カラオケメーカー by VLC

gistfile1.sh

#!/bin/sh
set -e
set -x

case ${VLC} in
"")
    VLC=`which vlc`
    ;;
esac
test -x "${VLC}"

for f
do
    test -f "${f}" || continue
    case ${f##*/} in
    *.?|*.??|*.???|*.????) out=${f%.*};;
                        *) out=${f};;
    esac
    out=${out}_karaoke.wav

    "${VLC}" -I dummy "${f}" \
        --sout-transcode-acodec=s16l \
        --sout-transcode-afilter=karaoke \
        --sout-standard-access=file \
        --sout-standard-mux=wav \
        --sout-standard-dst="${out}" \
        --sout=#transcode:std \
        vlc://quit
done