C++ (Cpp) qt_gst_object_ref_sink примеры использования

Пример #1

Файл: qgstreamervideowidget.cpp Проект: SchleunigerAG/WinEC7_Qt5.3.1_Fixes

void QGstreamerVideoWidgetControl::createVideoWidget()
{
    if (m_widget)
        return;

    m_widget = new QGstreamerVideoWidget;

    m_widget->installEventFilter(this);
    m_windowId = m_widget->winId();

    m_videoSink = gst_element_factory_make ("xvimagesink", NULL);
    if (m_videoSink) {
        // Check if the xv sink is usable
        if (gst_element_set_state(m_videoSink, GST_STATE_READY) != GST_STATE_CHANGE_SUCCESS) {
            gst_object_unref(GST_OBJECT(m_videoSink));
            m_videoSink = 0;
        } else {
            gst_element_set_state(m_videoSink, GST_STATE_NULL);

            g_object_set(G_OBJECT(m_videoSink), "force-aspect-ratio", 1, (const char*)NULL);
        }
    }

    if (!m_videoSink)
        m_videoSink = gst_element_factory_make ("ximagesink", NULL);

    qt_gst_object_ref_sink(GST_OBJECT (m_videoSink)); //Take ownership


}

Пример #2

Файл: qgstreamervideorenderer.cpp Проект: SchleunigerAG/WinEC7_Qt5.3.1_Fixes

GstElement *QGstreamerVideoRenderer::videoSink()
{
    if (!m_videoSink && m_surface) {
        m_videoSink = QVideoSurfaceGstSink::createSink(m_surface);
        qt_gst_object_ref_sink(GST_OBJECT(m_videoSink)); //Take ownership
    }

    return reinterpret_cast<GstElement*>(m_videoSink);
}

Пример #3

Файл: qgstreamervideowindow.cpp Проект: Drakey83/steamlink-sdk

QGstreamerVideoWindow::QGstreamerVideoWindow(QObject *parent, const char *elementName)
    : QVideoWindowControl(parent)
    , m_videoSink(0)
    , m_windowId(0)
    , m_aspectRatioMode(Qt::KeepAspectRatio)
    , m_fullScreen(false)
    , m_colorKey(QColor::Invalid)
{
    if (elementName)
        m_videoSink = gst_element_factory_make(elementName, NULL);
    else
        m_videoSink = gst_element_factory_make("xvimagesink", NULL);

    if (m_videoSink) {
        qt_gst_object_ref_sink(GST_OBJECT(m_videoSink)); //Take ownership

        GstPad *pad = gst_element_get_static_pad(m_videoSink,"sink");
        m_bufferProbeId = gst_pad_add_buffer_probe(pad, G_CALLBACK(padBufferProbe), this);
        gst_object_unref(GST_OBJECT(pad));
    }
}