blob: f876e10104482efb1f7de4a3cb54f7685b3dd8a7 (
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#!/bin/sh
function usage {
echo 'Usage: jpegtran-rotate-lossless.sh <90|180|270> <file>'
exit 1
}
ROTATION=$1
FILE=$2
if [ $# -ne 2 ]; then
usage
fi
case $ROTATION in
90|180|270)
true ;;
*)
usage ;;
esac
jpegtran -rotate $ROTATION -trim -copy all $FILE > $FILE-rotate
if [ $? -ne 0 ]; then
echo 'jpegtran-rotate-lossless.sh: jpegtran failed'
exit 1
fi
mv $FILE-rotate $FILE
if [ $? -ne 0 ]; then
'jpegtran-rotate-lossless.sh: mv failed'
exit 1
fi
exit 0
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