the #GstAllocationParams
the allocation size
a #GstGLContext
a #GstGLAllocationParamsCopyFunc
a #GstGLAllocationParamsFreeFunc
the wrapped OpenGL handle
a #GDestroyNotify
the size of the struct (including and subclass data)
argument to call notify with
the wrapped data pointer
Copies the dynamically allocated data from src to dest. Direct subclasses
should call this function in their own overridden copy function.
the destination #GstGLAllocationParams
Frees the dynamically allocated data in params. Direct subclasses
should call this function in their own overridden free function.
allocation flags