Package flumotion :: Package component :: Package producers :: Package screencast :: Module screencast
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Source Code for Module flumotion.component.producers.screencast.screencast

 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 errors, gstreamer, messages 
19  from flumotion.component import feedcomponent 
20   
21  __version__ = "$Rev$" 
22   
23   
24 -class Screencast(feedcomponent.ParseLaunchComponent):
25
26 - def get_pipeline_string(self, properties):
27 28 def getProps(): 29 ret = [] 30 for k, default in (('width', 320), 31 ('height', 240), 32 ('x-offset', 0), 33 ('y-offset', 0), 34 ('framerate', (5, 1))): 35 ret.append(properties.get(k, default)) 36 return ret
37 width, height, x_offset, y_offset, framerate = getProps() 38 39 src = 'ximagesrc' 40 if not gstreamer.element_factory_exists(src): 41 raise errors.MissingElementError(src) 42 43 return ( 44 '%s startx=%d starty=%d endx=%d endy=%d use-damage=false' 45 ' ! ffmpegcolorspace' 46 ' ! video/x-raw-yuv,framerate=(fraction)%s,format=(fourcc)I420' 47 % (src, x_offset, y_offset, width + x_offset, height + y_offset, 48 '%d/%d' % framerate))
49