2 * Copyright (c) 2001-2003, David Janssens
3 * Copyright (c) 2002-2003, Yannick Verschueren
4 * Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe
5 * Copyright (c) 2005, Herv� Drolon, FreeImage Team
6 * Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
33 #define OPENJPEG_VERSION "1.1.0"
36 ==========================================================
38 ==========================================================
41 #if defined(OPJ_STATIC) || !(defined(WIN32) || defined(__WIN32__))
45 #define OPJ_CALLCONV __stdcall
47 The following ifdef block is the standard way of creating macros which make exporting
48 from a DLL simpler. All files within this DLL are compiled with the OPJ_EXPORTS
49 symbol defined on the command line. this symbol should not be defined on any project
50 that uses this DLL. This way any other project whose source files include this file see
51 OPJ_API functions as being imported from a DLL, wheras this DLL sees symbols
52 defined with this macro as being exported.
55 #define OPJ_API __declspec(dllexport)
57 #define OPJ_API __declspec(dllimport)
58 #endif /* OPJ_EXPORTS */
59 #endif /* !OPJ_STATIC || !WIN32 */
62 #if defined(HAVE_STDBOOL_H)
64 The C language implementation does correctly provide the standard header
70 The C language implementation does not provide the standard header file
71 "stdbool.h" as required by ISO/IEC 9899:1999. Try to compensate for this
84 #endif /* __cplusplus */
87 ==========================================================
88 Useful constant definitions
89 ==========================================================
93 #define MAX_PATH 260 /**< Maximum allowed size for filenames */
96 #define J2K_MAXRLVLS 33 /**< Number of maximum resolution level authorized */
97 #define J2K_MAXBANDS (3*J2K_MAXRLVLS-2) /**< Number of maximum sub-band linked to number of resolution level */
101 #define JPWL_MAX_NO_TILESPECS 16 /**< Maximum number of tile parts expected by JPWL: increase at your will */
102 #define JPWL_MAX_NO_PACKSPECS 16 /**< Maximum number of packet parts expected by JPWL: increase at your will */
103 #define JPWL_MAX_NO_MARKERS 512 /**< Maximum number of JPWL markers: increase at your will */
104 #define JPWL_PRIVATEINDEX_NAME "jpwl_index_privatefilename" /**< index file name used when JPWL is on */
105 #define JPWL_EXPECTED_COMPONENTS 3 /**< Expect this number of components, so you'll find better the first EPB */
106 #define JPWL_MAXIMUM_TILES 8192 /**< Expect this maximum number of tiles, to avoid some crashes */
107 #define JPWL_MAXIMUM_HAMMING 2 /**< Expect this maximum number of bit errors in marker id's */
108 #endif /* USE_JPWL */
112 ==========================================================
114 ==========================================================
117 /** Progression order */
118 typedef enum PROG_ORDER {
119 PROG_UNKNOWN = -1, /**< place-holder */
120 LRCP = 0, /**< layer-resolution-component-precinct order */
121 RLCP = 1, /**< resolution-layer-component-precinct order */
122 RPCL = 2, /**< resolution-precinct-component-layer order */
123 PCRL = 3, /**< precinct-component-resolution-layer order */
124 CPRL = 4 /**< component-precinct-resolution-layer order */
128 Supported image color spaces
130 typedef enum COLOR_SPACE {
131 CLRSPC_UNKNOWN = -1, /**< place-holder */
132 CLRSPC_SRGB = 1, /**< sRGB */
133 CLRSPC_GRAY = 2, /**< grayscale */
134 CLRSPC_SYCC = 3 /**< YUV */
140 typedef enum CODEC_FORMAT {
141 CODEC_UNKNOWN = -1, /**< place-holder */
142 CODEC_J2K = 0, /**< JPEG-2000 codestream : read/write */
143 CODEC_JPT = 1, /**< JPT-stream (JPEG 2000, JPIP) : read only */
144 CODEC_JP2 = 2 /**< JPEG-2000 file format : read/write */
148 ==========================================================
149 event manager typedef definitions
150 ==========================================================
154 Callback function prototype for events
155 @param msg Event message
158 typedef void (*opj_msg_callback) (const char *msg, void *client_data);
161 Message handler object
166 <li>Debugging messages
169 typedef struct opj_event_mgr {
170 /** Error message callback if available, NULL otherwise */
171 opj_msg_callback error_handler;
172 /** Warning message callback if available, NULL otherwise */
173 opj_msg_callback warning_handler;
174 /** Debug message callback if available, NULL otherwise */
175 opj_msg_callback info_handler;
180 ==========================================================
181 codec typedef definitions
182 ==========================================================
186 Progression order changes
188 typedef struct opj_poc {
190 int layno1, resno1, compno1;
197 Compression parameters
199 typedef struct opj_cparameters {
200 /** size of tile: tile_size_on = false (not in argument) or = true (in argument) */
210 /** allocation by rate/distortion */
