codec/j2k_to_image.c

   1 /*
   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
   9  * All rights reserved.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  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.
  19  *
  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.
  31  */
  32 #include <stdio.h>
  33 #include <string.h>
  34 #include <stdlib.h>
  35
  36 #include "openjpeg.h"
  37 #include "compat/getopt.h"
  38 #include "convert.h"
  39 #include "dirent.h"
  40
  41 #ifndef WIN32
  42 #define stricmp strcasecmp
  43 #define strnicmp strncasecmp
  44 #endif
  45
  46 /* ----------------------------------------------------------------------- */
  47
  48 #define J2K_CFMT 0
  49 #define JP2_CFMT 1
  50 #define JPT_CFMT 2
  51
  52 #define PXM_DFMT 10
  53 #define PGX_DFMT 11
  54 #define BMP_DFMT 12
  55 #define YUV_DFMT 13
  56 #define TIF_DFMT 14
  57 #define RAW_DFMT 15
  58 #define TGA_DFMT 16
  59
  60 /* ----------------------------------------------------------------------- */
  61
  62 typedef struct dircnt{
  63         /** Buffer for holding images read from Directory*/
  64         char *filename_buf;
  65         /** Pointer to the buffer*/
  66         char **filename;
  67 }dircnt_t;
  68
  69
  70 typedef struct img_folder{
  71         /** The directory path of the folder containing input images*/
  72         char *imgdirpath;
  73         /** Output format*/
  74         char *out_format;
  75         /** Enable option*/
  76         char set_imgdir;
  77         /** Enable Cod Format for output*/
  78         char set_out_format;
  79
  80 }img_fol_t;
  81
  82 void decode_help_display() {
  83         fprintf(stdout,"HELP\n----\n\n");
  84         fprintf(stdout,"- the -h option displays this help information on screen\n\n");
  85
  86 /* UniPG>> */
  87         fprintf(stdout,"List of parameters for the JPEG 2000 "
  88 #ifdef USE_JPWL
  89                 "+ JPWL "
  90 #endif /* USE_JPWL */
  91                 "decoder:\n");
  92 /* <<UniPG */
  93         fprintf(stdout,"\n");
  94         fprintf(stdout,"\n");
  95         fprintf(stdout,"  -ImgDir \n");
  96         fprintf(stdout,"        Image file Directory path \n");
  97         fprintf(stdout,"  -OutFor \n");
  98         fprintf(stdout,"    REQUIRED only if -ImgDir is used\n");
  99         fprintf(stdout,"          Need to specify only format without filename <BMP>  \n");
 100         fprintf(stdout,"    Currently accepts PGM, PPM, PNM, PGX, BMP, TIF, RAW and TGA formats\n");
 101         fprintf(stdout,"  -i <compressed file>\n");
 102         fprintf(stdout,"    REQUIRED only if an Input image directory not specified\n");
 103         fprintf(stdout,"    Currently accepts J2K-files, JP2-files and JPT-files. The file type\n");
 104         fprintf(stdout,"    is identified based on its suffix.\n");
 105         fprintf(stdout,"  -o <decompressed file>\n");
 106         fprintf(stdout,"    REQUIRED\n");
 107         fprintf(stdout,"    Currently accepts PGM, PPM, PNM, PGX, BMP, TIF, RAW and TGA files\n");
 108         fprintf(stdout,"    Binary data is written to the file (not ascii). If a PGX\n");
 109         fprintf(stdout,"    filename is given, there will be as many output files as there are\n");
 110         fprintf(stdout,"    components: an indice starting from 0 will then be appended to the\n");
 111         fprintf(stdout,"    output filename, just before the \"pgx\" extension. If a PGM filename\n");
 112         fprintf(stdout,"    is given and there are more than one component, only the first component\n");
 113         fprintf(stdout,"    will be written to the file.\n");
 114         fprintf(stdout,"  -r <reduce factor>\n");
 115         fprintf(stdout,"    Set the number of highest resolution levels to be discarded. The\n");
 116         fprintf(stdout,"    image resolution is effectively divided by 2 to the power of the\n");
 117         fprintf(stdout,"    number of discarded levels. The reduce factor is limited by the\n");
 118         fprintf(stdout,"    smallest total number of decomposition levels among tiles.\n");
 119         fprintf(stdout,"  -l <number of quality layers to decode>\n");
 120         fprintf(stdout,"    Set the maximum number of quality layers to decode. If there are\n");
 121         fprintf(stdout,"    less quality layers than the specified number, all the quality layers\n");
 122         fprintf(stdout,"    are decoded.\n");
 123 /* UniPG>> */
 124 #ifdef USE_JPWL
 125         fprintf(stdout,"  -W <options>\n");
 126         fprintf(stdout,"    Activates the JPWL correction capability, if the codestream complies.\n");
 127         fprintf(stdout,"    Options can be a comma separated list of <param=val> tokens:\n");
 128         fprintf(stdout,"    c, c=numcomps\n");
 129         fprintf(stdout,"       numcomps is the number of expected components in the codestream\n");
 130         fprintf(stdout,"       (search of first EPB rely upon this, default is %d)\n", JPWL_EXPECTED_COMPONENTS);
