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 <opj_config.h>
  33 #include <stdio.h>
  34 #include <string.h>
  35 #include <stdlib.h>
  36 #include <math.h>
  37
  38 #include "openjpeg.h"
  39 #include "compat/getopt.h"
  40 #include "convert.h"
  41 #ifdef WIN32
  42 #include "windirent.h"
  43 #else
  44 #include <dirent.h>
  45 #endif /* WIN32 */
  46 #include "index.h"
  47
  48 #ifndef WIN32
  49 #include <strings.h>
  50 #define _stricmp strcasecmp
  51 #define _strnicmp strncasecmp
  52 #endif
  53
  54 /* ----------------------------------------------------------------------- */
  55
  56 #define J2K_CFMT 0
  57 #define JP2_CFMT 1
  58 #define JPT_CFMT 2
  59
  60 #define PXM_DFMT 10
  61 #define PGX_DFMT 11
  62 #define BMP_DFMT 12
  63 #define YUV_DFMT 13
  64 #define TIF_DFMT 14
  65 #define RAW_DFMT 15
  66 #define TGA_DFMT 16
  67 #define PNG_DFMT 17
  68 /* ----------------------------------------------------------------------- */
  69
  70 typedef struct dircnt{
  71         /** Buffer for holding images read from Directory*/
  72         char *filename_buf;
  73         /** Pointer to the buffer*/
  74         char **filename;
  75 }dircnt_t;
  76
  77
  78 typedef struct img_folder{
  79         /** The directory path of the folder containing input images*/
  80         char *imgdirpath;
  81         /** Output format*/
  82         const char *out_format;
  83         /** Enable option*/
  84         char set_imgdir;
  85         /** Enable Cod Format for output*/
  86         char set_out_format;
  87
  88 }img_fol_t;
  89
  90 void decode_help_display() {
  91         fprintf(stdout,"HELP\n----\n\n");
  92         fprintf(stdout,"- the -h option displays this help information on screen\n\n");
  93
  94 /* UniPG>> */
  95         fprintf(stdout,"List of parameters for the JPEG 2000 "
  96 #ifdef USE_JPWL
  97                 "+ JPWL "
  98 #endif /* USE_JPWL */
  99                 "decoder:\n");
 100 /* <<UniPG */
 101         fprintf(stdout,"\n");
 102         fprintf(stdout,"\n");
 103         fprintf(stdout,"  -ImgDir \n");
 104         fprintf(stdout,"        Image file Directory path \n");
 105         fprintf(stdout,"  -OutFor \n");
 106         fprintf(stdout,"    REQUIRED only if -ImgDir is used\n");
 107         fprintf(stdout,"          Need to specify only format without filename <BMP>  \n");
 108         fprintf(stdout,"    Currently accepts PGM, PPM, PNM, PGX, BMP, TIF, RAW and TGA formats\n");
 109         fprintf(stdout,"  -i <compressed file>\n");
 110         fprintf(stdout,"    REQUIRED only if an Input image directory not specified\n");
 111         fprintf(stdout,"    Currently accepts J2K-files, JP2-files and JPT-files. The file type\n");
 112         fprintf(stdout,"    is identified based on its suffix.\n");
 113         fprintf(stdout,"  -o <decompressed file>\n");
 114         fprintf(stdout,"    REQUIRED\n");
 115         fprintf(stdout,"    Currently accepts PGM, PPM, PNM, PGX, BMP, TIF, RAW and TGA files\n");
 116         fprintf(stdout,"    Binary data is written to the file (not ascii). If a PGX\n");
 117         fprintf(stdout,"    filename is given, there will be as many output files as there are\n");
 118         fprintf(stdout,"    components: an indice starting from 0 will then be appended to the\n");
 119         fprintf(stdout,"    output filename, just before the \"pgx\" extension. If a PGM filename\n");
 120         fprintf(stdout,"    is given and there are more than one component, only the first component\n");
 121         fprintf(stdout,"    will be written to the file.\n");
 122         fprintf(stdout,"  -r <reduce factor>\n");
 123         fprintf(stdout,"    Set the number of highest resolution levels to be discarded. The\n");
 124         fprintf(stdout,"    image resolution is effectively divided by 2 to the power of the\n");
 125         fprintf(stdout,"    number of discarded levels. The reduce factor is limited by the\n");
 126         fprintf(stdout,"    smallest total number of decomposition levels among tiles.\n");
 127         fprintf(stdout,"  -l <number of quality layers to decode>\n");
 128         fprintf(stdout,"    Set the maximum number of quality layers to decode. If there are\n");
 129         fprintf(stdout,"    less quality layers than the specified number, all the quality layers\n");
 130         fprintf(stdout,"    are decoded.\n");
 131         fprintf(stdout,"  -x  \n");
 132         fprintf(stdout,"    Create an index file *.Idx (-x index_name.Idx) \n");
 133         fprintf(stdout,"\n");
 134 /* UniPG>> */
 135 #ifdef USE_JPWL
 136         fprintf(stdout,"  -W <options>\n");
 137         fprintf(stdout,"    Activates the JPWL correction capability, if the codestream complies.\n");
 138         fprintf(stdout,"    Options can be a comma separated list of <param=val> tokens:\n");
 139         fprintf(stdout,"    c, c=numcomps\n");
