2020-02-23 07:31:15 +00:00
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#!/usr/bin/env sh
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# Description: Extract audio from multimedia files and convert to mp3
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#
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# Dependency: ffmpeg compiled with libmp3lame audio codec support
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#
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# Shell: POSIX compliant
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# Author: Arun Prakash Jana
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outdir=_mp3files
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handle_multimedia() {
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mime="${1}"
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file="${2}"
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case "${mime}" in
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audio/* | video/*)
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2020-02-23 09:53:39 +00:00
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ffmpeg -i "${file}" -vn -codec:a libmp3lame -q:a 2 "${outdir}/${file%.*}.mp3"
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2020-02-23 07:31:15 +00:00
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;;
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*)
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;;
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esac
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}
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2020-02-23 09:26:51 +00:00
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printf "Process 'a'll in directory or 'c'urrent? "
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read -r resp
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if [ "$resp" = "a" ]; then
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if ! [ -e "${outdir}" ]; then
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mkdir "${outdir}"
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2020-02-23 07:31:15 +00:00
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fi
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2020-02-23 09:26:51 +00:00
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for f in *; do
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if [ -f "${f}" ]; then
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mimestr="$( file --dereference --brief --mime-type -- "${f}" )"
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handle_multimedia "${mimestr}" "${f}"
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fi
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done
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elif [ "$resp" = "c" ] && [ -f "$1" ]; then
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ffmpeg -i "${1}" -vn -codec:a libmp3lame -q:a 2 "${1%.*}.mp3"
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fi
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