byte_manager.h
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/*
* $Id$
*
* Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
* Copyright (c) 2002-2014, 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.
*/
#ifndef BYTE_MANAGER_H_
#define BYTE_MANAGER_H_
#include <stddef.h>
#include <stdint.h>
#include "openjpeg.h"
typedef uint8_t Byte_t;
typedef uint16_t Byte2_t;
typedef uint32_t Byte4_t;
typedef uint64_t Byte8_t;
Byte_t * fetch_bytes(int fd, OPJ_OFF_T offset, OPJ_SIZE_T size);
Byte_t fetch_1byte(int fd, OPJ_OFF_T offset);
Byte2_t fetch_2bytebigendian(int fd, OPJ_OFF_T offset);
Byte4_t fetch_4bytebigendian(int fd, OPJ_OFF_T offset);
Byte8_t fetch_8bytebigendian(int fd, OPJ_OFF_T offset);
Byte2_t big2(Byte_t *buf);
Byte4_t big4(Byte_t *buf);
Byte8_t big8(Byte_t *buf);
void modify_4Bytecode(Byte4_t code, Byte_t *stream);
OPJ_OFF_T get_filesize(int fd);
#endif /* !BYTE_MANAGER_H_ */
big8
Byte8_t big8(Byte_t *buf)
convert 8-byte big endian Byte codes to number
Definition byte_manager.c:153
big2
Byte2_t big2(Byte_t *buf)
convert 2-byte big endian Byte codes to number
Definition byte_manager.c:142
big4
Byte4_t big4(Byte_t *buf)
convert 4-byte big endian Byte codes to number
Definition byte_manager.c:147
modify_4Bytecode
void modify_4Bytecode(Byte4_t code, Byte_t *stream)
modify 4Byte code in a codestream
Definition byte_manager.c:159
fetch_bytes
Byte_t * fetch_bytes(int fd, OPJ_OFF_T offset, OPJ_SIZE_T size)
fetch bytes of data in file stream
Definition byte_manager.c:52
Byte2_t
uint16_t Byte2_t
Definition byte_manager.h:38
fetch_4bytebigendian
Byte4_t fetch_4bytebigendian(int fd, OPJ_OFF_T offset)
fetch a 4-byte big endian Byte codes in file stream
Definition byte_manager.c:109
fetch_1byte
Byte_t fetch_1byte(int fd, OPJ_OFF_T offset)
fetch a 1-byte Byte codes in file stream
Definition byte_manager.c:75
Byte8_t
uint64_t Byte8_t
Definition byte_manager.h:40
get_filesize
OPJ_OFF_T get_filesize(int fd)
Get file size.
Definition byte_manager.c:167
Byte4_t
uint32_t Byte4_t
Definition byte_manager.h:39
fetch_2bytebigendian
Byte2_t fetch_2bytebigendian(int fd, OPJ_OFF_T offset)
fetch a 2-byte big endian Byte codes in file stream
Definition byte_manager.c:93
Byte_t
uint8_t Byte_t
Definition byte_manager.h:37
fetch_8bytebigendian
Byte8_t fetch_8bytebigendian(int fd, OPJ_OFF_T offset)
fetch a 8-byte big endian Byte codes in file stream
Definition byte_manager.c:125
openjpeg.h
OPJ_OFF_T
int64_t OPJ_OFF_T
Definition openjpeg.h:136
OPJ_SIZE_T
size_t OPJ_SIZE_T
Definition openjpeg.h:139