pub unsafe extern "C" fn gst_buffer_add_gl_sync_meta_full(
context: *mut GstGLContext,
buffer: *mut GstBuffer,
data: gpointer,
) -> *mut GstGLSyncMeta
pub unsafe extern "C" fn gst_buffer_add_gl_sync_meta_full(
context: *mut GstGLContext,
buffer: *mut GstBuffer,
data: gpointer,
) -> *mut GstGLSyncMeta