ogg123(1) Vorbis Tools ogg123(1)NAMEogg123 - plays Ogg Vorbis files
SYNOPSISogg123 [ -vqzVh ] [ -k seconds ] [ -x nth ] [ -y ntimes ]
[ -b buffer_size ] [ -d driver [ -o option:value ] [ -f
filename ] ] file ... | directory ... | URL ...
DESCRIPTIONogg123 reads Ogg Vorbis audio files and decodes them to
the devices specified on the command line. By default,
ogg123 writes to the standard sound device, but output can
be sent to any number of devices. Files can be read from
the file system, or URLs can be streamed via HTTP. If a
directory is given, all of the files in it or its subdi
rectories will be played.
OPTIONS--audio-buffer n
Use an output audio buffer of approximately 'n'
kilobytes.
-@ playlist, --list playlist
Play all of the files named in the file 'playlist'.
The playlist should have one filename, directory
name, or URL per line. Blank lines are permitted.
Directories will be treated in the same way as on
the command line.
-b n, --buffer n
Use an input buffer of approximately 'n' kilobytes.
-p n, --prebuffer n
Prebuffer 'n' percent of the input buffer. Play
back won't begin until this prebuffer is complete.
-d device, --device device
Specify output device. See DEVICES section for a
list of devices. Any number of devices may be
specified.
-f filename, --file filename
Specify output file for file devices. The filename
"-" writes to standard out. If the file already
exists, ogg123 will overwrite it.
-h, --help
Show command help.
-k n, --skip n
Skip the first 'n' seconds
-o option:value, --device-option option:value
Assigns the option option to value for the preced
ing device. See DEVICES for a list of valid
options for each device.
-q, --quiet
Quiet mode. No messages are displayed.
-V, --version
Display version information.
-v, --verbose
Increase verbosity.
-x n, --nth
Play every 'n'th decoded block. Has the effect of
playing audio at 'n' times faster than normal
speed.
-y n, --ntimes
Repeat every played block 'n' times. Has the
effect of playing audio 'n' times slower than nor
mal speed. May be with -x for interesting frac
tional speeds.
-z, --shuffle
Play files in pseudo-random order.
DEVICESogg123 supports a variety of audio output devices through
libao. Only those devices supported by the target plat
form will be available. The -f option may only be used
with devices that write to files.
null Null driver. All audio data is discarded. (Note:
Audio data is not written to /dev/null !) You
could use this driver to test raw decoding speed
without output overhead.
oss Open Sound System driver for Linux and FreeBSD.
Options:
dsp DSP device for soundcard. Defaults
to /dev/dsp.
sun Sun Audio driver for NetBSD, OpenBSD, and Solaris.
Options:
dev Audio device for soundcard.
Defaults to /dev/audio.
alsa Advanced Linux Sound Architecture.
Options:
card Sound card number. (Default = 0)
dev Device number on the sound card.
(Default = 0)
buf_size
Override the default buffer size (in
bytes).
irix IRIX audio driver.
arts aRts Sound Daemon.
esd Enlightened Sound Daemon.
Options:
host The hostname where esd is running.
This can include a port number after
a colon, as in "whizbang.com:555".
(Default = localhost)
au Sun audio file output. Writes the audio samples in
AU format. The AU format supports writing to
unseekable files, like standard out. In such cir
cumstances, the AU header will specify the sample
format, but not the length of the recording.
raw Raw sample output. Writes raw audio samples to a
file.
Options:
byteorder
Choose big endian, little endian, or
native byte order. (Default =
"native")
wav WAV file output. Writes the sound data to disk in
uncompressed form. If multiple files are played,
all of them will be concatenated into the same WAV
file. WAV files cannot be written to unseekable
files, such as standard out. Use the AU format
instead.
EXAMPLES
The ogg123 command line is fairly flexible, perhaps con
fusingly so. Here are some sample command lines and an
explanation of what they do.
Play on the default soundcard:
ogg123 test.ogg
Play all of the files in the directory ~/music and its
subdirectories.
ogg123 ~/music
Play a file using the OSS driver:
ogg123-d oss test.ogg
Pass the "dsp" option to the OSS driver:
ogg123-d oss -o dsp:/dev/mydsp
Use the ESD driver
ogg123-d esd test.ogg
Use the WAV driver with the output file, "test.wav":
ogg123-d wav -f test.wav test.ogg
Listen to a file while you write it to a WAV file:
ogg123-d oss -d wav -f test.wav test.ogg
Note that options apply to the device declared to the
left:
ogg123-d oss -o dsp:/dev/mydsp -d raw -f test2.raw
-o byteorder:big test.ogg
Stress test your harddrive:
ogg123-d oss -d wav -f 1.wav -d wav -f 2.wav -d
wav -f 3.wav -d wav -f 4.wav -d wav -f 5.wav
test.ogg
Create an echo effect with esd and a slow computer:
ogg123-d esd -d esd test.ogg
INTERRUPT
You can abort ogg123 at any time by pressing Ctrl-C. If
you are playing multiple files, this will stop the current
file and begin playing the next one. If you want to abort
playing immediately instead of skipping to the next file,
press Ctrl-C within the first second of the playback of a
new file.
Note that the result of pressing Ctrl-C might not be audi
ble immediately, due to audio data buffering in the audio
device. This delay is system dependent, but it is usually
not more than one or two seconds.
FILES
/etc/libao.conf
Can be used to set the default output device for
all libao programs.
~/.libao
Per-user config file to override the system wide
output device settings.
BUGS
Piped WAV files may cause strange behavior in other pro
grams. This is because WAV files store the data length in
the header. However, the output driver does not know the
length when it writes the header, and there is no value
that means "length unknown". Use the raw or au output
driver if you need to use ogg123 in a pipe.
SEE ALSOlibao.conf(5)AUTHORS
Program Authors:
Kenneth Arnold <kcarnold@yahoo.com>
Stan Seibert <indigo@aztec.asu.edu>
Manpage Author:
Stan Seibert <indigo@aztec.asu.edu>
July 22, 2001 ogg123(1)
