From cb16fc17693be6f9d1108cae15e7f7f87726b487 Mon Sep 17 00:00:00 2001
From: Vincent Riquer <vincent+gitorious@riquer.fr>
Date: Mon, 27 Feb 2012 00:12:33 +0100
Subject: [PATCH] add historical "transogg" script

---
 transogg | 493 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 493 insertions(+)
 create mode 100755 transogg

diff --git a/transogg b/transogg
new file mode 100755
index 0000000..4a44dec
--- /dev/null
+++ b/transogg
@@ -0,0 +1,493 @@
+#!/bin/bash
+
+source /etc/transogg.conf
+
+[ ! -d "$TEMPDIR" ] && mkdir -p "$TEMPDIR"
+
+# log errors
+exec 2> $TEMPDIR/debug-$$.log
+
+set -E
+
+MyPID=$$
+
+tty=$(who -m|awk '{print $2}')
+
+cleanup() {
+	pkill -t $tty find||true
+	unset files
+	export killed=1
+}
+
+export -f cleanup
+
+usage() {
+	cat <<-EOF
+	$0 [-D] [-n <instances>] [-F] [-s <source directory>] [-t <target directory>]
+
+	    -n <instances>: run <instances> simultaneous processes (overrides config
+	                    file)
+	    -l <max load>: Don't start transcoding if the load average reaches <max
+	                   load>
+	    -T <time>: time before raising instance number again after reaching max
+	               load
+	    -F: ignore any existing timestamp file (useful if you change target
+	        quality)
+	    -D: increase debug level (produces potentially huge log files in
+	        $TEMPDIR)
+	    -c <conf-file>: Alternate configuration file
+	EOF
+}
+
+trap cleanup 1 2 15 EXIT
+
+declare -i DEBUG=0
+
+while getopts 'l:FhiDs:t:T:c:' opt
+do
+	case $opt in
+		s) ORIGDIR=$OPTARG ;;
+		t) DESTDIR=$OPTARG ;;
+		l) TARGETLOAD=$OPTARG
+		;;
+		F) rm -f "$TIMESTAMP"
+		;;
+		h) usage ; exit 0 ;;
+		T) LOADTIME=$OPTARG ;;
+		D) DEBUG+=1; set -x ;;
+		c) source "$OPTARG" ;;
+		*) exit 127
+		;;
+	esac
+done
+
+(( DEBUG >= 2 )) && set -v
+
+COLUMNS=$(tput cols)
+LINES=$(tput lines)
+trap 'COLUMNS=$(tput cols) LINES=$(tput lines)' WINCH
+declare -a children
+declare -i filenum=0
+declare -i lastid=-1
+FIFO=/tmp/transogg-$UID-$MyPID-status
+IDFIFO=/tmp/transogg-$UID-$MyPID-finished
+shopt -s extglob
+declare -i lastINSTchange=0
+((instances = TARGETLOAD / 2))
+
+[ -d "$TEMPDIR" ] \
+		|| mkdir -p "$TEMPDIR" \
+		|| exit 1
+
+[ -d "$DESTDIR" ] \
+		|| mkdir -p "$DESTDIR" \
+		|| exit 1
+
+[ -f "$TIMESTAMP" ] \
+		|| touch -t 197001010100 "$TIMESTAMP"
+
+case $FORMAT in
+	ogg)
+		function encode {
+			nice -n $NICENESS ionice -c3 \
+				oggenc \
+				-Q \
+				-a "${artist:-?}" \
+				-l "${album:-?}" \
+				-N "${tracknum}${tracktotal/#//}" \
+				-t "${title:-$(basename "$1")}" \
+				-q $QUALITY \
+				-d "$year" \
+				-G "$genre" \
+				-c DISCNUMBER="$disc" \
+				-o "$2" \
+				$tmpfile \
+				2> /dev/null
+		}
+	;;
+	mp3)
+		function encode {
+			nice -n $NICENESS ionice -c3 \
+				lame \
+				--quiet \
+				--ta "${artist:-?}" \
+				--tl "${album:-?}" \
+				--tn "${tracknum}${tracktotal/#//}" \
+				--tt "${title:-$(basename "$1")}" \
+				-v \
+				--abr $BITRATE \
+				--ty "$year" \
+				--tg "$genre" \
+				$tmpfile \
+				"$2" \
+				2> /dev/null
