GstMemory * parent, gsize slice_size,
gpointer data, gsize maxsize, gsize align, gsize offset, gsize size,
gpointer user_data, GDestroyNotify notify)
GstMemory * parent, gsize slice_size,
gpointer data, gsize maxsize, gsize align, gsize offset, gsize size,
gpointer user_data, GDestroyNotify notify)