abcde - Online in the Cloud

PROGRAM:

NAME

abcde - Grab an entire CD and compress it to Ogg/Vorbis, MP3, FLAC, Ogg/Speex, AAC,
WavPack, Monkey's Audio (ape), MPP/MP+(Musepack), True Audio (tta) and/or MP2 format.

SYNOPSIS

abcde [options] [tracks]

DESCRIPTION

Ordinarily, the process of grabbing the data off a CD and encoding it, then tagging or
commenting it, is very involved. abcde is designed to automate this. It will take an
entire CD and convert it into a compressed audio format - Ogg/Vorbis, MPEG Audio Layer III
(MP3), Free Lossless Audio Codec (FLAC), Ogg/Speex, MPP/MP+(Musepack), M4A (AAC) wv
(WavPack), Monkey's Audio (ape), Opus, True Audio (tta) or MPEG Audio Layer II (MP2)
format(s). With one command, it will:

* Do a CDDB or Musicbrainz query over the Internet to look up your CD or use a
locally stored CDDB entry, or read CD-TEXT from your CD as a fallback for track
information

* Download the album art appropriate for your music tracks with many user
configurable options for download and post download alterations

* Grab an audio track (or all the audio CD tracks) from your CD

* Normalize the volume of the individual file (or the album as a single unit)

* Compress to Ogg/Vorbis, MP3, FLAC, Ogg/Speex, MPP/MP+(Musepack), M4A, wv (WavPack),
Monkey's Audio (ape), Opus format(s) True Audio (tta) and/or MP2, all in one CD
read

* Comment or ID3/ID3v2 tag

* Give an intelligible filename

* Calculate replaygain values for the individual file (or the album as a single unit)

* Delete the intermediate WAV file (or save it for later use)

* Repeat until finished

Alternatively, abcde can also grab a CD and turn it into a single FLAC file with an
embedded cuesheet which can be user later on as a source for other formats, and will be
treated as if it was the original CD. In a way, abcde can take a compressed backup of your
CD collection.

OPTIONS

-1 Encode the whole CD in a single file. The resulting file uses the CD title for
tagging. If the resulting format is a flac file with an embedded cuesheet, the file
can be used as a source for creating other formats. Use "-1 -o flac -a default,cue"
for obtaining such a file.

-a [actions]
Comma-delimited list of actions to perform. Can be one or more of: cddb, cue, read,
getalbumart, normalize, encode, tag, move, replaygain, playlist, clean. Normalize
and encode imply read. Tag implies cddb, read, encode. Move implies cddb, read,
encode, tag. Replaygain implies cddb, read, encode, tag and move. Playlist implies
cddb. The default is to do all actions except cue, normalize, replaygain,
getalbumart and playlist.

-b Enable batch mode normalization. See the BATCHNORM configuration variable.

-c [filename]
Specifies an additional configuration file to parse. Configuration options in this
file override those in /etc/abcde.conf or $HOME/.abcde.conf.

-C [discid]
Allows you to resume a session for discid when you no longer have the CD available
(abcde will automatically resume if you still have the CD in the drive). You must
have already finished at least the "read" action during the previous session.

-d [devicename | filename]
CD-ROM block device that contains audio tracks to be read. Alternatively, a single-
track flac file with embedded cuesheet.

-D Capture debugging information (you'll want to redirect this - try 'abcde -D
2>logfile')

-e Erase information about encoded tracks from the internal status file, to enable
other encodings if the wav files have been kept.

-f Force the removal of the temporary ABCDETEMPDIR directory, even when we have not
finished. For example, one can read and encode several formats, including ´.ogg´,
and later on execute a ´move´ action with only one of the given formats. On a
normal situation it would erase the rest of those encoded formats. In this case,
abcde will refuse to execute such command, except if -f is used.

-g Enable lame's --nogap option. See the NOGAP variable. WARNING: lame's --nogap
disables the Xing mp3 tag. This tag is required for mp3 players to correctly
display track lengths when playing variable-bit-rate mp3 files.

-G Download album art using the getalbumart function. This is best done with
CDDBMETHOD set to musicbrainz and requires the installation of glyrc. ImageMagick
is an optional but highly recommended package. Further details of getalbumart can
be found in the abcde FAQ document packaged with abcde.

-h Get help information.

-j [number]
Start [number] encoder processes at once. Useful for SMP systems. Overrides the
MAXPROCS configuration variable. Set it to "0" when using distmp3 to avoid local
encoding processes.

-k Keep the wav files after encoding.