 131 #endif /* USE_JPWL */
 132 /* <<UniPG */
 133         fprintf(stdout,"\n");
 134 }
 135
 136 /* -------------------------------------------------------------------------- */
 137
 138 int get_num_images(char *imgdirpath){
 139         DIR *dir;
 140         struct dirent* content;
 141         int num_images = 0;
 142
 143         /*Reading the input images from given input directory*/
 144
 145         dir= opendir(imgdirpath);
 146         if(!dir){
 147                 fprintf(stderr,"Could not open Folder %s\n",imgdirpath);
 148                 return 0;
 149         }
 150
 151         while((content=readdir(dir))!=NULL){
 152                 if(strcmp(".",content->d_name)==0 || strcmp("..",content->d_name)==0 )
 153                         continue;
 154                 num_images++;
 155         }
 156         return num_images;
 157 }
 158
 159 int load_images(dircnt_t *dirptr, char *imgdirpath){
 160         DIR *dir;
 161         struct dirent* content;
 162         int i = 0;
 163
 164         /*Reading the input images from given input directory*/
 165
 166         dir= opendir(imgdirpath);
 167         if(!dir){
 168                 fprintf(stderr,"Could not open Folder %s\n",imgdirpath);
 169                 return 1;
 170         }else   {
 171                 fprintf(stderr,"Folder opened successfully\n");
 172         }
 173
 174         while((content=readdir(dir))!=NULL){
 175                 if(strcmp(".",content->d_name)==0 || strcmp("..",content->d_name)==0 )
 176                         continue;
 177
 178                 strcpy(dirptr->filename[i],content->d_name);
 179                 i++;
 180         }
 181         return 0;
 182 }
 183
 184 int get_file_format(char *filename) {
 185         unsigned int i;
 186         static const char *extension[] = {"pgx", "pnm", "pgm", "ppm", "bmp","tif", "raw", "tga", "j2k", "jp2", "jpt", "j2c" };
 187         static const int format[] = { PGX_DFMT, PXM_DFMT, PXM_DFMT, PXM_DFMT, BMP_DFMT, TIF_DFMT, RAW_DFMT, TGA_DFMT, J2K_CFMT, JP2_CFMT, JPT_CFMT, J2K_CFMT };
 188         char * ext = strrchr(filename, '.');
 189         if (ext == NULL)
 190                 return -1;
 191         ext++;
 192         if(ext) {
 193                 for(i = 0; i < sizeof(format)/sizeof(*format); i++) {
 194                         if(strnicmp(ext, extension[i], 3) == 0) {
 195                                 return format[i];
 196                         }
 197                 }
 198         }
 199
 200         return -1;
 201 }
 202
 203 char get_next_file(int imageno,dircnt_t *dirptr,img_fol_t *img_fol, opj_dparameters_t *parameters){
 204         char image_filename[OPJ_PATH_LEN], infilename[OPJ_PATH_LEN],outfilename[OPJ_PATH_LEN],temp_ofname[OPJ_PATH_LEN];
 205         char *temp_p, temp1[OPJ_PATH_LEN]="";
 206
 207         strcpy(image_filename,dirptr->filename[imageno]);
 208         fprintf(stderr,"File Number %d \"%s\"\n",imageno,image_filename);
 209         parameters->decod_format = get_file_format(image_filename);
 210         if (parameters->decod_format == -1)
 211                 return 1;
 212         sprintf(infilename,"%s/%s",img_fol->imgdirpath,image_filename);
 213         strncpy(parameters->infile, infilename, sizeof(infilename));
 214
 215         //Set output file
 216         strcpy(temp_ofname,strtok(image_filename,"."));
 217         while((temp_p = strtok(NULL,".")) != NULL){
 218                 strcat(temp_ofname,temp1);
 219                 sprintf(temp1,".%s",temp_p);
 220         }
 221         if(img_fol->set_out_format==1){
 222                 sprintf(outfilename,"%s/%s.%s",img_fol->imgdirpath,temp_ofname,img_fol->out_format);
 223                 strncpy(parameters->outfile, outfilename, sizeof(outfilename));
 224         }
 225         return 0;
 226 }
 227
 228
 229 /* -------------------------------------------------------------------------- */
 230
 231 int parse_cmdline_decoder(int argc, char **argv, opj_dparameters_t *parameters,img_fol_t *img_fol) {
 232         /* parse the command line */
 233         int totlen;
 234         option_t long_option[]={
 235                 {"ImgDir",REQ_ARG, NULL ,'y'},
 236                 {"OutFor",REQ_ARG, NULL ,'O'},
 237         };
 238
 239         const char optlist[] = "i:o:r:l:h"
 240
 241 /* UniPG>> */
 242 #ifdef USE_JPWL
 243                                         "W:"
 244 #endif /* USE_JPWL */
 245 /* <<UniPG */
 246                                         ;
 247         totlen=sizeof(long_option);
 248         img_fol->set_out_format = 0;
 249         while (1) {
 250                 int c = getopt_long(argc, argv,optlist,long_option,totlen);
 251                 if (c == -1)
 252                         break;
 253                 switch (c) {
 254                         case 'i':                       /* input file */
 255                         {
 256                                 char *infile = optarg;
 257                                 parameters->decod_format = get_file_format(infile);
