[Qt] Add support for use GStreamer with the Qt build
Reviewed by Kenneth Christiansen, Tor Arne Vestbø.
JavaScriptCore:
Enable the build/inclusion of the wtf/QObject convenience classes.
WebCore:
Make it possible to use gstreamer with the Qt build via the USE_GSTREAMER macro. The
integration is rather basic at this point, allowing for software based rendering
only at the moment. AC integration and fullscreen playback is still missing.
- WebCore.pro: Added a bunch of gstreamer files to the build and guard it as a
build option with the USE_GSTREAMER macro.
- platform/graphics/MediaPlayer.cpp:
(WebCore::installedMediaEngines): Don't use the generic media player registration
when using GStreamer. These #ifdefs should be removed, but the gstreamer folks want
to be able to build with gstreamer _and_ another backend simultaenously.
- platform/graphics/gstreamer/ImageGStreamer.h:
- platform/graphics/gstreamer/ImageGStreamerQt.cpp: Added.
(ImageGStreamer::createImage):
(ImageGStreamer::ImageGStreamer):
(ImageGStreamer::~ImageGStreamer):
- platform/graphics/gstreamer/PlatformVideoWindowPrivate.h: Added.
- platform/graphics/gstreamer/PlatformVideoWindowQt.cpp: Added.
(FullScreenVideoWindow::FullScreenVideoWindow):
(FullScreenVideoWindow::keyPressEvent):
(FullScreenVideoWindow::event):
(PlatformVideoWindow::PlatformVideoWindow):
(PlatformVideoWindow::~PlatformVideoWindow):
(PlatformVideoWindow::prepareForOverlay):
