mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-03 15:06:34 +00:00
89 lines
2.3 KiB
C++
89 lines
2.3 KiB
C++
#include <QApplication>
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#include <QQmlApplicationEngine>
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#include <QQuickWindow>
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#include <QQuickItem>
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#include <QRunnable>
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#include <gst/gst.h>
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class SetPlaying : public QRunnable
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{
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public:
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SetPlaying(GstElement *);
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~SetPlaying();
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void run ();
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private:
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GstElement * pipeline_;
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};
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SetPlaying::SetPlaying (GstElement * pipeline)
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{
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this->pipeline_ = pipeline ? static_cast<GstElement *> (gst_object_ref (pipeline)) : NULL;
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}
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SetPlaying::~SetPlaying ()
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{
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if (this->pipeline_)
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gst_object_unref (this->pipeline_);
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}
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void
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SetPlaying::run ()
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{
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if (this->pipeline_)
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gst_element_set_state (this->pipeline_, GST_STATE_PLAYING);
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}
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int main(int argc, char *argv[])
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{
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int ret;
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gst_init (&argc, &argv);
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{
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QGuiApplication app(argc, argv);
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QQuickWindow::setGraphicsApi(QSGRendererInterface::OpenGL);
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GstElement *pipeline = gst_pipeline_new (NULL);
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GstElement *src = gst_element_factory_make ("videotestsrc", NULL);
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GstElement *capsfilter = gst_element_factory_make ("capsfilter", NULL);
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GstCaps *caps = gst_caps_from_string ("video/x-raw,format=YV12");
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g_object_set (capsfilter, "caps", caps, NULL);
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gst_clear_caps (&caps);
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GstElement *glupload = gst_element_factory_make ("glupload", NULL);
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/* the plugin must be loaded before loading the qml file to register the
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* GstGLVideoItem qml item */
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GstElement *sink = gst_element_factory_make ("qml6glsink", NULL);
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g_assert (src && glupload && sink);
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gst_bin_add_many (GST_BIN (pipeline), src, capsfilter, glupload, sink, NULL);
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gst_element_link_many (src, capsfilter, glupload, sink, NULL);
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QQmlApplicationEngine engine;
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engine.load(QUrl(QStringLiteral("qrc:/main.qml")));
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QQuickItem *videoItem;
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QQuickWindow *rootObject;
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/* find and set the videoItem on the sink */
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rootObject = static_cast<QQuickWindow *> (engine.rootObjects().first());
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videoItem = rootObject->findChild<QQuickItem *> ("videoItem");
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g_assert (videoItem);
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g_object_set(sink, "widget", videoItem, NULL);
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rootObject->scheduleRenderJob (new SetPlaying (pipeline),
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QQuickWindow::BeforeSynchronizingStage);
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ret = app.exec();
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gst_element_set_state (pipeline, GST_STATE_NULL);
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gst_object_unref (pipeline);
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}
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gst_deinit ();
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return ret;
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}
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