QtGLVideoItem: Use QSharedPointer::data() for better compatibility
Older Qt versions didn't have QSharedPointer::get(), which is just a modern alias for QSharedPointer::data().
FAILED: ext/qt/libgstqmlgl.so.p/qtitem.cc.o
c++ -Iext/qt/libgstqmlgl.so.p -Iext/qt -I../ext/qt -I. -I.. -I../gst-libs -I/usr/include/glib-2.0 -I/usr/lib/aarch64-linux-gnu/glib-2.0/include -I/usr/include/gstreamer-1.0 -I/usr/include/orc-0.4 -I/usr/lib/aarch64-linux-gnu/gstreamer-1.0/include -I/usr/include/aarch64-linux-gnu/qt5/QtCore -I/usr/include/aarch64-linux-gnu/qt5 -I/usr/include/aarch64-linux-gnu/qt5/QtGui -I/usr/include/aarch64-linux-gnu/qt5/QtQml -I/usr/include/aarch64-linux-gnu/qt5/QtNetwork -I/usr/include/aarch64-linux-gnu/qt5/QtQuick -I/usr/include/aarch64-linux-gnu/qt5/QtX11Extras -I/usr/include/libdrm -flto -fdiagnostics-color=always -pipe -D_FILE_OFFSET_BITS=64 -std=c++11 -Wmissing-declarations -Wredundant-decls -Wwrite-strings -Winit-self -Wmissing-include-dirs -Wno-multichar -Wvla -Wpointer-arith -g -fdebug-prefix-map=/opt/good/src=. -Wformat -Werror=format-security -O3 -march=native -Wno-error -Wdate-time -fPIC -pthread -DHAVE_CONFIG_H -DHAVE_QT_X11 -DHAVE_QT_EGLFS -MD -MQ ext/qt/libgstqmlgl.so.p/qtitem.cc.o -MF ext/qt/libgstqmlgl.so.p/qtitem.cc.o.d -o ext/qt/libgstqmlgl.so.p/qtitem.cc.o -c ../ext/qt/qtitem.cc
In file included from /usr/include/gstreamer-1.0/gst/gst.h:55:0,
from /usr/include/gstreamer-1.0/gst/video/video.h:23,
from ../ext/qt/qtitem.cc:27:
../ext/qt/qtitem.cc: In destructor ‘virtual QtGLVideoItem::~QtGLVideoItem()’:
../ext/qt/qtitem.cc:138:86: error: ‘class QSharedPointer<QtGLVideoItemInterface>’ has no member named ‘get’
GST_INFO ("%p Destroying QtGLVideoItem and invalidating the proxy %p", this, proxy.get());
^
/usr/include/gstreamer-1.0/gst/gstinfo.h:682:31: note: in definition of macro ‘GST_CAT_LEVEL_LOG’
(GObject *) (object), __VA_ARGS__); \
^~~~~~~~~~~
../ext/qt/qtitem.cc:138:3: note: in expansion of macro ‘GST_INFO’
GST_INFO ("%p Destroying QtGLVideoItem and invalidating the proxy %p", this, proxy.get());
^
Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-good/-/merge_requests/673>