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
8 * Copyright (c) 2006-2007, Parvatha Elangovan
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
21 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
37 ==========================================================
39 ==========================================================
42 #if defined(OPJ_STATIC) || !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.
55 #if defined(OPJ_EXPORTS) || defined(DLL_EXPORT)
56 #define OPJ_API __declspec(dllexport)
58 #define OPJ_API __declspec(dllimport)
59 #endif /* OPJ_EXPORTS */
60 #endif /* !OPJ_STATIC || !_WIN32 */
67 ==========================================================
68 Useful constant definitions
69 ==========================================================
72 #define OPJ_PATH_LEN 4096 /**< Maximum allowed size for filenames */
74 #define J2K_MAXRLVLS 33 /**< Number of maximum resolution level authorized */
75 #define J2K_MAXBANDS (3*J2K_MAXRLVLS-2) /**< Number of maximum sub-band linked to number of resolution level */
78 #define JPWL_MAX_NO_TILESPECS 16 /**< Maximum number of tile parts expected by JPWL: increase at your will */
79 #define JPWL_MAX_NO_PACKSPECS 16 /**< Maximum number of packet parts expected by JPWL: increase at your will */
80 #define JPWL_MAX_NO_MARKERS 512 /**< Maximum number of JPWL markers: increase at your will */
81 #define JPWL_PRIVATEINDEX_NAME "jpwl_index_privatefilename" /**< index file name used when JPWL is on */
82 #define JPWL_EXPECTED_COMPONENTS 3 /**< Expect this number of components, so you'll find better the first EPB */
83 #define JPWL_MAXIMUM_TILES 8192 /**< Expect this maximum number of tiles, to avoid some crashes */
84 #define JPWL_MAXIMUM_HAMMING 2 /**< Expect this maximum number of bit errors in marker id's */
85 #define JPWL_MAXIMUM_EPB_ROOM 65450 /**< Expect this maximum number of bytes for composition of EPBs */
89 ==========================================================
91 ==========================================================
96 typedef enum RSIZ_CAPABILITIES {
97 STD_RSIZ = 0, /** Standard JPEG2000 profile*/
98 CINEMA2K = 3, /** Profile name for a 2K image*/
99 CINEMA4K = 4 /** Profile name for a 4K image*/
100 } OPJ_RSIZ_CAPABILITIES;