+		}
+	;;
+	*)
+		exit 127
+	;;
+esac
+
+gettag() {
+	echo -e "$1" \
+		 | egrep -i '^'${2}= \
+		 | cut -d = -f 2
+}
+
+mpc_info() {
+	infos=$(ionice -c3 \
+			 strings "$1" \
+			 | egrep -A1 'artist|album|title|track|year|genre')
+	title=$(echo -e "$infos"|sed -n /title/I {n;p})
+	artist=$(echo -e "$infos"|sed -n /artist/I {n;p})
+	track=$(echo -e "$infos"|sed -n /track/I {n;p})
+	album=$(echo -e "$infos"|sed -n /album/I {n;p})
+	year=$(echo -e "$infos"|sed -n /year/I {n;p})
+	genre=$(echo -e "$infos"|sed -n /genre/I {n;p})
+	unset infos
+}
+
+flac_info() {
+	infos=$(ionice -c3 \
+			 metaflac \
+			 --show-tag=TITLE \
+			 --show-tag=ARTIST \
+			 --show-tag=ALBUM \
+			 --show-tag=TRACKNUMBER \
+			 --show-tag=TRACKTOTAL \
+			 --show-tag=DATE \
+			 --show-tag=DISCNUMBER \
+			 --show-tag=GENRE \
+			 "$1")
+
+	artist=$(gettag "$infos" artist)
+
+	album=$(gettag "$infos" album)
+
+	title=$(gettag "$infos" title)
+
+	tracknum=$(gettag "$infos" tracknumber)
+
+	tracktotal=$(gettag "$infos" tracktotal)
+
+	year=$(gettag "$infos" date)
+
+	disc=$(gettag "$infos" discnumber)
+
+	genre=$(gettag "$infos" genre)
+
+	unset infos
+}
+
+function vorbis_info {
+	infos=$(ionice -c3 ogginfo "$1" | sed 's/^\t//')
+
+    artist=$(gettag "$infos" artist)
+
+    album=$(gettag "$infos" album)
+    
+    title=$(gettag "$infos" title)
+    
+    tracknum=$(gettag "$infos" tracknumber)
+
+	tracktotal=$(gettag "$infos" tracktotal)
+
+	year=$(gettag "$infos" date)
+
+	disc=$(gettag "$infos" discnumber)
+
+	genre=$(gettag "$infos" genre)
+
+	unset infos
+}
+
+function mp3_info {
+	infos=$(ionice -c3 mp3info -p 'artist=%a
+album=%l
+title=%t
+tracknum=%n
+year=%y
+genre=%g' "$1" | iconv -f $ID3CHARSET -t utf-8//TRANSLIT)
+    artist=$(gettag "$infos" artist|iconv -t utf-8)
+    album=$(gettag "$infos" album|iconv -t utf-8)
+    title=$(gettag "$infos" title|iconv -t utf-8)
+    tracknum=$(gettag "$infos" tracknum|iconv -t utf-8)
+	year=$(gettag "$infos" year)
+	genre=$(gettag "$infos" genre)
+
+	unset infos
+}
+
+function get_info {
+    case "$(file "$1")" in
+				   *Musepack*)
+					   mpc_info "$1"
+					   ;;
+				   *MPEG*)
+					   mp3_info "$1"
+					   ;;
+				   *MP3*)
+					   mp3_info "$1"
+					   ;;
+				   *Vorbis*)
+					   vorbis_info "$1"
+					   ;;
+				   *FLAC*)
+					   flac_info "$1"
+					   ;;
+				   *)
+					   :
+					   ;;
+    esac
+}
+
+function theRealSox {
+	echo "$1: $2 → $3" >&2
+    get_info "$2" 2>/dev/null
+    tmpfile="$TEMPDIR"/transogg-$UID-$(date +%Y%m%d%H%M%S%N).wav
+    nice -n $NICENESS ionice -c3 \
+			sox \
+			--norm \
+			--single-threaded "$2" \
+			-r ${RATE:=44100} \
+			-c ${CHANNELS:=2} \
+			--temp $TEMPDIR \
+			$tmpfile \
+			> /dev/null || true
+    encode "$2" "$3" || true
+	rm -f $tmpfile
+    unset artist album tracknum tracktotal title year genre tmpfile
+	until echo $1 >> $IDFIFO
+	do
+		sleep 1
+	done
+}
+
+function CleanIdFile {
+	while read curid
+	do
+		if (( lastid + 1 == $curid ))
+		then
+			if [ -n "${files[$curid]}" ]
+			then