 258                                 switch(parameters->decod_format) {
 259                                         case J2K_CFMT:
 260                                         case JP2_CFMT:
 261                                         case JPT_CFMT:
 262                                                 break;
 263                                         default:
 264                                                 fprintf(stderr,
 265                                                         "!! Unrecognized format for infile : %s [accept only *.j2k, *.jp2, *.jpc or *.jpt] !!\n\n",
 266                                                         infile);
 267                                                 return 1;
 268                                 }
 269                                 strncpy(parameters->infile, infile, sizeof(parameters->infile)-1);
 270                         }
 271                         break;
 272
 273                                 /* ----------------------------------------------------- */
 274
 275                         case 'o':                       /* output file */
 276                         {
 277                                 char *outfile = optarg;
 278                                 parameters->cod_format = get_file_format(outfile);
 279                                 switch(parameters->cod_format) {
 280                                         case PGX_DFMT:
 281                                         case PXM_DFMT:
 282                                         case BMP_DFMT:
 283                                         case TIF_DFMT:
 284                                         case RAW_DFMT:
 285                                         case TGA_DFMT:
 286                                                 break;
 287                                         default:
 288                                                 fprintf(stderr, "Unknown output format image %s [only *.pnm, *.pgm, *.ppm, *.pgx, *.bmp, *.tif, *.raw or *.tga]!! \n", outfile);
 289                                                 return 1;
 290                                 }
 291                                 strncpy(parameters->outfile, outfile, sizeof(parameters->outfile)-1);
 292                         }
 293                         break;
 294
 295                                 /* ----------------------------------------------------- */
 296
 297                         case 'O':                       /* output format */
 298                         {
 299                                 char outformat[50];
 300                                 char *of = optarg;
 301                                 sprintf(outformat,".%s",of);
 302                                 img_fol->set_out_format = 1;
 303                                 parameters->cod_format = get_file_format(outformat);
 304                                 switch(parameters->cod_format) {
 305                                         case PGX_DFMT:
 306                                                 img_fol->out_format = "pgx";
 307                                                 break;
 308                                         case PXM_DFMT:
 309                                                 img_fol->out_format = "ppm";
 310                                                 break;
 311                                         case BMP_DFMT:
 312                                                 img_fol->out_format = "bmp";
 313                                                 break;
 314                                         case TIF_DFMT:
 315                                                 img_fol->out_format = "tif";
 316                                                 break;
 317                                         case RAW_DFMT:
 318                                                 img_fol->out_format = "raw";
 319                                                 break;
 320                                         case TGA_DFMT:
 321                                                 img_fol->out_format = "raw";
 322                                                 break;
 323                                         default:
 324                                                 fprintf(stderr, "Unknown output format image %s [only *.pnm, *.pgm, *.ppm, *.pgx, *.bmp, *.tif, *.raw or *.tga]!! \n", outformat);
 325                                                 return 1;
 326                                                 break;
 327                                 }
 328                         }
 329                         break;
 330
 331                                 /* ----------------------------------------------------- */
 332
 333
 334                         case 'r':               /* reduce option */
 335                         {
 336                                 sscanf(optarg, "%d", &parameters->cp_reduce);
 337                         }
 338                         break;
 339
