Python Pipeline.setState方法代码示例

# 需要导入模块: from pitivi.pipeline import Pipeline [as 别名]
# 或者: from pitivi.pipeline.Pipeline import setState [as 别名]
    def testPendingLink(self):
        a = Action()
        p = Pipeline()
        src = common.FakeGnlFactory()
        src.addOutputStream(VideoStream(gst.Caps("video/x-raw-yuv"),
                                        pad_name="src"))
        sink = common.FakeSinkFactory()
        sink.addInputStream(MultimediaStream(gst.Caps("any"),
                                             pad_name="sink"))

        # set the link, it will be activated once the pad is added
        a.setLink(src, sink)
        # Let's see if the link is present
        self.assertEquals(a._links, [(src, sink, None, None)])

        p.setAction(a)

        gst.debug("about to activate action")
        a.activate()
        # only the producer and the consumer are created, the other elements are
        # created dinamically
        self.assertEquals(len(list(p._pipeline.elements())), 2)

        p.setState(STATE_PLAYING)
        time.sleep(1)
        # and make sure that all other elements were created (4)
        # FIXME  if it's failing here, run the test a few times trying to raise
        # the time.sleep() above, it may just be racy...
        self.assertEquals(len(list(p._pipeline.elements())), 4)

        a.deactivate()
        p.setState(STATE_NULL)
        self.assertEquals(len(list(p._pipeline.elements())), 0)
        p.release()

# 需要导入模块: from pitivi.pipeline import Pipeline [as 别名]
# 或者: from pitivi.pipeline.Pipeline import setState [as 别名]
    def testDynamicLink(self):
        a = DynamicAction()
        p = Pipeline()
        src = common.FakeGnlFactory()
        src.addOutputStream(VideoStream(gst.Caps("video/x-raw-yuv"),
                                        pad_name="src"))

        # the link will be added dynamically
        self.assertEquals(a._links, [])

        p.setAction(a)
        a.addProducers(src)

        self.assertEquals(len(list(p._pipeline.elements())), 0)

        a.activate()
        # theoretically... there shouldn't only be the source, since
        # the pad for the source hasn't been created yet (and therefore not
        # requiring a consumer
        self.assertEquals(len(list(p._pipeline.elements())), 1)

        p.setState(STATE_PLAYING)
        time.sleep(1)
        p.getState()

        # and make sure that all other elements were created (4)
        self.assertEquals(len(list(p._pipeline.elements())), 4)

        p.setState(STATE_READY)
        time.sleep(1)
        a.deactivate()

        self.assertEquals(len(list(p._pipeline.elements())), 0)
        p.setState(STATE_NULL)

        p.release()

# 需要导入模块: from pitivi.pipeline import Pipeline [as 别名]
# 或者: from pitivi.pipeline.Pipeline import setState [as 别名]
class TestPipeline(TestCase):

    def setUp(self):
        TestCase.setUp(self)
        gst.debug("start")
        self.pipeline = Pipeline()
        self.monitor = SignalMonitor(self.pipeline, 'action-added',
                                     'action-removed', 'factory-added',
                                     'factory-removed', 'state-changed')
        self.assertEquals(self.monitor.action_added_count, 0)
        self.assertEquals(self.monitor.action_added_collect, [])

    def tearDown(self):
        self.pipeline.setState(STATE_NULL)
        self.pipeline.release()
        self.monitor.disconnectFromObj(self.pipeline)
        del self.pipeline
        del self.monitor
        TestCase.tearDown(self)

    def testAddRemoveActionSimple(self):
        """ Simple add/remove of Actions """
        ac1 = BogusAction()

        # add the action to the pipeline
        res = self.pipeline.addAction(ac1)
        # the returned value should be the given action
        self.assertEquals(res, ac1)
        # it should now be in the list of actions...
        self.failUnlessEqual(self.pipeline.actions, [ac1])
        # ... and the action should be set to that pipeline
        self.failUnlessEqual(ac1.pipeline, self.pipeline)
        # the 'action-added' signal should be triggered once
        self.assertEquals(self.monitor.action_added_count, 1)
        # And it contained our action
        self.assertEquals(self.monitor.action_added_collect, [(ac1, )])

        # if we try to add that action again, it should be silently ignored
        res = self.pipeline.addAction(ac1)
        self.assertEquals(res, ac1)
        # the list of actions shouldn't have changed
        self.failUnlessEqual(self.pipeline.actions, [ac1])
        # it shouldn't have changed the pipeline set on action
        self.failUnlessEqual(ac1.pipeline, self.pipeline)
        # the 'action-added' signal should NOT have been triggered again
        self.assertEquals(self.monitor.action_added_count, 1)

