for filenames */
95 #define J2K_MAXRLVLS 33 /**< Number of maximum resolution level authorized */
96 #define J2K_MAXBANDS (3*J2K_MAXRLVLS-2) /**< Number of maximum sub-band linked to number of resolution level */
100 #define JPWL_MAX_NO_TILESPECS 16 /**< Maximum number of tile parts expected by JPWL: increase at your will */
101 #define JPWL_MAX_NO_PACKSPECS 16 /**< Maximum number of packet parts expected by JPWL: increase at your will */
102 #define JPWL_MAX_NO_MARKERS 512 /**< Maximum number of JPWL markers: increase at your will */
103 #define JPWL_PRIVATEINDEX_NAME "jpwl_index_privatefilename" /**< index file name used when JPWL is on */
104 #define JPWL_EXPECTED_COMPONENTS 3 /**< Expect this number of components, so you'll find better the first EPB */
105 #define JPWL_MAXIMUM_TILES 8192 /**< Expect this maximum number of tiles, to avoid some crashes */
106 #define JPWL_MAXIMUM_HAMMING 2 /**< Expect this maximum number of bit errors in marker id's */
107 #endif /* USE_JPWL */
111 ==========================================================
113 ==========================================================
116 /** Progression order */
117 typedef enum PROG_ORDER {
118 PROG_UNKNOWN = -1, /**< place-holder */
119 LRCP = 0, /**< layer-resolution-component-precinct order */
120 RLCP = 1, /**< resolution-layer-component-precinct order */
121 RPCL = 2, /**< resolution-precinct-component-layer order */
122 PCRL = 3, /**< precinct-component-resolution-layer order */
123 CPRL = 4 /**< component-precinct-resolution-layer order */
127 Supported image color spaces
129 typedef enum COLOR_SPACE {
130 CLRSPC_UNKNOWN = -1, /**< place-holder */
131 CLRSPC_SRGB = 1, /**< sRGB */
132 CLRSPC_GRAY = 2, /**< grayscale */
133 CLRSPC_SYCC = 3 /**< YUV */
139 typedef enum CODEC_FORMAT {
140 CODEC_UNKNOWN = -1, /**< place-holder */
141 CODEC_J2K = 0, /**< JPEG-2000 codestream : read/write */
142 CODEC_JPT = 1, /**< JPT-stream (JPEG 2000, JPIP) : read only */
143 CODEC_JP2 = 2 /**< JPEG-2000 file format : read/write */
147 Limit decoding to certain portions of the codestream.
149 typedef enum LIMIT_DECODING {
150 NO_LIMITATION = 0, /**< No limitation for the decoding. The entire codestream will de decoded */
151 LIMIT_TO_MAIN_HEADER = 1 /**< The decoding is limited to the Main Header */
152 } OPJ_LIMIT_DECODING;
155 ==========================================================
156 event manager typedef definitions
157 ==========================================================
161 Callback function prototype for events
162 @param msg Event message
165 typedef void (*opj_msg_callback) (const char *msg, void *client_data);
168 Message handler object
173 <li>Debugging messages
176 typedef struct opj_event_mgr {
177 /** Error message callback if available, NULL otherwise */
178 opj_msg_callback error_handler;
179 /** Warning message callback if available, NULL otherwise */
180 opj_msg_callback warning_handler;
181 /** Debug message callback if available, NULL otherwise */
182 opj_msg_callback info_handler;
187 ==========================================================
188 codec typedef definitions
189 ==========================================================
193 Progression order changes
195 typedef struct opj_poc {
197 int layno1, resno1, compno1;
204 Compression parameters
206 typedef struct opj_cparameters {
207 /** size of tile: tile_size_on = false (not in argument) or = true (in argument) */
217 /** allocation by rate/distortion */
219 /** allocation by fixed layer */
221 /** add fixed_quality */
222 int cp_fixed_quality;
225 /** comment for coding */
227 /** csty : coding style */
229 /** progression order (default LRCP) */
230 OPJ_PROG_ORDER prog_order;
231 /** progression order changes */
233 /** number of progression order changes (POC), default to 0 */
235 /** number of layers */
237 /** rates of layers */
238 float tcp_rates[100];
239 /** different psnr for successive layers */
240 float tcp_distoratio[100];
241 /** number of resolutions */
243 /** initial code block width, default to 64 */
245 /** initial code block height, default to 64 */
247 /** mode switch (cblk_style) */
249 /** 1 : use the irreversible DWT 9-7, 0 : use lossless compression (default) */
251 /** region of interest: affected component in [0..3], -1 means no ROI */
253 /** region of interest: upshift value */
