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# vi:si:et:sw=4:sts=4:ts=4
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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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# 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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# 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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# 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, testhelper, TestCase
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class EventTest(TestCase):
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self.pipeline = gst.parse_launch('fakesrc ! fakesink name=sink')
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self.sink = self.pipeline.get_by_name('sink')
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self.pipeline.set_state(gst.STATE_PLAYING)
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gst.debug('setting pipeline to NULL')
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self.pipeline.set_state(gst.STATE_NULL)
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gst.debug('set pipeline to NULL')
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# FIXME: wait for state change thread to die
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while self.pipeline.__gstrefcount__ > 1:
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gst.debug('waiting for self.pipeline G rc to drop to 1')
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self.assertEquals(self.pipeline.__gstrefcount__, 1)
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TestCase.tearDown(self)
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def testEventSeek(self):
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# this event only serves to change the rate of data transfer
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event = gst.event_new_seek(1.0, gst.FORMAT_BYTES, gst.SEEK_FLAG_FLUSH,
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gst.SEEK_TYPE_NONE, 0, gst.SEEK_TYPE_NONE, 0)
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# FIXME: but basesrc goes into an mmap/munmap spree, needs to be fixed
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event = gst.event_new_seek(1.0, gst.FORMAT_BYTES, gst.SEEK_FLAG_FLUSH,
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gst.SEEK_TYPE_SET, 0, gst.SEEK_TYPE_NONE, 0)
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gst.debug('sending event')
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self.sink.send_event(event)
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gst.debug('sent event')
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self.assertEqual(event.parse_seek(), [1.0, gst.FORMAT_BYTES, gst.SEEK_FLAG_FLUSH,
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gst.SEEK_TYPE_SET, 0, gst.SEEK_TYPE_NONE, 0])
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def testWrongEvent(self):
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self.assertRaises(TypeError, self.sink.send_event, buffer)
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self.assertRaises(TypeError, self.sink.send_event, number)
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class EventFileSrcTest(TestCase):
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self.filename = tempfile.mktemp()
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open(self.filename, 'w').write(''.join(map(str, range(10))))
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self.pipeline = gst.parse_launch('filesrc name=source location=%s blocksize=1 ! fakesink signal-handoffs=1 name=sink' % self.filename)
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self.source = self.pipeline.get_by_name('source')
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self.sink = self.pipeline.get_by_name('sink')
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self.sigid = self.sink.connect('handoff', self.handoff_cb)
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self.bus = self.pipeline.get_bus()
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self.pipeline.set_state(gst.STATE_NULL)
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self.sink.disconnect(self.sigid)
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if os.path.exists(self.filename):
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os.remove(self.filename)
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TestCase.tearDown(self)
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def handoff_cb(self, element, buffer, pad):
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self.handoffs.append(str(buffer))
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def playAndIter(self):
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self.pipeline.set_state(gst.STATE_PLAYING)
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assert self.pipeline.set_state(gst.STATE_PLAYING)
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if msg and msg.type == gst.MESSAGE_EOS:
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assert self.pipeline.set_state(gst.STATE_PAUSED)
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handoffs = self.handoffs
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def sink_seek(self, offset, method=gst.SEEK_TYPE_SET):
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self.sink.seek(1.0, gst.FORMAT_BYTES, gst.SEEK_FLAG_FLUSH,
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gst.SEEK_TYPE_NONE, 0)
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def testSimple(self):
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handoffs = self.playAndIter()
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assert handoffs == map(str, range(10))
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def testSeekCur(self):
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class TestEmit(TestCase):
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object = testhelper.get_object()
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object.connect('event', self._event_cb)
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testhelper.emit_event(object)
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# Then emit from Python
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object.emit('event', gst.event_new_eos())
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def _event_cb(self, obj, event):
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assert isinstance(event, gst.Event)
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class TestDelayedEventProbe(TestCase):
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# starts a pipeline with only a source
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# adds an event probe to catch the (first) new-segment
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# adds a buffer probe to "autoplug" and send out this event
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self.pipeline = gst.Pipeline()
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self.src = gst.element_factory_make('fakesrc')
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self.src.set_property('num-buffers', 10)
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self.pipeline.add(self.src)
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self.srcpad = self.src.get_pad('src')
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gst.debug('setting pipeline to NULL')
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self.pipeline.set_state(gst.STATE_NULL)
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gst.debug('set pipeline to NULL')
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# FIXME: wait for state change thread to die
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while self.pipeline.__gstrefcount__ > 1:
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gst.debug('waiting for self.pipeline G rc to drop to 1')
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self.assertEquals(self.pipeline.__gstrefcount__, 1)
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self.srcpad.add_event_probe(self._event_probe_cb)
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self._buffer_probe_id = self.srcpad.add_buffer_probe(
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self._buffer_probe_cb)
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self._newsegment = None
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self._had_buffer = False
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self.pipeline.set_state(gst.STATE_PLAYING)
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# verify if our newsegment event is still around and valid
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self.failUnless(self._newsegment)
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self.assertEquals(self._newsegment.type, gst.EVENT_NEWSEGMENT)
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self.assertEquals(self._newsegment.__grefcount__, 1)
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# verify if our eos event is still around and valid
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self.failUnless(self._eos)
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self.assertEquals(self._eos.type, gst.EVENT_EOS)
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self.assertEquals(self._eos.__grefcount__, 1)
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def _event_probe_cb(self, pad, event):
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if event.type == gst.EVENT_NEWSEGMENT:
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self._newsegment = event
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self.assertEquals(event.__grefcount__, 3)
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# drop the event, we're storing it for later sending
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if event.type == gst.EVENT_EOS:
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# we also want fakesink to get it
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self.fail("Got an unknown event %r" % event)
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def _buffer_probe_cb(self, pad, buffer):
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self.failUnless(self._newsegment)
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# fake autoplugging by now putting in a fakesink
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sink = gst.element_factory_make('fakesink')
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self.pipeline.add(sink)
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sink.set_state(gst.STATE_PLAYING)
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pad = sink.get_pad('sink')
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pad.send_event(self._newsegment)
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# we don't want to be called again
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self.srcpad.remove_buffer_probe(self._buffer_probe_id)
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self._had_buffer = True
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# now let the buffer through
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if __name__ == "__main__":
added
removed
testsuite/test_event.py