+				touch -r "$ORIGDIR/${files[$curid]}" "$TIMESTAMP"
+			fi
+			sed -n -i "/^$curid$/d;p" $IDFIFO
+			lastid=$curid
+		fi
+		unset children[$curid]
+		echo -n '' > $FIFO
+		for processInd in ${!children[@]}
+		do
+			echo ${children[$processInd]} >> $FIFO
+		done
+		echo $filenum $instances $TARGETLOAD $message
+	done < <(sort -n $IDFIFO)
+}
+
+function MySox {
+	load=$(sed 's/^\([0-9]\+\)[. ].*/\1/' /proc/loadavg)
+	if (( load > TARGETLOAD && instances > 1 && $(date +%s) - lastINSTchange >= LOADTIME))
+	then
+		((instances -= 1))
+		if ((instances < 1))
+		then
+			instances=1
+		fi
+		lastINSTchange=$(date +%s)
+		echo $filenum $instances $TARGETLOAD $message
+	elif (( load < TARGETLOAD && $(date +%s) - lastINSTchange >= LOADTIME))
+	then
+		((instances += 1))
+		lastINSTchange=$(date +%s)
+		echo $filenum $instances $TARGETLOAD $message
+	fi
+	CleanIdFile
+	until [ ${#children[@]} -lt $instances ]
+	do
+		load=$(sed 's/^\([0-9]\+\)[. ].*/\1/' /proc/loadavg)
+		if (( load > TARGETLOAD && instances > 1 && $(date +%s) - lastINSTchange >= LOADTIME))
+		then
+			((instances -= 1))
+			if ((instances < 1))
+			then
+				instances=1
+			fi
+			lastINSTchange=$(date +%s)
+			echo $filenum $instances $TARGETLOAD $message
+		elif (( load < TARGETLOAD && $(date +%s) - lastINSTchange >= LOADTIME))
+		then
+			((instances += 1))
+			lastINSTchange=$(date +%s)
+			echo $filenum $instances $TARGETLOAD $message
+		fi
+		CleanIdFile
+		read -t 0.5 -n 1 load_change||true
+		case $load_change in
+			+) ((TARGETLOAD += 1))
+			   echo $filenum $instances $TARGETLOAD $message
+			   ;;
+			-) ((TARGETLOAD -= 1))
+			   echo $filenum $instances $TARGETLOAD $message
+			   ;;
+			q) cleanup
+			   message=Exiting...
+			   echo $filenum $instances $TARGETLOAD $message
+			   ;;
+		esac
+		if ((instances < 1))
+		then
+			instances=1
+			echo $filenum $instances $TARGETLOAD $message
+		fi
+		unset message
+	done
+	theRealSox $filenum "$1" "$2" 2>>$TEMPDIR/debug-$MyPID-theRealSox &
+	children[$filenum]="${1#$ORIGDIR/}"
+}
+
+function FileDisappeared {
+	dialog --yes-label "Continue" \
+		--no-label "Rescan" \
+		--yesno "File $1 disappeared!" \
+		$LINES $COLUMNS
+}
+
+function FindFiles {
+	cd "$ORIGDIR" || {
+		echo "Could not cd into $ORIGDIR"
+		exit 1
+	}
+	cd -
+	readarray -t files < <(find "$ORIGDIR"/ \
+		-newer "$TIMESTAMP" \
+		-type f \
+		-printf "%TY%Tm%Td%TH%TM.%TS %P\n" \
+		| grep -v .timestamp \
+		| tee >(dialog --output-fd 1 --progressbox "Looking for new files..." \
+			$LINES $COLUMNS) \
+		| sort \
+		| sed 's/^[^ ]* //' )
+}
+
+function ShowProgress {
+	while read filenum concurrency targetload message
+	do
+		stamp=$(ls -go --time-style="+%d/%m/%Y %H:%M:%S" $TIMESTAMP | \
+			awk '{print $4 " " $5}')
+		if [ "$filenum" -gt 0 -a $nfiles -gt 0 ]
+		then
+			percent=$((${filenum:-${#files[@]}}*100/$nfiles))
+		else
+			percent=0
+		fi
+		echo XXX
+		echo $percent
+		echo "Position: ${filenum:-?} / $nfiles ($stamp) $message"
+		echo "$concurrency processes max. Target load: $targetload."
