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/*
File: file_ari.c
Copyright (C) 2014 Christophe GRENIER <grenier@cgsecurity.org>
This software is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write the Free Software Foundation, Inc., 51
Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#if !defined(SINGLE_FORMAT) || defined(SINGLE_FORMAT_ari)
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#ifdef HAVE_STRING_H
#include <string.h>
#endif
#include <stdio.h>
#include "types.h"
#include "filegen.h"
#include "common.h"
/*@ requires valid_register_header_check(file_stat); */
static void register_header_check_ari(file_stat_t *file_stat);
const file_hint_t file_hint_ari= {
.extension="ari",
.description="ARRI Raw Video",
.max_filesize=PHOTOREC_MAX_FILE_SIZE,
.recover=1,
.enable_by_default=1,
.register_header_check=®ister_header_check_ari
};
struct arri_header
{
uint32_t magic;
uint32_t endian;
uint32_t header_size;
uint32_t version; /* ie. 3 */
uint32_t unk1;
uint32_t width;
uint32_t height;
uint32_t cam_hwr_rev;
} __attribute__ ((gcc_struct, __packed__));
/*@
@ requires buffer_size > sizeof(struct arri_header);
@ requires separation: \separated(&file_hint_ari, buffer+(..), file_recovery, file_recovery_new);
@ requires valid_header_check_param(buffer, buffer_size, safe_header_only, file_recovery, file_recovery_new);
@ ensures valid_header_check_result(\result, file_recovery_new);
@ assigns *file_recovery_new;
@*/
static int header_check_ari(const unsigned char *buffer, const unsigned int buffer_size, const unsigned int safe_header_only, const file_recovery_t *file_recovery, file_recovery_t *file_recovery_new)
{
const struct arri_header *hdr=(const struct arri_header *)buffer;
if(le32(hdr->version)==0 ||
le32(hdr->width)==0 ||
le32(hdr->height)==0)
return 0;
reset_file_recovery(file_recovery_new);
file_recovery_new->extension=file_hint_ari.extension;
file_recovery_new->min_filesize=4096;
return 1;
}
static void register_header_check_ari(file_stat_t *file_stat)
{
static const unsigned char ari_header[12]= {
'A' , 'R' , 'R' , 'I' , 0x12, 0x34, 0x56, 0x78,
0x00, 0x10, 0x00, 0x00};
register_header_check(0, ari_header, sizeof(ari_header), &header_check_ari, file_stat);
}
#endif
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