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;
63 int image_width = 256;
64 int image_height = 256;
66 opj_cparameters_t parameters;
68 int subsampling_dx = parameters.subsampling_dx;
69 int subsampling_dy = parameters.subsampling_dy;
70 const char outputfile[] = "testempty2.j2k";
72 opj_image_cmptparm_t cmptparm;
74 opj_codec_t* l_codec = 00;
77 opj_stream_t *l_stream = 00;
81 opj_set_default_encoder_parameters(¶meters);
82 parameters.cod_format = J2K_CFMT;
87 cmptparm.dx = subsampling_dx;
88 cmptparm.dy = subsampling_dy;
89 cmptparm.w = image_width;
90 cmptparm.h = image_height;
92 image = opj_image_create(numcomps, &cmptparm, color_space);
95 for (i = 0; i < image_width * image_height; i++)
98 for(compno = 0; compno < numcomps; compno++)
100 image->comps[compno].data[i] = 0;
104 /* catch events using our callbacks and give a local context */
\r
105 opj_set_info_handler(l_codec, info_callback,00);
\r
106 opj_set_warning_handler(l_codec, warning_callback,00);
\r
107 opj_set_error_handler(l_codec, error_callback,00);
109 l_codec = opj_create_compress(OPJ_CODEC_J2K);
110 opj_set_info_handler(l_codec, info_callback,00);
111 opj_set_warning_handler(l_codec, warning_callback,00);
112 opj_set_error_handler(l_codec, error_callback,00);
114 opj_setup_encoder(l_codec, ¶meters, image);
116 strcpy(parameters.outfile, outputfile);
117 f = fopen(parameters.outfile, "wb");
120 l_stream = opj_stream_create_default_file_stream(f,OPJ_FALSE);
122 bSuccess = opj_start_compress(l_codec,image,l_stream);
125 bSuccess = opj_encode(l_codec, l_stream);
127 bSuccess = opj_end_compress(l_codec, l_stream);
130 opj_stream_destroy(l_stream);
133 opj_destroy_codec(l_codec);
134 opj_image_destroy(image);
137 /* read back the generated file */
139 FILE *fsrc = fopen(outputfile, "rb");
140 opj_codec_t* d_codec = 00;
141 opj_dparameters_t dparameters;
144 d_codec = opj_create_decompress(OPJ_CODEC_J2K);
145 opj_set_info_handler(d_codec, info_callback,00);
146 opj_set_warning_handler(d_codec, warning_callback,00);
147 opj_set_error_handler(d_codec, error_callback,00);
149 bSuccess = opj_setup_decoder(d_codec, &dparameters);
152 l_stream = opj_stream_create_default_file_stream(fsrc,1);
155 bSuccess = opj_read_header(l_stream, d_codec, &image);
158 bSuccess = opj_decode(l_codec, l_stream, image);
161 bSuccess = opj_end_decompress(l_codec, l_stream);
164 opj_stream_destroy(l_stream);
166 opj_destroy_codec(d_codec);
168 opj_image_destroy(image);