Ubuntu Manpage: mpg321 — Simple and lightweight command line MP3 player

NAME

       mpg321 — Simple and lightweight command line MP3 player

SYNOPSIS

       mpg321 [options] file(s) | URL(s) | -

DESCRIPTION

       mpg321  is  a  free  command-line  mp3  player, which uses the mad audio decoding library.
       mpg321 was written to be a drop-in replacement for the (by-then) non-free  mpg123  player.
       Some  functions  remain  unimplemented,  but  mpg321  should  function  as a basic drop-in
       replacement for mpg123 front-ends such as gqmpeg, and those programs which use  mpg123  to
       decode mp3 files (like gtoaster, and other CD-recording software).

OPTIONS

-o devicetype
Set the output device type to devicetype. devicetype can be one of:

oss - the Linux Open Sound System;

sun - the Sun audio system;

alsa - the Advanced Linux Sound Architecture;

alsa09 - the Advanced Linux Sound Architecture, version 0.9;

esd - the Enlightened Sound Daemon;

arts - the analog real-time synthesiser

See -a device, below.

-a device, --audiodevice device
Use device for audio-out instead of the default device, depending on the output
device you've chosen (via -o devicetype). By default this is the native sound
device. Generally this is the device for devicetype (or the default system
device) to use for output (i.e. /dev/sound/dsp1).

This option has no effect with -o arts.

For -o esd, specify the host on which esd is running; defaults to localhost.

For -o alsa, specify audio device using the hw:x,y syntax, where x and y are
numbers, default is hw:0,0. For example, if there is only one device installed,
in most cases, the device should be named hw:0,0. When there is only one
device, the device should always have the same name and numbers.

-g N, --gain N
Set gain (volume) to N (1-100).

-k N, --skip N
Skip N frames into the file being played.

-n N, --frames N
Decode only the first N frames of the stream. By default, the entire stream is
decoded.

-@ list, --list list
Use the file list for a playlist. The list should be in a format of filenames
followed by a line feed. Multiple -@ or --list specifiers will be ignored; only
the last -@ or --list option will be used. The playlist is concatenated with
filenames specified on the command-line to produce one master playlist. A
filename of '-' will cause standard input to be read as a playlist.

-z, --shuffle
Shuffle playlists and files specified on the command-line. Produces a randomly-
sorted playlist which is then played through once.

-Z, --random
Randomise playlists and files specified on the command-line. Files are played
through, choosing at random; this means that random files will be played for as
long as mpg321 is running.

-v, --verbose
Be more verbose. Show current byte, bytes remaining, time, and time remaining,
as well as more information about the mp3 file.

-s, --stdout
Use standard output instead of an audio device for output. Output is in 16-bit
PCM, little-endian.

-w N, --wav N
Write to wav file N instead of using the audio device. This option will be
preferred if --cdr or --au are specified too. Specifying '-' for N will cause
the file to be written to standard output.

--cdr N Write to cdr file N instead of using the audio device. Specifying '-' for N will
cause the file to be written to standard output.

--au N Write to au file N instead of using the audio device. Specifying '-' for N will
cause the file to be written to standard output.

-t, --test
Test mode; do no output at all.

-q, --quiet
Quiet mode; suppress output of mpg123 boilerplate and file and song name.

-B Read recursively the given directories. Allows you to define only the directory
or directories and then mpg321 recursively plays all the songs.

-F Turn on FFT analysis on PCM data. Remote mode only

-S Report song to AudioScrobbler (last.fm).

-x Set xterm title setting

-b Number of decoded frames for the output buffer.

-K Enable Basic Keys.

-R "Remote control" mode. Useful for front-ends. Allows seeking and pausing of mp3
files. See README.remote (in /usr/share/doc/mpg321 on Debian and some other
systems.)

-3, --restart
Restart "remote shell". Used only when in "Remote control" mode.

--stereo Force stereo output: duplicates mono stream on second output channel. Useful for
output for devices that don't understand mono, such as some CD players.

--aggressive
Aggressive mode; try to get higher priority on the system. Needs root
permissions.

--skip-printing-frames=N
Skip N frames between printing a frame status update, in both Remote Control
(-R) and verbose (-v) mode. Can help CPU utilisation on slower machines. This is
an mpg321-specific option.

-l N, --loop N
Loop song or playlist N times.If N is 0 means infinite times.

--help, --longhelp
Show summary of options.

-V, --version
Show version of program.

Basic keys (enabled with -K):

        * or /   Increase or decrease volume.

        n        Skip song.

        m        Mute/unmute.

AUTHOR

       This manual page was written by Joe Drew <drew@debian.org>.

       Maintained by Nanakos Chrysostomos <nanakos@wired-net.gr>.

       Permission is granted to copy, distribute and/or modify this document under the  terms  of
       the BSD license.  On Debian systems, this can be found in /usr/share/common-licenses/BSD.

                                                                                        MPG321(1)