Fix the length of song which download from Magnatune store.

mag-fix.sh

#!/bin/bash


# Fix the length of song which download from Magnatune store.
# mag-fix.sh by Phondanai Khanti
# Work with .ogg only!
# Require package: vorbis-tools
#
#    usage: mag-fix.sh /path/to/source.ogg
# For the whole directory example
#    use: find . -iname '*.ogg' -print0 | xargs -0 -n 1 fix-mag

set -e

min=`ogginfo "$1" | grep Play | awk '{print $3}' | cut -d":" -f 1 | sed 's/m//g'`
secs=`ogginfo "$1" | grep Play | awk '{print $3}' | cut -d":" -f 2 | sed 's/s//g'`
cut_point=`echo "$(( min*60 )) + $secs - 9"|bc`

echo Fixing "$1"
echo $all
t=`mktemp`

# The out put will appear in outer current directory
vcut "$1" "$t" /dev/null +$cut_point && mv "$t" ../"$1"