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| |
| #include "qgstreamervideorenderer_p.h" |
| #include <private/qvideosurfacegstsink_p.h> |
| #include <private/qgstutils_p.h> |
| #include <qabstractvideosurface.h> |
| #include <QtCore/qdebug.h> |
| |
| #include <gst/gst.h> |
| |
| static inline void resetSink(GstElement *&element, GstElement *v = nullptr) |
| { |
| if (element) |
| gst_object_unref(GST_OBJECT(element)); |
| |
| if (v) |
| qt_gst_object_ref_sink(GST_OBJECT(v)); |
| |
| element = v; |
| } |
| |
| QGstreamerVideoRenderer::QGstreamerVideoRenderer(QObject *parent) |
| : QVideoRendererControl(parent) |
| { |
| } |
| |
| QGstreamerVideoRenderer::~QGstreamerVideoRenderer() |
| { |
| resetSink(m_videoSink); |
| } |
| |
| void QGstreamerVideoRenderer::setVideoSink(GstElement *sink) |
| { |
| if (!sink) |
| return; |
| |
| resetSink(m_videoSink, sink); |
| emit sinkChanged(); |
| } |
| |
| GstElement *QGstreamerVideoRenderer::videoSink() |
| { |
| if (!m_videoSink && m_surface) { |
| auto sink = reinterpret_cast<GstElement *>(QVideoSurfaceGstSink::createSink(m_surface)); |
| resetSink(m_videoSink, sink); |
| } |
| |
| return m_videoSink; |
| } |
| |
| void QGstreamerVideoRenderer::stopRenderer() |
| { |
| if (m_surface) |
| m_surface->stop(); |
| } |
| |
| QAbstractVideoSurface *QGstreamerVideoRenderer::surface() const |
| { |
| return m_surface; |
| } |
| |
| void QGstreamerVideoRenderer::setSurface(QAbstractVideoSurface *surface) |
| { |
| if (m_surface != surface) { |
| resetSink(m_videoSink); |
| |
| if (m_surface) { |
| disconnect(m_surface.data(), SIGNAL(supportedFormatsChanged()), |
| this, SLOT(handleFormatChange())); |
| } |
| |
| bool wasReady = isReady(); |
| |
| m_surface = surface; |
| |
| if (m_surface) { |
| connect(m_surface.data(), SIGNAL(supportedFormatsChanged()), |
| this, SLOT(handleFormatChange())); |
| } |
| |
| if (wasReady != isReady()) |
| emit readyChanged(isReady()); |
| |
| emit sinkChanged(); |
| } |
| } |
| |
| void QGstreamerVideoRenderer::handleFormatChange() |
| { |
| setVideoSink(nullptr); |
| } |