Package flumotion :: Package component :: Package combiners :: Package composite :: Module composite
[hide private]

Source Code for Module flumotion.component.combiners.composite.composite

 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.component import feedcomponent 
23   
24  __version__ = "$Rev: 6125 $" 
25   
26   
27 -class Composite(feedcomponent.MultiInputParseLaunchComponent):
28 logCategory = 'comb-composite' 29
30 - def init(self):
31 self._pad_names = {} 32 self._stream_props = {}
33
34 - def _parse_stream_props(self, properties):
35 props = self._stream_props 36 config = properties.get('input', []) 37 38 for fp in config: 39 fname = fp['feeder-alias'] 40 props[fname] = dict(xpos=fp.get('position-left', 0), 41 ypos=fp.get('position-top', 0), 42 zorder=fp.get('z-order', None), 43 alpha=fp.get('alpha', 1.0))
44
45 - def get_pipeline_string(self, properties):
46 self._parse_stream_props(properties) 47 48 # naming ffmpegcsp elements so we can easier identify mixer pads 49 etmpl = '@ eater:%s @ ! ffmpegcolorspace name=csc-%s ! mixer. ' 50 pipeline = ('videomixer name=mixer %s mixer.' % 51 ' '.join([etmpl % (a, a) for a in self.eaters])) 52 return pipeline
53
54 - def configure_pipeline(self, pipeline, properties):
55 mixer = pipeline.get_by_name('mixer') 56 57 for p in mixer.sink_pads(): 58 # get the coresponding ffmpegcsp's name and strip the 59 # 'csc-' prefix 60 peername = p.get_peer().get_parent().get_name()[4:] 61 if peername in self.eaters: 62 self._pad_names[peername] = p.get_name() 63 64 cfg = self._stream_props.get(peername, None) 65 if cfg: 66 for k, v in cfg.items(): 67 if v is not None: 68 p.set_property(k, v)
69