README.md

@@ -1,47 +1,17 @@
 # AtOM: Anything to Ogg and Mp3
 
-This program is for you if
-1. you want to have your music collection in the highest quality possible
-2. you have devices that don't have enough storage to hold it or
-3. you have devices that support a limited number of formats
-
-To satisfy that need, we take a "source" directory, inventory and read tags for
-every file therein. From that, we can create and maintain copies of said 
-directory in other formats or quality. There is also the possibility of 
-ignoring or simply copying files with certain mime-types or extensions.
-
-We try to do this in a *smart* way, by only treating files that are new or 
-changed since the last run. 
-
-Apart from transcoding from one format to another, AtOM can also change 
-sample-rate, bitrate, and the number of channels! Say, for example, that you 
-want to stream your music through icecast. In addition to having all the files 
-in the same format, it will want a constant sample-rate and bitrate. You can 
-have AtOM do that!
-
-Here's what I have for my tests:
-| Directory | Format | Frequency | Bitrate | Channels | FAT32 compat. | ASCII | Size |
-| --------- | ------ | --------- | ------- | -------- | ------------- | ----- | ---- |
-| 0-Full    | Mixed  | Mixed     | Mixed   | Mixed    | No            | No    | 508G |
-| 1-High    | Opus   | Same      | 128     | Same     | Yes           | No    | 101G |
-| 2-Medium  | Opus   | Same      | 64      | Same     | Yes           | No    | 59G  |
-| 3-Small   | Opus   | Same      | 32      | Same     | Yes           | No    | 30G  |
-| 4-MP3     | MP3    | 44100     | 128     | 2        | Yes           | Yes   | 114G |
-
-
-
 * URL: https://framagit.org/ScriptFanix/AtOM/
 * Author: Vincent Riquer <vincent+prog.atom@riquer.fr>
-* Copyright/left: 2012-2013,2015,2025 Vincent Riquer - GPLv3
+* Copyright/left: 2012-2013,2015,2025 Vincent Riquer - GPLv3 (see doc/GPL-3)
+  - except: transogg: WTFPL 2.0
 
 ## Dependencies
 ### Required:
-* [bash](http://www.gnu.org/software/bash/bash.html) (>= 4.0)
+* [bash (>= 4.0)](http://www.gnu.org/software/bash/bash.html)
 * [SoX](http://sox.sourceforge.net/)
 * [SQLite](http://www.sqlite.org/)
 
 ### Optional:
-**Some features will be disabled** when not present.
 * [vorbis-tools](http://www.vorbis.com/)
     * `ogginfo` (Ogg Vorbis metadata)
     * `oggenc` (Ogg Vorbis encoding)
@@ -71,13 +41,13 @@ If, however, you still want to make changes manually, please read doc/config.
 There are a lot of comments in the generated config file too.
 
 ### Preparing data:
-Nothing specific needs to be done. You can edit your tags, rename files, move
+Nothing specific needs to be done. You can edit ypur tags, rename files, move
 them around how you see fit. However, make sure you setup your tag editor
 to *do* update the files' timestamps: though it was initially plan to make this
 optional, using checksums or tags, it was abandoned due to the huge amount of
 IO required.
 
-### Running:
+### Running:
 Make sure your configuration is correct by running 
 ```
 $ atom -C

atom

@@ -18,7 +18,6 @@ declare -A			\
 	destinationchannels	\
 	destinationfat32compat	\
 	destinationcopymime	\
-	destinationcopyext	\
 	destinationformat	\
 	destinationfrequency	\
 	destinationid		\
@@ -376,7 +375,7 @@ do
 	read -u4 line
 	until [[ $line == AtOM:NoMoreFiles ]]
 	do
-		removefile[${line%::AtOM:SQL:Sep::*}]="${line#*::AtOM:SQL:Sep::}"
+		removefile[${line%::AtOM:SQL:Sep::*}]="${line%::AtOM:SQL:Sep::*}"
 		read -u4 line
 	done
 done
@@ -430,7 +429,7 @@ echo '
 	CREATE TEMPORARY TABLE tasks(
 		id		INTEGER PRIMARY KEY,
 		requires	INTEGER,
-		required_by	INTEGER	DEFAULT 0,
+		required	INTEGER,
 		status		INTEGER NOT NULL,
 		key		TEXT	UNIQUE,
 		rename_pattern	TEXT,
@@ -642,7 +641,7 @@ do
 	getDestFile
 	for copy_ext in "${destinationcopyext[@]}"
 	do
-		if [[ $filename =~ '.*'"$copy_ext" ]]
+		if [[ $filename =~ '.*\.'$copy_ext'$' ]]
 		then
 			copied=1
 			break
@@ -907,7 +906,8 @@ then
 		FROM		tasks
 		INNER JOIN	source_files
 			ON	tasks.source_file=source_files.id
-		WHERE		tasks.status = 2;
+		WHERE		tasks.status = 2
+		AND		requires is NULL;
 
 		SELECT "AtOM:NoMoreFiles";' >&3
 	read -u4 line

doc/GPL-3

@@ -0,0 +1,674 @@
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+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+  If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients.  "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+  If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+  A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License.  You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.

