mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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569 lines
22 KiB
Python
569 lines
22 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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from common import gst, unittest, TestCase, pygobject_2_13
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import sys
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import time
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class PadTemplateTest(TestCase):
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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), pygobject_2_13 and 2 or 3)
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#self.assertEquals(template.__gstrefcount__, 1)
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class PadPushUnlinkedTest(TestCase):
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def setUp(self):
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TestCase.setUp(self)
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self.src = gst.Pad("src", gst.PAD_SRC)
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self.sink = gst.Pad("sink", gst.PAD_SINK)
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def tearDown(self):
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self.assertEquals(sys.getrefcount(self.src), pygobject_2_13 and 2 or 3)
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self.assertEquals(self.src.__gstrefcount__, 1)
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del self.src
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self.assertEquals(sys.getrefcount(self.sink), pygobject_2_13 and 2 or 3)
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self.assertEquals(self.sink.__gstrefcount__, 1)
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del self.sink
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TestCase.tearDown(self)
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def testNoProbe(self):
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self.buffer = gst.Buffer()
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self.assertEquals(self.buffer.__grefcount__, 1)
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self.assertEquals(self.src.push(self.buffer), gst.FLOW_NOT_LINKED)
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# pushing it takes a ref in the python wrapper to keep buffer
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# alive afterwards; but the core unrefs the ref it receives
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self.assertEquals(self.buffer.__grefcount__, 1)
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def testFalseProbe(self):
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id = self.src.add_buffer_probe(self._probe_handler, False)
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self.buffer = gst.Buffer()
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self.assertEquals(self.buffer.__grefcount__, 1)
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self.assertEquals(self.src.push(self.buffer), gst.FLOW_OK)
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self.assertEquals(self.buffer.__grefcount__, 1)
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self.src.remove_buffer_probe(id)
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def testTrueProbe(self):
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id = self.src.add_buffer_probe(self._probe_handler, True)
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self.buffer = gst.Buffer()
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self.assertEquals(self.buffer.__grefcount__, 1)
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self.assertEquals(self.src.push(self.buffer), gst.FLOW_NOT_LINKED)
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self.assertEquals(self.buffer.__grefcount__, 1)
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self.src.remove_buffer_probe(id)
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def _probe_handler(self, pad, buffer, ret):
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return ret
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class PadPushLinkedTest(TestCase):
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def setUp(self):
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TestCase.setUp(self)
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self.src = gst.Pad("src", gst.PAD_SRC)
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self.sink = gst.Pad("sink", gst.PAD_SINK)
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caps = gst.caps_from_string("foo/bar")
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self.src.set_caps(caps)
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self.sink.set_caps(caps)
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self.sink.set_chain_function(self._chain_func)
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self.src.set_active(True)
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self.sink.set_active(True)
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self.src.link(self.sink)
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self.buffers = []
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def tearDown(self):
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self.assertEquals(sys.getrefcount(self.src), pygobject_2_13 and 2 or 3)
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self.assertEquals(self.src.__gstrefcount__, 1)
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self.src.set_caps(None)
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del self.src
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self.assertEquals(sys.getrefcount(self.sink), pygobject_2_13 and 2 or 3)
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self.assertEquals(self.sink.__gstrefcount__, 1)
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self.sink.set_caps(None)
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del self.sink
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TestCase.tearDown(self)
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def _chain_func(self, pad, buffer):
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gst.debug('got buffer %r, id %x, with GMO rc %d'% (
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buffer, id(buffer), buffer.__grefcount__))
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self.buffers.append(buffer)
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return gst.FLOW_OK
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def testNoProbe(self):
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self.buffer = gst.Buffer()
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gst.debug('created new buffer %r, id %x' % (
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self.buffer, id(self.buffer)))
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self.assertEquals(self.buffer.__grefcount__, 1)
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gst.debug('pushing buffer on linked pad, no probe')
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self.assertEquals(self.src.push(self.buffer), gst.FLOW_OK)
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gst.debug('pushed buffer on linked pad, no probe')
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# one refcount is held by our scope, another is held on
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# self.buffers through _chain_func
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self.assertEquals(self.buffer.__grefcount__, 2)
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self.assertEquals(len(self.buffers), 1)
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self.buffers = None
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self.assertEquals(self.buffer.__grefcount__, 1)
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def testFalseProbe(self):
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id = self.src.add_buffer_probe(self._probe_handler, False)
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self.buffer = gst.Buffer()
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self.assertEquals(self.buffer.__grefcount__, 1)
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self.assertEquals(self.src.push(self.buffer), gst.FLOW_OK)
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self.assertEquals(self.buffer.__grefcount__, 1)
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self.src.remove_buffer_probe(id)
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self.assertEquals(len(self.buffers), 0)
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def testTrueProbe(self):
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probe_id = self.src.add_buffer_probe(self._probe_handler, True)
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self.buffer = gst.Buffer()
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self.assertEquals(self.buffer.__grefcount__, 1)
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self.assertEquals(self.src.push(self.buffer), gst.FLOW_OK)
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# one refcount is held by our scope, another is held on
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# self.buffers through _chain_func
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self.assertEquals(self.buffer.__grefcount__, 2)
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# they are not the same Python object ...