103 Digital cinema operation mode
105 typedef enum CINEMA_MODE {
106 OFF = 0, /** Not Digital Cinema*/
107 CINEMA2K_24 = 1, /** 2K Digital Cinema at 24 fps*/
108 CINEMA2K_48 = 2, /** 2K Digital Cinema at 48 fps*/
109 CINEMA4K_24 = 3 /** 4K Digital Cinema at 24 fps*/
115 typedef enum PROG_ORDER {
116 PROG_UNKNOWN = -1, /**< place-holder */
117 LRCP = 0, /**< layer-resolution-component-precinct order */
118 RLCP = 1, /**< resolution-layer-component-precinct order */
119 RPCL = 2, /**< resolution-precinct-component-layer order */
120 PCRL = 3, /**< precinct-component-resolution-layer order */
121 CPRL = 4 /**< component-precinct-resolution-layer order */
125 Supported image color spaces
127 typedef enum COLOR_SPACE {
128 CLRSPC_UNKNOWN = -1, /**< not supported by the library */
129 CLRSPC_UNSPECIFIED = 0, /**< not specified in the codestream */
130 CLRSPC_SRGB = 1, /**< sRGB */
131 CLRSPC_GRAY = 2, /**< grayscale */
132 CLRSPC_SYCC = 3 /**< YUV */
138 typedef enum CODEC_FORMAT {
139 CODEC_UNKNOWN = -1, /**< place-holder */
140 CODEC_J2K = 0, /**< JPEG-2000 codestream : read/write */
141 CODEC_JPT = 1, /**< JPT-stream (JPEG 2000, JPIP) : read only */
142 CODEC_JP2 = 2 /**< JPEG-2000 file format : read/write */
146 Limit decoding to certain portions of the codestream.
148 typedef enum LIMIT_DECODING {
149 NO_LIMITATION = 0, /**< No limitation for the decoding. The entire codestream will de decoded */
150 LIMIT_TO_MAIN_HEADER = 1, /**< The decoding is limited to the Main Header */
151 DECODE_ALL_BUT_PACKETS = 2 /**< Decode everything except the JPEG 2000 packets */
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 {
196 /** Resolution num start, Component num start, given by POC */
198 /** Layer num end,Resolution num end, Component num end, given by POC */
199 int layno1, resno1, compno1;
200 /** Layer num start,Precinct num start, Precinct num end */
201 int layno0, precno0, precno1;
202 /** Progression order enum*/
203 OPJ_PROG_ORDER prg1,prg;
204 /** Progression order string*/
208 /** Start and end values for Tile width and height*/
210 /** Start value, initialised in pi_initialise_encode*/
211 int layS, resS, compS, prcS;
212 /** End value, initialised in pi_initialise_encode */
213 int layE, resE, compE, prcE;
214 /** Start and end values of Tile width and height, initialised in pi_initialise_encode*/
215 int txS,txE,tyS,tyE,dx,dy;
216 /** Temporary values for Tile parts, initialised in pi_create_encode */
217 int lay_t, res_t, comp_t, prc_t,tx0_t,ty0_t;
221 Compression parameters
223 typedef struct opj_cparameters {
224 /** size of tile: tile_size_on = false (not in argument) or = true (in argument) */
225 opj_bool tile_size_on;
234 /** allocation by rate/distortion */
236 /** allocation by fixed layer */
238 /** add fixed_quality */
239 int cp_fixed_quality;
242 /** comment for coding */
244 /** csty : coding style */
246 /** progression order (default LRCP) */
247 OPJ_PROG_ORDER prog_order;
248 /** progression order changes */
250 /** number of progression order changes (POC), default to 0 */
252 /** number of layers */
254 /** rates of layers */
255 float tcp_rates[100];
256 /** different psnr for successive layers */
257 float tcp_distoratio[100];
258 /** number of resolutions */
260 /** initial code block width, default to 64 */
262 /** initial code block height, default to 64 */
264 /** mode switch (cblk_style) */
266 /** 1 : use the irreversible DWT 9-7, 0 : use lossless compression (default) */
268 /** region of interest: affected component in [0..3], -1 means no ROI */
270 /** region of interest: upshift value */
272 /* number of precinct size specifications */
274 /** initial precinct width */
275 int prcw_init[J2K_MAXRLVLS];
276 /** initial precinct height */
277 int prch_init[J2K_MAXRLVLS];
279 /**@name command line encoder parameters (not used inside the library) */
281 /** input file name */
282 char infile[OPJ_PATH_LEN];
283 /** output file name */
284 char outfile[OPJ_PATH_LEN];
285 /** DEPRECATED. Index generation is now handeld with the opj_encode_with_info() function. Set to NULL */
287 /** DEPRECATED. Index generation is now handeld with the opj_encode_with_info() function. Set to NULL */
288 char index[OPJ_PATH_LEN];
289 /** subimage encoding: origin image offset in x direction */
291 /** subimage encoding: origin image offset in y direction */
