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f756328c1a
Original commit message from CVS: add an example of a bin that overrides the change_state vmethod
53 lines
1.9 KiB
Python
53 lines
1.9 KiB
Python
# -*- Mode: Python -*-
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# vi:si:et:sw=4:sts=4:ts=4
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#
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# gst-python - Python bindings for GStreamer
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# Copyright (C) 2002 David I. Lehn
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# Copyright (C) 2004 Johan Dahlin
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# Copyright (C) 2005 Edward Hervey
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# Copyright (C) 2005 Thomas Vander Stichele
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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from common import gobject, gst, unittest
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# see
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# http://www.sicem.biz/personal/lgs/docs/gobject-python/gobject-tutorial.html
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class MyBin(gst.Bin):
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_state_changed = False
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def __init__(self, name):
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# we need to call GObject's init to be able to do self.do_*
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gobject.GObject.__init__(self)
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# since we can't chain up to our parent's __init__, we set the
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# name manually
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self.set_property('name', name)
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def do_change_state(self):
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self._state_changed = True
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# chain up to parent
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return gst.Bin.do_change_state(self)
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# we need to register the type for PyGTK < 2.8
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gobject.type_register(MyBin)
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class BinSubclassTest(unittest.TestCase):
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def testStateChange(self):
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bin = MyBin("mybin")
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self.assertEquals(bin.get_name(), "mybin")
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bin.set_state(gst.STATE_PLAYING)
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self.failUnless(bin._state_changed)
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if __name__ == "__main__":
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unittest.main()
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