 340                                 /* ----------------------------------------------------- */
 341
 342
 343                         case 'l':               /* layering option */
 344                         {
 345                                 sscanf(optarg, "%d", &parameters->cp_layer);
 346                         }
 347                         break;
 348
 349                                 /* ----------------------------------------------------- */
 350
 351                         case 'h':                       /* display an help description */
 352                                 decode_help_display();
 353                                 return 1;
 354
 355                                 /* ------------------------------------------------------ */
 356
 357                         case 'y':                       /* Image Directory path */
 358                                 {
 359                                         img_fol->imgdirpath = (char*)malloc(strlen(optarg) + 1);
 360                                         strcpy(img_fol->imgdirpath,optarg);
 361                                         img_fol->set_imgdir=1;
 362                                 }
 363                                 break;
 364                                 /* ----------------------------------------------------- */
 365 /* UniPG>> */
 366 #ifdef USE_JPWL
 367
 368                         case 'W':                       /* activate JPWL correction */
 369                         {
 370                                 char *token = NULL;
 371
 372                                 token = strtok(optarg, ",");
 373                                 while(token != NULL) {
 374
 375                                         /* search expected number of components */
 376                                         if (*token == 'c') {
 377
 378                                                 static int compno;
 379
 380                                                 compno = JPWL_EXPECTED_COMPONENTS; /* predefined no. of components */
 381
 382                                                 if(sscanf(token, "c=%d", &compno) == 1) {
 383                                                         /* Specified */
 384                                                         if ((compno < 1) || (compno > 256)) {
 385                                                                 fprintf(stderr, "ERROR -> invalid number of components c = %d\n", compno);
 386                                                                 return 1;
 387                                                         }
 388                                                         parameters->jpwl_exp_comps = compno;
 389
 390                                                 } else if (!strcmp(token, "c")) {
 391                                                         /* default */
 392                                                         parameters->jpwl_exp_comps = compno; /* auto for default size */
 393
 394                                                 } else {
 395                                                         fprintf(stderr, "ERROR -> invalid components specified = %s\n", token);
 396                                                         return 1;
 397                                                 };
 398                                         }
 399
 400                                         /* search maximum number of tiles */
 401                                         if (*token == 't') {
 402
 403                                                 static int tileno;
 404
 405                                                 tileno = JPWL_MAXIMUM_TILES; /* maximum no. of tiles */
 406
 407                                                 if(sscanf(token, "t=%d", &tileno) == 1) {
 408                                                         /* Specified */
 409                                                         if ((tileno < 1) || (tileno > JPWL_MAXIMUM_TILES)) {
 410                                                                 fprintf(stderr, "ERROR -> invalid number of tiles t = %d\n", tileno);
 411                                                                 return 1;
 412                                                         }
 413                                                         parameters->jpwl_max_tiles = tileno;
 414
 415                                                 } else if (!strcmp(token, "t")) {
 416                                                         /* default */
 417                                                         parameters->jpwl_max_tiles = tileno; /* auto for default size */
 418
 419                                                 } else {
 420                                                         fprintf(stderr, "ERROR -> invalid tiles specified = %s\n", token);
 421                                                         return 1;
 422                                                 };