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self.failIf(self.buffer is self.buffers[0])
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self.failIf(id(self.buffer) == id(self.buffers[0]))
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# ... but they wrap the same GstBuffer
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self.failUnless(self.buffer == self.buffers[0])
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self.assertEquals(repr(self.buffer), repr(self.buffers[0]))
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self.src.remove_buffer_probe(probe_id)
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self.assertEquals(len(self.buffers), 1)
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self.buffers = None
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self.assertEquals(self.buffer.__grefcount__, 1)
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def _probe_handler(self, pad, buffer, ret):
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return ret
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# test for event probes with linked pads
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class PadPushEventLinkedTest(TestCase):
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def setUp(self):
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TestCase.setUp(self)
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self.src = gst.Pad("src", gst.PAD_SRC)
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self.sink = gst.Pad("sink", gst.PAD_SINK)
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caps = gst.caps_from_string("foo/bar")
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self.src.set_caps(caps)
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self.sink.set_caps(caps)
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self.sink.set_chain_function(self._chain_func)
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self.src.set_active(True)
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self.sink.set_active(True)
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self.src.link(self.sink)
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self.events = []
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def tearDown(self):
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self.assertEquals(sys.getrefcount(self.src), pygobject_2_13 and 2 or 3)
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self.assertEquals(self.src.__gstrefcount__, 1)
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self.src.set_caps(None)
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del self.src
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self.assertEquals(sys.getrefcount(self.sink), pygobject_2_13 and 2 or 3)
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self.assertEquals(self.sink.__gstrefcount__, 1)
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self.sink.set_caps(None)
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del self.sink
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TestCase.tearDown(self)
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def _chain_func(self, pad, buffer):
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gst.debug('got buffer %r, id %x, with GMO rc %d'% (
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buffer, id(buffer), buffer.__grefcount__))
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self.buffers.append(buffer)
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return gst.FLOW_OK
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def testNoProbe(self):
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self.event = gst.event_new_eos()
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gst.debug('created new eos %r, id %x' % (
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self.event, id(self.event)))
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self.assertEquals(self.event.__grefcount__, 1)
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gst.debug('pushing event on linked pad, no probe')
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self.assertEquals(self.src.push_event(self.event), True)
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gst.debug('pushed event on linked pad, no probe')
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# one refcount is held by our scope
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self.assertEquals(self.event.__grefcount__, 1)
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# the event has reffed the src pad as the src of the event
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self.assertEquals(self.src.__grefcount__, 2)
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# clear it
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self.event = None
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self.assertEquals(self.src.__grefcount__, 1)
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def testFalseProbe(self):
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probe_id = self.src.add_event_probe(self._probe_handler, False)
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self.event = gst.event_new_eos()
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gst.debug('created new eos %r, id %x' % (
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self.event, id(self.event)))
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self.assertEquals(self.event.__grefcount__, 1)
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# a false probe return drops the event and returns False
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self.assertEquals(self.src.push_event(self.event), False)
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# one ref in our local scope, another in self.events
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self.assertEquals(self.event.__grefcount__, 2)
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self.assertEquals(self.sink.__grefcount__, 1)
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# the event has reffed the src pad as the src of the event
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self.assertEquals(self.src.__grefcount__, 2)
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# remove the event from existence
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self.event = None
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self.events = None
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self.assertEquals(self.src.__grefcount__, 1)
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self.src.remove_buffer_probe(probe_id)
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def testTrueProbe(self):
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probe_id = self.src.add_event_probe(self._probe_handler, True)
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self.event = gst.event_new_eos()
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gst.debug('created new eos %r, id %x' % (
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self.event, id(self.event)))
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self.assertEquals(self.event.__grefcount__, 1)
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# a True probe lets it pass
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self.assertEquals(self.src.push_event(self.event), True)
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# one refcount is held by our scope, another is held on
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# self.events through _probe
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self.assertEquals(self.event.__grefcount__, 2)
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# they are not the same Python object ...
