Source Code for Module flumotion.component.encoders.vorbis.wizard_gtk

  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 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  import gettext 
 23  import os 
 24   
 25  from zope.interface import implements 
 26   
 27  from flumotion.wizard.basesteps import AudioEncoderStep 
 28  from flumotion.wizard.interfaces import IEncoderPlugin 
 29  from flumotion.wizard.models import AudioEncoder 
 30   
 31  __version__ = "$Rev: 6765 $" 
 32  _ = gettext.gettext 
 33   
 34   
 35 -class VorbisAudioEncoder(AudioEncoder): 
 36      componentType = 'vorbis-encoder' 
 37 -    def __init__(self): 
 38          super(VorbisAudioEncoder, self).__init__() 
 39          self.has_bitrate = True 
 40          self.has_quality = False 
 41   
 42          self.properties.bitrate = 64 
 43          self.properties.quality = 0.5 
 44   
 45 -    def getProperties(self): 
 46          properties = super(VorbisAudioEncoder, self).getProperties() 
 47          if self.has_bitrate: 
 48              del properties.quality 
 49              properties.bitrate *= 1000 
 50          elif self.has_quality: 
 51              del properties.bitrate 
 52          else: 
 53              raise AssertionError 
 54   
 55          return properties 
 56   
 57   
 58 -class VorbisStep(AudioEncoderStep): 
 59      name = 'Vorbis encoder' 
 60      title = _('Vorbis encoder') 
 61      sidebarName = _('Vorbis') 
 62      icon = 'xiphfish.png' 
 63      gladeFile = os.path.join(os.path.dirname(os.path.abspath(__file__)), 
 64                                'wizard.glade') 
 65      componentType = 'vorbis' 
 66   
 67      # WizardStep 
 68   
 69 -    def setup(self): 
 70          self.has_bitrate.data_type = bool 
 71          self.has_quality.data_type = bool 
 72          self.bitrate.data_type = int 
 73          self.quality.data_type = float 
 74   
 75          self.add_proxy(self.model, 
 76                         ['has_quality', 'has_bitrate']) 
 77          self.add_proxy(self.model.properties, 
 78                         ['bitrate', 'quality']) 
 79   
 80 -    def workerChanged(self, worker): 
 81          self.model.worker = worker 
 82   
 83          def hasVorbis(unused, worker): 
 84              self.wizard.runInWorker( 
 85                  worker, 'flumotion.worker.checks.encoder', 'checkVorbis') 
 86   
 87          self.wizard.debug('running Vorbis checks') 
 88          d = self.wizard.requireElements(worker, 'vorbisenc') 
 89          d.addCallback(hasVorbis, worker) 
 90   
 91      # Callbacks 
 92   
 93 -    def on_radiobutton_toggled(self, button): 
 94          # This is bound to both radiobutton_bitrate and radiobutton_quality 
 95          self.bitrate.set_sensitive(self.has_bitrate.get_active()) 
 96          self.quality.set_sensitive(self.has_quality.get_active()) 
 97   
 98   
 99 -class VorbisWizardPlugin(object): 
100      implements(IEncoderPlugin) 
101 -    def __init__(self, wizard): 
102          self.wizard = wizard 
103          self.model = VorbisAudioEncoder() 
104   
105 -    def getConversionStep(self): 
106          return VorbisStep(self.wizard, self.model) 
107