-l Use the low-diskspace algorithm. See the LOWDISK configuration variable.

-L Use a local CDDB repository. See CDDBLOCALDIR variable.

-m Create DOS-style playlists, modifying the resulting one by adding CRLF line
endings. Some hardware players insist on having those to work.

-n Do not query CDDB database. Create and use a template. Edit the template to provide
song names, artist(s), ...

-N Non interactive mode. Do not ask anything from the user. Just go ahead.

-o [filetype][:filetypeoptions]
Select output type. Can be "vorbis" (or "ogg"), "mp3", "flac", "spx", "mpc", "m4a",
"wav", "wv", "ape" or "opus". Specify a comma-delimited list of output types to
obtain all specified types. See the OUTPUTTYPE configuration variable. One can
pass options to the encoder for a specific filetype on the command line separating
them with a colon. The options must be escaped with double-quotes.

-p Pads track numbers with 0´s.

-P Use Unix PIPES to read and encode in one step (USEPIPES). This disables multiple
encodings, since the WAV audio file is never stored in the disc. For more detail on
this option see the FAQ document in the source tarball.

-r [hosts...]
Remote encode on this comma-delimited list of machines using distmp3. See the
REMOTEHOSTS configuration variable.

-s [fields...]
List, separated by commas, the fields to be shown in the CDDB parsed entries.
Right now it only uses "year" and "genre".

-S [speed]
Set the speed of the CD drive. Needs CDSPEED and CDSPEEDOPTS set properly and both
the program and device must support the capability.

-t [number]
Start the numbering of the tracks at a given number. It only affects the filenames
and the playlist. Internal (tag) numbering remains the same.

-T [number]
Same as -t but changes also the internal (tag) numbering. Keep in mind that the
default TRACK tag for MP3 is $T/$TRACKS so it is changed to simply $T.

-U Set CDDBPROTO to version 5, so that we retrieve ISO-8859-15 encoded CDDB
information, and we tag and add comments with Latin1 encoding.

-v Show the version and exit

-V Be more verbose. On slow networks the CDDB requests might give the sensation
nothing is happening. Add this more than once to make things even more verbose.

-x Eject the CD when all tracks have been read. See the EJECTCD configuration
variable.

-X [cue2discid]
Use an alternative "cue2discid" implementation. The name of the binary must be
exactly that. abcde comes with an implementation in python under the examples
directory. The special keyword "builtin" forces the usage of the internal (default)
implementation in shell script.

-w [comment]
Add a comment to the tracks ripped from the CD. If you wish to use parentheses,
these will need to be escaped. i.e. you have to write "\(" instead of "(".

-W [number]
Concatenate CD´s. It uses the number provided to define a comment "CD #" and to
modify the numbering of the tracks, starting with "#01". For Ogg/Vorbis and FLAC
files, it also defines a DISCNUMBER tag.

-z DEBUG mode: it will rip, using cdparanoia, the very first second of each track and
proceed with the actions requested very quickly, also providing some "hidden"
information about what happens on the background. CAUTION: IT WILL ERASE ANY
EXISTING RIPS WITHOUT WARNING!

[tracks]
A list of tracks you want abcde to process. If this isn't specified, abcde will
process the entire CD. Accepts ranges of track numbers - "abcde 1-5 7 9" will
process tracks 1, 2, 3, 4, 5, 7, and 9.

OUTPUT

Each track is, by default, placed in a separate file named after the track in a
subdirectory named after the artist under the current directory. This can be modified
using the OUTPUTFORMAT and VAOUTPUTFORMAT variables in your abcde.conf. Each file is given
an extension identifying its compression format, 'vorbis' for '.ogg', '.mp3', '.flac',
'.spx', '.mpc', '.wav', 'wv', 'ape' or '.opus'.

CONFIGURATION

abcde sources two configuration files on startup - /etc/abcde.conf and $HOME/.abcde.conf,
in that order.

The configuration options stated in those files can be overridden by providing the
appropriate flags at runtime.

The configuration variables have to be set as follows:

VARIABLE=value
Except when "value" needs to be quoted or otherwise interpreted. If other variables
within "value" are to be expanded upon reading the configuration file, then double
quotes should be used. If they are only supposed to be expanded upon use (for
example OUTPUTFORMAT) then single quotes must be used.

All shell escaping/quoting rules apply.