 140         fprintf(stdout,"       numcomps is the number of expected components in the codestream\n");
 141         fprintf(stdout,"       (search of first EPB rely upon this, default is %d)\n", JPWL_EXPECTED_COMPONENTS);
 142 #endif /* USE_JPWL */
 143 /* <<UniPG */
 144         fprintf(stdout,"\n");
 145 }
 146
 147 /* -------------------------------------------------------------------------- */
 148
 149 int get_num_images(char *imgdirpath){
 150         DIR *dir;
 151         struct dirent* content;
 152         int num_images = 0;
 153
 154         /*Reading the input images from given input directory*/
 155
 156         dir= opendir(imgdirpath);
 157         if(!dir){
 158                 fprintf(stderr,"Could not open Folder %s\n",imgdirpath);
 159                 return 0;
 160         }
 161
 162         while((content=readdir(dir))!=NULL){
 163                 if(strcmp(".",content->d_name)==0 || strcmp("..",content->d_name)==0 )
 164                         continue;
 165                 num_images++;
 166         }
 167         return num_images;
 168 }
 169
 170 int load_images(dircnt_t *dirptr, char *imgdirpath){
 171         DIR *dir;
 172         struct dirent* content;
 173         int i = 0;
 174
 175         /*Reading the input images from given input directory*/
 176
 177         dir= opendir(imgdirpath);
 178         if(!dir){
 179                 fprintf(stderr,"Could not open Folder %s\n",imgdirpath);
 180                 return 1;
 181         }else   {
 182                 fprintf(stderr,"Folder opened successfully\n");
 183         }
 184
 185         while((content=readdir(dir))!=NULL){
 186                 if(strcmp(".",content->d_name)==0 || strcmp("..",content->d_name)==0 )
 187                         continue;
 188
 189                 strcpy(dirptr->filename[i],content->d_name);
 190                 i++;
 191         }
 192         return 0;
 193 }
 194
 195 int get_file_format(char *filename) {
 196         unsigned int i;
 197         static const char *extension[] = {"pgx", "pnm", "pgm", "ppm", "bmp","tif", "raw", "tga", "png", "j2k", "jp2", "jpt", "j2c", "jpc" };
 198         static const int format[] = { PGX_DFMT, PXM_DFMT, PXM_DFMT, PXM_DFMT, BMP_DFMT, TIF_DFMT, RAW_DFMT, TGA_DFMT, PNG_DFMT, J2K_CFMT, JP2_CFMT, JPT_CFMT, J2K_CFMT, J2K_CFMT };
 199         char * ext = strrchr(filename, '.');
 200         if (ext == NULL)
 201                 return -1;
 202         ext++;
 203         if(ext) {
 204                 for(i = 0; i < sizeof(format)/sizeof(*format); i++) {
 205                         if(_strnicmp(ext, extension[i], 3) == 0) {
 206                                 return format[i];
 207                         }
 208                 }
 209         }
 210
 211         return -1;
 212 }
 213
 214 char get_next_file(int imageno,dircnt_t *dirptr,img_fol_t *img_fol, opj_dparameters_t *parameters){
 215         char image_filename[OPJ_PATH_LEN], infilename[OPJ_PATH_LEN],outfilename[OPJ_PATH_LEN],temp_ofname[OPJ_PATH_LEN];
 216         char *temp_p, temp1[OPJ_PATH_LEN]="";
 217
 218         strcpy(image_filename,dirptr->filename[imageno]);
 219         fprintf(stderr,"File Number %d \"%s\"\n",imageno,image_filename);
 220         parameters->decod_format = get_file_format(image_filename);
 221         if (parameters->decod_format == -1)
 222                 return 1;
 223         sprintf(infilename,"%s/%s",img_fol->imgdirpath,image_filename);
 224         strncpy(parameters->infile, infilename, sizeof(infilename));
 225
 226         //Set output file
 227         strcpy(temp_ofname,strtok(image_filename,"."));
 228         while((temp_p = strtok(NULL,".")) != NULL){
 229                 strcat(temp_ofname,temp1);
 230                 sprintf(temp1,".%s",temp_p);
 231         }
 232         if(img_fol->set_out_format==1){
 233                 sprintf(outfilename,"%s/%s.%s",img_fol->imgdirpath,temp_ofname,img_fol->out_format);
 234                 strncpy(parameters->outfile, outfilename, sizeof(outfilename));
 235         }
 236         return 0;
 237 }
 238
 239 /* -------------------------------------------------------------------------- */
 240 int parse_cmdline_decoder(int argc, char **argv, opj_dparameters_t *parameters,img_fol_t *img_fol, char *indexfilename) {
 241         /* parse the command line */
 242         int totlen;
 243         option_t long_option[]={
 244                 {"ImgDir",REQ_ARG, NULL ,'y'},
 245                 {"OutFor",REQ_ARG, NULL ,'O'},
 246         };
 247
 248         const char optlist[] = "i:o:r:l:hx:"
 249
 250 /* UniPG>> */
 251 #ifdef USE_JPWL
 252                                         "W:"
 253 #endif /* USE_JPWL */
 254 /* <<UniPG */
 255                                         ;
 256         totlen=sizeof(long_option);
 257         img_fol->set_out_format = 0;
 258         while (1) {
 259                 int c = getopt_long(argc, argv,optlist,long_option,totlen);
 260                 if (c == -1)