 423                                         }
 424
 425                                         /* next token or bust */
 426                                         token = strtok(NULL, ",");
 427                                 };
 428                                 parameters->jpwl_correct = true;
 429                                 fprintf(stdout, "JPWL correction capability activated\n");
 430                                 fprintf(stdout, "- expecting %d components\n", parameters->jpwl_exp_comps);
 431                         }
 432                         break;
 433 #endif /* USE_JPWL */
 434 /* <<UniPG */
 435
 436                                 /* ----------------------------------------------------- */
 437
 438                         default:
 439                                 fprintf(stderr,"WARNING -> this option is not valid \"-%c %s\"\n",c, optarg);
 440                                 break;
 441                 }
 442         }
 443
 444         /* check for possible errors */
 445         if(img_fol->set_imgdir==1){
 446                 if(!(parameters->infile[0]==0)){
 447                         fprintf(stderr, "Error: options -ImgDir and -i cannot be used together !!\n");
 448                         return 1;
 449                 }
 450                 if(img_fol->set_out_format == 0){
 451                         fprintf(stderr, "Error: When -ImgDir is used, -OutFor <FORMAT> must be used !!\n");
 452                         fprintf(stderr, "Only one format allowed! Valid format PGM, PPM, PNM, PGX, BMP, TIF, RAW and TGA!!\n");
 453                         return 1;
 454                 }
 455                 if(!((parameters->outfile[0] == 0))){
 456                         fprintf(stderr, "Error: options -ImgDir and -o cannot be used together !!\n");
 457                         return 1;
 458                 }
 459         }else{
 460                 if((parameters->infile[0] == 0) || (parameters->outfile[0] == 0)) {
 461                         fprintf(stderr, "Error: One of the options -i or -ImgDir must be specified\n");
 462                         fprintf(stderr, "Error: When using -i, -o must be used\n");
 463                         fprintf(stderr, "usage: image_to_j2k -i *.j2k/jp2/j2c -o *.pgm/ppm/pnm/pgx/bmp/tif/raw/tga(+ options)\n");
 464                         return 1;
 465                 }
 466         }
 467
 468         return 0;
 469 }
 470
 471 /* -------------------------------------------------------------------------- */
 472
 473 /**
 474 sample error callback expecting a FILE* client object
 475 */
 476 void error_callback(const char *msg, void *client_data) {
 477         FILE *stream = (FILE*)client_data;
 478         fprintf(stream, "[ERROR] %s", msg);
 479 }
 480 /**
 481 sample warning callback expecting a FILE* client object
 482 */
 483 void warning_callback(const char *msg, void *client_data) {
 484         FILE *stream = (FILE*)client_data;
 485         fprintf(stream, "[WARNING] %s", msg);
 486 }
 487 /**
 488 sample debug callback expecting no client object
 489 */
 490 void info_callback(const char *msg, void *client_data) {
 491         (void)client_data;
 492         fprintf(stdout, "[INFO] %s", msg);
 493 }
 494
 495 /* -------------------------------------------------------------------------- */
 496
 497 int main(int argc, char **argv) {
 498         opj_dparameters_t parameters;   /* decompression parameters */
 499         img_fol_t img_fol;
 500         opj_event_mgr_t event_mgr;              /* event manager */
 501         opj_image_t *image = NULL;
 502         FILE *fsrc = NULL;
 503         unsigned char *src = NULL;
 504         int file_length;
 505         int num_images;
 506         int i,imageno;
 507         dircnt_t *dirptr;
 508         opj_dinfo_t* dinfo = NULL;      /* handle to a decompressor */
 509         opj_cio_t *cio = NULL;
 510
 511         /* configure the event callbacks (not required) */
 512         memset(&event_mgr, 0, sizeof(opj_event_mgr_t));
 513         event_mgr.error_handler = error_callback;
 514         event_mgr.warning_handler = warning_callback;
 515         event_mgr.info_handler = info_callback;
 516
 517         /* set decoding parameters to default values */
 518         opj_set_default_decoder_parameters(&parameters);
 519
 520
 521         /* parse input and get user encoding parameters */
 522         if(parse_cmdline_decoder(argc, argv, &parameters,&img_fol) == 1) {
 523                 return 0;
 524         }
 525
 526         if(img_fol.set_imgdir==1){
 527                 num_images=get_num_images(img_fol.imgdirpath);
 528
 529                 dirptr=(dircnt_t*)malloc(sizeof(dircnt_t));
 530                 if(dirptr){
 531                         dirptr->filename_buf = (char*)malloc(num_images*OPJ_PATH_LEN*sizeof(char));     // Stores at max 10 image file names
 532                         dirptr->filename = (char**) malloc(num_images*sizeof(char*));
 533
 534                         if(!dirptr->filename_buf){