Here is a list of options abcde recognizes:

CDDBMETHOD
Specifies the method we want to use to retrieve the track information. Two values
are recognized: "cddb" and "musicbrainz". The "cddb" value needs the CDDBURL and
HELLOINFO variables described below. The "musicbrainz" value uses the Perl helper
script abcde-musicbrainz-tool to establish a conversation with the Musicbrainz
server for information retrieval.

CDDBURL
Specifies a server to use for CDDB lookups.

CDDBPROTO
Specifies the protocol version used for the CDDB retrieval of results. Version 6
retrieves CDDB entries in UTF-8 format.

HELLOINFO
Specifies the Hello information to send to the CDDB server. The CDDB protocol
requires you to send a valid username and hostname each time you connect. The
format of this is username@hostname.

CDDBLOCALDIR
Specifies a directory where we store a local CDDB repository. The entries must be
standard CDDB entries, with the filename being the DISCID value. Other CD playing
and ripping programs (like Grip) store the entries under ~/.cddb and we can make
use of those entries.

CDDBLOCALRECURSIVE
Specifies if the CDDBLOCALDIR has to be searched recursively trying to find a match
for the CDDB entry. If a match is found and selected, and CDDBCOPYLOCAL is
selected, it will be copied to the root of the CDDBLOCALDIR if CDDBLOCALPOLICY is
"modified" or "new". The default "y" is needed for the local CDDB search to work.

CDDBLOCALPOLICY
Defines when a CDDB entry should be stored in the defined CDDBLOCALDIR. The
possible policies are: "net" for a CDDB entry which has been received from the net
(overwriting any possible local CDDB entry); "new" for a CDDB entry which was
received from the net, but will request confirmation to overwrite a local CDDB
entry found in the root of the CDDBLOCALDIR directory; "modified" for a CDDB entry
found in the local repository but which has been modified by the user; and "always"
which forces the CDDB entry to be stored back in the root of the CDDBLOCALDIR no
matter where it was found, and no matter it was not edited. This last option will
always overwrite the one found in the root of the local repository (if any). STILL
NOT WORKING!!

CDDBCOPYLOCAL
Store local copies of the CDDB entries under the $CDDBLOCALDIR directory.

CDDBUSELOCAL
Actually use the stored copies of the CDDB entries. Can be overridden using the
"-L" flag (if is CDDBUSELOCAL in "n"). If an entry is found, we always give the
choice of retrieving a CDDB entry from the internet.

SHOWCDDBFIELDS
Coma-separated list of fields we want to parse during the CDDB parsing. Defaults
to "year,genre".

OGGENCODERSYNTAX
Specifies the style of encoder to use for the Ogg/Vorbis encoder. Valid options are
´oggenc´ (default for Ogg/Vorbis) and ´vorbize´. This affects the default location
of the binary, the variable to pick encoder command-line options from, and where
the options are given.

MP3ENCODERSYNTAX
Specifies the style of encoder to use for the MP3 encoder. Valid options are ´lame´
(default for MP3), ´gogo´, ´bladeenc´, ´l3enc´ and ´mp3enc´. Affects the same way
as explained above for Ogg/Vorbis.

FLACENCODERSYNTAX
Specifies the style of encoder to use for the FLAC encoder. At this point only
´flac´ is available for FLAC encoding.

MP2ENCODERSYNTAX
Specifies the style of encoder to use for the MPEG-1 Audio Layer II (MP2) encoder.
At this point both ´twolame´ and ´ffmpeg´ are available for MP2 encoding.

SPEEXENCODERSYNTAX
Specifies the style of encoder to use for Speex encoder. At this point only
´speexenc´ is available for Ogg/Speex encoding.

MPCENCODERSYNTAX
Specifies the style of encoder to use for MPP/MP+ (Musepack) encoder. At this point
we only have ´mpcenc´ available, from musepack.net.

AACENCODERSYNTAX
Specifies the style of encoder to use for M4A (AAC) encoder. We support ´faac´ as
´default´ as well as higher quality audio with neroAacEnc, fdkaac, qaac,fhgaacenc
and FFmpeg or avconv. If qaac, refalac or FFmpeg / avconv are used it is also
possible to generate Apple Lossless Audio Codec (alac) files. Note that qaac,
refalac and fhgaacenc are Windows applications which require Wine to be installed.

TTAENCODERSYNTAX
Specifies the style of encoder to use for True Audio (tts) encoding. We support
´tta´ as default but the older ´ttaenc´ can be used as well.

WVENCODERSYNTAX
Specifies the style of encoder to use for WavPack. We support ´wavpack´ as
´default´ but ´ffmpeg' is the other option (Note that this is for FFmpeg only as
avconv does not have a native WavPack encoder).

