From a432811b344d8cda8e82bb66e0ed8679efb304a1 Mon Sep 17 00:00:00 2001 From: fruchti Date: Mon, 21 Oct 2019 13:39:19 +0200 Subject: [PATCH] Refactor, allow MP3s as input files Adds dependency on exiftool --- transcode.sh | 252 ++++++++++++++++++++++++++++++++------------------- 1 file changed, 161 insertions(+), 91 deletions(-) diff --git a/transcode.sh b/transcode.sh index f39f186..3846014 100644 --- a/transcode.sh +++ b/transcode.sh @@ -1,106 +1,176 @@ -#!/bin/sh +#!/bin/bash -output_owner=fruchti:data -lockfile=/tmp/music-transcode.lock +output_owner= +input_directory=/data/music -if [ -f "$lockfile" ] ; then +tmp_directory=/data/tmp +lock_file=/tmp/music-transcode.lock + +function die() +{ + printf '%s\n' "$1" >&2 + exit "${2-1}" +} + +if [ -f "$lock_file" ] ; then echo "Another instance is already running. Exiting." echo "If you are certain this is the only instance, you can delete the lock file $lockfile" exit else - touch "$lockfile" + touch "$lock_file" || die "Could not create lock file." fi -tmpdir=/data/tmp - -if [ ! -d "$tmpdir" ] ; then - mkdir -p "$tmpdir" +if [ ! -d "$tmp_directory" ] ; then + mkdir -p "$tmp_directory" || die "Could not create temporary directory \"$tmp_directory\"." fi +function mp3() +{ + output_directory="/data/mp3" + + input_file="$1" + output_file="`echo "$input_file" | sed -E "s#^$input_directory(.+)\\.[a-z0-9]+\\$#$output_directory\\1.mp3#g"`" + + directory="`dirname "$output_file"`" + if [ ! -d "$directory" ] ; then + echo "New Directory: \"$directory\"" + mkdir -p "$directory" || die "Could not create directory \"$directory\"." + fi + + transcode=false + + if [ ! -f "$output_file" ] ; then + echo "New MP3: \"$output_file\"" + transcode=true + elif [ "$input_file" -nt "$output_file" ] ; then + echo "Input file is newer: \"$output_file\"" + transcode=true + fi + + if [ "$transcode" = true ] ; then + input_type="`file -b --mime-type "$input_file"`" + case "$input_type" in + audio/flac) + tmp_file="$tmp_directory/`basename "$output_file"`" + echo "Transcoding MP3..." + ffmpeg -hide_banner -loglevel fatal -i "$input_file" -y -b:a 320k -qscale:a 2 -id3v2_version 3 -f mp3 "$tmp_file" || die "Failed to transcode to \"$tmp_file\"." + mv -f "$tmp_file" "$output_file" || die "Could not move file to \"$output_file\"." + ;; + + audio/mpeg) + echo "Copying MP3..." + cp -f "$input_file" "$output_file" + ;; + + *) + die "Unsupported input type $input_type (\"$input_file\")" + ;; + esac + + if [ ! "$output_owner" = "" ] ; then + chown $output_owner "$output_file" || die "Could not change permissions on \"$output_file\"." + fi + fi +} + +function ogg_add_cover() +{ + ogg_file="$1" + cover_file="$2" + + tmp_metafile="$tmp_directory/metadata" + tmp_mdimg="$tmp_directory/image-with-header" + + cover_mime_type="`file -b --mime-type "$cover_file"`" + + description="" + vorbiscomment --list --raw "$ogg_file" > "$tmp_metafile" && \ + sed -i -e '/^metadata_block_picture/d' "$tmp_metafile" && \ + echo -n "" > "$tmp_mdimg" && \ + printf "0: %.8x" 3 | xxd -r -g0 >> "$tmp_mdimg" && \ + printf "0: %.8x" $(echo -n "$cover_mime_type" | wc -c) | xxd -r -g0 >> "$tmp_mdimg" && \ + echo -n "$cover_mime_type" >> "$tmp_mdimg" && \ + printf "0: %.8x" $(echo -n "$description" | wc -c) | xxd -r -g0 >> "$tmp_mdimg" && \ + echo -n "$description" >> "$tmp_mdimg" && \ + printf "0: %.8x" 0 | xxd -r -g0 >> "$tmp_mdimg" && \ + printf "0: %.8x" 0 | xxd -r -g0 >> "$tmp_mdimg" && \ + printf "0: %.8x" 0 | xxd -r -g0 >> "$tmp_mdimg" && \ + printf "0: %.8x" 0 | xxd -r -g0 >> "$tmp_mdimg" && \ + printf "0: %.8x" $(wc -c "$cover_file" | cut --delimiter=' ' --fields=1) | xxd -r -g0 >> "$tmp_mdimg" && \ + cat "$tmp_cover" >> "$tmp_mdimg" && \ + echo "metadata_block_picture=$(base64 --wrap=0 < "$tmp_mdimg")" >> "$tmp_metafile" && \ + vorbiscomment --write --raw --commentfile "$tmp_metafile" "$ogg_file" && \ + rm "$tmp_metafile" "$tmp_mdimg" +} + +function ogg() +{ + output_directory="/data/ogg" + + input_file="$1" + output_file="`echo "$input_file" | sed -E "s#^$input_directory(.+)\\.[a-z0-9]+\\$#$output_directory\\1.ogg#g"`" + + directory="`dirname "$output_file"`" + if [ ! -d "$directory" ] ; then + echo "New Directory: \"$directory\"" + mkdir -p "$directory" || die "Could not create directory \"$directory\"." + fi + + transcode=false + + if [ ! -f "$output_file" ] ; then + echo "New OGG: \"$output_file\"" + transcode=true + elif [ "$input_file" -nt "$output_file" ] ; then + echo "Input file is newer: \"$output_file\"" + transcode=true + fi + + if [ "$transcode" = true ] ; then + input_type="`file -b --mime-type "$input_file"`" + + tmp_ogg="$tmp_directory/`basename "$output_file"`" + tmp_cover="$tmp_directory/cover" + + case "$input_type" in + audio/flac) + echo "Transcoding OGG..." + ffmpeg -hide_banner -loglevel fatal -i "$input_file" -y -map a -qscale:a 6 -id3v2_version 3 -f ogg "$tmp_ogg" || die "Could not transcode to \"$tmp_ogg\"." + + echo "Adding OGG cover image..." + metaflac --export-picture-to="$tmp_cover" "$input_file" && \ + ogg_add_cover "$tmp_ogg" "$tmp_cover" || die "Could not add cover image to \"$tmp_ogg\"." + + mv -f "$tmp_ogg" "$output_file" || die "Could not move file to \"$output_file\"." + ;; + + audio/mpeg) + echo "Transcoding OGG..." + ffmpeg -hide_banner -loglevel fatal -i "$input_file" -y -map a -qscale:a 6 -id3v2_version 3 -f ogg "$tmp_ogg" || die "Could not transcode to \"$tmp_ogg\"." + + echo "Adding OGG cover image..." + exiftool -Picture -b "$input_file" > "$tmp_cover" && \ + ogg_add_cover "$tmp_ogg" "$tmp_cover" || die "Could not add cover image to \"$tmp_ogg\"." + + mv -f "$tmp_ogg" "$output_file" || die "Could not move file to \"$output_file\"." + ;; + + *) + die "Unsupported input type $input_type (\"$input_file\")" + ;; + esac + + if [ ! "$output_owner" = "" ] ; then + chown $output_owner "$output_file" || die "Could not change permissions on \"$output_file\"." + fi + fi +} + SAVEIFS=$IFS