 535                                 return 0;
 536                         }
 537                         for(i=0;i<num_images;i++){
 538                                 dirptr->filename[i] = dirptr->filename_buf + i*OPJ_PATH_LEN;
 539                         }
 540                 }
 541                 if(load_images(dirptr,img_fol.imgdirpath)==1){
 542                         return 0;
 543                 }
 544                 if (num_images==0){
 545                         fprintf(stdout,"Folder is empty\n");
 546                         return 0;
 547                 }
 548         }else{
 549                 num_images=1;
 550         }
 551
 552         /*Encoding image one by one*/
 553         for(imageno = 0; imageno < num_images ; imageno++)
 554         {
 555
 556                 image = NULL;
 557                 fprintf(stderr,"\n");
 558
 559                 if(img_fol.set_imgdir==1){
 560                         if (get_next_file(imageno, dirptr,&img_fol, &parameters)) {
 561                                 fprintf(stderr,"skipping file...\n");
 562                                 continue;
 563                         }
 564
 565                 }
 566
 567
 568                 /* read the input file and put it in memory */
 569                 /* ---------------------------------------- */
 570                 fsrc = fopen(parameters.infile, "rb");
 571                 if (!fsrc) {
 572                         fprintf(stderr, "ERROR -> failed to open %s for reading\n", parameters.infile);
 573                         return 1;
 574                 }
 575                 fseek(fsrc, 0, SEEK_END);
 576                 file_length = ftell(fsrc);
 577                 fseek(fsrc, 0, SEEK_SET);
 578                 src = (unsigned char *) malloc(file_length);
 579                 fread(src, 1, file_length, fsrc);
 580                 fclose(fsrc);
 581
 582
 583
 584                 /* decode the code-stream */
 585                 /* ---------------------- */
 586
 587                 switch(parameters.decod_format) {
 588                 case J2K_CFMT:
 589                 {
 590                         /* JPEG-2000 codestream */
 591
 592                         /* get a decoder handle */
 593                         dinfo = opj_create_decompress(CODEC_J2K);
 594
 595                         /* catch events using our callbacks and give a local context */
 596                         opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr);
 597
 598                         /* setup the decoder decoding parameters using user parameters */
 599                         opj_setup_decoder(dinfo, &parameters);
 600
 601                         /* open a byte stream */
 602                         cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
 603
 604                         /* decode the stream and fill the image structure */
 605                         image = opj_decode(dinfo, cio);
 606                         if(!image) {
 607                                 fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
 608                                 opj_destroy_decompress(dinfo);
 609                                 opj_cio_close(cio);
 610                                 return 1;
 611                         }
 612
 613                         /* close the byte stream */
 614                         opj_cio_close(cio);
 615                 }
 616                 break;
 617
 618                 case JP2_CFMT:
 619                 {
 620                         /* JPEG 2000 compressed image data */
 621
 622                         /* get a decoder handle */
 623                         dinfo = opj_create_decompress(CODEC_JP2);
 624
 625                         /* catch events using our callbacks and give a local context */
 626                         opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr);
 627
 628                         /* setup the decoder decoding parameters using the current image and user parameters */
 629                         opj_setup_decoder(dinfo, &parameters);
 630
 631                         /* open a byte stream */
 632                         cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
 633
 634                         /* decode the stream and fill the image structure */
 635                         image = opj_decode(dinfo, cio);
 636                         if(!image) {
 637                                 fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
 638                                 opj_destroy_decompress(dinfo);
 639                                 opj_cio_close(cio);
 640                                 return 1;
 641                         }
 642
 643                         /* close the byte stream */
 644                         opj_cio_close(cio);
 645
 646                 }
 647                 break;
 648
 649                 case JPT_CFMT:
 650                 {
 651                         /* JPEG 2000, JPIP */
 652
