boxheader_param_t * gene_boxheader( int fd, OPJ_OFF_T offset)
{
Byte8_t boxlen;
Byte_t headlen;
char *boxtype;
boxheader_param_t *boxheader;
boxlen = fetch_4bytebigendian( fd, offset);
boxtype = (char *)fetch_bytes( fd, offset+4, 4);
headlen = 8;
if( boxlen == 1){ /* read XLBox */
boxlen = fetch_8bytebigendian( fd, offset+8);
headlen = 16;
}
boxheader = (boxheader_param_t *)malloc( sizeof( boxheader_param_t));
boxheader->headlen = headlen;
boxheader->length = boxlen;
strncpy( boxheader->type, boxtype, 4);
boxheader->next = NULL;
free( boxtype);
return boxheader;
}
Byte8_t fetch_DBox8bytebigendian( box_param_t *box, OPJ_OFF_T offset)
{
return fetch_8bytebigendian( box->fd, get_DBoxoff( box)+offset);
}
