2 * Copyright (c) 2005, Herve Drolon, FreeImage Team
3 * Copyright (c) 2008;2011-2012, Centre National d'Etudes Spatiales (CNES), France
4 * Copyright (c) 2012, CS Systemes d'Information, France
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
33 #include "opj_includes.h"
36 * Decompression handler.
38 typedef struct opj_decompression
40 /** Main header reading function handler*/
41 OPJ_BOOL (*opj_read_header) ( struct opj_stream_private * cio,
43 opj_image_t **p_image,
44 struct opj_event_mgr * p_manager);
45 /** Decoding function */
46 OPJ_BOOL (*opj_decode) ( void * p_codec,
47 struct opj_stream_private *p_cio,
49 struct opj_event_mgr * p_manager);
51 OPJ_BOOL (*opj_read_tile_header)( void * p_codec,
52 OPJ_UINT32 * p_tile_index,
53 OPJ_UINT32* p_data_size,
54 OPJ_INT32 * p_tile_x0, OPJ_INT32 * p_tile_y0,
55 OPJ_INT32 * p_tile_x1, OPJ_INT32 * p_tile_y1,
56 OPJ_UINT32 * p_nb_comps,
57 OPJ_BOOL * p_should_go_on,
58 struct opj_stream_private *p_cio,
59 struct opj_event_mgr * p_manager);
61 OPJ_BOOL (*opj_decode_tile_data)( void * p_codec,
62 OPJ_UINT32 p_tile_index,
64 OPJ_UINT32 p_data_size,
65 struct opj_stream_private *p_cio,
66 struct opj_event_mgr * p_manager);
67 /** Reading function used after codestream if necessary */
68 OPJ_BOOL (* opj_end_decompress) ( void *p_codec,
69 struct opj_stream_private *cio,
70 struct opj_event_mgr * p_manager);
71 /** Codec destroy function handler*/
72 void (*opj_destroy) (void * p_codec);
73 /** Setup decoder function handler */
74 void (*opj_setup_decoder) (void * p_codec, opj_dparameters_t * p_param);
75 /** Set decode area function handler */
76 OPJ_BOOL (*opj_set_decode_area) ( void * p_codec,
78 OPJ_INT32 p_start_x, OPJ_INT32 p_end_x,
79 OPJ_INT32 p_start_y, OPJ_INT32 p_end_y,
80 struct opj_event_mgr * p_manager);
82 /** Get tile function */
83 OPJ_BOOL (*opj_get_decoded_tile) ( void *p_codec,
84 opj_stream_private_t *p_cio,
86 struct opj_event_mgr * p_manager,
87 OPJ_UINT32 tile_index);
89 /** Set the decoded resolution factor */
90 OPJ_BOOL (*opj_set_decoded_resolution_factor) ( void * p_codec,
91 OPJ_UINT32 res_factor,
92 opj_event_mgr_t * p_manager);
97 * Compression handler. FIXME DOC
99 typedef struct opj_compression
101 OPJ_BOOL (* opj_start_compress) ( void *p_codec,
102 struct opj_stream_private *cio,
103 struct opj_image * p_image,
104 struct opj_event_mgr * p_manager);
106 OPJ_BOOL (* opj_encode) ( void * p_codec,
107 struct opj_stream_private *p_cio,
108 struct opj_event_mgr * p_manager);
110 OPJ_BOOL (* opj_write_tile) ( void * p_codec,
111 OPJ_UINT32 p_tile_index,
113 OPJ_UINT32 p_data_size,
114 struct opj_stream_private * p_cio,
115 struct opj_event_mgr * p_manager);
117 OPJ_BOOL (* opj_end_compress) ( void * p_codec,
118 struct opj_stream_private *p_cio,
119 struct opj_event_mgr * p_manager);
121 void (* opj_destroy) (void * p_codec);
123 void (* opj_setup_encoder) ( void * p_codec,
124 opj_cparameters_t * p_param,
125 struct opj_image * p_image,
126 struct opj_event_mgr * p_manager);
131 * Main codec handler used for compression or decompression.
