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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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e6830e1e57
Original commit message from CVS: * gst/gst.defs: gst.Bin constructor can take no arguments * testsuite/test_bin.py: add constructor tests * testsuite/test_element.py: add same link test with no pads
179 lines
6.2 KiB
Python
179 lines
6.2 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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import sys
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from common import gobject, gst, unittest, TestCase
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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, state_change):
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if state_change == gst.STATE_CHANGE_PAUSED_TO_PLAYING:
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self._state_changed = True
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# FIXME: it seems a vmethod increases the refcount without unreffing
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# print self.__gstrefcount__
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# print self.__grefcount__
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# chain up to parent
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return gst.Bin.do_change_state(self, state_change)
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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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# FIXME: fix leak in vmethods before removing overriding fixture
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class BinSubclassTest(TestCase):
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def setUp(self):
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pass
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def tearDown(self):
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pass
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def testStateChange(self):
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bin = MyBin("mybin")
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self.assertEquals(bin.__gstrefcount__, 1)
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self.assertEquals(sys.getrefcount(bin), 3)
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self.assertEquals(bin.get_name(), "mybin")
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self.assertEquals(bin.__gstrefcount__, 1)
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# test get_state with no timeout
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(ret, state, pending) = bin.get_state(None)
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self.failIfEqual(ret, gst.STATE_CHANGE_FAILURE)
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self.assertEquals(bin.__gstrefcount__, 1)
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# set to playing
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bin.set_state(gst.STATE_PLAYING)
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self.failUnless(bin._state_changed)
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# test get_state with no timeout
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(ret, state, pending) = bin.get_state(None)
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self.failIfEqual(ret, gst.STATE_CHANGE_FAILURE)
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if ret == gst.STATE_CHANGE_SUCCESS:
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self.assertEquals(state, gst.STATE_PLAYING)
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self.assertEquals(pending, gst.STATE_VOID_PENDING)
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# test get_state with a timeout
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(ret, state, pending) = bin.get_state(0.1)
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self.failIfEqual(ret, gst.STATE_CHANGE_FAILURE)
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if ret == gst.STATE_CHANGE_SUCCESS:
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self.assertEquals(state, gst.STATE_PLAYING)
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self.assertEquals(pending, gst.STATE_VOID_PENDING)
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(ret, state, pending) = bin.get_state(timeout=0.1)
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# back to NULL
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bin.set_state(gst.STATE_NULL)
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class BinAddRemove(TestCase):
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def setUp(self):
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TestCase.setUp(self)
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self.bin = gst.Bin('bin')
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def tearDown(self):
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del self.bin
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TestCase.tearDown(self)
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def testError(self):
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src = gst.element_factory_make('fakesrc', 'name')
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sink = gst.element_factory_make('fakesink', 'name')
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self.bin.add(src)
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self.assertRaises(gst.AddError, self.bin.add, sink)
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self.assertRaises(gst.AddError, self.bin.add, src)
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self.assertRaises(gst.RemoveError, self.bin.remove, sink)
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self.bin.remove(src)
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self.assertRaises(gst.RemoveError, self.bin.remove, src)
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def testMany(self):
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src = gst.element_factory_make('fakesrc')
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sink = gst.element_factory_make('fakesink')
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self.bin.add(src, sink)
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self.assertRaises(gst.AddError, self.bin.add, src, sink)
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self.bin.remove(src, sink)
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self.assertRaises(gst.RemoveError, self.bin.remove, src, sink)
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class Preroll(TestCase):
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def setUp(self):
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TestCase.setUp(self)
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self.bin = gst.Bin('bin')
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def tearDown(self):
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del self.bin
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TestCase.tearDown(self)
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def testFake(self):
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src = gst.element_factory_make('fakesrc')
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sink = gst.element_factory_make('fakesink')
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self.bin.add(src)
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# bin will go to paused, src pad task will start and error out
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self.bin.set_state(gst.STATE_PAUSED)
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ret = self.bin.get_state(timeout=None)
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self.assertEquals(ret[0], gst.STATE_CHANGE_SUCCESS)
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self.assertEquals(ret[1], gst.STATE_PAUSED)
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self.assertEquals(ret[2], gst.STATE_VOID_PENDING)
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# adding the sink will cause the bin to go in preroll mode
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gst.debug('adding sink and setting to PAUSED, should cause preroll')
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self.bin.add(sink)
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sink.set_state(gst.STATE_PAUSED)
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ret = self.bin.get_state(timeout=0.0)
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self.assertEquals(ret[0], gst.STATE_CHANGE_ASYNC)
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self.assertEquals(ret[1], gst.STATE_PAUSED)
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self.assertEquals(ret[2], gst.STATE_VOID_PENDING)
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# to actually complete preroll, we need to link and re-enable fakesrc
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src.set_state(gst.STATE_READY)
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src.link(sink)
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src.set_state(gst.STATE_PAUSED)
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ret = self.bin.get_state(timeout=None)
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self.assertEquals(ret[0], gst.STATE_CHANGE_SUCCESS)
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self.assertEquals(ret[1], gst.STATE_PAUSED)
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self.assertEquals(ret[2], gst.STATE_VOID_PENDING)
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self.bin.set_state(gst.STATE_NULL)
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self.bin.get_state(timeout=None)
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class ConstructorTest(TestCase):
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def testGood(self):
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bin = gst.Bin()
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bin = gst.Bin(None)
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bin = gst.Bin('')
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bin = gst.Bin('myname')
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def testBad(self):
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self.assertRaises(TypeError, gst.Bin, 0)
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self.assertRaises(TypeError, gst.Bin, gst.Bin())
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if __name__ == "__main__":
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unittest.main()
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