392 lines
12 KiB
C
392 lines
12 KiB
C
/*
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* Copyright (c) 2001-2003, David Janssens
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* Copyright (c) 2002-2003, Yannick Verschueren
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* Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe
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* Copyright (c) 2005, Hervé Drolon, FreeImage Team
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* Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include "openjpeg.h"
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#include "compat/getopt.h"
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#include "convert.h"
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#ifndef WIN32
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#define stricmp strcasecmp
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#define strnicmp strncasecmp
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#endif
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/* ----------------------------------------------------------------------- */
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#define J2K_CFMT 0
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#define JP2_CFMT 1
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#define JPT_CFMT 2
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#define MJ2_CFMT 3
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#define PXM_DFMT 0
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#define PGX_DFMT 1
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#define BMP_DFMT 2
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#define YUV_DFMT 3
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/* ----------------------------------------------------------------------- */
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void decode_help_display() {
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fprintf(stdout,"HELP\n----\n\n");
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fprintf(stdout,"- the -h option displays this help information on screen\n\n");
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fprintf(stdout,"List of parameters for the JPEG 2000 encoder:\n");
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fprintf(stdout,"\n");
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fprintf(stdout," -i <compressed file>\n");
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fprintf(stdout," REQUIRED\n");
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fprintf(stdout," Currently accepts J2K-files, JP2-files and JPT-files. The file type\n");
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fprintf(stdout," is identified based on its suffix.\n");
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fprintf(stdout," -o <decompressed file>\n");
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fprintf(stdout," REQUIRED\n");
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fprintf(stdout," Currently accepts PGM-files, PPM-files, PNM-files, PGX-files and\n");
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fprintf(stdout," BMP-files. Binary data is written to the file (not ascii). If a PGX\n");
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fprintf(stdout," filename is given, there will be as many output files as there are\n");
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fprintf(stdout," components: an indice starting from 0 will then be appended to the\n");
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fprintf(stdout," output filename, just before the \"pgx\" extension. If a PGM filename\n");
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fprintf(stdout," is given and there are more than one component, only the first component\n");
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fprintf(stdout," will be written to the file.\n");
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fprintf(stdout," -r <reduce factor>\n");
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fprintf(stdout," Set the number of highest resolution levels to be discarded. The\n");
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fprintf(stdout," image resolution is effectively divided by 2 to the power of the\n");
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fprintf(stdout," number of discarded levels. The reduce factor is limited by the\n");
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fprintf(stdout," smallest total number of decomposition levels among tiles.\n");
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fprintf(stdout," -l <number of quality layers to decode>\n");
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fprintf(stdout," Set the maximum number of quality layers to decode. If there are\n");
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fprintf(stdout," less quality layers than the specified number, all the quality layers\n");
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fprintf(stdout," are decoded.\n");
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fprintf(stdout,"\n");
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}
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/* -------------------------------------------------------------------------- */
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int get_file_format(char *filename) {
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unsigned int i;
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static const char *extension[] = {"pgx", "pnm", "pgm", "ppm", "bmp", "j2k", "jp2", "jpt" };
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static const int format[] = { PGX_DFMT, PXM_DFMT, PXM_DFMT, PXM_DFMT, BMP_DFMT, J2K_CFMT, JP2_CFMT, JPT_CFMT };
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char * ext = strrchr(filename, '.') + 1;
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if(ext) {
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for(i = 0; i < sizeof(format)/sizeof(*format); i++) {
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if(strnicmp(ext, extension[i], 3) == 0) {
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return format[i];
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}
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}
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}
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return -1;
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}
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/* -------------------------------------------------------------------------- */
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int parse_cmdline_decoder(int argc, char **argv, opj_dparameters_t *parameters) {
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/* parse the command line */
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while (1) {
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int c = getopt(argc, argv, "i:o:r:l:h");
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if (c == -1)
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break;
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switch (c) {
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case 'i': /* input file */
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{
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char *infile = optarg;
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parameters->decod_format = get_file_format(infile);
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switch(parameters->decod_format) {
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case J2K_CFMT:
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case JP2_CFMT:
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case JPT_CFMT:
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break;
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default:
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fprintf(stderr,
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"!! Unrecognized format for infile : %s [accept only *.j2k, *.jp2, *.jpc or *.jpt] !!\n\n",
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infile);
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return 1;
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}
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strncpy(parameters->infile, infile, MAX_PATH);
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}
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break;
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/* ----------------------------------------------------- */
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case 'o': /* output file */
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{
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char *outfile = optarg;
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parameters->cod_format = get_file_format(outfile);
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switch(parameters->cod_format) {
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case PGX_DFMT:
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case PXM_DFMT:
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case BMP_DFMT:
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break;
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default:
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fprintf(stderr, "Unknown output format image %s [only *.pnm, *.pgm, *.ppm, *.pgx or *.bmp]!! \n", outfile);
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return 1;
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}
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strncpy(parameters->outfile, outfile, MAX_PATH);
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}
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break;
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/* ----------------------------------------------------- */
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case 'r': /* reduce option */
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{
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sscanf(optarg, "%d", ¶meters->cp_reduce);
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}
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break;
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/* ----------------------------------------------------- */
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case 'l': /* layering option */
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{
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sscanf(optarg, "%d", ¶meters->cp_layer);
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}
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break;
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/* ----------------------------------------------------- */
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case 'h': /* display an help description */
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decode_help_display();
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return 1;
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/* ----------------------------------------------------- */
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default:
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fprintf(stderr,"WARNING -> this option is not valid \"-%c %s\"\n",c, optarg);
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break;
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}
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}
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/* check for possible errors */
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if((parameters->infile[0] == 0) || (parameters->outfile[0] == 0)) {
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fprintf(stderr,"ERROR -> At least one required argument is missing\nCheck j2k_to_image -h for usage information\n");
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return 1;
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}
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return 0;
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}
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/* -------------------------------------------------------------------------- */
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/**
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sample error callback expecting a FILE* client object
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*/