        # And now to remove it
        self.pipeline.removeAction(ac1)
        # the 'action-removed' signal should have been triggered once..
        self.assertEquals(self.monitor.action_removed_count, 1)
        # .. with the action as an argument
        self.assertEquals(self.monitor.action_removed_collect, [(ac1, )])
        # And there should be no actions left on the pipeline
        self.assertEquals(self.pipeline.actions, [])

    def testAddRemoveActionAdvanced(self):
        """ Advanced add/remove of Actions """
        ac1 = BogusAction()
        ac2 = BogusAction()
        p2 = Pipeline()

        res = self.pipeline.addAction(ac1)
        self.assertEquals(self.pipeline.actions, [ac1])

        # we can't add an action to two pipelines at the same time
        self.failUnlessRaises(PipelineError, p2.addAction, ac1)

        self.pipeline.removeAction(ac1)
        self.assertEquals(self.pipeline.actions, [])

        res = self.pipeline.setAction(ac1)
        self.assertEquals(res, ac1)
        self.assertEquals(self.pipeline.actions, [ac1])
        # calling setAction while a similar action is already set should
        # return the existing action and not change anything else
        res = self.pipeline.setAction(ac2)
        self.assertEquals(res, ac1)
        self.assertEquals(self.pipeline.actions, [ac1])

        # we can't remove active actions while in PAUSED/PLAYING
        self.pipeline.setState(STATE_PAUSED)
        ac1.state = STATE_ACTIVE
        self.assertEquals(self.pipeline.getState(), STATE_PAUSED)
        self.failUnlessRaises(PipelineError, self.pipeline.removeAction, ac1)

        # but we can remove deactivated actions while in PAUSED/PLAYING
        self.pipeline.setState(STATE_PAUSED)
        ac1.state = STATE_NOT_ACTIVE
        self.assertEquals(self.pipeline.getState(), STATE_PAUSED)
        self.pipeline.removeAction(ac1)

        # we can add actions while in PAUSED/PLAYING
        res = self.pipeline.addAction(ac2)
        self.assertEquals(res, ac2)
        self.assertEquals(self.pipeline.actions, [ac2])

        self.pipeline.removeAction(ac2)
        p2.release()

#.........这里部分代码省略.........

# 需要导入模块: from pitivi.pipeline import Pipeline [as 别名]
# 或者: from pitivi.pipeline.Pipeline import setState [as 别名]
    def testPipelineAction(self):
        """Testing pipeline state interaction"""
        p = Pipeline()
        a = Action()
        src = VideoTestSourceFactory()
        sink = common.FakeSinkFactory()
        sink.addInputStream(MultimediaStream(gst.Caps("any"), pad_name="sink"))

        # set the Action on the Pipeline
        p.setAction(a)
        self.assertEquals(p.actions, [a])

        # set the Producer and Consumer
        a.addProducers(src)
        a.addConsumers(sink)

        a.setLink(src, sink)

        # activate the Action
        a.activate()

        self.failUnlessEqual(src.current_bins, 1)
        self.failUnlessEqual(sink.current_bins, 1)

        # call get*ForFactoryStream(..., automake=False). They will raise
        # exceptions if the action didn't create the elements.
        bin = p.getBinForFactoryStream(src, automake=False)
        p.releaseBinForFactoryStream(src)

        tee = p.getTeeForFactoryStream(src, automake=False)
        p.releaseTeeForFactoryStream(src)

        bin = p.getBinForFactoryStream(sink, automake=False)

        queue = p.getQueueForFactoryStream(sink, automake=False)

        self.failUnlessEqual(queue.get_pad('src').get_peer().get_parent(), bin)

        p.releaseBinForFactoryStream(sink)
        p.releaseQueueForFactoryStream(sink)

        # switch to PLAYING
        p.setState(STATE_PLAYING)

        # wait half a second

        # switch to READY
        p.setState(STATE_READY)

        # deactivate action
        a.deactivate()

        # since we're the last Action to be release, the tees
        # and queues should have gone
        self.failUnlessEqual(src.current_bins, 0)
        self.failUnlessEqual(sink.current_bins, 0)

        # remove the action from the pipeline
        p.removeAction(a)

        # the gst.Pipeline should be empty !
        self.assertEquals(list(p._pipeline.elements()), [])

        p.release()