Added support for the TGA file format in the codec
[openjpeg.git] / codec / j2k_to_image.c
index 5914bccdcb36b2c8fe397f195c073de3ec3e2b41..18f478aceeb1b06cf70ec6565284cf26468512b4 100644 (file)
@@ -1,8 +1,13 @@
-/* Copyright (c) 2001 David Janssens
- * Copyright (c) 2002-2003 Yannick Verschueren
- * Copyright (c) 2002-2003 Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
- * 
- * All rights reserved. 
+/*
+ * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
+ * Copyright (c) 2002-2007, Professor Benoit Macq
+ * Copyright (c) 2001-2003, David Janssens
+ * Copyright (c) 2002-2003, Yannick Verschueren
+ * Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
+ * Copyright (c) 2005, Herve Drolon, FreeImage Team
+ * Copyright (c) 2006-2007, Parvatha Elangovan
+ * All rights reserved.
+ *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
  */
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
 
+#include "openjpeg.h"
+#include "compat/getopt.h"
+#include "convert.h"
+#include "dirent.h"
 
+#ifndef WIN32
+#define stricmp strcasecmp
+#define strnicmp strncasecmp
+#endif
 
-#include <openjpeg.h>
-#include <stdio.h>
-#include <stdlib.h>
-//#include <unistd.h>
+/* ----------------------------------------------------------------------- */
+
+#define J2K_CFMT 0
+#define JP2_CFMT 1
+#define JPT_CFMT 2
+
+#define PXM_DFMT 10
+#define PGX_DFMT 11
+#define BMP_DFMT 12
+#define YUV_DFMT 13
+#define TIF_DFMT 14
+#define RAW_DFMT 15
+#define TGA_DFMT 16
+
+/* ----------------------------------------------------------------------- */
+
+typedef struct dircnt{
+       /** Buffer for holding images read from Directory*/
+       char *filename_buf;
+       /** Pointer to the buffer*/
+       char **filename;
+}dircnt_t;
+
+
+typedef struct img_folder{
+       /** The directory path of the folder containing input images*/
+       char *imgdirpath;
+       /** Output format*/
+       char *out_format;
+       /** Enable option*/
+       char set_imgdir;
+       /** Enable Cod Format for output*/
+       char set_out_format;
 
-int ceildiv(int a, int b)
-{
-       return (a + b - 1) / b;
+}img_fol_t;
+
+void decode_help_display() {
+       fprintf(stdout,"HELP\n----\n\n");
+       fprintf(stdout,"- the -h option displays this help information on screen\n\n");
+
+/* UniPG>> */
+       fprintf(stdout,"List of parameters for the JPEG 2000 "
+#ifdef USE_JPWL
+               "+ JPWL "
+#endif /* USE_JPWL */
+               "decoder:\n");
+/* <<UniPG */
+       fprintf(stdout,"\n");
+       fprintf(stdout,"\n");
+       fprintf(stdout,"  -ImgDir \n");
+       fprintf(stdout,"        Image file Directory path \n");
+       fprintf(stdout,"  -OutFor \n");
+       fprintf(stdout,"    REQUIRED only if -ImgDir is used\n");
+       fprintf(stdout,"          Need to specify only format without filename <BMP>  \n");
+       fprintf(stdout,"    Currently accepts PGM, PPM, PNM, PGX, BMP, TIF, RAW and TGA formats\n");
+       fprintf(stdout,"  -i <compressed file>\n");
+       fprintf(stdout,"    REQUIRED only if an Input image directory not specified\n");
+       fprintf(stdout,"    Currently accepts J2K-files, JP2-files and JPT-files. The file type\n");
+       fprintf(stdout,"    is identified based on its suffix.\n");
+       fprintf(stdout,"  -o <decompressed file>\n");
+       fprintf(stdout,"    REQUIRED\n");
+       fprintf(stdout,"    Currently accepts PGM, PPM, PNM, PGX, BMP, TIF, RAW and TGA files\n");
+       fprintf(stdout,"    Binary data is written to the file (not ascii). If a PGX\n");
+       fprintf(stdout,"    filename is given, there will be as many output files as there are\n");
+       fprintf(stdout,"    components: an indice starting from 0 will then be appended to the\n");
+       fprintf(stdout,"    output filename, just before the \"pgx\" extension. If a PGM filename\n");
+       fprintf(stdout,"    is given and there are more than one component, only the first component\n");
+       fprintf(stdout,"    will be written to the file.\n");
+       fprintf(stdout,"  -r <reduce factor>\n");
+       fprintf(stdout,"    Set the number of highest resolution levels to be discarded. The\n");
+       fprintf(stdout,"    image resolution is effectively divided by 2 to the power of the\n");
+       fprintf(stdout,"    number of discarded levels. The reduce factor is limited by the\n");
+       fprintf(stdout,"    smallest total number of decomposition levels among tiles.\n");
+       fprintf(stdout,"  -l <number of quality layers to decode>\n");
+       fprintf(stdout,"    Set the maximum number of quality layers to decode. If there are\n");
+       fprintf(stdout,"    less quality layers than the specified number, all the quality layers\n");
+       fprintf(stdout,"    are decoded.\n");
+/* UniPG>> */
+#ifdef USE_JPWL
+       fprintf(stdout,"  -W <options>\n");
+       fprintf(stdout,"    Activates the JPWL correction capability, if the codestream complies.\n");
+       fprintf(stdout,"    Options can be a comma separated list of <param=val> tokens:\n");
+       fprintf(stdout,"    c, c=numcomps\n");
+       fprintf(stdout,"       numcomps is the number of expected components in the codestream\n");
+       fprintf(stdout,"       (search of first EPB rely upon this, default is %d)\n", JPWL_EXPECTED_COMPONENTS);
+#endif /* USE_JPWL */
+/* <<UniPG */
+       fprintf(stdout,"\n");
 }
 