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self.failIf(self.event is self.events[0])
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self.failIf(id(self.event) == id(self.events[0]))
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# ... but they wrap the same GstEvent
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self.assertEquals(repr(self.event), repr(self.events[0]))
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self.failUnless(self.event == self.events[0])
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self.src.remove_buffer_probe(probe_id)
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self.assertEquals(len(self.events), 1)
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self.events = None
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self.assertEquals(self.event.__grefcount__, 1)
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# the event has reffed the src pad as the src of the event
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self.assertEquals(self.src.__grefcount__, 2)
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# clear it
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self.event = None
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self.assertEquals(self.src.__grefcount__, 1)
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def _probe_handler(self, pad, event, ret):
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gst.debug("probed, pad %r, event %r" % (pad, event))
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self.events.append(event)
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return ret
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# a test to show that we can link a pad from the probe handler
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class PadPushProbeLinkTest(TestCase):
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def setUp(self):
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TestCase.setUp(self)
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self.src = gst.Pad("src", gst.PAD_SRC)
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self.sink = gst.Pad("sink", gst.PAD_SINK)
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caps = gst.caps_from_string("foo/bar")
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self.src.set_caps(caps)
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self.sink.set_caps(caps)
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self.src.set_active(True)
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self.sink.set_active(True)
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self.sink.set_chain_function(self._chain_func)
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self.buffers = []
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def tearDown(self):
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self.assertEquals(sys.getrefcount(self.src), pygobject_2_13 and 2 or 3)
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self.assertEquals(self.src.__gstrefcount__, 1)
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self.src.set_caps(None)
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del self.src
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self.assertEquals(sys.getrefcount(self.sink), pygobject_2_13 and 2 or 3)
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self.assertEquals(self.sink.__gstrefcount__, 1)
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self.sink.set_caps(None)
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del self.sink
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TestCase.tearDown(self)
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def _chain_func(self, pad, buffer):
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self.buffers.append(buffer)
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return gst.FLOW_OK
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def testProbeLink(self):
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id = self.src.add_buffer_probe(self._probe_handler)
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self.buffer = gst.Buffer()
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self.assertEquals(self.buffer.__grefcount__, 1)
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gst.debug('pushing buffer on linked pad, no probe')
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self.assertEquals(self.src.push(self.buffer), gst.FLOW_OK)
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gst.debug('pushed buffer on linked pad, no probe')
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# one refcount is held by our scope, another is held on
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# self.buffers through _chain_func
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self.assertEquals(self.buffer.__grefcount__, 2)
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self.assertEquals(len(self.buffers), 1)
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self.buffers = None
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self.assertEquals(self.buffer.__grefcount__, 1)
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def _probe_handler(self, pad, buffer):
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self.src.link(self.sink)
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return True
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class PadTest(TestCase):
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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), pygobject_2_13 and 2 or 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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TestCase.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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def tearDown(self):
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del self.pipeline
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del self.srcpad
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TestCase.tearDown(self)
