Option to read images from a Folder whose path is specified in the Input parameters by "-ImgDir" along with output decod format specified by "-OutFor" . Modifications in image_to_j2k.c, j2k_to_image.c, getopt.c, getopt.h

Enabling use of multi character input parameters in the codec. Modifications in image_to_j2k.c, j2k_to_image.c, getopt.c, getopt.h

ChangeLog

@@ -5,6 +5,10 @@ What's New for OpenJPEG
 ! : changed
 + : added
 
+February 26, 2007
++ [Parvatha] Option to read images from a Folder whose path is specified in the Input parameters by "-ImgDir" along with output decod format specified by "-OutFor" . Modifications in image_to_j2k.c, j2k_to_image.c, getopt.c, getopt.h
++ [Parvatha] Enabling use of multi character input parameters in the codec. Modifications in image_to_j2k.c, j2k_to_image.c, getopt.c, getopt.h
+
 February 23, 2007
 * [GB] Fixed a copy-and-paste type assignment error (bool instead of int) in the JPWL section of decoder parameters structure in openjpeg.h; minor type-casting in jpwl_lib.c. As a result, now OPJViewer should run correctly when built against the most current SVN trunk of LibOpenJPEG.lib
 * [FOD] Changed version number from 1.1.0 to 1.1.1 in openjpeg.h

codec/compat/getopt.c

@@ -47,10 +47,36 @@ int opterr = 1,			/* if error message should be printed */
  optreset;			/* reset getopt */
 const char *optarg;			/* argument associated with option */
 
+typedef struct option
+{
+	char *name;
+	int has_arg;
+	int *flag;
+	int val;
+}option_t;
+
 #define	BADCH	(int)'?'
 #define	BADARG	(int)':'
 #define	EMSG	""
 
+
+
+static void getopterror(int which) {
+	static char error1[]="Unknown option `-x'.\n";
+	static char error2[]="Missing argument for `-x'.\n";
+	if (opterr) {
+		if (which) {
+			error2[23]=optopt;
+			fprintf(stderr,"%s\n",error2);
+			
+		} else {
+			error1[17]=optopt;
+			fprintf(stderr,"%s\n",error1);
+		}
+	}
+}
+
+
 /*
  * getopt --
  *	Parse argc/argv argument vector.
@@ -110,3 +136,110 @@ int getopt(int nargc, char *const *nargv, const char *ostr) {
   }
   return (optopt);		/* dump back option letter */
 }
+
+
+int getopt_long(int argc, char * const argv[], const char *optstring,
+struct option *longopts, int *longindex, int totlen) {
+	static int lastidx,lastofs;
+	char *tmp;
+	int i,len;
+again:
+	if (optind>argc || !argv[optind] || *argv[optind]!='-' || argv[optind][1]==0)
+		return -1;
+
+	if (argv[optind][0]=='-' && argv[optind][1]==0) {
+		++optind;
+		return -1;
+	}
+
+	if (argv[optind][0]=='-') {	/* long option */
+		char* arg=argv[optind]+1;
+		char* max=strchr(arg,'=');
+		const struct option* o;
+		if (!max) max=arg+strlen(arg);
+		o=longopts;
+		len=sizeof(longopts[0]);
+
+		for (i=0;i<totlen;i=i+len,o++) {
+			if (!strncmp(o->name,arg,(size_t)(max-arg))) {	/* match */
+				if (longindex) *longindex=o-longopts;
+				if (o->has_arg>0) {
+					if (*max=='=')
+						optarg=max+1;
+					else {
+						optarg=argv[optind+1];
+						if(optarg){
+							if (strchr(optarg,'-')){ /* No argument */
+								if (*optstring==':') return ':';
+								if (opterr)
+								(void) fprintf(stderr,"%s: option requires an argument %c\n",arg, optopt);
+								return (BADCH);
+								++optind;
+							}
+						}
+						if (!optarg && o->has_arg==1) {	/* no argument there */
+							if (*optstring==':') return ':';
+							if (opterr)
+							(void) fprintf(stderr,"%s: option requires an argument %c\n",arg, optopt);
+							return (BADCH);
+							++optind;
+						}
+						++optind;
+					}
+				}
+				++optind;
+				if (o->flag)
+					*(o->flag)=o->val;
+				else
+					return o->val;
+				return 0;
+			}
+		}//(end for)
+
+		if (*optstring==':') return ':';
+
+		if (lastidx!=optind) {
+			lastidx=optind; lastofs=0;
+		}
+		optopt=argv[optind][lastofs+1];
+
+		if ((tmp=strchr(optstring,optopt))) {
+			if (*tmp==0) {	/* apparently, we looked for \0, i.e. end of argument */
+				++optind;
+				goto again;
+			}
+
+			if (tmp[1]==':') {	/* argument expected */
+				if (tmp[2]==':' || argv[optind][lastofs+2]) {	/* "-foo", return "oo" as optarg */
+					if (!*(optarg=argv[optind]+lastofs+2)) optarg=0;
+					goto found;
+				}
+
+				optarg=argv[optind+1];
+				if (!optarg) {	/* missing argument */
+					++optind;
+					if (*optstring==':') return ':';
+					getopterror(1);
+					return ':';
+				}
+				++optind;
+			}
+			else {
+				++lastofs;
+				return optopt;
+			}
+found:
+			++optind;
+			return optopt;
+		} 
+		else {	/* not found */
+			getopterror(0);
+			++optind;
+			return '?';
+		}
+		
+		fprintf(stderr,"Invalid option %s\n",arg);
+		++optind;
+		return '?';
+	}// end of long option
+}