APENCODERSYNTAX
Specifies the style of encoder to use for Monkey's Audio (ape). We support ´mac´,
Monkey's Audio Console, as ´default´.

OPUSENCODERSYNTAX
Specifies the style of encoder to use for the Opus encoder. At this point only
´opusenc´ is available for Opus encoding.

NORMALIZERSYNTAX
Specifies the style of normalizer to use. Valid options are ´default´ and
´normalize' (and both run ´normalize-audio´), since we only support it, ATM.

CDROMREADERSYNTAX
Specifies the style of cdrom reader to use. Valid options are ´cdparanoia´,
´libcdio' ´debug´ and ´flac´. It is used for querying the CDROM and obtain a list
of valid tracks and DATA tracks. The special ´flac´ case is u sed to "rip" CD
tracks from a single-track flac file.

CUEREADERSYNTAX
Specifies the syntax of the program we use to read the CD CUE sheet. Right now we
only support ´mkcue´, but in the future other readers might be used.

KEEPWAVS
It defaults to no, so if you want to keep those wavs ripped from your CD, set it to
"y". You can use the "-k" switch in the command line. The default behaviour with
KEEPWAVS set is to keep the temporary directory and the wav files even you have
requested the "clean" action.

PADTRACKS
If set to "y", it adds 0's to the file numbers to complete a two-number holder.
Useful when encoding tracks 1-9.

INTERACTIVE
Set to "n" if you want to perform automatic rips, without user intervention.

NICE VALUES
Define the values for priorities (nice values) for the different CPU-hungry
processes: encoding (ENCNICE), CDROM read (READNICE) and distributed encoder with
distmp3 (DISTMP3NICE).

PATHNAMES
The following configuration file options specify the pathnames of their respective
utilities: LAME, GOGO, BLADEENC, L3ENC, XINGMP3ENC, MP3ENC, VORBIZE, OGGENC, FLAC,
SPEEXENC, MPCENC, WAVEPACK, APENC, OPUSENC, ID3, EYED3, METAFLAC, CDPARANOIA,
CD_PARANOIA, CDDA2WAV, PIRD, CDDAFS, CDDISCID, CDDBTOOL, EJECT, MD5SUM, DISTMP3,
VORBISCOMMENT, NORMALIZE, CDSPEED, MP3GAIN, VORBISGAIN, MPCGAIN, MKCUE, MKTOC,
CUE2DISCID (see option "-X"), DIFF, HTTPGET, GLYRC, IDENTIFY, DISPLAYCMD, CONVERT,
QAAC, WINE, FHGAACENC, ATOMICPARSLEY, FFMPEG, TWOLAME, MID3V2, TTA and TTAENC.

COMMAND-LINE OPTIONS
If you wish to specify command-line options to any of the programs abcde uses, set
the following configuration file options: LAMEOPTS, GOGOOPTS, BLADEENCOPTS,
L3ENCOPTS, XINGMP3ENCOPTS, MP3ENCOPTS, VORBIZEOPTS, WAVEPACKENCOPTS, APENCOPTS,
OGGENCOPTS, FLACOPTS, SPEEXENCOPTS, MPCENCOPTS, FAACENCOPTS, NEROAACENCOPTS,
FDKAACENCOPTS, OPUSENCOPTS, ID3OPTS, EYED3OPTS, MP3GAINOPTS, CDPARANOIAOPTS,
CDDA2WAVOPTS, PIRDOPTS, CDDAFSOPTS, CDDBTOOLOPTS, EJECTOPTS, DISTMP3OPTS,
NORMALIZEOPTS, CDSPEEDOPTS, MKCUEOPTS, VORBISCOMMMENTOPTS, METAFLACOPTS, DIFFOPTS,
FLACGAINOPTS, VORBISGAINOPTS, HTTPGETOPTS, GLYRCOPTS, IDENTIFYOPTS, CONVERTOPTS,
DISPLAYCMDOPTS, QAACENCOPTS, FHGAACENCOPTS, ATOMICPARSLEYOPTS, FFMPEGENCOPTS,
TWOLAMENCOPTS and TTAENCOPTS.

CDSPEEDVALUE
Set the value of the CDROM speed. The default is to read the disc as fast as the
reading program and the system permits. The steps are defined as 150kB/s (1x).

ACTIONS
The default actions to be performed when reading a disc.

