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Diffstat (limited to 'codec/j2k_to_image.c')
| -rw-r--r-- | codec/j2k_to_image.c | 391 |
1 files changed, 391 insertions, 0 deletions
diff --git a/codec/j2k_to_image.c b/codec/j2k_to_image.c new file mode 100644 index 00000000..f86fdfb1 --- /dev/null +++ b/codec/j2k_to_image.c @@ -0,0 +1,391 @@ +/* + * Copyright (c) 2001-2003, David Janssens + * Copyright (c) 2002-2003, Yannick Verschueren + * Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe + * Copyright (c) 2005, Hervé Drolon, FreeImage Team + * Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS' + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * 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" + +#ifndef WIN32 +#define stricmp strcasecmp +#define strnicmp strncasecmp +#endif + +/* ----------------------------------------------------------------------- */ + +#define J2K_CFMT 0 +#define JP2_CFMT 1 +#define JPT_CFMT 2 +#define MJ2_CFMT 3 +#define PXM_DFMT 0 +#define PGX_DFMT 1 +#define BMP_DFMT 2 +#define YUV_DFMT 3 + +/* ----------------------------------------------------------------------- */ + +void decode_help_display() { + fprintf(stdout,"HELP\n----\n\n"); + fprintf(stdout,"- the -h option displays this help information on screen\n\n"); + + fprintf(stdout,"List of parameters for the JPEG 2000 encoder:\n"); + fprintf(stdout,"\n"); + fprintf(stdout," -i <compressed file>\n"); + fprintf(stdout," REQUIRED\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-files, PPM-files, PNM-files, PGX-files and\n"); + fprintf(stdout," BMP-files. 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"); + fprintf(stdout,"\n"); +} + +/* -------------------------------------------------------------------------- */ + +int get_file_format(char *filename) { + unsigned int i; + static const char *extension[] = {"pgx", "pnm", "pgm", "ppm", "bmp", "j2k", "jp2", "jpt" }; + static const int format[] = { PGX_DFMT, PXM_DFMT, PXM_DFMT, PXM_DFMT, BMP_DFMT, J2K_CFMT, JP2_CFMT, JPT_CFMT }; + char * ext = strrchr(filename, '.') + 1; + if(ext) { + for(i = 0; i < sizeof(format)/sizeof(*format); i++) { + if(strnicmp(ext, extension[i], 3) == 0) { + return format[i]; + } + } + } + + return -1; +} + +/* -------------------------------------------------------------------------- */ + +int parse_cmdline_decoder(int argc, char **argv, opj_dparameters_t *parameters) { + /* parse the command line */ + + while (1) { + int c = getopt(argc, argv, "i:o:r:l:h"); + 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, MAX_PATH); + } + break; + + /* ----------------------------------------------------- */ + + 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: + break; + default: + fprintf(stderr, "Unknown output format image %s [only *.pnm, *.pgm, *.ppm, *.pgx or *.bmp]!! \n", outfile); + return 1; + } + strncpy(parameters->outfile, outfile, MAX_PATH); + } + break; + + /* ----------------------------------------------------- */ + + + case 'r': /* reduce option */ + { + sscanf(optarg, "%d", ¶meters->cp_reduce); + } + break; + + /* ----------------------------------------------------- */ + + + case 'l': /* layering option */ + { + sscanf(optarg, "%d", ¶meters->cp_layer); + } + break; + + /* ----------------------------------------------------- */ + + case 'h': /* display an help description */ + decode_help_display(); + return 1; + + /* ----------------------------------------------------- */ + + default: + fprintf(stderr,"WARNING -> this option is not valid \"-%c %s\"\n",c, optarg); + break; + } + } + + /* check for possible errors */ + + if((parameters->infile[0] == 0) || (parameters->outfile[0] == 0)) { + fprintf(stderr,"ERROR -> At least one required argument is missing\nCheck j2k_to_image -h for usage information\n"); + 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 */ + opj_event_mgr_t event_mgr; /* event manager */ + opj_image_t *image = NULL; + FILE *fsrc = NULL; + unsigned char *src = NULL; + int file_length; + + 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(¶meters); + + /* parse input and get user decoding parameters */ + if(parse_cmdline_decoder(argc, argv, ¶meters) == 1) { + return 0; + } + + /* 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, ¶meters); + + /* 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); + } + 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, ¶meters); + + /* 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); + + } + 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, ¶meters); + + /* 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); + } + break; + + default: + fprintf(stderr, "ERROR -> j2k_to_image : Unknown input image format\n"); + return 1; + } + + /* free the memory containing the code-stream */ + free(src); + src = NULL; + + /* create output image */ + /* ------------------- */ + + switch (parameters.cod_format) { + case PXM_DFMT: /* PNM PGM PPM */ + imagetopnm(image, parameters.outfile); + break; + + case PGX_DFMT: /* PGX */ + imagetopgx(image, parameters.outfile); + break; + + case BMP_DFMT: /* BMP */ + imagetobmp(image, parameters.outfile); + break; + } + + /* free remaining structures */ + if(dinfo) { + opj_destroy_decompress(dinfo); + } + + /* free image data structure */ + opj_image_destroy(image); + + return 0; +} + |