212 /** allocation by fixed layer */
214 /** add fixed_quality */
215 int cp_fixed_quality;
218 /** comment for coding */
220 /** csty : coding style */
222 /** progression order (default LRCP) */
223 OPJ_PROG_ORDER prog_order;
224 /** progression order changes */
226 /** number of progression order changes (POC), default to 0 */
228 /** number of layers */
230 /** rates of layers */
231 float tcp_rates[100];
232 /** different psnr for successive layers */
233 float tcp_distoratio[100];
234 /** number of resolutions */
236 /** initial code block width, default to 64 */
238 /** initial code block height, default to 64 */
240 /** mode switch (cblk_style) */
242 /** 1 : use the irreversible DWT 9-7, 0 : use lossless compression (default) */
244 /** region of interest: affected component in [0..3], -1 means no ROI */
246 /** region of interest: upshift value */
248 /* number of precinct size specifications */
250 /** initial precinct width */
251 int prcw_init[J2K_MAXRLVLS];
252 /** initial precinct height */
253 int prch_init[J2K_MAXRLVLS];
255 /**@name command line encoder parameters (not used inside the library) */
257 /** input file name */
258 char infile[MAX_PATH];
259 /** output file name */
260 char outfile[MAX_PATH];
261 /** creation of an index file, default to 0 (false) */
263 /** index file name */
264 char index[MAX_PATH];
265 /** subimage encoding: origin image offset in x direction */
267 /** subimage encoding: origin image offset in y direction */
269 /** subsampling value for dx */
271 /** subsampling value for dy */
273 /** input file format 0: PGX, 1: PxM, 2: BMP */
275 /** output file format 0: J2K, 1: JP2, 2: JPT */
281 /**@name JPWL encoding parameters */
283 /** enables writing of EPC in MH, thus activating JPWL */
285 /** error protection method for MH (0,1,16,32,37-128) */
287 /** tile number of header protection specification (>=0) */
288 int jpwl_hprot_TPH_tileno[JPWL_MAX_NO_TILESPECS];
289 /** error protection methods for TPHs (0,1,16,32,37-128) */
290 int jpwl_hprot_TPH[JPWL_MAX_NO_TILESPECS];
291 /** tile number of packet protection specification (>=0) */
292 int jpwl_pprot_tileno[JPWL_MAX_NO_PACKSPECS];
293 /** packet number of packet protection specification (>=0) */
294 int jpwl_pprot_packno[JPWL_MAX_NO_PACKSPECS];
295 /** error protection methods for packets (0,1,16,32,37-128) */
296 int jpwl_pprot[JPWL_MAX_NO_PACKSPECS];
297 /** enables writing of ESD, (0=no/1/2 bytes) */
299 /** sensitivity addressing size (0=auto/2/4 bytes) */
301 /** sensitivity range (0-3) */
303 /** sensitivity method for MH (-1=no,0-7) */
305 /** tile number of sensitivity specification (>=0) */
306 int jpwl_sens_TPH_tileno[JPWL_MAX_NO_TILESPECS];
307 /** sensitivity methods for TPHs (-1=no,0-7) */
308 int jpwl_sens_TPH[JPWL_MAX_NO_TILESPECS];
310 #endif /* USE_JPWL */
316 Decompression parameters
318 typedef struct opj_dparameters {
320 Set the number of highest resolution levels to be discarded.
321 The image resolution is effectively divided by 2 to the power of the number of discarded levels.
322 The reduce factor is limited by the smallest total number of decomposition levels among tiles.
323 if != 0, then original dimension divided by 2^(reduce);
324 if == 0 or not used, image is decoded to the full resolution
328 Set the maximum number of quality layers to decode.
329 If there are less quality layers than the specified number, all the quality layers are decoded.
330 if != 0, then only the first "layer" layers are decoded;
331 if == 0 or not used, all the quality layers are decoded
335 /**@name command line encoder parameters (not used inside the library) */
337 /** input file name */
338 char infile[MAX_PATH];
339 /** output file name */
340 char outfile[MAX_PATH];
341 /** input file format 0: J2K, 1: JP2, 2: JPT */
343 /** output file format 0: PGX, 1: PxM, 2: BMP */
349 /**@name JPWL decoding parameters */
351 /** activates the JPWL correction capabilities */
353 /** expected number of components */
355 /** maximum number of tiles */
358 #endif /* USE_JPWL */
362 /** Common fields between JPEG-2000 compression and decompression master structs. */
364 #define opj_common_fields \
365 opj_event_mgr_t *event_mgr; /**< pointer to the event manager */\
366 void * client_data; /**< Available for use by application */\
367 bool is_decompressor; /**< So common code can tell which is which */\
368 OPJ_CODEC_FORMAT codec_format; /**< selected codec */\
369 void *j2k_handle; /**< pointer to the J2K codec */\
370 void *jp2_handle /**< pointer to the JP2 codec */
372 /* Routines that are to be used by both halves of the library are declared
373 * to receive a pointer to this structure. There are no actual instances of
374 * opj_common_struct_t, only of opj_cinfo_t and opj_dinfo_t.