133 typedef struct opj_codec_private
138 opj_decompression_t m_decompression;
139 opj_compression_t m_compression;
144 opj_event_mgr_t m_event_mgr;
145 /** Flag to indicate if the codec is used to decode or encode*/
146 OPJ_BOOL is_decompressor;
147 void (*opj_dump_codec) (void * p_codec, OPJ_INT32 info_flag, FILE* output_stream);
148 opj_codestream_info_v2_t* (*opj_get_codec_info)(void* p_codec);
149 opj_codestream_index_t* (*opj_get_codec_index)(void* p_codec);
153 /* ---------------------------------------------------------------------- */
154 /* Functions to set the message handlers */
156 OPJ_BOOL OPJ_CALLCONV opj_set_info_handler( opj_codec_t * p_codec,
157 opj_msg_callback p_callback,
160 opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
165 l_codec->m_event_mgr.info_handler = p_callback;
166 l_codec->m_event_mgr.m_info_data = p_user_data;
171 OPJ_BOOL OPJ_CALLCONV opj_set_warning_handler( opj_codec_t * p_codec,
172 opj_msg_callback p_callback,
175 opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
180 l_codec->m_event_mgr.warning_handler = p_callback;
181 l_codec->m_event_mgr.m_warning_data = p_user_data;
186 OPJ_BOOL OPJ_CALLCONV opj_set_error_handler(opj_codec_t * p_codec,
187 opj_msg_callback p_callback,
190 opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
195 l_codec->m_event_mgr.error_handler = p_callback;
196 l_codec->m_event_mgr.m_error_data = p_user_data;
201 /* ---------------------------------------------------------------------- */
203 static OPJ_SIZE_T opj_read_from_file (void * p_buffer, OPJ_SIZE_T p_nb_bytes, FILE * p_file)
205 OPJ_SIZE_T l_nb_read = fread(p_buffer,1,p_nb_bytes,p_file);
206 return l_nb_read ? l_nb_read : (OPJ_SIZE_T)-1;
209 static OPJ_UINT64 opj_get_data_length_from_file (FILE * p_file)
211 OPJ_OFF_T file_length = 0;
213 OPJ_FSEEK(p_file, 0, SEEK_END);
214 file_length = (OPJ_UINT64)OPJ_FTELL(p_file);
215 OPJ_FSEEK(p_file, 0, SEEK_SET);
220 static OPJ_SIZE_T opj_write_from_file (void * p_buffer, OPJ_SIZE_T p_nb_bytes, FILE * p_file)
222 return fwrite(p_buffer,1,p_nb_bytes,p_file);
225 static OPJ_OFF_T opj_skip_from_file (OPJ_OFF_T p_nb_bytes, FILE * p_user_data)
227 if (OPJ_FSEEK(p_user_data,p_nb_bytes,SEEK_CUR)) {
234 static OPJ_BOOL opj_seek_from_file (OPJ_OFF_T p_nb_bytes, FILE * p_user_data)
236 if (OPJ_FSEEK(p_user_data,p_nb_bytes,SEEK_SET)) {
243 /* ---------------------------------------------------------------------- */
247 DllMain(HANDLE hModule, DWORD ul_reason_for_call, LPVOID lpReserved) {
249 OPJ_ARG_NOT_USED(lpReserved);
250 OPJ_ARG_NOT_USED(hModule);
252 switch (ul_reason_for_call) {
253 case DLL_PROCESS_ATTACH :
255 case DLL_PROCESS_DETACH :
257 case DLL_THREAD_ATTACH :
258 case DLL_THREAD_DETACH :
264 #endif /* OPJ_STATIC */
267 /* ---------------------------------------------------------------------- */
269 const char* OPJ_CALLCONV opj_version(void) {
270 return OPJ_PACKAGE_VERSION;
273 /* ---------------------------------------------------------------------- */
274 /* DECOMPRESSION FUNCTIONS*/
276 opj_codec_t* OPJ_CALLCONV opj_create_decompress(OPJ_CODEC_FORMAT p_format)
278 opj_codec_private_t *l_codec = 00;
280 l_codec = (opj_codec_private_t*) opj_calloc(1, sizeof(opj_codec_private_t));