codec/compat/getopt.h

@@ -3,6 +3,18 @@
 #ifndef _GETOPT_H_
 #define _GETOPT_H_
 
+typedef struct option
+{
+	char *name;
+	int has_arg;
+	int *flag;
+	int val;
+}option_t;
+
+#define	NO_ARG	0
+#define REQ_ARG	1
+#define OPT_ARG	2
+
 extern int opterr;
 extern int optind;
 extern int optopt;
@@ -10,5 +22,8 @@ extern int optreset;
 extern char *optarg;
 
 extern int getopt(int nargc, char *const *nargv, const char *ostr);
+extern int getopt_long(int argc, char * const argv[], const char *optstring,
+			const struct option *longopts, int *longindex,int totlen);
+
 
 #endif				/* _GETOPT_H_ */

codec/image_to_j2k.c

@@ -35,6 +35,7 @@
 #include "openjpeg.h"
 #include "compat/getopt.h"
 #include "convert.h"
+#include "dirent.h"
 
 #ifndef WIN32
 #define stricmp strcasecmp
@@ -46,14 +47,33 @@
 #define J2K_CFMT 0
 #define JP2_CFMT 1
 #define JPT_CFMT 2
-#define MJ2_CFMT 3
+
-#define PXM_DFMT 0
+#define PXM_DFMT 10
-#define PGX_DFMT 1
+#define PGX_DFMT 11
-#define BMP_DFMT 2
+#define BMP_DFMT 12
-#define YUV_DFMT 3
+#define YUV_DFMT 13
 
 /* ----------------------------------------------------------------------- */
 
+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;
+
+}img_fol_t;
+
 void encode_help_display() {
 	fprintf(stdout,"HELP\n----\n\n");
 	fprintf(stdout,"- the -h option displays this help information on screen\n\n");
@@ -105,6 +125,13 @@ void encode_help_display() {
 	fprintf(stdout,"\n");
 	fprintf(stdout,"Required Parameters (except with -h):\n");
 	fprintf(stdout,"\n");
+	fprintf(stdout,"-ImgDir      : Image file Directory path (example ../Images) \n");
+	fprintf(stdout,"\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 format\n");
+	fprintf(stdout,"\n");
 	fprintf(stdout,"-i           : source file  (-i source.pnm also *.pgm, *.ppm) \n");
 	fprintf(stdout,"\n");
 	fprintf(stdout,"-o           : destination file (-o dest.j2k or .jp2) \n");
@@ -279,6 +306,53 @@ OPJ_PROG_ORDER give_progression(char progression[4]) {
 	return PROG_UNKNOWN;
 }
 
+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;
+	}
+
+	num_images=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;
+
+	/*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;
+
+		strcpy(dirptr->filename[i],content->d_name);
+		i++;
+	}
+	return 0;	
+}
+
 int get_file_format(char *filename) {
 	unsigned int i;
 	static const char *extension[] = {
@@ -297,10 +371,47 @@ int get_file_format(char *filename) {
 	return -1;
 }
 
-/* -------------------------------------------------------------------------*/
+char * get_file_name(char *name){
+	char *fname;
+	fname= (char*)malloc(OPJ_PATH_LEN*sizeof(char));
+	fname= strtok(name,".");
+	return fname;
+}
 
