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#!/usr/bin/env python
#******************************************************************************
# $Id: gdalchksum.py 33790 2016-03-26 12:42:12Z goatbar $
#
# Project: GDAL
# Purpose: Application to checksum a GDAL image file.
# Author: Frank Warmerdam, warmerdam@pobox.com
#
#******************************************************************************
# Copyright (c) 2003, Frank Warmerdam <warmerdam@pobox.com>
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
# DEALINGS IN THE SOFTWARE.
#******************************************************************************
import sys
from osgeo import gdal
def Usage():
print('Usage: gdalchksum.py [-b band] [-srcwin xoff yoff xsize ysize] file')
sys.exit(1)
# =============================================================================
# Mainline
# =============================================================================
srcwin = None
bands = []
filename = None
gdal.AllRegister()
argv = gdal.GeneralCmdLineProcessor( sys.argv )
if argv is None:
sys.exit( 0 )
# Parse command line arguments.
i = 1
while i < len(argv):
arg = argv[i]
if arg == '-b':
i = i + 1
bands.append( int(argv[i]) )
elif arg == '-srcwin':
srcwin = [int(argv[i+1]),int(argv[i+2]),
int(argv[i+3]),int(argv[i+3]) ]
i = i + 4
elif filename is None:
filename = argv[i]
else:
Usage()
i = i + 1
if filename is None:
Usage()
# Open source file
ds = gdal.Open( filename )
if ds is None:
print('Unable to open %s' % filename)
sys.exit(1)
# Default values
if srcwin is None:
srcwin = [ 0, 0, ds.RasterXSize, ds.RasterYSize ]
if len(bands) == 0:
bands = list(range(1,(ds.RasterCount+1)))
# Generate checksums
for band_num in bands:
oBand = ds.GetRasterBand( band_num )
result = oBand.Checksum( srcwin[0], srcwin[1], srcwin[2], srcwin[3] )
print(result)
ds = None
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