CDROM If set, it points to the CD-Rom device which has to be used for audio extraction.
Abcde tries to guess the right device, but it may fail. The special ´flac´ option
is defined to extract tracks from a single-track flac file.

CDPARANOIACDROMBUS
Defined as "d" when using cdparanoia with an IDE bus and as "g" when using
cdparanoia with the ide-scsi emulation layer.

OUTPUTDIR
Specifies the directory to place completed tracks/playlists in.

WAVOUTPUTDIR
Specifies the temporary directory to store .wav files in. Abcde may use up to 700MB
of temporary space for each session (although it is rare to use over 100MB for a
machine that can encode music as fast as it can read it).

OUTPUTTYPE
Specifies the encoding format to output, as well as the default extension and
encoder. Defaults to "vorbis". Valid settings are "vorbis" (or "ogg") (Ogg/Vorbis),
"mp3" (MPEG-1 Audio Layer III), "flac" (Free Lossless Audio Codec), "mp2" (MPEG-1
Audio Layer III), "spx" (Ogg/Speex), "mpc" (MPP/MP+ (Musepack), "m4a" (AAC or
ALAC),"wv" (WavPack"), "wav" (Microsoft Waveform), "opus" (Opus Interactive Audio
Codec) or "tta" (True Audio). Values like "vorbis,mp3" encode the tracks in both
Ogg/Vorbis and MP3 formats. For example:
OUTPUTTYPE=vorbis,flac
For each value in OUTPUTTYPE, abcde expands a different process for encoding,
tagging and moving, so you can use the format placeholder, OUTPUT, to create
different subdirectories to hold the different types. The variable OUTPUT will be
'vorbis', 'mp3', 'flac', 'spx', 'mpc', 'm4a', mp2, 'wv', 'ape', 'tta' and/or 'wav',
depending on the OUTPUTTYPE you define. For example
OUTPUTFORMAT='${OUTPUT}/${ARTISTFILE}/${ALBUMFILE}/${TRACKNUM}._${TRACKFILE}'

OUTPUTFORMAT
Specifies the format for completed Ogg/Vorbis, MP3, FLAC, Ogg/Speex, MPP/MP+
(Musepack) or M4A filenames. Variables are included using standard shell syntax.
Allowed variables are GENRE, ALBUMFILE, ARTISTFILE, TRACKFILE, TRACKNUM, and YEAR.
Default is ´${ARTISTFILE}-${ALBUMFILE}/${TRACKNUM}-${TRACKFILE}´. Make sure to use
single quotes around this variable. TRACKNUM is automatically zero-padded, when the
number of encoded tracks is higher than 9. When lower, you can force with '-p' in
the command line.

VAOUTPUTFORMAT
Just like OUTPUTFORMAT but for Various Artists discs. The default is

ONETRACKOUTPUTFORMAT
Just like OUTPUTFORMAT but for single-track rips (see option "-1"). The default is
'${ARTISTFILE}-${ALBUMFILE}/${ALBUMFILE}'

VAONETRACKOUTPUTFORMAT
Just like ONETRACKOUTPUTFORMAT but for Various Artists discs. The default is
'Various-${ALBUMFILE}/${ALBUMFILE}'

MAXPROCS
Defines how many encoders to run at once. This makes for huge speedups on SMP
systems. You should run one encoder per CPU at once for maximum efficiency,
although more doesn't hurt very much. Set it "0" when using mp3dist to avoid
getting encoding processes in the local host.

LOWDISK
If set to y, conserves disk space by encoding tracks immediately after reading
them. This is substantially slower than normal operation but requires several
hundred MB less space to complete the encoding of an entire CD. Use only if your
system is low on space and cannot encode as quickly as it can read.

Note that this option may also help when reading a CD with errors. This is because
on a scratchy disk reading is quite timing sensitive and this option reduces the
background load on the system which allows the ripping program more precise
control.

BATCHNORM
If set to y, enables batch mode normalization, which preserves relative volume
differences between tracks of an album. Also enables nogap encoding when using the
´lame´ encoder.

NOGAP Activate the lame's --nogap option, that allows files found in CDs with no silence
between songs (such as live concerts) to be encoded without noticeable gaps.
WARNING: lame's --nogap disables the Xing mp3 tag. This tag is required for mp3
players to correctly display track lengths when playing variable-bit-rate mp3
files.

PLAYLISTFORMAT
Specifies the format for completed playlist filenames. Works like the OUTPUTFORMAT
configuration variable. Default is ´${ARTISTFILE}_-_${ALBUMFILE}.m3u´. Make sure
to use single quotes around this variable.

