This helper shall be used by classes implementing the #GstVideoOverlay interface that want the render rectangle to be controllable using properties. This helper will install "render-rectangle" property into the class.
Since 1.14
The class on which the properties will be installed
The first free property ID to use
See Implementation
This helper shall be used by classes implementing the #GstVideoOverlay interface that want the render rectangle to be controllable using properties. This helper will install "render-rectangle" property into the class.
Since 1.14