-int parse_cmdline_encoder(int argc, char **argv, opj_cparameters_t *parameters) {
+get_next_file(int imageno,dircnt_t *dirptr,img_fol_t *img_fol, opj_cparameters_t *parameters){
-	int i, j;
+	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,"Image Number %d \"%s\"\n",imageno,image_filename);
+	parameters->decod_format = get_file_format(image_filename);
+	sprintf(infilename,"%s/%s",img_fol->imgdirpath,image_filename);
+	strncpy(parameters->infile, infilename, sizeof(infilename));
+
+	//Set output file
+	strcpy(temp_ofname,get_file_name(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));
+	}
+
+}
+
+
+
+
+/* ------------------------------------------------------------------------------------ */
+
+int parse_cmdline_encoder(int argc, char **argv, opj_cparameters_t *parameters,img_fol_t *img_fol) {
+	int i, j,totlen;
+	option_t long_option[]={
+		{"DCI",NO_ARG, NULL ,'z'},
+		{"ImgDir",REQ_ARG, NULL ,'y'},
+		{"fps",REQ_ARG, NULL ,'w'},
+		{"TP",REQ_ARG, NULL ,'v'},
+		{"SOP",NO_ARG, NULL ,'S'},
+		{"EPH",NO_ARG, NULL ,'E'},
+		{"OutFor",REQ_ARG, NULL ,'O'},
+	};
 
 	/* parse the command line */
 /* UniPG>> */
@@ -310,8 +421,11 @@ int parse_cmdline_encoder(int argc, char **argv, opj_cparameters_t *parameters)
 #endif /* USE_JPWL */
 		;
 
+	totlen=sizeof(long_option);
+	img_fol->set_out_format=0;
+
 	while (1) {
-		int c = getopt(argc, argv, optlist);
+    int c = getopt_long(argc, argv, optlist,long_option,NULL,totlen);
 /* <<UniPG */
 		if (c == -1)
 			break;
@@ -355,6 +469,30 @@ int parse_cmdline_encoder(int argc, char **argv, opj_cparameters_t *parameters)
 			break;
 
 				/* ----------------------------------------------------- */
+			case 'O':			/* output file */
+				{
+					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 J2K_CFMT:
+				img_fol->out_format = "j2k";
+				break;
+			case JP2_CFMT:
+				img_fol->out_format = "jp2";
+				break;
+			default:
+				fprintf(stderr, "Unknown output format image %s [only j2k, jp2]!! \n");
+				return 1;
+					}
+				}
+				break;
+
+
+				/* ----------------------------------------------------- */
+
 
 			case 'r':			/* rates rates/distorsion */
 			{
@@ -657,6 +795,18 @@ int parse_cmdline_encoder(int argc, char **argv, opj_cparameters_t *parameters)
 			}
 			break;
 
+				/* ------------------------------------------------------ */
+
+			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
 				/* ------------------------------------------------------ */
@@ -990,11 +1140,29 @@ int parse_cmdline_encoder(int argc, char **argv, opj_cparameters_t *parameters)
 	}
 
 	/* 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!!\n");
+			return 1;
+		}
+		if(!((parameters->outfile[0] == 0))){
+			fprintf(stderr, "Error: options -ImgDir and -o cannot be used together !!\n");
+			fprintf(stderr, "Specify OutputFormat using -OutFor<FORMAT> !!\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 image-file -o j2k/jp2-file (+ options)\n");
 			return 1;
 		}
+	}
 
 	if ((parameters->cp_disto_alloc || parameters->cp_fixed_alloc || parameters->cp_fixed_quality)
 		&& (!(parameters->cp_disto_alloc ^ parameters->cp_fixed_alloc ^ parameters->cp_fixed_quality))) {
@@ -1056,8 +1224,13 @@ void info_callback(const char *msg, void *client_data) {
 int main(int argc, char **argv) {
 	bool bSuccess;
 	opj_cparameters_t parameters;	/* compression parameters */
+	img_fol_t img_fol;
 	opj_event_mgr_t event_mgr;		/* event manager */
 	opj_image_t *image = NULL;
+	int i,num_images;
+	int imageno;
+	char process_file = 1;
+	dircnt_t *dirptr;
 
 	/*
 	configure the event callbacks (not required)
@@ -1072,10 +1245,11 @@ int main(int argc, char **argv) {
 	opj_set_default_encoder_parameters(&parameters);
 
 	/* parse input and get user encoding parameters */
-	if(parse_cmdline_encoder(argc, argv, &parameters) == 1) {
+	if(parse_cmdline_encoder(argc, argv, &parameters,&img_fol) == 1) {
 		return 0;
 	}
 