293 /** subsampling value for dx */
295 /** subsampling value for dy */
297 /** input file format 0: PGX, 1: PxM, 2: BMP 3:TIF*/
299 /** output file format 0: J2K, 1: JP2, 2: JPT */
304 /**@name JPWL encoding parameters */
306 /** enables writing of EPC in MH, thus activating JPWL */
307 opj_bool jpwl_epc_on;
308 /** error protection method for MH (0,1,16,32,37-128) */
310 /** tile number of header protection specification (>=0) */
311 int jpwl_hprot_TPH_tileno[JPWL_MAX_NO_TILESPECS];
312 /** error protection methods for TPHs (0,1,16,32,37-128) */
313 int jpwl_hprot_TPH[JPWL_MAX_NO_TILESPECS];
314 /** tile number of packet protection specification (>=0) */
315 int jpwl_pprot_tileno[JPWL_MAX_NO_PACKSPECS];
316 /** packet number of packet protection specification (>=0) */
317 int jpwl_pprot_packno[JPWL_MAX_NO_PACKSPECS];
318 /** error protection methods for packets (0,1,16,32,37-128) */
319 int jpwl_pprot[JPWL_MAX_NO_PACKSPECS];
320 /** enables writing of ESD, (0=no/1/2 bytes) */
322 /** sensitivity addressing size (0=auto/2/4 bytes) */
324 /** sensitivity range (0-3) */
326 /** sensitivity method for MH (-1=no,0-7) */
328 /** tile number of sensitivity specification (>=0) */
329 int jpwl_sens_TPH_tileno[JPWL_MAX_NO_TILESPECS];
330 /** sensitivity methods for TPHs (-1=no,0-7) */
331 int jpwl_sens_TPH[JPWL_MAX_NO_TILESPECS];
335 /** Digital Cinema compliance 0-not compliant, 1-compliant*/
336 OPJ_CINEMA_MODE cp_cinema;
337 /** Maximum rate for each component. If == 0, component size limitation is not considered */
340 OPJ_RSIZ_CAPABILITIES cp_rsiz;
341 /** Tile part generation*/
343 /** Flag for Tile part generation*/
345 /** MCT (multiple component transform) */
350 Decompression parameters
352 typedef struct opj_dparameters {
354 Set the number of highest resolution levels to be discarded.
355 The image resolution is effectively divided by 2 to the power of the number of discarded levels.
356 The reduce factor is limited by the smallest total number of decomposition levels among tiles.
357 if != 0, then original dimension divided by 2^(reduce);
358 if == 0 or not used, image is decoded to the full resolution
362 Set the maximum number of quality layers to decode.
363 If there are less quality layers than the specified number, all the quality layers are decoded.
364 if != 0, then only the first "layer" layers are decoded;
365 if == 0 or not used, all the quality layers are decoded
369 /**@name command line encoder parameters (not used inside the library) */
371 /** input file name */
372 char infile[OPJ_PATH_LEN];
373 /** output file name */
374 char outfile[OPJ_PATH_LEN];
375 /** input file format 0: J2K, 1: JP2, 2: JPT */
377 /** output file format 0: PGX, 1: PxM, 2: BMP */
382 /**@name JPWL decoding parameters */
384 /** activates the JPWL correction capabilities */
385 opj_bool jpwl_correct;
386 /** expected number of components */
388 /** maximum number of tiles */
394 Specify whether the decoding should be done on the entire codestream, or be limited to the main header
395 Limiting the decoding to the main header makes it possible to extract the characteristics of the codestream
396 if == NO_LIMITATION, the entire codestream is decoded;
397 if == LIMIT_TO_MAIN_HEADER, only the main header is decoded;
399 OPJ_LIMIT_DECODING cp_limit_decoding;
403 /** Common fields between JPEG-2000 compression and decompression master structs. */
405 #define opj_common_fields \
406 opj_event_mgr_t *event_mgr; /**< pointer to the event manager */\
407 void * client_data; /**< Available for use by application */\
408 opj_bool is_decompressor; /**< So common code can tell which is which */\
409 OPJ_CODEC_FORMAT codec_format; /**< selected codec */\
410 void *j2k_handle; /**< pointer to the J2K codec */\
411 void *jp2_handle; /**< pointer to the JP2 codec */\
412 void *mj2_handle /**< pointer to the MJ2 codec */
414 /* Routines that are to be used by both halves of the library are declared
415 * to receive a pointer to this structure. There are no actual instances of
416 * opj_common_struct_t, only of opj_cinfo_t and opj_dinfo_t.
418 typedef struct opj_common_struct {
419 opj_common_fields; /* Fields common to both master struct types */
420 /* Additional fields follow in an actual opj_cinfo_t or
421 * opj_dinfo_t. All three structs must agree on these
422 * initial fields! (This would be a lot cleaner in C++.)
