OPJ_BOOL check_JP2boxidx( boxlist_param_t *toplev_boxlist)
{
box_param_t *iptr, *fidx, *prxy;
box_param_t *cidx, *jp2c;
Byte8_t off;
Byte8_t len;
int pos;
Byte8_t ooff;
boxheader_param_t *obh;
Byte_t ni;
Byte8_t ioff;
boxheader_param_t *ibh;
iptr = search_box( "iptr", toplev_boxlist);
fidx = search_box( "fidx", toplev_boxlist);
cidx = search_box( "cidx", toplev_boxlist);
jp2c = search_box( "jp2c", toplev_boxlist);
prxy = gene_childboxbyType( fidx, 0, "prxy");
off = fetch_DBox8bytebigendian( iptr, 0);
if( off != (Byte8_t)fidx->offset)
fprintf( FCGI_stderr, "Reference File Index box offset in Index Finder box not correct\n");
len = fetch_DBox8bytebigendian( iptr, 8);
if( len != fidx->length)
fprintf( FCGI_stderr, "Reference File Index box length in Index Finder box not correct\n");
pos = 0;
ooff = fetch_DBox8bytebigendian( prxy, pos);
if( ooff != (Byte8_t)jp2c->offset)
fprintf( FCGI_stderr, "Reference jp2c offset in prxy box not correct\n");
pos += 8;
obh = gene_childboxheader( prxy, pos);
if( obh->length != jp2c->length || strncmp( obh->type, "jp2c",4)!=0)
fprintf( FCGI_stderr, "Reference jp2c header in prxy box not correct\n");
pos += obh->headlen;
opj_free(obh);
ni = fetch_DBox1byte( prxy, pos);
if( ni != 1){
fprintf( FCGI_stderr, "Multiple indexes not supported\n");
return OPJ_FALSE;
}
pos += 1;
ioff = fetch_DBox8bytebigendian( prxy, pos);
if( ioff != (Byte8_t)cidx->offset)
fprintf( FCGI_stderr, "Reference cidx offset in prxy box not correct\n");
pos += 8;
ibh = gene_childboxheader( prxy, pos);
if( ibh->length != cidx->length || strncmp( ibh->type, "cidx",4)!=0)
fprintf( FCGI_stderr, "Reference cidx header in prxy box not correct\n");
pos += ibh->headlen;
opj_free(ibh);
opj_free(prxy);
return OPJ_TRUE;
}
faixbox_param_t * gene_faixbox( box_param_t *box)
{
faixbox_param_t *faix;
size_t numOfelem;
long pos = 0;
faix = ( faixbox_param_t *)malloc( sizeof(faixbox_param_t));
faix->version = fetch_DBox1byte( box, (pos+=1)-1);
if( 3< faix->version){
fprintf( FCGI_stderr, "Error: version %d in faix box is reserved for ISO use.\n", faix->version);
free(faix);
return NULL;
}
if( faix->version%2){
subfaixbox8_param_t *subfaixbox;
size_t i;
faix->subfaixbox.byte8_params = (subfaixbox8_param_t *)malloc( sizeof(subfaixbox8_param_t));
subfaixbox = faix->subfaixbox.byte8_params;
subfaixbox->nmax = fetch_DBox8bytebigendian( box, (pos+=8)-8);
subfaixbox->m = fetch_DBox8bytebigendian( box, (pos+=8)-8);
numOfelem = subfaixbox->nmax*subfaixbox->m;
subfaixbox->elem = ( faixelem8_param_t *)malloc( numOfelem*sizeof(faixelem8_param_t));
if( faix->version == 3)
subfaixbox->aux = ( Byte4_t *)malloc( numOfelem*sizeof(Byte4_t));
for( i=0; i<numOfelem; i++){
subfaixbox->elem[i].off = fetch_DBox8bytebigendian( box, (pos+=8)-8);
subfaixbox->elem[i].len = fetch_DBox8bytebigendian( box, (pos+=8)-8);
if( faix->version == 3)
subfaixbox->aux[i] = fetch_DBox4bytebigendian( box, (pos+=4)-4);
}
}
else{
subfaixbox4_param_t *subfaixbox;
size_t i;
faix->subfaixbox.byte4_params = (subfaixbox4_param_t *)malloc( sizeof(subfaixbox4_param_t));
subfaixbox = faix->subfaixbox.byte4_params;
subfaixbox->nmax = fetch_DBox4bytebigendian( box, (pos+=4)-4);
subfaixbox->m = fetch_DBox4bytebigendian( box, (pos+=4)-4);
numOfelem = subfaixbox->nmax*subfaixbox->m;
subfaixbox->elem = ( faixelem4_param_t *)malloc( numOfelem*sizeof(faixelem4_param_t));
if( faix->version == 2)
subfaixbox->aux = ( Byte4_t *)malloc( numOfelem*sizeof(Byte4_t));
for( i=0; i<numOfelem; i++){
subfaixbox->elem[i].off = fetch_DBox4bytebigendian( box, (pos+=4)-4);
subfaixbox->elem[i].len = fetch_DBox4bytebigendian( box, (pos+=4)-4);
if( faix->version == 2)
subfaixbox->aux[i] = fetch_DBox4bytebigendian( box, (pos+=4)-4);
}
}
return faix;
}