Commit graph

6 commits

Author SHA1 Message Date
Haihua Hu
ac06d0d829 qmlglsink: check qt_context_ first in GstQSGTexture::bind()
When start qmlglsink app, it will set NULL buffer to GstQSGTexture
in which case that qt_context_ will be a random value and cause
gst_gl_context_activate() fail.

https://bugzilla.gnome.org/show_bug.cgi?id=770925
2016-09-07 00:15:02 +10:00
Matthew Waters
28d088fa2d glmemory: base classify and add the pbo memory on top
The base class is useful for having multiple backing memory types other
than the default.  e.g. IOSurface, EGLImage, dmabuf?

The PBO transfer logic is now inside GstGLMemoryPBO which uses GstGLBuffer
to manage the PBO memory.

This also moves the format utility functions into their own file.
2015-12-14 16:35:32 +11:00
Matthew Waters
aca25b521f qml: activate the wrapped context when binding
Mitigates the following critical

gst_gl_context_thread_add: assertion 'context->priv->active_thread == g_thread_self ()' failed
2015-11-20 11:09:45 +11:00
Matthew Waters
579b734346 qt: use our function table instead of directly calling gl functions
Otherwise when building with --as-needed we would need to link to
a GL or GLES library.

https://bugzilla.gnome.org/show_bug.cgi?id=754732
2015-09-10 00:33:40 +10:00
Matthew Waters
b8bb4cc50f qml: implement the required multiple GL context synchonisation
From GStreamer's GL context into the QML context
2015-08-08 17:30:42 +02:00
Matthew Waters
b1bbdceeb2 new qt5 qml GL video sink
Very much in the same spirit as the Gtk GL sink

Two things are provided
1. A QQuickItem subclass that renders out RGBA filled GstGLMemory
   buffers that is instantiated from qml.
2. A sink element that will push buffers into (1)

To use
1. Declare the GstGLVideoItem in qml with an appropriate
   objectName property set.
2. Get the aforementioned GstGLVideoItem from qml using something like

QQmlApplicationEngine engine;
engine.load(QUrl(QStringLiteral("qrc:/main.qml")));

QObject *rootObject = engine.rootObjects().first();
QQuickItem *videoItem = rootObject->findChild<QQuickItem *> ("videoItem");

3. Set the videoItem on the sink

https://bugzilla.gnome.org/show_bug.cgi?id=752185
2015-07-10 15:25:26 +10:00