255 /* number of precinct size specifications */
257 /** initial precinct width */
258 int prcw_init[J2K_MAXRLVLS];
259 /** initial precinct height */
260 int prch_init[J2K_MAXRLVLS];
262 /**@name command line encoder parameters (not used inside the library) */
264 /** input file name */
265 char infile[OPJ_PATH_LEN];
266 /** output file name */
267 char outfile[OPJ_PATH_LEN];
268 /** creation of an index file, default to 0 (false) */
270 /** index file name */
271 char index[OPJ_PATH_LEN];
272 /** subimage encoding: origin image offset in x direction */
274 /** subimage encoding: origin image offset in y direction */
276 /** subsampling value for dx */
278 /** subsampling value for dy */
280 /** input file format 0: PGX, 1: PxM, 2: BMP */
282 /** output file format 0: J2K, 1: JP2, 2: JPT */
288 /**@name JPWL encoding parameters */
290 /** enables writing of EPC in MH, thus activating JPWL */
292 /** error protection method for MH (0,1,16,32,37-128) */
294 /** tile number of header protection specification (>=0) */
295 int jpwl_hprot_TPH_tileno[JPWL_MAX_NO_TILESPECS];
296 /** error protection methods for TPHs (0,1,16,32,37-128) */
297 int jpwl_hprot_TPH[JPWL_MAX_NO_TILESPECS];
298 /** tile number of packet protection specification (>=0) */
299 int jpwl_pprot_tileno[JPWL_MAX_NO_PACKSPECS];
300 /** packet number of packet protection specification (>=0) */
301 int jpwl_pprot_packno[JPWL_MAX_NO_PACKSPECS];
302 /** error protection methods for packets (0,1,16,32,37-128) */
303 int jpwl_pprot[JPWL_MAX_NO_PACKSPECS];
304 /** enables writing of ESD, (0=no/1/2 bytes) */
306 /** sensitivity addressing size (0=auto/2/4 bytes) */
308 /** sensitivity range (0-3) */
310 /** sensitivity method for MH (-1=no,0-7) */
312 /** tile number of sensitivity specification (>=0) */
313 int jpwl_sens_TPH_tileno[JPWL_MAX_NO_TILESPECS];
314 /** sensitivity methods for TPHs (-1=no,0-7) */
315 int jpwl_sens_TPH[JPWL_MAX_NO_TILESPECS];
317 #endif /* USE_JPWL */
323 Decompression parameters
325 typedef struct opj_dparameters {
327 Set the number of highest resolution levels to be discarded.
328 The image resolution is effectively divided by 2 to the power of the number of discarded levels.
329 The reduce factor is limited by the smallest total number of decomposition levels among tiles.
330 if != 0, then original dimension divided by 2^(reduce);
331 if == 0 or not used, image is decoded to the full resolution
335 Set the maximum number of quality layers to decode.
336 If there are less quality layers than the specified number, all the quality layers are decoded.
337 if != 0, then only the first "layer" layers are decoded;
338 if == 0 or not used, all the quality layers are decoded
343 Specify whether the decoding should be done on the entire codestream, or be limited to the main header
344 Limiting the decoding to the main header makes it possible to extract the characteristics of the codestream
345 if == NO_LIMITATION, the entire codestream is decoded;
346 if == LIMIT_TO_MAIN_HEADER, only the main header is decoded;
348 OPJ_LIMIT_DECODING cp_limit_decoding;
350 /**@name command line encoder parameters (not used inside the library) */
352 /** input file name */
353 char infile[OPJ_PATH_LEN];
354 /** output file name */
355 char outfile[OPJ_PATH_LEN];
356 /** input file format 0: J2K, 1: JP2, 2: JPT */
358 /** output file format 0: PGX, 1: PxM, 2: BMP */
364 /**@name JPWL decoding parameters */
366 /** activates the JPWL correction capabilities */
368 /** expected number of components */
370 /** maximum number of tiles */
373 #endif /* USE_JPWL */
377 /** Common fields between JPEG-2000 compression and decompression master structs. */
379 #define opj_common_fields \
380 opj_event_mgr_t *event_mgr; /**< pointer to the event manager */\
381 void * client_data; /**< Available for use by application */\
382 bool is_decompressor; /**< So common code can tell which is which */\
383 OPJ_CODEC_FORMAT codec_format; /**< selected codec */\
384 void *j2k_handle; /**< pointer to the J2K codec */\
385 void *jp2_handle /**< pointer to the JP2 codec */
387 /* Routines that are to be used by both halves of the library are declared
388 * to receive a pointer to this structure. There are no actual instances of
389 * opj_common_struct_t, only of opj_cinfo_t and opj_dinfo_t.