lib/config/getDestination

@@ -186,7 +186,7 @@ getConfigDestination() {
 			destinationcopymime[$destination]="${destinationcopymime[$destination]:+${destinationcopymime[$destination]}|}$value"
 		;;
 		'copy_extension')
-			destinationcopyext[$destination]="${destinationcopyext[$destination]:+${destinationcopyext[$destination]}|}\.$value$"
+			destinationcopyext[$destination]="${destinationcopyext[$destination]:+${destinationcopyext[$destination]}|}$value"
 		;;
 		'higher-than')
 			expr='^[0-9]*$'

lib/database/open

@@ -11,7 +11,7 @@ openDatabase() {
 	if (( debug > 2 ))
 	then
 		exec 5>&3
-		exec 3> >(tee -a "$tempdir/debug.log" >&5)
+		exec 3> >(tee -a $tempdir/debug.log >&5)
 	fi
 	cat $schema >&3
 	echo '.separator ::AtOM:SQL:Sep::' >&3

lib/decode/file

@@ -153,24 +153,18 @@ decodeFile() {
 							done
 						)
 						status		0
-						cleanup		$tmpfile.wav
 					EOInsert
 				)
 				progressSpin
 			fi
 			if (( sox_needed ))
 			then
-				decodeSox "$tempdir/$tmpfile.wav"
+				cleanup="$tempdir/$tmpfile"
+				decodeSox "$tempdir/$tmpfile"
 				if ! soxtaskid=$(
 					Select tasks id <<<"key = $tmpfile"
 				)
 				then
-					parent_required=$(
-						Select tasks required_by			\
-							<<<"id = $decodetaskid"
-					)
-					Update tasks required_by $((++parent_required))	\
-						<<<"id = $decodetaskid"
 					soxtaskid=$(
 						Insert tasks <<-EOInsert
 							key		$tmpfile
@@ -182,8 +176,9 @@ decodeFile() {
 								done
 							)
 							requires	$decodetaskid
+							required	$decodetaskid
 							status		0
-							cleanup		$tmpfile.wav
+							cleanup		$cleanup
 						EOInsert
 					)
 					progressSpin

lib/encode/mp3

@@ -52,6 +52,7 @@ encodeFile::mp3() {
 		Insert tasks <<-EOInsert
 			key		${fileid}lame$destination
 			requires	${soxtaskid:-$decodetaskid}
+			required	${soxtaskid:-$decodetaskid}
 			fileid		$destfileid
 			filename	$destdir/$destfile.mp3
 			$(
@@ -65,6 +66,7 @@ encodeFile::mp3() {
 					echo "cmd_arg$key $cleanedopts"
 				done
 			)
+			cleanup		$tempdir/$tmpfile.wav
 			source_file	$fileid
 			status		0
 			rename_pattern	${destinationrenamepath[$destination]}/${destinationrename[$destination]}
@@ -72,12 +74,6 @@ encodeFile::mp3() {
 			ascii		${destinationascii["$destination"]}
 		EOInsert
 	)
-	parent_required=$(
-		Select tasks required_by			\
-			<<<"id = ${soxtaskid:-$decodetaskid}"
-	)
-	Update tasks required_by $((++parent_required))	\
-		<<<"id = ${soxtaskid:-$decodetaskid}"
 	progressSpin
 	soxtaskid=''
 }

lib/encode/opus

@@ -20,6 +20,7 @@ encodeFile::opus() {
 		Insert tasks <<-EOInsert
 			key		${fileid}opusenc$destination
 			requires	${soxtaskid:-$decodetaskid}
+			required	${soxtaskid:-$decodetaskid}
 			fileid		$destfileid
 			filename	$destdir/$destfile.opus
 			$(
