jiti-meet/resources/encode-sound.sh

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#!/bin/bash
usage() {
echo "Usage: $0 [--mp3] [--opus] [--stereo] <input file ...>"
exit 1
}
for arg in "$@"; do
case "$arg" in
--stereo)
STEREO=true
shift
;;
--mp3)
MP3=true
shift
;;
--opus)
OPUS=true
shift
;;
esac
done
if [ $# -lt 1 ] ;then
usage
fi
if [ "$MP3" != "true" ] ;then
if [ "$OPUS" != "true" ] ;then
echo "At least one of --mp3 or --opus is required"
usage
fi
fi
echo "STEREO=$STEREO MP3=$MP3 OPUS=$OPUS"
AC1="-ac 1"
if [ "$STEREO" = "true" ] ;then
AC1=""
fi
for i in "$@" ;do
if [ "$MP3" = "true" ] ;then
ffmpeg -i "$i" -codec:a libmp3lame -qscale:a 9 -map_metadata -1 $AC1 "${i%.*}.mp3"
fi
if [ "$OPUS" = "true" ] ;then
ffmpeg -i "$i" -c:a libopus -b:a 30k -vbr on -compression_level 10 -map_metadata -1 $AC1 "${i%.*}.opus"
fi
done