Refactor, allow MP3s as input files
Adds dependency on exiftool
This commit is contained in:
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23666cf899
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252
transcode.sh
252
transcode.sh
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@ -1,106 +1,176 @@
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#!/bin/sh
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#!/bin/bash
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output_owner=fruchti:data
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output_owner=
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lockfile=/tmp/music-transcode.lock
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input_directory=/data/music
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if [ -f "$lockfile" ] ; then
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tmp_directory=/data/tmp
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lock_file=/tmp/music-transcode.lock
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function die()
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{
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printf '%s\n' "$1" >&2
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exit "${2-1}"
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}
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if [ -f "$lock_file" ] ; then
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echo "Another instance is already running. Exiting."
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echo "Another instance is already running. Exiting."
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echo "If you are certain this is the only instance, you can delete the lock file $lockfile"
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echo "If you are certain this is the only instance, you can delete the lock file $lockfile"
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exit
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exit
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else
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else
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touch "$lockfile"
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touch "$lock_file" || die "Could not create lock file."
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fi
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fi
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tmpdir=/data/tmp
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if [ ! -d "$tmp_directory" ] ; then
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mkdir -p "$tmp_directory" || die "Could not create temporary directory \"$tmp_directory\"."
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if [ ! -d "$tmpdir" ] ; then
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mkdir -p "$tmpdir"
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fi
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fi
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function mp3()
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{
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output_directory="/data/mp3"
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input_file="$1"
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output_file="`echo "$input_file" | sed -E "s#^$input_directory(.+)\\.[a-z0-9]+\\$#$output_directory\\1.mp3#g"`"
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directory="`dirname "$output_file"`"
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if [ ! -d "$directory" ] ; then
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echo "New Directory: \"$directory\""
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mkdir -p "$directory" || die "Could not create directory \"$directory\"."
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fi
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transcode=false
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if [ ! -f "$output_file" ] ; then
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echo "New MP3: \"$output_file\""
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transcode=true
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elif [ "$input_file" -nt "$output_file" ] ; then
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echo "Input file is newer: \"$output_file\""
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transcode=true
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fi
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if [ "$transcode" = true ] ; then
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input_type="`file -b --mime-type "$input_file"`"
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case "$input_type" in
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audio/flac)
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tmp_file="$tmp_directory/`basename "$output_file"`"
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echo "Transcoding MP3..."
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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 \"$tmp_file\"."
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mv -f "$tmp_file" "$output_file" || die "Could not move file to \"$output_file\"."
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;;
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audio/mpeg)
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echo "Copying MP3..."
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cp -f "$input_file" "$output_file"
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;;
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*)
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die "Unsupported input type $input_type (\"$input_file\")"
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;;
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esac
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if [ ! "$output_owner" = "" ] ; then
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chown $output_owner "$output_file" || die "Could not change permissions on \"$output_file\"."
