// SPDX-License-Identifier: BSD-2-Clause // // Copyright (C) 2022, Matthew Waters // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are met: // // a) Redistributions of source code must retain the above copyright notice, // this list of conditions and the following disclaimer. // // b) Redistributions in binary form must reproduce the above copyright // notice, this list of conditions and the following disclaimer in // the documentation and/or other materials provided with the distribution. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, // THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE // ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE // LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR // CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF // SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN // CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF // THE POSSIBILITY OF SUCH DAMAGE. #include #include #include #include #include #include class SetPlaying : public QRunnable { public: SetPlaying(GstElement *); ~SetPlaying(); void run (); private: GstElement * pipeline_; }; SetPlaying::SetPlaying (GstElement * pipeline) { this->pipeline_ = pipeline ? static_cast (gst_object_ref (pipeline)) : NULL; } SetPlaying::~SetPlaying () { if (this->pipeline_) gst_object_unref (this->pipeline_); } void SetPlaying::run () { if (this->pipeline_) gst_element_set_state (this->pipeline_, GST_STATE_PLAYING); } int main(int argc, char *argv[]) { int ret; gst_init (&argc, &argv); { QGuiApplication app(argc, argv); QQuickWindow::setGraphicsApi(QSGRendererInterface::OpenGL); GstElement *pipeline = gst_pipeline_new (NULL); GstElement *src = gst_element_factory_make ("videotestsrc", NULL); GstElement *capsfilter = gst_element_factory_make ("capsfilter", NULL); GstCaps *caps = gst_caps_from_string ("video/x-raw,format=YV12"); g_object_set (capsfilter, "caps", caps, NULL); gst_clear_caps (&caps); GstElement *glupload = gst_element_factory_make ("glupload", NULL); /* the plugin must be loaded before loading the qml file to register the * GstGLVideoItem qml item */ GstElement *sink = gst_element_factory_make ("qml6glsink", NULL); g_assert (src && glupload && sink); gst_bin_add_many (GST_BIN (pipeline), src, capsfilter, glupload, sink, NULL); gst_element_link_many (src, capsfilter, glupload, sink, NULL); QQmlApplicationEngine engine; engine.load(QUrl(QStringLiteral("qrc:/main.qml"))); QQuickItem *videoItem; QQuickWindow *rootObject; /* find and set the videoItem on the sink */ rootObject = static_cast (engine.rootObjects().first()); videoItem = rootObject->findChild ("videoItem"); g_assert (videoItem); g_object_set(sink, "widget", videoItem, NULL); rootObject->scheduleRenderJob (new SetPlaying (pipeline), QQuickWindow::BeforeSynchronizingStage); ret = app.exec(); gst_element_set_state (pipeline, GST_STATE_NULL); gst_object_unref (pipeline); } gst_deinit (); return ret; }