Package flumotion :: Package component :: Package misc :: Package repeater :: Module repeater
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Source Code for Module flumotion.component.misc.repeater.repeater

 1  # -*- Mode: Python -*- 
 2  # vi:si:et:sw=4:sts=4:ts=4 
 3   
 4  # Flumotion - a streaming media server 
 5  # Copyright (C) 2004,2005,2006,2007,2008,2009 Fluendo, S.L. 
 6  # Copyright (C) 2010,2011 Flumotion Services, S.A. 
 7  # All rights reserved. 
 8  # 
 9  # This file may be distributed and/or modified under the terms of 
10  # the GNU Lesser General Public License version 2.1 as published by 
11  # the Free Software Foundation. 
12  # This file is distributed without any warranty; without even the implied 
13  # warranty of merchantability or fitness for a particular purpose. 
14  # See "LICENSE.LGPL" in the source distribution for more information. 
15  # 
16  # Headers in this file shall remain intact. 
17   
18  from flumotion.common import gstreamer, messages, errors 
19  from flumotion.common.i18n import N_, gettexter 
20  from flumotion.component import feedcomponent 
21   
22  T_ = gettexter() 
23  __version__ = "$Rev$" 
24   
25   
26 -class Repeater(feedcomponent.ParseLaunchComponent):
27
28 - def get_pipeline_string(self, properties):
29 dp = "" 30 if 'drop-probability' in properties: 31 vt = gstreamer.get_plugin_version('coreelements') 32 if not vt: 33 raise errors.MissingElementError('identity') 34 if not vt > (0, 10, 12, 0): 35 self.addMessage( 36 messages.Warning(T_(N_( 37 "The 'drop-probability' property is specified, but " 38 "it only works with GStreamer core newer than 0.10.12." 39 " You should update your version of GStreamer.")))) 40 else: 41 drop_probability = properties['drop-probability'] 42 if drop_probability < 0.0 or drop_probability > 1.0: 43 self.addMessage( 44 messages.Warning(T_(N_( 45 "The 'drop-probability' property can only be " 46 "between 0.0 and 1.0.")))) 47 else: 48 dp = " drop-probability=%f" % drop_probability 49 50 return 'identity silent=true %s' % dp
51