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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 PadProbePipeTest(TestCase):
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def setUp(self):
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TestCase.setUp(self)
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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), pygobject_2_13 and 2 or 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), pygobject_2_13 and 2 or 3)
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self.pipeline.add(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), pygobject_2_13 and 2 or 3)
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self.assertEquals(self.fakesink.__gstrefcount__, 2) # added
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self.assertEquals(sys.getrefcount(self.fakesink), pygobject_2_13 and 2 or 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), pygobject_2_13 and 2 or 3)
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self.assertEquals(self.fakesrc.__gstrefcount__, 2)
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self.assertEquals(sys.getrefcount(self.fakesrc), pygobject_2_13 and 2 or 3)
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self.assertEquals(self.fakesink.__gstrefcount__, 2)
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self.assertEquals(sys.getrefcount(self.fakesink), pygobject_2_13 and 2 or 3)
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def tearDown(self):
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# Refcount must be either 1 or 2, to allow for a possibly still running
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# state-recalculation thread
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self.assertTrue (self.pipeline.__gstrefcount__ >= 1 and self.pipeline.__gstrefcount__ <= 2)
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self.assertEquals(sys.getrefcount(self.pipeline), pygobject_2_13 and 2 or 3)
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self.assertEquals(self.fakesrc.__gstrefcount__, 2)
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self.assertEquals(sys.getrefcount(self.fakesrc), pygobject_2_13 and 2 or 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(self.fakesink.__gstrefcount__, 1) # parent gone
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self.assertEquals(sys.getrefcount(self.fakesrc), pygobject_2_13 and 2 or 3)
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self.assertEquals(sys.getrefcount(self.fakesink), pygobject_2_13 and 2 or 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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gst.debug('deleting fakesink')
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del self.fakesink
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self.gccollect()
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TestCase.tearDown(self)
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def testFakeSrcProbeOnceKeep(self):
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self.fakesrc.set_property('num-buffers', 1)
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self.fakesink.set_property('signal-handoffs', True)
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self.fakesink.connect('handoff', self._handoff_callback_fakesink)
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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._got_fakesink_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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gst.debug('waiting for fakesrc buffer')
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pass
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while not self._got_fakesink_buffer:
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gst.debug('waiting for fakesink buffer')
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pass
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gst.debug('got buffers from fakesrc and fakesink')
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self.assertEquals(self._got_fakesink_buffer, 1)
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pad.remove_buffer_probe(id)
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self.pipeline.set_state(gst.STATE_NULL)
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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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|
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 == 1000:
|
|
import time
|
|
# allow for context switching; a busy loop here locks up the
|
|
# streaming thread too much
|
|
time.sleep(.0001)
|
|
pad.remove_buffer_probe(id)
|
|
|
|
self.pipeline.set_state(gst.STATE_NULL)
|
|
|
|
def _probe_callback_fakesrc(self, pad, buffer):
|
|
self.failUnless(isinstance(pad, gst.Pad))
|
|
self.failUnless(isinstance(buffer, gst.Buffer))
|
|
self._got_fakesrc_buffer += 1
|
|
gst.debug('fakesrc sent buffer %r, %d total sent' % (
|
|
buffer, self._got_fakesrc_buffer))
|
|
return True
|
|
|
|
def _handoff_callback_fakesink(self, sink, buffer, pad):
|
|
self.failUnless(isinstance(buffer, gst.Buffer))
|
|
self.failUnless(isinstance(pad, gst.Pad))
|
|
self._got_fakesink_buffer += 1
|
|
gst.debug('fakesink got buffer %r, %d total received' % (
|
|
buffer, self._got_fakesrc_buffer))
|
|
gst.debug('pad %r, py refcount %d, go rc %d, gst rc %d' % (
|
|
pad, sys.getrefcount(pad), pad.__grefcount__, pad.__gstrefcount__))
|
|
return True
|
|
|
|
def testRemovingProbe(self):
|
|
self.fakesrc.set_property('num-buffers', 10)
|
|
|
|
handle = None
|
|
self._num_times_called = 0
|
|
def buffer_probe(pad, buffer, data):
|
|
self._num_times_called += 1
|
|
pad.remove_buffer_probe(handle)
|
|
return True
|
|
|
|
pad = self.fakesrc.get_pad('src')
|
|
data = []
|
|
handle = pad.add_buffer_probe(buffer_probe, data)
|
|
self.pipeline.set_state(gst.STATE_PLAYING)
|
|
m = self.pipeline.get_bus().poll(gst.MESSAGE_EOS, -1)
|
|
assert m
|
|
assert self._num_times_called == 1
|
|
self.pipeline.set_state(gst.STATE_NULL)
