void error_callback(const char *msg, void *v) {
(void)msg;
(void)v;
-assert(0);
+puts(msg);
}
void warning_callback(const char *msg, void *v) {
(void)msg;
const char * v = opj_version();
const OPJ_COLOR_SPACE color_space = OPJ_CLRSPC_GRAY;
- int numcomps = 1;
- int i;
- int image_width = 256;
- int image_height = 256;
+ unsigned int numcomps = 1;
+ unsigned int i;
+ unsigned int image_width = 256;
+ unsigned int image_height = 256;
opj_cparameters_t parameters;
- int subsampling_dx = parameters.subsampling_dx;
- int subsampling_dy = parameters.subsampling_dy;
+ unsigned int subsampling_dx;
+ unsigned int 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;
+ opj_stream_t *l_stream = 00;
(void)argc;
(void)argv;
opj_set_default_encoder_parameters(¶meters);
parameters.cod_format = J2K_CFMT;
puts(v);
+ subsampling_dx = (unsigned int)parameters.subsampling_dx;
+ subsampling_dy = (unsigned int)parameters.subsampling_dy;
cmptparm.prec = 8;
cmptparm.bpp = 8;
cmptparm.sgnd = 0;
cmptparm.dy = subsampling_dy;
cmptparm.w = image_width;
cmptparm.h = image_height;
+ strncpy(parameters.outfile, outputfile, sizeof(parameters.outfile)-1);
image = opj_image_create(numcomps, &cmptparm, color_space);
assert( image );
for (i = 0; i < image_width * image_height; i++)
{
- int compno;
+ unsigned 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);
+ /* 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(OPJ_CODEC_J2K);
opj_set_info_handler(l_codec, info_callback,00);
opj_setup_encoder(l_codec, ¶meters, image);
- strcpy(parameters.outfile, outputfile);
- f = fopen(parameters.outfile, "wb");
- assert( f );
-
- l_stream = opj_stream_create_default_file_stream(f,OPJ_FALSE);
+ l_stream = opj_stream_create_default_file_stream(parameters.outfile,OPJ_FALSE);
+ if( !l_stream )
+ {
+ fprintf( stderr, "Something went wrong during creation of stream\n" );
+ opj_destroy_codec(l_codec);
+ opj_image_destroy(image);
+ opj_stream_destroy(l_stream);
+ return 1;
+ }
assert(l_stream);
bSuccess = opj_start_compress(l_codec,image,l_stream);
+ if( !bSuccess )
+ {
+ opj_stream_destroy(l_stream);
+ opj_destroy_codec(l_codec);
+ opj_image_destroy(image);
+ return 0;
+ }
assert( bSuccess );
bSuccess = opj_encode(l_codec, l_stream);
bSuccess = opj_end_compress(l_codec, l_stream);
assert( bSuccess );
- opj_stream_destroy_v3(l_stream);
- fclose(f);
+ opj_stream_destroy(l_stream);
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 );
+ opj_dparameters_t dparameters;
d_codec = opj_create_decompress(OPJ_CODEC_J2K);
opj_set_info_handler(d_codec, info_callback,00);
bSuccess = opj_setup_decoder(d_codec, &dparameters);
assert( bSuccess );
- l_stream = opj_stream_create_default_file_stream(fsrc,1);
+ l_stream = opj_stream_create_default_file_stream(outputfile,1);
assert( l_stream );
bSuccess = opj_read_header(l_stream, d_codec, &image);
bSuccess = opj_decode(l_codec, l_stream, image);
assert( bSuccess );
- bSuccess = opj_end_decompress(l_codec, l_stream);
+ bSuccess = opj_end_decompress(l_codec, l_stream);
assert( bSuccess );
- opj_stream_destroy_v3(l_stream);
- fclose(fsrc);
+ opj_stream_destroy(l_stream);
+
opj_destroy_codec(d_codec);
opj_image_destroy(image);