284 memset(l_codec, 0, sizeof(opj_codec_private_t));
286 l_codec->is_decompressor = 1;
290 l_codec->opj_dump_codec = (void (*) (void*, OPJ_INT32, FILE*)) j2k_dump;
292 l_codec->opj_get_codec_info = (opj_codestream_info_v2_t* (*) (void*) ) j2k_get_cstr_info;
294 l_codec->opj_get_codec_index = (opj_codestream_index_t* (*) (void*) ) j2k_get_cstr_index;
296 l_codec->m_codec_data.m_decompression.opj_decode =
297 (OPJ_BOOL (*) ( void *,
298 struct opj_stream_private *,
299 opj_image_t*, struct opj_event_mgr * )) opj_j2k_decode;
301 l_codec->m_codec_data.m_decompression.opj_end_decompress =
302 (OPJ_BOOL (*) ( void *,
303 struct opj_stream_private *,
304 struct opj_event_mgr *)) opj_j2k_end_decompress;
306 l_codec->m_codec_data.m_decompression.opj_read_header =
307 (OPJ_BOOL (*) ( struct opj_stream_private *,
310 struct opj_event_mgr * )) opj_j2k_read_header;
312 l_codec->m_codec_data.m_decompression.opj_destroy =
313 (void (*) (void *))opj_j2k_destroy;
315 l_codec->m_codec_data.m_decompression.opj_setup_decoder =
316 (void (*) (void * , opj_dparameters_t * )) opj_j2k_setup_decoder;
318 l_codec->m_codec_data.m_decompression.opj_read_tile_header =
319 (OPJ_BOOL (*) ( void *,
322 OPJ_INT32*, OPJ_INT32*,
323 OPJ_INT32*, OPJ_INT32*,
326 struct opj_stream_private *,
327 struct opj_event_mgr * )) opj_j2k_read_tile_header;
329 l_codec->m_codec_data.m_decompression.opj_decode_tile_data =
330 (OPJ_BOOL (*) ( void *,
334 struct opj_stream_private *,
335 struct opj_event_mgr *)) opj_j2k_decode_tile;
337 l_codec->m_codec_data.m_decompression.opj_set_decode_area =
338 (OPJ_BOOL (*) ( void *,
340 OPJ_INT32, OPJ_INT32, OPJ_INT32, OPJ_INT32,
341 struct opj_event_mgr *)) opj_j2k_set_decode_area;
343 l_codec->m_codec_data.m_decompression.opj_get_decoded_tile =
344 (OPJ_BOOL (*) ( void *p_codec,
345 opj_stream_private_t *p_cio,
346 opj_image_t *p_image,
347 struct opj_event_mgr * p_manager,
348 OPJ_UINT32 tile_index)) opj_j2k_get_tile;
350 l_codec->m_codec_data.m_decompression.opj_set_decoded_resolution_factor =
351 (OPJ_BOOL (*) ( void * p_codec,
352 OPJ_UINT32 res_factor,
353 struct opj_event_mgr * p_manager)) opj_j2k_set_decoded_resolution_factor;
355 l_codec->m_codec = opj_j2k_create_decompress();
357 if (! l_codec->m_codec) {
365 /* get a JP2 decoder handle */
366 l_codec->opj_dump_codec = (void (*) (void*, OPJ_INT32, FILE*)) jp2_dump;
368 l_codec->opj_get_codec_info = (opj_codestream_info_v2_t* (*) (void*) ) jp2_get_cstr_info;
370 l_codec->opj_get_codec_index = (opj_codestream_index_t* (*) (void*) ) jp2_get_cstr_index;
372 l_codec->m_codec_data.m_decompression.opj_decode =
373 (OPJ_BOOL (*) ( void *,
374 struct opj_stream_private *,
376 struct opj_event_mgr * )) opj_jp2_decode;
378 l_codec->m_codec_data.m_decompression.opj_end_decompress =
379 (OPJ_BOOL (*) ( void *,
380 struct opj_stream_private *,
381 struct opj_event_mgr *)) opj_jp2_end_decompress;
383 l_codec->m_codec_data.m_decompression.opj_read_header =
384 (OPJ_BOOL (*) ( struct opj_stream_private *,
387 struct opj_event_mgr * )) opj_jp2_read_header;
389 l_codec->m_codec_data.m_decompression.opj_read_tile_header =
390 (OPJ_BOOL (*) ( void *,
399 struct opj_stream_private *,
400 struct opj_event_mgr * )) opj_jp2_read_tile_header;
