237 lines
7.8 KiB
C
237 lines
7.8 KiB
C
/*
|
|
* $Id: jp2k_decoder.c 53 2011-05-09 16:55:39Z kaori $
|
|
*
|
|
* Copyright (c) 2002-2011, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
|
|
* Copyright (c) 2002-2011, Professor Benoit Macq
|
|
* Copyright (c) 2010-2011, Kaori Hagihara
|
|
* 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 <stdio.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
#include <assert.h>
|
|
#include <limits.h>
|
|
#include "jp2k_decoder.h"
|
|
#include "openjpeg.h"
|
|
|
|
|
|
void error_callback(const char *msg, void *client_data);
|
|
void warning_callback(const char *msg, void *client_data);
|
|
void info_callback(const char *msg, void *client_data);
|
|
|
|
Byte_t * imagetopnm(opj_image_t *image, ihdrbox_param_t **ihdrbox);
|
|
|
|
Byte_t * j2k_to_pnm( FILE *fp, ihdrbox_param_t **ihdrbox)
|
|
{
|
|
Byte_t *pnmstream = NULL;
|
|
opj_dparameters_t parameters; /* decompression parameters */
|
|
opj_image_t *image = NULL;
|
|
opj_codec_t *l_codec = NULL; /* handle to a decompressor */
|
|
opj_stream_t *l_stream = NULL;
|
|
|
|
|
|
|
|
/* set decoding parameters to default values */
|
|
opj_set_default_decoder_parameters(¶meters);
|
|
|
|
/* set a byte stream */
|
|
l_stream = opj_stream_create_default_file_stream( fp, 1);
|
|
if (!l_stream){
|
|
fprintf(stderr, "ERROR -> failed to create the stream from the file\n");
|
|
return NULL;
|
|
}
|
|
|
|
/* decode the code-stream */
|
|
/* ---------------------- */
|
|
|
|
/* JPEG-2000 codestream */
|
|
/* get a decoder handle */
|
|
l_codec = opj_create_decompress_v2(CODEC_J2K);
|
|
|
|
/* 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);
|
|
|
|
/* setup the decoder decoding parameters using user parameters */
|
|
if ( !opj_setup_decoder_v2(l_codec, ¶meters) ){
|
|
fprintf(stderr, "ERROR -> j2k_dump: failed to setup the decoder\n");
|
|
return NULL;
|
|
}
|
|
|
|
/* Read the main header of the codestream and if necessary the JP2 boxes*/
|
|
if(! opj_read_header( l_stream, l_codec, &image)){
|
|
fprintf(stderr, "ERROR -> j2k_to_image: failed to read the header\n");
|
|
opj_stream_destroy(l_stream);
|
|
opj_destroy_codec(l_codec);
|
|
opj_image_destroy(image);
|
|
return NULL;
|
|
}
|
|
|
|
#ifdef TODO /*decode area could be set from j2k_to_pnm call, modify the protocol between JPIP viewer and opj_dec_server*/
|
|
if (! opj_set_decode_area( l_codec, image, parameters.DA_x0, parameters.DA_y0, parameters.DA_x1, parameters.DA_y1)){
|
|
fprintf(stderr, "ERROR -> j2k_to_image: failed to set the decoded area\n");
|
|
opj_stream_destroy(l_stream);
|
|
opj_destroy_codec(l_codec);
|
|
opj_image_destroy(image);
|
|
return NULL;
|
|
}
|
|
#endif /*TODO*/
|
|
|
|
/* Get the decoded image */
|
|
if ( !( opj_decode_v2(l_codec, l_stream, image) && opj_end_decompress(l_codec,l_stream) ) ) {
|
|
fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
|
|
opj_stream_destroy(l_stream);
|
|
opj_destroy_codec(l_codec);
|
|
opj_image_destroy(image);
|
|
return NULL;
|
|
}
|
|
|
|
fprintf(stderr, "image is decoded!\n");
|
|
|
|
/* close the byte stream */
|
|
opj_stream_destroy(l_stream);
|
|
|
|
/* create output image */
|
|
/* ------------------- */
|
|
if( (pnmstream = imagetopnm( image, ihdrbox))==NULL)
|
|
fprintf( stderr, "PNM image not generated\n");
|
|
|
|
/* free remaining structures */
|
|
if(l_codec) {
|
|
opj_destroy_codec(l_codec);
|
|
}
|
|
|
|
/* free image data structure */
