ogg123 man page on CentOS

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ogg123(1)			 Vorbis Tools			     ogg123(1)

NAME
       ogg123 - plays Ogg Vorbis files

SYNOPSIS
       ogg123  [  -vqzVh  ]  [ -k seconds ] [ -x nth ] [ -y ntimes ] [ -b buf‐
       fer_size ] [ -d driver [ -o option:value ] [ -f filename ] ]  file  ...
       | directory ...	| URL ...

DESCRIPTION
       ogg123  reads  Ogg  Vorbis  audio files and decodes them to the devices
       specified on the command line.  By default, ogg123 writes to the	 stan‐
       dard  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 subdirec‐
       tories 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.  Playback 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	 over‐
	      write it.

       -h, --help
	      Show command help.

       -k n, --skip n
	      Skip  the first 'n' seconds.  'n' may also be in minutes:seconds
	      or hours:minutes:seconds form.

       -K n, --end n
	      Stops playing 'n' seconds from the start of the stream.  'n' may
	      also have the same format as used in the --skip option.

       -o option:value, --device-option option:value
	      Assigns  the  option  option  to value for the preceding 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 normal speed.	 May be	 with  -x  for
	      interesting fractional speeds.

       -z, --shuffle
	      Play files in pseudo-random order.

DEVICES
       ogg123  supports a variety of audio output devices through libao.  Only
       those devices supported by the target platform 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 stan‐
	      dard out.	 In such circumstances, 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 con‐
	      catenated 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  confusingly  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 byte‐
	      order: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 play‐
       ing 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 audible immedi‐
       ately, 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 pro‐
	      grams.

       ~/.libao
	      Per-user config file to override the system wide	output	device
	      settings.

BUGS
       Piped  WAV files may cause strange behavior in other programs.  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  out‐
       put driver if you need to use ogg123 in a pipe.

SEE ALSO
       libao.conf(5)

AUTHORS
       Program Authors:
	      Kenneth Arnold <kcarnold-xiph@arnoldnet.net>
	      Stan Seibert <volsung@xiph.org>

       Manpage Author:
	      Stan Seibert <volsung@xiph.org>

Xiph.org Foundation	       2003 September 1			     ogg123(1)
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