NAME
cdplay —
compact disc player
SYNOPSIS
cdplay |
[-a audio
device] [-f
device]
[command ...] |
DESCRIPTION
cdplay is a program to control the audio features of a CD-ROM
drive.
If no command is given, then
cdplay enters interactive mode,
reading commands from the standard input.
The following options are available:
-
-
- -a
audio device
- Specify the audio device to use. Used only in digital
transfer mode. If not specified, the environment variables
AUDIODEV
and SPEAKER
will
be tried (in this order) to find the device; as a last resort,
/dev/sound will be used. If the
“-a” command line option is used, or the
CDPLAY_DIGITAL
environment variable is present,
digital transfer mode is switched on automatically.
-
-
- -f
device
- Specify the control device to use. Both absolute paths and
paths relative to /dev are accepted. The suffix
‘
c
’ (or
‘d
’ on some architectures, see
disklabel(8) for details)
is added to the device name if needed. If the device not specified, the
environment variables MUSIC_CD
,
CD_DRIVE
, DISC
and
CDPLAY
will be tried (in this order) to find the
device.
The available commands are listed below. Only as many characters as are required
to uniquely identify a command need be specified. The word
play can be omitted in all cases.
-
-
- play
[first_track
[last_track]]
- Play from track first_track to track
last_track. The first track has number 1.
-
-
- play
[start_m:start_s.start_f
[end_m:end_s.end_f]]
- Play from the absolute address (MSF) defined by
start_m in minutes, start_s,
in seconds and start_f (frame number) to the
absolute address defined by end_m in minutes,
end_s, in seconds and end_f
(frame number). Minutes are in the range 0-99. Seconds are in the range
0-59. Frame numbers are in the range 0-74.
-
-
- play
[#start_block
[length]]
- Play starting from the logical block
start_block using length
logical blocks.
-
-
- next
- Skip to the next track.
-
-
- prev
- Skip to the previous track.
-
-
- pause
- Stop playing. Do not stop the disc.
-
-
- resume
- Resume playing. Used after the pause
command.
-
-
- shuffle
- Select shuffle play. Only valid in interactive mode.
-
-
- single
[track]
- Pick a single track and play it repeatedly. If a
track argument is not given the
single command will shut shuffle mode off and play the
disc normally. Only valid in interactive mode.
-
-
- skip
- Skip to another track. Only valid when shuffle play is
selected.
-
-
- stop
- Stop the disc.
-
-
- eject
- Eject the disc.
-
-
- close
- Inject the disc.
-
-
- volume
left_channel right_channel
- Set the volume of left channel to
left_channel and the volume of right channel to
right_channel. Allowed values are in the range
0-255.
-
-
- volume
value
- Set the volume of both left channel right channel to
value. Allowed values are in the range 0-255.
-
-
- volume
mute
- Turn the sound off.
-
-
- volume
mono
- Set the mono mode.
-
-
- volume
stereo
- Set the stereo mode.
-
-
- volume
left
- Play the left subtrack on both left and right
channels.
-
-
- volume
right
- Play the right subtrack on both left and right
channels.
-
-
- info
- Print the table of contents.
-
-
- status
- Display the current audio, media and volume status.
-
-
- digital
n
- Turn on digital transfer mode. In this mode,
cdplay reads digital data from disc and sends it to an
audio device. A SCSI or ATAPI CD-ROM is required; and the audio device
must support CD audio format (44100 Hz sampling rate, 16-bit stereo
samples). Audio data are read and written in groups of
n frames (5 by default, or 1/15 seconds).
-
-
- analog
- Switch from digital back to analog mode.
-
-
- help
- Print the list of available commands.
-
-
- reset
- Perform the hardware reset of the device.
-
-
- set
msf
- Set minute-second-frame ioctl mode (default).
-
-
- set
lba
- Set LBA ioctl mode.
-
-
- quit
- Quit the program.
FILES
- /dev/cd??
-
- /dev/mcd??
-
SEE ALSO
disklabel(8),
mscdlabel(8)
HISTORY
The
cdplay command first appeared in
NetBSD
1.5. Support for digital transfer mode was added in
NetBSD 4.0.