2 * Copyright (c) 2012, Mathieu Malaterre
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
15 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
18 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
19 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
20 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
21 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
22 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
23 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
24 * POSSIBILITY OF SUCH DAMAGE.
31 #include "opj_config.h"
36 void error_callback(const char *msg, void *v);
37 void warning_callback(const char *msg, void *v);
38 void info_callback(const char *msg, void *v);
40 void error_callback(const char *msg, void *v) {
45 void warning_callback(const char *msg, void *v) {
50 void info_callback(const char *msg, void *v) {
56 int main(int argc, char *argv[])
58 const char * v = opj_version();
60 const OPJ_COLOR_SPACE color_space = OPJ_CLRSPC_GRAY;
61 unsigned int numcomps = 1;
63 unsigned int image_width = 256;
64 unsigned int image_height = 256;
66 opj_cparameters_t parameters;
68 unsigned int subsampling_dx;
69 unsigned int subsampling_dy;
70 const char outputfile[] = "testempty2.j2k";
72 opj_image_cmptparm_t cmptparm;
74 opj_codec_t* l_codec = 00;
76 opj_stream_t *l_stream = 00;
80 opj_set_default_encoder_parameters(¶meters);
81 parameters.cod_format = J2K_CFMT;
83 subsampling_dx = (unsigned int)parameters.subsampling_dx;
84 subsampling_dy = (unsigned int)parameters.subsampling_dy;
88 cmptparm.dx = subsampling_dx;
89 cmptparm.dy = subsampling_dy;
90 cmptparm.w = image_width;
91 cmptparm.h = image_height;
92 strncpy(parameters.outfile, outputfile, sizeof(parameters.outfile)-1);
94 image = opj_image_create(numcomps, &cmptparm, color_space);
97 for (i = 0; i < image_width * image_height; i++)
100 for(compno = 0; compno < numcomps; compno++)
102 image->comps[compno].data[i] = 0;
106 /* catch events using our callbacks and give a local context */
107 opj_set_info_handler(l_codec, info_callback,00);
108 opj_set_warning_handler(l_codec, warning_callback,00);
109 opj_set_error_handler(l_codec, error_callback,00);
111 l_codec = opj_create_compress(OPJ_CODEC_J2K);
112 opj_set_info_handler(l_codec, info_callback,00);
113 opj_set_warning_handler(l_codec, warning_callback,00);
114 opj_set_error_handler(l_codec, error_callback,00);
116 opj_setup_encoder(l_codec, ¶meters, image);
118 l_stream = opj_stream_create_default_file_stream(parameters.outfile,OPJ_FALSE);
121 fprintf( stderr, "Something went wrong during creation of stream\n" );
122 opj_destroy_codec(l_codec);
123 opj_image_destroy(image);
124 opj_stream_destroy(l_stream);
128 bSuccess = opj_start_compress(l_codec,image,l_stream);
131 opj_stream_destroy(l_stream);
132 opj_destroy_codec(l_codec);
133 opj_image_destroy(image);
138 bSuccess = opj_encode(l_codec, l_stream);
140 bSuccess = opj_end_compress(l_codec, l_stream);
143 opj_stream_destroy(l_stream);
145 opj_destroy_codec(l_codec);
146 opj_image_destroy(image);
149 /* read back the generated file */
151 opj_codec_t* d_codec = 00;
152 opj_dparameters_t dparameters;
154 d_codec = opj_create_decompress(OPJ_CODEC_J2K);
155 opj_set_info_handler(d_codec, info_callback,00);
156 opj_set_warning_handler(d_codec, warning_callback,00);
157 opj_set_error_handler(d_codec, error_callback,00);
159 bSuccess = opj_setup_decoder(d_codec, &dparameters);
162 l_stream = opj_stream_create_default_file_stream(outputfile,1);
165 bSuccess = opj_read_header(l_stream, d_codec, &image);
168 bSuccess = opj_decode(l_codec, l_stream, image);
171 bSuccess = opj_end_decompress(l_codec, l_stream);
174 opj_stream_destroy(l_stream);
176 opj_destroy_codec(d_codec);
178 opj_image_destroy(image);