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