To use the node in your project you should have the gst/gst-buffer library installed. Use the “File → Add Library” menu item in XOD IDE if you don’t have it yet. See Using libraries for more info.
C++ implementation
struct State {
};
{{ GENERATED_CODE }}
void evaluate(Context ctx) {
if (!isInputDirty<input_UPD>(ctx))
return;
emitValue<output_DONE>(ctx, true);
emitValue<output_MEM>(ctx, getValue<input_NEW>(ctx));
}