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fi
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fi
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}
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function ogg_add_cover()
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{
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ogg_file="$1"
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cover_file="$2"
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tmp_metafile="$tmp_directory/metadata"
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tmp_mdimg="$tmp_directory/image-with-header"
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cover_mime_type="`file -b --mime-type "$cover_file"`"
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description=""
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vorbiscomment --list --raw "$ogg_file" > "$tmp_metafile" && \
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sed -i -e '/^metadata_block_picture/d' "$tmp_metafile" && \
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echo -n "" > "$tmp_mdimg" && \
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printf "0: %.8x" 3 | xxd -r -g0 >> "$tmp_mdimg" && \
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printf "0: %.8x" $(echo -n "$cover_mime_type" | wc -c) | xxd -r -g0 >> "$tmp_mdimg" && \
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echo -n "$cover_mime_type" >> "$tmp_mdimg" && \
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printf "0: %.8x" $(echo -n "$description" | wc -c) | xxd -r -g0 >> "$tmp_mdimg" && \
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echo -n "$description" >> "$tmp_mdimg" && \
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printf "0: %.8x" 0 | xxd -r -g0 >> "$tmp_mdimg" && \
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printf "0: %.8x" 0 | xxd -r -g0 >> "$tmp_mdimg" && \
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printf "0: %.8x" 0 | xxd -r -g0 >> "$tmp_mdimg" && \
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printf "0: %.8x" 0 | xxd -r -g0 >> "$tmp_mdimg" && \
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printf "0: %.8x" $(wc -c "$cover_file" | cut --delimiter=' ' --fields=1) | xxd -r -g0 >> "$tmp_mdimg" && \
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cat "$tmp_cover" >> "$tmp_mdimg" && \
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echo "metadata_block_picture=$(base64 --wrap=0 < "$tmp_mdimg")" >> "$tmp_metafile" && \
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vorbiscomment --write --raw --commentfile "$tmp_metafile" "$ogg_file" && \
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rm "$tmp_metafile" "$tmp_mdimg"
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}
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function ogg()
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{
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output_directory="/data/ogg"
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input_file="$1"
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output_file="`echo "$input_file" | sed -E "s#^$input_directory(.+)\\.[a-z0-9]+\\$#$output_directory\\1.ogg#g"`"
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directory="`dirname "$output_file"`"
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if [ ! -d "$directory" ] ; then
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echo "New Directory: \"$directory\""
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mkdir -p "$directory" || die "Could not create directory \"$directory\"."
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fi
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transcode=false
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if [ ! -f "$output_file" ] ; then
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echo "New OGG: \"$output_file\""
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transcode=true
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elif [ "$input_file" -nt "$output_file" ] ; then
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echo "Input file is newer: \"$output_file\""
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transcode=true
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fi
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if [ "$transcode" = true ] ; then
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input_type="`file -b --mime-type "$input_file"`"
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tmp_ogg="$tmp_directory/`basename "$output_file"`"
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tmp_cover="$tmp_directory/cover"
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case "$input_type" in
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audio/flac)
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echo "Transcoding OGG..."
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ffmpeg -hide_banner -loglevel fatal -i "$input_file" -y -map a -qscale:a 6 -id3v2_version 3 -f ogg "$tmp_ogg" || die "Could not transcode to \"$tmp_ogg\"."
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echo "Adding OGG cover image..."
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metaflac --export-picture-to="$tmp_cover" "$input_file" && \
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ogg_add_cover "$tmp_ogg" "$tmp_cover" || die "Could not add cover image to \"$tmp_ogg\"."
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mv -f "$tmp_ogg" "$output_file" || die "Could not move file to \"$output_file\"."
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;;
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audio/mpeg)
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echo "Transcoding OGG..."
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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 \"$tmp_ogg\"."
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echo "Adding OGG cover image..."
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exiftool -Picture -b "$input_file" > "$tmp_cover" && \
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ogg_add_cover "$tmp_ogg" "$tmp_cover" || die "Could not add cover image to \"$tmp_ogg\"."
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mv -f "$tmp_ogg" "$output_file" || die "Could not move file to \"$output_file\"."
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;;
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*)
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die "Unsupported input type $input_type (\"$input_file\")"
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;;
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esac
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if [ ! "$output_owner" = "" ] ; then
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chown $output_owner "$output_file" || die "Could not change permissions on \"$output_file\"."
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fi
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fi
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}
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SAVEIFS=$IFS
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SAVEIFS=$IFS
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IFS=`echo -ne "\n\b"`
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IFS=`echo -ne "\n\b"`
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for flac in `find /data/music -name '*.flac' | sort`; do
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for file in `find "$input_directory" -name '*.flac' -or -name '*.mp3' | sort`; do
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# MP3
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mp3 "$file"
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ogg "$file"
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mp3=`echo "$flac" | sed -e 's/^\/data\/music/\/data\/mp3/' -e 's/.flac$/.mp3/'`
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tmpmp3="$tmpdir/`basename "$mp3"`"
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mp3dir=`dirname "$mp3"`
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transcodemp3=false
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if [ ! -d "$mp3dir" ] ; then
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echo "New Directory: \"$mp3dir\""
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mkdir -p "$mp3dir"
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fi
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if [ ! -f "$mp3" ] ; then
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echo "New MP3: \"$mp3\""
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transcodemp3=true
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elif [ "$flac" -nt "$mp3" ] ; then
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echo "FLAC is newer: \"$mp3\""
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transcodemp3=true
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fi
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if [ "$transcodemp3" = true ] ; then
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echo "Transcoding MP3..."
