openjpeg/applications/jpip/libopenjpip/j2kheader_manager.c

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/*
* $Id$
*
* 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
* Copyright (c) 2011, Lucian Corlaciu, GSoC
* 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 <string.h>
#include <math.h>
#include "j2kheader_manager.h"
#ifdef SERVER
#include "fcgi_stdio.h"
#define logstream FCGI_stdout
#else
#define FCGI_stdout stdout
#define FCGI_stderr stderr
#define logstream stderr
#endif /*SERVER */
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SIZmarker_param_t get_SIZmkrdata_from_j2kstream( Byte_t *SIZstream);
CODmarker_param_t get_CODmkrdata_from_j2kstream( Byte_t *CODstream);
bool get_mainheader_from_j2kstream( Byte_t *j2kstream, SIZmarker_param_t *SIZ, CODmarker_param_t *COD)
{
if( *j2kstream++ != 0xff || *j2kstream++ != 0x4f){
fprintf( FCGI_stderr, "Error, j2kstream is not starting with SOC marker\n");
return false;
}
if( SIZ){
*SIZ = get_SIZmkrdata_from_j2kstream( j2kstream);
if( SIZ->Lsiz == 0)
return false;
j2kstream += (SIZ->Lsiz+2);
}
if( COD){
if( !SIZ)
j2kstream += (big2( j2kstream+2) + 2);
*COD = get_CODmkrdata_from_j2kstream( j2kstream);
if( COD->Lcod == 0)
return false;
}
return true;
}
SIZmarker_param_t get_SIZmkrdata_from_j2kstream( Byte_t *SIZstream)
{
SIZmarker_param_t SIZ = {0};
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int i;
if( *SIZstream++ != 0xff || *SIZstream++ != 0x51){
fprintf( FCGI_stderr, "Error, SIZ marker not found in the reconstructed j2kstream\n");
return SIZ;
}
SIZ.Lsiz = big2( SIZstream);
SIZ.Rsiz = big2( SIZstream+2);
SIZ.Xsiz = big4( SIZstream+4);
SIZ.Ysiz = big4( SIZstream+8);
SIZ.XOsiz = big4( SIZstream+12);
SIZ.YOsiz = big4( SIZstream+16);
SIZ.XTsiz = big4( SIZstream+20);
SIZ.YTsiz = big4( SIZstream+24);
SIZ.XTOsiz = big4( SIZstream+28);
SIZ.YTOsiz = big4( SIZstream+32);
SIZ.Csiz = big2( SIZstream+36);
SIZ.XTnum = ( SIZ.Xsiz-SIZ.XTOsiz+SIZ.XTsiz-1)/SIZ.XTsiz;
SIZ.YTnum = ( SIZ.Ysiz-SIZ.YTOsiz+SIZ.YTsiz-1)/SIZ.YTsiz;
for( i=0; i<(int)SIZ.Csiz; i++){
SIZ.Ssiz[i] = *(SIZstream+(38+i*3));
SIZ.XRsiz[i] = *(SIZstream+(39+i*3));
SIZ.YRsiz[i] = *(SIZstream+(40+i*3));
}
return SIZ;
}
CODmarker_param_t get_CODmkrdata_from_j2kstream( Byte_t *CODstream)
{
CODmarker_param_t COD;
int i;
if( *CODstream++ != 0xff || *CODstream++ != 0x52){
fprintf( FCGI_stderr, "Error, COD marker not found in the reconstructed j2kstream\n");
return COD;
}
COD.Lcod = big2( CODstream);
COD.Scod = *( CODstream+2);
COD.prog_order = *( CODstream+3);
COD.numOflayers = big2( CODstream+4);
COD.numOfdecomp = *( CODstream+7);
if(COD.Scod & 0x01){
COD.XPsiz = (Byte4_t *)malloc( (COD.numOfdecomp+1)*sizeof(Byte4_t));
COD.YPsiz = (Byte4_t *)malloc( (COD.numOfdecomp+1)*sizeof(Byte4_t));
for( i=0; i<=COD.numOfdecomp; i++){
/*precinct size */
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COD.XPsiz[i] = pow( 2, *( CODstream+12+i) & 0x0F);
COD.YPsiz[i] = pow( 2, (*( CODstream+12+i) & 0xF0) >> 4);
}
}
else{
COD.XPsiz = (Byte4_t *)malloc( sizeof(Byte4_t));
COD.YPsiz = (Byte4_t *)malloc( sizeof(Byte4_t));
COD.XPsiz[0] = COD.YPsiz[0] = pow(2,15);
}
return COD;
}
bool modify_SIZmkrstream( SIZmarker_param_t SIZ, int difOfdecomplev, Byte_t *SIZstream);
Byte2_t modify_CODmkrstream( CODmarker_param_t COD, int numOfdecomp, Byte_t *CODstream);
bool modify_mainheader( Byte_t *j2kstream, int numOfdecomp, SIZmarker_param_t SIZ, CODmarker_param_t COD, Byte8_t *j2klen)
{
Byte2_t newLcod;
if( *j2kstream++ != 0xff || *j2kstream++ != 0x4f){
fprintf( FCGI_stderr, "Error, j2kstream is not starting with SOC marker\n");
return false;
}
if(!modify_SIZmkrstream( SIZ, COD.numOfdecomp-numOfdecomp, j2kstream))
return false;
j2kstream += SIZ.Lsiz+2;
if( !(newLcod = modify_CODmkrstream( COD, numOfdecomp, j2kstream)))
return false;
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memmove( j2kstream+2+newLcod, j2kstream+2+COD.Lcod, (*j2klen)-(SIZ.Lsiz+COD.Lcod+6));
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*j2klen -= ( COD.Lcod - newLcod);
return true;
}