@@ -33,6 +34,7 @@ encodeFile::opus() {
 					echo "cmd_arg$key $cleanedopts"
 				done
 			)
+			cleanup		$tempdir/$tmpfile.wav
 			source_file	$fileid
 			status		0
 			rename_pattern	${destinationrenamepath[$destination]}/${destinationrename[$destination]}
@@ -40,12 +42,6 @@ encodeFile::opus() {
 			ascii		${destinationascii["$destination"]}
 		EOInsert
 	)
-	parent_required=$(
-		Select tasks required_by			\
-			<<<"id = ${soxtaskid:-$decodetaskid}"
-	)
-	Update tasks required_by $((++parent_required))	\
-		<<<"id = ${soxtaskid:-$decodetaskid}"
 	progressSpin
 	soxtaskid=''
 }

lib/encode/vorbis

@@ -16,6 +16,7 @@ encodeFile::vorbis() {
 		Insert tasks <<-EOInsert
 			key		${fileid}oggenc$destination
 			requires	${soxtaskid:-$decodetaskid}
+			required	${soxtaskid:-$decodetaskid}
 			fileid		$destfileid
 			filename	$destdir/$destfile.ogg
 			$(
@@ -29,6 +30,7 @@ encodeFile::vorbis() {
 					echo "cmd_arg$key ${oggencopts[key]}"
 				done
 			)
+			cleanup		$tempdir/$tmpfile.wav
 			source_file	$fileid
 			status		0
 			rename_pattern	${destinationrenamepath[$destination]}/${destinationrename[$destination]}
@@ -36,12 +38,6 @@ encodeFile::vorbis() {
 			ascii		${destinationascii["$destination"]}
 		EOInsert
 	)
-	parent_required=$(
-		Select tasks required_by			\
-			<<<"id = ${soxtaskid:-$decodetaskid}"
-	)
-	Update tasks required_by $((++parent_required))	\
-		<<<"id = ${soxtaskid:-$decodetaskid}"
 	progressSpin
 	soxtaskid=''
 }

lib/files/getDestDir

@@ -86,8 +86,7 @@ getDestDir() {
 				echo "$thispart" >&${toascii[1]}
 				read -r -u${toascii[0]} thispart
 			fi
-			sanitized="$(sanitizeFile "$thispart" dir)"
+			destdir+="/$(sanitizeFile "$thispart" dir)"
-			destdir+="${sanitized:+/}$sanitized"
 			part=${part#*/}
 		done
 	fi

lib/tasks/gettaskinfos

@@ -4,6 +4,7 @@ gettaskinfos() {
 		SELECT
 			id,
 			source_file,
+			required,
 			cleanup,
 			fileid,
 			filename
@@ -15,6 +16,8 @@ gettaskinfos() {
 	rest="${line#*::AtOM:SQL:Sep::}::AtOM:SQL:Sep::"
 	sourcefileid=${rest%%::AtOM:SQL:Sep::*}
 	rest=${rest#*::AtOM:SQL:Sep::}
+	required=${rest%%::AtOM:SQL:Sep::*}
+	rest=${rest#*::AtOM:SQL:Sep::}
 	cleanup=${rest%%::AtOM:SQL:Sep::*}
 	rest=${rest#*::AtOM:SQL:Sep::}
 	destfileid=${rest%%::AtOM:SQL:Sep::*}

lib/workers/check

@@ -1,9 +1,5 @@
 #!/bin/bash
 checkworkers() {
-	local			\
-		taskid		\
-		parent_required	\
-		parent_task
 	for key in ${!workers[@]}
 	do
 		if ! kill -0 ${workers[key]} 2>/dev/null
@@ -18,19 +14,6 @@ checkworkers() {
 				failedtasks+=($taskid)
 				(( ++failed ))
 			fi
-			parent_task=$(
-				Select tasks requires	\
-					<<<"id = $taskid"
-			)
-			if (( parent_task ))
-			then
-				parent_required=$(
-					Select tasks required_by	\
-						<<<"id = $parent_task"
-				)
