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cb4e57360e
Original commit message from CVS: * testsuite/common.py: add a common.TestCase class that has methods to track and verify garbage collection of GstObject * testsuite/test_pad.py: use it
224 lines
7.7 KiB
Python
224 lines
7.7 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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#
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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 gst, unittest, TestCase
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import sys
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import gc
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class PadTemplateTest(TestCase):
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def setUp(self):
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self.gctrack()
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def tearDown(self):
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self.gccollect()
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self.gcverify()
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def testConstructor(self):
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template = gst.PadTemplate("template", gst.PAD_SINK,
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gst.PAD_ALWAYS, gst.caps_from_string("audio/x-raw-int"))
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self.failUnless(template)
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self.assertEquals(sys.getrefcount(template), 3)
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#self.assertEquals(template.__gstrefcount__, 1)
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class PadTest(TestCase):
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def setUp(self):
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self.gctrack()
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def tearDown(self):
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self.gccollect()
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self.gcverify()
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def testConstructor(self):
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# first style uses gst_pad_new
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gst.debug('creating pad with name src')
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pad = gst.Pad("src", gst.PAD_SRC)
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self.failUnless(pad)
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self.assertEquals(sys.getrefcount(pad), 3)
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self.assertEquals(pad.__gstrefcount__, 1)
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gst.debug('creating pad with no name')
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self.failUnless(gst.Pad(None, gst.PAD_SRC))
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self.failUnless(gst.Pad(name=None, direction=gst.PAD_SRC))
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self.failUnless(gst.Pad(direction=gst.PAD_SRC, name=None))
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self.failUnless(gst.Pad(direction=gst.PAD_SRC, name="src"))
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# second uses gst_pad_new_from_template
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#template = gst.PadTemplate()
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class PadPipelineTest(TestCase):
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def setUp(self):
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self.pipeline = gst.parse_launch('fakesrc name=source ! fakesink')
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src = self.pipeline.get_by_name('source')
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self.srcpad = src.get_pad('src')
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self.gctrack()
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def tearDown(self):
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del self.pipeline
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del self.srcpad
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self.gccollect()
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self.gcverify()
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# FIXME: now that GstQuery is a miniobject with various _new_ factory
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# functions, we need to figure out a way to deal with them in python
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# def testQuery(self):
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# assert self.sink.query(gst.QUERY_TOTAL, gst.FORMAT_BYTES) == -1
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# assert self.srcpad.query(gst.QUERY_POSITION, gst.FORMAT_BYTES) == 0
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# assert self.srcpad.query(gst.QUERY_POSITION, gst.FORMAT_TIME) == 0
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class PadProbeTest(TestCase):
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def setUp(self):
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self.gctrack()
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self.pipeline = gst.Pipeline()
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self.assertEquals(self.pipeline.__gstrefcount__, 1)
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self.assertEquals(sys.getrefcount(self.pipeline), 3)
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self.fakesrc = gst.element_factory_make('fakesrc')
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self.fakesink = gst.element_factory_make('fakesink')
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self.assertEquals(self.fakesrc.__gstrefcount__, 1)
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self.assertEquals(sys.getrefcount(self.fakesrc), 3)
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self.pipeline.add_many(self.fakesrc, self.fakesink)
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self.assertEquals(self.fakesrc.__gstrefcount__, 2) # added
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self.assertEquals(sys.getrefcount(self.fakesrc), 3)
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self.fakesrc.link(self.fakesink)
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self.assertEquals(self.pipeline.__gstrefcount__, 1)
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self.assertEquals(sys.getrefcount(self.pipeline), 3)
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self.assertEquals(self.fakesrc.__gstrefcount__, 2)
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self.assertEquals(sys.getrefcount(self.fakesrc), 3)
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def tearDown(self):
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self.assertEquals(self.pipeline.__gstrefcount__, 1)
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self.assertEquals(sys.getrefcount(self.pipeline), 3)
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self.assertEquals(self.fakesrc.__gstrefcount__, 2)
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self.assertEquals(sys.getrefcount(self.fakesrc), 3)
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gst.debug('deleting pipeline')
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del self.pipeline
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self.gccollect()