+	/* Create comment for codestream */
 	if(parameters.cp_comment == NULL) {
     const char comment[] = "Created by OpenJPEG version ";
 		const size_t clen = strlen(comment);
@@ -1092,6 +1266,60 @@ int main(int argc, char **argv) {
 
 	}
 
+	/* Read directory if necessary */
+
+	if(img_fol.set_imgdir==1){
+		num_images=get_num_images(img_fol.imgdirpath);
+
+		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;
+	}
+	/*Encoding image one by one*/
+	for(imageno=0;imageno<num_images;imageno++)
+	{
+
+		image = NULL;
+		fprintf(stderr,"\n");
+		process_file = 1;
+
+		if(img_fol.set_imgdir==1){
+			get_next_file(imageno, dirptr,&img_fol, &parameters );
+
+		}
+		switch(parameters.decod_format) {
+			case PGX_DFMT:
+				break;
+			case PXM_DFMT:
+				break;
+			case BMP_DFMT:
+				break;
+
+			default:
+				fprintf(stderr,"skipping file...\n");
+				process_file = 0;				
+		}
+
+		if(process_file == 1){
+
 			/* decode the source image */
 			/* ----------------------- */
 
@@ -1160,6 +1388,7 @@ int main(int argc, char **argv) {
 				fwrite(cio->buffer, 1, codestream_length, f);
 				fclose(f);
 
+				fprintf(stderr,"Generated outfile %s\n",parameters.outfile);
 				/* close and free the byte stream */
 				opj_cio_close(cio);
 
@@ -1210,13 +1439,15 @@ int main(int argc, char **argv) {
 
 			}
 	
+			/* free image data */
+			opj_image_destroy(image);
+		}
+	}
+
 	/* free user parameters structure */
   if(parameters.cp_comment) free(parameters.cp_comment);
 	if(parameters.cp_matrice) free(parameters.cp_matrice);
 
-	/* free image data */
-	opj_image_destroy(image);
-
 	return 0;
 }
 

codec/j2k_to_image.c

@@ -35,6 +35,7 @@
 #include "openjpeg.h"
 #include "compat/getopt.h"
 #include "convert.h"
+#include "dirent.h"
 
 #ifndef WIN32
 #define stricmp strcasecmp
@@ -46,14 +47,34 @@
 #define J2K_CFMT 0
 #define JP2_CFMT 1
 #define JPT_CFMT 2
-#define MJ2_CFMT 3
+
-#define PXM_DFMT 0
+#define PXM_DFMT 10
-#define PGX_DFMT 1
+#define PGX_DFMT 11
-#define BMP_DFMT 2
+#define BMP_DFMT 12
-#define YUV_DFMT 3
+#define YUV_DFMT 13
 
 /* ----------------------------------------------------------------------- */
 
+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;
+
+}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");
@@ -66,8 +87,15 @@ void decode_help_display() {
 		"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 format\n");
 	fprintf(stdout,"  -i <compressed file>\n");
-	fprintf(stdout,"    REQUIRED\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");
@@ -103,6 +131,52 @@ void decode_help_display() {
 
 /* -------------------------------------------------------------------------- */
 
+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;
+
+	/*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;
+
+		strcpy(dirptr->filename[i],content->d_name);
+		i++;
+	}
+	return 0;	
+}
+
 int get_file_format(char *filename) {
 	unsigned int i;
 	static const char *extension[] = {"pgx", "pnm", "pgm", "ppm", "bmp", "j2k", "jp2", "jpt" };
@@ -119,10 +193,33 @@ int get_file_format(char *filename) {
 	return -1;
 }
 
+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,"Imageno=%d %s\n",imageno,image_filename);
+	parameters->decod_format = get_file_format(image_filename);
+	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));
+	}
+}
+
+
 /* -------------------------------------------------------------------------- */
 
-int parse_cmdline_decoder(int argc, char **argv, opj_dparameters_t *parameters) {
+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'},
+	};
 
 /* UniPG>> */
 	const char optlist[] = "i:o:r:l:h"
@@ -132,9 +229,10 @@ int parse_cmdline_decoder(int argc, char **argv, opj_dparameters_t *parameters)
 #endif /* USE_JPWL */
 					;
 /* <<UniPG */
-
+	totlen=sizeof(long_option);
+	img_fol->set_out_format = 0;
 	while (1) {
-		int c = getopt(argc, argv, optlist); /* >>JPWL<< */
+		int c = getopt_long(argc, argv,optlist,long_option,NULL,totlen);
 		if (c == -1)
 			break;
 		switch (c) {
@@ -178,6 +276,33 @@ int parse_cmdline_decoder(int argc, char **argv, opj_dparameters_t *parameters)
 			