402 l_codec->m_codec_data.m_decompression.opj_decode_tile_data =
403 (OPJ_BOOL (*) ( void *,
404 OPJ_UINT32,OPJ_BYTE*,OPJ_UINT32,
405 struct opj_stream_private *,
406 struct opj_event_mgr * )) opj_jp2_decode_tile;
408 l_codec->m_codec_data.m_decompression.opj_destroy = (void (*) (void *))opj_jp2_destroy;
410 l_codec->m_codec_data.m_decompression.opj_setup_decoder =
411 (void (*) (void * ,opj_dparameters_t * )) opj_jp2_setup_decoder;
413 l_codec->m_codec_data.m_decompression.opj_set_decode_area =
414 (OPJ_BOOL (*) ( void *,
416 OPJ_INT32,OPJ_INT32,OPJ_INT32,OPJ_INT32,
417 struct opj_event_mgr * )) opj_jp2_set_decode_area;
419 l_codec->m_codec_data.m_decompression.opj_get_decoded_tile =
420 (OPJ_BOOL (*) ( void *p_codec,
421 opj_stream_private_t *p_cio,
422 opj_image_t *p_image,
423 struct opj_event_mgr * p_manager,
424 OPJ_UINT32 tile_index)) opj_jp2_get_tile;
426 l_codec->m_codec_data.m_decompression.opj_set_decoded_resolution_factor =
427 (OPJ_BOOL (*) ( void * p_codec,
428 OPJ_UINT32 res_factor,
429 opj_event_mgr_t * p_manager)) opj_jp2_set_decoded_resolution_factor;
431 l_codec->m_codec = opj_jp2_create(OPJ_TRUE);
433 if (! l_codec->m_codec) {
439 case OPJ_CODEC_UNKNOWN:
446 opj_set_default_event_handler(&(l_codec->m_event_mgr));
447 return (opj_codec_t*) l_codec;
450 void OPJ_CALLCONV opj_set_default_decoder_parameters(opj_dparameters_t *parameters) {
452 memset(parameters, 0, sizeof(opj_dparameters_t));
453 /* default decoding parameters */
454 parameters->cp_layer = 0;
455 parameters->cp_reduce = 0;
457 parameters->decod_format = -1;
458 parameters->cod_format = -1;
459 parameters->flags = 0;
462 parameters->jpwl_correct = OPJ_FALSE;
463 parameters->jpwl_exp_comps = JPWL_EXPECTED_COMPONENTS;
464 parameters->jpwl_max_tiles = JPWL_MAXIMUM_TILES;
465 #endif /* USE_JPWL */
470 OPJ_BOOL OPJ_CALLCONV opj_setup_decoder(opj_codec_t *p_codec,
471 opj_dparameters_t *parameters
474 if (p_codec && parameters) {
475 opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
477 if (! l_codec->is_decompressor) {
478 opj_event_msg(&(l_codec->m_event_mgr), EVT_ERROR,
479 "Codec provided to the opj_setup_decoder function is not a decompressor handler.\n");
483 l_codec->m_codec_data.m_decompression.opj_setup_decoder(l_codec->m_codec,
490 OPJ_BOOL OPJ_CALLCONV opj_read_header ( opj_stream_t *p_stream,
491 opj_codec_t *p_codec,
492 opj_image_t **p_image )
494 if (p_codec && p_stream) {
495 opj_codec_private_t* l_codec = (opj_codec_private_t*) p_codec;
496 opj_stream_private_t* l_stream = (opj_stream_private_t*) p_stream;
498 if(! l_codec->is_decompressor) {
499 opj_event_msg(&(l_codec->m_event_mgr), EVT_ERROR,
500 "Codec provided to the opj_read_header function is not a decompressor handler.\n");
504 return l_codec->m_codec_data.m_decompression.opj_read_header( l_stream,
507 &(l_codec->m_event_mgr) );
513 OPJ_BOOL OPJ_CALLCONV opj_decode( opj_codec_t *p_codec,
514 opj_stream_t *p_stream,
515 opj_image_t* p_image)
517 if (p_codec && p_stream) {
518 opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
519 opj_stream_private_t * l_stream = (opj_stream_private_t *) p_stream;
521 if (! l_codec->is_decompressor) {
525 return l_codec->m_codec_data.m_decompression.opj_decode(l_codec->m_codec,