-				Update tasks required_by $((--parent_required))	\
-					<<<"id = $parent_task"
-			fi
 			unset workertasks[key]
 		fi
 	done

lib/workers/cleaner

@@ -1,23 +1,26 @@
 #!/bin/bash
 cleaner() {
-	local			\
-		key		\
-		faildepends	\
-		taskid		\
-		count
 	for key in ${!failedtasks[@]}
 	do
 		taskid=${failedtasks[key]}
 		gettaskinfos $taskid
 		faildepends=$(
-			Select tasks required_by <<-EOWhere
+			Select tasks 'COUNT(*)' <<-EOWhere
-				id = $taskid
+				requires = $taskid
 			EOWhere
 		)
 		(( failed+=faildepends ))
 		(( ran+=faildepends ))
 		Update tasks status 2 <<<"id = $taskid"
-		rm -f "$cleanup"
+		echo "SELECT	COUNT(*)
+			FROM	tasks
+			WHERE	( status = 0 OR status = 1 )
+			AND	required = $taskid;">&3
+		read -u4 count
+		if (( count == 0 ))
+		then
+			rm -f "$cleanup"
+		fi
 		unset failedtasks[key]
 	done
 	for key in ${!finishedtasks[@]}
@@ -44,28 +47,29 @@ cleaner() {
 			"		FROM tasks"			\
 			"		WHERE id=$taskid"		\
 			"	),"					\
-			"	fat32compat=("				\
+			"	fat32compat=("			\
 			"		SELECT fat32compat"		\
 			"		FROM tasks"			\
 			"		WHERE id=$taskid"		\
 			"	),"					\
-			"	ascii=("				\
+			"	ascii=("			\
-			"		SELECT ascii"			\
+			"		SELECT ascii"		\
 			"		FROM tasks"			\
 			"		WHERE id=$taskid"		\
 			"	)"					\
 			"WHERE  id=$destfileid;"			\
 			>&3
 		fi
-		count=$(Select tasks required_by <<<"id = $taskid")
+		echo "SELECT	COUNT(*)
+			FROM	tasks
+			WHERE	( status = 0 OR status = 1 )
+			AND	required = $taskid;">&3
+		read -u4 count
 		if (( count == 0 ))
 		then
-			[[ -n "$cleanup" ]] && rm -f "$tempdir/$cleanup"
+			rm -f "$cleanup"
-			Delete tasks <<<"id = $taskid"
-			unset finishedtasks[key]
-		else
-			Update tasks status 4	\
-				<<<"id = $taskid"
 		fi
+		Delete tasks <<<"id = $taskid"
+		unset finishedtasks[key]
 	done
 }

lib/workers/create

@@ -1,145 +1,5 @@
-#!/usr/bin/env bash
+#!/bin/bash
-
 createworker() {
-        (( ++active ))
+	worker $1 &
-        read -u4 line
+	workers[$1]=$!
-        taskid=${line%%::AtOM:SQL:Sep::*}
+}
-        rest="${line#*::AtOM:SQL:Sep::}::AtOM:SQL:Sep::"
-        sourcefileid=${rest%%::AtOM:SQL:Sep::*}
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
-        rest=${rest#*::AtOM:SQL:Sep::}
-        cleanup=${rest%%::AtOM:SQL:Sep::*}
-        rest=${rest#*::AtOM:SQL:Sep::}
-        destfileid=${rest%%::AtOM:SQL:Sep::*}
-        rest=${rest#*::AtOM:SQL:Sep::}
-        destfilename=${rest%%::AtOM:SQL:Sep::*}
-        rest=${rest#*::AtOM:SQL:Sep::}
-        for key in ${!cmd_arg[@]}
-        do
-                [ -z "${cmd_arg[key]}" ] && unset cmd_arg[key]
-        done
-        workerid=$(getworkerid)
-        workertasks[workerid]=$taskid
-        Update tasks status 1 <<<"id = $taskid"
-        worker $workerid &
-        workers[$workerid]=$!
