MPG321

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:

	* or /		Increase or decrease volume.
	n		Skip song.
	m		Mute/unmute.

AUTHOR

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

Maintained by Nanakos Chrysostomos <nanakos AT wired-net DOT 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.