-int main(int argc, char **argv)
-{
-       FILE *f;
-       char *src, *src_name;
-       char *dest, S1, S2, S3;
-       int len;
-       j2k_image_t *img;
-       j2k_cp_t *cp;
-       int w, h, max;
-       int i, image_type = -1, compno;
-       int adjust;
-
-       if (argc < 3) {
-               fprintf(stderr, "usage: %s j2k-file pnm-file\n", argv[0]);
-               return 1;
+/* -------------------------------------------------------------------------- */
+
+int get_num_images(char *imgdirpath){
+       DIR *dir;
+       struct dirent* content; 
+       int num_images = 0;
+
+       /*Reading the input images from given input directory*/
+
+       dir= opendir(imgdirpath);
+       if(!dir){
+               fprintf(stderr,"Could not open Folder %s\n",imgdirpath);
+               return 0;
+       }
+       
+       while((content=readdir(dir))!=NULL){
+               if(strcmp(".",content->d_name)==0 || strcmp("..",content->d_name)==0 )
+                       continue;
+               num_images++;
        }
+       return num_images;
+}
+
+int load_images(dircnt_t *dirptr, char *imgdirpath){
+       DIR *dir;
+       struct dirent* content; 
+       int i = 0;
 
-       f = fopen(argv[1], "rb");
-       if (!f) {
-               fprintf(stderr, "failed to open %s for reading\n", argv[1]);
+       /*Reading the input images from given input directory*/
+
+       dir= opendir(imgdirpath);
+       if(!dir){
+               fprintf(stderr,"Could not open Folder %s\n",imgdirpath);
                return 1;
+       }else   {
+               fprintf(stderr,"Folder opened successfully\n");
        }
+       
+       while((content=readdir(dir))!=NULL){
+               if(strcmp(".",content->d_name)==0 || strcmp("..",content->d_name)==0 )
+                       continue;
 
-       dest = argv[2];
+               strcpy(dirptr->filename[i],content->d_name);
+               i++;
+       }
+       return 0;       
+}
 
-       while (*dest) {
-               dest++;
+int get_file_format(char *filename) {
+       unsigned int i;
+       static const char *extension[] = {"pgx", "pnm", "pgm", "ppm", "bmp","tif", "raw", "tga", "j2k", "jp2", "jpt", "j2c" };
+       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 };
+       char * ext = strrchr(filename, '.');
+       if (ext == NULL)
+               return -1;
+       ext++;
+       if(ext) {
+               for(i = 0; i < sizeof(format)/sizeof(*format); i++) {
+                       if(_strnicmp(ext, extension[i], 3) == 0) {
+                               return format[i];
+                       }
+               }
        }
-       dest--;
-       S3 = *dest;
-       dest--;
-       S2 = *dest;
-       dest--;
-       S1 = *dest;
-
-       if ((S1 == 'p' && S2 == 'g' && S3 == 'x') || (S1 == 'P' && S2 == 'G' && S3 == 'X')) {
-               image_type = 0;
+
+       return -1;
+}
+
+char get_next_file(int imageno,dircnt_t *dirptr,img_fol_t *img_fol, opj_dparameters_t *parameters){
+       char image_filename[OPJ_PATH_LEN], infilename[OPJ_PATH_LEN],outfilename[OPJ_PATH_LEN],temp_ofname[OPJ_PATH_LEN];
+
+       strcpy(image_filename,dirptr->filename[imageno]);
+       fprintf(stderr,"File Number %d \"%s\"\n",imageno,image_filename);
+       parameters->decod_format = get_file_format(image_filename);
+       if (parameters->decod_format == -1)
+               return 1;
+       sprintf(infilename,"%s/%s",img_fol->imgdirpath,image_filename);
+       strncpy(parameters->infile, infilename, sizeof(infilename));
+
+       //Set output file
+       strcpy(temp_ofname,strtok(image_filename,"."));
+       if(img_fol->set_out_format==1){
+               sprintf(outfilename,"%s/%s.%s",img_fol->imgdirpath,temp_ofname,img_fol->out_format);
+               strncpy(parameters->outfile, outfilename, sizeof(outfilename));
        }
+       return 0;
+}
+
+
+/* -------------------------------------------------------------------------- */
+
+int parse_cmdline_decoder(int argc, char **argv, opj_dparameters_t *parameters,img_fol_t *img_fol) {
+       /* parse the command line */
+       int totlen;
+       option_t long_option[]={
+               {"ImgDir",REQ_ARG, NULL ,'y'},
+               {"OutFor",REQ_ARG, NULL ,'O'},
+       };
+
+       const char optlist[] = "i:o:r:l:h"
+
+/* UniPG>> */
+#ifdef USE_JPWL
+                                       "W:"
+#endif /* USE_JPWL */
+/* <<UniPG */
+                                       ;
+       totlen=sizeof(long_option);
+       img_fol->set_out_format = 0;
+       while (1) {
+               int c = getopt_long(argc, argv,optlist,long_option,totlen);
+               if (c == -1)
+                       break;
+               switch (c) {
+                       case 'i':                       /* input file */
+                       {
+                               char *infile = optarg;
+                               parameters->decod_format = get_file_format(infile);
+                               switch(parameters->decod_format) {
+                                       case J2K_CFMT:
+                                       case JP2_CFMT:
+                                       case JPT_CFMT:
+                                               break;
+                                       default:
+                                               fprintf(stderr, 
+                                                       "!! Unrecognized format for infile : %s [accept only *.j2k, *.jp2, *.jpc or *.jpt] !!\n\n", 
+                                                       infile);
+                                               return 1;
+                               }
+                               strncpy(parameters->infile, infile, sizeof(parameters->infile)-1);
+                       }
+                       break;
+                               
+                               /* ----------------------------------------------------- */
 