376 typedef struct opj_common_struct {
377 opj_common_fields; /* Fields common to both master struct types */
378 /* Additional fields follow in an actual opj_cinfo_t or
379 * opj_dinfo_t. All three structs must agree on these
380 * initial fields! (This would be a lot cleaner in C++.)
382 } opj_common_struct_t;
384 typedef opj_common_struct_t * opj_common_ptr;
387 Compression context info
389 typedef struct opj_cinfo {
390 /** Fields shared with opj_dinfo_t */
392 /* other specific fields go here */
396 Decompression context info
398 typedef struct opj_dinfo {
399 /** Fields shared with opj_cinfo_t */
401 /* other specific fields go here */
405 ==========================================================
406 I/O stream typedef definitions
407 ==========================================================
413 /** The stream was opened for reading. */
414 #define OPJ_STREAM_READ 0x0001
415 /** The stream was opened for writing. */
416 #define OPJ_STREAM_WRITE 0x0002
419 Byte input-output stream (CIO)
421 typedef struct opj_cio {
423 opj_common_ptr cinfo;
425 /** open mode (read/write) either OPJ_STREAM_READ or OPJ_STREAM_WRITE */
427 /** pointer to the start of the buffer */
428 unsigned char *buffer;
429 /** buffer size in bytes */
432 /** pointer to the start of the stream */
433 unsigned char *start;
434 /** pointer to the end of the stream */
436 /** pointer to the current position */
441 ==========================================================
442 image typedef definitions
443 ==========================================================
447 Defines a single image component
449 typedef struct opj_image_comp {
450 /** XRsiz: horizontal separation of a sample of ith component with respect to the reference grid */
452 /** YRsiz: vertical separation of a sample of ith component with respect to the reference grid */
458 /** x component offset compared to the whole image */
460 /** y component offset compared to the whole image */
464 /** image depth in bits */
466 /** signed (1) / unsigned (0) */
468 /** number of decoded resolution */
470 /** number of division by 2 of the out image compared to the original size of image */
472 /** image component data */
477 Defines image data and characteristics
479 typedef struct opj_image {
480 /** XOsiz: horizontal offset from the origin of the reference grid to the left side of the image area */
482 /** YOsiz: vertical offset from the origin of the reference grid to the top side of the image area */
484 /** Xsiz: width of the reference grid */
486 /** Ysiz: height of the reference grid */
488 /** number of components in the image */
490 /** color space: sRGB, Greyscale or YUV */
491 OPJ_COLOR_SPACE color_space;
492 /** image components */
493 opj_image_comp_t *comps;
497 Component parameters structure used by the opj_image_create function
499 typedef struct opj_image_comptparm {
500 /** XRsiz: horizontal separation of a sample of ith component with respect to the reference grid */
502 /** YRsiz: vertical separation of a sample of ith component with respect to the reference grid */
508 /** x component offset compared to the whole image */
510 /** y component offset compared to the whole image */
514 /** image depth in bits */
516 /** signed (1) / unsigned (0) */
518 } opj_image_cmptparm_t;
526 ==========================================================
528 ==========================================================
531 OPJ_API const char * OPJ_CALLCONV opj_version();
534 ==========================================================
535 image functions definitions
536 ==========================================================
541 @param numcmpts number of components
542 @param cmptparms components parameters
543 @param clrspc image color space
544 @return returns a new image structure if successful, returns NULL otherwise
546 OPJ_API opj_image_t* OPJ_CALLCONV opj_image_create(int numcmpts, opj_image_cmptparm_t *cmptparms, OPJ_COLOR_SPACE clrspc);
549 Deallocate any resources associated with an image
550 @param image image to be destroyed
552 OPJ_API void OPJ_CALLCONV opj_image_destroy(opj_image_t *image);
555 ==========================================================
556 stream functions definitions
557 ==========================================================
561 Open and allocate a memory stream for read / write.
562 On reading, the user must provide a buffer containing encoded data. The buffer will be
563 wrapped by the returned CIO handle.
564 On writing, buffer parameters must be set to 0: a buffer will be allocated by the library
565 to contain encoded data.