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self.assertEquals(self.fakesrc.__gstrefcount__, 1) # parent gone
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self.assertEquals(sys.getrefcount(self.fakesrc), 3)
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gst.debug('deleting fakesrc')
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del self.fakesrc
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self.gccollect()
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del self.fakesink
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self.gccollect()
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self.gcverify()
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def testFakeSrcProbeOnce(self):
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self.fakesrc.set_property('num-buffers', 1)
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pad = self.fakesrc.get_pad('src')
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id = pad.add_buffer_probe(self._probe_callback_fakesrc)
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self._got_fakesrc_buffer = 0
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self.pipeline.set_state(gst.STATE_PLAYING)
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while not self._got_fakesrc_buffer:
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pass
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self.pipeline.set_state(gst.STATE_NULL)
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pad.remove_buffer_probe (id)
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def testFakeSrcProbeMany(self):
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self.fakesrc.set_property('num-buffers', 1000)
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pad = self.fakesrc.get_pad('src')
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pad.add_buffer_probe(self._probe_callback_fakesrc)
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self._got_fakesrc_buffer = 0
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self.pipeline.set_state(gst.STATE_PLAYING)
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while not self._got_fakesrc_buffer == 1000:
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pass
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self.pipeline.set_state(gst.STATE_NULL)
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def _probe_callback_fakesrc(self, pad, buffer):
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self.failUnless(isinstance(pad, gst.Pad))
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self.failUnless(isinstance(buffer, gst.Buffer))
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self._got_fakesrc_buffer += 1
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def testRemovingProbe(self):
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self.fakesrc.set_property('num-buffers', 10)
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handle = None
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self._num_times_called = 0
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def buffer_probe(pad, buffer):
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self._num_times_called += 1
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pad.remove_buffer_probe(handle)
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return True
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pad = self.fakesrc.get_pad('src')
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handle = pad.add_buffer_probe(buffer_probe)
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self.pipeline.set_state(gst.STATE_PLAYING)
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m = self.pipeline.get_bus().poll(gst.MESSAGE_EOS, -1)
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assert m
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assert self._num_times_called == 1
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self.pipeline.set_state(gst.STATE_NULL)
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# FIXME: having m going out of scope doesn't seem to be enough
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# to get it gc collected, and it keeps a ref to the pipeline.
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# Look for a way to not have to do this explicitly
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del m
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self.gccollect()
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class PadRefCountTest(TestCase):
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def setUp(self):
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self.gctrack()
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def tearDown(self):
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self.gccollect()
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self.gcverify()
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def testAddPad(self):
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# add a pad to an element
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e = gst.element_factory_make('fakesrc')
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self.assertEquals(sys.getrefcount(e), 3)
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self.assertEquals(e.__gstrefcount__, 1)
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gst.debug('creating pad with name mypad')
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pad = gst.Pad("mypad", gst.PAD_SRC)
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self.failUnless(pad)
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self.assertEquals(sys.getrefcount(pad), 3)
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self.assertEquals(pad.__gstrefcount__, 1)
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gst.debug('adding pad to element')
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e.add_pad(pad)
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self.assertEquals(sys.getrefcount(e), 3)
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self.assertEquals(e.__gstrefcount__, 1)
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self.assertEquals(sys.getrefcount(pad), 3)
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self.assertEquals(pad.__gstrefcount__, 2) # added to element
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gst.debug('deleting element and collecting')
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gc.collect()
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del e
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self.assertEquals(gc.collect(), 1) # collected the element
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self.assertEquals(sys.getrefcount(pad), 3)
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self.assertEquals(pad.__gstrefcount__, 1) # removed from element
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gst.debug('deleting pad and collecting')
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del pad
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self.assertEquals(gc.collect(), 1) # collected the pad
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gst.debug('going into teardown')
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if __name__ == "__main__":
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unittest.main()
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