246 lines
6.2 KiB
C
246 lines
6.2 KiB
C
/*
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* Copyright (c) 2008, Jerome Fimes, Communications & Systemes <jerome.fimes@c-s.fr>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#define USE_OPJ_DEPRECATED
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/* set this macro to enable profiling for the given test */
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/* warning : in order to be effective, openjpeg must have been built with profiling enabled !! */
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//#define _PROFILE
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#include "openjpeg.h"
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#include "stdlib.h"
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#ifdef WIN32
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#include <malloc.h>
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#endif
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#define DA_X0 0
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#define DA_Y0 0
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#define DA_X1 1000
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#define DA_Y1 1000
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#define INPUT_FILE "test.j2k"
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/* -------------------------------------------------------------------------- */
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/**
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sample error callback expecting a FILE* client object
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*/
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void error_callback_file(const char *msg, void *client_data) {
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FILE *stream = (FILE*)client_data;
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fprintf(stream, "[ERROR] %s", msg);
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}
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/**
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sample warning callback expecting a FILE* client object
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*/
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void warning_callback_file(const char *msg, void *client_data) {
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FILE *stream = (FILE*)client_data;
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fprintf(stream, "[WARNING] %s", msg);
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}
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/**
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sample error debug callback expecting no client object
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*/
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void error_callback(const char *msg, void *client_data) {
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(void)client_data;
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fprintf(stdout, "[ERROR] %s", msg);
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}
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/**
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sample warning debug callback expecting no client object
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*/
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void warning_callback(const char *msg, void *client_data) {
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(void)client_data;
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fprintf(stdout, "[WARNING] %s", msg);
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}
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/**
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sample debug callback expecting no client object
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*/
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void info_callback(const char *msg, void *client_data) {
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(void)client_data;
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fprintf(stdout, "[INFO] %s", msg);
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}
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/* -------------------------------------------------------------------------- */
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int main ()
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{
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opj_dparameters_t l_param;
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opj_codec_t * l_codec;
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opj_image_t * l_image;
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FILE * l_file;
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opj_stream_t * l_stream;
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OPJ_UINT32 l_data_size;
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OPJ_UINT32 l_max_data_size = 1000;
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OPJ_UINT32 l_tile_index;
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OPJ_BYTE * l_data = (OPJ_BYTE *) malloc(1000);
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bool l_go_on = true;
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OPJ_INT32 l_tile_x0,l_tile_y0;
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OPJ_UINT32 l_tile_width,l_tile_height,l_nb_tiles_x,l_nb_tiles_y,l_nb_comps;
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OPJ_INT32 l_current_tile_x0,l_current_tile_y0,l_current_tile_x1,l_current_tile_y1;
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PROFINIT();
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if
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(! l_data)
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{
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return 1;
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}
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opj_set_default_decoder_parameters(&l_param);
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/** you may here add custom decoding parameters */
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/* do not use layer decoding limitations */
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l_param.cp_layer = 0;
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/* do not use resolutions reductions */
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l_param.cp_reduce = 0;
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/* to decode only a part of the image data */
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//opj_restrict_decoding(&l_param,0,0,1000,1000);
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l_codec = opj_create_decompress(CODEC_J2K);
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if
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(! l_codec)
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{
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free(l_data);
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return 1;
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}
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/* catch events using our callbacks and give a local context */
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opj_set_info_handler(l_codec, info_callback,00);
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opj_set_warning_handler(l_codec, warning_callback,00);
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opj_set_error_handler(l_codec, error_callback,00);
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if
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(! opj_setup_decoder(l_codec,&l_param))
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{
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free(l_data);
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opj_destroy_codec(l_codec);
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return 1;
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}
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l_file = fopen(INPUT_FILE,"rb");
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if
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(! l_file)
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{
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fprintf(stdout, "Error opening input file\n");
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free(l_data);
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opj_destroy_codec(l_codec);
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return 1;
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}
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l_stream = opj_stream_create_default_file_stream(l_file,true);
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if
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(! opj_read_header(l_codec,
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&l_image,
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&l_tile_x0,
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&l_tile_y0,
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&l_tile_width,
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&l_tile_height,
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&l_nb_tiles_x,
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&l_nb_tiles_y,
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l_stream))
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{
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free(l_data);
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opj_stream_destroy(l_stream);
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fclose(l_file);
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opj_destroy_codec(l_codec);
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return 1;
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}
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printf("Setting decoding area to %d,%d,%d,%d\n", DA_X0, DA_Y0, DA_X1, DA_Y1);
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opj_set_decode_area(l_codec, DA_X0, DA_Y0, DA_X1, DA_Y1);
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while
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(l_go_on)
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{
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if
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(! opj_read_tile_header(
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l_codec,
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&l_tile_index,
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&l_data_size,
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&l_current_tile_x0,
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&l_current_tile_y0,
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&l_current_tile_x1,
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&l_current_tile_y1,
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&l_nb_comps,
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&l_go_on,
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l_stream))
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{
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free(l_data);
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opj_stream_destroy(l_stream);
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fclose(l_file);
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opj_destroy_codec(l_codec);
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opj_image_destroy(l_image);
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return 1;
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}
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if
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(l_go_on)
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{
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if
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(l_data_size > l_max_data_size)
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{
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l_data = (OPJ_BYTE *) realloc(l_data,l_data_size);
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if
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(! l_data)
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{
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opj_stream_destroy(l_stream);
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fclose(l_file);
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opj_destroy_codec(l_codec);
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opj_image_destroy(l_image);
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return 1;
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}
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l_max_data_size = l_data_size;
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}
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if
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(! opj_decode_tile_data(l_codec,l_tile_index,l_data,l_data_size,l_stream))
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{
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free(l_data);
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opj_stream_destroy(l_stream);
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fclose(l_file);
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opj_destroy_codec(l_codec);
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opj_image_destroy(l_image);
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return 1;
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}
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/** now should inspect image to know the reduction factor and then how to behave with data */
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}
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}
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if
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(! opj_end_decompress(l_codec,l_stream))
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{
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free(l_data);
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opj_stream_destroy(l_stream);
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fclose(l_file);
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opj_destroy_codec(l_codec);
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opj_image_destroy(l_image);
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return 1;
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}
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free(l_data);
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opj_stream_destroy(l_stream);
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fclose(l_file);
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opj_destroy_codec(l_codec);
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opj_image_destroy(l_image);
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// Print profiling
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PROFPRINT();
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return 0;
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}
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