-       if ((S1 == 'p' && S2 == 'n' && S3 == 'm')|| (S1 == 'P' && S2 == 'N' && S3 == 'M') || 
-           (S1 == 'p' && S2 == 'g' && S3 == 'm')|| (S1 == 'P' && S2 == 'G' && S3 == 'M') || 
-           (S1 == 'P' && S2 == 'P' && S3 == 'M')|| (S1 == 'p' && S2 == 'p' && S3 == 'm')) {
-               image_type = 1;
+                       case 'o':                       /* output file */
+                       {
+                               char *outfile = optarg;
+                               parameters->cod_format = get_file_format(outfile);
+                               switch(parameters->cod_format) {
+                                       case PGX_DFMT:
+                                       case PXM_DFMT:
+                                       case BMP_DFMT:
+                                       case TIF_DFMT:
+                                       case RAW_DFMT:
+                                       case TGA_DFMT:
+                                               break;
+                                       default:
+                                               fprintf(stderr, "Unknown output format image %s [only *.pnm, *.pgm, *.ppm, *.pgx, *.bmp, *.tif, *.raw or *.tga]!! \n", outfile);
+                                               return 1;
+                               }
+                               strncpy(parameters->outfile, outfile, sizeof(parameters->outfile)-1);
+                       }
+                       break;
+                       
+                               /* ----------------------------------------------------- */
+
+                       case 'O':                       /* output format */
+                       {
+                               char outformat[50];
+                               char *of = optarg;
+                               sprintf(outformat,".%s",of);
+                               img_fol->set_out_format = 1;
+                               parameters->cod_format = get_file_format(outformat);
+                               switch(parameters->cod_format) {
+                                       case PGX_DFMT:
+                                               img_fol->out_format = "pgx";
+                                               break;
+                                       case PXM_DFMT:
+                                               img_fol->out_format = "ppm";
+                                               break;
+                                       case BMP_DFMT:
+                                               img_fol->out_format = "bmp";
+                                               break;
+                                       case TIF_DFMT:
+                                               img_fol->out_format = "tif";
+                                               break;
+                                       case RAW_DFMT:
+                                               img_fol->out_format = "raw";
+                                               break;
+                                       case TGA_DFMT:
+                                               img_fol->out_format = "raw";
+                                               break;
+                                       default:
+                                               fprintf(stderr, "Unknown output format image %s [only *.pnm, *.pgm, *.ppm, *.pgx, *.bmp, *.tif, *.raw or *.tga]!! \n", outformat);
+                                               return 1;
+                                               break;
+                               }
+                       }
+                       break;
+
+                               /* ----------------------------------------------------- */
+
+
+                       case 'r':               /* reduce option */
+                       {
+                               sscanf(optarg, "%d", &parameters->cp_reduce);
+                       }
+                       break;
+                       
+                               /* ----------------------------------------------------- */
+      
+
+                       case 'l':               /* layering option */
+                       {
+                               sscanf(optarg, "%d", &parameters->cp_layer);
+                       }
+                       break;
+                       
+                               /* ----------------------------------------------------- */
+
+                       case 'h':                       /* display an help description */
+                               decode_help_display();
+                               return 1;                               
+
+                               /* ------------------------------------------------------ */
+
+                       case 'y':                       /* Image Directory path */
+                               {
+                                       img_fol->imgdirpath = (char*)malloc(strlen(optarg) + 1);
+                                       strcpy(img_fol->imgdirpath,optarg);
+                                       img_fol->set_imgdir=1;
+                               }
+                               break;
+                               /* ----------------------------------------------------- */
+/* UniPG>> */
+#ifdef USE_JPWL
+                       
+                       case 'W':                       /* activate JPWL correction */
+                       {
+                               char *token = NULL;
+
+                               token = strtok(optarg, ",");
+                               while(token != NULL) {
+
+                                       /* search expected number of components */
+                                       if (*token == 'c') {
+
+                                               static int compno;
+
+                                               compno = JPWL_EXPECTED_COMPONENTS; /* predefined no. of components */
+
+                                               if(sscanf(token, "c=%d", &compno) == 1) {
+                                                       /* Specified */
+                                                       if ((compno < 1) || (compno > 256)) {
+                                                               fprintf(stderr, "ERROR -> invalid number of components c = %d\n", compno);
+                                                               return 1;
+                                                       }
+                                                       parameters->jpwl_exp_comps = compno;
+
+                                               } else if (!strcmp(token, "c")) {
+                                                       /* default */
+                                                       parameters->jpwl_exp_comps = compno; /* auto for default size */
+
+                                               } else {
+                                                       fprintf(stderr, "ERROR -> invalid components specified = %s\n", token);
+                                                       return 1;
+                                               };
+                                       }
+
+                                       /* search maximum number of tiles */
+                                       if (*token == 't') {
+
+                                               static int tileno;
+
+                                               tileno = JPWL_MAXIMUM_TILES; /* maximum no. of tiles */
+
+                                               if(sscanf(token, "t=%d", &tileno) == 1) {
+                                                       /* Specified */
+                                                       if ((tileno < 1) || (tileno > JPWL_MAXIMUM_TILES)) {
+                                                               fprintf(stderr, "ERROR -> invalid number of tiles t = %d\n", tileno);
+                                                               return 1;
+                                                       }
+                                                       parameters->jpwl_max_tiles = tileno;
+
+                                               } else if (!strcmp(token, "t")) {
+                                                       /* default */
+                                                       parameters->jpwl_max_tiles = tileno; /* auto for default size */
+
+                                               } else {
+                                                       fprintf(stderr, "ERROR -> invalid tiles specified = %s\n", token);
+                                                       return 1;
+                                               };
+                                       }
+
+                                       /* next token or bust */
+                                       token = strtok(NULL, ",");
+                               };
+                               parameters->jpwl_correct = true;
+                               fprintf(stdout, "JPWL correction capability activated\n");
+                               fprintf(stdout, "- expecting %d components\n", parameters->jpwl_exp_comps);
+                       }
+                       break;  
+#endif /* USE_JPWL */
+/* <<UniPG */            
+
+                               /* ----------------------------------------------------- */
+                       
+                       default:
+                               fprintf(stderr,"WARNING -> this option is not valid \"-%c %s\"\n",c, optarg);
+                               break;
+               }
        }
 
