--- /dev/null
+/*
+ * 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 <openjpeg.h>
+#include <assert.h>
+#include <string.h>
+#include <stdio.h>
+
+#define J2K_CFMT 0
+
+void error_callback(const char *msg, void *v) {
+assert(0);
+}
+void warning_callback(const char *msg, void *v) {
+puts(msg);
+}
+void info_callback(const char *msg, void *v) {
+puts(msg);
+}
+
+int main(int argc, char *argv[])
+{
+ const char * v = opj_version();
+ puts(v);
+
+ 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;
+ opj_set_default_encoder_parameters(¶meters);
+ parameters.cod_format = J2K_CFMT;
+
+ int subsampling_dx = 0;
+ int subsampling_dy = 0;
+
+ opj_image_cmptparm_t cmptparm;
+ 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;
+
+ opj_image_t *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;
+ }
+ }
+
+ opj_event_mgr_t event_mgr;
+ event_mgr.error_handler = error_callback;
+ event_mgr.warning_handler = warning_callback;
+ event_mgr.info_handler = info_callback;
+
+ opj_cinfo_t* cinfo = opj_create_compress(CODEC_J2K);
+ opj_set_event_mgr((opj_common_ptr)cinfo, &event_mgr, stderr);
+
+ opj_setup_encoder(cinfo, ¶meters, image);
+
+ opj_cio_t *cio = opj_cio_open((opj_common_ptr)cinfo, NULL, 0);
+ assert( cio );
+ opj_bool bSuccess = opj_encode(cinfo, cio, image, NULL);
+ assert( bSuccess );
+
+ size_t codestream_length = cio_tell(cio);
+ assert( codestream_length );
+
+ strcpy(parameters.outfile, "testempty1.j2k");
+ FILE *f = fopen(parameters.outfile, "wb");
+ assert( f );
+ fwrite(cio->buffer, 1, codestream_length, f);
+ fclose(f);
+
+ opj_cio_close(cio);
+ opj_destroy_compress(cinfo);
+ opj_image_destroy(image);
+
+ puts( "end" );
+ return 0;
+}
--- /dev/null
+/*
+ * 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 <openjpeg.h>
+#include <assert.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#define J2K_CFMT 0
+
+void error_callback(const char *msg, void *v) {
+assert(0);
+}
+void warning_callback(const char *msg, void *v) {
+puts(msg);
+}
+void info_callback(const char *msg, void *v) {
+puts(msg);
+}
+
+int main(int argc, char *argv[])
+{
+ const char * v = opj_version();
+ puts(v);
+
+ 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;
+ opj_set_default_encoder_parameters(¶meters);
+ parameters.cod_format = J2K_CFMT;
+
+ int subsampling_dx = parameters.subsampling_dx;
+ int subsampling_dy = parameters.subsampling_dy;
+
+ opj_image_cmptparm_t cmptparm;
+ 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;
+
+ opj_image_t *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;
+ }
+ }
+
+ opj_event_mgr_t event_mgr;
+ event_mgr.error_handler = error_callback;
+ event_mgr.warning_handler = warning_callback;
+ event_mgr.info_handler = info_callback;
+
+ opj_cinfo_t* cinfo = opj_create_compress(CODEC_J2K);
+ opj_set_event_mgr((opj_common_ptr)cinfo, &event_mgr, stderr);
+
+ opj_setup_encoder(cinfo, ¶meters, image);
+
+ opj_cio_t *cio = opj_cio_open((opj_common_ptr)cinfo, NULL, 0);
+ assert( cio );
+ opj_bool bSuccess = opj_encode(cinfo, cio, image, NULL);
+ assert( bSuccess );
+
+ size_t codestream_length = cio_tell(cio);
+ assert( codestream_length );
+
+ const char outputfile[] = "testempty2.j2k";
+ strcpy(parameters.outfile, outputfile);
+ FILE *f = fopen(parameters.outfile, "wb");
+ assert( f );
+ fwrite(cio->buffer, 1, codestream_length, f);
+ fclose(f);
+
+ opj_cio_close(cio);
+ opj_destroy_compress(cinfo);
+ opj_image_destroy(image);
+
+ /* read back the generated file */
+ size_t file_length;
+ FILE *fsrc = fopen(outputfile, "rb");
+ assert( fsrc );
+ fseek(fsrc, 0, SEEK_END);
+ file_length = ftell(fsrc);
+ fseek(fsrc, 0, SEEK_SET);
+ unsigned char *src = (unsigned char *) malloc(file_length);
+ if (fread(src, 1, file_length, fsrc) != file_length)
+ {
+ free(src);
+ fclose(fsrc);
+ return 1;
+ }
+ fclose(fsrc);
+
+ opj_dinfo_t* dinfo = NULL; /* handle to a decompressor */
+ dinfo = opj_create_decompress(CODEC_J2K);
+
+ opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr);
+
+ opj_dparameters_t dparameters;
+ opj_set_default_decoder_parameters(&dparameters);
+ opj_setup_decoder(dinfo, &dparameters);
+
+ cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
+ image = opj_decode(dinfo, cio);
+ if(!image) {
+ opj_destroy_decompress(dinfo);
+ opj_cio_close(cio);
+ return 1;
+ }
+ opj_destroy_decompress(dinfo);
+ opj_cio_close(cio);
+
+
+ puts( "end" );
+ return 0;
+}