 653                         /* get a decoder handle */
 654                         dinfo = opj_create_decompress(CODEC_JPT);
 655
 656                         /* catch events using our callbacks and give a local context */
 657                         opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr);
 658
 659                         /* setup the decoder decoding parameters using user parameters */
 660                         opj_setup_decoder(dinfo, &parameters);
 661
 662                         /* open a byte stream */
 663                         cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
 664
 665                         /* decode the stream and fill the image structure */
 666                         image = opj_decode(dinfo, cio);
 667                         if(!image) {
 668                                 fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
 669                                 opj_destroy_decompress(dinfo);
 670                                 opj_cio_close(cio);
 671                                 return 1;
 672                         }
 673
 674                         /* close the byte stream */
 675                         opj_cio_close(cio);
 676                 }
 677                 break;
 678
 679                 default:
 680                         fprintf(stderr, "skipping file..\n");
 681                         continue;
 682         }
 683
 684                 /* free the memory containing the code-stream */
 685                 free(src);
 686                 src = NULL;
 687
 688                 /* create output image */
 689                 /* ------------------- */
 690                 switch (parameters.cod_format) {
 691                 case PXM_DFMT:                  /* PNM PGM PPM */
 692                         if (imagetopnm(image, parameters.outfile)) {
 693                                 fprintf(stdout,"Outfile %s not generated\n",parameters.outfile);
 694                         }
 695                         else {
 696                                 fprintf(stdout,"Generated Outfile %s\n",parameters.outfile);
 697                         }
 698                         break;
 699
 700                 case PGX_DFMT:                  /* PGX */
 701                         if(imagetopgx(image, parameters.outfile)){
 702                                 fprintf(stdout,"Outfile %s not generated\n",parameters.outfile);
 703                         }
 704                         else {
 705                                 fprintf(stdout,"Generated Outfile %s\n",parameters.outfile);
 706                         }
 707                         break;
 708
 709                 case BMP_DFMT:                  /* BMP */
 710                         if(imagetobmp(image, parameters.outfile)){
 711                                 fprintf(stdout,"Outfile %s not generated\n",parameters.outfile);
 712                         }
 713                         else {
 714                                 fprintf(stdout,"Generated Outfile %s\n",parameters.outfile);
 715                         }
 716                         break;
 717
 718                 case TIF_DFMT:                  /* TIFF */
 719                         if(imagetotif(image, parameters.outfile)){
 720                                 fprintf(stdout,"Outfile %s not generated\n",parameters.outfile);
 721                         }
 722                         else {
 723                                 fprintf(stdout,"Generated Outfile %s\n",parameters.outfile);
 724                         }
 725                         break;
 726
 727                 case RAW_DFMT:                  /* RAW */
 728                         if(imagetoraw(image, parameters.outfile)){
 729                                 fprintf(stdout,"Error generating raw file. Outfile %s not generated\n",parameters.outfile);
 730                         }
 731                         else {
 732                                 fprintf(stdout,"Successfully generated Outfile %s\n",parameters.outfile);
 733                         }
 734                         break;
 735
 736                 case TGA_DFMT:                  /* TGA */
 737                         if(imagetotga(image, parameters.outfile)){
 738                                 fprintf(stdout,"Error generating tga file. Outfile %s not generated\n",parameters.outfile);
 739                         }
 740                         else {
 741                                 fprintf(stdout,"Successfully generated Outfile %s\n",parameters.outfile);
 742                         }
 743                         break;
 744                 }
 745
 746                 /* free remaining structures */
 747                 if(dinfo) {
 748                         opj_destroy_decompress(dinfo);
 749                 }
 750                 /* free image data structure */
 751                 opj_image_destroy(image);
 752
 753         }
 754         return 0;
 755 }
 756 //end main
 757
 758