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void error_callback(const char *msg, void *client_data) {
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FILE *stream = (FILE*)client_data;
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fprintf(stream, "[ERROR] %s", msg);
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}
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/**
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sample warning callback expecting a FILE* client object
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*/
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void warning_callback(const char *msg, void *client_data) {
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FILE *stream = (FILE*)client_data;
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fprintf(stream, "[WARNING] %s", msg);
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}
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/**
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sample debug callback expecting no client object
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*/
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void info_callback(const char *msg, void *client_data) {
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(void)client_data;
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fprintf(stdout, "[INFO] %s", msg);
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}
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/* -------------------------------------------------------------------------- */
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int main(int argc, char **argv) {
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opj_dparameters_t parameters; /* decompression parameters */
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opj_event_mgr_t event_mgr; /* event manager */
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opj_image_t *image = NULL;
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FILE *fsrc = NULL;
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unsigned char *src = NULL;
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int file_length;
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opj_dinfo_t* dinfo = NULL; /* handle to a decompressor */
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opj_cio_t *cio = NULL;
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/* configure the event callbacks (not required) */
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memset(&event_mgr, 0, sizeof(opj_event_mgr_t));
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event_mgr.error_handler = error_callback;
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event_mgr.warning_handler = warning_callback;
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event_mgr.info_handler = info_callback;
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/* set decoding parameters to default values */
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opj_set_default_decoder_parameters(¶meters);
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/* parse input and get user decoding parameters */
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if(parse_cmdline_decoder(argc, argv, ¶meters) == 1) {
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return 0;
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}
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/* read the input file and put it in memory */
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/* ---------------------------------------- */
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fsrc = fopen(parameters.infile, "rb");
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if (!fsrc) {
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fprintf(stderr, "ERROR -> failed to open %s for reading\n", parameters.infile);
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return 1;
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}
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fseek(fsrc, 0, SEEK_END);
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file_length = ftell(fsrc);
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fseek(fsrc, 0, SEEK_SET);
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src = (unsigned char *) malloc(file_length);
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fread(src, 1, file_length, fsrc);
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fclose(fsrc);
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/* decode the code-stream */
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/* ---------------------- */
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switch(parameters.decod_format) {
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case J2K_CFMT:
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{
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/* JPEG-2000 codestream */
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/* get a decoder handle */
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dinfo = opj_create_decompress(CODEC_J2K);
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/* catch events using our callbacks and give a local context */
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opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr);
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/* setup the decoder decoding parameters using user parameters */
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opj_setup_decoder(dinfo, ¶meters);
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/* open a byte stream */
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cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
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/* decode the stream and fill the image structure */
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image = opj_decode(dinfo, cio);
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if(!image) {
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fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
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opj_destroy_decompress(dinfo);
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opj_cio_close(cio);
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return 1;
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}
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/* close the byte stream */
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opj_cio_close(cio);
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}
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break;
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case JP2_CFMT:
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{
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/* JPEG 2000 compressed image data */
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/* get a decoder handle */
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dinfo = opj_create_decompress(CODEC_JP2);
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/* catch events using our callbacks and give a local context */
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opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr);
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/* setup the decoder decoding parameters using the current image and user parameters */
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opj_setup_decoder(dinfo, ¶meters);
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/* open a byte stream */
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cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
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/* decode the stream and fill the image structure */
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image = opj_decode(dinfo, cio);
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if(!image) {
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fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
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opj_destroy_decompress(dinfo);
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opj_cio_close(cio);
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return 1;
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}
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/* close the byte stream */
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opj_cio_close(cio);
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}
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break;
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case JPT_CFMT:
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{
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/* JPEG 2000, JPIP */
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/* get a decoder handle */
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dinfo = opj_create_decompress(CODEC_JPT);
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/* catch events using our callbacks and give a local context */
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opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr);
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/* setup the decoder decoding parameters using user parameters */
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opj_setup_decoder(dinfo, ¶meters);
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/* open a byte stream */
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cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
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/* decode the stream and fill the image structure */
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image = opj_decode(dinfo, cio);
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if(!image) {
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fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
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opj_destroy_decompress(dinfo);
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opj_cio_close(cio);
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return 1;
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}
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/* close the byte stream */
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opj_cio_close(cio);
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}
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break;
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default:
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fprintf(stderr, "ERROR -> j2k_to_image : Unknown input image format\n");
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return 1;
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}
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/* free the memory containing the code-stream */
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free(src);
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src = NULL;
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/* create output image */
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/* ------------------- */
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switch (parameters.cod_format) {
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case PXM_DFMT: /* PNM PGM PPM */
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imagetopnm(image, parameters.outfile);
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break;
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case PGX_DFMT: /* PGX */
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imagetopgx(image, parameters.outfile);
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break;
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case BMP_DFMT: /* BMP */
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imagetobmp(image, parameters.outfile);
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break;
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}
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/* free remaining structures */
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if(dinfo) {
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opj_destroy_decompress(dinfo);
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}
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/* free image data structure */
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opj_image_destroy(image);
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return 0;
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}
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