pub unsafe extern "C" fn gst_gl_context_thread_add(
context: *mut GstGLContext,
func: GstGLContextThreadFunc,
data: gpointer,
)
pub unsafe extern "C" fn gst_gl_context_thread_add(
context: *mut GstGLContext,
func: GstGLContextThreadFunc,
data: gpointer,
)