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cr2_memorymap.py
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cr2_memorymap.py
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#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Copyright © 2015-2018 Johann A. Briffa
#
# This file is part of CR2_Scripts.
#
# CR2_Scripts 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 3 of the License, or
# (at your option) any later version.
#
# CR2_Scripts 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 CR2_Scripts. If not, see <http:https://www.gnu.org/licenses/>.
import sys
import os
import argparse
sys.path.append(os.path.join(os.path.dirname(os.path.realpath(__file__)),'pyshared'))
import jbtiff
## main program
def main():
# interpret user options
parser = argparse.ArgumentParser()
parser.add_argument("-i", "--input", required=True,
help="input raw file to analyse")
args = parser.parse_args()
# read input raw file
tiff = jbtiff.tiff_file(open(args.input, 'rb'))
# display memory map
mmap = tiff.get_memorymap()
print "*** Memory Map ***"
next_offset = 0
for offset, length, description in sorted(mmap):
if offset > next_offset:
print "*%8d - %8d\t%8d" % (next_offset, offset-1, offset-next_offset)
print " %8d - %8d\t%8d\t%s" % (offset, offset+length-1, length, description)
next_offset = offset + length
print "*** END ***"
return
# main entry point
if __name__ == '__main__':
main()