424 } opj_common_struct_t;
426 typedef opj_common_struct_t * opj_common_ptr;
429 Compression context info
431 typedef struct opj_cinfo {
432 /** Fields shared with opj_dinfo_t */
434 /* other specific fields go here */
438 Decompression context info
440 typedef struct opj_dinfo {
441 /** Fields shared with opj_cinfo_t */
443 /* other specific fields go here */
447 ==========================================================
448 I/O stream typedef definitions
449 ==========================================================
455 /** The stream was opened for reading. */
456 #define OPJ_STREAM_READ 0x0001
457 /** The stream was opened for writing. */
458 #define OPJ_STREAM_WRITE 0x0002
461 Byte input-output stream (CIO)
463 typedef struct opj_cio {
465 opj_common_ptr cinfo;
467 /** open mode (read/write) either OPJ_STREAM_READ or OPJ_STREAM_WRITE */
469 /** pointer to the start of the buffer */
470 unsigned char *buffer;
471 /** buffer size in bytes */
474 /** pointer to the start of the stream */
475 unsigned char *start;
476 /** pointer to the end of the stream */
478 /** pointer to the current position */
483 ==========================================================
484 image typedef definitions
485 ==========================================================
489 Defines a single image component
491 typedef struct opj_image_comp {
492 /** XRsiz: horizontal separation of a sample of ith component with respect to the reference grid */
494 /** YRsiz: vertical separation of a sample of ith component with respect to the reference grid */
500 /** x component offset compared to the whole image */
502 /** y component offset compared to the whole image */
506 /** image depth in bits */
508 /** signed (1) / unsigned (0) */
510 /** number of decoded resolution */
512 /** number of division by 2 of the out image compared to the original size of image */
514 /** image component data */
519 Defines image data and characteristics
521 typedef struct opj_image {
522 /** XOsiz: horizontal offset from the origin of the reference grid to the left side of the image area */
524 /** YOsiz: vertical offset from the origin of the reference grid to the top side of the image area */
526 /** Xsiz: width of the reference grid */
528 /** Ysiz: height of the reference grid */
530 /** number of components in the image */
532 /** color space: sRGB, Greyscale or YUV */
533 OPJ_COLOR_SPACE color_space;
534 /** image components */
535 opj_image_comp_t *comps;
536 /** 'restricted' ICC profile */
537 unsigned char *icc_profile_buf;
538 /** size of ICC profile */
543 Component parameters structure used by the opj_image_create function
545 typedef struct opj_image_comptparm {
546 /** XRsiz: horizontal separation of a sample of ith component with respect to the reference grid */
548 /** YRsiz: vertical separation of a sample of ith component with respect to the reference grid */
554 /** x component offset compared to the whole image */
556 /** y component offset compared to the whole image */
560 /** image depth in bits */
562 /** signed (1) / unsigned (0) */
564 } opj_image_cmptparm_t;
567 ==========================================================
568 Information on the JPEG 2000 codestream
569 ==========================================================
573 Index structure : Information concerning a packet inside tile
575 typedef struct opj_packet_info {
576 /** packet start position (including SOP marker if it exists) */
578 /** end of packet header position (including EPH marker if it exists)*/
580 /** packet end position */
582 /** packet distorsion */
587 Index structure : Information concerning tile-parts
589 typedef struct opj_tp_info {
590 /** start position of tile part */
592 /** end position of tile part header */
594 /** end position of tile part */
596 /** start packet of tile part */
598 /** number of packets of tile part */
603 Index structure : information regarding tiles
605 typedef struct opj_tile_info {
606 /** value of thresh for each layer by tile cfr. Marcela */
608 /** number of tile */
610 /** start position */
612 /** end position of the header */
