'\" t
.\"     Title: sydra
.\"    Author: [see the "AUTHORS" section]
.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
.\"      Date: 10/02/2014
.\"    Manual: \ \&
.\"    Source: \ \&
.\"  Language: English
.\"
.TH "SYDRA" "8" "10/02/2014" "\ \&" "\ \&"
.\" -----------------------------------------------------------------
.\" * Define some portability stuff
.\" -----------------------------------------------------------------
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.\" http://bugs.debian.org/507673
.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.ie \n(.g .ds Aq \(aq
.el       .ds Aq '
.\" -----------------------------------------------------------------
.\" * set default formatting
.\" -----------------------------------------------------------------
.\" disable hyphenation
.nh
.\" disable justification (adjust text to left margin only)
.ad l
.\" -----------------------------------------------------------------
.\" * MAIN CONTENT STARTS HERE *
.\" -----------------------------------------------------------------
.SH "NAME"
sydra \- toolbox for RTP based streams
.SH "SYNOPSIS"
.sp
.nf
\fBsydra\fR
  [ \fB\-h|\-\-help\fR ]
  [ \fB\-D|\-\-nodaemonize\fR ]
  [ \fB\-u|\-\-username\fR <username> ]
  [ \fB\-g|\-\-groupname\fR <groupname> ]
  [ \fB\-C|\-\-chroot\fR <path> ]
  [ \fB\-P|\-\-write\-pid\fR <filename> ]
  [ \fB\-L|\-\-log\fR <target>:<level>[,<param1>[,<param2>[\&.\&.]]] ]
  [ \fB\-U|\-\-debug\fR ]
.fi
.SH "DESCRIPTION"
.sp
\fBsydra\fR is a toolbox which allows you to set up multiple bidirectional Video/Audio streams from external locations\&. \fBsydra\fR has been written to be used for the Elevate Festival in Graz Austria in order to involve external locations to present themselves at the festival\&. \fBSydra\fR is based on GStreamer and is written in C\&.
.SH "OPTIONS"
.sp
The following options can be passed to the \fBsydra\fR daemon:
.PP
\fB\-D, \-\-nodaemonize\fR
.RS 4
This option instructs
\fBsydra\fR
to run in foreground instead of becoming a daemon which is the default\&.
.RE
.PP
\fB\-u, \-\-username <username>\fR
.RS 4
run as this user\&. If no group is specified (\fB\-g\fR) the default group of the user is used\&. The default is to not drop privileges\&.
.RE
.PP
\fB\-g, \-\-groupname <groupname>\fR
.RS 4
run as this group\&. If no username is specified (\fB\-u\fR) this gets ignored\&. The default is to not drop privileges\&.
.RE
.PP
\fB\-C, \-\-chroot <path>\fR
.RS 4
Instruct
\fBsydra\fR
to run in a chroot jail\&. The default is to not run in chroot\&.
.RE
.PP
\fB\-P, \-\-write\-pid <filename>\fR
.RS 4
Instruct
\fBsydra\fR
to write it\(cqs pid to this file\&. The default is to not create a pid file\&.
.RE
.PP
\fB\-L, \-\-log <target>:<level>[,<param1>[,<param2>[\&.\&.]]]\fR
.RS 4
add log target to logging system\&. This can be invoked several times in order to log to different targets at the same time\&. Every target has its own log level which is a number between 0 and 5\&. Where 0 means disabling log and 5 means debug messages are enabled\&.

The file target can be used more than once with different levels\&. If no target is provided at the command line a single target with the config
\fBsyslog:3,sydra,daemon\fR
is added\&.

The following targets are supported:
.PP
\fBsyslog\fR
.RS 4
log to syslog daemon, parameters <level>[,<logname>[,<facility>]]
.RE
.PP
\fBfile\fR
.RS 4
log to file, parameters <level>[,<path>]
.RE
.PP
\fBstdout\fR
.RS 4
log to standard output, parameters <level>
.RE
.PP
\fBstderr\fR
.RS 4
log to standard error, parameters <level>
.RE
.RE
.PP
\fB\-U, \-\-debug\fR
.RS 4
This option instructs
\fBsydra\fR
to run in debug mode\&. It implicits
\fB\-D\fR
(don\(cqt daemonize) and adds a log target with the configuration
\fBstdout:5\fR
(logging with maximum level)\&. In future releases there might be additional output when this option is supplied\&.
.RE
.SH "BUGS"
.sp
Most likely there are some bugs in \fBsydra\fR\&. If you find a bug, please let the developers know at equinox@spreadspace\&.org\&. Of course, patches are preferred\&.
.SH "SEE ALSO"
.sp
\fBstrftime\fR(3), \fBgst\-launch\fR(1)
.SH "AUTHORS"
.sp
Christian Pointner <equinox@spreadspace\&.org>
.SH "COPYING"
.sp
Copyright (C) 2014 Christian Pointner\&. 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 3 of the License, or any later version\&.