2 * Copyright (c) 2005, Herv� Drolon, FreeImage Team
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.
28 #include "opj_includes.h"
30 opj_dinfo_t* opj_create_decompress(OPJ_CODEC_FORMAT format) {
31 opj_dinfo_t *dinfo = (opj_dinfo_t*)opj_malloc(sizeof(opj_dinfo_t));
32 if(!dinfo) return NULL;
33 dinfo->is_decompressor = true;
37 /* get a J2K decoder handle */
38 dinfo->j2k_handle = (void*)j2k_create_decompress((opj_common_ptr)dinfo);
39 if(!dinfo->j2k_handle) {
45 /* get a JP2 decoder handle */
46 dinfo->jp2_handle = (void*)jp2_create_decompress((opj_common_ptr)dinfo);
47 if(!dinfo->jp2_handle) {
57 dinfo->codec_format = format;
62 void opj_destroy_decompress(opj_dinfo_t *dinfo) {
64 /* destroy the codec */
65 switch(dinfo->codec_format) {
68 j2k_destroy_decompress((opj_j2k_t*)dinfo->j2k_handle);
71 jp2_destroy_decompress((opj_jp2_t*)dinfo->jp2_handle);
74 /* destroy the decompressor */
79 void opj_set_default_decoder_parameters(opj_dparameters_t *parameters) {
81 memset(parameters, 0, sizeof(opj_dparameters_t));
82 /* default decoding parameters */
83 parameters->cp_layer = 0;
84 parameters->cp_reduce = 0;
86 parameters->decod_format = -1;
87 parameters->cod_format = -1;
91 void opj_setup_decoder(opj_dinfo_t *dinfo, opj_dparameters_t *parameters) {
92 if(dinfo && parameters) {
93 switch(dinfo->codec_format) {
96 j2k_setup_decoder((opj_j2k_t*)dinfo->j2k_handle, parameters);
99 jp2_setup_decoder((opj_jp2_t*)dinfo->jp2_handle, parameters);
105 opj_image_t* opj_decode(opj_dinfo_t *dinfo, opj_cio_t *cio) {
107 switch(dinfo->codec_format) {
109 return j2k_decode((opj_j2k_t*)dinfo->j2k_handle, cio);
111 return j2k_decode_jpt_stream((opj_j2k_t*)dinfo->j2k_handle, cio);
113 return jp2_decode((opj_jp2_t*)dinfo->jp2_handle, cio);
120 opj_cinfo_t* opj_create_compress(OPJ_CODEC_FORMAT format) {
121 opj_cinfo_t *cinfo = (opj_cinfo_t*)opj_malloc(sizeof(opj_cinfo_t));
122 if(!cinfo) return NULL;
123 cinfo->is_decompressor = false;
126 /* get a J2K coder handle */
127 cinfo->j2k_handle = (void*)j2k_create_compress((opj_common_ptr)cinfo);
128 if(!cinfo->j2k_handle) {
134 /* get a JP2 coder handle */
135 cinfo->jp2_handle = (void*)jp2_create_compress((opj_common_ptr)cinfo);
136 if(!cinfo->jp2_handle) {
146 cinfo->codec_format = format;
151 void opj_destroy_compress(opj_cinfo_t *cinfo) {
153 /* destroy the codec */
154 switch(cinfo->codec_format) {
156 j2k_destroy_decompress((opj_j2k_t*)cinfo->j2k_handle);
159 jp2_destroy_decompress((opj_jp2_t*)cinfo->jp2_handle);
162 /* destroy the decompressor */
167 void opj_set_default_encoder_parameters(opj_cparameters_t *parameters) {
169 memset(parameters, 0, sizeof(opj_cparameters_t));
170 /* default coding parameters */
171 parameters->numresolution = 6;
172 parameters->cblockw_init = 64;
173 parameters->cblockh_init = 64;
174 parameters->prog_order = LRCP;
175 parameters->roi_compno = -1; /* no ROI */
176 parameters->subsampling_dx = 1;
177 parameters->subsampling_dy = 1;
179 parameters->decod_format = -1;
180 parameters->cod_format = -1;
184 void opj_setup_encoder(opj_cinfo_t *cinfo, opj_cparameters_t *parameters, opj_image_t *image) {
185 if(cinfo && parameters && image) {
186 switch(cinfo->codec_format) {
188 j2k_setup_encoder((opj_j2k_t*)cinfo->j2k_handle, parameters, image);
191 jp2_setup_encoder((opj_jp2_t*)cinfo->jp2_handle, parameters, image);
197 bool opj_encode(opj_cinfo_t *cinfo, opj_cio_t *cio, opj_image_t *image, char *index) {
198 if(cinfo && cio && image) {
199 switch(cinfo->codec_format) {
201 return j2k_encode((opj_j2k_t*)cinfo->j2k_handle, cio, image, index);
203 return jp2_encode((opj_jp2_t*)cinfo->jp2_handle, cio, image, index);