PLAYLISTDATAPREFIX
Specifies a prefix for filenames within a playlist. Useful for http playlists, etc.

DOSPLAYLIST
If set, the resulting playlist will have CR-LF line endings, needed by some
hardware-based players.

COMMENT
Specifies a comment to embed in the ID3 or Ogg comment field of each finished
track. Can be up to 28 characters long. Supports the same syntax as OUTPUTFORMAT.
Does not currently support ID3v2.

REMOTEHOSTS
Specifies a comma-delimited list of systems to use for remote encoding using
distmp3. Equivalent to -r.

mungefilename
mungefilename() is an abcde shell function that can be overridden via abcde.conf.
It takes CDDB data as $1 and outputs the resulting filename on stdout. It defaults
to deleting any preceding dots to filename, replacing spaces with an underscore and
eating characters which variously Windows and Linux do not permit.
If you modify this function, it is probably a good idea to keep the forward slash
munging (UNIX cannot store a file with a '/' char in it) as well as the control
character munging (NULs can't be in a filename either, and newlines and such in
filenames are typically not desirable).

mungegenre
mungegenre () is a shell function used to modify the $GENRE variable. As a default
action, it takes $GENRE as $1 and outputs the resulting value to stdout converting
all UPPERCASE characters to lowercase.

pre_read
pre_read () is a shell function which is executed before the CDROM is read for the
first time, during abcde execution. It can be used to close the CDROM tray, to set
its speed (via "setcd" or via "eject", if available) and other preparation actions.
The default function is empty.

post_read
post_read () is a shell function which is executed after the CDROM is read (and, if
applies, before the CDROM is ejected). It can be used to read a TOC from the CDROM,
or to try to read the DATA areas from the CD (if any exist). The default function
is empty.

EJECTCD
If set to "y", abcde will call eject(1) to eject the cdrom from the drive after all
tracks have been read. It has no effect when CDROM is set to a flac file.

EXTRAVERBOSE
If set to "1", some operations which are usually now shown to the end user are
visible, such as CDDB queries. Useful for initial debug and if your network/CDDB
server is slow. Set to "2" or more for even more verbose output.

EXAMPLES

Possible ways one can call abcde:

abcde Will work in most systems

abcde -d /dev/cdrom2
If the CDROM you are reading from is not the standard /dev/cdrom (in GNU/Linux
systems)

abcde -o vorbis,flac
Will create both Ogg/Vorbis and Ogg/FLAC files.

abcde -o vorbis:"-b 192"
Will pass "-b 192" to the Ogg/Vorbis encoder, without having to modify the config
file

abcde -W 1
For double+ CD settings: will create the 1st CD starting with the track number 101,
and will add a comment "CD 1" to the tracks, the second starting with 201 and so
on.

abcde -d singletrack.flac -o vorbis:"-q 6"
Will extract the files contained in singletrack FLAC file using the embedded
cuesheet and then encode the output files to Ogg/Vorbis with a quality setting of
6.

BACKEND TOOLS

abcde requires the following backend tools to work:

* An Ogg/Vorbis, MP3, FLAC, Ogg/Speex, MPP/MP+(Musepack), M4A encoder or Opus encoder
(oggenc, vorbize, lame, gogo, bladeenc, l3enc, mp3enc, flac, speexenc, mpcenc,
faac, neroAacEnc, fdkaac, wavpack, opusenc).

* An audio CD reading utility (cdparanoia, icedax, cdda2wav, libcdio (cd-paranoia),
pird, dagrab). To read CD-TEXT information, icedax or cdda2wav will be needed.

* cd-discid, a CDDB DiscID reading program.

* An HTTP retrieval program: wget, fetch (FreeBSD) or curl (Mac OS X, among others).
Alternatively, abcde-musicbrainz-tool (which depends on Perl and some Musicbrainz
libraries) can be used to retrieve CDDB information about the CD.

* (for MP3s) id3 or eyeD3, id3 v1 and v2 tagging programs.

* For Monkey's Audio (ape) tagging Robert Muth's 'apetag' is required.

* To retrieve album art a glyrc package is required and optionally the ImageMagick
package should be installed.

* (optional) distmp3, a client/server for distributed mp3 encoding.

* (optional) normalize-audio, a WAV file volume normalizer.

* (optional) a replaygain file volume modifier (vorbisgain, metaflac, mp3gain,
mpcgain, wvgain),

* (optional) mkcue, a CD cuesheet extractor.

Use abcde online using onworks.net services