|
|
assert sys.getrefcount(buffer_probe) == 2
|
|
assert sys.getrefcount(data) == 2
|
|
# FIXME: having m going out of scope doesn't seem to be enough
|
|
# to get it gc collected, and it keeps a ref to the pipeline.
|
|
# Look for a way to not have to do this explicitly
|
|
del m
|
|
self.gccollect()
|
|
|
|
class PadRefCountTest(TestCase):
|
|
def testAddPad(self):
|
|
# add a pad to an element
|
|
e = gst.element_factory_make('fakesrc')
|
|
self.assertEquals(sys.getrefcount(e), pygobject_2_13 and 2 or 3)
|
|
self.assertEquals(e.__gstrefcount__, 1)
|
|
|
|
gst.debug('creating pad with name mypad')
|
|
pad = gst.Pad("mypad", gst.PAD_SRC)
|
|
self.failUnless(pad)
|
|
self.assertEquals(sys.getrefcount(pad), pygobject_2_13 and 2 or 3)
|
|
self.assertEquals(pad.__gstrefcount__, 1)
|
|
|
|
gst.debug('adding pad to element')
|
|
e.add_pad(pad)
|
|
self.assertEquals(sys.getrefcount(e), pygobject_2_13 and 2 or 3)
|
|
self.assertEquals(e.__gstrefcount__, 1)
|
|
self.assertEquals(sys.getrefcount(pad), pygobject_2_13 and 2 or 3)
|
|
self.assertEquals(pad.__gstrefcount__, 2) # added to element
|
|
|
|
gst.debug('deleting element and collecting')
|
|
self.gccollect()
|
|
del e
|
|
if not pygobject_2_13:
|
|
# the element will be collected at 'del e' if we're using
|
|
# pygobject >= 2.13.0
|
|
self.assertEquals(self.gccollect(), 1) # collected the element
|
|
self.assertEquals(sys.getrefcount(pad), pygobject_2_13 and 2 or 3)
|
|
self.assertEquals(pad.__gstrefcount__, 1) # removed from element
|
|
|
|
gst.debug('deleting pad and collecting')
|
|
del pad
|
|
if not pygobject_2_13:
|
|
# the pad will be collected at 'del pad' if we're using
|
|
# pygobject >= 2.13.0
|
|
self.assertEquals(self.gccollect(), 1) # collected the pad
|
|
gst.debug('going into teardown')
|
|
|
|
class PadBlockTest(TestCase):
|
|
def testCallbackFlush(self):
|
|
# check that the same block callback can be called more than once (weird
|
|
# test but it was broken)
|
|
|
|
def blocked_cb(pad, blocked):
|
|
pad.push_event(gst.event_new_flush_start())
|
|
|
|
pad = gst.Pad('src', gst.PAD_SRC)
|
|
pad.set_active(True)
|
|
pad.set_blocked_async(True, blocked_cb)
|
|
|
|
for i in xrange(10):
|
|
buf = gst.Buffer('ciao')
|
|
pad.push(buf)
|
|
pad.push_event(gst.event_new_flush_stop())
|
|
|
|
def testCallbackRefcount(self):
|
|
def blocked_cb(pad, blocked):
|
|
pad.set_blocked_async(False, unblocked_cb)
|
|
|
|
def unblocked_cb(pad, blocked):
|
|
pass
|
|
|
|
cb_refcount = sys.getrefcount(blocked_cb)
|
|
# sys.getrefcount() returns refcount + 1
|
|
self.assertEquals(cb_refcount, 2)
|
|
|
|
pad = gst.Pad('src', gst.PAD_SRC)
|
|
pad.set_active(True)
|
|
pad.set_blocked_async(True, blocked_cb)
|
|
# set_blocked_async refs the callback
|
|
self.assertEquals(sys.getrefcount(blocked_cb), 3)
|
|
|
|
buf = gst.Buffer('ciao')
|
|
pad.push(buf)
|
|
|
|
# in blocked_cb() we called set_blocked_async() with a different
|
|
# callback, so blocked_cb() should have been unreffed
|
|
cb_refcount_after = sys.getrefcount(blocked_cb)
|
|
self.assertEquals(sys.getrefcount(blocked_cb), cb_refcount)
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|