openjpeg/tests/unit/testempty2.c

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/*
* Copyright (c) 2012, Mathieu Malaterre
* 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 <assert.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include "opj_config.h"
#include "openjpeg.h"
#define J2K_CFMT 0
void error_callback(const char *msg, void *v);
void warning_callback(const char *msg, void *v);
void info_callback(const char *msg, void *v);
void error_callback(const char *msg, void *v) {
(void)msg;
(void)v;
assert(0);
}
void warning_callback(const char *msg, void *v) {
(void)msg;
(void)v;
puts(msg);
}
void info_callback(const char *msg, void *v) {
(void)msg;
(void)v;
puts(msg);
}
int main(int argc, char *argv[])
{
const char * v = opj_version();
const OPJ_COLOR_SPACE color_space = CLRSPC_GRAY;
int numcomps = 1;
int i;
int image_width = 256;
int image_height = 256;
opj_cparameters_t parameters;
int subsampling_dx = parameters.subsampling_dx;
int subsampling_dy = parameters.subsampling_dy;
const char outputfile[] = "testempty2.j2k";
opj_image_cmptparm_t cmptparm;
opj_image_t *image;
opj_codec_t* l_codec = 00;
opj_bool bSuccess;
FILE *f;
opj_stream_t *l_stream = 00;
(void)argc;
(void)argv;
opj_set_default_encoder_parameters(&parameters);
parameters.cod_format = J2K_CFMT;
puts(v);
cmptparm.prec = 8;
cmptparm.bpp = 8;
cmptparm.sgnd = 0;
cmptparm.dx = subsampling_dx;
cmptparm.dy = subsampling_dy;
cmptparm.w = image_width;
cmptparm.h = image_height;
image = opj_image_create(numcomps, &cmptparm, color_space);
assert( image );
for (i = 0; i < image_width * image_height; i++)
{
int compno;
for(compno = 0; compno < numcomps; compno++)
{
image->comps[compno].data[i] = 0;
}
}
/* 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_codec = opj_create_compress(CODEC_J2K);
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);
opj_setup_encoder(l_codec, &parameters, image);
strcpy(parameters.outfile, outputfile);
f = fopen(parameters.outfile, "wb");
assert( f );
l_stream = opj_stream_create_default_file_stream(f,OPJ_FALSE);
assert(l_stream);
bSuccess = opj_start_compress(l_codec,image,l_stream);
assert( bSuccess );
bSuccess = opj_encode(l_codec, l_stream);
assert( bSuccess );
bSuccess = opj_end_compress(l_codec, l_stream);
assert( bSuccess );
opj_stream_destroy(l_stream);
fclose(f);
opj_destroy_codec(l_codec);
opj_image_destroy(image);
/* read back the generated file */
{
FILE *fsrc = fopen(outputfile, "rb");
opj_codec_t* d_codec = 00;
opj_dparameters_t dparameters;
assert( fsrc );
d_codec = opj_create_decompress(CODEC_J2K);
opj_set_info_handler(d_codec, info_callback,00);
opj_set_warning_handler(d_codec, warning_callback,00);
opj_set_error_handler(d_codec, error_callback,00);
bSuccess = opj_setup_decoder(d_codec, &dparameters);
assert( bSuccess );
l_stream = opj_stream_create_default_file_stream(fsrc,1);
assert( l_stream );
bSuccess = opj_read_header(l_stream, d_codec, &image);
assert( bSuccess );
bSuccess = opj_decode(l_codec, l_stream, image);
assert( bSuccess );
bSuccess = opj_end_decompress(l_codec, l_stream);
assert( bSuccess );
opj_stream_destroy(l_stream);
fclose(fsrc);
opj_destroy_codec(d_codec);
opj_image_destroy(image);
}
puts( "end" );
return 0;
}