Hi all,
First, congratulations to all developers for making such a nice piece of
software. It brought a lot of happy hours to this home ;-)
I'd like to contribute a UNIX shell script that converts .kar file to .mpg. I
know, it's not much, but still... Maybe someone finds it useful.
Regards,
Zoltan
#! /bin/sh
# Sanity-check parameters.
for kar in "$@"; do
if [ `basename "$kar" .kar` == "$kar" ]; then
echo "$kar" does not end in .kar.
exit 1
fi
if [ ! -f "$kar" ]; then
echo "$kar" does not exist.
exit 1
fi
wav=`dirname "$kar"`/`basename "$kar" .kar`.wav
if [ ! -f "$wav" ]; then
#echo "WAV file $wav does not exist, generating it ..."
timidity $kar -Ow1S -s 44100 -o $wav 1>/dev/null
fi
done
for kar in "$@"; do
# Get temporary and output filenames, based on the input filename.
wav=`dirname "$kar"`/`basename "$kar" .kar`.wav
ppm=`dirname "$kar"`/`basename "$kar" .kar`.ppm
mpa=`dirname "$kar"`/`basename "$kar" .kar`.mpa
mpv=`dirname "$kar"`/`basename "$kar" .kar`.mpv
mpg=`dirname "$kar"`/`basename "$kar" .kar`.mpg
# Use PyKaraoke to extract the frames. We render into a slightly
# larger window than 288x192, to give room for a border and allow
# for TV overscan.
# PAL: 24000:1001 fps (23.976), NTSC: 30000:1001 fps (29.97)
pykar --dump="$ppm" --dump-fps=23.976 --num-channels=2 --width=320
--height=240 "$kar" || exit
# Scale the video up to the DVD-sized screen, and convert it to mpeg.
ppmtoy4m -v0 -F 24000:1001 "$ppm" | y4mscaler -v0 -O preset=dvd | mpeg2enc
-M2 -v0 -f8 -b7500 -o "$mpv" || exit
# Convert the audio to mpeg.
mp2enc -v0 -b224 -r44100 -s -o "$mpa" <"$wav" || exit
# Multiplex the audio and the video together.
mplex -v0 -f8 "$mpa" "$mpv" -o "$mpg" || exit
# Clean up.
rm -f "$ppm" "$mpa" "$mpv" "$wav"
done
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