 261                         break;
 262                 switch (c) {
 263                         case 'i':                       /* input file */
 264                         {
 265                                 char *infile = optarg;
 266                                 parameters->decod_format = get_file_format(infile);
 267                                 switch(parameters->decod_format) {
 268                                         case J2K_CFMT:
 269                                         case JP2_CFMT:
 270                                         case JPT_CFMT:
 271                                                 break;
 272                                         default:
 273                                                 fprintf(stderr,
 274                                                         "!! Unrecognized format for infile : %s [accept only *.j2k, *.jp2, *.jpc or *.jpt] !!\n\n",
 275                                                         infile);
 276                                                 return 1;
 277                                 }
 278                                 strncpy(parameters->infile, infile, sizeof(parameters->infile)-1);
 279                         }
 280                         break;
 281
 282                                 /* ----------------------------------------------------- */
 283
 284                         case 'o':                       /* output file */
 285                         {
 286                                 char *outfile = optarg;
 287                                 parameters->cod_format = get_file_format(outfile);
 288                                 switch(parameters->cod_format) {
 289                                         case PGX_DFMT:
 290                                         case PXM_DFMT:
 291                                         case BMP_DFMT:
 292                                         case TIF_DFMT:
 293                                         case RAW_DFMT:
 294                                         case TGA_DFMT:
 295                                         case PNG_DFMT:
 296                                                 break;
 297                                         default:
 298                                                 fprintf(stderr, "Unknown output format image %s [only *.pnm, *.pgm, *.ppm, *.pgx, *.bmp, *.tif, *.raw or *.tga]!! \n", outfile);
 299                                                 return 1;
 300                                 }
 301                                 strncpy(parameters->outfile, outfile, sizeof(parameters->outfile)-1);
 302                         }
 303                         break;
 304
 305                                 /* ----------------------------------------------------- */
 306
 307                         case 'O':                       /* output format */
 308                         {
 309                                 char outformat[50];
 310                                 char *of = optarg;
 311                                 sprintf(outformat,".%s",of);
 312                                 img_fol->set_out_format = 1;
 313                                 parameters->cod_format = get_file_format(outformat);
 314                                 switch(parameters->cod_format) {
 315                                         case PGX_DFMT:
 316                                                 img_fol->out_format = "pgx";
 317                                                 break;
 318                                         case PXM_DFMT:
 319                                                 img_fol->out_format = "ppm";
 320                                                 break;
 321                                         case BMP_DFMT:
 322                                                 img_fol->out_format = "bmp";
 323                                                 break;
 324                                         case TIF_DFMT:
 325                                                 img_fol->out_format = "tif";
 326                                                 break;
 327                                         case RAW_DFMT:
 328                                                 img_fol->out_format = "raw";
 329                                                 break;
 330                                         case TGA_DFMT:
 331                                                 img_fol->out_format = "raw";
 332                                                 break;
 333                                         case PNG_DFMT:
 334                                                 img_fol->out_format = "png";
 335                                                 break;
 336                                         default:
 337                                                 fprintf(stderr, "Unknown output format image %s [only *.pnm, *.pgm, *.ppm, *.pgx, *.bmp, *.tif, *.raw or *.tga]!! \n", outformat);
