Lets gst.BaseTransform.BaseTransform sub-classes to know the memory allocator used by the base class and its params.
Unref the allocator after use it.
the gstreamer.Allocator used
the gstreamer.AllocationParams of allocator
Lets gst.BaseTransform.BaseTransform sub-classes to know the memory allocator used by the base class and its params.
Unref the allocator after use it.