bool modify_SIZmkrstream( SIZmarker_param_t SIZ, int difOfdecomplev, Byte_t *SIZstream)
{
int i;
if( *SIZstream++ != 0xff || *SIZstream++ != 0x51){
fprintf( FCGI_stderr, "Error, SIZ marker not found in the reconstructed j2kstream\n");
return false;
}
for( i=0; i<difOfdecomplev; i++){
SIZ.Xsiz = ceil( (double)SIZ.Xsiz/2.0);
SIZ.Ysiz = ceil( (double)SIZ.Ysiz/2.0);
SIZ.XOsiz = ceil( (double)SIZ.XOsiz/2.0);
SIZ.YOsiz = ceil( (double)SIZ.YOsiz/2.0);
SIZ.XTsiz = ceil( (double)SIZ.XTsiz/2.0);
SIZ.YTsiz = ceil( (double)SIZ.YTsiz/2.0);
SIZ.XTOsiz = ceil( (double)SIZ.XTOsiz/2.0);
SIZ.YTOsiz = ceil( (double)SIZ.YTOsiz/2.0);
}
SIZstream += 4; /* skip Lsiz + Rsiz */
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modify_4Bytecode( SIZ.Xsiz, SIZstream);
modify_4Bytecode( SIZ.Ysiz, SIZstream+4);
modify_4Bytecode( SIZ.XOsiz, SIZstream+8);
modify_4Bytecode( SIZ.YOsiz, SIZstream+12);
modify_4Bytecode( SIZ.XTsiz, SIZstream+16);
modify_4Bytecode( SIZ.YTsiz, SIZstream+20);
modify_4Bytecode( SIZ.XTOsiz, SIZstream+24);
modify_4Bytecode( SIZ.YTOsiz, SIZstream+28);
return true;
}
Byte2_t modify_CODmkrstream( CODmarker_param_t COD, int numOfdecomp, Byte_t *CODstream)
{
Byte2_t newLcod;
if( *CODstream++ != 0xff || *CODstream++ != 0x52){
fprintf( FCGI_stderr, "Error, COD marker not found in the reconstructed j2kstream\n");
return 0;
}
if( COD.Scod & 0x01){
newLcod = 13+numOfdecomp;
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*CODstream++ = (Byte_t)((Byte2_t)(newLcod & 0xff00) >> 8);
*CODstream++ = (Byte_t)(newLcod & 0x00ff);
}
else{
newLcod = COD.Lcod;
CODstream += 2;
}
CODstream += 5; /* skip Scod & SGcod */
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/* SPcod */
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*CODstream++ = (Byte_t) numOfdecomp;
return newLcod;
}
bool modify_COCmkrstream( int numOfdecomp, Byte_t *COCstream, Byte2_t Csiz, Byte2_t *oldLcoc, Byte2_t *newLcoc);
bool modify_tileheader( Byte_t *j2kstream, Byte8_t SOToffset, int numOfdecomp, Byte2_t Csiz, Byte8_t *j2klen)
{
Byte4_t Psot; /* tile part length ref A.4.2 Start of tile-part SOT */
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Byte_t *thstream, *SOTstream, *Psot_stream;
Byte2_t oldLcoc, newLcoc;
SOTstream = thstream = j2kstream+SOToffset;
if( *SOTstream++ != 0xff || *SOTstream++ != 0x90){
fprintf( FCGI_stderr, "Error, thstream is not starting with SOT marker\n");
return false;
}
SOTstream += 4; /* skip Lsot & Isot */
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Psot = (SOTstream[0]<<24)+(SOTstream[1]<<16)+(SOTstream[2]<<8)+(SOTstream[3]);
Psot_stream = SOTstream;
thstream += 12; /* move to next marker (SOT always 12bytes) */
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while( !( *thstream == 0xff && *(thstream+1) == 0x93)){ /* search SOD */
if( numOfdecomp != -1 && *thstream == 0xff && *(thstream+1) == 0x53){ /* COC */
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if( !modify_COCmkrstream( numOfdecomp, thstream, Csiz, &oldLcoc, &newLcoc))
return false;
memmove( thstream+newLcoc+2, thstream+oldLcoc+2, (*j2klen)-(thstream-j2kstream+oldLcoc+2));
*j2klen -= ( oldLcoc - newLcoc);
}
thstream += 2;
thstream += ((thstream[0]<<8)+(thstream[1])); /* marker length */
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}
if( (*j2klen)-SOToffset != Psot){
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Psot = (*j2klen)-SOToffset;
modify_4Bytecode( Psot, Psot_stream);
}
return true;
}
bool modify_COCmkrstream( int numOfdecomp, Byte_t *COCstream, Byte2_t Csiz, Byte2_t *oldLcoc, Byte2_t *newLcoc)
{
if( *COCstream++ != 0xff || *COCstream++ != 0x53){
fprintf( FCGI_stderr, "Error, COC marker not found in the reconstructed j2kstream\n");
return false;
}
*oldLcoc = big2( COCstream);
*newLcoc = (Csiz < 257 ? 10 : 11) + numOfdecomp;
*COCstream++ = (Byte_t)((Byte2_t)((*newLcoc) & 0xff00) >> 8);
*COCstream++ = (Byte_t)((*newLcoc) & 0x00ff);
if( Csiz < 257) COCstream +=2; /* skip Ccoc & Scoc */
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else COCstream += 3;
*COCstream = numOfdecomp;
return true;
}