|
|
opj_image_destroy(image);
|
|
|
|
return pnmstream;
|
|
}
|
|
|
|
|
|
/**
|
|
sample error callback expecting a FILE* client object
|
|
*/
|
|
void error_callback(const char *msg, void *client_data) {
|
|
FILE *stream = (FILE*)client_data;
|
|
fprintf(stream, "[ERROR] %s", msg);
|
|
}
|
|
/**
|
|
sample warning callback expecting a FILE* client object
|
|
*/
|
|
void warning_callback(const char *msg, void *client_data) {
|
|
FILE *stream = (FILE*)client_data;
|
|
fprintf(stream, "[WARNING] %s", msg);
|
|
}
|
|
/**
|
|
sample debug callback expecting no client object
|
|
*/
|
|
void info_callback(const char *msg, void *client_data) {
|
|
(void)client_data;
|
|
(void)msg;
|
|
/* fprintf(stdout, "[INFO] %s", msg); */
|
|
}
|
|
|
|
|
|
Byte_t * imagetopnm(opj_image_t *image, ihdrbox_param_t **ihdrbox)
|
|
{
|
|
OPJ_UINT32 adjustR, adjustG=0, adjustB=0;
|
|
OPJ_SIZE_T datasize;
|
|
Byte_t *pix=NULL, *ptr=NULL;
|
|
OPJ_UINT32 i;
|
|
|
|
if(*ihdrbox){
|
|
if( (*ihdrbox)->nc != image->numcomps)
|
|
fprintf( stderr, "Exception: num of components not identical, codestream: %d, ihdrbox: %d\n", image->numcomps, (*ihdrbox)->nc);
|
|
|
|
if( (*ihdrbox)->width != image->comps[0].w)
|
|
(*ihdrbox)->width = image->comps[0].w;
|
|
|
|
if( (*ihdrbox)->height != image->comps[0].h)
|
|
(*ihdrbox)->height = image->comps[0].h;
|
|
|
|
if( (*ihdrbox)->bpc != image->comps[0].prec)
|
|
fprintf( stderr, "Exception: bits per component not identical, codestream: %d, ihdrbox: %d\n", image->comps[0].prec, (*ihdrbox)->bpc);
|
|
}
|
|
else{
|
|
*ihdrbox = (ihdrbox_param_t *)malloc( sizeof(ihdrbox_param_t));
|
|
(*ihdrbox)->width = image->comps[0].w;
|
|
(*ihdrbox)->height = image->comps[0].h;
|
|
assert( image->comps[0].prec < 256 );
|
|
(*ihdrbox)->bpc = (Byte_t)image->comps[0].prec;
|
|
assert( image->numcomps < USHRT_MAX );
|
|
(*ihdrbox)->nc = (Byte2_t)image->numcomps;
|
|
}
|
|
|
|
datasize = (image->numcomps)*(image->comps[0].w)*(image->comps[0].h);
|
|
|
|
if (image->comps[0].prec > 8) {
|
|
adjustR = image->comps[0].prec - 8;
|
|
printf("PNM CONVERSION: Truncating component 0 from %d bits to 8 bits\n", image->comps[0].prec);
|
|
}
|
|
else
|
|
adjustR = 0;
|
|
|
|
if( image->numcomps == 3){
|
|
if (image->comps[1].prec > 8) {
|
|
adjustG = image->comps[1].prec - 8;
|
|
printf("PNM CONVERSION: Truncating component 1 from %d bits to 8 bits\n", image->comps[1].prec);
|
|
}
|
|
else
|
|
adjustG = 0;
|
|
|
|
if (image->comps[2].prec > 8) {
|
|
adjustB = image->comps[2].prec - 8;
|
|
printf("PNM CONVERSION: Truncating component 2 from %d bits to 8 bits\n", image->comps[2].prec);
|
|
}
|
|
else
|
|
adjustB = 0;
|
|
}
|
|
|
|
pix = (Byte_t *)malloc( datasize);
|
|
ptr = pix;
|
|
|
|
for( i = 0; i < image->comps[0].w * image->comps[0].h; i++){
|
|
int r, g, b;
|
|
r = image->comps[0].data[i];
|
|
r += (image->comps[0].sgnd ? 1 << (image->comps[0].prec - 1) : 0);
|
|
|
|
/* if( adjustR > 0) */
|
|
*(ptr++) = (Byte_t) ((r >> adjustR)+((r >> (adjustR-1))%2));
|
|
|
|
if( image->numcomps == 3){
|
|
g = image->comps[1].data[i];
|
|
g += (image->comps[1].sgnd ? 1 << (image->comps[1].prec - 1) : 0);
|
|
*(ptr++) = (Byte_t) ((g >> adjustG)+((g >> (adjustG-1))%2));
|
|
|
|
b = image->comps[2].data[i];
|
|
b += (image->comps[2].sgnd ? 1 << (image->comps[2].prec - 1) : 0);
|
|
*(ptr++) = (Byte_t) ((b >> adjustB)+((b >> (adjustB-1))%2));
|
|
}
|
|
}
|
|
|
|
return pix;
|
|
}
|