GLMemoryEGL.initOnce
void initOnce() static nothrowInitializes the GL Memory allocator. It is safe to call this function multiple times. This must be called before any other GstGLMemoryEGL operation.
void initOnce() static nothrowInitializes the GL Memory allocator. It is safe to call this function multiple times. This must be called before any other GstGLMemoryEGL operation.