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openjpeg/libopenjpeg/cidx_manager.c

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/*
* $Id: cidx_manager.c 897 2011-08-28 21:43:57Z Kaori.Hagihara@gmail.com $
*
* Copyright (c) 2002-2011, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
* Copyright (c) 2002-2011, Professor Benoit Macq
* Copyright (c) 2003-2004, Yannick Verschueren
* 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 <stdlib.h>
#include "opj_includes.h"
/*
* Write CPTR Codestream finder box
*
* @param[in] coff offset of j2k codestream
* @param[in] clen length of j2k codestream
* @param[in] cio file output handle
*/
void write_cptr(int coff, int clen, opj_cio_t *cio);
/*
* Write main header index table (box)
*
* @param[in] coff offset of j2k codestream
* @param[in] cstr_info codestream information
* @param[in] cio file output handle
* @return length of mainmhix box
*/
int write_mainmhix( int coff, opj_codestream_info_t cstr_info, opj_cio_t *cio);
/*
* Check if EPH option is used
*
* @param[in] coff offset of j2k codestream
* @param[in] markers marker information
* @param[in] marknum number of markers
* @param[in] cio file output handle
* @return true if EPH is used
*/
opj_bool check_EPHuse( int coff, opj_marker_info_t *markers, int marknum, opj_cio_t *cio);
int write_cidx( int offset, opj_cio_t *cio, opj_image_t *image, opj_codestream_info_t cstr_info, int j2klen)
{
int len, i, lenp;
opj_jp2_box_t *box;
int num_box = 0;
opj_bool EPHused;
(void)image; /* unused ? */
lenp = -1;
box = (opj_jp2_box_t *)opj_calloc( 32, sizeof(opj_jp2_box_t));
for (i=0;i<2;i++){
if(i)
cio_seek( cio, lenp);
lenp = cio_tell( cio);
cio_skip( cio, 4); /* L [at the end] */
cio_write( cio, JPIP_CIDX, 4); /* CIDX */
write_cptr( offset, cstr_info.codestream_size, cio);
write_manf( i, num_box, box, cio);
num_box = 0;
box[num_box].length = write_mainmhix( offset, cstr_info, cio);
box[num_box].type = JPIP_MHIX;
num_box++;
box[num_box].length = write_tpix( offset, cstr_info, j2klen, cio);
box[num_box].type = JPIP_TPIX;
num_box++;
box[num_box].length = write_thix( offset, cstr_info, cio);
box[num_box].type = JPIP_THIX;
num_box++;
EPHused = check_EPHuse( offset, cstr_info.marker, cstr_info.marknum, cio);
box[num_box].length = write_ppix( offset, cstr_info, EPHused, j2klen, cio);
box[num_box].type = JPIP_PPIX;
num_box++;
box[num_box].length = write_phix( offset, cstr_info, EPHused, j2klen, cio);
box[num_box].type = JPIP_PHIX;
num_box++;
len = cio_tell( cio)-lenp;
cio_seek( cio, lenp);
cio_write( cio, len, 4); /* L */
cio_seek( cio, lenp+len);
}
opj_free( box);
return len;
}
void write_cptr(int coff, int clen, opj_cio_t *cio)
{
int len, lenp;
lenp = cio_tell( cio);
cio_skip( cio, 4); /* L [at the end] */
cio_write( cio, JPIP_CPTR, 4); /* T */
cio_write( cio, 0, 2); /* DR A PRECISER !! */
cio_write( cio, 0, 2); /* CONT */
cio_write( cio, coff, 8); /* COFF A PRECISER !! */
cio_write( cio, clen, 8); /* CLEN */
len = cio_tell( cio) - lenp;
cio_seek( cio, lenp);
cio_write( cio, len, 4); /* L */
cio_seek( cio, lenp+len);
}
void write_manf(int second, int v, opj_jp2_box_t *box, opj_cio_t *cio)
{
int len, lenp, i;
lenp = cio_tell( cio);
cio_skip( cio, 4); /* L [at the end] */
cio_write( cio, JPIP_MANF,4); /* T */
if (second){ /* Write only during the second pass */
for( i=0; i<v; i++){
cio_write( cio, box[i].length, 4); /* Box length */
cio_write( cio, box[i].type, 4); /* Box type */
}
}
len = cio_tell( cio) - lenp;
cio_seek( cio, lenp);
cio_write( cio, len, 4); /* L */
cio_seek( cio, lenp+len);
}
int write_mainmhix( int coff, opj_codestream_info_t cstr_info, opj_cio_t *cio)
{
int i;
int len, lenp;
lenp = cio_tell( cio);
cio_skip( cio, 4); /* L [at the end] */
cio_write( cio, JPIP_MHIX, 4); /* MHIX */
cio_write( cio, cstr_info.main_head_end-cstr_info.main_head_start+1, 8); /* TLEN */
for(i = 1; i < cstr_info.marknum; i++){ /* Marker restricted to 1 apparition, skip SOC marker */
cio_write( cio, cstr_info.marker[i].type, 2);
cio_write( cio, 0, 2);
cio_write( cio, cstr_info.marker[i].pos-coff, 8);
cio_write( cio, cstr_info.marker[i].len, 2);
}
len = cio_tell( cio) - lenp;
cio_seek( cio, lenp);
cio_write( cio, len, 4); /* L */
cio_seek( cio, lenp+len);
return len;
}
opj_bool check_EPHuse( int coff, opj_marker_info_t *markers, int marknum, opj_cio_t *cio)
{
opj_bool EPHused = OPJ_FALSE;
int i=0;
int org_pos;
unsigned int Scod;
for(i = 0; i < marknum; i++){
if( markers[i].type == J2K_MS_COD){
org_pos = cio_tell( cio);
cio_seek( cio, coff+markers[i].pos+2);
Scod = cio_read( cio, 1);
if( ((Scod >> 2) & 1))
EPHused = OPJ_TRUE;
cio_seek( cio, org_pos);
break;
}
}
return EPHused;
}
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