391 typedef struct opj_common_struct {
392 opj_common_fields; /* Fields common to both master struct types */
393 /* Additional fields follow in an actual opj_cinfo_t or
394 * opj_dinfo_t. All three structs must agree on these
395 * initial fields! (This would be a lot cleaner in C++.)
397 } opj_common_struct_t;
399 typedef opj_common_struct_t * opj_common_ptr;
402 Compression context info
404 typedef struct opj_cinfo {
405 /** Fields shared with opj_dinfo_t */
407 /* other specific fields go here */
411 Decompression context info
413 typedef struct opj_dinfo {
414 /** Fields shared with opj_cinfo_t */
416 /* other specific fields go here */
420 ==========================================================
421 I/O stream typedef definitions
422 ==========================================================
428 /** The stream was opened for reading. */
429 #define OPJ_STREAM_READ 0x0001
430 /** The stream was opened for writing. */
431 #define OPJ_STREAM_WRITE 0x0002
434 Byte input-output stream (CIO)
436 typedef struct opj_cio {
438 opj_common_ptr cinfo;
440 /** open mode (read/write) either OPJ_STREAM_READ or OPJ_STREAM_WRITE */
442 /** pointer to the start of the buffer */
443 unsigned char *buffer;
444 /** buffer size in bytes */
447 /** pointer to the start of the stream */
448 unsigned char *start;
449 /** pointer to the end of the stream */
451 /** pointer to the current position */
456 ==========================================================
457 image typedef definitions
458 ==========================================================
462 Defines a single image component
464 typedef struct opj_image_comp {
465 /** XRsiz: horizontal separation of a sample of ith component with respect to the reference grid */
467 /** YRsiz: vertical separation of a sample of ith component with respect to the reference grid */
473 /** x component offset compared to the whole image */
475 /** y component offset compared to the whole image */
479 /** image depth in bits */
481 /** signed (1) / unsigned (0) */
483 /** number of decoded resolution */
485 /** number of division by 2 of the out image compared to the original size of image */
487 /** image component data */
492 Defines image data and characteristics
494 typedef struct opj_image {
495 /** XOsiz: horizontal offset from the origin of the reference grid to the left side of the image area */
497 /** YOsiz: vertical offset from the origin of the reference grid to the top side of the image area */
499 /** Xsiz: width of the reference grid */
501 /** Ysiz: height of the reference grid */
503 /** number of components in the image */
505 /** color space: sRGB, Greyscale or YUV */
506 OPJ_COLOR_SPACE color_space;
507 /** image components */
508 opj_image_comp_t *comps;
512 Component parameters structure used by the opj_image_create function
514 typedef struct opj_image_comptparm {
515 /** XRsiz: horizontal separation of a sample of ith component with respect to the reference grid */
517 /** YRsiz: vertical separation of a sample of ith component with respect to the reference grid */
523 /** x component offset compared to the whole image */
525 /** y component offset compared to the whole image */
529 /** image depth in bits */
531 /** signed (1) / unsigned (0) */
533 } opj_image_cmptparm_t;
541 ==========================================================
543 ==========================================================
546 OPJ_API const char * OPJ_CALLCONV opj_version();
549 ==========================================================
550 image functions definitions
551 ==========================================================
556 @param numcmpts number of components
557 @param cmptparms components parameters
558 @param clrspc image color space
559 @return returns a new image structure if successful, returns NULL otherwise
561 OPJ_API opj_image_t* OPJ_CALLCONV opj_image_create(int numcmpts, opj_image_cmptparm_t *cmptparms, OPJ_COLOR_SPACE clrspc);
564 Deallocate any resources associated with an image
565 @param image image to be destroyed
567 OPJ_API void OPJ_CALLCONV opj_image_destroy(opj_image_t *image);
570 ==========================================================
571 stream functions definitions
572 ==========================================================
576 Open and allocate a memory stream for read / write.
577 On reading, the user must provide a buffer containing encoded data. The buffer will be
578 wrapped by the returned CIO handle.
579 On writing, buffer parameters must be set to 0: a buffer will be allocated by the library
580 to contain encoded data.