-       if ((S1 == 'b' && S2 == 'm' && S3 == 'p') || (S1 == 'B' && S2 == 'M' && S3 == 'P')) {
-               image_type = 2;
+       /* check for possible errors */
+       if(img_fol->set_imgdir==1){
+               if(!(parameters->infile[0]==0)){
+                       fprintf(stderr, "Error: options -ImgDir and -i cannot be used together !!\n");
+                       return 1;
+               }
+               if(img_fol->set_out_format == 0){
+                       fprintf(stderr, "Error: When -ImgDir is used, -OutFor <FORMAT> must be used !!\n");
+                       fprintf(stderr, "Only one format allowed! Valid format PGM, PPM, PNM, PGX, BMP, TIF, RAW and TGA!!\n");
+                       return 1;
+               }
+               if(!((parameters->outfile[0] == 0))){
+                       fprintf(stderr, "Error: options -ImgDir and -o cannot be used together !!\n");
+                       return 1;
+               }
+       }else{
+               if((parameters->infile[0] == 0) || (parameters->outfile[0] == 0)) {
+                       fprintf(stderr, "Error: One of the options -i or -ImgDir must be specified\n");
+                       fprintf(stderr, "Error: When using -i, -o must be used\n");
+                       fprintf(stderr, "usage: image_to_j2k -i *.j2k/jp2/j2c -o *.pgm/ppm/pnm/pgx/bmp/tif/raw/tga(+ options)\n");
+                       return 1;
+               }
        }
 
-       if (image_type == -1) {
-               fprintf(stderr, "!! Unrecognized format for infile : %c%c%c [accept only *.pnm, *.pgm, *.ppm, *.pgx or *.bmp] !!\n\n",S1,S2,S3);
-               return 1;
+       return 0;
+}
+
+/* -------------------------------------------------------------------------- */
+
+/**
+sample error callback expecting a FILE* client object
+*/
+void error_callback(const char *msg, void *client_data) {
+       FILE *stream = (FILE*)client_data;
+       fprintf(stream, "[ERROR] %s", msg);
+}
+/**
+sample warning callback expecting a FILE* client object
+*/
+void warning_callback(const char *msg, void *client_data) {
+       FILE *stream = (FILE*)client_data;
+       fprintf(stream, "[WARNING] %s", msg);
+}
+/**
+sample debug callback expecting no client object
+*/
+void info_callback(const char *msg, void *client_data) {
+       (void)client_data;
+       fprintf(stdout, "[INFO] %s", msg);
+}
+
+/* -------------------------------------------------------------------------- */
+
+int main(int argc, char **argv) {
+       opj_dparameters_t parameters;   /* decompression parameters */
+       img_fol_t img_fol;
+       opj_event_mgr_t event_mgr;              /* event manager */
+       opj_image_t *image = NULL;
+       FILE *fsrc = NULL;
+       unsigned char *src = NULL;
+       int file_length;
+       int num_images;
+       int i,imageno;
+       dircnt_t *dirptr;
+       opj_dinfo_t* dinfo = NULL;      /* handle to a decompressor */
+       opj_cio_t *cio = NULL;
+
+       /* configure the event callbacks (not required) */
+       memset(&event_mgr, 0, sizeof(opj_event_mgr_t));
+       event_mgr.error_handler = error_callback;
+       event_mgr.warning_handler = warning_callback;
+       event_mgr.info_handler = info_callback;
+
+       /* set decoding parameters to default values */
+       opj_set_default_decoder_parameters(&parameters);
+
+
+       /* parse input and get user encoding parameters */
+       if(parse_cmdline_decoder(argc, argv, &parameters,&img_fol) == 1) {
+               return 0;
        }
 
-       fseek(f, 0, SEEK_END);
-       len = ftell(f);
-       fseek(f, 0, SEEK_SET);
-       src = (char *) malloc(len);
-       fread(src, 1, len, f);
-       fclose(f);
+       if(img_fol.set_imgdir==1){      
+               num_images=get_num_images(img_fol.imgdirpath);
 