528 &(l_codec->m_event_mgr) );
534 OPJ_BOOL OPJ_CALLCONV opj_set_decode_area( opj_codec_t *p_codec,
535 opj_image_t* p_image,
536 OPJ_INT32 p_start_x, OPJ_INT32 p_start_y,
537 OPJ_INT32 p_end_x, OPJ_INT32 p_end_y
541 opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
543 if (! l_codec->is_decompressor) {
547 return l_codec->m_codec_data.m_decompression.opj_set_decode_area( l_codec->m_codec,
549 p_start_x, p_start_y,
551 &(l_codec->m_event_mgr) );
556 OPJ_BOOL OPJ_CALLCONV opj_read_tile_header( opj_codec_t *p_codec,
557 opj_stream_t * p_stream,
558 OPJ_UINT32 * p_tile_index,
559 OPJ_UINT32 * p_data_size,
560 OPJ_INT32 * p_tile_x0, OPJ_INT32 * p_tile_y0,
561 OPJ_INT32 * p_tile_x1, OPJ_INT32 * p_tile_y1,
562 OPJ_UINT32 * p_nb_comps,
563 OPJ_BOOL * p_should_go_on)
565 if (p_codec && p_stream && p_data_size && p_tile_index) {
566 opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
567 opj_stream_private_t * l_stream = (opj_stream_private_t *) p_stream;
569 if (! l_codec->is_decompressor) {
573 return l_codec->m_codec_data.m_decompression.opj_read_tile_header( l_codec->m_codec,
576 p_tile_x0, p_tile_y0,
577 p_tile_x1, p_tile_y1,
581 &(l_codec->m_event_mgr));
586 OPJ_BOOL OPJ_CALLCONV opj_decode_tile_data( opj_codec_t *p_codec,
587 OPJ_UINT32 p_tile_index,
589 OPJ_UINT32 p_data_size,
590 opj_stream_t *p_stream
593 if (p_codec && p_data && p_stream) {
594 opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
595 opj_stream_private_t * l_stream = (opj_stream_private_t *) p_stream;
597 if (! l_codec->is_decompressor) {
601 return l_codec->m_codec_data.m_decompression.opj_decode_tile_data( l_codec->m_codec,
606 &(l_codec->m_event_mgr) );
611 OPJ_BOOL OPJ_CALLCONV opj_get_decoded_tile( opj_codec_t *p_codec,
612 opj_stream_t *p_stream,
613 opj_image_t *p_image,
614 OPJ_UINT32 tile_index)
616 if (p_codec && p_stream) {
617 opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
618 opj_stream_private_t * l_stream = (opj_stream_private_t *) p_stream;
620 if (! l_codec->is_decompressor) {
624 return l_codec->m_codec_data.m_decompression.opj_get_decoded_tile( l_codec->m_codec,
627 &(l_codec->m_event_mgr),
634 OPJ_BOOL OPJ_CALLCONV opj_set_decoded_resolution_factor(opj_codec_t *p_codec,
635 OPJ_UINT32 res_factor )
637 opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
640 fprintf(stderr, "[ERROR] Input parameters of the setup_decoder function are incorrect.\n");
644 l_codec->m_codec_data.m_decompression.opj_set_decoded_resolution_factor(l_codec->m_codec,
646 &(l_codec->m_event_mgr) );
650 /* ---------------------------------------------------------------------- */
651 /* COMPRESSION FUNCTIONS*/
653 opj_codec_t* OPJ_CALLCONV opj_create_compress(OPJ_CODEC_FORMAT p_format)
655 opj_codec_private_t *l_codec = 00;
657 l_codec = (opj_codec_private_t*)opj_calloc(1, sizeof(opj_codec_private_t));
661 memset(l_codec, 0, sizeof(opj_codec_private_t));
663 l_codec->is_decompressor = 0;
667 l_codec->m_codec_data.m_compression.opj_encode = (OPJ_BOOL (*) (void *,
668 struct opj_stream_private *,
669 struct opj_event_mgr * )) opj_j2k_encode;
671 l_codec->m_codec_data.m_compression.opj_end_compress = (OPJ_BOOL (*) ( void *,
672 struct opj_stream_private *,