566 @param cinfo Codec context info
567 @param buffer Reading: buffer address. Writing: NULL
568 @param length Reading: buffer length. Writing: 0
569 @return Returns a CIO handle if successful, returns NULL otherwise
571 OPJ_API opj_cio_t* OPJ_CALLCONV opj_cio_open(opj_common_ptr cinfo, unsigned char *buffer, int length);
574 Close and free a CIO handle
575 @param cio CIO handle to free
577 OPJ_API void OPJ_CALLCONV opj_cio_close(opj_cio_t *cio);
580 Get position in byte stream
581 @param cio CIO handle
582 @return Returns the position in bytes
584 OPJ_API int OPJ_CALLCONV cio_tell(opj_cio_t *cio);
586 Set position in byte stream
587 @param cio CIO handle
588 @param pos Position, in number of bytes, from the beginning of the stream
590 OPJ_API void OPJ_CALLCONV cio_seek(opj_cio_t *cio, int pos);
593 ==========================================================
594 event manager functions definitions
595 ==========================================================
598 OPJ_API opj_event_mgr_t* OPJ_CALLCONV opj_set_event_mgr(opj_common_ptr cinfo, opj_event_mgr_t *event_mgr, void *context);
601 ==========================================================
602 codec functions definitions
603 ==========================================================
606 Creates a J2K/JPT/JP2 decompression structure
607 @param format Decoder to select
608 @return Returns a handle to a decompressor if successful, returns NULL otherwise
610 OPJ_API opj_dinfo_t* OPJ_CALLCONV opj_create_decompress(OPJ_CODEC_FORMAT format);
612 Destroy a decompressor handle
613 @param dinfo decompressor handle to destroy
615 OPJ_API void OPJ_CALLCONV opj_destroy_decompress(opj_dinfo_t *dinfo);
617 Set decoding parameters to default values
618 @param parameters Decompression parameters
620 OPJ_API void OPJ_CALLCONV opj_set_default_decoder_parameters(opj_dparameters_t *parameters);
622 Setup the decoder decoding parameters using user parameters.
623 Decoding parameters are returned in j2k->cp.
624 @param dinfo decompressor handle
625 @param parameters decompression parameters
627 OPJ_API void OPJ_CALLCONV opj_setup_decoder(opj_dinfo_t *dinfo, opj_dparameters_t *parameters);
629 Decode an image from a JPEG-2000 codestream
630 @param dinfo decompressor handle
631 @param cio Input buffer stream
632 @return Returns a decoded image if successful, returns NULL otherwise
634 OPJ_API opj_image_t* OPJ_CALLCONV opj_decode(opj_dinfo_t *dinfo, opj_cio_t *cio);
636 Creates a J2K/JP2 compression structure
637 @param format Coder to select
638 @return Returns a handle to a compressor if successful, returns NULL otherwise
640 OPJ_API opj_cinfo_t* OPJ_CALLCONV opj_create_compress(OPJ_CODEC_FORMAT format);
642 Destroy a compressor handle
643 @param cinfo compressor handle to destroy
645 OPJ_API void OPJ_CALLCONV opj_destroy_compress(opj_cinfo_t *cinfo);
647 Set encoding parameters to default values, that means :
651 <li>Size of precinct : 2^15 x 2^15 (means 1 precinct)
652 <li>Size of code-block : 64 x 64
653 <li>Number of resolutions: 6
654 <li>No SOP marker in the codestream
655 <li>No EPH marker in the codestream
656 <li>No sub-sampling in x or y direction
657 <li>No mode switch activated
658 <li>Progression order: LRCP
661 <li>No offset of the origin of the image
662 <li>No offset of the origin of the tiles
663 <li>Reversible DWT 5-3
665 @param parameters Compression parameters
667 OPJ_API void OPJ_CALLCONV opj_set_default_encoder_parameters(opj_cparameters_t *parameters);
669 Setup the encoder parameters using the current image and using user parameters.
670 @param cinfo compressor handle
671 @param parameters compression parameters
672 @param image input filled image
674 OPJ_API void OPJ_CALLCONV opj_setup_encoder(opj_cinfo_t *cinfo, opj_cparameters_t *parameters, opj_image_t *image);
676 Encode an image into a JPEG-2000 codestream
677 @param cinfo compressor handle
678 @param cio Output buffer stream
679 @param image Image to encode
680 @param index Name of the index file if required, NULL otherwise
681 @return Returns true if successful, returns false otherwise
683 OPJ_API bool OPJ_CALLCONV opj_encode(opj_cinfo_t *cinfo, opj_cio_t *cio, opj_image_t *image, char *index);
689 #endif /* OPENJPEG_H */