openjpeg/applications/jpip/libopenjpip/codestream_manager.c

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/*
* $Id: codestream_manager.c 44 2011-02-15 12:32:29Z 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 "codestream_manager.h"
#include "opj_inttypes.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 */
codestream_param_t set_codestream( int fd, OPJ_OFF_T offset, OPJ_SIZE_T length)
{
codestream_param_t cs;
cs.fd = fd;
cs.offset = offset;
cs.length = length;
return cs;
}
Byte_t * fetch_codestreambytes( codestream_param_t *cs, OPJ_OFF_T offset, OPJ_SIZE_T size)
{
return fetch_bytes( cs->fd, cs->offset+offset, size);
}
Byte_t fetch_codestream1byte( codestream_param_t *cs, OPJ_OFF_T offset)
{
return fetch_1byte( cs->fd, cs->offset+offset);
}
Byte2_t fetch_codestream2bytebigendian( codestream_param_t *cs, OPJ_OFF_T offset)
{
return fetch_2bytebigendian( cs->fd, cs->offset+offset);
}
Byte4_t fetch_codestream4bytebigendian( codestream_param_t *cs, OPJ_OFF_T offset)
{
return fetch_4bytebigendian( cs->fd, cs->offset+offset);
}
void print_codestream( codestream_param_t cs)
{
fprintf( logstream, "codestream info:\n"
"\t fd: %d\n"
"\t offset: %#" PRIx64 "\n"
"\t length: %#" PRIx64 "\n", cs.fd, cs.offset, cs.length);
}