#!/bin/sh
 
# Written by Nick Welch <nick@incise.org>.  Author disclaims copyright.
 
from="$1"
to=`basename "$from" | perl -pe 'chomp; s/[^\w-\.]/_/g'`
if ! echo "$to" | egrep -q '\.mpe?g$'
then
    to="$to".mpg
fi
if [ -f "$to" ]
then
    echo "file already exists: $to"
    rm -i "$to"
fi
echo '********************************'
echo
echo "transcoding: $from"
echo "         to: $to"
echo "             (in current directory: "`pwd`")"
echo
echo '********************************'
sleep 3
if mencoder "$from" -o "$to".encoding... \
    -oac mp3lame \
    -lameopts abr:br=96 \
    -af resample=44100,volnorm \
    -srate 44100 \
    -ofps 17 \
    -ovc lavc \
    -lavcopts threads=2:vcodec=mpeg4:mbd=2:cbp:trell:vbitrate=256 \
    -vf scale=384:256 \
    -ffourcc XVID
then
    mv "$to".encoding... "$to"
    echo "done with $to"
else
    rm -f "$to".encoding...
    exit 1
fi