673 struct opj_event_mgr *)) opj_j2k_end_compress;
675 l_codec->m_codec_data.m_compression.opj_start_compress = (OPJ_BOOL (*) (void *,
676 struct opj_stream_private *,
678 struct opj_event_mgr *)) opj_j2k_start_compress;
680 l_codec->m_codec_data.m_compression.opj_write_tile = (OPJ_BOOL (*) (void *,
684 struct opj_stream_private *,
685 struct opj_event_mgr *) ) opj_j2k_write_tile;
687 l_codec->m_codec_data.m_compression.opj_destroy = (void (*) (void *)) opj_j2k_destroy;
689 l_codec->m_codec_data.m_compression.opj_setup_encoder = (void (*) ( void *,
692 struct opj_event_mgr * )) opj_j2k_setup_encoder;
694 l_codec->m_codec = opj_j2k_create_compress();
695 if (! l_codec->m_codec) {
703 /* get a JP2 decoder handle */
704 l_codec->m_codec_data.m_compression.opj_encode = (OPJ_BOOL (*) (void *,
705 struct opj_stream_private *,
706 struct opj_event_mgr * )) opj_jp2_encode;
708 l_codec->m_codec_data.m_compression.opj_end_compress = (OPJ_BOOL (*) ( void *,
709 struct opj_stream_private *,
710 struct opj_event_mgr *)) opj_jp2_end_compress;
712 l_codec->m_codec_data.m_compression.opj_start_compress = (OPJ_BOOL (*) (void *,
713 struct opj_stream_private *,
715 struct opj_event_mgr *)) opj_jp2_start_compress;
717 l_codec->m_codec_data.m_compression.opj_write_tile = (OPJ_BOOL (*) (void *,
721 struct opj_stream_private *,
722 struct opj_event_mgr *)) opj_jp2_write_tile;
724 l_codec->m_codec_data.m_compression.opj_destroy = (void (*) (void *)) opj_jp2_destroy;
726 l_codec->m_codec_data.m_compression.opj_setup_encoder = (void (*) ( void *,
729 struct opj_event_mgr * )) opj_jp2_setup_encoder;
731 l_codec->m_codec = opj_jp2_create(OPJ_FALSE);
732 if (! l_codec->m_codec) {
739 case OPJ_CODEC_UNKNOWN:
746 opj_set_default_event_handler(&(l_codec->m_event_mgr));
747 return (opj_codec_t*) l_codec;
750 void OPJ_CALLCONV opj_set_default_encoder_parameters(opj_cparameters_t *parameters) {
752 memset(parameters, 0, sizeof(opj_cparameters_t));
753 /* default coding parameters */
754 parameters->cp_cinema = OPJ_OFF;
755 parameters->max_comp_size = 0;
756 parameters->numresolution = 6;
757 parameters->cp_rsiz = OPJ_STD_RSIZ;
758 parameters->cblockw_init = 64;
759 parameters->cblockh_init = 64;
760 parameters->prog_order = OPJ_LRCP;
761 parameters->roi_compno = -1; /* no ROI */
762 parameters->subsampling_dx = 1;
763 parameters->subsampling_dy = 1;
764 parameters->tp_on = 0;
765 parameters->decod_format = -1;
766 parameters->cod_format = -1;
767 parameters->tcp_rates[0] = 0;
768 parameters->tcp_numlayers = 0;
769 parameters->cp_disto_alloc = 0;
770 parameters->cp_fixed_alloc = 0;
771 parameters->cp_fixed_quality = 0;
772 parameters->jpip_on = OPJ_FALSE;
775 parameters->jpwl_epc_on = OPJ_FALSE;
776 parameters->jpwl_hprot_MH = -1; /* -1 means unassigned */
779 for (i = 0; i < JPWL_MAX_NO_TILESPECS; i++) {
780 parameters->jpwl_hprot_TPH_tileno[i] = -1; /* unassigned */
781 parameters->jpwl_hprot_TPH[i] = 0; /* absent */
786 for (i = 0; i < JPWL_MAX_NO_PACKSPECS; i++) {
787 parameters->jpwl_pprot_tileno[i] = -1; /* unassigned */
788 parameters->jpwl_pprot_packno[i] = -1; /* unassigned */
789 parameters->jpwl_pprot[i] = 0; /* absent */
792 parameters->jpwl_sens_size = 0; /* 0 means no ESD */
