| /* |
| * Copyright (c) 2011-2012, Centre National d'Etudes Spatiales (CNES), France |
| * Copyright (c) 2012, CS Systemes d'Information, France |
| * 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 "opj_config.h" |
| |
| #include <stdio.h> |
| #include <string.h> |
| #include <stdlib.h> |
| #include <math.h> |
| |
| #ifdef _WIN32 |
| #include <windows.h> |
| #else |
| #include <strings.h> |
| #define _stricmp strcasecmp |
| #define _strnicmp strncasecmp |
| #endif /* _WIN32 */ |
| |
| #include "openjpeg.h" |
| #include "format_defs.h" |
| |
| /* -------------------------------------------------------------------------- */ |
| static int get_file_format(const char *filename) |
| { |
| unsigned int i; |
| static const char *extension[] = {"pgx", "pnm", "pgm", "ppm", "bmp","tif", "raw", "tga", "png", "j2k", "jp2", "jpt", "j2c", "jpc" }; |
| static const int format[] = { PGX_DFMT, PXM_DFMT, PXM_DFMT, PXM_DFMT, BMP_DFMT, TIF_DFMT, RAW_DFMT, TGA_DFMT, PNG_DFMT, J2K_CFMT, JP2_CFMT, JPT_CFMT, J2K_CFMT, J2K_CFMT }; |
| 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]; |
| } |
| } |
| } |
| |
| return -1; |
| } |
| |
| /* -------------------------------------------------------------------------- */ |
| |
| /** |
| sample error callback expecting a FILE* client object |
| */ |
| static void error_callback(const char *msg, void *client_data) |
| { |
| (void)client_data; |
| fprintf(stdout, "[ERROR] %s", msg); |
| } |
| /** |
| sample warning callback expecting a FILE* client object |
| */ |
| static void warning_callback(const char *msg, void *client_data) |
| { |
| (void)client_data; |
| fprintf(stdout, "[WARNING] %s", msg); |
| } |
| /** |
| sample debug callback expecting no client object |
| */ |
| static void info_callback(const char *msg, void *client_data) |
| { |
| (void)client_data; |
| fprintf(stdout, "[INFO] %s", msg); |
| } |
| |
| |
| /* -------------------------------------------------------------------------- */ |
| #define JP2_RFC3745_MAGIC "\x00\x00\x00\x0c\x6a\x50\x20\x20\x0d\x0a\x87\x0a" |
| #define JP2_MAGIC "\x0d\x0a\x87\x0a" |
| /* position 45: "\xff\x52" */ |
| #define J2K_CODESTREAM_MAGIC "\xff\x4f\xff\x51" |
| |
| static int infile_format(const char *fname) |
| { |
| FILE *reader; |
| const char *s, *magic_s; |
| int ext_format, magic_format; |
| unsigned char buf[12]; |
| OPJ_SIZE_T l_nb_read; |
| |
| reader = fopen(fname, "rb"); |
| |
| if (reader == NULL) |
| return -1; |
| |
| memset(buf, 0, 12); |
| l_nb_read = fread(buf, 1, 12, reader); |
| fclose(reader); |
| if (l_nb_read != 12) |
| return -1; |
| |
| |
| |
| ext_format = get_file_format(fname); |
| |
| if (ext_format == JPT_CFMT) |
| return JPT_CFMT; |
| |
| if (memcmp(buf, JP2_RFC3745_MAGIC, 12) == 0 || memcmp(buf, JP2_MAGIC, 4) == 0) { |
| magic_format = JP2_CFMT; |
| magic_s = ".jp2"; |
| } else if (memcmp(buf, J2K_CODESTREAM_MAGIC, 4) == 0) { |
| magic_format = J2K_CFMT; |
| magic_s = ".j2k or .jpc or .j2c"; |
| } else |
| return -1; |
| |
| if (magic_format == ext_format) |
| return ext_format; |
| |
| s = fname + strlen(fname) - 4; |
| |
| fputs("\n===========================================\n", stderr); |
| fprintf(stderr, "The extension of this file is incorrect.\n" |
| "FOUND %s. SHOULD BE %s\n", s, magic_s); |
| fputs("===========================================\n", stderr); |
| |
| return magic_format; |
| } |
| |
| /* -------------------------------------------------------------------------- */ |
| /** |
| * J2K_RANDOM_TILE_ACCESS MAIN |
| */ |
| /* -------------------------------------------------------------------------- */ |
| int main(int argc, char **argv) |
| { |
| OPJ_UINT32 index; |
| opj_dparameters_t parameters; /* decompression parameters */ |
| opj_image_t* image = NULL; |
| opj_stream_t *l_stream = NULL; /* Stream */ |
| opj_codec_t* l_codec = NULL; /* Handle to a decompressor */ |
| opj_codestream_info_v2_t* cstr_info = NULL; |
| |
| /* Index of corner tiles */ |
| OPJ_UINT32 tile_ul = 0; |
