C++ (Cpp) MessagePtr::isNull Examples

Example #1

File: refpointertest.cpp Project: xohm/qt-gstreamer

void RefPointerTest::messageDynamicCastTest()
{
    QGst::BinPtr bin = QGst::Bin::create();
    QGst::MessagePtr msg = QGst::ApplicationMessage::create(bin);
    QVERIFY(!msg.isNull());
    QVERIFY(!msg.dynamicCast<QGst::ApplicationMessage>().isNull());
    QVERIFY(msg.dynamicCast<QGst::EosMessage>().isNull());
}

Example #2

File: refpointertest.cpp Project: GStreamer/qt-gstreamer

void RefPointerTest::messageDynamicCastTest()
{
    QGst::Structure s("mystruct");
    s.setValue("frequency", 123456);
    QGst::BinPtr bin = QGst::Bin::create();
    QGst::MessagePtr msg = QGst::ApplicationMessage::create(bin, s);
    QVERIFY(!msg.isNull());
    QVERIFY(!msg.dynamicCast<QGst::ApplicationMessage>().isNull());
    QVERIFY(msg.dynamicCast<QGst::EosMessage>().isNull());
}

Example #3

File: refpointertest.cpp Project: GStreamer/qt-gstreamer

void RefPointerTest::cppWrappersTest()
{
    QGst::ElementPtr e = QGst::ElementFactory::make("playbin");
    QVERIFY(!e.isNull());

    {
        QGst::PipelinePtr pipeline = e.dynamicCast<QGst::Pipeline>();
        QVERIFY(!pipeline.isNull());
        //the C++ wrappers must be the same
        QCOMPARE(static_cast<QGlib::RefCountedObject*>(pipeline.operator->()),
                 static_cast<QGlib::RefCountedObject*>(e.operator->()));
    }

    {
        QGst::ChildProxyPtr proxy = e.dynamicCast<QGst::ChildProxy>();
        QVERIFY(!proxy.isNull());
        //the C++ wrappers must be the same
        QCOMPARE(static_cast<QGlib::RefCountedObject*>(proxy.operator->()),
                 static_cast<QGlib::RefCountedObject*>(e.operator->()));
    }

    {   //new wrap() should give the same C++ instance
        GstElement *gobj = e;
        QGst::ElementPtr e2 = QGst::ElementPtr::wrap(gobj);
        QCOMPARE(static_cast<QGlib::RefCountedObject*>(e2.operator->()),
                 static_cast<QGlib::RefCountedObject*>(e.operator->()));
    }

    {
        QGst::StreamVolumePtr sv = e.dynamicCast<QGst::StreamVolume>();
        QVERIFY(!sv.isNull());
        //now the C++ wrapper must not be the same, since Pipeline does not inherit StreamVolume
        QVERIFY(static_cast<QGlib::RefCountedObject*>(sv.operator->())
                != static_cast<QGlib::RefCountedObject*>(e.operator->()));
    }

    {
        QGst::Structure s("mystruct");
        s.setValue("days", 365);
        QGst::MessagePtr msg = QGst::ApplicationMessage::create(e, s);
        QVERIFY(!msg.isNull());
        QGst::MessagePtr msg2 = msg;
        QCOMPARE(static_cast<QGlib::RefCountedObject*>(msg.operator->()),
                 static_cast<QGlib::RefCountedObject*>(msg2.operator->()));
        QVERIFY(msg2 == msg);

        QGst::MessagePtr msg3 = QGst::MessagePtr::wrap(msg2);
        QVERIFY(static_cast<QGlib::RefCountedObject*>(msg3.operator->())
                != static_cast<QGlib::RefCountedObject*>(msg2.operator->()));
        QVERIFY(msg3 == msg2);
    }

    {
        QGst::MessagePtr msg = QGst::ElementMessage::create(e);
        QGst::MessagePtr msg2 = msg;
        QCOMPARE(static_cast<QGlib::RefCountedObject*>(msg.operator->()),
                 static_cast<QGlib::RefCountedObject*>(msg2.operator->()));
        QVERIFY(msg2 == msg);

        QGst::MessagePtr msg3 = QGst::MessagePtr::wrap(msg2);
        QVERIFY(static_cast<QGlib::RefCountedObject*>(msg3.operator->())
                != static_cast<QGlib::RefCountedObject*>(msg2.operator->()));
        QVERIFY(msg3 == msg2);
    }
}