2 .\" Copyright (C) 2007-2009, 2013 Richard Kettlewell
4 .\" This program is free software: you can redistribute it and/or modify
5 .\" it under the terms of the GNU General Public License as published by
6 .\" the Free Software Foundation, either version 3 of the License, or
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10 .\" but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 .\" GNU General Public License for more details.
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15 .\" along with this program. If not, see <http://www.gnu.org/licenses/>.
17 .TH disorder-playrtp 1
19 disorder-playrtp \- play DisOrder network broadcasts
27 \fBdisorder\-playrtp\fR plays a network broadcast sent from the specified
30 If neither an address nor port are specified then the local DisOrder
31 configuration is consulted to find the server and the server is asked where the
34 If just a port is specified then the RTP stream is assumed to be unicast or
35 broadcast to that port.
37 If an address and a port are specified then the RTP stream is assumed to be
38 multicast to that group address and port.
41 .B \-\-api\fR, -\fB-A\fR \fIAPI\fR
42 Select the playback API.
43 The possibilities are, depending on platform and compilation options:
61 Pipe audio to a command.
64 The default is the first of the possibilities above that is supported.
66 .B \-\-device \fIDEVICE\fR, \fB\-D \fIDEVICE\fR
67 Specifies the audio device to use.
70 below for more information.
72 .B \-\-command \fICOMMAND\fR, \fB-e \fICOMMAND\fR
73 Instead of sending to a physical audio device, invoke \fICOMMAND\fR using the
74 shell and write audio samples to its standard input.
75 Currently the input will be 44100KHz 16-bit signed stereo samples.
76 If \fICOMMAND\fR exits it is re-executed; any samples that had been written to
77 the pipe but not processed by the previous instance will be lost.
80 is redundant with this option, but you might want to set
84 .B "-e \(aqcat > dump\(aq"
85 would log audio data to a file for later processing.
86 You could convert it to another format with, for instance:
88 .B "sox -c2 -traw -r44100 -s -w dump dump.wav"
90 .B \-\-pause\-mode \fIMODE\fR, \fB-P \fIMODE
91 Set the pause mode for \fB\-\-command\fR to either \fBsilence\fR (the default), in
92 which pauses are represented by sending silent samples, or \fBsuspend\fR, in which
93 writes to the subprocess are suspended, requiring it to infer a pause from flow
96 .B \-\-config \fIPATH\fR, \fB\-C \fIPATH
97 Set the configuration file.
99 .IR pkgconfdir/config .
101 .B \-\-socket \fIPATH\fR, \fB\-s \fIPATH
102 Set the control socket.
103 Normally this would not be used manually.
105 .B \-\-help\fR, \fB\-h
106 Display a usage message.
108 .B \-\-version\fR, \fB\-V
109 Display version number.
110 .SS "Buffer Control Options"
111 You shouldn't need to use these options.
112 Their effects are subject to change between version without warning.
113 You should consult the source code for details of their effects.
115 .B \-\-min \fIFRAMES\fR, \fB\-m \fIFRAMES\fR
116 Specifies the buffer low watermark in frames.
117 This also acts as the target buffer occupancy.
119 .B \-\-max \fIFRAMES\fR, \fB\-x \fIFRAMES\fR
120 Specifies the maximum buffer size in frames.
121 If there are this many frames in the buffer then reading from the
122 network socket will be suspended.
123 The default is twice the \fB\-\-min\fR value.
125 .B \-\-rcvbuf \fIBYTES\fR, \fB\-R \fIBYTES\fR
126 Specifies socket receive buffer size.
127 The default is not to change the buffer size, i.e. you get whatever the
128 local operating system chooses.
129 The buffer size will not be reduced below the operating system's default.
131 .B \-\-monitor\fR, \fB\-M
132 Periodically report how close to the buffer low watermark the buffer is.
133 If you have trouble with poor playback quality, enable this option to see if
134 the buffer is emptying out (or overfilling, though there are measures to
135 prevent that from happening).
136 .SS "Deprecated Options"
137 These options may be removed in a future version.
138 Use \fB\-\-api\fR instead.
140 .B \-\-alsa\fR, \fB\-a
141 Use ALSA to play sound.
142 Only available on Linux.
144 .B \-\-oss\fR, \fB\-o
145 Use OSS to play sound.
146 Only available on Linux and FreeBSD.
148 .B \-\-core\-audio\fR, \fB\-c
149 Use Core Audio to play sound.
150 Only available on Macs.
154 option is used by Disobedience to control a background
157 The socket will be created as a UNIX domain stream socket.
158 When a connection is received a single line is read from it.
159 The following commands are known:
167 Causes the string "running" to be sent back.
170 Print the left and right volume levels,
171 as two decimal integers between 0 and 100,
172 separated by a space.
174 .BI "setvol " left " " right
175 Set the left and right volume levels to the given decimal values,
176 which should be between 0 and 100;
177 echo back the new values as for
181 Other commands are ignored.
182 After the first command the connection is closed.
183 Only one connection at a time will be serviced.
185 This protocol is not guaranteed to be stable.
188 On a Mac, the device name can either be the human-readable name of the desired
190 To get a list of the human-readable names, visit System Preferences -> Sound;
191 the Type column has the name you want.
193 For example, you might use "Built-in Output" for the built-in speaker
194 or "Built-in Line Output" if you have connected external speakers.
195 Remember to quote the name.
197 .BR disobedience (1),
198 .BR disorder_config (5),