 338                                                 return 1;
 339                                                 break;
 340                                 }
 341                         }
 342                         break;
 343
 344                                 /* ----------------------------------------------------- */
 345
 346
 347                         case 'r':               /* reduce option */
 348                         {
 349                                 sscanf(optarg, "%d", &parameters->cp_reduce);
 350                         }
 351                         break;
 352
 353                                 /* ----------------------------------------------------- */
 354
 355
 356                         case 'l':               /* layering option */
 357                         {
 358                                 sscanf(optarg, "%d", &parameters->cp_layer);
 359                         }
 360                         break;
 361
 362                                 /* ----------------------------------------------------- */
 363
 364                         case 'h':                       /* display an help description */
 365                                 decode_help_display();
 366                                 return 1;
 367
 368                                 /* ------------------------------------------------------ */
 369
 370                         case 'y':                       /* Image Directory path */
 371                                 {
 372                                         img_fol->imgdirpath = (char*)malloc(strlen(optarg) + 1);
 373                                         strcpy(img_fol->imgdirpath,optarg);
 374                                         img_fol->set_imgdir=1;
 375                                 }
 376                                 break;
 377                                 /* ----------------------------------------------------- */
 378                         case 'x':                       /* Creation of index file */
 379                                 {
 380                                         char *index = optarg;
 381                                         strncpy(indexfilename, index, OPJ_PATH_LEN);
 382                                 }
 383                                 break;
 384                                 /* ----------------------------------------------------- */
 385                                 /* UniPG>> */
 386 #ifdef USE_JPWL
 387
 388                         case 'W':                       /* activate JPWL correction */
 389                         {
 390                                 char *token = NULL;
 391
 392                                 token = strtok(optarg, ",");
 393                                 while(token != NULL) {
 394
 395                                         /* search expected number of components */
 396                                         if (*token == 'c') {
 397
 398                                                 static int compno;
 399
 400                                                 compno = JPWL_EXPECTED_COMPONENTS; /* predefined no. of components */
 401
 402                                                 if(sscanf(token, "c=%d", &compno) == 1) {
 403                                                         /* Specified */
 404                                                         if ((compno < 1) || (compno > 256)) {
 405                                                                 fprintf(stderr, "ERROR -> invalid number of components c = %d\n", compno);
 406                                                                 return 1;
 407                                                         }
 408                                                         parameters->jpwl_exp_comps = compno;
 409
 410                                                 } else if (!strcmp(token, "c")) {
 411                                                         /* default */
 412                                                         parameters->jpwl_exp_comps = compno; /* auto for default size */
 413
 414                                                 } else {
 415                                                         fprintf(stderr, "ERROR -> invalid components specified = %s\n", token);
 416                                                         return 1;
 417                                                 };
 418                                         }
 419
 420                                         /* search maximum number of tiles */
 421                                         if (*token == 't') {
 422
 423                                                 static int tileno;
 424
 425                                                 tileno = JPWL_MAXIMUM_TILES; /* maximum no. of tiles */
 426
 427                                                 if(sscanf(token, "t=%d", &tileno) == 1) {