 				/* ----------------------------------------------------- */
 
+			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;
+					default:
+						fprintf(stderr, "Unknown output format image %s [only *.pnm, *.pgm, *.ppm, *.pgx or *.bmp]!! \n");
+						return 1;
+						break;
+				}
+			}
+			break;
+
+				/* ----------------------------------------------------- */
+
 
 			case 'r':		/* reduce option */
 			{
@@ -200,9 +325,18 @@ int parse_cmdline_decoder(int argc, char **argv, opj_dparameters_t *parameters)
 				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 */
 			{
@@ -281,11 +415,29 @@ int parse_cmdline_decoder(int argc, char **argv, opj_dparameters_t *parameters)
 	}
 
 	/* check for possible errors */
-
+	if(img_fol->set_imgdir==1){
-	if((parameters->infile[0] == 0) || (parameters->outfile[0] == 0)) {
+		if(!(parameters->infile[0]==0)){
-		fprintf(stderr,"ERROR -> At least one required argument is missing\nCheck j2k_to_image -h for usage information\n");
+			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!!\n");
+			return 1;
+		}
+		if(!((parameters->outfile[0] == 0))){
+			fprintf(stderr, "Error: options -ImgDir and -o cannot be used together !!\n");
+			fprintf(stderr, "Specify OutputFormat using -OutFor<FORMAT> !!\n");
+			return 1;
+		}
+	}else{
+		if((parameters->infile[0] == 0) || (parameters->outfile[0] == 0)) {
+			fprintf(stderr, "Error: One of option; -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 image-file -o j2k/jp2-file (+ options)\n");
+			return 1;
+		}
+	}
 
 	return 0;
 }
@@ -318,12 +470,16 @@ void info_callback(const char *msg, void *client_data) {
 
 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;
+	char process_file = 1;
 	opj_dinfo_t* dinfo = NULL;	/* handle to a decompressor */
 	opj_cio_t *cio = NULL;
 
@@ -336,11 +492,53 @@ int main(int argc, char **argv) {
 	/* set decoding parameters to default values */
 	opj_set_default_decoder_parameters(&parameters);
 
-	/* parse input and get user decoding parameters */
+
-	if(parse_cmdline_decoder(argc, argv, &parameters) == 1) {
+	/* parse input and get user encoding parameters */
+	if(parse_cmdline_decoder(argc, argv, &parameters,&img_fol) == 1) {
 		return 0;
 	}
 
+	if(img_fol.set_imgdir==1){	
+		num_images=get_num_images(img_fol.imgdirpath);
+
+		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;
+	}
+
+	/*Encoding image one by one*/
+	for(imageno = 0; imageno < num_images ; imageno++)
+	{
+
+		image = NULL;
+		fprintf(stderr,"\n");
+		process_file = 1;
+
+		
+		if(img_fol.set_imgdir==1){
+			get_next_file(imageno, dirptr,&img_fol, &parameters );
+
+		}
+
+
 		/* read the input file and put it in memory */
 		/* ---------------------------------------- */
 		fsrc = fopen(parameters.infile, "rb");
@@ -355,6 +553,8 @@ int main(int argc, char **argv) {
 		fread(src, 1, file_length, fsrc);
 		fclose(fsrc);
 
+
+
 		/* decode the code-stream */
 		/* ---------------------- */
 
@@ -451,8 +651,8 @@ int main(int argc, char **argv) {
 		break;
 
 		default:
-			fprintf(stderr, "ERROR -> j2k_to_image : Unknown input image format\n");
+			fprintf(stderr, "False input image format skipping file..\n");
-			return 1;
+			process_file = 0;
 	}
 
 		/* free the memory containing the code-stream */
@@ -461,7 +661,7 @@ int main(int argc, char **argv) {
 
 		/* create output image */
 		/* ------------------- */
-
+		if(process_file == 1){
 			switch (parameters.cod_format) {
 		case PXM_DFMT:			/* PNM PGM PPM */
 			imagetopnm(image, parameters.outfile);
@@ -480,10 +680,11 @@ int main(int argc, char **argv) {
 			if(dinfo) {
 				opj_destroy_decompress(dinfo);
 			}
-
 			/* free image data structure */
 			opj_image_destroy(image);
-
+		}
+	}
 	return 0;
 }
+//end main