616 /** precinct number for each resolution level (width) */
618 /** precinct number for each resolution level (height) */
620 /** precinct size (in power of 2), in X for each resolution level */
622 /** precinct size (in power of 2), in Y for each resolution level */
624 /** information concerning packets inside tile */
625 opj_packet_info_t *packet;
626 /** add fixed_quality */
628 /** add fixed_quality */
630 /** number of tile parts */
632 /** information concerning tile parts */
640 typedef struct opj_marker_info_t {
642 unsigned short int type;
643 /** position in codestream */
645 /** length, marker val included */
651 Index structure of the codestream
653 typedef struct opj_codestream_info {
654 /** maximum distortion reduction on the whole image (add for Marcela) */
658 /** writing the packet in the index with t2_encode_packets */
664 /** progression order */
666 /** tile size in x */
668 /** tile size in y */
674 /** number of tiles in X */
676 /** number of tiles in Y */
678 /** component numbers */
680 /** number of layer */
682 /** number of decomposition for each component */
685 /** number of markers */
687 /** list of markers */
688 opj_marker_info_t *marker;
689 /** actual size of markers array */
692 /** main header position */
694 /** main header position */
696 /** codestream's size */
698 /** information regarding tiles inside image */
699 opj_tile_info_t *tile;
700 } opj_codestream_info_t;
708 ==========================================================
710 ==========================================================
713 OPJ_API const char * OPJ_CALLCONV opj_version(void);
716 ==========================================================
717 image functions definitions
718 ==========================================================
723 @param numcmpts number of components
724 @param cmptparms components parameters
725 @param clrspc image color space
726 @return returns a new image structure if successful, returns NULL otherwise
728 OPJ_API opj_image_t* OPJ_CALLCONV opj_image_create(int numcmpts, opj_image_cmptparm_t *cmptparms, OPJ_COLOR_SPACE clrspc);
731 Deallocate any resources associated with an image
732 @param image image to be destroyed
734 OPJ_API void OPJ_CALLCONV opj_image_destroy(opj_image_t *image);
737 ==========================================================
738 stream functions definitions
739 ==========================================================
743 Open and allocate a memory stream for read / write.
744 On reading, the user must provide a buffer containing encoded data. The buffer will be
745 wrapped by the returned CIO handle.
746 On writing, buffer parameters must be set to 0: a buffer will be allocated by the library
747 to contain encoded data.
748 @param cinfo Codec context info
749 @param buffer Reading: buffer address. Writing: NULL
750 @param length Reading: buffer length. Writing: 0
751 @return Returns a CIO handle if successful, returns NULL otherwise
753 OPJ_API opj_cio_t* OPJ_CALLCONV opj_cio_open(opj_common_ptr cinfo, unsigned char *buffer, int length);
756 Close and free a CIO handle
757 @param cio CIO handle to free
759 OPJ_API void OPJ_CALLCONV opj_cio_close(opj_cio_t *cio);
762 Get position in byte stream
763 @param cio CIO handle
764 @return Returns the position in bytes
766 OPJ_API int OPJ_CALLCONV cio_tell(opj_cio_t *cio);
768 Set position in byte stream
769 @param cio CIO handle
770 @param pos Position, in number of bytes, from the beginning of the stream
772 OPJ_API void OPJ_CALLCONV cio_seek(opj_cio_t *cio, int pos);
775 ==========================================================
776 event manager functions definitions
777 ==========================================================
780 OPJ_API opj_event_mgr_t* OPJ_CALLCONV opj_set_event_mgr(opj_common_ptr cinfo, opj_event_mgr_t *event_mgr, void *context);
783 ==========================================================
784 codec functions definitions
785 ==========================================================
788 Creates a J2K/JPT/JP2 decompression structure
789 @param format Decoder to select
790 @return Returns a handle to a decompressor if successful, returns NULL otherwise