+		echo -e "(+/- to change, q to quit)\n"
+		sed 's/$/\n/' $FIFO
+		echo XXX
+	done \
+	| dialog \
+		--title "Transcoding files from $ORIGDIR to $DESTDIR..." \
+		--no-shadow \
+		--gauge "Transcoding files from $ORIGDIR to $DESTDIR..." \
+		$LINES $COLUMNS
+}
+
+function ProcessFiles {
+	lastINSTchange=$(date +%s)
+	for filenum in ${!files[@]}
+	do
+		filename=${files[$filenum]}
+		if [ -z "$filename" ]
+		then
+			break
+		fi
+		if [ ! -e "$ORIGDIR/$filename" ]
+		then
+			restart=1
+			return 0
+		fi
+		destfile="$DESTDIR/${filename%.*}.$FORMAT"
+		[ -d "${destfile%/?*}" ] || mkdir -p "${destfile%/?*}"
+		MySox "$ORIGDIR/$filename" "$destfile"
+		echo -n '' > $FIFO
+		for processInd in ${!children[@]}
+		do
+			echo ${children[$processInd]} >> $FIFO
+		done
+		echo $filenum $instances $TARGETLOAD $message
+		sleep 0.01
+	done
+	until [ ${#children[@]} -eq 0 ]
+	do
+		echo ${#files[@]} $instances $TARGETLOAD Finishing...
+		sleep 1
+		CleanIdFile
+	done
+	echo ${#files[@]} $instances $TARGETLOAD Done\!
+}
+
+function Work {
+	echo "Looking for new files..."
+	FindFiles 2>$TEMPDIR/debug-$MyPID-FindFiles
+
+	nfiles=${#files[@]}
+
+	ProcessFiles 2>$TEMPDIR/debug-$MyPID-ProcessFiles \
+	> >(ShowProgress 2>$TEMPDIR/debug-$MyPID-ShowProgress)
+	sleep 1
+	clear
+	if [ -n "$killed" ]
+	then
+		rm $FIFO $IDFIFO
+		exit 1
+	fi
+	while [ -n "$restart" ]
+	do
+		unset restart
+		if FileDisappeared
+		then
+			for indice in {0..$lastid}
+			do
+				unset files[$indice]
+			done
+			ProcessFiles 2>>$TEMPDIR/debug-$MyPID-ProcessFiles \
+			> >(ShowProgress 2>>$TEMPDIR/debug-$MyPID-ShowProgress)
+		else
+			Work
+		fi
+	done
+}
+
+Work
+rm $FIFO $IDFIFO
+
+set +x
+
+clear
+
+cd "$DESTDIR" || {
+	echo "Could not cd into $DESTDIR"
+	exit 1
+}
+(
+	echo "Obsolete files..."
+	find . -type f \
+		| grep -v .timestamp \
+		| grep -v 00-INDEX.txt \
+		| while read filename
+		do
+			if [ ! -e "$ORIGDIR/${filename%.$FORMAT}".* ]
+			then
+				echo "Deleting $filename..."
+				rm -f "$filename"
+			fi
+		done
+	cd "$DESTDIR"
+	cd "$OLDPWD"
+	echo -e "\nEmpty directories..."
+	find "$DESTDIR" -type d -empty -print -delete
+) | dialog --output-fd 1 --progressbox "Removing obsolete files..." $LINES $COLUMNS