 428                                                         /* Specified */
 429                                                         if ((tileno < 1) || (tileno > JPWL_MAXIMUM_TILES)) {
 430                                                                 fprintf(stderr, "ERROR -> invalid number of tiles t = %d\n", tileno);
 431                                                                 return 1;
 432                                                         }
 433                                                         parameters->jpwl_max_tiles = tileno;
 434
 435                                                 } else if (!strcmp(token, "t")) {
 436                                                         /* default */
 437                                                         parameters->jpwl_max_tiles = tileno; /* auto for default size */
 438
 439                                                 } else {
 440                                                         fprintf(stderr, "ERROR -> invalid tiles specified = %s\n", token);
 441                                                         return 1;
 442                                                 };
 443                                         }
 444
 445                                         /* next token or bust */
 446                                         token = strtok(NULL, ",");
 447                                 };
 448                                 parameters->jpwl_correct = true;
 449                                 fprintf(stdout, "JPWL correction capability activated\n");
 450                                 fprintf(stdout, "- expecting %d components\n", parameters->jpwl_exp_comps);
 451                         }
 452                         break;
 453 #endif /* USE_JPWL */
 454 /* <<UniPG */
 455
 456                                 /* ----------------------------------------------------- */
 457
 458                         default:
 459                                 fprintf(stderr,"WARNING -> this option is not valid \"-%c %s\"\n",c, optarg);
 460                                 break;
 461                 }
 462         }
 463
 464         /* check for possible errors */
 465         if(img_fol->set_imgdir==1){
 466                 if(!(parameters->infile[0]==0)){
 467                         fprintf(stderr, "Error: options -ImgDir and -i cannot be used together !!\n");
 468                         return 1;
 469                 }
 470                 if(img_fol->set_out_format == 0){
 471                         fprintf(stderr, "Error: When -ImgDir is used, -OutFor <FORMAT> must be used !!\n");
 472                         fprintf(stderr, "Only one format allowed! Valid format PGM, PPM, PNM, PGX, BMP, TIF, RAW and TGA!!\n");
 473                         return 1;
 474                 }
 475                 if(!((parameters->outfile[0] == 0))){
 476                         fprintf(stderr, "Error: options -ImgDir and -o cannot be used together !!\n");
 477                         return 1;
 478                 }
 479         }else{
 480                 if((parameters->infile[0] == 0) || (parameters->outfile[0] == 0)) {
 481                         fprintf(stderr, "Error: One of the options -i or -ImgDir must be specified\n");
 482                         fprintf(stderr, "Error: When using -i, -o must be used\n");
 483                         fprintf(stderr, "usage: image_to_j2k -i *.j2k/jp2/j2c -o *.pgm/ppm/pnm/pgx/bmp/tif/raw/tga(+ options)\n");
 484                         return 1;
 485                 }
 486         }
 487
 488         return 0;
 489 }
 490
 491 /* -------------------------------------------------------------------------- */
 492
 493 /**
 494 sample error callback expecting a FILE* client object
 495 */
 496 void error_callback(const char *msg, void *client_data) {
 497         FILE *stream = (FILE*)client_data;
 498         fprintf(stream, "[ERROR] %s", msg);
 499 }
 500 /**
 501 sample warning callback expecting a FILE* client object
 502 */
 503 void warning_callback(const char *msg, void *client_data) {
 504         FILE *stream = (FILE*)client_data;
 505         fprintf(stream, "[WARNING] %s", msg);
 506 }
 507 /**
 508 sample debug callback expecting no client object
 509 */
 510 void info_callback(const char *msg, void *client_data) {
 511         (void)client_data;
 512         fprintf(stdout, "[INFO] %s", msg);
 513 }
 514
 515 /* -------------------------------------------------------------------------- */
 516
 517 int main(int argc, char **argv) {
 518         opj_dparameters_t parameters;   /* decompression parameters */
 519         img_fol_t img_fol;
 520         opj_event_mgr_t event_mgr;              /* event manager */
 521         opj_image_t *image = NULL;
 522         FILE *fsrc = NULL;
 523         unsigned char *src = NULL;
 524         int file_length;
 525         int num_images;
 526         int i,imageno;
 527         dircnt_t *dirptr;