-       src_name=argv[1];
-       while (*src_name) {
-               src_name++;
+               dirptr=(dircnt_t*)malloc(sizeof(dircnt_t));
+               if(dirptr){
+                       dirptr->filename_buf = (char*)malloc(num_images*OPJ_PATH_LEN*sizeof(char));     // Stores at max 10 image file names
+                       dirptr->filename = (char**) malloc(num_images*sizeof(char*));
+
+                       if(!dirptr->filename_buf){
+                               return 0;
+                       }
+                       for(i=0;i<num_images;i++){
+                               dirptr->filename[i] = dirptr->filename_buf + i*OPJ_PATH_LEN;
+                       }
+               }
+               if(load_images(dirptr,img_fol.imgdirpath)==1){
+                       return 0;
+               }
+               if (num_images==0){
+                       fprintf(stdout,"Folder is empty\n");
+                       return 0;
+               }
+       }else{
+               num_images=1;
        }
-       src_name--;
-       S3 = *src_name;
-       src_name--;
-       S2 = *src_name;
-       src_name--;
-       S1 = *src_name;
-
-       if (S1 == 'j' && S2 == '2' && S3 == 'k')
-         {
-           if (!j2k_decode(src, len, &img, &cp)) {
-             fprintf(stderr, "j2k_to_image: failed to decode image!\n");
-             return 1;
-           }
-         }
-       else
-         {
-           if (S1 == 'j' && S2 == 'p' && S3 == 't')
-             { 
-               if (!j2k_decode_jpt_stream(src, len, &img, &cp)) {
-                 fprintf(stderr, "j2k_to_image: failed to decode image!\n");
-                 return 1;
+
+       /*Encoding image one by one*/
+       for(imageno = 0; imageno < num_images ; imageno++)
+       {
+
+               image = NULL;
+               fprintf(stderr,"\n");
+
+               if(img_fol.set_imgdir==1){
+                       if (get_next_file(imageno, dirptr,&img_fol, &parameters)) {
+                               fprintf(stderr,"skipping file...\n");
+                               continue;
+                       }
+
                }
-             }
-           else
-             {
-               fprintf(stderr,"j2k_to_image : Unknown format image *.%c%c%c [only *.j2k or *.jpt]!! \n",S1,S2,S3);
-               return 1;
-             }
-         }
 
