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#!/bin/bash
#
# Date: 2009-12-16
# Author: Ole Kristian Lien
# License: GNU General Public License
#
# Check if the left and right channel is equal.
# if not equal, exit code 3..
# ext-format må fikses!! hmm
EXT=`echo "$1"|awk -F . '{print $NF}'`
NAME=`basename $1 .$EXT`
FORMAT=`./audio_format $1`
if [ -z "$1" ]; then
echo "Usage: $0 <video-file>"
exit 1
fi
echo " * Checking $1 for different audio channels:"
./audio_extract $1 0 60 # øke til feks 2?
./audio_split $NAME.$FORMAT
./audio_stats $NAME-left.wav &> $NAME-left.stat
./audio_stats $NAME-right.wav &> $NAME-right.stat
# find a better method to compare audio!
LEFT=`grep Mean $NAME-left.stat | md5sum`
RIGHT=`grep Mean $NAME-right.stat | md5sum`
if [ "$LEFT" == "$RIGHT" ]; then
echo " * Audio channels is equal!"
rm $NAME.$FORMAT $NAME-left* $NAME-right*
exit
else
echo " * Audio channels is not equal!"
rm $NAME.$FORMAT $NAME-left* $NAME-right*
exit 3
fi
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