 528         opj_dinfo_t* dinfo = NULL;      /* handle to a decompressor */
 529         opj_cio_t *cio = NULL;
 530         opj_codestream_info_t cstr_info;  /* Codestream information structure */
 531         char indexfilename[OPJ_PATH_LEN];       /* index file name */
 532
 533         /* configure the event callbacks (not required) */
 534         memset(&event_mgr, 0, sizeof(opj_event_mgr_t));
 535         event_mgr.error_handler = error_callback;
 536         event_mgr.warning_handler = warning_callback;
 537         event_mgr.info_handler = info_callback;
 538
 539         /* set decoding parameters to default values */
 540         opj_set_default_decoder_parameters(&parameters);
 541
 542         /* Initialize indexfilename and img_fol */
 543         *indexfilename = 0;
 544         memset(&img_fol,0,sizeof(img_fol_t));
 545
 546         /* parse input and get user encoding parameters */
 547         if(parse_cmdline_decoder(argc, argv, &parameters,&img_fol, indexfilename) == 1) {
 548                 return 1;
 549         }
 550
 551         /* Initialize reading of directory */
 552         if(img_fol.set_imgdir==1){
 553                 num_images=get_num_images(img_fol.imgdirpath);
 554
 555                 dirptr=(dircnt_t*)malloc(sizeof(dircnt_t));
 556                 if(dirptr){
 557                         dirptr->filename_buf = (char*)malloc(num_images*OPJ_PATH_LEN*sizeof(char));     // Stores at max 10 image file names
 558                         dirptr->filename = (char**) malloc(num_images*sizeof(char*));
 559
 560                         if(!dirptr->filename_buf){
 561                                 return 1;
 562                         }
 563                         for(i=0;i<num_images;i++){
 564                                 dirptr->filename[i] = dirptr->filename_buf + i*OPJ_PATH_LEN;
 565                         }
 566                 }
 567                 if(load_images(dirptr,img_fol.imgdirpath)==1){
 568                         return 1;
 569                 }
 570                 if (num_images==0){
 571                         fprintf(stdout,"Folder is empty\n");
 572                         return 1;
 573                 }
 574         }else{
 575                 num_images=1;
 576         }
 577
 578         /*Encoding image one by one*/
 579         for(imageno = 0; imageno < num_images ; imageno++)      {
 580                 image = NULL;
 581                 fprintf(stderr,"\n");
 582
 583                 if(img_fol.set_imgdir==1){
 584                         if (get_next_file(imageno, dirptr,&img_fol, &parameters)) {
 585                                 fprintf(stderr,"skipping file...\n");
 586                                 continue;
 587                         }
 588                 }
 589
 590                 /* read the input file and put it in memory */
 591                 /* ---------------------------------------- */
 592                 fsrc = fopen(parameters.infile, "rb");
 593                 if (!fsrc) {
 594                         fprintf(stderr, "ERROR -> failed to open %s for reading\n", parameters.infile);
 595                         return 1;
 596                 }
 597                 fseek(fsrc, 0, SEEK_END);
 598                 file_length = ftell(fsrc);
 599                 fseek(fsrc, 0, SEEK_SET);
 600                 src = (unsigned char *) malloc(file_length);
 601                 fread(src, 1, file_length, fsrc);
 602                 fclose(fsrc);
 603
 604                 /* decode the code-stream */
 605                 /* ---------------------- */
 606
 607                 switch(parameters.decod_format) {
 608                 case J2K_CFMT:
 609                 {
 610                         /* JPEG-2000 codestream */
 611
 612                         /* get a decoder handle */
 613                         dinfo = opj_create_decompress(CODEC_J2K);
 614
 615                         /* catch events using our callbacks and give a local context */
 616                         opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr);
 617
 618                         /* setup the decoder decoding parameters using user parameters */
 619                         opj_setup_decoder(dinfo, &parameters);
 620
 621                         /* open a byte stream */
 622                         cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
 623
 624                         /* decode the stream and fill the image structure */
 625                         if (*indexfilename)                             // If need to extract codestream information
 626                                 image = opj_decode_with_info(dinfo, cio, &cstr_info);
 627                         else
 628                                 image = opj_decode(dinfo, cio);
 629                         if(!image) {
 630                                 fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