| OPJ_UINT32 tile_ur = 0; |
| OPJ_UINT32 tile_lr = 0; |
| OPJ_UINT32 tile_ll = 0; |
| |
| if (argc != 2) { |
| fprintf(stderr, "Usage: %s <input_file>\n", argv[0]); |
| return EXIT_FAILURE; |
| } |
| |
| /* Set decoding parameters to default values */ |
| opj_set_default_decoder_parameters(¶meters); |
| |
| strncpy(parameters.infile, argv[1], OPJ_PATH_LEN - 1); |
| |
| |
| /* decode the JPEG2000 stream */ |
| /* -------------------------- */ |
| parameters.decod_format = infile_format(parameters.infile); |
| |
| switch(parameters.decod_format) { |
| case J2K_CFMT: { /* JPEG-2000 codestream */ |
| /* Get a decoder handle */ |
| l_codec = opj_create_decompress(OPJ_CODEC_J2K); |
| break; |
| } |
| case JP2_CFMT: { /* JPEG 2000 compressed image data */ |
| /* Get a decoder handle */ |
| l_codec = opj_create_decompress(OPJ_CODEC_JP2); |
| break; |
| } |
| case JPT_CFMT: { /* JPEG 2000, JPIP */ |
| /* Get a decoder handle */ |
| l_codec = opj_create_decompress(OPJ_CODEC_JPT); |
| break; |
| } |
| default: |
| fprintf(stderr, |
| "Unrecognized format for input %s [accept only *.j2k, *.jp2, *.jpc or *.jpt]\n\n", |
| parameters.infile); |
| return EXIT_FAILURE; |
| } |
| |
| /* catch events using our callbacks and give a local context */ |
| opj_set_info_handler(l_codec, info_callback,00); |
| opj_set_warning_handler(l_codec, warning_callback,00); |
| opj_set_error_handler(l_codec, error_callback,00); |
| |
| l_stream = opj_stream_create_default_file_stream(parameters.infile,1); |
| if (!l_stream) { |
| fprintf(stderr, "ERROR -> failed to create the stream from the file %s\n", parameters.infile); |
| return EXIT_FAILURE; |
| } |
| |
| /* Setup the decoder decoding parameters using user parameters */ |
| if ( !opj_setup_decoder(l_codec, ¶meters) ) { |
| fprintf(stderr, "ERROR -> j2k_dump: failed to setup the decoder\n"); |
| opj_stream_destroy(l_stream); |
| opj_destroy_codec(l_codec); |
| return EXIT_FAILURE; |
| } |
| |
| /* Read the main header of the codestream and if necessary the JP2 boxes*/ |
| if(! opj_read_header(l_stream, l_codec, &image)) { |
| fprintf(stderr, "ERROR -> j2k_to_image: failed to read the header\n"); |
| opj_stream_destroy(l_stream); |
| opj_destroy_codec(l_codec); |
| opj_image_destroy(image); |
| return EXIT_FAILURE; |
| } |
| |
| /* Extract some info from the code stream */ |
| cstr_info = opj_get_cstr_info(l_codec); |
| |
| fprintf(stdout, "The file contains %dx%d tiles\n", cstr_info->tw, cstr_info->th); |
| |
| tile_ul = 0; |
| tile_ur = cstr_info->tw - 1; |
| tile_lr = cstr_info->tw * cstr_info->th - 1; |
| tile_ll = tile_lr - cstr_info->tw; |
| |
| #define TEST_TILE( tile_index ) \ |
| fprintf(stdout, "Decoding tile %d ...\n", tile_index); \ |
| if(!opj_get_decoded_tile(l_codec, l_stream, image, tile_index )){ \ |
| fprintf(stderr, "ERROR -> j2k_to_image: failed to decode tile %d\n", tile_index); \ |
| opj_stream_destroy(l_stream); \ |
| opj_destroy_cstr_info(&cstr_info); \ |
| opj_destroy_codec(l_codec); \ |
| opj_image_destroy(image); \ |
| return EXIT_FAILURE; \ |
| } \ |
| for(index = 0; index < image->numcomps; ++index) { \ |
| if( image->comps[index].data == NULL ){ \ |
| fprintf(stderr, "ERROR -> j2k_to_image: failed to decode tile %d\n", tile_index); \ |
| opj_stream_destroy(l_stream); \ |
| opj_destroy_cstr_info(&cstr_info); \ |
| opj_destroy_codec(l_codec); \ |
| opj_image_destroy(image); \ |
| return EXIT_FAILURE; \ |
| } \ |
| } \ |
| fprintf(stdout, "Tile %d is decoded successfully\n", tile_index); |
| |
| TEST_TILE(tile_ul) |
| TEST_TILE(tile_lr) |
| TEST_TILE(tile_ul) |
| TEST_TILE(tile_ll) |
| TEST_TILE(tile_ur) |
| TEST_TILE(tile_lr) |
| |
| /* Close the byte stream */ |
| opj_stream_destroy(l_stream); |
| |
| /* Destroy code stream info */ |
| opj_destroy_cstr_info(&cstr_info); |
| |
| /* Free remaining structures */ |
| opj_destroy_codec(l_codec); |
| |
| /* Free image data structure */ |
| opj_image_destroy(image); |
| |
| return EXIT_SUCCESS; |
| } |
| /*end main*/ |
| |
| |
| |
| |