-       free(src);
-       /* ------------------  CREATE OUT IMAGE WITH THE RIGHT FORMAT ----------------------- */
 
-       /* ---------------------------- / */
-       /* /                            / */
-       /* /  FORMAT : PNM, PGM or PPM  / */
-       /* /                            / */
-       /* ---------------------------- / */
-       
-       switch (image_type)
-         {     
-         case 1: /* PNM PGM PPM*/
-           if (img->numcomps == 3 && img->comps[0].dx == img->comps[1].dx
-               && img->comps[1].dx == img->comps[2].dx
-               && img->comps[0].dy == img->comps[1].dy
-               && img->comps[1].dy == img->comps[2].dy
-               && img->comps[0].prec == img->comps[1].prec
-               && img->comps[1].prec == img->comps[2].prec) 
-             {
-               f = fopen(argv[2], "wb");
-               w = ceildiv(img->x1 - img->x0, img->comps[0].dx);
-               h = ceildiv(img->y1 - img->y0, img->comps[0].dy);
-               //max = (1 << img->comps[0].prec) - 1;
-               max =img->comps[0].prec>8? 255:(1 << img->comps[0].prec) - 1;
-               fprintf(f, "P6\n%d %d\n%d\n", w, h, max);
-               adjust=img->comps[0].prec>8?img->comps[0].prec-8:0;
-               for (i = 0; i < w * h; i++) 
-                 {
-                   char r, g, b;
-                   r = img->comps[0].data[i];
-                   r+=(img->comps[0].sgnd? 1 << (img->comps[0].prec-1):0);
-                   r=r>>adjust;                         
-                   
-                   g = img->comps[1].data[i];
-                   g+=(img->comps[1].sgnd? 1 << (img->comps[1].prec-1):0);
-                   g=g>>adjust;
-                   
-                   b = img->comps[2].data[i];
-                   b+=(img->comps[2].sgnd? 1 << (img->comps[2].prec-1):0);
-                   b=b>>adjust;
-                   
-                   fprintf(f, "%c%c%c", r, g, b);
-                 }
-               fclose(f);
-             } else 
-               { 
-                 for (compno = 0; compno < img->numcomps; compno++) 
-                   {
-                     char name[256];
-                     if (img->numcomps > 1) {
-                       sprintf(name, "%d.%s", compno, argv[2]);
-                     } else 
-                       {
-                         sprintf(name, "%s", argv[2]);
+               /* read the input file and put it in memory */
+               /* ---------------------------------------- */
+               fsrc = fopen(parameters.infile, "rb");
+               if (!fsrc) {
+                       fprintf(stderr, "ERROR -> failed to open %s for reading\n", parameters.infile);
+                       return 1;
+               }
+               fseek(fsrc, 0, SEEK_END);
+               file_length = ftell(fsrc);
+               fseek(fsrc, 0, SEEK_SET);
+               src = (unsigned char *) malloc(file_length);
+               fread(src, 1, file_length, fsrc);
+               fclose(fsrc);
+
+
+
+               /* decode the code-stream */
+               /* ---------------------- */
+
+               switch(parameters.decod_format) {
+               case J2K_CFMT:
+               {
+                       /* JPEG-2000 codestream */
+
+                       /* get a decoder handle */
+                       dinfo = opj_create_decompress(CODEC_J2K);
+
+                       /* catch events using our callbacks and give a local context */
+                       opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr);
+
+                       /* setup the decoder decoding parameters using user parameters */
+                       opj_setup_decoder(dinfo, &parameters);
+
+                       /* open a byte stream */
+                       cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
+
+                       /* decode the stream and fill the image structure */
+                       image = opj_decode(dinfo, cio);
+                       if(!image) {
+                               fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
+                               opj_destroy_decompress(dinfo);
+                               opj_cio_close(cio);
+                               return 1;
                        }
-                     f = fopen(name, "wb");
-                     w = ceildiv(img->x1 - img->x0, img->comps[compno].dx);
-                     h = ceildiv(img->y1 - img->y0, img->comps[compno].dy);
-                     max =img->comps[compno].prec>8? 255:(1 << img->comps[compno].prec) - 1;
-                     fprintf(f, "P5\n%d %d\n%d\n", w, h, max);
-                     adjust=img->comps[compno].prec>8?img->comps[compno].prec-8:0;
-                     for (i = 0; i < w * h; i++) 
-                       {
-                         char l;
-                         l = img->comps[compno].data[i];
-                         l+=(img->comps[compno].sgnd? 1 << (img->comps[compno].prec-1):0);
-                         l=l>>adjust;
-                         fprintf(f, "%c", l);
+
+                       /* close the byte stream */
+                       opj_cio_close(cio);
+               }
+               break;
+
+               case JP2_CFMT:
+               {
+                       /* JPEG 2000 compressed image data */
+
+                       /* get a decoder handle */
+                       dinfo = opj_create_decompress(CODEC_JP2);
+
+                       /* catch events using our callbacks and give a local context */
+                       opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr);
+
+                       /* setup the decoder decoding parameters using the current image and user parameters */
+                       opj_setup_decoder(dinfo, &parameters);
+
+                       /* open a byte stream */
+                       cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
+
+                       /* decode the stream and fill the image structure */
+                       image = opj_decode(dinfo, cio);
+                       if(!image) {
+                               fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
+                               opj_destroy_decompress(dinfo);
+                               opj_cio_close(cio);
+                               return 1;
                        }
-                     fclose(f);
-                   }
+
+                       /* close the byte stream */
+                       opj_cio_close(cio);
+
                }
-           break ;
-           
-           /* ------------------------ / */
-           /* /                        / */
-           /* /     FORMAT : PGX       / */
-           /* /                        / */
