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 Fluendo, S.L. (www.fluendo.com). 
 6  # All rights reserved. 
 7   
 8  # This file may be distributed and/or modified under the terms of 
 9  # the GNU General Public License version 2 as published by 
10  # the Free Software Foundation. 
11  # This file is distributed without any warranty; without even the implied 
12  # warranty of merchantability or fitness for a particular purpose. 
13  # See "LICENSE.GPL" in the source distribution for more information. 
14   
15  # Licensees having purchased or holding a valid Flumotion Advanced 
16  # Streaming Server license may use this file in accordance with the 
17  # Flumotion Advanced Streaming Server Commercial License Agreement. 
18  # See "LICENSE.Flumotion" in the source distribution for more information. 
19   
20  # Headers in this file shall remain intact. 
21   
22  from flumotion.common import gstreamer, messages, errors 
23  from flumotion.common.i18n import N_, gettexter 
24  from flumotion.component import feedcomponent 
25   
26  T_ = gettexter() 
27  __version__ = "$Rev: 6695 $" 
28   
29   
30 -class Repeater(feedcomponent.ParseLaunchComponent):
31 - def get_pipeline_string(self, properties):
32 dp = "" 33 if 'drop-probability' in properties: 34 vt = gstreamer.get_plugin_version('coreelements') 35 if not vt: 36 raise errors.MissingElementError('identity') 37 if not vt > (0, 10, 12, 0): 38 self.addMessage( 39 messages.Warning(T_(N_( 40 "The 'drop-probability' property is specified, but " 41 "it only works with GStreamer core newer than 0.10.12. " 42 "You should update your version of GStreamer.")))) 43 else: 44 drop_probability = properties['drop-probability'] 45 if drop_probability < 0.0 or drop_probability > 1.0: 46 self.addMessage( 47 messages.Warning(T_(N_( 48 "The 'drop-probability' property can only be " 49 "between 0.0 and 1.0.")))) 50 else: 51 dp = " drop-probability=%f" % drop_probability 52 53 return 'identity silent=true %s' % dp
54