.\" $OpenBSD: cdio.1,v 1.35 2006/06/01 06:32:17 mjc Exp $
.\"
.\" Copyright (c) 1995 Serge V. Vakulenko
.\" All rights reserved.
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.\"    must display the following acknowledgement:
.\"	This product includes software developed by Serge V. Vakulenko.
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.\"    derived from this software without specific prior written permission.
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.Dd July 3, 1995
.Dt CDIO 1
.Os
.Sh NAME
.Nm cdio
.Nd compact disc audio player and control utility
.Sh SYNOPSIS
.Nm cdio
.Op Fl sv
.Xo
.Oo Fl d
.Ar host : Ns Ar port Oc
.Xc
.Op Fl f Ar device
.Op Ar command args ...
.Sh DESCRIPTION
The
.Nm
program controls audio features of a CD drive.
The
.Ar device
is a name such
as
.Dq cd0
or
.Dq mcd0 .
.Pp
If a
.Ar device
is not specified, the environment variable
.Ev DISC
will be used to find the CD device.
.Pp
If no command is given,
.Nm
enters an interactive mode, reading commands from the standard input.
.Pp
The options are as follows:
.Bl -tag -width Ds
.It Xo
.Fl d
.Ar host : Ns Ar port
.Xc
Specifies cddb host (default: freedb.freedb.org:cddb).
.It Fl f Ar device
Specifies a device name such as
.Pa /dev/rcd0d
or
.Pa mcd0 .
Both absolute and relative paths to
.Pa /dev
filenames are possible.
The raw partition name is added if needed.
.It Fl s
Silent mode.
Do not print table headers or human-readable comments.
.It Fl v
Verbose mode.
Print as much information as possible.
.El
.Pp
The available commands are listed below.
Only as many characters as are required to uniquely identify a command
need be specified.
The word
.Ic play
may be omitted.
.Bl -tag -width Ds
.It Ic blank
Minimally blank the disc.
.It Ic cddb Op Ar n
Print the table of contents after matching the disc with the cddb.
In case of multiple matches, reissue the command with
.Ar n .
.It Ic cdid
Print the disc ID that will be used for matching with the cddb.
.It Ic close
Inject the disc.
.It Ic debug Ar on | off
Enable/disable the debugging mode of the CD device driver.
.It Ic device Ar devname
Make
.Ar devname
the current CD device.
This is the equivalent of quitting
.Nm
and restarting with a different device.
.It Ic eject
Eject the disc.
.It Ic exit
A synonym for
.Ic quit .
.It Ic help
Print the list of available commands.
.It Ic info
Print the table of contents.
.It Ic next
Play the next track.
If we're at the last track, stop.
.It Ic pause
Stop playing.
Do not stop the disc.
.It Ic play Ar first_track Op Ar last_track
Play from track
.Ar first_track
to track
.Ar last_track .
The first track has number 1 and may be omitted in all cases.
.It Xo Ic play
.Op Ar tr1
.Ar m1 : Ns Ar s1 Ns Op .f1
.Op Ar tr2
.Oo Ar m2 : Ns Ar s2 Ns
.Op .f2 Oc
.Xc
Play from the absolute address
(MSF) defined by
.Ar m1
in minutes,
.Ar s1
in seconds,
frame number
.Ar f1 ,
to the absolute address defined by
.Ar m2
in minutes,
.Ar s2
in seconds,
frame number
.Ar f2 .
If a track number is specified
.Pq tr Ns Ar X ,
then the minutes, seconds, and frame numbers
are relative to the start of that track.
Minutes are in the range 0\(en99.
Seconds are in the range 0\(en59.
Frame numbers are in the range 0\(en74.
.It Ic play Op Ar #start_block Op Ar length
Play starting from the logical block
.Ar start_block
using
.Ar length
logical blocks.
.It Ic previous
Play the previous track.
If we're at the first track, restart.
.It Ic quit
Quit the program.
.It Ic replay
Replay the current track again.
.It Ic reset
Perform a hardware reset of the device.
.It Ic resume
Resume playing.
Used after the
.Ic pause
command.
.It Ic set Ar lba | msf
Set LBA
.Pq Ar lba
or minute-second-frame
.Pq Ar msf
ioctl mode.
The default is minute-second-frame ioctl mode.
.It Ic status
Print information about the disc:
the current playing status and position,
the current media catalog status,
and the current values of the volume for left and right channels.
.It Ic stop
Stop the disc.
.It Xo Ic tao
.Op Fl a
.Op Fl d
.Ar trackfile ...
.Xc
Write a track-at-once CD containing each
.Ar trackfile
specified.
The tracktype is specified by using the
.Fl a
flag for audio and
.Fl d
for data tracks.
If there are more tracks specified than corresponding
types, the last type will be used for the remainder.
If no tracktypes are specified a track type of data is used.
This command is only available from the command line.
.It Ic volume Ar left_channel Ar right_channel
Set the volume of the left channel to
.Ar left_channel
and the volume of the right channel to
.Ar right_channel .
Allowed values are in the range 0\-255.
.It Xo Ic volume
.Ic left \*(Ba
.Ic right \*(Ba
.Ic mono \*(Ba
.Ic stereo \*(Ba
.Ic mute
.Xc
Respectively:
play the left subtrack on both left and right channels;
play the right subtrack on both left and right channels;
set mono mode;
set stereo mode;
turn the sound off.
.El
.Sh FILES
.Bl -tag -width /dev/rmcd0c -compact
.It Pa /dev/rcd0c
.It Pa /dev/rmcd0c
.El
.Sh SEE ALSO
.Xr aucat 1 ,
.Xr audioctl 1 ,
.Xr mixerctl 1 ,
.Xr audio 4
.Sh HISTORY
The
.Nm
command is based on
.Nm cdcontrol ,
which first appeared in
.Fx 2.1 .
.Sh AUTHORS
Jean-Marc Zucconi,
Andrey A. Chernov,
Serge V. Vakulenko,
Marc Espie