793 parameters->jpwl_sens_addr = 0; /* 0 means auto */
794 parameters->jpwl_sens_range = 0; /* 0 means packet */
795 parameters->jpwl_sens_MH = -1; /* -1 means unassigned */
798 for (i = 0; i < JPWL_MAX_NO_TILESPECS; i++) {
799 parameters->jpwl_sens_TPH_tileno[i] = -1; /* unassigned */
800 parameters->jpwl_sens_TPH[i] = -1; /* absent */
803 #endif /* USE_JPWL */
808 OPJ_BOOL OPJ_CALLCONV opj_setup_encoder(opj_codec_t *p_codec,
809 opj_cparameters_t *parameters,
810 opj_image_t *p_image)
812 if (p_codec && parameters && p_image) {
813 opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
815 if (! l_codec->is_decompressor) {
816 l_codec->m_codec_data.m_compression.opj_setup_encoder( l_codec->m_codec,
819 &(l_codec->m_event_mgr) );
827 OPJ_BOOL OPJ_CALLCONV opj_start_compress ( opj_codec_t *p_codec,
828 opj_image_t * p_image,
829 opj_stream_t *p_stream)
831 if (p_codec && p_stream) {
832 opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
833 opj_stream_private_t * l_stream = (opj_stream_private_t *) p_stream;
835 if (! l_codec->is_decompressor) {
836 return l_codec->m_codec_data.m_compression.opj_start_compress( l_codec->m_codec,
839 &(l_codec->m_event_mgr));
846 OPJ_BOOL OPJ_CALLCONV opj_encode(opj_codec_t *p_info, opj_stream_t *p_stream)
848 if (p_info && p_stream) {
849 opj_codec_private_t * l_codec = (opj_codec_private_t *) p_info;
850 opj_stream_private_t * l_stream = (opj_stream_private_t *) p_stream;
852 if (! l_codec->is_decompressor) {
853 return l_codec->m_codec_data.m_compression.opj_encode( l_codec->m_codec,
855 &(l_codec->m_event_mgr));
863 OPJ_BOOL OPJ_CALLCONV opj_end_compress (opj_codec_t *p_codec,
864 opj_stream_t *p_stream)
866 if (p_codec && p_stream) {
867 opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
868 opj_stream_private_t * l_stream = (opj_stream_private_t *) p_stream;
870 if (! l_codec->is_decompressor) {
871 return l_codec->m_codec_data.m_compression.opj_end_compress(l_codec->m_codec,
873 &(l_codec->m_event_mgr));
880 OPJ_BOOL OPJ_CALLCONV opj_end_decompress ( opj_codec_t *p_codec,
881 opj_stream_t *p_stream)
883 if (p_codec && p_stream) {
884 opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
885 opj_stream_private_t * l_stream = (opj_stream_private_t *) p_stream;
887 if (! l_codec->is_decompressor) {
891 return l_codec->m_codec_data.m_decompression.opj_end_decompress(l_codec->m_codec,
893 &(l_codec->m_event_mgr) );
899 OPJ_BOOL OPJ_CALLCONV opj_set_MCT(opj_cparameters_t *parameters,
900 OPJ_FLOAT32 * pEncodingMatrix,
901 OPJ_INT32 * p_dc_shift,OPJ_UINT32 pNbComp)
903 OPJ_UINT32 l_matrix_size = pNbComp * pNbComp * (OPJ_UINT32)sizeof(OPJ_FLOAT32);
904 OPJ_UINT32 l_dc_shift_size = pNbComp * (OPJ_UINT32)sizeof(OPJ_INT32);
905 OPJ_UINT32 l_mct_total_size = l_matrix_size + l_dc_shift_size;
907 /* add MCT capability */
908 OPJ_INT32 rsiz = (OPJ_INT32)parameters->cp_rsiz | (OPJ_INT32)OPJ_MCT;
909 parameters->cp_rsiz = (OPJ_RSIZ_CAPABILITIES)rsiz;
910 parameters->irreversible = 1;
912 /* use array based MCT */
913 parameters->tcp_mct = 2;
914 parameters->mct_data = opj_malloc(l_mct_total_size);
915 if (! parameters->mct_data) {
919 memcpy(parameters->mct_data,pEncodingMatrix,l_matrix_size);