-           /* /----------------------- / */
-         case 0: /* PGX */
-           for (compno = 0; compno < img->numcomps; compno++) 
-             {
-               j2k_comp_t *comp = &img->comps[compno];
-               char name[256];
-               if (img->numcomps>1)
-                 sprintf(name, "%d_%s", compno, argv[2]);
-               else
-                 sprintf(name, "%s", argv[2]);
-               f = fopen(name, "wb");
-               w = ceildiv(img->x1 - img->x0, comp->dx);
-               h = ceildiv(img->y1 - img->y0, comp->dy);
-               fprintf(f, "PG LM %c %d %d %d\n", comp->sgnd ? '-' : '+', comp->prec, w, h);
-               for (i = 0; i < w * h; i++) 
-                 {
-                   int v = img->comps[compno].data[i];
-                   if (comp->prec <= 8) 
-                     {
-                       char c = (char) v;
-                       fwrite(&c, 1, 1, f);
-                     } else if (comp->prec <= 16) 
-                       {
-                         short s = (short) v;
-                         fwrite(&s, 2, 1, f);
-                       } else 
-                         {
-                           fwrite(&v, 4, 1, f);
-                         }
-                 }
-               fclose(f);
-             }
-           break ;
-           
-           /* ------------------------ / */
-           /* /                        / */
-           /* /     FORMAT : BMP       / */
-           /* /                        / */
-           /* /----------------------- / */
-           
-         case 2:  /* BMP */
-           if (img->numcomps == 3 && img->comps[0].dx == img->comps[1].dx
-               && img->comps[1].dx == img->comps[2].dx
-               && img->comps[0].dy == img->comps[1].dy
-               && img->comps[1].dy == img->comps[2].dy
-               && img->comps[0].prec == img->comps[1].prec
-               && img->comps[1].prec == img->comps[2].prec) 
-             {
-               /* -->> -->> -->> -->>
-                  
-                  24 bits color
-                  
-                  <<-- <<-- <<-- <<-- */
-               
-               f = fopen(argv[2], "wb");
-               w = ceildiv(img->x1 - img->x0, img->comps[0].dx);
-               h = ceildiv(img->y1 - img->y0, img->comps[0].dy);
-               
-               fprintf(f, "BM");
-               
-               /* FILE HEADER */
-               /* ------------- */
-               fprintf(f, "%c%c%c%c",
-                       (unsigned char) (h * w * 3 + 3 * h * (w % 2) + 54) & 0xff,
-                       (unsigned char) ((h * w * 3 + 3 * h * (w % 2) + 54) >> 8) & 0xff,
-                       (unsigned char) ((h * w * 3 + 3 * h * (w % 2) + 54) >> 16) & 0xff,
-                       (unsigned char) ((h * w * 3 + 3 * h * (w % 2) + 54) >> 24) & 0xff);
-               fprintf(f, "%c%c%c%c", (0) & 0xff, ((0) >> 8) & 0xff, ((0) >> 16) & 0xff, ((0) >> 24) & 0xff);
-               fprintf(f, "%c%c%c%c", (54) & 0xff, ((54) >> 8) & 0xff, ((54) >> 16) & 0xff, ((54) >> 24) & 0xff);
-               
-               /* INFO HEADER   */
-               /* ------------- */
-               fprintf(f, "%c%c%c%c", (40) & 0xff, ((40) >> 8) & 0xff, ((40) >> 16) & 0xff, ((40) >> 24) & 0xff);
-               fprintf(f, "%c%c%c%c", (unsigned char) ((w) & 0xff),(unsigned char) ((w) >> 8) & 0xff,
-                       (unsigned char) ((w) >> 16) & 0xff, (unsigned char) ((w) >> 24) & 0xff);
-               fprintf(f, "%c%c%c%c", (unsigned char) ((h) & 0xff), (unsigned char) ((h) >> 8) & 0xff,
-                       (unsigned char) ((h) >> 16) & 0xff, (unsigned char) ((h) >> 24) & 0xff);
-               fprintf(f, "%c%c", (1) & 0xff, ((1) >> 8) & 0xff);
-               fprintf(f, "%c%c", (24) & 0xff, ((24) >> 8) & 0xff);
-               fprintf(f, "%c%c%c%c", (0) & 0xff, ((0) >> 8) & 0xff, ((0) >> 16) & 0xff, ((0) >> 24) & 0xff);
-               fprintf(f, "%c%c%c%c", (unsigned char) (3 * h * w + 3 * h * (w % 2)) & 0xff,
-                       (unsigned char) ((h * w * 3 + 3 * h * (w % 2)) >> 8) & 0xff,
-                       (unsigned char) ((h * w * 3 + 3 * h * (w % 2)) >> 16) & 0xff,
-                       (unsigned char) ((h * w * 3 + 3 * h * (w % 2)) >> 24) & 0xff);
-               fprintf(f, "%c%c%c%c", (7834) & 0xff, ((7834) >> 8) & 0xff, ((7834) >> 16) & 0xff, ((7834) >> 24) & 0xff);
-               fprintf(f, "%c%c%c%c", (7834) & 0xff, ((7834) >> 8) & 0xff, ((7834) >> 16) & 0xff, ((7834) >> 24) & 0xff);
-               fprintf(f, "%c%c%c%c", (0) & 0xff, ((0) >> 8) & 0xff, ((0) >> 16) & 0xff, ((0) >> 24) & 0xff);
-               fprintf(f, "%c%c%c%c", (0) & 0xff, ((0) >> 8) & 0xff, ((0) >> 16) & 0xff, ((0) >> 24) & 0xff);
-               
-               for (i = 0; i < w * h; i++) 
-                 {
-                   unsigned char R, G, B;
-                   
-                   R = img->comps[0].data[w * h - ((i) / (w) + 1) * w + (i) % (w)];
-                   G = img->comps[1].data[w * h - ((i) / (w) + 1) * w + (i) % (w)];
-                   B = img->comps[2].data[w * h - ((i) / (w) + 1) * w + (i) % (w)];
-                   fprintf(f, "%c%c%c", B, G, R);
-                   if (((i + 1) % w == 0 && w % 2))
-                     fprintf(f, "%c%c%c", (0) & 0xff, ((0) >> 8) & 0xff, ((0) >> 16) & 0xff);
-                 }
-               fclose(f);
-             } else    
-               {   /* Gray-scale */
-                 
-                 /* -->> -->> -->> -->>
-                    
-                    8 bits non code (Gray scale)
-                    
-                    <<-- <<-- <<-- <<-- */
-                 f = fopen(argv[2], "wb");
-                 w = ceildiv(img->x1 - img->x0, img->comps[0].dx);
-                 h = ceildiv(img->y1 - img->y0, img->comps[0].dy);
-                 
-                 fprintf(f, "BM");
-                 
-                 /* FILE HEADER */
-                 /* ------------- */
-                 fprintf(f, "%c%c%c%c",
-                         (unsigned char) (h * w + 54 + 1024 + h * (w % 2)) & 0xff,
-                         (unsigned char) ((h * w + 54 + 1024 + h * (w % 2)) >> 8) & 0xff,
-                         (unsigned char) ((h * w + 54 + 1024 + h * (w % 2)) >> 16) & 0xff,
-                         (unsigned char) ((h * w + 54 + 1024 + w * (w % 2)) >> 24) & 0xff);
-                 fprintf(f, "%c%c%c%c", (0) & 0xff, ((0) >> 8) & 0xff, ((0) >> 16) & 0xff, ((0) >> 24) & 0xff);
-                 fprintf(f, "%c%c%c%c", (54 + 1024) & 0xff, ((54 + 1024) >> 8) & 0xff,
-                         ((54 + 1024) >> 16) & 0xff, ((54 + 1024) >> 24) & 0xff);
-                 
-                 /* INFO HEADER */