792 OPJ_API opj_dinfo_t* OPJ_CALLCONV opj_create_decompress(OPJ_CODEC_FORMAT format);
794 Destroy a decompressor handle
795 @param dinfo decompressor handle to destroy
797 OPJ_API void OPJ_CALLCONV opj_destroy_decompress(opj_dinfo_t *dinfo);
799 Set decoding parameters to default values
800 @param parameters Decompression parameters
802 OPJ_API void OPJ_CALLCONV opj_set_default_decoder_parameters(opj_dparameters_t *parameters);
804 Setup the decoder decoding parameters using user parameters.
805 Decoding parameters are returned in j2k->cp.
806 @param dinfo decompressor handle
807 @param parameters decompression parameters
809 OPJ_API void OPJ_CALLCONV opj_setup_decoder(opj_dinfo_t *dinfo, opj_dparameters_t *parameters);
811 Decode an image from a JPEG-2000 codestream
812 @param dinfo decompressor handle
813 @param cio Input buffer stream
814 @return Returns a decoded image if successful, returns NULL otherwise
816 OPJ_API opj_image_t* OPJ_CALLCONV opj_decode(opj_dinfo_t *dinfo, opj_cio_t *cio);
819 Decode an image from a JPEG-2000 codestream and extract the codestream information
820 @param dinfo decompressor handle
821 @param cio Input buffer stream
822 @param cstr_info Codestream information structure if needed afterwards, NULL otherwise
823 @return Returns a decoded image if successful, returns NULL otherwise
825 OPJ_API opj_image_t* OPJ_CALLCONV opj_decode_with_info(opj_dinfo_t *dinfo, opj_cio_t *cio, opj_codestream_info_t *cstr_info);
827 Creates a J2K/JP2 compression structure
828 @param format Coder to select
829 @return Returns a handle to a compressor if successful, returns NULL otherwise
831 OPJ_API opj_cinfo_t* OPJ_CALLCONV opj_create_compress(OPJ_CODEC_FORMAT format);
833 Destroy a compressor handle
834 @param cinfo compressor handle to destroy
836 OPJ_API void OPJ_CALLCONV opj_destroy_compress(opj_cinfo_t *cinfo);
838 Set encoding parameters to default values, that means :
842 <li>Size of precinct : 2^15 x 2^15 (means 1 precinct)
843 <li>Size of code-block : 64 x 64
844 <li>Number of resolutions: 6
845 <li>No SOP marker in the codestream
846 <li>No EPH marker in the codestream
847 <li>No sub-sampling in x or y direction
848 <li>No mode switch activated
849 <li>Progression order: LRCP
852 <li>No offset of the origin of the image
853 <li>No offset of the origin of the tiles
854 <li>Reversible DWT 5-3
856 @param parameters Compression parameters
858 OPJ_API void OPJ_CALLCONV opj_set_default_encoder_parameters(opj_cparameters_t *parameters);
860 Setup the encoder parameters using the current image and using user parameters.
861 @param cinfo Compressor handle
862 @param parameters Compression parameters
863 @param image Input filled image
865 OPJ_API void OPJ_CALLCONV opj_setup_encoder(opj_cinfo_t *cinfo, opj_cparameters_t *parameters, opj_image_t *image);
867 Encode an image into a JPEG-2000 codestream
868 @param cinfo compressor handle
869 @param cio Output buffer stream
870 @param image Image to encode
871 @param index Depreacted -> Set to NULL. To extract index, used opj_encode_wci()
872 @return Returns true if successful, returns false otherwise
874 OPJ_API opj_bool OPJ_CALLCONV opj_encode(opj_cinfo_t *cinfo, opj_cio_t *cio, opj_image_t *image, char *index);
876 Encode an image into a JPEG-2000 codestream and extract the codestream information
877 @param cinfo compressor handle
878 @param cio Output buffer stream
879 @param image Image to encode
880 @param cstr_info Codestream information structure if needed afterwards, NULL otherwise
881 @return Returns true if successful, returns false otherwise
883 OPJ_API opj_bool OPJ_CALLCONV opj_encode_with_info(opj_cinfo_t *cinfo, opj_cio_t *cio, opj_image_t *image, opj_codestream_info_t *cstr_info);
885 Destroy Codestream information after compression or decompression
886 @param cstr_info Codestream information structure
888 OPJ_API void OPJ_CALLCONV opj_destroy_cstr_info(opj_codestream_info_t *cstr_info);
894 #endif /* OPENJPEG_H */