581 @param cinfo Codec context info
582 @param buffer Reading: buffer address. Writing: NULL
583 @param length Reading: buffer length. Writing: 0
584 @return Returns a CIO handle if successful, returns NULL otherwise
586 OPJ_API opj_cio_t* OPJ_CALLCONV opj_cio_open(opj_common_ptr cinfo, unsigned char *buffer, int length);
589 Close and free a CIO handle
590 @param cio CIO handle to free
592 OPJ_API void OPJ_CALLCONV opj_cio_close(opj_cio_t *cio);
595 Get position in byte stream
596 @param cio CIO handle
597 @return Returns the position in bytes
599 OPJ_API int OPJ_CALLCONV cio_tell(opj_cio_t *cio);
601 Set position in byte stream
602 @param cio CIO handle
603 @param pos Position, in number of bytes, from the beginning of the stream
605 OPJ_API void OPJ_CALLCONV cio_seek(opj_cio_t *cio, int pos);
608 ==========================================================
609 event manager functions definitions
610 ==========================================================
613 OPJ_API opj_event_mgr_t* OPJ_CALLCONV opj_set_event_mgr(opj_common_ptr cinfo, opj_event_mgr_t *event_mgr, void *context);
616 ==========================================================
617 codec functions definitions
618 ==========================================================
621 Creates a J2K/JPT/JP2 decompression structure
622 @param format Decoder to select
623 @return Returns a handle to a decompressor if successful, returns NULL otherwise
625 OPJ_API opj_dinfo_t* OPJ_CALLCONV opj_create_decompress(OPJ_CODEC_FORMAT format);
627 Destroy a decompressor handle
628 @param dinfo decompressor handle to destroy
630 OPJ_API void OPJ_CALLCONV opj_destroy_decompress(opj_dinfo_t *dinfo);
632 Set decoding parameters to default values
633 @param parameters Decompression parameters
635 OPJ_API void OPJ_CALLCONV opj_set_default_decoder_parameters(opj_dparameters_t *parameters);
637 Setup the decoder decoding parameters using user parameters.
638 Decoding parameters are returned in j2k->cp.
639 @param dinfo decompressor handle
640 @param parameters decompression parameters
642 OPJ_API void OPJ_CALLCONV opj_setup_decoder(opj_dinfo_t *dinfo, opj_dparameters_t *parameters);
644 Decode an image from a JPEG-2000 codestream
645 @param dinfo decompressor handle
646 @param cio Input buffer stream
647 @return Returns a decoded image if successful, returns NULL otherwise
649 OPJ_API opj_image_t* OPJ_CALLCONV opj_decode(opj_dinfo_t *dinfo, opj_cio_t *cio);
651 Creates a J2K/JP2 compression structure
652 @param format Coder to select
653 @return Returns a handle to a compressor if successful, returns NULL otherwise
655 OPJ_API opj_cinfo_t* OPJ_CALLCONV opj_create_compress(OPJ_CODEC_FORMAT format);
657 Destroy a compressor handle
658 @param cinfo compressor handle to destroy
660 OPJ_API void OPJ_CALLCONV opj_destroy_compress(opj_cinfo_t *cinfo);
662 Set encoding parameters to default values, that means :
666 <li>Size of precinct : 2^15 x 2^15 (means 1 precinct)
667 <li>Size of code-block : 64 x 64
668 <li>Number of resolutions: 6
669 <li>No SOP marker in the codestream
670 <li>No EPH marker in the codestream
671 <li>No sub-sampling in x or y direction
672 <li>No mode switch activated
673 <li>Progression order: LRCP
676 <li>No offset of the origin of the image
677 <li>No offset of the origin of the tiles
678 <li>Reversible DWT 5-3
680 @param parameters Compression parameters
682 OPJ_API void OPJ_CALLCONV opj_set_default_encoder_parameters(opj_cparameters_t *parameters);
684 Setup the encoder parameters using the current image and using user parameters.
685 @param cinfo compressor handle
686 @param parameters compression parameters
687 @param image input filled image
689 OPJ_API void OPJ_CALLCONV opj_setup_encoder(opj_cinfo_t *cinfo, opj_cparameters_t *parameters, opj_image_t *image);
691 Encode an image into a JPEG-2000 codestream
692 @param cinfo compressor handle
693 @param cio Output buffer stream
694 @param image Image to encode
695 @param index Name of the index file if required, NULL otherwise
696 @return Returns true if successful, returns false otherwise
698 OPJ_API bool OPJ_CALLCONV opj_encode(opj_cinfo_t *cinfo, opj_cio_t *cio, opj_image_t *image, char *index);
704 #endif /* OPENJPEG_H */