.\"
-.\" Copyright (C) 2007 Richard Kettlewell
+.\" Copyright (C) 2007-2009 Richard Kettlewell
.\"
-.\" This program is free software; you can redistribute it and/or modify
+.\" This program is free software: you can redistribute it and/or modify
.\" it under the terms of the GNU General Public License as published by
-.\" the Free Software Foundation; either version 2 of the License, or
+.\" the Free Software Foundation, either version 3 of the License, or
.\" (at your option) any later version.
-.\"
-.\" This program is distributed in the hope that it will be useful, but
-.\" WITHOUT ANY WARRANTY; without even the implied warranty of
-.\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-.\" General Public License for more details.
-.\"
+.\"
+.\" This program is distributed in the hope that it will be useful,
+.\" but WITHOUT ANY WARRANTY; without even the implied warranty of
+.\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+.\" GNU General Public License for more details.
+.\"
.\" You should have received a copy of the GNU General Public License
-.\" along with this program; if not, write to the Free Software
-.\" Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
-.\" USA
+.\" along with this program. If not, see <http://www.gnu.org/licenses/>.
.\"
.TH disorder-playrtp 1
.SH NAME
.B disorder\-playrtp
.RI [ OPTIONS ]
.RB [ \-\- ]
-.RI [[ GROUP ]
+.RI [[ ADDRESS ]
.IR PORT ]
.SH DESCRIPTION
\fBdisorder\-playrtp\fR plays a network broadcast sent from the specified
address.
.PP
-If neither a group nor port are specified then the local DisOrder
+If neither an address nor port are specified then the local DisOrder
configuration is consulted to find the server and the server is asked where the
RTP stream is.
.PP
If just a port is specified then the RTP stream is assumed to be unicast or
broadcast to that port.
.PP
-If a group and a port are specified then the RTP stream is assumed to be
-multicast to that group and port.
+If an address and a port are specified then the RTP stream is assumed to be
+multicast to that group address and port.
.SH OPTIONS
The default sound API is the first of the ones listed below that are available.
Usually this implies ALSA under Linux and Core Audio under OS X.
.TP
-.B \-\-alsa\fR, \fB-\a
+.B \-\-alsa\fR, \fB\-a
Use ALSA to play sound.
+Only available on Linux.
.TP
.B \-\-oss\fR, \fB\-o
Use OSS to play sound.
+Only available on Linux and FreeBSD.
.TP
.B \-\-core\-audio\fR, \fB\-c
Use Core Audio to play sound.
+Only available on Macs.
.TP
.B \-\-device \fIDEVICE\fR, \fB\-D \fIDEVICE\fR
Specifies the audio device to use.
-The exact meaning of this is platform-dependent; on Linux it is the
-ALSA device name.
+See
+.B "DEVICE NAMES"
+below for more information.
+.TP
+.B \-\-command \fICOMMAND\fR, \fB-e \fICOMMAND\fR
+Instead of sending to a physical audio device, invoke \fICOMMAND\fR using the
+shell and write audio samples to its standard input.
+Currently the input will be 44100KHz 16-bit signed stereo samples.
+If \fICOMMAND\fR exits it is re-executed; any samples that had been written to
+the pipe but not processed by the previous instance will be lost.
+.IP
+.B \-\-device
+is redundant with this option.
+.IP
+As an example,
+.B "-e \(aqcat > dump\(aq"
+would log audio data to a file for later processing.
+You could convert it to another format with, for instance:
+.IP
+.B "sox -c2 -traw -r44100 -s -w dump dump.wav"
.TP
.B \-\-config \fIPATH\fR, \fB\-C \fIPATH
Set the configuration file.
Only one connection at a time will be serviced.
.PP
This protocol is not guaranteed to be stable.
+.SH "DEVICE NAMES"
+.SS "Core Audio"
+On a Mac, the device name can either be the human-readable name of the desired
+output or its UID.
+To get a list of the human-readable names, visit System Preferences -> Sound;
+the Type column has the name you want.
+.PP
+For example, you might use "Built-in Output" for the built-in speaker
+or "Built-in Line Output" if you have connected external speakers.
+Remember to quote the name.
.SH "SEE ALSO"
.BR disobedience (1),
.BR disorder_config (5),
~mdw / disorder / blobdiff