IFS=`echo -ne "\n\b"` -for flac in `find /data/music -name '*.flac' | sort`; do - # MP3 - - mp3=`echo "$flac" | sed -e 's/^\/data\/music/\/data\/mp3/' -e 's/.flac$/.mp3/'` - tmpmp3="$tmpdir/`basename "$mp3"`" - mp3dir=`dirname "$mp3"` - transcodemp3=false - - if [ ! -d "$mp3dir" ] ; then - echo "New Directory: \"$mp3dir\"" - mkdir -p "$mp3dir" - fi - - if [ ! -f "$mp3" ] ; then - echo "New MP3: \"$mp3\"" - transcodemp3=true - elif [ "$flac" -nt "$mp3" ] ; then - echo "FLAC is newer: \"$mp3\"" - transcodemp3=true - fi - - if [ "$transcodemp3" = true ] ; then - echo "Transcoding MP3..." - # ffmpeg -i "$flac" -y -b:a 320k -qscale:a 2 -f mp3 "$mp3" - ffmpeg -hide_banner -loglevel fatal -i "$flac" -y -b:a 320k -qscale:a 2 -id3v2_version 3 -f mp3 "$tmpmp3" && \ - mv -f "$tmpmp3" "$mp3" && \ - chown $output_owner "$mp3" - echo -e "Done.\n" - fi - - # OGG - - ogg=`echo "$flac" | sed -e 's/^\/data\/music/\/data\/ogg/' -e 's/.flac$/.ogg/'` - tmpogg="$tmpdir/`basename "$ogg"`" - tmpcover="$tmpdir/cover" - tmpmetafile="$tmpdir/metadata" - tmpmdimg="$tmpdir/image-with-header" - oggdir=`dirname "$ogg"` - transcodeogg=false - - if [ ! -d "$oggdir" ] ; then - echo "New Directory: \"$oggdir\"" - mkdir -p "$oggdir" - fi - - if [ ! -f "$ogg" ] ; then - echo "New OGG: \"$ogg\"" - transcodeogg=true - elif [ "$flac" -nt "$ogg" ] ; then - echo "FLAC is newer: \"$ogg\"" - transcodeogg=true - fi - - if [ "$transcodeogg" = true ] ; then - echo "Transcoding OGG..." - - ffmpeg -hide_banner -loglevel fatal -i "$flac" -y -map a -qscale:a 6 -id3v2_version 3 -f ogg "$tmpogg" && \ - mv -f "$tmpogg" "$ogg" && \ - metaflac --export-picture-to="$tmpcover" "$flac" && \ - covermimetype="image/png" && \ - covermimetype="`file -b --mime-type "$tmpcover"`" && \ - description="" && \ - vorbiscomment --list --raw "$ogg" > "$tmpmetafile" && \ - sed -i -e '/^metadata_block_picture/d' "$tmpmetafile" && \ - echo -n "" > "$tmpmdimg" && \ - printf "0: %.8x" 3 | xxd -r -g0 >> "$tmpmdimg" && \ - printf "0: %.8x" $(echo -n "$covermimetype" | wc -c) | xxd -r -g0 >> "$tmpmdimg" && \ - echo -n "$covermimetype" >> "$tmpmdimg" && \ - printf "0: %.8x" $(echo -n "$description" | wc -c) | xxd -r -g0 >> "$tmpmdimg" && \ - echo -n "$description" >> "$tmpmdimg" && \ - printf "0: %.8x" 0 | xxd -r -g0 >> "$tmpmdimg" && \ - printf "0: %.8x" 0 | xxd -r -g0 >> "$tmpmdimg" && \ - printf "0: %.8x" 0 | xxd -r -g0 >> "$tmpmdimg" && \ - printf "0: %.8x" 0 | xxd -r -g0 >> "$tmpmdimg" && \ - printf "0: %.8x" $(wc -c "$tmpcover" | cut --delimiter=' ' --fields=1) | xxd -r -g0 >> "$tmpmdimg" && \ - cat "$tmpcover" >> "$tmpmdimg" && \ - echo "metadata_block_picture=$(base64 --wrap=0 < "$tmpmdimg")" >> "$tmpmetafile" && \ - vorbiscomment --write --raw --commentfile "$tmpmetafile" "$ogg" && \ - chown $output_owner "$ogg" - - echo -e "Done.\n" - fi +for file in `find "$input_directory" -name '*.flac' -or -name '*.mp3' | sort`; do + mp3 "$file" + ogg "$file" done echo "Done Transcoding."