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 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 errors, gstreamer, messages 
23  from flumotion.component import feedcomponent 
24  from flumotion.component.effects.volume import volume 
25   
26  __version__ = "$Rev: 6695 $" 
27   
28   
29 -class Screencast(feedcomponent.ParseLaunchComponent):
30 - def get_pipeline_string(self, properties):
31 def getProps(): 32 ret = [] 33 for k, default in (('width', 320), 34 ('height', 240), 35 ('x-offset', 0), 36 ('y-offset', 0), 37 ('framerate', (5, 1))): 38 ret.append(properties.get(k, default)) 39 return ret
40 width, height, x_offset, y_offset, framerate = getProps() 41 42 src = 'ximagesrc' 43 if not gstreamer.element_factory_exists(src): 44 raise errors.MissingElementError(src) 45 46 return ('%s startx=%d starty=%d endx=%d endy=%d use-damage=false' 47 ' ! ffmpegcolorspace' 48 ' ! video/x-raw-yuv,framerate=(fraction)%s,format=(fourcc)I420' 49 % (src, x_offset, y_offset, width + x_offset, height + y_offset, 50 '%d/%d' % framerate))
51