-                 /* ------------- */
-                 fprintf(f, "%c%c%c%c", (40) & 0xff, ((40) >> 8) & 0xff, ((40) >> 16) & 0xff, ((40) >> 24) & 0xff);
-                 fprintf(f, "%c%c%c%c", (unsigned char) ((w) & 0xff), (unsigned char) ((w) >> 8) & 0xff,
-                         (unsigned char) ((w) >> 16) & 0xff, (unsigned char) ((w) >> 24) & 0xff);
-                 fprintf(f, "%c%c%c%c", (unsigned char) ((h) & 0xff), (unsigned char) ((h) >> 8) & 0xff,
-                         (unsigned char) ((h) >> 16) & 0xff, (unsigned char) ((h) >> 24) & 0xff);
-                 fprintf(f, "%c%c", (1) & 0xff, ((1) >> 8) & 0xff);
-                 fprintf(f, "%c%c", (8) & 0xff, ((8) >> 8) & 0xff);
-                 fprintf(f, "%c%c%c%c", (0) & 0xff, ((0) >> 8) & 0xff, ((0) >> 16) & 0xff, ((0) >> 24) & 0xff);
-                 fprintf(f, "%c%c%c%c", (unsigned char) (h * w + h * (w % 2)) & 0xff,
-                         (unsigned char) ((h * w + h * (w % 2)) >> 8) & 0xff,
-                         (unsigned char) ((h * w + h * (w % 2)) >> 16) & 0xff,
-                         (unsigned char) ((h * w + h * (w % 2)) >> 24) & 0xff);
-                 fprintf(f, "%c%c%c%c", (7834) & 0xff, ((7834) >> 8) & 0xff, ((7834) >> 16) & 0xff, ((7834) >> 24) & 0xff);
-                 fprintf(f, "%c%c%c%c", (7834) & 0xff, ((7834) >> 8) & 0xff, ((7834) >> 16) & 0xff, ((7834) >> 24) & 0xff);
-                 fprintf(f, "%c%c%c%c", (256) & 0xff, ((256) >> 8) & 0xff, ((256) >> 16) & 0xff, ((256) >> 24) & 0xff);
-                 fprintf(f, "%c%c%c%c", (256) & 0xff, ((256) >> 8) & 0xff, ((256) >> 16) & 0xff, ((256) >> 24) & 0xff);
+               break;
+
+               case JPT_CFMT:
+               {
+                       /* JPEG 2000, JPIP */
+
+                       /* get a decoder handle */
+                       dinfo = opj_create_decompress(CODEC_JPT);
+
+                       /* catch events using our callbacks and give a local context */
+                       opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr);
+
+                       /* setup the decoder decoding parameters using user parameters */
+                       opj_setup_decoder(dinfo, &parameters);
+
+                       /* open a byte stream */
+                       cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
+
+                       /* decode the stream and fill the image structure */
+                       image = opj_decode(dinfo, cio);
+                       if(!image) {
+                               fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
+                               opj_destroy_decompress(dinfo);
+                               opj_cio_close(cio);
+                               return 1;
+                       }
+
+                       /* close the byte stream */
+                       opj_cio_close(cio);
                }
-           
-           for (i = 0; i < 256; i++) 
-             {
-               fprintf(f, "%c%c%c%c", i, i, i, 0);
-             }
-           
-           for (i = 0; i < w * h; i++) 
-             {
-               fprintf(f, "%c", img->comps[0].data[w * h - ((i) / (w) + 1) * w + (i) % (w)]);
-               if (((i + 1) % w == 0 && w % 2))
-                 fprintf(f, "%c", 0);
-             }
-           break;
-         default :
-           break;
-         }
-       
+               break;
+
+               default:
+                       fprintf(stderr, "skipping file..\n");
+                       continue;
+       }
+
+               /* free the memory containing the code-stream */
+               free(src);
+               src = NULL;
+
+               /* create output image */
+               /* ------------------- */
+               switch (parameters.cod_format) {
+               case PXM_DFMT:                  /* PNM PGM PPM */
+                       if (imagetopnm(image, parameters.outfile)) {
+                               fprintf(stdout,"Outfile %s not generated\n",parameters.outfile);
+                       }
+                       else {
+                               fprintf(stdout,"Generated Outfile %s\n",parameters.outfile);
+                       }
+                       break;
+
+               case PGX_DFMT:                  /* PGX */
+                       if(imagetopgx(image, parameters.outfile)){
+                               fprintf(stdout,"Outfile %s not generated\n",parameters.outfile);
+                       }
+                       else {
+                               fprintf(stdout,"Generated Outfile %s\n",parameters.outfile);
+                       }
+                       break;
+
+               case BMP_DFMT:                  /* BMP */
+                       if(imagetobmp(image, parameters.outfile)){
+                               fprintf(stdout,"Outfile %s not generated\n",parameters.outfile);
+                       }
+                       else {
+                               fprintf(stdout,"Generated Outfile %s\n",parameters.outfile);
+                       }
+                       break;
+
+               case TIF_DFMT:                  /* TIFF */
+                       if(imagetotif(image, parameters.outfile)){
+                               fprintf(stdout,"Outfile %s not generated\n",parameters.outfile);
+                       }
+                       else {
+                               fprintf(stdout,"Generated Outfile %s\n",parameters.outfile);
+                       }
+                       break;
+
+               case RAW_DFMT:                  /* RAW */
+                       if(imagetoraw(image, parameters.outfile)){
+                               fprintf(stdout,"Error generating raw file. Outfile %s not generated\n",parameters.outfile);
+                       }
+                       else {
+                               fprintf(stdout,"Successfully generated Outfile %s\n",parameters.outfile);
+                       }
+                       break;
+
+               case TGA_DFMT:                  /* TGA */
+                       if(imagetotga(image, parameters.outfile)){
+                               fprintf(stdout,"Error generating tga file. Outfile %s not generated\n",parameters.outfile);
+                       }
+                       else {
+                               fprintf(stdout,"Successfully generated Outfile %s\n",parameters.outfile);
+                       }
+                       break;
+               }
+
+               /* free remaining structures */
+               if(dinfo) {
+                       opj_destroy_decompress(dinfo);
+               }
+               /* free image data structure */
+               opj_image_destroy(image);
+
+       }
        return 0;
 }
+//end main
+