-}

lib/workers/master

@@ -8,112 +8,7 @@ master() {
 			SELECT	COUNT(*)
 			FROM	tasks
 			WHERE	status = 0;
-		'>&3
 
-		read -u4 remaining
-		if (( remaining == 0 ))
-		then
-			sleep 0.1
-			return 0
-		fi
-
-		echo '
-			SELECT	COUNT(*)
-			FROM	tasks
-			WHERE	status = 0
-			AND	requires IN (
-					SELECT	id
-					FROM	tasks
-					WHERE	status = 4
-				);
-
-			SELECT
-				id,
-				source_file,
-				cmd_arg0,
-				cmd_arg1,
-				cmd_arg2,
-				cmd_arg3,
-				cmd_arg4,
-				cmd_arg5,
-				cmd_arg6,
-				cmd_arg7,
-				cmd_arg8,
-				cmd_arg9,
-				cmd_arg10,
-				cmd_arg11,
-				cmd_arg12,
-				cmd_arg13,
-				cmd_arg14,
-				cmd_arg15,
-				cmd_arg16,
-				cmd_arg17,
-				cmd_arg18,
-				cmd_arg19,
-				cmd_arg20,
-				cmd_arg21,
-				cmd_arg22,
-				cmd_arg23,
-				cmd_arg24,
-				cmd_arg25,
-				cmd_arg26,
-				cmd_arg27,
-				cmd_arg28,
-				cmd_arg29,
-				cmd_arg30,
-				cmd_arg31,
-				cmd_arg32,
-				cmd_arg33,
-				cmd_arg34,
-				cmd_arg35,
-				cmd_arg36,
-				cmd_arg37,
-				cmd_arg38,
-				cmd_arg39,
-				cmd_arg40,
-				cmd_arg41,
-				cmd_arg42,
-				cmd_arg43,
-				cmd_arg44,
-				cmd_arg45,
-				cmd_arg46,
-				cmd_arg47,
-				cmd_arg48,
-				cmd_arg49,
-				cmd_arg50,
-				cmd_arg51,
-				cmd_arg52,
-				cmd_arg53,
-				cmd_arg54,
-				cmd_arg55,
-				cmd_arg56,
-				cmd_arg57,
-				cmd_arg58,
-				cmd_arg59,
-				cleanup,
-				fileid,
-				filename
-			FROM	tasks
-			WHERE	status = 0
-			AND	requires IN (
-					SELECT	id
-					FROM	tasks
-					WHERE	status = 4
-					ORDER BY source_file
-					/* LIMIT 1 */
-				)
-			ORDER BY source_file
-			LIMIT 1;
-		'>&3
-
-		read -u4 ready
-		if (( ready > 0 ))
-		then
-			createworker
-			return 0
-		fi
-
-		echo '
 			SELECT	COUNT(*)
 			FROM	tasks
 			WHERE	status = 0
@@ -122,6 +17,7 @@ master() {
 			SELECT
 				id,
 				source_file,
+				required,
 				cmd_arg0,
 				cmd_arg1,
 				cmd_arg2,
@@ -191,12 +87,15 @@ master() {
 			ORDER BY source_file
 			LIMIT 1;
 		' >&3
-
+		read -u4 remaining
 		read -u4 ready
-
+		if (( remaining == 0 ))
-		if (( active == 0 && ready == 0 ))
 		then
-			dumpfile="$tempdir/tasks-$(date -Iseconds).csv"
+			sleep 0.1
+			return 0
+		elif (( active == 0 && ready == 0 ))
+		then
+			dumpfile=tasks-$(date +%Y%m%d%H%M%S).csv
 			cat <<-EOF
 
 
@@ -212,7 +111,6 @@ master() {
 			.mode list
 			.headers off
 			.output stdout
-			COMMIT;
 			EOSQL
 			closeDatabase
 			echo "Waiting for children to come back home..."
@@ -223,7 +121,148 @@ master() {
 		then
 			sleep 0.1
 		else
-			createworker
+			(( ++active ))
+			read -u4 line
+			taskid=${line%%::AtOM:SQL:Sep::*}
+			rest="${line#*::AtOM:SQL:Sep::}::AtOM:SQL:Sep::"
+			sourcefileid=${rest%%::AtOM:SQL:Sep::*}
+			rest=${rest#*::AtOM:SQL:Sep::}
+			required=${rest%%::AtOM:SQL:Sep::*}
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cmd_arg+=("${rest%%::AtOM:SQL:Sep::*}")
+			rest=${rest#*::AtOM:SQL:Sep::}
+			cleanup=${rest%%::AtOM:SQL:Sep::*}
+			rest=${rest#*::AtOM:SQL:Sep::}
+			destfileid=${rest%%::AtOM:SQL:Sep::*}
+			rest=${rest#*::AtOM:SQL:Sep::}
+			destfilename=${rest%%::AtOM:SQL:Sep::*}
+			rest=${rest#*::AtOM:SQL:Sep::}
+			for key in ${!cmd_arg[@]}
+			do
+				[ -z "${cmd_arg[key]}" ] && unset cmd_arg[key]
+			done
+			workerid=$(getworkerid)
+			workertasks[workerid]=$taskid
+			Update tasks status 1 <<<"id = $taskid"
+			createworker $workerid
 		fi
 	fi
 }

transogg

@@ -0,0 +1,503 @@
+#!/bin/bash
+
+cat <<-EOF
+This script is buggy and may destroy data
+DON'T USE IT!
+
+AtOM will be a clean and safe rewrite of this dirty hack.
+
+I repeat: DON'T use this script.
+EOF
+exit
+
+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