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# ffmpeg -i "$flac" -y -b:a 320k -qscale:a 2 -f mp3 "$mp3"
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ffmpeg -hide_banner -loglevel fatal -i "$flac" -y -b:a 320k -qscale:a 2 -id3v2_version 3 -f mp3 "$tmpmp3" && \
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mv -f "$tmpmp3" "$mp3" && \
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chown $output_owner "$mp3"
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echo -e "Done.\n"
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fi
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# OGG
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ogg=`echo "$flac" | sed -e 's/^\/data\/music/\/data\/ogg/' -e 's/.flac$/.ogg/'`
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tmpogg="$tmpdir/`basename "$ogg"`"
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tmpcover="$tmpdir/cover"
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tmpmetafile="$tmpdir/metadata"
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tmpmdimg="$tmpdir/image-with-header"
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oggdir=`dirname "$ogg"`
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transcodeogg=false
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if [ ! -d "$oggdir" ] ; then
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echo "New Directory: \"$oggdir\""
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mkdir -p "$oggdir"
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fi
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if [ ! -f "$ogg" ] ; then
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echo "New OGG: \"$ogg\""
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transcodeogg=true
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elif [ "$flac" -nt "$ogg" ] ; then
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echo "FLAC is newer: \"$ogg\""
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transcodeogg=true
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fi
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if [ "$transcodeogg" = true ] ; then
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echo "Transcoding OGG..."
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ffmpeg -hide_banner -loglevel fatal -i "$flac" -y -map a -qscale:a 6 -id3v2_version 3 -f ogg "$tmpogg" && \
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mv -f "$tmpogg" "$ogg" && \
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metaflac --export-picture-to="$tmpcover" "$flac" && \
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covermimetype="image/png" && \
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covermimetype="`file -b --mime-type "$tmpcover"`" && \
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description="" && \
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vorbiscomment --list --raw "$ogg" > "$tmpmetafile" && \
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sed -i -e '/^metadata_block_picture/d' "$tmpmetafile" && \
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echo -n "" > "$tmpmdimg" && \
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printf "0: %.8x" 3 | xxd -r -g0 >> "$tmpmdimg" && \
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printf "0: %.8x" $(echo -n "$covermimetype" | wc -c) | xxd -r -g0 >> "$tmpmdimg" && \
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echo -n "$covermimetype" >> "$tmpmdimg" && \
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printf "0: %.8x" $(echo -n "$description" | wc -c) | xxd -r -g0 >> "$tmpmdimg" && \
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echo -n "$description" >> "$tmpmdimg" && \
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printf "0: %.8x" 0 | xxd -r -g0 >> "$tmpmdimg" && \
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printf "0: %.8x" 0 | xxd -r -g0 >> "$tmpmdimg" && \
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printf "0: %.8x" 0 | xxd -r -g0 >> "$tmpmdimg" && \
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printf "0: %.8x" 0 | xxd -r -g0 >> "$tmpmdimg" && \
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printf "0: %.8x" $(wc -c "$tmpcover" | cut --delimiter=' ' --fields=1) | xxd -r -g0 >> "$tmpmdimg" && \
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cat "$tmpcover" >> "$tmpmdimg" && \
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echo "metadata_block_picture=$(base64 --wrap=0 < "$tmpmdimg")" >> "$tmpmetafile" && \
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vorbiscomment --write --raw --commentfile "$tmpmetafile" "$ogg" && \
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chown $output_owner "$ogg"
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echo -e "Done.\n"
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fi
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done
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done
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echo "Done Transcoding."
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echo "Done Transcoding."
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