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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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102 lines
2.9 KiB
C++
102 lines
2.9 KiB
C++
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/* GStreamer
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* Copyright (C) 2023 Seungha Yang <seungha@centricular.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#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 <QTimer>
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#include <gst/gst.h>
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static int
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run_application (int argc, char ** argv, GstElement * pipeline)
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{
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QGuiApplication app(argc, argv);
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int ret;
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/* NOTE: Default API on Windows is D3D11 already */
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QQuickWindow::setGraphicsApi(QSGRendererInterface::Direct3D11);
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QQmlApplicationEngine engine;
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engine.load (QUrl (QStringLiteral ("qrc:/qml6d3d11sink-dyn-add.qml")));
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QQuickWindow *rootObject;
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rootObject = static_cast<QQuickWindow *> (engine.rootObjects().first());
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gst_element_set_state (pipeline, GST_STATE_PLAYING);
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GstElement *tee = gst_bin_get_by_name (GST_BIN (pipeline), "t");
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/* Add the qml6d3d11sink element on timer callback */
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QTimer::singleShot(5000, [&]()
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{
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GstElement *queue, *sink;
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QQuickItem *videoItem = rootObject->findChild<QQuickItem *> ("videoItem");
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queue = gst_element_factory_make ("queue", nullptr);
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sink = gst_element_factory_make ("qml6d3d11sink", nullptr);
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g_object_set (sink, "widget", videoItem, nullptr);
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gst_println ("Adding new qml6d3d11sink to pipeline");
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gst_bin_add_many (GST_BIN (pipeline), queue, sink, nullptr);
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gst_element_sync_state_with_parent (sink);
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gst_element_sync_state_with_parent (queue);
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gst_element_link_many (tee, queue, sink, nullptr);
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gst_object_unref (tee);
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});
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ret = app.exec();
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gst_element_set_state (pipeline, GST_STATE_NULL);
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return ret;
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}
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int
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main(int argc, char *argv[])
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{
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GstElement *pipeline = nullptr;
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GstElement *sink = nullptr;
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int exit_code;
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gst_init (&argc, &argv);
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pipeline = gst_parse_launch ("d3d11testsrc ! "
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"video/x-raw(memory:D3D11Memory),format=RGBA ! "
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"tee name=t allow-not-linked=true ! queue ! fakesink sync=true", nullptr);
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/* the plugin must be loaded before loading the qml file to register the
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* GstD3D11Qt6VideoItem */
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sink = gst_element_factory_make ("qml6d3d11sink", nullptr);
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gst_object_unref (sink);
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exit_code = run_application (argc, argv, pipeline);
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gst_object_unref (pipeline);
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gst_deinit ();
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return exit_code;
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}
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