Ticket #465: mp3length.sh

#!/bin/sh

# this script reports data about CBR/VBR MP3s
# 1/2007, aaron@lithic.org


while [ $# -gt 0 ];
do
       time=`nice mplayer -vc null -vo null -ao pcm:fast:file=/dev/null "$1" 2>&1 | tr '\r' '\n' | grep ^A: | tail -n 1 | sed 's/A: *[0-9.]* (\([0-9:.^ ]*\).*/\1/'`
       size=`du -b "$1" | sed 's/\([0-9]*\).*/\1/'`
       total=`bc -l <<< ${time//:/*60+}`
       kbps=`bc -l <<< "scale=2; ($size*8)/($total*1000)"`;

       echo -e "$time at $kbps Kbps\t$1";
       shift;
done