920 memcpy(((OPJ_BYTE *) parameters->mct_data) + l_matrix_size,p_dc_shift,l_dc_shift_size);
925 OPJ_BOOL OPJ_CALLCONV opj_write_tile ( opj_codec_t *p_codec,
926 OPJ_UINT32 p_tile_index,
928 OPJ_UINT32 p_data_size,
929 opj_stream_t *p_stream )
931 if (p_codec && p_stream && p_data) {
932 opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
933 opj_stream_private_t * l_stream = (opj_stream_private_t *) p_stream;
935 if (l_codec->is_decompressor) {
939 return l_codec->m_codec_data.m_compression.opj_write_tile( l_codec->m_codec,
944 &(l_codec->m_event_mgr) );
950 /* ---------------------------------------------------------------------- */
952 void OPJ_CALLCONV opj_destroy_codec(opj_codec_t *p_codec)
955 opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
957 if (l_codec->is_decompressor) {
958 l_codec->m_codec_data.m_decompression.opj_destroy(l_codec->m_codec);
961 l_codec->m_codec_data.m_compression.opj_destroy(l_codec->m_codec);
964 l_codec->m_codec = 00;
969 /* ---------------------------------------------------------------------- */
971 void OPJ_CALLCONV opj_dump_codec( opj_codec_t *p_codec,
976 opj_codec_private_t* l_codec = (opj_codec_private_t*) p_codec;
978 l_codec->opj_dump_codec(l_codec->m_codec, info_flag, output_stream);
982 fprintf(stderr, "[ERROR] Input parameter of the dump_codec function are incorrect.\n");
986 opj_codestream_info_v2_t* OPJ_CALLCONV opj_get_cstr_info(opj_codec_t *p_codec)
989 opj_codec_private_t* l_codec = (opj_codec_private_t*) p_codec;
991 return l_codec->opj_get_codec_info(l_codec->m_codec);
997 void OPJ_CALLCONV opj_destroy_cstr_info(opj_codestream_info_v2_t **cstr_info) {
1000 if ((*cstr_info)->m_default_tile_info.tccp_info){
1001 opj_free((*cstr_info)->m_default_tile_info.tccp_info);
1004 if ((*cstr_info)->tile_info){
1005 /* FIXME not used for the moment*/
1008 opj_free((*cstr_info));
1009 (*cstr_info) = NULL;
1013 opj_codestream_index_t * OPJ_CALLCONV opj_get_cstr_index(opj_codec_t *p_codec)
1016 opj_codec_private_t* l_codec = (opj_codec_private_t*) p_codec;
1018 return l_codec->opj_get_codec_index(l_codec->m_codec);
1024 void OPJ_CALLCONV opj_destroy_cstr_index(opj_codestream_index_t **p_cstr_index)
1027 j2k_destroy_cstr_index(*p_cstr_index);
1028 (*p_cstr_index) = NULL;
1032 opj_stream_t* OPJ_CALLCONV opj_stream_create_default_file_stream_v3 (const char *fname, OPJ_BOOL p_is_read_stream)
1034 return opj_stream_create_file_stream_v3(fname, OPJ_J2K_STREAM_CHUNK_SIZE, p_is_read_stream);
1037 opj_stream_t* OPJ_CALLCONV opj_stream_create_file_stream_v3 (
1040 OPJ_BOOL p_is_read_stream)
1042 opj_stream_t* l_stream = 00;
1050 if(p_is_read_stream) mode = "rb"; else mode = "wb";
1052 p_file = fopen(fname, mode);
1058 l_stream = opj_stream_create(p_size,p_is_read_stream);
1064 opj_stream_set_user_data(l_stream, p_file);
1065 opj_stream_set_user_data_length(l_stream, opj_get_data_length_from_file(p_file));
1066 opj_stream_set_read_function(l_stream, (opj_stream_read_fn) opj_read_from_file);
1067 opj_stream_set_write_function(l_stream, (opj_stream_write_fn) opj_write_from_file);
1068 opj_stream_set_skip_function(l_stream, (opj_stream_skip_fn) opj_skip_from_file);
1069 opj_stream_set_seek_function(l_stream, (opj_stream_seek_fn) opj_seek_from_file);