 631                                 opj_destroy_decompress(dinfo);
 632                                 opj_cio_close(cio);
 633                                 return 1;
 634                         }
 635
 636                         /* close the byte stream */
 637                         opj_cio_close(cio);
 638
 639                         /* Write the index to disk */
 640                         if (*indexfilename) {
 641                                 char bSuccess;
 642                                 bSuccess = write_index_file(&cstr_info, indexfilename);
 643                                 if (bSuccess) {
 644                                         fprintf(stderr, "Failed to output index file\n");
 645                                 }
 646                         }
 647                 }
 648                 break;
 649
 650                 case JP2_CFMT:
 651                 {
 652                         /* JPEG 2000 compressed image data */
 653
 654                         /* get a decoder handle */
 655                         dinfo = opj_create_decompress(CODEC_JP2);
 656
 657                         /* catch events using our callbacks and give a local context */
 658                         opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr);
 659
 660                         /* setup the decoder decoding parameters using the current image and user parameters */
 661                         opj_setup_decoder(dinfo, &parameters);
 662
 663                         /* open a byte stream */
 664                         cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
 665
 666                         /* decode the stream and fill the image structure */
 667                         if (*indexfilename)                             // If need to extract codestream information
 668                                 image = opj_decode_with_info(dinfo, cio, &cstr_info);
 669                         else
 670                                 image = opj_decode(dinfo, cio);
 671                         if(!image) {
 672                                 fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
 673                                 opj_destroy_decompress(dinfo);
 674                                 opj_cio_close(cio);
 675                                 return 1;
 676                         }
 677
 678                         /* close the byte stream */
 679                         opj_cio_close(cio);
 680
 681                         /* Write the index to disk */
 682                         if (*indexfilename) {
 683                                 char bSuccess;
 684                                 bSuccess = write_index_file(&cstr_info, indexfilename);
 685                                 if (bSuccess) {
 686                                         fprintf(stderr, "Failed to output index file\n");
 687                                 }
 688                         }
 689                 }
 690                 break;
 691
 692                 case JPT_CFMT:
 693                 {
 694                         /* JPEG 2000, JPIP */
 695
 696                         /* get a decoder handle */
 697                         dinfo = opj_create_decompress(CODEC_JPT);
 698
 699                         /* catch events using our callbacks and give a local context */
 700                         opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr);
 701
 702                         /* setup the decoder decoding parameters using user parameters */
 703                         opj_setup_decoder(dinfo, &parameters);
 704
 705                         /* open a byte stream */
 706                         cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
 707
 708                         /* decode the stream and fill the image structure */
 709                         if (*indexfilename)                             // If need to extract codestream information
 710                                 image = opj_decode_with_info(dinfo, cio, &cstr_info);
 711                         else
 712                                 image = opj_decode(dinfo, cio);
 713                         if(!image) {
 714                                 fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
 715                                 opj_destroy_decompress(dinfo);
 716                                 opj_cio_close(cio);
 717                                 return 1;
 718                         }
 719
 720                         /* close the byte stream */
 721                         opj_cio_close(cio);
 722
 723                         /* Write the index to disk */
 724                         if (*indexfilename) {
 725                                 char bSuccess;
 726                                 bSuccess = write_index_file(&cstr_info, indexfilename);
 727                                 if (bSuccess) {
 728                                         fprintf(stderr, "Failed to output index file\n");
 729                                 }
 730                         }
 731                 }
 732                 break;
 733
 734                 default:
 735                         fprintf(stderr, "skipping file..\n");
 736                         continue;
 737         }
 738
 739                 /* free the memory containing the code-stream */
 740                 free(src);
 741                 src = NULL;
 742
 743                 /* create output image */
 744                 /* ------------------- */
 745                 switch (parameters.cod_format) {
 746                 case PXM_DFMT:                  /* PNM PGM PPM */
 747                         if (imagetopnm(image, parameters.outfile)) {
 748                                 fprintf(stdout,"Outfile %s not generated\n",parameters.outfile);
 749                         }
 750                         else {
 751                                 fprintf(stdout,"Generated Outfile %s\n",parameters.outfile);
 752                         }
 753                         break;
 754
 755                 case PGX_DFMT:                  /* PGX */
 756                         if(imagetopgx(image, parameters.outfile)){
 757                                 fprintf(stdout,"Outfile %s not generated\n",parameters.outfile);
 758                         }
 759                         else {
 760                                 fprintf(stdout,"Generated Outfile %s\n",parameters.outfile);
 761                         }
 762                         break;
 763
 764                 case BMP_DFMT:                  /* BMP */
 765                         if(imagetobmp(image, parameters.outfile)){
 766                                 fprintf(stdout,"Outfile %s not generated\n",parameters.outfile);
 767                         }
 768                         else {
 769                                 fprintf(stdout,"Generated Outfile %s\n",parameters.outfile);
 770                         }
 771                         break;
 772 #ifdef HAVE_LIBTIFF
 773                 case TIF_DFMT:                  /* TIFF */
 774                         if(imagetotif(image, parameters.outfile)){
 775                                 fprintf(stdout,"Outfile %s not generated\n",parameters.outfile);
 776                         }
 777                         else {
 778                                 fprintf(stdout,"Generated Outfile %s\n",parameters.outfile);
 779                         }
 780                         break;
 781 #endif /* HAVE_LIBTIFF */
 782                 case RAW_DFMT:                  /* RAW */
 783                         if(imagetoraw(image, parameters.outfile)){
 784                                 fprintf(stdout,"Error generating raw file. Outfile %s not generated\n",parameters.outfile);
 785                         }
 786                         else {
 787                                 fprintf(stdout,"Successfully generated Outfile %s\n",parameters.outfile);
 788                         }
 789                         break;
 790
 791                 case TGA_DFMT:                  /* TGA */
 792                         if(imagetotga(image, parameters.outfile)){
 793                                 fprintf(stdout,"Error generating tga file. Outfile %s not generated\n",parameters.outfile);
 794                         }
 795                         else {
 796                                 fprintf(stdout,"Successfully generated Outfile %s\n",parameters.outfile);
 797                         }
 798                         break;
 799 #ifdef HAVE_LIBPNG
 800                 case PNG_DFMT:                  /* PNG */
 801                         if(imagetopng(image, parameters.outfile)){
 802                                 fprintf(stdout,"Error generating png file. Outfile %s not generated\n",parameters.outfile);
 803                         }
 804                         else {
 805                                 fprintf(stdout,"Successfully generated Outfile %s\n",parameters.outfile);
 806                         }
 807                         break;
 808 #endif /* HAVE_LIBPNG */
 809 /* Can happen if output file is TIFF or PNG
 810  * and HAVE_LIBTIF or HAVE_LIBPNG is undefined
 811 */
 812                         default:
 813                                 fprintf(stderr,"Outfile %s not generated\n",parameters.outfile);
 814                 }
 815
 816                 /* free remaining structures */
 817                 if(dinfo) {
 818                         opj_destroy_decompress(dinfo);
 819                 }
 820                 /* free codestream information structure */
 821                 if (*indexfilename)
 822                         opj_destroy_cstr_info(&cstr_info);
 823                 /* free image data structure */
 824                 opj_image_destroy(image);
 825
 826         }
 827         return 0;
 828 }
 829 //end main
 830
 831
 832
 833